Tokushima University / Educator and Researcher Directory --- Emoto, Takahiro

Personal Web Page

https://researchmap.jp/UETQ (researchmap)

Field of Study

○	Biomedical Engineering

Subject of Study

○	医療支援を目指した生体信号解析システムの開発 (生体音響, 生体計測, 生体情報, 生体モデリング, 生体シミュレーション)

Book / Paper

Book:

1.	Takahiro Emoto : 腸音図のとり方と読み方, 株式会社中外医学社, Mar. 2019.
2.	Takahiro Emoto, Toshiya Okahisa, Masatake Akutagawa and Yohsuke Kinouchi : 腸音図, 文光堂, 2015.

Academic Paper (Judged Full Paper):

1.	MARUYAMA Junya, Takahiro Emoto, Satoru Kimura, Yoshitaka Suzuki, SHINKAI Mizuki, SHIBAGAKI Akari, Yoshizo Matsuka and Fumio Shichijo : 成人健常者における炭酸水嚥下量が嚥下音の音響特性に与える影響, Transactions of the Japanese Society for Medical and Biological Engineering, Vol.62, No.23, 144-152, 2024.
2.	Takeyuki Haraguchi, Takahiro Emoto, Takahiro Hirayama, Yuki Imai, Masahiro Kato and Tomoya Hirano : Peak-Frequency Histogram Similarity of Bowel Sounds for the Evaluation of Intestinal Conditions, Applied Sciences, Vol.13, No.3, 1405, 2023. (Tokushima University Institutional Repository) ● Metadata: 118870 (Link to Publication Site) ● Publication site (DOI): 10.3390/app13031405 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85147904456 (Tokushima University Institutional Repository: 118870, DOI: 10.3390/app13031405, Elsevier: Scopus)
3.	Kenji Hamabe, Takahiro Emoto, Osamu Jinnouchi, Naoki Toda and Ikuji Kawata : Auditory Property-Based Features and Artificial Neural Network Classifiers for the Automatic Detection of Low-Intensity Snoring/Breathing Episodes, Applied Sciences, Vol.12(4), 2242, 2022. (Tokushima University Institutional Repository) ● Metadata: 118871 (Link to Publication Site) ● Publication site (DOI): 10.3390/app12042242 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85125134615 (Tokushima University Institutional Repository: 118871, DOI: 10.3390/app12042242, Elsevier: Scopus)
4.	Ngan Thi Kim Bui, Kazuaki Mawatari, Takahiro Emoto, Shiho Fukushima, Takaaki Shimohata, Takashi Uebanso, Masatake Akutagawa, Yohsuke Kinouchi and Akira Takahashi : UV-LED irradiation reduces the infectivity of herpes simplex virus type 1 by targeting different viral components depending on the peak wavelength., Journal of Photochemistry and Photobiology B: Biology, Vol.228, 112410, 2022. (Summary) Herpes simplex virus type 1 (HSV-1) is an enveloped virus that mainly infects humans. Given its high global prevalence, disinfection is critical for reducing the risk of infection. Ultraviolet-light-emitting diodes (UV-LEDs) are eco-friendly irradiating modules with different peak wavelengths, but the molecules degraded by UV-LED irradiation have not been clarified. To identify the target viral molecules of UV-LEDs, we exposed HSV-1 suspensions to UV-LED irradiation at wavelengths of 260-, 280-, 310-, and 365-nm and measured viral DNA, protein, and lipid damage and infectivity in host cells. All UV-LEDs substantially reduced by inhibiting host cell transcription, but 260- and 280-nm UV-LEDs had significantly stronger virucidal efficiency than 310- and 365-nm UV-LEDs. Meanwhile, 260- and 280-nm UV-LEDs induced the formation of viral DNA photoproducts and the degradation of viral proteins and some phosphoglycerolipid species. Unlike 260- and 280-nm UV-LEDs, 310- and 365-nm UV-LEDs decreased the viral protein levels, but they did not drastically change the levels of viral DNA photoproducts and lipophilic metabolites. These results suggest that UV-LEDs reduce the infectivity of HSV-1 by targeting different viral molecules based on the peak wavelength. These findings could facilitate the optimization of UV-LED irradiation for viral inactivation. (Keyword) Disinfection / Herpesvirus 1, Human / Humans / Ultraviolet Rays / Viral Structures / Virus Inactivation / Water Purification (Tokushima University Institutional Repository) ● Metadata: 117004 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jphotobiol.2022.112410 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 35193038 ● Search Scopus @ Elsevier (PMID): 35193038 ● Search Scopus @ Elsevier (DOI): 10.1016/j.jphotobiol.2022.112410 (Tokushima University Institutional Repository: 117004, DOI: 10.1016/j.jphotobiol.2022.112410, PubMed: 35193038)
5.	Hiroo Tarao, Masatake Akutagawa, Takahiro Emoto, Amane Takei, Hiromichi Yumoto, Toshihiko Tominaga, Toshitaka Ikehara and Yosuke Kinouchi : Evaluation of Temperature Increase from Joule Heat in Numerical Tooth Model by Applying 500 kHz Current for Apical Periodontitis Treatment Effect of applied voltage and tooth conductivity, Bioelectromagnetics, Vol.42, No.3, 224-237, 2021. (Summary) For apical periodontitis treatments, a new method with the insertion of an electrode into the root canal of a tooth and application of a current at 500 kHz to sterilize the area by Joule heat has attracted attention. However, few studies have quantified the temperature increase in the root canal. This study aimed to investigate the basic characteristics of the temperature increase in a simple and standard tooth model when energizing a current at 500 kHz to the numerical tooth model with typical electrical and physical properties. We developed a numerical model of a standard tooth (dentin) and periodontal tissues consisting of an alveolar bone, cortical bone, and gingiva, and physiological saline in a root canal and calculated the temperature increase inside the numerical model by a coupled analysis of current and heat when a voltage was applied across the electrodes. The calculated results for the different applied voltages showed a temperature increase at the apical portion of the root canal, which increased with the applied voltage even for the same total supplied energy. The temperature increase occurred at the apical portion of the root canal as the tooth conductivity decreased. When the tooth conductivity was high, a current passed through the dentin, which led to a decrease in the temperature at the apical portion of the root canal. However, a chemical solution with a higher conductivity in the root canal tended to increase the temperature at the apical portion of the root canal, regardless of the tooth conductivity. More efficient approaches for increasing the spatial and temporal temperature for the tooth model target are needed. © 2021 Bioelectromagnetics Society. (Link to Publication Site) ● Publication site (DOI): 10.1002/bem.22325 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 33537989 ● Search Scopus @ Elsevier (PMID): 33537989 ● Search Scopus @ Elsevier (DOI): 10.1002/bem.22325 (DOI: 10.1002/bem.22325, PubMed: 33537989)
6.	Kensuke Horiyama, Takahiro Emoto, Takeyuki Haraguchi, Takashi Uebanso, Yuki Naito, Takuma Gyobu, Kenta Kanemoto, Junichi Inobe, Ayumi Sano, Masatake Akutagawa and Akira Takahashi : Bowel sound-based features to investigate the effect of coffee and soda on gastrointestinal motility, Biomedical Signal Processing and Control, Vol.66, 102425, 2021. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.bspc.2021.102425 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85101785195 (DOI: 10.1016/j.bspc.2021.102425, Elsevier: Scopus)
7.	Masaki Kawano and Takahiro Emoto : Polygonally Meshed Dipole Model Simulation of the Electrical Field Produced by the Stomach and Intestines, Computational and Mathematical Methods in Medicine, Vol.2020, 1-12, 2020. (Summary) Cutaneous electrogastrography (EGG) is used in clinical and physiological fields to noninvasively measure the electrical activity of the stomach and intestines. Dipole models that mathematically express the electrical field characteristics generated by the stomach and intestines have been developed to investigate the relationship between the electrical control activity (ECA) (slow waves) shown in EGG and the internal gastric electrical activity. However, these models require a mathematical description of the movement of an annular band of dipoles, which limits the shape that can be modeled. In this study, we propose a novel polygonally meshed dipole model to conveniently reproduce ECA based on the movement of the annular band in complex shapes, such as the shape of the stomach and intestines, constructed in three-dimensional (3D) space. We show that the proposed model can reproduce ECA simulation results similar to those obtained using conventional models. Moreover, we show that the proposed model can reproduce the ECA produced by a complex geometrical shape, such as the shape of the intestines. The study results indicate that ECA simulations can be conducted based on structures that more closely resemble real organs than those used in conventional dipole models, with which, because of their intrinsic construction, it would be difficult to include realistic complex shapes, using the mathematical description of the movement of an annular band of dipoles. Our findings provide a powerful new approach for computer simulations based on the electric dipole model. (Keyword) Computational Biology / Computer Simulation / Electrodes / Electromyography / Electrophysiological Phenomena / Humans / Imaging, Three-Dimensional / Intestines / Models, Anatomic / Models, Biological / Stomach (Tokushima University Institutional Repository) ● Metadata: 116519 (Link to Publication Site) ● Publication site (DOI): 10.1155/2020/2971358 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 33178331 ● Search Scopus @ Elsevier (PMID): 33178331 ● Search Scopus @ Elsevier (DOI): 10.1155/2020/2971358 (Tokushima University Institutional Repository: 116519, DOI: 10.1155/2020/2971358, PubMed: 33178331)
8.	Miki Yasui-Maetani, Kazuaki Mawatari, Airi Honjo, Bui Kim Thi Ngan, Takaaki Shimohata, Takashi Uebanso, Mutsumi Aihara, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi and Akira Takahashi : Identification of Genes Associated with Sensitivity to Ultraviolet A (UVA) Irradiation by Transposon Mutagenesis of Vibrio parahaemolyticu, Applied Sciences, Vol.10, No.16, 2020. (Tokushima University Institutional Repository) ● Metadata: 115319 (Link to Publication Site) ● Publication site (DOI): 10.3390/app10165549 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.3390/app10165549 (Tokushima University Institutional Repository: 115319, DOI: 10.3390/app10165549)
9.	Maria Ulfa, Momoyo Azuma, Masami Satou, Takaaki Shimohata, Shiho Fukushima, Junko Kido, Mariko Nakamoto, Takashi Uebanso, Kazuaki Mawatari, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi and Akira Takahashi : Inactivation of Extended-spectrum β-Lactamase (ESBL)-producing Escherichia Coli by UVA-LED Irradiation System., The Journal of Medical Investigation : JMI, Vol.67, No.1-2, 163-169, 2020. (Summary) The prevalence of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli is increasing rapidly and spreading worldwide, particularly in Asia, compared to other regions. In the last ten years, in our hospital, in particular, there has been a < 30% increase. To prevent the spread of ESBL in hospitals and the community, the ultraviolet (UV) A-light-emitting diode (LED) irradiation device was used to inactivate ESBL-E. coli in human livestock and the environment. ESBL-E. coli and E. coli bacterial samples were collected from patients at Tokushima University Hospital (Tokushima City, Japan). The UVA-LED irradiation system had 365 nm single wavelength, and the current of the circuit was set to 0.23 or 0.50 A consistently. Results demonstrated that UVA-LED was useful for the inactivation of ESBL-E. coli and E. coli. The minimum energy dosage required to inactivate ESBL-E. coli and E. coli was 40.76 J/cm2 (45 min) in the first type of UVA-LED and 38.85 J/cm2 (5 min) in the second type. There were no significant differences between ESBL-E. coli and E. coli. The inactivation of ESBL-E. coli was dependent on energy. These findings suggest that UVA-LED with 365 nm single wavelength could be useful for surface decontamination in healthcare facilities. J. Med. Invest. 67 : 163-169, February, 2020. (Tokushima University Institutional Repository) ● Metadata: 114642 (Link to Publication Site) ● Publication site (DOI): 10.2152/jmi.67.163 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 32378601 ● Summary page in Scopus @ Elsevier: 2-s2.0-85084329310 (Tokushima University Institutional Repository: 114642, DOI: 10.2152/jmi.67.163, PubMed: 32378601, Elsevier: Scopus)
10.	Sameen Ahmed Malik, Tan Tian Swee, Nik Nik Nizam Ahmad Malek, Azli Yahya, Takahiro Emoto, Masatake Akutagawa, Leong Kah Meng, Tan Jia Hou, Tengku Tengku Iskandar Ahmad Alang and Kelvin Chia Ling Hiik : Effectiveness of visible and ultraviolet light emitting diodes for inactivation of Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli: A comparative study., Malaysian Journal of Fundamental and Applied Sciences, Vol.15, No.4, 572-576, 2019. (Link to Publication Site) ● Publication site (DOI): 10.11113/mjfas.v15n4.1207 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.11113/mjfas.v15n4.1207 (DOI: 10.11113/mjfas.v15n4.1207)
11.	Yang Yi, Qinyu Zhang, Wang Ye, Takahiro Emoto, Masatake Akutagawa and Shinsuke Konaka : Adaptive resources allocation algorithm based on modified PSO for cognitive radio system., China Communications, Vol.16, No.5, 83-92, 2019. (Link to Publication Site) ● Publication site (DOI): 10.12676/j.cc.2019.05.007 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85067362909 (DOI: 10.12676/j.cc.2019.05.007, Elsevier: Scopus)
12.	Midori Yoshida, Eiichi Honda, Teruaki Ito, Tetsuo Ichikawa, Masatake Akutagawa, Takahiro Emoto and Yohsuke Kinouchi : 多波長植物専用LED照射装置を用いた完全制御型水耕栽培システム, LED総合フォーラム2019 in 徳島論文集, 131-136, 2019.
13.	Takaaki Shimohata, Kazuaki Mawatari, Takashi Uebanso, Airi Honjo, Akari Tsunedomi, Sho Hatayama, Yuri Sato, Junko Kido, Risa Nishisaka, Ayumi Yoshimoto, Tomoko Yamashita, Sachie Amano, Miki Maetani-Yasui, Hitomi Iba, Yumi Harada, Mutsumi Nakahashi, Sonoko Yasui-Yamada, Yasuhiro Hamada, Tadahiko Nakagawa, Masahiro Sogabe, Takahiro Emoto, Masatake Akutagawa, Toshiya Okahisa, Yohsuke Kinouchi and Akira Takahashi : Bacterial Contamination of Hemodialysis Devices in Hospital Dialysis Wards., The Journal of Medical Investigation : JMI, Vol.66, No.1.2, 148-152, 2019. (Summary) Chronic care patients undergoing hemodialysis for treatment of end-stage renal failure experience higher rates of bloodstream-associated infection due to the patients' compromised immune system and management of the bloodstream through catheters. Staphylococcus species are acommon cause of hemodialysis catheterrelated bloodstream infections. We investigated environmental bacterial contamination of dialysis wards and contamination of hemodialysis devices to determine the source of bacteria for these infections. All bacterial samples were collected by the swab method and the agarose stamp method. And which bacterium were identified by BBL CRYSTAL Kit or 16s rRNA sequences. In our data, bacterial cell number of hemodialysis device was lower than environment of patient surrounds. But Staphylococcus spp. were found predominantly on the hemodialysis device (46.8%), especially on areas frequently touched by healthcare-workers (such as Touch screen). Among Staphylococcus spp., Staphylococcus epidermidis was most frequently observed (42.1% of Staphylococcus spp.), and more surprising, 48.2% of the Staphylococcus spp. indicated high resistance for methicillin. Our finding suggests that hemodialysis device highly contaminated with bloodstream infection associated bacteria. This study can be used as a source to assess the risk of contamination-related infection and to develop the cleaning system for the better prevention for bloodstream infections in patients with hemodialysis. J. Med. Invest. 66 : 148-152, February, 2019. (Tokushima University Institutional Repository) ● Metadata: 113411 (Link to Publication Site) ● Publication site (DOI): 10.2152/jmi.66.148 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 31064928 ● Search Scopus @ Elsevier (PMID): 31064928 ● Search Scopus @ Elsevier (DOI): 10.2152/jmi.66.148 (Tokushima University Institutional Repository: 113411, DOI: 10.2152/jmi.66.148, PubMed: 31064928)
14.	Masatake Akutagawa, Takahiro Emoto, Tetsuro Tokitani and Yohsuke Kinouchi : A computer simulation of the metallic artifacts in MRI caused by dental magnetic attachments, Biomedical Physics & Engineering Express, Vol.4, No.3, 2018. (Summary) Dental magnetic attachments, which are relatively simple to use and provide good retention and stability, have been increasingly used as dental prostheses. These attachments are composed of ferromagnetic stainless-steel keepers and magnetic assemblies embedded in the denture. The use of magnetic resonance imaging (MRI) to investigate lesions in the oral and maxillofacial areas is quite common. When a patient with a magnetic keeper undergoes MRI examination of the oral or maxillofacial area, however, the keeper is considered a metallic artifact (MA). Depending on the location of the lesion requiring diagnosis, the patient may be required to remove the keeper. The extent of the MA is known to be related to the hardware and pulse sequence parameters and the magnetic properties of the keeper. In this study, we propose a new method to estimate the extent of the MA in MR images caused by a keeper placed in the MRI, approximating the keeper with a magnetic dipole. This method should allow us to express the relationship among the hardware and pulse sequence parameters, the magnetic properties of the keeper and the extent of the MA in the MR image. To evaluate the validity of the method, we compare the MA in MR images produced by the proposed method with those in any experimental MR images taken in the existing study. Via our computer simulations, we show that the proposed method outperformed the existing approach and can estimate the extent of the MA based on the hardware and pulse sequence parameters and the magnetic properties of the keeper. By estimating the extent of the MA in the MR image by using our method before the MRI examination, depending on the location of the lesion requiring diagnosis, it may not be necessary to remove the keeper. (Link to Publication Site) ● Publication site (DOI): 10.1088/2057-1976/aab646 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85047264224 (DOI: 10.1088/2057-1976/aab646, Elsevier: Scopus)
15.	Takahiro Emoto, Udantha R. Abeyratne, Kenichiro Kawano, Takuya Okada, Osamu Jinnouchi and Ikuji Kawata : Detection of sleep breathing sound based on artificial neural network analysis, Biomedical Signal Processing and Control, Vol.41, 81-89, 2018. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.bspc.2017.11.005 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85034836030 (DOI: 10.1016/j.bspc.2017.11.005, Elsevier: Scopus)
16.	Ryunosuke Sato, Takahiro Emoto, Yuki Gojima and Masatake Akutagawa : Automatic Bowel Motility Evaluation Technique for Noncontact Sound Recordings, Applied Sciences, Vol.8, No.6, 2076-3417, 2018. (Tokushima University Institutional Repository) ● Metadata: 114993 (Link to Publication Site) ● Publication site (DOI): 10.3390/app8060999 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.3390/app8060999 (Tokushima University Institutional Repository: 114993, DOI: 10.3390/app8060999)
17.	Fumika Oi, Tadahiko Nakagawa, Koichi Okamoto, Tetsuji Takayama, Masahiro Sogabe, Toshiya Okahisa, Masatake Akutagawa, Takahiro Emoto and Yohsuke Kinouchi : LED光を用いた対外循環照射モデルの構築., 電子情報通信学会研究技術報告(MEとバイオサイバネティックス), Vol.117, No.165, 17-20, 2017. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009408978527360 (CiNii: 1520009408978527360)
18.	Malik Ahmed Sameen, Swee Tian Tan, Malek Ahmad Nizam Nik Nik, Kadir Rafiq Abdul Mohammed, Takahiro Emoto, Masatake Akutagawa, Meng Kah Leong, Hou Jia Tan and Alang Ahmad Iskandar Tengku Tengku : Comparison of standard light-emitting diode (LED) and 385 nm ultraviolet A LED (UVA-LED) for disinfection of Escherichia coli, Malaysian Journal of Fundamental and Applied Sciences, Vol.13, No.(4-2), 430-437, 2017. (Link to Publication Site) ● Publication site (DOI): 10.11113/mjfas.v13n4-2.758 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.11113/mjfas.v13n4-2.758 (DOI: 10.11113/mjfas.v13n4-2.758)
19.	Takahiro Emoto, Udantha R. Abeyratne, Yuki Gojima, Kazuki Nanba, Masahiro Sogabe, Toshiya Okahisa, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : Evaluation of human bowel motility using non-contact microphones, Biomedical Physics & Engineering Express, Vol.2, No.4, 1-8, 2016. (Link to Publication Site) ● Publication site (DOI): 10.1088/2057-1976/2/4/045012 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1088/2057-1976/2/4/045012 (DOI: 10.1088/2057-1976/2/4/045012)
20.	Ryo Nonaka, Takahiro Emoto, Udantha R. Abeyratne, Osamu Jinnouchi, Ikuji Kawata, Hiroki Ohnishi, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : Automatic snore sound extraction from sleep sound recordings via auditory image modeling, Biomedical Signal Processing and Control, Vol.27, 7-14, 2016. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.bspc.2015.12.009 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84957091070 (DOI: 10.1016/j.bspc.2015.12.009, Elsevier: Scopus)
21.	Yanfei Hou, Mutsumi Nakahashi, Kazuaki Mawatari, Takaaki Shimohata, Takashi Uebanso, Yumi Harada, Akari Tsunedomi, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi and Akira Takahashi : Combined treatment of UVA irradiation and antibiotics induces greater bactericidal effects on Vibrio parahaemolyticus., The Journal of Medical Investigation : JMI, Vol.63, No.1-2, 63-67, 2016. (Summary) The presence of antibiotics in the environment and their subsequent impact on the development of multi-antibiotic resistant bacteria has raised concerns globally. Consequently, much research is focused on a method to produce a better disinfectant. We have established a disinfectant system using UVA-LED that inactivates pathogenic bacteria. We assessed the bactericidal efficiency of a combination of UVA-LED and antibiotics against Vibrio parahaemolyticus. Combined use of antibiotic drugs and UVA irradiation was more bactericidal than UVA irradiation or antibacterial drugs alone. The bactericidal synergy was observed at low concentrations of each drug that are normally unable to kill the bacteria. This combination has the potential to become a sterilization technology. J. Med. Invest. 63: 63-67, February, 2016. (Tokushima University Institutional Repository) ● Metadata: 111155 (Link to Publication Site) ● Publication site (DOI): 10.2152/jmi.63.63 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 27040055 ● Search Scopus @ Elsevier (PMID): 27040055 ● Search Scopus @ Elsevier (DOI): 10.2152/jmi.63.63 (Tokushima University Institutional Repository: 111155, DOI: 10.2152/jmi.63.63, PubMed: 27040055)
22.	Hamdon Zulaika, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi, Rahman A Rasyada and Azran Azhim : The Real-Time Monitoring System of Blood Flow Velocity Using Doppler Ultrasound for Healthcare Application, Journal of Signal Processing, Vol.19, No.4, 175-178, 2015. (Summary) Doppler ultrasound is a widely used and reliable noninvasive device for blood flow waveform measurement. However, the commercialized blood flow devices are usually in hospital with limited access for public, required monitoring by competent staff and not easily transported. The aim of current study is to examine the potential of a portable blood flow velocity (BFV) Doppler ultrasound system for healthcare application. The effects of visceral fat (VF) level, blood pressure (BP) level (hypertension), aging, regular exercise and exercise-trained programme toward blood flow waveforms and its indices are determined. The peak systolic (S1) velocity and resistive index (RI) are significantly higher (p<0.05) in older population who exercise regularly than who does not. There are significant differences (p<0.05) in the RI and velocity reflection index between normotensive and hypertensive groups. The S1 and peak diastolic (D) are decreased significantly (p<0.05) from normotensive to hypertension groups. Low VF group has significantly increase vascular elasticity than high VF group. In contrast, low VF group has decrese reflected wave velocity. Our findings have broad implication in prevention and monitoring of cardio-related healthproblem that possibly early detection by frequent measurement of BFV, BP and electrocardiogram using this portable device. (Link to Publication Site) ● Publication site (DOI): 10.2299/jsp.19.175 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204463390080 ● Search Scopus @ Elsevier (DOI): 10.2299/jsp.19.175 (DOI: 10.2299/jsp.19.175, CiNii: 1390001204463390080)
23.	Takahiro Emoto, Masato Kashihara, Udantha R. Abeyratne, Osamu Jinnouchi, Ikuji Kawata, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : Signal shape feature for automatic snore and breathing sounds classification, Physiological Measurement, Vol.35, No.12, 2489-2499, 2014. (Summary) In this study we focus on this problem and propose an automated method to classify snore and breathing sounds based on the novel feature, 'positive/negative amplitude ratio (PNAR)', to measure the shape of the sound signal. The performance of the proposed method was evaluated using snore and breathing recordings (snore: 22 643 episodes and breathing: 4664 episodes) from 40 subjects. Receiver operating characteristic (ROC) analysis showed that the proposed method achieved 0.923 sensitivity with 0.918 specificity for snore and breathing sound classification on test data. PNAR has substantial potential as a feature in the front end of a non-contact snore/breathing-based technology for sleep studies. (Link to Publication Site) ● Publication site (DOI): 10.1088/0967-3334/35/12/2489 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 25402486 ● Search Scopus @ Elsevier (PMID): 25402486 ● Search Scopus @ Elsevier (DOI): 10.1088/0967-3334/35/12/2489 (DOI: 10.1088/0967-3334/35/12/2489, PubMed: 25402486)
24.	Yoshinori Nitta, Masatake Akutagawa, Takahiro Emoto, Toshiya Okahisa, Hiroshi Miyamoto, Yoshiaki Ohnishi, Yohsuke Kinouchi and S. Abhijit PANDYA : 体外循環療法中に腎臓で行われる水分の再吸収効率の推定, 医工学治療, Vol.26, No.1, 24-31, 2014.
25.	Motoshi Masuda, Takahiro Emoto, Asato Suzuki, Masatake Akutagawa, Tomoki Kitawaki, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Shigeru Obara, Kazuo Yoshizaki, Shinsuke Konaka and Yohsuke Kinouchi : Evaluation of blood flow velocity waveform in common carotid artery using multi-branched arterial segment model of human arteries, Biomedical Signal Processing and Control, Vol.8, No.6, 509-519, 2013. (Summary) Arteriosclerosis is considered to be a major cause of cardiovascular diseases, which account for approximately 30% of the causes of death in the world. We have recently demonstrated a strong correlation between arteriosclerosis (arterial elasticity) and two characteristics: maximum systolic velocity (S1) and systolic second peak velocity (S2) of the common carotid artery flow velocity waveform (CCFVW). The CCFVW can be measured by using a small portable measuring device. However, there is currently no theoretical evidence supporting the causes of the relation between CCFVW and arterial elasticity, or the origin of the CCFVW characteristics. In this study, the arterial blood flow was simulated using a one-dimensional systemic arterial segments model of human artery in order to conduct a qualitative evaluation of the relationship between arterial elasticity and the characteristics of CCFVW. The simulation was carried out based on the discretized segments with the physical properties of a viscoelastic tube (the cross-sectional area at the proximal and terminal ends, the length, and the compliance per unit area of the tube (CS)). The findings obtained through this study revealed that the simulated CCFVW had shape similar characteristics to that of the measured CCFVW. Moreover, when the compliance CS of the model was decreased, the first peak of the simulated-CCFVW decreased and the second peak increased. Further, by separating the anterograde pulse wave and the reflected pulse wave, which form the CCFVW, we found that the decrease in the first peak of the simulated CCFVW was due to the arrival of a reflected pulse wave from the head after the common carotid artery toward the arrival of a anterograde pulse wave ejected directly from the heart and that the increase in the second peak resulted from the arrival of the peak of the reflected pulse wave from the thoracic aorta. These results establish that the CCFVW characteristics contribute to the assessment of arterial elasticity. (Keyword) Common carotid / Hemodynamics / Fluid simulation / Artery segments model / Artery elasticity (Link to Publication Site) ● Publication site (DOI): 10.1016/j.bspc.2013.05.005 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84878849060 (DOI: 10.1016/j.bspc.2013.05.005, Elsevier: Scopus)
26.	Takahiro Emoto, Koichi Shono, Udantha R. Abeyratne, Toshiya Okahisa, Hiromi Yano, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : ARMA based spectral bandwidth for evaluation of bowel motility by the analysis of bowel sounds, Physiological Measurement, Vol.34, No.8, 925-936, 2013. (Summary) In this study we propose a novel simple automatic method to detect the bowel sound(BS)s based on the 3 dB bandwidth of the frequency peaks in the autoregressive moving average spectrum. We use the measure, sound-to-sound interval (SSI) obtained by the proposed method, to capture bowel motility. In this paper, we show that the proposed method for automatic detection could achieve a sensitivity of 87.8±5.88%, specificity of 91.7±4.33% and area under the curve of 0.923 when working on 16 healthy volunteers during mosapride administrations. Furthermore, we show that the measured SSI averaged over a period of 30 min can clearly capture bowel motility. Our findings should have the potential to contribute toward developing automated BS-based diagnosis of IBS. (Link to Publication Site) ● Publication site (DOI): 10.1088/0967-3334/34/8/925 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 23893043 ● Search Scopus @ Elsevier (PMID): 23893043 ● Search Scopus @ Elsevier (DOI): 10.1088/0967-3334/34/8/925 (DOI: 10.1088/0967-3334/34/8/925, PubMed: 23893043)
27.	Takahiro Emoto, Udantha R. Abeyratne, Yongjian Chen, Ikuji Kawata, Masatake Akutagawa and Yohsuke Kinouchi : Artificial neural networks for breathing and snoring episode detection in sleep sounds, Physiological Measurement, Vol.33, No.10, 1675-1689, 2012. (Summary) In this paper, we propose a fundamentally novel approach based on artificial neural network (ANN) technology to detect snore and breathing sound episodes(SBE). Working on clinical data, we show that the proposed method can detect SBE at a sensitivity and specificity exceeding 0.892 and 0.874 respectively, even when the signal is completely buried in background noise (SNR < 0 dB). We compare the performance of the proposed technology with those of the existing methods (short-term energy, zero-crossing rates) and illustrate that the proposed method vastly outperforms conventional techniques. (Keyword) Databases, Factual / Humans / Neural Networks (Computer) / ROC Curve / Respiration / Sleep / Sleep Apnea, Obstructive / Snoring / Sound (Link to Publication Site) ● Publication site (DOI): 10.1088/0967-3334/33/10/1675 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 22986469 ● Search Scopus @ Elsevier (PMID): 22986469 ● Search Scopus @ Elsevier (DOI): 10.1088/0967-3334/33/10/1675 (DOI: 10.1088/0967-3334/33/10/1675, PubMed: 22986469)
28.	Takahiro Emoto, Udantha R. Abeyratne, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : High Frequency Region of the Snore Spectra Carry Important Information on the Disease of Sleep Apnea, Journal of Medical Engineering & Technology, Vol.35, No.8, 425-431, 2011. (Summary) The traditional approach over the years has been to record snore sounds at a bandwidth of < 5 kHz. In this paper, we compute the power spectra of snores in three different bands defined as: low-frequency band (LFB: < 5 kHz); middle-frequency band (MFB: 5-10 kHz) and high-frequency band (HFB: 10-20 kHz). We illustrate that there is a significant difference between non-OSA snorers (Apnoea Hypopnoea Index (AHI) < 10) and OSA snorers (AHI > 10) in the region > 5 kHz. We then develop a feature to diagnose obstructive sleep apnoea (OSA) based on the spectral differences in the high frequency region and evaluate its performance on a database of 20 subjects. (Keyword) Acoustics / Airway Obstruction / Case-Control Studies / Humans / Male / Polysomnography / Sleep Apnea, Obstructive / Snoring / Sound (Link to Publication Site) ● Publication site (DOI): 10.3109/03091902.2011.626838 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 22066466 ● Search Scopus @ Elsevier (PMID): 22066466 ● Search Scopus @ Elsevier (DOI): 10.3109/03091902.2011.626838 (DOI: 10.3109/03091902.2011.626838, PubMed: 22066466)
29.	Takahiro Emoto, Udantha R. Abeyratne, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : Testing the system non-linearity in snoring sound via neural networks, International Journal of Medical Engineering and Informatics, Vol.3, No.3, 299-310, 2011. (Summary) Snoring has been analyzed for the clinical diagnosis of obstructive sleep apnea(OSA). Snores are likely to have diagnostically relevant non-linearities that cannot be captured by linear techniques. In this paper, we investigate the non-linearity of snores and develop a novel measure, as a possible characterisation index. The method is based on artificial neural networks (NN). The developed method was tested on a database of 27 subjects. (Link to Publication Site) ● Publication site (DOI): 10.1504/IJMEI.2011.042875 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1504/IJMEI.2011.042875 (DOI: 10.1504/IJMEI.2011.042875)
30.	Yongjian Chen, Masatake Akutagawa, Takahiro Emoto and Yohsuke Kinouchi : The removal of EMG in EEG by neural networks, Physiological Measurement, Vol.31, 1567-1584, 2010. (Summary) In this paper, it is presented that electromyography (EMG) is a shot noise based on the generation of EMG. A novel filter is proposed by applying a neural network (NN) ensemble where the noisy input signal and the desired one are the same in a learning process. Both incremental and batch mode are applied in the learning process of NNs that is better than generalized NN filters. This NN ensemble filter not only reduces additive and multiplicative white noise inside signals, but also preserves the signals' characteristics. In clinical EEG and EMG signals processing, the filter is capable of reducing EMG in the clinical EEG, and it is proved that there is randomness in EMG. (Keyword) Algorithms / Artifacts / Electroencephalography / Electromyography / Humans / Male / Neural Networks (Computer) / Young Adult (Link to Publication Site) ● Publication site (DOI): 10.1088/0967-3334/31/12/002 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 20980716 ● Search Scopus @ Elsevier (PMID): 20980716 ● Search Scopus @ Elsevier (DOI): 10.1088/0967-3334/31/12/002 (DOI: 10.1088/0967-3334/31/12/002, PubMed: 20980716)
31.	Takahiro Emoto, Udantha R. Abeyratne, Tetsuya Kusumoto, Masatake Akutagawa, Eiji Kondo, Ikuji Kawada, Takahiro Azuma, Shinsuke Konaka and Yohsuke Kinouchi : Discriminating apneic snorers and benign snorers based on snoring formant extracted via a noise-robust linear prediction technique, Transactions of the Japanese Society for Medical and Biological Engineering, Vol.48, No.1, 115-121, 2010. (Summary) Snoring is the earliest and the most common symptom of Obstructive Sleep Apnea (OSA) . Quantitative analysis of snoring, however, is not used at present in the clinical diagnosis of the disease. Several researchers have reported differences in the formant frequencies of Apneic and benign snoring sounds (SS) based on linear prediction coding (LPC) analysis. However, SS is complex signal and at local low signal to noise ratio (SNR) . This signal complexity should reduce the accuracy of formant estimation. In this paper, we propose a novel approach to the diagnosis of OSA based on the formants of SSs, extracted via a noise-robust linear prediction technique. The proposed method and existing LPC-based method are compared via a measure, ς which indicates the standard deviation of first formant frequencies. The performance of the proposed method was evaluated on a database of clinical snoring sounds recorded overnight in the laboratory of a hospital sleep diagnostic center. Compared with existing LPC-based method, we show that the proposed method can differentiate (sensitivity: 88.9%, specificity: 88.9%, AUC: 0.85) between benign snoring (Apnea Hypopnea Index, AHI=6.0±3.2 event/h; 6188 episodes) and apneic snoring (AHI=40.7±20.2 event/h; 14066 episodes) . (Keyword) snoring sound / obstructive sleep apnea / first formant / noise-robust linear prediction technique (Link to Publication Site) ● Publication site (DOI): 10.11239/jsmbe.48.115 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205267650304 ● Summary page in Scopus @ Elsevier: 2-s2.0-78649848911 (DOI: 10.11239/jsmbe.48.115, CiNii: 1390001205267650304, Elsevier: Scopus)
32.	Takahiro Emoto, Udantha R. Abeyratne, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : Linear neural networks for spectral envelope estimation, IEICE Electronics Express, Vol.7, No.10, 691-696, 2010. (Summary) The spectral envelope is mainly determined by the shape of vocal tract and it is generally represented by linear estimation methods such as an autoregressive (AR) modeling. Neural network (NN) is general tools for modeling nonlinear function. Nonlinear aspects of NN have been emphasized. However, in this study, a novel approach to spectral estimation, which is based on the use of a linear feed-forward NN is discussed. Example of the linear network for estimating the spectral envelope of vowel sound is presented. The proposed linear NN technique leads to interesting new paradigms which could not have been considered in advance. (Keyword) linear neural network / spectral envelope / vowel sound (Link to Publication Site) ● Publication site (DOI): 10.1587/elex.7.691 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205214772608 ● Search Scopus @ Elsevier (DOI): 10.1587/elex.7.691 (DOI: 10.1587/elex.7.691, CiNii: 1390001205214772608)
33.	Takahiro Emoto, Masatake Akutagawa, Udantha R. Abeyratne, Hirofumi Nagashino and Yohsuke Kinouchi : Tracking the states of a nonlinear and nonstationary system in the weight-space of artificial neural networks, Medical and Biological Engineering and Computing, Vol.44, No.1-2, 146-159, 2006. (Summary) The new proposed method uses the connection-weight-space (CWS) of the neural network(NN) to extract information about the signal generator mechanism. We define a novel feature to measure the separation of two arbitrary states in the CWS and use it to track the state changes of the generating system. The performance of the method is examined via synthetic signals and clinical EEG. Synthetic data indicates that the feature can track the system down to a SNR of 3.5 dB. Clinical data obtained from three patients undergoing carotid endarterectomy of the brain showed that EEG could be modeled by the proposed method, and the blood perfusion state of the brain could be monitored via feature, with small NNs. (Link to Publication Site) ● Publication site (DOI): 10.1007/s11517-005-0019-8 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s11517-005-0019-8 (DOI: 10.1007/s11517-005-0019-8)

Academic Paper (Unrefereed Paper):

1.	Eiichi Honda, Teruaki Ito, Yohsuke Kinouchi, Tetsuo Ichikawa, Masatake Akutagawa, Takahiro Emoto and Midori Yoshida : 一般照明および植物育成照明に応用できる新しいLED照明方法の開発, LED総合フォーラム2018 in 徳島論文集, 111-112, 2018.
2.	Toshiaki Yoshimoto, Yuji Morine, Chie Takasu, Rui Feng, Tetsuya Ikemoto, Kouzou Yoshikawa, Shuichi Iwahashi, Yu Saitou, Hideya Kashihara, Masatake Akutagawa, Takahiro Emoto, Yosuke Kinouchi and Mitsuo Shimada : Blue light-emitting diodes induce autophagy in colon cancer cells by Opsin 3., Annals of Gastroenterological Surgery, Vol.2, No.2, 154-161, 2018. (Summary) Light emitting-diodes (LED) have various effects on living organisms and recent studies have shown the efficacy of visible light irradiation from LED for anticancer therapies. However, the mechanism of LED's effects on cancer cells remains unclear. The aim of the present study was to investigate the effects of LED on colon cancer cell lines and the role of photoreceptor Opsin 3 (Opn3) on LED irradiation in vitro. Human colon cancer cells (HT-29 or HCT-116) were seeded onto laboratory dishes and irradiated with 465-nm LED at 30 mW/cm for 30 minutes. Cell Counting Kit-8 was used to measure cell viability, and apoptosis and caspase 3/8 expression were evaluated by AnnexinV/PI and reverse transcription-polymerase chain reaction (RT-PCR), respectively. Autophagy and expression of LC-3 and beclin-1 were also evaluated by autophagy assays, RT-PCR and Western blotting. We further tested Opn3 knockdown by Opn3 siRNA and the G G-protein inhibitor NF023 in these assays. Viability of HT-29 and HCT-116 cells was lower in 465-nm LED-irradiated cultures than in control cultures. LC-3 and beclin-1 expressions were significantly higher in LED-irradiated cultures, and autophagosomes were detected in irradiated cells. The reductive effect of cancer cell viability following blue LED irradiation was reversed by Opn3 knockdown or NF023 treatment. Furthermore, increased LC-3 and beclin-1 expression that resulted from blue LED irradiation was suppressed by Opn3 knockdown or NF023 treatment. Blue LED irradiation suppressed the growth of colon cancer cells and Opn3 may play an important role as a photoreceptor. (Tokushima University Institutional Repository) ● Metadata: 113689 (Link to Publication Site) ● Publication site (DOI): 10.1002/ags3.12055 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 29863164 ● Search Scopus @ Elsevier (PMID): 29863164 ● Search Scopus @ Elsevier (DOI): 10.1002/ags3.12055 (Tokushima University Institutional Repository: 113689, DOI: 10.1002/ags3.12055, PubMed: 29863164)
3.	Noriko Matsumoto, Kouzou Yoshikawa, Mitsuo Shimada, Nobuhiro Kurita, Horohiko Sato, Takashi Iwata, Jun Higashijima, Motoya Chikakiyo, Masaaki Nishi, Hideya Kashihara, Chie Takasu, Shohei Eto, Akira Takahashi, Masatake Akutagawa and Takahiro Emoto : Effect of light irradiation by light emitting diode on colon cancer cells., Anticancer Research, Vol.34, No.9, 4709-4716, 2014. (Summary) Recent studies have demonstrated the efficacy of irradiation from light emitting diodes (LED) for wound healing, anti-inflammation and anticancer therapies. However, little is known about the effects of visible light in colon cancer cells. The purpose of this study was to evaluate the biological response (including gene expression changes) of human colon cancer cells to different wavelengths of LED irradiation. Human colon cancer cells (HT29 or HCT116) were seeded onto laboratory dishes that were then put on LED irradiation equipment with a 465 nm-, 525 nm-, or 635 nm-LED. Irradiation at 15 or 30 mW was performed 10 min/day, each day for 5 days. The cell counting kit8 was then used to measure cell viability. Apoptosis and expression of several mRNAs (caspase, MAPK and autophagy pathway) in HT29 cultures irradiated with 465 nm LED were evaluated via AnnexinV/PI and RT-PCR, respectively. Viability of HT29 and HCT116 cells was lower in 465 nm-LED irradiated cultures than in control cultures, but viability of HT29 cells did not differ between control cultures and 525 nm-LED or 635 nm-LED irradiated cultures. Moreover, the expression of FAS, caspase-3, capase-8, and JUK were significantly higher in 465 nm-LED irradiated cultures than in control cultures, and expression of ERK1/2 and LC3 was lower in blue-irradiated cells. LED irradiation at 465 nm inhibited the proliferation of HT29 cells and of HCT116 cells. Notably, LED irradiation at 465 nm promoted apoptosis inHT29 cultures via the extrinsic apoptosis pathway and the MAPK pathway. (Keyword) apoptosis / Cell Cycle Checkpoints / Cell Line, Tumor / Cell Proliferation / Cell Survival / Colonic Neoplasms / Dose-Response Relationship, Radiation / Gene Expression Regulation, Neoplastic / HCT116 Cells / HT29 Cells / Humans / Lasers, Semiconductor / Light / Mitogen-Activated Protein Kinases / signal transduction (Tokushima University Institutional Repository) ● Metadata: 109346 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 25202048 ● Summary page in Scopus @ Elsevier: 2-s2.0-84908691381 (Tokushima University Institutional Repository: 109346, PubMed: 25202048, Elsevier: Scopus)

Academic Letter:

1.	Yoshitaka Suzuki, 後藤祐美, KIMURA Satoru, Takahiro Emoto, 仲座海希, 船岡俊介, 内ケ崎一徹, 有安雄一, 髙橋優太朗 and Yoshizo Matsuka : 部位特異性の顎口腔領域の音を視る, The Journal of Japanese Society of Stomatognathic Function, Vol.30, No.2, 132-135, 2024.
2.	Yang Yi, Shinsuke Konaka, Masatake Akutagawa, Takahiro Emoto and Qinyu Zhang : Cognitive Engine Design for Cognitive Radio in LTE-Advanced Communication Frame Based on Modified Particle Swarm Optimization, ICIC Express Letters, Vol.8, No.3, 843-850, 2014. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84893189824 (Elsevier: Scopus)

Proceeding of International Conference:

1.	MATSUOKA Atsushi, Masatake Akutagawa, Hiromichi Yumoto, Minato Akizuki, Takahiro Emoto, Hiroo Tarao, Tosihiko Tominaga, Eiichiro Tada, Toshitaka Ikehara, Emiko Yasuno and Yohsuke Kinouchi : Non-thermal electro-sterilization of Streptococcus mutans from temperature-time product point of view, The 3rd Annual Conference of BioEM (BioEM 2024), Crete, Jun. 2024.
2.	Rika Saito, Masatake Akutagawa, Hiromichi Yumoto, Kouji Hirao, Takahiro Emoto, Hiroo Tarao, Toshihiko Tominaga, Toshitaka Ikehara, Emiko Yasuno and Yohsuke Kinouchi : Relationship between current density and osteogenesis-promoting effect of osteoblasts, THE 2nd Annual Conference of BioEM (BioEM 2023), Oxford, United Kingdom, Jun. 2023.
3.	Yusuke Kuroda, Masatake Akutagawa, Takahiro Emoto, Hiromichi Yumoto, Hiroo Tarao, Toshihiko Tominaga, Toshitaka Ikehara, Emiko Yasuno and Yohsuke Kinouchi : A study of Coupled Thermal-Electrical Analysis for Lattice Network Model, THE 2nd Annual Conference of BioEM (BioEM 2023), Oxford, United Kingdom, Jun. 2023.
4.	Yusuke Kuroda, Masatake Akutagawa, Takahiro Emoto, Hiroo Tarao, Hiromichi Yumoto, Kouji Hirao, Tominaga Toshihiko, Toshitaka Ikehara, Emiko Yasuno and Yohsuke Kinouchi : A study of electrode arrangement for electromagnetic wave therapy of periapical periodontitis using electro-thermal coupled analysis, The 1st Annual Meeting of BioEM (BioEM 2022), Nagoya, Jun. 2022.
5.	Rika Saito, Masatake Akutagawa, Hiromichi Yumoto, Kouji Hirao, Takahiro Emoto, Hiroo Tarao, Tominaga Toshihiko, Toshitaka Ikehara, Emiko Yasuno and Yohsuke Kinouchi : Effect of 500 kHz electric current application on osteoblastic bone regeneration, The 1st Annual Meeting of BioEM (BioEM 2022), Nagoya, Jun. 2022.
6.	Futa Okido, Masatake Akutagawa, Hiromichi Yumoto, Takahiro Emoto, Hiroo Tarao, Toshihiko Tominaga, Kouji Hirao, Toshitaka Ikehara, Emiko Yasuno and Yohsuke Kinouchi : Basic study on non-thermal effects in electro-sterilization using 500kHz burst current for Streptococcus mutans, The Joint Annual Meeting of The Bioelectromagnetics Society and the European BioElectromagnetics Association (BioEM 2021), Ghent, Sep. 2021.
7.	Toshitaka Ikehara, Mutsumi Nakahashi, Takahiro Emoto, Masatake Akutagawa, Koichiro Tsuchiya, Akira Takahashi and Yohsuke Kinouchi : Effects of reactive oxygen species induced by 405 nm light irradiation on Hela S3 cells, The Joint Annual Meeting of the Bioelectromagnetics Society and the European BioElectromagnetics Association, Montpellier, Jun. 2019.
8.	Taketani Hideo, Masatake Akutagawa, Hiromichi Yumoto, Kouji Hirao, Takahiro Emoto, Tarao Hiroo, Tominaga Toshihiko, Toshitaka Ikehara and Yohsuke Kinouchi : Experimental model simulation on electromagnetic wave therapy of apical periodontitis, The Joint Annual Meeting of The Bioelectromagnetics Society and The European BioElectromagnetics Association (BioEM 2019) (Montpellier, France), Jun. 2019.
9.	Takayuki Tominaga, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi, Kazuyoshi Kitaoka and Hiroyuki Tanaka : A search method of optimal probe position during measurement of carotid artery blood flow velocity using the ultrasonic doppler, IEEE-EMBS Conference on Biomedical Engineering and Science (IECBES 2018), 302-307, Kuching, Dec. 2018. (Link to Publication Site) ● Publication site (DOI): 10.1109/IECBES.2018.8626707 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85062785689 (DOI: 10.1109/IECBES.2018.8626707, Elsevier: Scopus)
10.	Kensuke Omura, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi, Fumio Shichijo, Kazuhiko Furukawa and Yoshio Kaji : Synchronization analysis of EEG during name recognition using Hilbert Huang Coherence, IEEE-EMBS Conference on Biomedical Engineering and Science (IECBES 2018), 308-313, Kuching, Dec. 2018. (Summary) The synchronization of EEG signals from different region of the brain are related to human higher- order activity such as self-cognition, pattern recognition and working memory. In this study, Hilbert- Huang coherence(HHC) that can achieve both high frequency resolution and high time resolution was proposed to analyze the synchronization of EEG. Furthermore, we presented three types of visual stimuli (subject's own name, famous name and figure) to three subjects and applied HHC toEEG for each stimulus. In the result of this study, it confirmed that the amplitude of N100 for name stimuli was larger than that of N100 for figure stimuli. the amplitude of P200 for subject's own name was larger than that for famous name. In addition, in the midline electrodes, it confirmed by HHC that the synchronization of EEG around 10 Hz for name stimuli was higher than that for figure stimuli in the range of 0.0 to 0.2 s from stimuli onset. (Link to Publication Site) ● Publication site (DOI): 10.1109/IECBES.2018.08626734 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85062801040 (DOI: 10.1109/IECBES.2018.08626734, Elsevier: Scopus)
11.	Yi Yang, Qinyu Zhang, Ye Wang, Takahiro Emoto and Masatake Akutagawa : A Spectrum Sensing and Congestion Control Strategy for Distributed Cognitive Radio System., International Conference in Communications, Signal Processing, and Systems CSPS 2018: Communications, Signal Processing, and Systems, 1105-1112, Jul. 2018. (Link to Publication Site) ● Publication site (DOI): 10.1007/978-981-13-6264-4_130 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85066035643 (DOI: 10.1007/978-981-13-6264-4_130, Elsevier: Scopus)
12.	Shunsuke Yamaguchi, Masatake Akutagawa, Hiromichi Yumoto, Kouji Hirao, Takahiro Emoto, Hiroo Tarao, Toshihiko Tominaga, Toshitaka Ikehara and Yohsuke Kinouchi : Effect of high frequency electric field on growth factor of cultured osteoblasts, 2018 The Joint Annual Meeting of the Bioelectromagnetics Society and the European BioElectromagnetics Association, Piran, Jun. 2018. (Summary) In this experiment, high frequency AC voltage was applied to cultured osteoblasts. The voltage waveform used is a sinusoidal wave of 500 kHz 20 V. Temperature, voltage, osteoblastic VEGF, VEGFmRNA and ALP were measured. VEGF and VEGFmRNA were measured 1 day after voltage application and ALP was measured 7 days after. Durations of voltage application were 30, 60, 90 and 120 s. As results of them, it is obvious that it affects the osteogenesis of osteoblasts by electrical factors. Although it depends on the initial state (cycle) of the cells, VEGF was significantly increased at 90 seconds and VEGF mRNA at 120 seconds. Change of ALP by application of the electrical field was not observed in our experiments.
13.	Toshiya Okahisa, Masahiro Sogabe, Mayu Uyama, Tadahiko Nakagawa, Tetsu Tomonari, Tatsuya Taniguchi, Koichi Okamoto, Tetsuji Takayama, Takaaki Shimohata, Takashi Uebanso, Kazuaki Mawatari, Akira Takahashi, Takahiro Emoto, Masatake Akutagawa, M Yamada and M Fukuhara : Development Of A Multi-Ring Type Roller Pump Unit Equipped To A Compact And Convenient Ascites Purification Machine For Cell-Free And Concentrated Ascites Reinfusion Therapy (CART)., ASAIO 64th Annual Conference, Washington, D.C., Jun. 2018.
14.	Hiroaki Shuu, Masatake Akutagawa, Hiromichi Yumoto, Takahiro Emoto, Toshihiko Tominaga, Kouji Hirao, Hiroo Tarao, Toshitaka Ikehara and Yohsuke Kinouchi : Fundamental study on the mechanism of electromagnetic wave therapy of periapical periodontitis, 2017 The Joint Annual Meeting of The Bioelectromagnetics Society (BEMS) and the European BioElectromagnetics Association (EBEA) (Hangzhou, China), Jun. 2017.
15.	Hiroo Tarao, Masatake Akutagawa, Takahiro Emoto, Hiromichi Yumoto, Toshihiko Tominaga, Takashi Matsumoto, Toshitaka Ikehara and Yohsuke Kinouchi : Calculation of current densities inside dentin by applying 500-kHz current, 2017 The Joint Annual Meeting of The Bioelectromagnetics Society (BEMS) and the European BioElectromagnetics Association (EBEA) (Hangzhou, China), Jun. 2017.
16.	Shimpachi Matsunaga, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi, Shinsuke Konaka, Kazuhiko Furukawa, Yoshio Kaji and Fumio Shichijo : EEG source localization using eccentric electrode arrangement and sLORATA, Abstracts book of the 16th International Conference on Biomedical Engineering, 129, Singapore, Dec. 2016.
17.	Hiroki Nishiwaki, Takuya Ishimoto, Masatake Akutagawa, Takahiro Emoto, Emiko Yasuno, Akira Tangoku, Shinsuke Konaka and Yohsuke Kinouchi : Development of bioelectrical impedance measurement device for discrimination of the mammary tumor using switching circuit, Abstracts book of the 16th International Conference on Biomedical Engineering, 124, Singapore, Dec. 2016.
18.	Junya Asano, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi, Shinsuke Konaka, Fumio Shichijo, Yoshio Kaji, Kazuhiko Furukawa and Tetsuo Ichikawa : Automated repetitive saliva swallowing test using magnetic sensors, Abstracts book of the 16th International Conference on Biomedical Engineering, 124, Singapore, Dec. 2016.
19.	Tarao Hiroo, Hiromichi Yumoto, Toshihiko Tominaga, Masatake Akutagawa, Takahiro Emoto, Toshitaka Ikehara and Yohsuke Kinouchi : Current Distribution around Lesions due to Apical Periodontitis by Applying 500-kHz Current Across Electrodes, 2016 The Joint Annual Meeting of The Bioelectromagnetics and the European BioElectromagnetics Association (Ghent, Belgium), Jun. 2016.
20.	Takahiro Emoto, Udantha R. Abeyratne, Takeshi Shono, Ryo Nonaka, Osamu Jinnouchi, Ikuji Kawata, Masatake Akutagawa and Yohsuke Kinouchi : AUDITORY IMAGE MODEL FOR THE CHARACTERISATION OF OBSTRUCTIVE SLEEP APNOEA, Proceedings of the 12th IASTED International Conference on biomedical engineering(biomed 2016), 145-148, Austria, Feb. 2016. (Link to Publication Site) ● Publication site (DOI): 10.2316/P.2016.832-031 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85015398063 (DOI: 10.2316/P.2016.832-031, Elsevier: Scopus)
21.	Takeshi Shono, Takahiro Emoto, Udantha R. Abeyratne, Masatake Akutagawa and Yohsuke Kinouchi : A HUMAN ABSOLUTE PITCH MODEL FOR IDENTIFYING MUSICAL PITCH, Proceedings of the 12th IASTED International Conference on biomedical engineering(biomed 2016), 60-63, Austria, Feb. 2016. (Link to Publication Site) ● Publication site (DOI): 10.2316/P.2016.832-050 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85015370643 (DOI: 10.2316/P.2016.832-050, Elsevier: Scopus)
22.	Eiji Kondo, Masatake Akutagawa, Takahiro Emoto, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : Syncronization analysis of EEG using the Hilbert Huang Coherence, International Conference on Biomedical and Health Informatics (ICBHI 2015), 19, Haikou, Oct. 2015.
23.	Mazenan Nizam Mohd, Tan Swee Tian, Soh Samson Sarah, Azmi Azhim Noor Azran, Hirofumi Nagashino, Masatake Akutagawa, Takahiro Emoto, Izamshah Raja, Kasim Shahir Mohd and Teruaki Ito : Malay Corpus Design for Articulation Disorder Patient for Early Screening Diagnosis, Proceedings of International Design and Concurrent Engineering Conference 2015 (iDECON2015), No.51, 1-11, Tokushima, Sep. 2015.
24.	Tadahiko Nakagawa, Yoshifumi Takaoka, Hironori Tanaka, Kumiko Tanaka, Tetsuji Takayama, Takaaki Shimohata, Takashi Uebanso, Kazuaki Mawatari, Akira Takahashi, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi, Toru Murashima, Satoru Yamaji, Zenji Tanaka, Masahiro Sogabe and Toshiya Okahisa : Roller Pump Circulation System For Preventing Filter Clogging During Cell-free and Concentrated Ascites Reinfusion Therapy (cart)., The 61th Annual Conference of American Society for Artificial Internal Organs(ASAIO), Chicago, Jun. 2015.
25.	Teruaki Ito, Eiichi Honda, Tetsuo Ichikawa, Yohsuke Kinouchi, Masatake Akutagawa, Takahiro Emoto and Midori Yoshida : 1/F noise-fluctuated cozy lighting system for concentration improvement, Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, No.34335, 1-10, Buffalo, Aug. 2014. (Summary) The power spectrum of human heart rate measured over 24 h exhibits "power-law" 1/f alpha-type spectral behavior with alpha approximately 1. This may be one of the reasons why 1/f noise help people make relaxed, or feel comfortable. As a result, people feel relaxed by looking at a candle light, listening to the sound of ocean wave, or feeling the breezing wind because all of these natural phenomenon is based on the 1/f noise fluctuation. Considering this feature, a technical approach of 1/f noise fluctuation has been applied to various industry products, ranging from light illumination, fan control, temperature control, etc. to implement cozy products. For example, one typical example would be a lighting product mimicking a candle light, which illuminate just like a true candle. A candle light provides a cozy atmosphere to relax our mind by forgetting severe business issues, which is because of the nature of 1/f noise fluctuation as mentioned above. However, it is not suitable to do something important by concentration under a candle light because of the changes of brightness and the blinking nature of candles. This study designs and develops 1/f noise-fluctuated cozy lighting system with stable brightness and chromaticity without blinking so that people unconsciously feel relaxed under this lighting system without noticing the 1/f noise fluctuation and concentrate on work or operation. In order to implement this lighting system, combination of two types of white LED lights were used. White LED lights are manufactured by the combination of different colors having different spectrum. For example, Blue with YAG fluorophore, Blue with RG fluorophore, UV with RGB fluorophore, etc. provide all white LED lights. This means that it is possible to make two different types of LED lights which have the same white color with different combination of spectrums. If the two white colors of the two LED are the same, nobody cannot notice when the two LEDs are switching over each other, periodically or randomly. People only think that the white color is constantly provided by the white LED light. However, if the switching is based on 1/f noise fluctuation, some positive effect can be expected under this lighting system. This paper shows the overview of the idea of 1/f noise-fluctuated cozy lighting system, and then presents the two basic challenges of the idea towards concentration improvement; Combination of two types of white LED and 1/f noise-fluctuated switching system. These two challenges are presented using a prototype lighting systems developed in this study. (Link to Publication Site) ● Publication site (DOI): 10.1115/DETC2014-34335 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1115/DETC2014-34335 (DOI: 10.1115/DETC2014-34335)
26.	Yohei Sasaki, Masatake Akutagawa, Takahiro Emoto, Yoshinori Tegawa and Yohsuke Kinouchi : Theoretical study of evaluation method for MRI metal artifact, Proceedings of 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 1073-1076, Osaka, Jul. 2013. (Summary) In dental field, the effect of the Magnetic Resonance Imaging (MRI) artifact generated by the magnetic metal is a significant problem. The MRI metal artifact occurs when using magnetic attachment and the keeper of the ferromagnetic substance remains implanted in the mouth as the MR image is taken. In this study, we theoretically evaluated and analyzed the artifact of MR images caused by the keeper based on the actual principle of MRI by means of simulation. As a result we were able to recognize the changes and distortion in the signal strength of the output image. We found that our results of output images and previously reported results of actual measurement are very similar. MRI artifact caused by dental magnetic metal showed that it can be reported by theoretical simulation. (Link to Publication Site) ● Publication site (DOI): 10.1109/EMBC.2013.6609690 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84886577924 (DOI: 10.1109/EMBC.2013.6609690, Elsevier: Scopus)
27.	Teppei Hoshiyama, Masatake Akutagawa, Mutsumi Aihara, Mario Hayashida, Akira Takahashi, Takahiro Emoto, Shinsuke Konaka and Yohsuke Kinouchi : Gene expression analysis of Vibrio parahaemolyticus for UV irradiation, BioEM2013, 94, Thessaloniki, Jun. 2013. (Summary) 腸炎ビブリオを紫外線に曝露した際，遺伝子発現がどのように変化するかについて，遺伝子チップを用いて網羅的に実験・解析を行っている．UV-A，UV-B，UV-Cそれぞれの代表的な波長について，腸炎ビブリオにUV照射した後に解析を行い，各波長ごとの遺伝子発現の違いについて調査した．
28.	Koichi Shono, Takahiro Emoto, Toshiya Okahisa, Udantha R. Abeyratne, Hiromi Yano, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : Automatic Evaluation of Gastrointestinal Motor Activity through the Analysis of Bowel Sounds, Proceedings of the 10th IASTED International Conference on biomedical engineering(biomed 2013), 136-140, Austria, Feb. 2013. (Summary) In this study we propose a novel autoregressive moving average (ARMA)-based method to automatically detect bowel sound (BS)s, and we use the measure, BS duration (BSD), to capture gastrointestinal motor activity. The performance of the proposed method is investigated and evaluated via computer simulations. Working on healthy volunteers during mosapride administrations, we show that the proposed method for automatic detection could achieve a sensitivity of 83.4%, specificity of 93.3% and accuracy of 91.2%. Moreover, we show that the measure BSD can conveniently capture gastrointestinal motor activity.
29.	Masato Kashihara, Takahiro Emoto, Udantha R. Abeyratne, Ikuji Kawata, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : Automatic Snore and Breathing Sound Classification based on the Signal Envelope, Proceedings of the 10th IASTED International Conference on biomedical engineering(biomed 2013), 46-49, Austria, Feb. 2013. (Summary) In this study we focus on this problem and propose a fully automated method to identify breathing and snore sounds. The method is based on the novel feature `positive/negative amplitude ratio (PNAR)' to measure the shape of sound signal. The classification performance of the proposed method was evaluated using receiver operating characteristic (ROC) analysis and was compared with that of traditional zero crossing rate (ZCR). We show that PNAR-based method clearly outperforms ZCR-based method for snore-breathing classification. In particular, PNAR provided better performance for classifying apneic snore and breathing.
30.	Masachika Ishizaki, Yusuke Manabe, Mutsumi Aihara, Akira Takahashi, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi and Toshitaka Ikehara : Improvement of a pipe type UVA-LED sterilizer using a condenser lens, 34th Annual Conference of the bioelectromagnetics society (34 BEMS) (Abstract), 189-190, Brisbane, Jun. 2012. (Summary) UV-Aを用いた殺菌について，UV-A照射量と菌数の関係を表すモデル式を提案し，実験結果と比較している．0.7Lステンレスタンクについて，大腸菌を一定濃度で入れた菌液を用いて近紫外線を照射して菌数の時間的推移を測定した．その結果，菌数の時間推移の傾向をモデル式で表すことができた．
31.	Kyung-Hwa Kim, Makoto Shigeta, Takahiro Emoto, Masatake Akutagawa, Yoshio Kaji, Kazuhiko Furukawa, Shinsuke Konaka, Yohsuke Kinouchi and Fumio Shichijo : Modulation of slow wave EEG during the auditory recall, World Congress on Medical Physics and Biomedical Engineering (WC2012) (Abstract), Beijing, May 2012. (Summary) 聴覚刺激想起時に現れる事象関連電位について，試行間位相コヒーレンス(Inter traial phase coherence, ITPC)を用いて解析を行っている．その結果，被験者に実際に聴覚刺激を提示して刺激を知覚した時と，刺激がないにもかかわらず刺激を知覚した際は，デルタ波帯域においてよく似たITPCを示すことがわかった．
32.	Masatake Akutagawa, Takuya Ikemoto, Hideyuki Samejima, Yoshinori Tegawa, Takahiro Emoto, Shinsuke Konaka and Yohsuke Kinouchi : A computational study of MRI metal artifacts by ferromagnetic dental alloys, World Congress on Medical Physics and Biomedical Engineering (WC2012) (Abstract), Beijing, May 2012. (Summary) An MRI scan is one of the familiar imaging tools for clinical diagnosis of a brain or head region. The metal artifact is occurred when the patient uses the ferromagnetic dental alloys such as the magnetic attachments. To avoid such artifacts, these materials should be temporarily removed by a dentist during the examination. This procedure not only takes extra time, but also the dental prostheses may be damaged by the procedure. If it is possible to assess range of the metal artifact by the dental materials, unnecessary removal procedures expected to be minimized. The purpose of this study is to develop a simple method to evaluate the metal artifacts by the dental materials by use of computer simulations. Perturbation of the magnetic flux distribution by the magnetized materials in the MRI apparatus is the cause of the metal artifact. A magnetic dipole is used as a model of the materials for calculation of magnetic flux distribution. The equivalent magnetic moment of the dipole is easily calculated because it is proportional to the direct magnetic field of the MRI and the size of the material. We compared the magnetic flux distribution by the magnetic dipole model and by the finite element model. As results of them, we confirmed the applicability of the dipole modeling method. The image reconstruction process of the spin echo method was simulated for a numerical mesh phantom. The reconstructed images represented similar characteristics as the practical mesh phantom. The result shows proposed method is available to use assessment of MRI metal artifacts by the ferromagnetic dental alloys. (Keyword) MRI / artifact / simulation / dental arroy
33.	Yukitoshi Yoshida, Masatake Akutagawa, Takahiro Emoto, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa and Hirofumi Nagashino : Investigation of auditory evoked potentials during attention to the auditory stimulus, World Congress on Medical Physics and Biomedical Engineering (WC2012) (Abstract), Beijing, May 2012. (Summary) 事象関連電位を抽出する際，Wavlet変換を利用してノイズ除去を行う手法について提案した．可能な限り加算回数が少ないことが理想的であり，提案法を用いると加算回数が少なくてもERP波形のピークの確認が容易となることを示した．
34.	Masato Katayama, Masatake Akutagawa, Takahiro Emoto, Udantha R. Abeyratne, Yoshio Kaji, Fumio Shichijo and Kazuhiko Furukawa : Scaling of brain inert region from EEG using neural networks, World Congress on Medical Physics and Biomedical Engineering (WC2012) (Abstract), Beijing, May 2012. (Summary) 脳腫瘍などにより脳の一部分の電気的活動がなくなる場合がある．このような不活性領域を部位を脳波を用いて頭皮上から特定する方法について提案している．脳内を複数の領域に分割し，ニューラルネットワークを用いて不活性部位の推定が可能であることを計算機シミュレーションにより示した．
35.	Makoto Shigeta, Takahiro Emoto, Masatake Akutagawa, Yoshio Kaji, Kazuhiko Furukawa, Fumio Shichijo, Hirofumi Nagashino and Yohsuke Kinouchi : Difference of Perceptual Response between Auditory Stimuli and Recalling Them, Proceedings of IEEE-EMBS International Conference on Biomedical and Health Informatics (BHI) 2012, 420-423, Shenzhen, Jan. 2012. (Link to Publication Site) ● Publication site (DOI): 10.1109/BHI.2012.6211605 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84864240200 (DOI: 10.1109/BHI.2012.6211605, Elsevier: Scopus)
36.	Motoshi Masuda, Masatake Akutagawa, Takahiro Emoto, Tomoki Kitawaki, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Shigeru Obara, Kazuo Yoshizaki, Shinsuke Konaka and Yohsuke Kinouchi : Study on blood flow velocity patterns at carotid using one-dimensional computer simulation of humman arteries, Proceedings of the IEEE-EMBS International Conference on Biomedical and Health Informatics (BHI 2012), 651-654, Shenzhen, Jan. 2012. (Summary) 総頸動脈血流速度波形と動脈弾性の関係について，1次元流体解析モデルを用いて検討している．動脈モデルはヒトの全身の主要な動脈を多枝セグメントモデルとして構築したものを用い，動脈弾性を変化させた時の総頸動脈の血流速度波形を求めた結果，動脈弾性の変化により血流速度波形が変化することを示した．これにより総頸動脈の血流速度波形を調べることにより動脈硬化を評価することができる可能性を示した． (Link to Publication Site) ● Publication site (DOI): 10.1109/BHI.2012.6211667 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84864244682 (DOI: 10.1109/BHI.2012.6211667, Elsevier: Scopus)
37.	Koki Aoyama, Takahiro Emoto, Masatake Akutagawa, Motoshi Masuda, Shota Minato, Shigeru Obara, Kazuo Yoshizaki, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Shinsuke Konaka and Yohsuke Kinouchi : Evaluating the atherosclerosis based on the blood flow velocity waveform of common carotid artery, Proceedings of the IEEE-EMBS International Conference on Biomedical and Health Informatics (BHI 2012), 655-658, Shenzhen, Jan. 2012. (Summary) 頸動脈血流速度波形は動脈硬化等の循環器系の状態を反映していることが知られている．また動脈硬化のスクリーニング指標として，CAVIが実用に供されている．本研究では頸動脈血流波形から自動抽出可能な動脈弾性指標の提案を目的とし，評価の妥当性を確認するため，血流速度と CAVI の測定を行い，提案した指標と CAVI の関係を調べた．また，動脈は加齢により硬化する事や，男性に比べ閉経前の女性は軟らかい事から，提案した指標と年齢の関係や性差について調べた． (Link to Publication Site) ● Publication site (DOI): 10.1109/BHI.2012.6211668 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84864258384 (DOI: 10.1109/BHI.2012.6211668, Elsevier: Scopus)
38.	Minghu Huangfu, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : The improved matching method to cell extract using ellipse template, Proceedings of the IEEE-EMBS International Conference on Biomedical and Health Informatics (BHI 2012), 325-328, Shenzhen, Jan. 2012. (Link to Publication Site) ● Publication site (DOI): 10.1109/BHI.2012.6211578 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84864265331 (DOI: 10.1109/BHI.2012.6211578, Elsevier: Scopus)
39.	Takahiro Emoto, Udantha R. Abeyratne, Yusuke Aoki, Masatake Akutagawa, Eiji Kondo, Ikuji Kawada, Shinsuke Konaka and Yohsuke Kinouchi : Detecting the snore related sound using neural network based technique, Proceedings of the IASTED International Conference Signal Processing, Pattern Recognition, and Applications (SPPRA 2011), 169-172, Austria, Feb. 2011. (Summary) In this paper, we propose the novel method to detect automatically snore-related-sound(SRS) by using the noise-robust neural network technique. The performance of the proposed method is evaluated on the clinical SRS data and compared with that of conventional zero-crossing-based method. We show that the proposed method can detect accurately the SRS compared to the conventional method. Even at very low SNR, the proposed method works within the detection error of 0.12[s].
40.	Miku Maeda, Yohsuke Kinouchi, Akira Takahashi, Takahiro Emoto, Masatake Akutagawa and Xin Lian : Novel sterilization device using 265nm UV-LED for escherichia coli, Proceedings of The Bioelectromagnetics Society 32nd Annual Meeting, 43, Seoul, Jun. 2010.
41.	Yuhsuke Manabe, Takahiro Emoto, Masatake Akutagawa, Akira Takahashi and Yohsuke Kinouchi : Simulation of UVA-LED irradiance distribution, Proceedings of The Bioelectromagnetics Society 32nd Annual Meeting, 43, Seoul, Jun. 2010.
42.	Tsuyosi Okahisa, Masayuki Yamato, Akira Takahashi, Masatake Akutagawa, Takahiro Emoto and Yohsuke Kinouchi : UVA-LED for sterilizing water in a water tank, Proceedings of The Bioelectromagnetics Society 32nd Annual Meeting, 42, Seoul, Jun. 2010.
43.	Tomohiro Oshita, Keiko Shintani, Mai Katayama, Takahiro Emoto, Masatake Akutagawa, Akira Takahashi and Yohsuke Kinouchi : An investigation of the sterilization effect of 385nm UVA-LED, Proceedings of The Bioelectromagnetics Society 32nd Annual Meeting, 43, Seoul, Jun. 2010.
44.	Toshiya Okahisa, Tsuda Miho, Tetsu Tomonari, Inoue Atsushi, Tetsuo Kimura, Shinji Kitamura, Hiromi Yano, Takeuchi Hisashi, Koichi Okamoto, Niki Miyako, Masako Kaji, Seisuke Okamura, Kanno Ryota, Shinsuke Konaka, Takahiro Emoto, Masatake Akutagawa and Tetsuji Takayama : Vascular patterns assessed by vascular analysis software are predictive of relapse in patients with inactive ulcerative colitis, Digestive Disease Week 2010, New Orleans, May 2010.
45.	Takahiro Emoto, Udantha R. Abeyratne, Masatake Akutagawa, Karunajeewa Samantha Asela, Shinsuke Konaka and Yohsuke Kinouchi : Comparing benign snores with apneic snores based on high frequency analysis, Proceedings of 2009 World Congress on Medical Physics and Biomedical Engineering, Vol.25, No.7, 820-823, Munich, Sep. 2009. (Summary) In this paper, we analyze the snore sound (SS) considering the spectrum at the high frequency band (HFB) 5kHz to 10kHz. We show the existence of a significant difference between 12 benign snoreres (Respiratory Disturbance Index, RDI=4.9±2.4 event/h; 1352 episodes) and 12 Apneic snoreres (RDI=34.7±23.5 event/h; 2153 episodes) on the HFB. Based on this observation, we propose a novel measure for snore-based obstructive sleep apnoea(OSA) screening. The developed measure could separate the 24-subject training data set into apnea/non apnea classes at sensitivity 83.3% and specificity 83.3%.
46.	Yoshiki Utsunomiya, Azhim Azran, Asato Suzuki, Masatake Akutagawa, Takahiro Emoto, Kazuo Yoshizaki, Shigeru Obara, Hiroyuki Tanaka and Yohsuke Kinouchi : Influence of Respiration on Variability of Peak Systolic Blood Flow Velocity in Common Carotid Artery: Preliminary Study, Proceedings of 2009 World Congress on Medical Physics and Biomedical Engineering, Vol.25, No.7, 796-799, Munich, Sep. 2009.
47.	Yoshinori Nitta, Masatake Akutagawa, Takahiro Emoto, Toshiya Okahisa, Hiroshi Miyamoto, Yoshiaki Ohnishi, Shunya Nakane, Ryuji Kaji, Masaji Nishimura and Yohsuke Kinouchi : The possibility of the classification about Ht values using the AR model, Proceedings of 2009 World Congress on Medical Physics and Biomedical Engineering, Vol.25, No.7, 525-528, Munich, Sep. 2009.
48.	Masatake Akutagawa, Toshihiro Murata, Takahiro Emoto, Yoshio Kaji, Fumio Shichijo, Hirofumi Nagashino and Yohsuke Kinouchi : EEG Evaluation Method Using Nonlinear Modeling, Proceedings of 2009 World Congress on Medical Physics and Biomedical Engineering, Vol.25, No.4, 2197-2200, Munich, Sep. 2009. (Summary) An evaluation method for EEG (electroencephalogram) is described in this paper. The proposed method uses a kind of non-linear autoregressive model by use of MLP (multilayered perceptron). The MLPs are trained by observed signals for short term periods. When the training is completed, each MLP can be thought as a model of EEG generator. To evaluate the change of the generator, variation of connection weights in the MLPs is obtained by the principal component analysis. Advantage of this method is that few prior information is necessary in comparison with conventional frequency analysis. The proposed method was applied to detecting a period for 7 series task. As results of experiments, change of the generator could be figured out as variation of 2nd principal component.
49.	Yoshinori Nitta, Masatake Akutagawa, Takahiro Emoto, Toshiya Okahisa, Hiroshi Miyamoto, Yoshiaki Ohnishi, Masaji Nishimura, Shunya Nakane, Ryuji Kaji and Yohsuke Kinouchi : Investigation of a Classification about Time Series Signal Using SOM, The 13th International Conference on Biomedical Engineering, 598-601, Singapore, Dec. 2008.
50.	Takahiro Emoto, Shinsuke Konaka, Masatake Akutagawa and Yohsuke Kinouchi : A Study on Gigabit Laser Driver Circuit with RC Shunt Circuit for LD Current Waveform Correction, Proceedings of International Conference On Advanced Infocomm Technology 2008, 212-216, Shenzhen, China, Jul. 2008. (Summary) Bipolar laser driver IC circuits in 2.5 gigabits/s optical transmitters for the access network systems have been studied to reduce the overshoots in the laser diode current waveforms by optimizing a RC shunt circuit connected to the laser diode in parallel by using a SPICE circuit simulator. The laser diode current is overshot by a parasitic inductance of the bonding wire between the bipolar IC chip and the DFB laser diode chip, when the current is modulated at over gigabits/s. In this paper, the optimum conditions are described on the R and C values of the shunt circuit. The idea controlling the C value of the RC shunt circuit by an external voltage supply is proposed to compensate the C value deviation from the optimum value to minimize the overshoot. And it is also described that the variable capacitor using a PN diode made of a base-collector connected bipolar transistor has effectively reduced the overshoots caused by the wire inductance increase.
51.	Takahiro Emoto, Masatake Akutagawa, Hirofumi Nagashino and Yohsuke Kinouchi : Feature Extraction for Snore Sound via Neural Network Processing, 29th IEEE EMBS Annual International Conference, 5477-5480, Lyon, France, Aug. 2007. (Summary) Snore sound (SS) is the earliest and the most common symptom of Obstructive Sleep Apnea (OSA) which is a serious disease caused by the collapse of upper airways during sleep. SS should carry vital information on the state of the upper airways and is simple to acquire and rich in features but their analysis is complicated. In this study we use neural network (NN) based method to model SS via a simple second order one-step predictor. We show that the some hidden information/feature of a SS can be conveniently captured in the connection-weight-space (CWS) of the NN, after a process of supervised training. The availability of the proposed method is investigated by performing independent component analysis (ICA) on CWS. (Link to Publication Site) ● Publication site (DOI): 10.1109/IEMBS.2007.4353585 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-57649188047 (DOI: 10.1109/IEMBS.2007.4353585, Elsevier: Scopus)
52.	Kunihiko Inoue, Masatake Akutagawa, Takahiro Emoto, Udantha R. Abeyratne, Tetsuya Uemura, Hirofumi Nagashino and Yohsuke Kinouchi : Order estimation and screening of apneic snore sound using the Akaike Information Criterion, Proceedings of 2006 World Congress on Medical Physics and Biomedical Engineering, Seoul, Korea, August 27-September 1, 2006, Vol.1, 1028-1031, Seoul, Aug. 2006.
53.	Takahiro Emoto, Udantha R. Abeyratne, Masatake Akutagawa, Hirofumi Nagashino and Yohsuke Kinouchi : Neural networks for the novel diagnosis method based on clinical snoring sound analysis in apnea, Proceedings of 2006 World Congress on Medical Physics and Biomedical Engineering, Seoul, Korea, August 27-September 1, 2006, Vol.1, 836-840, Seoul, Aug. 2006.
54.	Takahiro Emoto, Masatake Akutagawa, Udantha R. Abeyratne, Hirofumi Nagashino and Yohsuke Kinouchi : A comparison of neural network and Fast Fourier Transform-based approach for the state analysis of brain, Proceedings of 2005 International Conference on Neural Networks and Brain, Beijing, China, October 13-15, 2005, Vol.1, Beijing, Oct. 2005.
55.	Takahiro Emoto, Masatake Akutagawa, Udantha R. Abeyratne, Hirofumi Nagashino and Yohsuke Kinouchi : Tracking the states of a nonlinear system in the weight-space of a feed-forward neural network, Proceedings of International Joint Conference on Neural Networks, 96-101, Montreal, Jul. 2005.
56.	Takahiro Emoto, Udantha R. Abeyratne, Masatake Akutagawa, Hirofumi Nagashino and Yohsuke Kinouchi : Neural networks for snore sound modeling in sleep apnea, Proceedings of 2005 IEEE International Conference on Computational Intelligence for Measurement Systems and Applications, Giardini Naxos, Italy, July 20-22, 2005, Vol.1, 316-321, Giardini Naxos, Jul. 2005. (Link to Publication Site) ● Publication site (DOI): 10.1109/CIMSA.2005.1522887 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-33749049395 (DOI: 10.1109/CIMSA.2005.1522887, Elsevier: Scopus)
57.	Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi, Udantha R. Abeyratne and Hirofumi Nagashino : Application of BP neural networks to transition detection in time series models, Proceedings of The 9th World Multi-Conference on Systemics, Cybernetics and Informatics, Orlando, USA, July 10-13, 2005, Vol.6, 360-365, Orlando, Jul. 2005. (Summary) Biological signals are used in medical field to assess and track the functional states of vital organs such as the brain. The complexity (e. g. nonlinearity and nonstationarity) of such signals and their low signal to noise rations often make it a challenging task to use them in time critical applications In this paper we propose a new neural network based technique to address those problems. We show that a feedforward, multi-layered neural network can conveniently capture the states of a nonlinear system in its connection weight-space, after a process of supervised training. The performance of the proposed method is investigated with some systems simulated via a mathematical model, and the system generating real world electroencephalogram (EEG) signals.
58.	Takahiro Emoto, Masatake Akutagawa, Udantha R. Abeyratne, Hirofumi Nagashino and Yohsuke Kinouchi : Analysis of a nonlinear system via internal-state of a neural network, Proceedings of International Workshop on Nonlinear Signal and Image Processing, Sapporo, Japan, May 18-20, 2005, 441-446, Sapporo, May 2005. (Summary) Internal state of a neural network have been inspected to evaluate the performance of the network. In particular, the weight vectors of the network have been applied for the analysis of time series such as biological signal and nonstationarity signal. The complexity (e. g. nonlinearity and nonstationarity) of such signals often make it a challenging task to use them in signal processing field. In this paper we propose a new neural network based technique to address those problems. We show that a feed forward, multi-layered neural network can conveniently capture the parameter change of a nonlinear system in its connection weight-space, after a process of supervised training. The performance of the proposed method is investigated with linear and nonlinear system simulated via a mathematical equation.
59.	Takahiro Emoto, Masatake Akutagawa, Hirofumi Nagashino, Yohsuke Kinouchi and Udantha R. Abeyratne : Detection of biological system deviation by BPNN, Proceedings of 8th International Conference on Control, Automation, Robotics and Vision, 931-935, Kunming, Dec. 2004. (Summary) A deviation detection method of biological systems using neural networks is described. This simple method is to analyze time series signals using moving-averagetype neural networks. The result of this analysis indicates the transition of the system as simple values. Purpose of this study is to investigate fundamental properties of this method using simple mathematical models which simulate biological systems. As results of computer simulations, interesting characteristics were shown, and its usefulness was confirmed.
60.	Takahiro Emoto, Masatake Akutagawa, Hirofumi Nagashino and Yohsuke Kinouchi : Detection of transition of various time series model using BP neural networks, M. Gh. Negoita, R. J. Howlett and L. C. Jain (Eds.): Knowledge-Based Intelligent Information and Engineering Systems (Proceedings of Eighth International Conference on Knowledge-Based Intelligent Information and Engineering Systems, Wellington, New Zealand, Sept. 20-24, 2004), Springer-Verlag, Vol.Part II, 1060-1067, Berlin, Heidelberg, Sep. 2004.

Proceeding of Domestic Conference:

1.	Hitomi Yamagata, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi, Yoshio Kaji, Fumio Shichijo and Toshitaka Ikehara : Investigation of continuous quantity input using SSVEP with multiple flashing stimuli, 2024 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, 137, Sep. 2024.
2.	Shuki Kitajima, Hiroo Tarao, Hiroyuki Kitajima, Masatake Akutagawa, Takahiro Emoto, Emiko Yasuno, Tosihiko Tominaga, Hiromichi Yumoto, Toshitaka Ikehara and Yohsuke Kinouchi : Effect of parameters values on temperature rise in tooth model in the treatment of apical periodontitis by thermal sterilization, 2024 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, 135, Sep. 2024.
3.	IKUTA Kodai, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi, Kazuyoshi Kitaoka, Hirotsugu Yamada and Hiroyuki Tanaka : CNNを用いた総頸動脈血流速度分布と動脈硬化症の関連性の検討, Proceedings of The 63rd Annual Conference of Japanese Society for Medical and Biological Engineering, 314, May 2024. (Summary) アテローム性動脈硬化症は循環系疾患の危険因子の 1 つであり，動脈硬化症は肥満・喫煙・運動不足や生活習慣病によって進行する．現在では動脈硬化症の検査方法の一つとして，超音波エコー画像で評価する頸動脈超音波検査がある．しかし，測定・評価にはある程度の専門知識が必要になる．そこで本研究グループでは，容易に測定可能な小型のスクリーニングデバイスとして頸動脈血流速度測定装置の開発に取り組んでいる．総頸動脈における血流速度の時間変化 ( 以後，総頸動脈血流速度波形と記す ) の数値シミュレーションを行った結果，動脈弾性が変化すると総頸動脈血流速度波形には違いが現れることが示されている．しかし，総頸動脈における血流速度分布の時間変化 ( 以後，総頸動脈血流速度分布と記す ) と動脈硬化症の関連性については，まだ十分に明らかになっていない．そこで，頸動脈血流速度測定装置の試作機で測定された健常者と動脈硬化症患者の総頸動脈血流速度分布の比較を行った．測定された血流速度分布を学習データとして畳み込みニューラルネットワークを用い，健常者と動脈硬化症患者に分類した．その結果，総頸動脈血流速度波形の特徴量を用いて分類を行った結果より，正確率は向上した．今後は，両者間の違い・特徴を明らかにしていきたい．
4.	Masatake Akutagawa, Ryohei Takiguchi, Takahiro Emoto, Fumio Shichijo, Yoshio Kaji and Yohsuke Kinouchi : 独立成分分析を用いた嚥下時筋電図解析に関する検討, Proceedings of The 63rd Annual Conference of Japanese Society for Medical and Biological Engineering, 302, May 2024. (Summary) 嚥下は健常な生活を送る上で必須の機能である．嚥下機能障害があると誤嚥性肺炎等の疾病を発症し，重篤な状態となる場合もある．嚥下の健全性を簡便に判別することができれば早期に嚥下障害を発見し適切な対策を施すことができると期待できる．本研究は頸部の表面筋電図から嚥下関連筋の活動を推定し，各筋群の活動から嚥下機能を評価することを目的としている．嚥下運動は舌骨や喉頭蓋など様々な部位が連動しており，嚥下関連筋が適切な時期に時間活動することで実現している．これらの筋群活動を直接に記録するには針筋電図が必要であり簡便な測定とは言い難い．そこで表面筋電図から独立成分分析(ICA)を用いて特定の筋群の筋電波形を分離することを試みる．ICA は複数の未知の独立信号源で発生した信号が未知の関数により混合された観測信号から，元の独立成分を推定する手法である．しかし途中で混合関数が変化すると解析が困難となる．嚥下時は喉頭挙上といった運動により電極と筋群間の距離が変化するため ICA の適用することが難しい．そこで ICA の適用区間を 100 ms と短くし重複時間 95 ms でずらしながら 1 回の嚥下運動に対して解析した．隣接する区間で類似の独立成分波形を追跡することで特定の筋群の連続波形を求めた．また ICA により推定された復元行列の成分を評価することで信号源の移動を評価したので報告する．
5.	SHINKAI Mizuki, Yoshitaka Suzuki, KASAI Reo, MORI Shoma, SHIBAGAKI Akari, Kazuo Okura, Takahiro Emoto, Fumio Shichijo and Yoshizo Matsuka : 非侵襲性の睡眠時嚥下活動検出システムの構築, 日本嚥下学会, Feb. 2024.
6.	ONO Miyu, Kai Ishida, MAKIMOTO Mana, Takaaki Shimohata, Takashi Uebanso, Mutsumi Aihara, Masatake Akutagawa, Takahiro Emoto, Kazuaki Mawatari, 岩田剛敏 and Akira Takahashi : UVA 照射による Campylobacter jejuni の上皮定着性に対する影響, 第16 回日本カンピロバクター研究会総会, Dec. 2023.
7.	RYOHEI Takiguchi, Masatake Akutagawa, Takahiro Emoto, Fumio Shichijo, Yoshio Kaji and Yohsuke Kinouchi : Feature extraction of surface electromyogram during swallowing using independent component analysis, 2023 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, 201, Sep. 2023.
8.	Hitomi Yamagata, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi, Yoshio Kaji, Fumio Shichijo and Toshitaka Ikehara : Study on the phase of SSVEP for improving information transfer rate, 2023 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, 200, Sep. 2023.
9.	SHUTA Akai, Masatake Akutagawa, Takahiro Emoto, Kazuyoshi Kitaoka, Hiroyuki Tanaka and Yohsuke Kinouchi : Sound field analysis of split-type ultrasonic probe receiver for blood flow velocity measurement, 2023 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, 199, Sep. 2023.
10.	Atsushi Matsuoka, Masatake Akutagawa, Yohsuke Kinouchi, Takahiro Emoto, Hiromichi Yumoto, Minato Akizuki, Tosihiko Tominaga, Hiroo Tarao, Toshitaka Ikehara and Emiko Yasuno : From temperature-time product point of view ,non-thermal effects in electro-sterilisation of Streptococcus mutans, 2023 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, 198, Sep. 2023.
11.	YUSUKE Kuroda, Masatake Akutagawa, Hiroo Tarao, Takahiro Emoto, Hiromichi Yumoto, Tosihiko Tominaga, Toshitaka Ikehara, Emiko Yasuno and Yohsuke Kinouchi : A study of effects on successor permanent teeth during electro-magnetic root canal therapy using electro-themal coupled analysis, 2023 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, 197, Sep. 2023.
12.	Junya Maruyama, Takahiro Emoto, Satoru Kimura, Yoshitaka Suzuki, SHINKAI Mizuki, SHIBAGAKI Akari, Yoshizo Matsuka and Fumio Shichijo : 成人健常者における炭酸水嚥下量が嚥下音の音響特性に与える影響調査, 生体医工学シンポジウム, Sep. 2023.
13.	YUMI Goto, Yoshitaka Suzuki, SATORU Kimura, 仲座海希, 船岡俊介, 内ヶ崎一徹, 有安雄一, SHINKAI Mizuki, SHIBAGAKI Akari, Takahiro Emoto and Yoshizo Matsuka : 咽喉マイクロホンを用いた顎口腔咽頭活動音の音響特性, The Journal of Japanese Society of Stomatognathic Function, Dec. 2022.
14.	Satoru Kimura, Takahiro Emoto, YUMI Goto, Yoshitaka Suzuki, SHINKAI Mizuki, SHIBAGAKI Akari and Yoshizo Matsuka : 複数の機械学習手法を用いた嚥下音検出システムの提案, The Journal of Japanese Society of Stomatognathic Function, Dec. 2022.
15.	Kai Ishida, Mutsumi Aihara, Takaaki Shimohata, Shiori Kitayama, 勢川玲花, Takashi Uebanso, Kazuaki Mawatari, Hiroshi Suzuki, Masatake Akutagawa, Takahiro Emoto, 山本光生, 富久章子, 和田敬宏, 岡本雅之, 伊藤浩, Takashi Yasuno, Yohsuke Kinouchi and Akira Takahashi : 鶏舎におけるUV-LED導入による衛生環境改善効果の検討, 第43回日本食品微生物学会学術総会, Sep. 2022.
16.	Takanori Fukuhara, Masatake Akutagawa, Takahiro Emoto, Kazuyoshi Kitaoka, Hiroyuki Tanaka and Yohsuke Kinouchi : Sound field measurement system of ultrasound probe for the doppler velocimeter, 2022 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, 137, Sep. 2022.
17.	Kai Ishida, Mutsumi Aihara, Takaaki Shimohata, Shiori Kitayama, 勢川玲花, Takashi Uebanso, Kazuaki Mawatari, Hiroshi Suzuki, Masatake Akutagawa, Takahiro Emoto, 山本光生, 富久章子, 和田敬宏, 岡本雅之, 伊藤浩, Takashi Yasuno, Yohsuke Kinouchi and Akira Takahashi : 鶏舎内へのUV―LED導入による鶏の生育及び衛生環境の改善効果の検討, 日本家禽学会2022年度秋季大会, Sep. 2022.
18.	Bui Kim Thi Ngan, Kazuaki Mawatari, Takahiro Emoto, Shiho Fukushima, Takashi Uebanso, Takaaki Shimohata, Masatake Akutagawa, Yohsuke Kinouchi and Akira Takahashi : UV-LED irradiation reduces the infectivity of herpes simplex virus type 1 by targeting different viral components depending on the peak, 第265回徳島医学会学術集会, Jul. 2022.
19.	Yumi Yamagami, Takahiro Emoto, Yoshitaka Suzuki, SHINKAI Mizuki, Yoshizo Matsuka and Fumio Shichijo : 成人男性被験者における頭位が嚥下音に与える影響, 生体医工学会, Jun. 2022.
20.	Ryuto Kishi, Takahiro Emoto, Yoshitaka Suzuki, SHINKAI Mizuki, Yumi Yamagami and Fumio Shichijo : 摂食嚥下障害患者の呼吸音のホルマント周波数の推定, 一般社団法人電子情報通信学会信学技報, Mar. 2022.
21.	KITAYAMA Shiori, Takaaki Shimohata, 白石志帆, ISHIDA Kai, Miyuki Ogata, Takashi Uebanso, Kazuaki Mawatari, Mutsumi Aihara, Masatake Akutagawa, Takahiro Emoto, Hiroshi Suzuki, Takashi Yasuno, 伊藤浩, 和田敬宏, 岡本雅之, 富久章子, Akira Takahashi and Yohsuke Kinouchi : UV-LEDによる鶏舎内光環境の構築, LED総合フォーラム2022 in 徳島, 169-172, Jan. 2022.
22.	Toshitaka Ikehara, Mutsumi Aihara, Koichiro Tsuchiya, Takahiro Emoto, Masatake Akutagawa, Akira Takahashi and Yohsuke Kinouchi : Studies of reactive oxygen species scavenging system of cultured cells by using LED light irradiation, LED総合フォーラム2022 in 徳島, 193-198, Jan. 2022.
23.	Hiromichi Yumoto, Kouji Hirao, Tosihiko Tominaga, 多田瑛一朗, Masatake Akutagawa, Takahiro Emoto, Hiroo Tarao, Toshitaka Ikehara, Emiko Yasuno and Yohsuke Kinouchi : 高周波電流通電・電磁波照射の歯根膜細胞に対する影響と難治性根尖性歯周炎に対する臨床応用, LED総合フォーラム2022 in 徳島, 179-180, Jan. 2022.
24.	大城戸楓太, Masatake Akutagawa, Hiromichi Yumoto, Takahiro Emoto, Hiroo Tarao, Tosihiko Tominaga, Kouji Hirao, Toshitaka Ikehara, Emiko Yasuno and Yohsuke Kinouchi : 500 kHzの高周波電圧印加による電気殺菌の非熱的効果の基礎的研究, LED総合フォーラム2022 in 徳島, 141-142, Jan. 2022.
25.	Yumi Yamagami, Takahiro Emoto, Yoshitaka Suzuki, SHINKAI Mizuki and Yoshizo Matsuka : 成人男性被験者における頭位が嚥下音に与える影響, The Journal of Japanese Society of Stomatognathic Function, Dec. 2021.
26.	Takanori Fukuhara, Masatake Akutagawa, Takahiro Emoto, Kazuyoshi Kitaoka, Hiroyuki Tanaka and Yohsuke Kinouchi : Evaluation of sound pressure distribution of divided-type ultrasound probe for the doppler velocimeter using computer similations, Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, 167, Sep. 2021.
27.	Yumi Yamagami, Takahiro Emoto, Yoshitaka Suzuki, SHINKAI Mizuki and Fumio Shichijo : 成人男性被験者における頭位が嚥下音に与える影響に関する調査, 第26・27回合同学術大会日本摂食嚥下リハビリテーション学会プログラム・抄録集, Aug. 2021.
28.	Toshiaki Kunitomi, Masatake Akutagawa, Takahiro Emoto and Yohsuke Kinouchi : 複数の歯科用磁性金属による MRI アーチファクトのシミュレーション評価, 第60回日本生体医工学会大会, Jun. 2021.
29.	Futa Okido, Masatake Akutagawa, Hiromichi Yumoto, Takahiro Emoto, Hiroo Tarao, Tosihiko Tominaga, Kouji Hirao, Toshitaka Ikehara, Emiko Yasuno and Yohsuke Kinouchi : 細菌細胞懸濁液への均一電流印加のためのTrench 型電圧印加装置の製作, 第60回日本生体医工学会大会, Jun. 2021.
30.	Yuki Matsugi, Masatake Akutagawa, Takahiro Emoto, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Hirotsugu Yamada, 鳥居裕太 and Yohsuke Kinouchi : 収縮期加速時間と動脈硬化症の関連性に関する検討, 第60回日本生体医工学会大会, Jun. 2021.
31.	友野陽平, Takahiro Emoto, Yoshitaka Suzuki, 新開瑞希 and 七條文雄 : 嚥下障害患者の評価を目指した嚥下音の自動検出システムの開発, 第35回信号処理シンポジウム, Nov. 2020.
32.	Hideo Taketani, Masatake Akutagawa, Hiroo Tarao, Takahiro Emoto, Hiromichi Yumoto, Kouji Hirao, Tosihiko Tominaga, Toshitaka Ikehara, Emiko Yasuno and Yohsuke Kinouchi : Development of coupled electrical-thermal analysis system for search of the optimal conditions during root canal treatment by applying high frequency voltage, Proceedings of the 2020 IEICE Society Conference, 324, Sep. 2020.
33.	Masatake Akutagawa, Yuki Terai, Takahiro Emoto, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Hirotsugu Yamada, Yuta Torii and Yohsuke Kinouchi : Study on blood flow velocity waveform in common carotid artery in patients with atherosclerosis, 第59回日本生体医工学会学術大会, May 2020.
34.	金川未来也, Takahiro Emoto, Osamu Jinnouchi and 阿河誠治 : 聴覚モデルを用いた呼吸音検出法の開発, 第 44 回肺音(呼吸音)研究会, presentationB3, Nov. 2019.
35.	Shunsuke Yamaguchi, Masatake Akutagawa, Hiromichi Yumoto, Kouji Hirao, Takahiro Emoto, Hiroo Tarao, Tosihiko Tominaga, Toshitaka Ikehara and Yohsuke Kinouchi : Influence on osteoblasts by high freqency AC voltage application, 2019 Shikoku-section Joint Convention Record of the Institutes of Electrical and Related Engineers, 25, Sep. 2019.
36.	HSU SUNG CHUN, Masatake Akutagawa, Takahiro Emoto, Kazuyoshi Kitaoka, Hiroyuki Tanaka and Yohsuke Kinouchi : 頸動脈超音波ドプラ法の最大血流速度抽出法の耐雑音性向上に関する研究, 生体医工学シンポジウム2019 (徳島), Sep. 2019.
37.	Kouji Hirao, Hiromichi Yumoto, 富永敏彦, 太良尾浩生, Takahiro Emoto, Masatake Akutagawa, Toshitaka Ikehara and Yohsuke Kinouchi : 高周波電流を用いた歯周組織再生療法, 生体医工学シンポジウム2019 (徳島), Sep. 2019.
38.	Taiki Ono, Masatake Akutagawa, Takahiro Emoto and Fumio Shichijo : Fundamental study for swallowing motion monitoring using 9-axis inertial measurement unit, 第25回日本摂食嚥下リハビリテーション学会学術大会プログラム・抄録集, Sep. 2019.
39.	Daichi Tagami, Masatake Akutagawa, Takahiro Emoto and Fumio Shichijo : Development of swallowing counting system using magnetic sensor, 第25回日本摂食嚥下リハビリテーション学会学術大会プログラム・抄録集, Sep. 2019.
40.	Midori Yoshida, Eiichi Honda, Teruaki Ito, Tetsuo Ichikawa, Masatake Akutagawa, Takahiro Emoto and Yohsuke Kinouchi : 多波長植物専用LED照射装置を用いた完全制御型水耕栽培システム, LED総合フォーラム2019 in 徳島, Feb. 2019.
41.	高瀬祐司, Takahiro Emoto and Masatake Akutagawa : 振幅情報を用いた有声音と無声音の識別, 第33回信号処理シンポジウム, Nov. 2018.
42.	刑部拓馬, Takahiro Emoto and Masatake Akutagawa : 暗算時における腸音解析, 第41回日本生体医工学会中国四国支部大会, Oct. 2018.
43.	HSU SUNG CHUN, Masatake Akutagawa, Takahiro Emoto, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Yohsuke Kinouchi and Shinsuke Konaka : Automatic extraction of blood flow velocity waveform feature points and evaluation of arterial elasticity index by systolic area, 2018 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers (EHIME), 178, Sep. 2018. (Summary) 本研究グループで開発した超音波ドプラ法を用いた血流速度測定装置を用いて頸動脈血流速度波形の特徴点の自動抽出を試みた．頸動脈血流波形は年齢とともに変化することが知られており，波形は様々な要因により変化していると思われるが，動脈の柔らかさの影響を受けることがわかっている．このため動脈硬化の診断支援への応用が考えられる．血流速度波形の解析には波形のピークやノッチを自動抽出する手法が必要となる．そこでこれまで提案されていた手法を改良し，手動での特徴点抽出と精度を比較したところ，抽出精度は72%程度であった．
44.	Yuki Terai, Masatake Akutagawa, Takahiro Emoto, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Yohsuke Kinouchi and Shinsuke Konaka : Comparison of carotid artery blood flow velocity waveforms due to difference in measuring apparatus, 2018 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers (EHIME), 177, Sep. 2018. (Summary) 本研究グループで開発したドプラ効果を用いた血流速度測定装置と超音波画像診断装置を用いて頸動脈血流速度を速度を測定した際の差異について検討した．血流速度測定装置は連続ドプラ法，超音波画像診断装置はパルスドプラ法を用いており，測定部位，測定範囲の違いによる影響があると思われたが，両者の波形を14名の被験者に対して相関係数を用いて比較したが，両波形の形状の類似性は高く波形の比較は可能であると思われた．
45.	Yusaku Shimizu, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi and Shinsuke Konaka : The influence of gradient magnetic field on MRI metal artifact index, 2018 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers (EHIME), 176, Sep. 2018. (Summary) 歯科用磁性アタッチメントは義歯に埋め込む磁石構造体と歯根などの口腔内に固定する軟磁性金属からなるキーパーからなるが，MRI検査時にはキーパーが金属アーチファクトの原因となるため，検査部位がアーチファクトの影響を受ける範囲であればキーパーの撤去が必要となる．本研究はキーパー撤去の必要性を判断するためのアーチファクト指標の提案を目的としている．MRI撮像時の傾斜磁界の大きさとアーチファクト評価指標条件の関係について計算機シミュレーションにより調査した．その結果，一般に磁界傾斜が小さいとアーチファクトは大きいが，磁界傾斜の小さいにも関わらずアーチファクトがそれほど大きくならない条件があることが示唆された．
46.	Taiki Ohno, Masatake Akutagawa, Takahiro Emoto and Fumio Shichijo : 9軸慣性センサを用いた嚥下運動測定に関する基礎的検討, Program and Abstract book of the 24th Annual Meeting of the Japanese Society of Dysphagia Rehabilitation, Sep. 2018. (Summary) 1.目的:摂食嚥下障害の代表的なスクリーニングテストとして反復唾液嚥下テストがある．これをより客観的に定量化することを目的とし，本研究では，9軸慣性センサを用いて喉頭隆起の動きに伴う嚥下運動を測定し，嚥下運動と体動等の動きを区別することができるか検討した．2.方法: 3軸加速度センサ，3軸磁気センサ，3軸角加速度センサが搭載された9軸慣性センサを喉頭隆起の頭側に取り付け，嚥下運動に伴う9軸慣性センサの動きを測定する．健常な男性10名，女性2名を対象に唾液，水，プリンの嚥下を指示し測定を行う．また，角加速度センサ測定値に数値積分を行い，喉頭隆起の動きに伴う最大回転角度を算出した．3．結果:加速度，磁束密度，角加速度の全てにおいて嚥下時に特徴的な変化がみられた．ある被験者において嚥下時は10∼15°程度，水を飲むときの口を開ける動作では15.5°であった．嚥下時の喉頭隆起の動きに伴う最大回転角度は個人差があるが男性と女性では男性が大きな値をとることが多い．加速度は，嚥下時と顎が上がる動作では，0.1∼0.2g程度変化する(gは重力加速度)．4．考察: 9軸慣性センサを用いた測定では，嚥下運動，その他の動きの両方から回転運動が検出された．加速度については嚥下運動とその他の動きでは異なる変化を示したため区別が可能であると考えられる．センサ測定値を組み合わせた評価方法の考案がより精度の良い定量化につながると考えられる．
47.	臼杵拓哉 and Takahiro Emoto : 咽喉マイクロフォンを用いた体位による嚥下音への影響の調, 第24回日本摂食嚥下リハビリテーション学会学術大会, Sep. 2018.
48.	Fumika Oi, Masanobu Haraguchi, Yohsuke Kinouchi, Tadahiko Nakagawa, RYUTO TAMAI, Koichi Okamoto, Tetsuji Takayama, Masahiro Sogabe, Toshiya Okahisa, Masatake Akutagawa and Takahiro Emoto : Small Animal Extracorporeal Circulation with Irradiation Models and Studying Responses, Transactions of the Japanese Society for Medical and Biological Engineering, Vol.annual 56, 171, Jun. 2018. (Summary) <p>We made an extracorporeal circulation (ECC) with light emitting diode (LED) irradiation system on adult male SD rats. We used three wave lengths of each LED which main wave lengths are 365nm, 465nm, 515nm. ECC was derived to ECC with irradiation. This system is consisted of a tubing line, a roller pump and an irradiation device. Animals were divided into not-irradiated group and other groups. We took the blood tests at pre-circulation with irradiation and post-circulation with irradiation. We compared Experimental data between pre-circulation with irradiation and post- circulation with irradiation.</p> (Keyword) 体外循環血液 / T細胞リンパ種 / LED / UVA光 / 青色光 / 青緑色光 (Link to Publication Site) ● Publication site (DOI): 10.11239/jsmbe.Annual56.S171 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001288070721536 ● Search Scopus @ Elsevier (DOI): 10.11239/jsmbe.Annual56.S171 (DOI: 10.11239/jsmbe.Annual56.S171, CiNii: 1390001288070721536)
49.	Eiichi Honda, Teruaki Ito, Yohsuke Kinouchi, Tetsuo Ichikawa, Masatake Akutagawa, Takahiro Emoto and Midori Yoshida : 一般照明および植物育成照明に応用できる新しいLED照明方法の開発, LED総合フォーラム2018 in 徳島, Feb. 2018.
50.	Kenya Kawabe, Takahiro Emoto, Udantha R. Abeyratne, Masatake Akutagawa, Ikuji Kawata and Osamu Jinnouchi : 聴覚特性を考慮したいびき音解析による閉塞性睡眠時無呼吸症候群スクリーニングの検討, 第40回日本生体医工学会中国四国支部大会講演抄録, 23, Oct. 2017.
51.	Shimpachi Matsunaga, Masatake Akutagawa, Takahiro Emoto, Yoshio Kaji, Kazuhiko Furukawa, Fumio Shichijo, Shinsuke Konaka and Yohsuke Kinouchi : Accuracy of source localization usng eccentrically located electrodes for EEG with noise, 2017 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers (EHIME), 163, Sep. 2017.
52.	Takayuki Tominaga, Masatake Akutagawa, Takahiro Emoto, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Yohsuke Kinouchi and Shinsuke Konaka : A search method of optimal probe position during measurement of the carotid arterial blood flow velocity using the ultrasonic doppler, 2017 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers (EHIME), 162, Sep. 2017.
53.	Hiroki Nishiwaki, Masatake Akutagawa, Takahiro Emoto, Emiko Yasuno, Shinsuke Konaka, Yohsuke Kinouchi and Akira Tangoku : Development of measurement device for distribution of bio-impedance using multiple electrodes, 2017 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers (EHIME), 161, Sep. 2017.
54.	Hirotaka Motoyama, Masatake Akutagawa, Takahiro Emoto, Emiko Yasuno, Takaaki Shimohata, Akira Takahashi, Shinsuke Konaka and Yohsuke Kinouchi : Study on electrode structure for measurement of electrical impedance of the human intestine using the finite element method, 2017 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers (EHIME), 160, Sep. 2017.
55.	Noriyuki Myoga, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : Investigation of blood vessel extraction method from a Narrow-Band Imaging(NBI) in the endoscopic image, 2017 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers (EHIME), No.13-15, 149, Sep. 2017.
56.	Takashi Yamato, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : Extracted blood vessel comparison of the White light and NBI endoscopic image, 2017 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers (EHIME), No.13-14, 148, Sep. 2017.
57.	Ryo Tanaka, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : Investigation of matching rate improvement by the frame extension of music matching using spectrum similarity, 2017 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers (EHIME), No.17-33, 213, Sep. 2017.
58.	Junya Asano, Masatake Akutagawa, Takahiro Emoto and Fumio Shichijo : 磁気センサを用いた自動反復唾液嚥下テストの小型化, Program and Abstract book of the 23th Annual Meeting of the Japanese Society of Dysphagia Rehabilitation, Sep. 2017. (Summary) 【目的】本研究では，磁石と磁気センサを用いて嚥下運動を客観的に測定でき，自動でRSSTを行える装置の開発を行っており，装置の小型化を検討した．【方法】磁気センサを用いた測定装置を被験者の胸骨の頚切痕上部に固定し，喉頭隆起上部に磁石を取り付け，磁石の動きによる磁束密度変化を測定する．嚥下運動に伴い磁気センサと磁石の距離が大きくなり，それに伴い磁束密度が小さくなる．この原理を用いて嚥下運動を測定する．磁気センサでの測定結果において典型的な嚥下波形をテンプレートとして作成しておき，テンプレートと測定結果の類似度を用いることで，嚥下を行なった回数，時刻を自動計数することが可能となった．しかし，磁石の違いによりテンプレートが変わり，それによって精度が低下する場合があった．そこで，微分フィルターを用いた方法での自動計数を検討した．健常者10名(男性9，女性1)を対象に30秒間の空嚥下を指示し測定を行う．【結果】磁気センサでの測定結果において地磁気の影響を受けずに，嚥下回数の自動計数が可能であり，実際に嚥下回数を行なった回数と自動計数された嚥下の回数は一致した．【考察】今回の結果から，磁気センサを用いて嚥下運動を自動で測定することが可能であり，この提案方法を適用することでRSSTを簡便で客感的に行うことが可能であると示唆された．さらに，測定装置の小型化が可能となった．
59.	Mayu Uyama, Masahiro Sogabe, 平田光里, Tadahiko Nakagawa, Akira Fukuya, Satoshi Teramae, Daisaku Fujimoto, Hironori Tanaka, Yasuhiro Mitsui, Shinji Kitamura, Koichi Okamoto, Tetsuji Takayama, Takaaki Shimohata, Takashi Uebanso, Kazuaki Mawatari, Akira Takahashi, Takahiro Emoto, Masatake Akutagawa, Rumi Katashima and Toshiya Okahisa : 模擬腹水による胸腹水濾過濃縮再静注法の教育体制の構築, 第37回日本アフェレシス学会学術大会, Nov. 2016.
60.	Ryuto Tamai, Hiroto Kasai, Daiki Tanaka, Naoya Tani, 平田光里, Tadahiko Nakagawa, Tetsu Tomonari, Tatsuya Taniguchi, Koichi Okamoto, Hiroshi Miyamoto, Tetsuji Takayama, Takahiro Emoto, Masatake Akutagawa, Takaaki Shimohata, Takashi Uebanso, Kazuaki Mawatari, Akira Takahashi, Mayu Uyama, Masahiro Sogabe and Toshiya Okahisa : 胸腹水濾過濃縮再静注法のクロスフロー方式の腹水濾過時の物理的刺激が腹水に及ぼす影響に関する実験的検討., 第54回日本人工臓器学会大会, Nov. 2016.
61.	Takahiro Emoto : 腸音解析による腸の運動機能評価技術, 第69回日本自律神経学会総会, Nov. 2016.
62.	Hitomi Watanabe, Kazuaki Mawatari, Risa Nishisaka, Mutsumi Nakahashi, Akari Tsunedomi, Takaaki Shimohata, Takashi Uebanso, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi and Akira Takahashi : 透析液の細菌汚染調査と近視外LEDによる殺菌効果の評価, 第69回日本細菌学会中国・四国支部総会, Oct. 2016.
63.	Junya Asano, Masatake Akutagawa, Takahiro Emoto and Fumio Shichijo : Improvement of dysphagia screening test using magnetic sensors, Program and Abstract book of the 22nd Annual Meeting of the Japanese Society of Dysphagia Rehabilitation, 368, Sep. 2016.
64.	Ryo Tanaka, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : Investigation of music tone matching rate improvement using frequency spectrum similarity, 2016 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, No.17-6, 219, Sep. 2016.
65.	岡田卓也, Takahiro Emoto and Masatake Akutagawa : 非接触マイクロフォンを用いた呼吸音の音響特徴量による睡眠，覚醒判定の基礎検討, 生体医工学シンポジウム in 旭川, Sep. 2016.
66.	川邊賢也, Takahiro Emoto, Masatake Akutagawa, Udantha R. Abeyratne, 川田育二 and 陣内自治 : 聴覚モデルを用いたいびき音解析による OSAS スクリーニングの検討, 生体医工学シンポジウム in 旭川, Sep. 2016.
67.	Yusuke Matsumoto, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : An Examination on Blood Vessel Width Extraction Method Considering the Flat Vessel Brightness Distribution Using Vector Distance, 2016 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, No.13-40, 191, Sep. 2016.
68.	Noriyuki Myoga, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : Investigation of thin blood vessel extraction method from a Narrow-Band Imaging in the endoscopic image, 2016 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, No.13-39, 190, Sep. 2016.
69.	Takashi Yamato, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : Investigation on blood vessel extraction compared with the White light and NBI endoscopic image, 2016 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, No.13-38, 189, Sep. 2016.
70.	Hiroki Yoshimitsu, Shinsuke Konaka, Masaya Ohno, Masatake Akutagawa and Takahiro Emoto : A study on blood vessel extension using the directional similarity to the already extracted blood vessel by image processing, 2016 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, No.13-37, 188, Sep. 2016.
71.	Wataru Mima, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : A study of nMOS differential multistage amplifier, 2016 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers, No.9-9, 91, Sep. 2016.
72.	Akari Tsunedomi, Takaaki Shimohata, Sakie Nagata, Sachie Amano, Mutsumi Nakahashi, Yumi Harada, Takashi Uebanso, Kazuaki Mawatari, Katsuyuki Miyawaki, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi and Akira Takahashi : Campylobacter jejuni食中毒予防に対するUVA-LED照射殺菌の有用性について, 第37回日本食品微生物学会学術総会, Sep. 2016.
73.	Risa Nishisaka, Hitomi Watanabe, Kazuaki Mawatari, Mutsumi Nakahashi, Akari Tsunedomi, Takaaki Shimohata, Takashi Uebanso, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi and Akira Takahashi : 県内医療施設の透析液細菌汚染調査と近紫外LEDによる殺菌効果の評価, 第253回徳島医学会学術集会, Jul. 2016.
74.	Akari Tsunedomi, Takaaki Shimohata, Marin Gotoh, Sachie Amano, Mutsumi Nakahashi, 原田優美, Takashi Uebanso, Kazuaki Mawatari, Katsuyuki Miyawaki, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi and Akira Takahashi : UVA-LED殺菌システムによるCampylobacter jejuni食中毒の予防, 第70回日本栄養・食糧学会大会, May 2016.
75.	Mayu Uyama, Masahiro Sogabe, Hirata Misato, Tadahiko Nakagawa, Takaoka Yoshifumi, Tatsuya Taniguchi, Tetsuji Takayama, Takahiro Emoto, Masatake Akutagawa, Takaaki Shimohata, Takashi Uebanso, Kazuaki Mawatari, Akira Takahashi and Toshiya Okahisa : 胸腹水濾過濃縮再静注法の手技習得のための輸液製剤を用いた模擬腹水の作成, 第43回日本血液浄化技術学会学術大会, May 2016. (Keyword) 胸腹水濾過濃縮再静注法
76.	松岡史倫, Takahiro Emoto, Udantha R. Abeyratne, Toshiya Okahisa, Masahiro Sogabe, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : Estimating the bowel sound source from bowel sounds acquired by the electronic stethoscopes, 第55回日本生体医工学会大会 2016, Apr. 2016.
77.	合嶋裕樹, Takahiro Emoto, Toshiya Okahisa, Udantha R. Abeyratne, Masahiro Sogabe, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : 腹鳴による過敏性腸症候群の腸活動評価, 第55回日本生体医工学会大会 2016, Apr. 2016.
78.	Tatsunao Sueuchi, Masahiro Sogabe, Toshiya Okahisa, Takahiro Emoto and Tetsuji Takayama : 計算ストレス負荷試験時の腸蠕動音解析による過敏性腸症候群の診断, 第12回日本消化管学会総会学術集会, Feb. 2016.
79.	谷直也, Daiki Tanaka, Tatsunao Sueuchi, 高岡慶史, Tadahiko Nakagawa, Tetsuji Takayama, Masaki Kawano, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi, Takaaki Shimohata, Takashi Uebanso, Kazuaki Mawatari, Akira Takahashi, Mayu Uyama, Masahiro Sogabe and Toshiya Okahisa : イノベーション対話ツールを活用した腸蠕動音収集解析システムの開発, 第53回日本人工臓器学会大会, Nov. 2015.
80.	Daiki Tanaka, Naoya Tani, Masanori Takehara, Hironori Tanaka, Takahiro Tanaka, Tetsu Tomonari, Tatsuya Taniguchi, Tadahiko Nakagawa, Tetsuji Takayama, Masaki Kawano, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi, Takaaki Shimohata, Takashi Uebanso, Kazuaki Mawatari, Akira Takahashi, Mayu Uyama, Masahiro Sogabe and Toshiya Okahisa : 模擬腹水を用いた胸腹水濾過濃縮装置の評価・教育システムの構築, 第53回日本人工臓器学会大会, Nov. 2015.
81.	中川忠彦, Masahiro Sogabe, 岡崎潤, 松本早代, Shinji Kitamura, Koichi Okamoto, Hiroshi Miyamoto, Naoki Muguruma, Tetsuji Takayama, Takahiro Emoto, Masatake Akutagawa and Toshiya Okahisa : 腹水濾過濃縮再静注法の濾過工程の物理刺激が腹水中サイトカイン濃度に及ぼす影響第2報:培養癌細胞を用いた検討, 第36回日本アフェレシス学会学術総会, Oct. 2015.
82.	Masaki Kawano, Takahiro Emoto, Masatake Akutagawa, Mayu Uyama, Masahiro Sogabe, Tadahiko Nakagawa, Tetsuji Takayama, Takaaki Shimohata, Takashi Uebanso, Kazuaki Mawatari, Akira Takahashi, 村島徹, 出口喜宏, 荒巻広至 and Toshiya Okahisa : 腹水濾過濃縮法(CART)用装置の現状と今後, 第36回日本アフェレシス学会学術総会, Oct. 2015.
83.	Takuya Ishimoto, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi and Emiko Yasuno : Development of four-electrode bio-impedance measurement device using FPGA, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 219, Sep. 2015. (Summary) 4電極法を用いた生体インピーダンス測定装置の試作を行なった．測定の安定化を図るため回路にはFPGAを利用したロックインアンプを構成した．測定結果はPCに転送され表示・記録される．寒天を用いた生体等価ファントムを用いて検証を行なった結果，想定されるインピーダンス分布を得ることができた．
84.	美馬航, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : nMOS差動アンプの利得，遮断周波数の消費電流依存性について, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.9-13, 106, Sep. 2015.
85.	松本裕祐, Shinsuke Konaka, 大野雅也, Masatake Akutagawa and Takahiro Emoto : 血管輝度深さ補正を用いた血管幅対応フィルタによる血管抽出, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.13-39, 214, Sep. 2015.
86.	吉光陽紀, Shinsuke Konaka, 大野雅也, Masatake Akutagawa and Takahiro Emoto : 血管方向性を利用した血管抽出率向上の検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.13-14, 189, Sep. 2015.
87.	大野雅也, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 大腸内視鏡画像の血管/粘膜輝度分離によるしきい値抽出, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.13-3, 178, Sep. 2015.
88.	山西悠也, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : ピーキング用インダクタのばらつきを考慮したアンプ高周波化の検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.9-4, 97, Sep. 2015.
89.	清水椋介, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 一致率変化プロファイルを用いた自曲選別による楽音照合改善の検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.17-34, 267, Sep. 2015.
90.	Tetsuro Tokitani, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi and Shinsuke Konaka : Quantifying geometrical artifacts in MRI caused by a ferromagnetic metal, --- Comparison of measured images and simulated images ---, Proceedings of Life Engineering Symposium 2015, 254-258, Sep. 2015. (Summary) As the use of MRI spread, the effect of the metal artifact by the magnetic metal in the body has been problem. In the imaging of the head and neck, keepers of magnetic attachments often become a problem as artifacts by a ferromagnetic metal, and hamper diagnoses. Especially, effect of a magnetic attachment has been focused. Recently, magnetic attachment dentures have been widely used for elder people. The magnetic attachment consists of a magnetic assembly and a keeper. The keepers are fixed on teeth. The removal of the keeper is not only difficult but also the patient burden is heavy. The metal artifact occurs in MR images by magnetization of the keeper. The image diagnosis is hampered by artifact as signal loss and geometrical distortion. Aim of this study is to propose the index to represent the effect extent of metal artifact caused by a keeper. At present, the authors are able to obtain simulated MR images which has characteristics of metal artifacts in practical MRI using a computer simulation based on the magnetic dipole and MRI imaging principle. Simulated magnetic moment of the keeper is related to the effect on images. The moment can be calculated by the shape and material of the keeper. The authors quantified effect by the magnetized keeper in MRI, and compared those results in measured and simulated images. The artifact consists of intensity distortion and geometrical distortion. In this study, the authors focused on the artifact by geometrical distortion. The authors represented geometrical artifact using a mesh phantom, and quantified it each in measured and simulated images. As results of them, the difference of distortion in measured and simulated images was within about 2mm. Thus, a keeper in MRI can be treated as a magnetic dipole, the magnetic moment was confirmed useful for representing the effect of artifact by a keeper. (Keyword) MRI / metal artifact / magnetic attachment
91.	Risa Nishisaka, Kazuaki Mawatari, Akari Tsunedomi, Marin Gotoh, Akiko Uebanso, Takaaki Shimohata, Takashi Uebanso, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi, Yuki Kanemoto, Akio Murakami and Akira Takahashi : 近紫外線(ultrviolet-A)照射によるシアノバクテリア増殖抑制効果の解明, 第251回徳島医学会学術集会, Aug. 2015.
92.	川野憲市郎, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi, Shinsuke Konaka, 川田育二, Osamu Jinnouchi and Udantha R. Abeyratne : Fast neural network processing for detecting breathing sound recorded by microphone, 第54回日本生体医工学会大会抄録集, 239, May 2015.
93.	高岡慶史, Toshiya Okahisa, 岡崎潤, 岡田泰行, 松本早代, Tatsunao Sueuchi, 三井康裕, Yasuteru Fujino, Kumiko Tanaka, 藤本大策, Tetsuo Kimura, Shinji Kitamura, Hiroshi Miyamoto, Naoki Muguruma, 河野正樹, 難波和樹, 赤田茂甫規, Takahiro Emoto and Tetsuji Takayama : 過敏性腸症候群の客観的診断と病態評価のための腸音図システムの開発, 第101回日本消化器病学会総会, Apr. 2015.
94.	中川忠彦, Masato Katayama, Masahiro Sogabe, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi, Kumiko Tanaka, 髙岡遠, Tatsuya Taniguchi, Tetsuji Takayama, 荒巻広至, 山路諭, 田中善二 and Toshiya Okahisa : 腹水濾過濃縮再静注法のローラーポンプとフィルターによる物理的刺激が腹水中サイトカインと補体に及ぼす影響, 第52回日本人工臓器学会大会, Oct. 2014.
95.	太良尾浩生, Hiromichi Yumoto, Kouji Hirao, 富永敏彦, 坂東直樹, 高比良一輝, Takahiro Emoto, Masatake Akutagawa, Toshitaka Ikehara, Takashi Matsuo and Yohsuke Kinouchi : 電磁波照射による骨芽細胞培養培地内の電流密度分布とVEGF産生との関連, 第37回日本生体医工学会中国四国支部大会, Oct. 2014.
96.	Hiromichi Yumoto, Kouji Hirao, 富永敏彦, Naoki Bandoh, 高比良一輝, 太良尾浩生, Takahiro Emoto, Masatake Akutagawa, Toshitaka Ikehara, Takashi Matsuo and Yohsuke Kinouchi : 電磁波照射による骨芽細胞の活性化と成長因子の発現・産生誘導, 第37回生体医工学会中国四国支部大会, Oct. 2014.
97.	中川忠彦, 田中宏典, 岡崎潤, Kumiko Tanaka, 田中貴大, 髙岡遠, Tetsu Tomonari, Tatsuya Taniguchi, Hiroshi Miyamoto, Tetsuji Takayama, Masahiro Sogabe, Takahiro Emoto, Masatake Akutagawa, Hiroshi Shibata, 矢野充保, 岸史子, 大喜田義雄, 山路諭, 田中善二 and Toshiya Okahisa : 腹水濾過濃縮再静注法の濾過工程の物理刺激が腹水中サイトカイン濃度に及ぼす影響, 第35回日本アフェレシス学会学術大会, Sep. 2014.
98.	Minghu Huangfu, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 輝度情報を利用した細胞核抽出法の改良の再検討, 生体医工学シンポジウム2014, No.2A-14, Sep. 2014.
99.	野中亮, Takahiro Emoto, Udantha R. Abeyratne, Osamu Jinnouchi, 川田育二, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : いびき音解析に用いる睡眠音分類法の開発, ライフエンジニアリング部門シンポジウム2014論文集, 333-334, Sep. 2014.
100.	川野憲市郎, Takahiro Emoto, Udantha R. Abeyratne, Masatake Akutagawa, Osamu Jinnouchi, 川田育二, Shinsuke Konaka and Yohsuke Kinouchi : Speed up neural network based technique for breathing sounds detection, ライフエンジニアリング部門シンポジウム2014論文集, 331-332, Sep. 2014.
101.	西森皓祐, Takahiro Emoto, Masatake Akutagawa, Udantha R. Abeyratne, Yohsuke Kinouchi and Shinsuke Konaka : ニューラルネットワークを用いたシステムの非線形度推定法に関する基礎的検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-12, 240, Sep. 2014.
102.	川野憲市郎, Takahiro Emoto, Udantha R. Abeyratne, 川田育二, Osamu Jinnouchi, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : ニューラルネットワークの汎化能力を利用した有音区間検出法高速化の提案, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-6, 234, Sep. 2014.
103.	多田亜梨沙, Masatake Akutagawa, Takahiro Emoto, Shigeru Obara, Kazuo Yoshizaki, Akihiro Inagaki, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Shinsuke Konaka and Yohsuke Kinouchi : 超音波ドプラ法を用いた血流速度測定装置のディジタル化に関する検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-13, 241, Sep. 2014. (Summary) 頸動脈血流速度波形を測定することによって動脈硬化の程度など循環器系の様々な状態を知ることができることがわかってきた．小型血流速度測定装置が普及すると日常的に循環器の状態を測定することができるようになり，健康長寿社会へも繋げることもできるかもしれない．そのためには低雑音で扱いの容易な測定装置の開発が必須である．本研究ではFPGAなどのディジタル回路を用いて回路の主要部分再設計し，低雑音の測定装置の開発を試みた．
104.	矢野佑樹, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Shinsuke Konaka, Yohsuke Kinouchi, Takaaki Shimohata, Akira Takahashi and Emiko Yasuno : 有限要素法を用いたマウス腸管のインピーダンス測定方法の検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-10, 238, Sep. 2014. (Summary) クローン病などの腸の疾患で腸管の電気インピーダンスが健常者と有病者とで異なることが知られている．本研究では電気インピーダンスを用いた腸疾患の診断を目的として，マウスの腸管インピーダンスを測定する際の電極形状について，有限要素法を用いて基礎研究を行っている．
105.	木内敬浩, Masatake Akutagawa, Takahiro Emoto, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : ニューラルネットワークを用いた非線形システム解析に統計的手法を取り入れた評価法, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-9, 237, Sep. 2014. (Summary) 生体は複雑系システムの一種と考えられ，生体から得られる脳波などの生体信号は複雑な特性を持っている．そこで非線形システムから得られたカオス的な時系列信号を解析することにより，システムの内部状態の変化を指標化する手法について検討している．本研究では非線形システムとして池田写像を用い，モデリングに多層ニューラルネットワークを用いて，ニューラルネットワークの結合荷重ベクトルを次元圧縮の後に指標化している．またこれらの指標の変化に対して，統計的検定法を導入し，より容易にシステムの変化を評価することを試みている．
106.	工藤伸, Masatake Akutagawa, Yoshinori Tegawa, Takahiro Emoto, Shinsuke Konaka and Yohsuke Kinouchi : 磁気センサを用いた嚥下運動に伴う咽頭運動評価, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-8, 236, Sep. 2014. (Summary) 嚥下障害のスクリーニング検査にはRSST(repetitive saliva swallowing test)が広く用いられている．測定用の機器が必要ないため，簡易的に実施することが可能であるが，術者の主観的な感覚によるところがあり，より客観的な検査法あるいは検査器具が必要とされている．そこで磁気センサを用いて喉頭隆起部の運動を測定することにより，RSSTの補助あるいは代替法の開発を目指している．本研究は磁気センサだけでなく画像処理，嚥下音も同時に測定することにより，磁気を用いた測定の評価，改善について検討している．
107.	Eiji Kondo, Yuya Nakahira, Takahiro Emoto, Masatake Akutagawa, Takahiro Emoto, Yoshio Kaji, Hirofumi Nagashino, Fumio Shichijo, Kazuhiko Furukawa, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : Hilbert Huang Coherenceの時間分解能について, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 235, Sep. 2014. (Summary) 脳波の測定・解析についてポリリズムタッピングのような運動の誘発電位は，多数の領野にまたがって短時間で狭帯域の同期現象が見られることが知られている．これらを指標化する方法としてCoherenceが用いられてきたが，高い時間分解能と周波数分解能を得ることは困難であった．本研究ではHilbert Huang変換を利用したcoherenceを提案し，時間分解能について検討している．
108.	Ryuki Osaki, Masatake Akutagawa, Takahiro Emoto, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : 測定電極数および配置法の違いが脳内信号源推定精度に与える影響についての検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 232, Sep. 2014. (Summary) 脳波を用いて精度良い信号源推定を行うためには空間分解能を確保するために多数の電極を用いると良いとされ，200個を超えるような電極を用いる製品もある．一方，信号源の位置があらかじめある程度わかっている場合，より少数の電極で，精度良く信号源推定を行うことができると期待できる．そこでLELESと呼ばれる独自の電極配置を提案し，電気刺激時に感覚野に現れるSEPを測定し，信号源推定を試みている．
109.	Teppei Hoshiyama, Masatake Akutagawa, Takahiro Emoto, Mutsumi Nakahashi, Marhio Hayashida, Akira Takahashi, Kazuaki Mawatari, Toshitaka Ikehara, Shinsuke Konaka and Yohsuke Kinouchi : UV及び可視光照射に対する腸炎ビブリオの遺伝子発現解析, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-1, 229, Sep. 2014. (Summary) 腸炎ビブリオを紫外線および可視光に曝露した際，遺伝子発現がどのように変化するかについて，遺伝子チップを用いて網羅的に実験・解析を行っている．その結果，UV-A領域の光を照射した際，酸化修復に関する遺伝子の働きが抑えられること，緑色の光を照射した際に鞭毛関連の遺伝子が活性化することなどが示された．
110.	河野正樹, Takahiro Emoto, Toshiya Okahisa, Masahiro Sogabe, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : S状結腸の電気的活動シミュレーション, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-3, 231, Sep. 2014.
111.	原田圭章, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 楽音特徴照合結果に対する位置一致の検証, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.19-33, 293, Sep. 2014.
112.	大野雅也, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 大腸内視鏡画像の血管/粘膜輝度分離によるしきい値抽出, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.13-48, 228, Sep. 2014.
113.	山西悠也, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : バンドパス型ピーキング導入によるアンプ高周波化の検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.9-12, 109, Sep. 2014.
114.	清水椋介, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 一致率変化プロファイルを用いた楽音照合法改善の検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.19-32, 292, Sep. 2014.
115.	尾崎敬太, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 細線化血管特徴値による大腸炎病態評価について, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.13-47, 227, Sep. 2014.
116.	Teppei Hoshiyama, Masatake Akutagawa, Takahiro Emoto, Mutsumi Nakahashi, Marhio Hayashida, Akira Takahashi, Kazuaki Mawatari, Toshitaka Ikehara, Shinsuke Konaka and Yohsuke Kinouchi : Gene expression analysis of Vibrio parahaemolyticus for the light irradiation, IEICE Technical Report (MBE), Vol.114, No.154, 19-24, Jul. 2014. (Summary) Effect of the light irradiation brings to the bacteria has been reported. For example, the sterilizing effect is obtained by the ultraviolet (UV) irradiation. Bacteria is known that they have photoreceptors in the visible light irradiation. Thus, it seems that effect of light irradiation depends on their wavelength. In this study, gene expression analysis was performed against Vibrio parahaemolyticus in order to elucidate the effect of the difference in wavelengths. As a result of them, Flagellar migration function of Vibrio parahaemolyticus was activated when it was irradiated with light of 520nm in wavelength. (Keyword) Light irradiation / Wavelength dependency / Gene expression analysis / Vibrio parahaemolyticus
117.	Eiji Kondo, Yuya Nakahira, Masatake Akutagawa, Takahiro Emoto, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : Synchronization Analysis using the Hilbert Huang Coherence, IEICE Technical Report (MBE), Vol.114, No.154, 7-12, Jul. 2014. (Summary) In previous studies, the Hilbert Huang Coherence(HHC) for analyzing the degree of synchronization by using a Hilbert Huang transform with high temporal frequency resolution has been proposed. In this study, we intended to verify the effectiveness of the HHC. It was found that temporal frequency resolution of HHC is higher than that of traditional coherence analysis for non-stationary signals. Furthermore, the HHC was applied to EEG analysis. As results of them, the change of coherence in $alpha$ band was obtained higher temporal frequency resolution than that of traditional coherence analysis. (Keyword) electroencephalogram / Empirical Mode Decomposition / Hilbert Huang Transform / Coherence
118.	Ryuki Osaki, Masatake Akutagawa, Takahiro Emoto, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : Influence of the placement and the number of electrodes on precision of EEG source localization, --- Comparison of international 10-20 electrode system and Eccentrically- Located Electrode System ---, IEICE Technical Report (MBE), Vol.114, No.154, 13-18, Jul. 2014. (Summary) The brain generates homeostatic evoked potentials by a variety of external stimuli. These evoked potentials support various medical diagnosis by detecting abnormal electroencephalogram(EEG) and monitoring of brain function during surgery. However, its spatial resolution is restricted because EEG is distributed on by the skull and scalp. In this study, we performed source localization by international 10–20 electrode system and LELES, and the results were compared. Variation of the results is small in the simulation using LELES. In addition, experiments to estimate sources of somatosensory evoked potential(SEP) were carried out. The result shows estimated sources are appropriate. (Keyword) electroencephalogram / International 10-20 system / Source localization
119.	大塚加奈子, Toshiya Okahisa, Tetsuji Takayama, 香川美和子 and Takahiro Emoto : 腸蠕動音解析による非侵襲的腸運動機能評価に基づく過敏性腸症候群の診断と治療, 第10回日本消化管学会学術集会, Feb. 2014.
120.	Kosuke Nishimori, Takahiro Emoto, Udantha R. Abeyratne, Ikuji Kawata, Masatake Akutagawa, Yohsuke Kinouchi and Shinsuke Konaka : ニューラルネットワークによる非線形度推定法, 第28回信号処理シンポジウム, 487-488, Nov. 2013.
121.	Masato Kashihara, Takahiro Emoto, Udantha R. Abeyratne, Ikuji Kawata, Masatake Akutagawa, Yohsuke Kinouchi and Shinsuke Konaka : 振幅情報に基づくいびき音ー呼吸音分類, 第28回信号処理シンポジウム, 259-260, Nov. 2013.
122.	Mario Hayashida, Mutsumi Aihara, Takashi Uebanso, Takaaki Shimohata, Kazuaki Mawatari, Akira Takahashi, Teppei Hoshiyama, Masatake Akutagawa, Takahiro Emoto and Yohsuke Kinouchi : 紫外線・可視光照射により変動する微生物遺伝子の網羅的解析, 第66回日本細菌学会中国・四国支部総会, Oct. 2013.
123.	Takahiro Kinouchi, Masatake Akutagawa, Takahiro Emoto, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : Study on analysis of nonlinear system using neural networks, 2013 Shikoku-section Joint Convention Record of the Institutes of Electrical and Related Engineers, 250, Sep. 2013. (Summary) 生体は複雑系システムの一種と考えられ，生体から得られる脳波などの生体信号は複雑な特性を持っている．そこで非線形システムから得られたカオス的な時系列信号を解析することにより，システムの内部状態の変化を指標化する手法について検討している．本研究では非線形システムとしてLorentz mapを用い，モデリングに多層ニューラルネットワークを用いてシステム状態の指標化を試みている．指標化には多層ニューラルネットワークの結合荷重を用いるが，PCAを用いてベクトル間の距離を算出している．
124.	Shin Kudo, Masatake Akutagawa, Yoshinori Tegawa, Takahiro Emoto, Shinsuke Konaka and Yohsuke Kinouchi : Swallowing measurement system using MI sensors with reduced influence of the geomagnetic, 2013 Shikoku-section Joint Convention Record of the Institutes of Electrical and Related Engineers, 247, Sep. 2013. (Summary) 嚥下障害のスクリーニング検査にはRSST(repetitive saliva swallowing test)が広く用いられている．測定用の機器が必要ないため，簡易的に実施することが可能であるが，術者の主観的な感覚によるところがあり，より客観的な検査法あるいは検査器具が必要とされている．そこで磁気センサを用いて喉頭隆起部の運動を測定することにより，RSSTの補助あるいは代替法の開発を目指している．本研究は測定時に重畳する地磁気の影響を抑制する方法について検討している．
125.	Ryuki Osaki, Masatake Akutagawa, Takahiro Emoto, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : Improvement of precision of EEG source localization using Eccentrically-Located Electrode System, 2013 Shikoku-section Joint Convention Record of the Institutes of Electrical and Related Engineers, 242, Sep. 2013. (Summary) 脳波を用いて精度良い信号源推定を行うためには空間分解能を確保するために多数の電極を用いるのが効果的とされている．2一方，信号源の位置があらかじめある程度わかっている場合，より少数の電極で，精度良く信号源推定を行うことができると期待できる．そこでLELESと呼ばれる独自の電極配置を提案し，電気刺激時に感覚野に現れるSEPを測定し，信号源推定を試みている．
126.	尾崎敬太, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 血管画像抽出における反射領域除去法の検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.13-15, 206, Sep. 2013.
127.	原田圭章, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 演奏開始点を用いる楽音照合の問題点について, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.15-4, 256, Sep. 2013.
128.	Hideyasu Endo, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 入力と出力にピーキング型負荷を用いたアンプ広帯域化の検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.9-11, 110, Sep. 2013.
129.	Minghu Huangfu, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 輝度情報を利用した細胞核抽出法の改良, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.13-16, 207, Sep. 2013.
130.	Teppei Hoshiyama, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi, Mutsumi Aihara, Mario Hayashida and Akira Takahashi : Gene expression analysis of Vibrio parahaemolyticus against UV irradiation, 2013 Shikoku-section Joint Convention Record of the Institutes of Electrical and Related Engineers, 252, Sep. 2013. (Summary) 腸炎ビブリオを紫外線に曝露した際，遺伝子発現がどのように変化するかについて，遺伝子チップを用いて網羅的に実験・解析を行っている．UV-A，UV-B，UV-Cそれぞれの代表的な波長について，腸炎ビブリオにUV照射した後に解析を行い，各波長ごとの遺伝子発現の違いについて調査した．
131.	Ishizaki Masachika, Masatake Akutagawa, Akira Takahashi, Yohsuke Kinouchi, Takahiro Emoto, Toshitaka Ikehara and Shinsuke Konaka : Derivation of the model equation, that represent sterilization transition of UV-A, 2013 Shikoku-section Joint Convention Record of the Institutes of Electrical and Related Engineers, 245, Sep. 2013. (Summary) UV-Aを用いた殺菌について，UV-A照射量と菌数の関係を表すモデル式を提案し，実験結果と比較している．実験は150uL，0.7L，100Lの各容量のプレートおよびステンレスタンクについて，大腸菌を一定濃度で入れた菌液を用いて近紫外線を照射して菌数の時間的推移を測定した．その結果，菌数の時間推移の傾向をモデル式で表すことができた．
132.	Takahiro Hirano, Masatake Akutagawa, Takahiro Emoto, Shigeru Obara, Kazuyoshi Kitaoka, Yohsuke Kinouchi, Hiroyuki Tanaka, Shinsuke Konaka and Yohsuke Kinouchi : Study on sound pressure distribution of blood flow velocity in carotid artery, 2013 Shikoku-section Joint Convention Record of the Institutes of Electrical and Related Engineers, 243, Sep. 2013. (Summary) 頸動脈の血流速度波形は動脈硬化など循環器系の状態を表していることがわかっている．従来，血流速度の評価に用いているのは動脈内の最大血流速度を反映していると考えられる時間波形であるが，動脈内の速度分布は時々刻々変化しているにもかかわらず，評価には反映されていない．そこで超音波ドプラ法を用いた頸動脈測定時に測定結果に血流速度分布がどのように影響するかについて，計算機シミュレーションを用いて検討している．
133.	Tomoya Takahashi, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi, Tadaoki Morimoto, Akira Tangoku, Kenji Okazaki and Emiko Yasuno : Study of a measurement device for bioelectrical impedance using multi-electrode and lock-in amplifier, 2013 Shikoku-section Joint Convention Record of the Institutes of Electrical and Related Engineers, 239, Sep. 2013. (Summary) 生体の電気インピーダンスは組織の状態により異なる値を示すことが知られている．乳がんの診断支援に応用した場合，非侵襲で対象組織の悪性，良性の区別をすることができる可能性がある．一方，生体インピーダンスを皮膚表面から測定する場合には，測定信号のSNRが小さいことが多く，測定が困難である．そこで耐雑音性に優れるロックインアンプを製作し，測定の安定化を図った．
134.	Iwami Seiji, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi, Tadaoki Morimoto, Akira Tangoku, Kenji Okazaki, Emiko Yasuno and Tomoya Takahashi : Study for the electrode arrangement of the impedance measureing device in consideration of the variation of the biological tissue impedance, 2013 Shikoku-section Joint Convention Record of the Institutes of Electrical and Related Engineers, 238, Sep. 2013. (Summary) 生体の電気インピーダンスは組織の状態により異なる値を示すことが知られている．乳がんの診断支援に応用した場合，非侵襲で対象組織の悪性，良性の区別をすることができる可能性がある．一方，生体インピーダンスを皮膚表面から測定する場合，電流が拡散するため局所的な腫瘍組織のインピーダンスを測定することが困難である．そこで複数の電極対を切り替えることにより標的とする領域のインピーダンスを測定することを試みている．
135.	Sasake Yohei, Masatake Akutagawa, Yoshinori Tegawa, Takahiro Emoto, Shinsuke Konaka and Yohsuke Kinouchi : Evaluation for MRI Metal Artifact by Ferromagnetic Dental Alloys, 2013 Shikoku-section Joint Convention Record of the Institutes of Electrical and Related Engineers, 237, Sep. 2013. (Summary) 磁性アタッチメントのキーパーなど，強磁性体が口腔内に留置されることがある．このような場合頭部のMRIを撮像する際，金属アーチファクトが発生し，診断の妨げになる場合がある．本研究では金属アーチファクトの強さを表す指標を提案し，計算機シミュレーションを用いて妥当性を検証している．
136.	野中亮, Takahiro Emoto, Udantha R. Abeyratne, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : 雑音環境下における頑健な基本周波数推定法の基礎的検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 251, Sep. 2013.
137.	樫原雅人, Takahiro Emoto, Udantha R. Abeyratne, Masatake Akutagawa, Yohsuke Kinouchi and Shinsuke Konaka : 振幅情報を用いた調波構造の検出, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 249, Sep. 2013.
138.	赤田茂甫規, Takahiro Emoto, Toshiya Okahisa, Udantha R. Abeyratne, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : ストレス負荷試験時における腸音解析の基礎検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 244, Sep. 2013.
139.	難波和樹, Takahiro Emoto, Toshiya Okahisa, Udantha R. Abeyratne, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : 薬剤投与下における腸音解析の基礎的検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 248, Sep. 2013.
140.	西森皓祐, Takahiro Emoto, Udantha R. Abeyratne, Yohsuke Kinouchi and Shinsuke Konaka : ニューラルネットワークを用いた非線形度推定法に関する基礎的検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 246, Sep. 2013.
141.	Mario Hayashida, Mutsumi Aihara, Takaaki Shimohata, Takashi Uebanso, Kazuaki Mawatari, Akira Takahashi, Teppei Hoshiyama, Takahiro Emoto, Masatake Akutagawa and Yohsuke Kinouchi : DNA マイクロアレイを用いた微生物遺伝子の網羅的解析, 第247回徳島医学会学術集会, Aug. 2013.
142.	Masatake Akutagawa, Nakahira Yuya, Takahiro Emoto, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : Analysis of EEG synchronization during bimanual tapping using the Hilbert-Huang transform, IEICE Technical Report (MBE), Vol.113, No.147, 27-32, Jul. 2013. (Summary) Activities of the supplementary motor area are synchronized to that of the primary motor cortex during complicated bimanual action. In this study, an evaluation method, called Hilbert Huang Coherence, to represent degree of synchronization among multiple signal are proposed. The proposed method is based on the empirical mode decomposition and the Hilbert Huang Transform. The advantages of the method is high resolution in both time domain and frequency domain. Applicability for signals from simple unstable model is confirmed. Furthermore, we apply the method to EEG of multiple electrodes during in phase tapping as simple task and polyrythmic tapping as complex task. However difference between these tasks was not observed. (Keyword) electroencephalogram / Empirical Mode Decomposition / Hilbert Huang Transform / Polyrythmic tapping / Coherence (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520853834114624768 (CiNii: 1520853834114624768)
143.	Kinouchi Yoshihiro, Masatake Akutagawa, Takahiro Emoto, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : Analysis of state change of nonlinear systems using neural networks : Analysis of the connection weights by principal component analysis, IEICE Technical Report (MBE), Vol.113, No.147, 33-36, Jul. 2013. (Summary) Nonlinearity is one of the significant factor to characteristics of a living body because it is a nonlinear system.The use of neural networks (NN) to analyze the non-linear system, a method to capture the state of nonlinear systems has been reported.However, when applied to EEG this method, a relatively large network is required to model the EEG.The purpose of this study is to propose a method to capture the state changing from obtain signals using weight space analysis of neural networks. In this research, in order to catch the state a known nonlinear system as a simulation of a living body system. The logistic map is used to confirm the applicability of proposed method. In this study, the Principal Component Analysis(PCA) is carried out to clarify the change of weight vectors. As results of computer simulation, change of parameters is successfully captured. (Keyword) neural network / nonlinear systems / PCA (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520853832296266624 (CiNii: 1520853832296266624)
144.	高岡遠, Toshiya Okahisa, 香川美和子, 岡田泰行, 宮本佳彦, 田中貴大, 津田美穂, 友成哲, Takahiro Goji, Hiromi Yano, Shinji Kitamura, Koichi Okamoto, Hiroshi Miyamoto, Naoki Muguruma, Tetsuji Takayama and Takahiro Emoto : 腸蠕動音測定による簡便かつ非侵襲的腸運動機能評価法の確立, 第9回日本消化管学会総会学術集会, Jan. 2013.
145.	Takahiro Emoto, Udantha R. Abeyratne, Yongjian Chen, Ikuji Kawata, Masatake Akutagawa, Yohsuke Kinouchi and Shinsuke Konaka : ニューラルネットワークによる低SNRのいびき，呼吸音の検出, 第35回日本生体医工学会中国四国支部大会講演抄録, 11, Oct. 2012.
146.	Takuto Inoko, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi, Tadaoki Morimoto, Akira Tangoku, Kenji Okazaki, Emiko Yasuno, Tomoya Takahashi and Seiji Iwami : 生体インピーダンスを用いた腫瘍の質的診断のための電極配置の検討, 第35回日本生体医工学会中国四国支部大会講演抄録, 17, Oct. 2012. (Summary) 生体の電気インピーダンスは組織の状態により異なる値を示すことが知られている．乳がんの診断支援に応用した場合，非侵襲で対象組織の悪性，良性の区別をすることができる可能性がある．一方，生体インピーダンスを皮膚表面から測定する場合，電流が拡散するため局所的な腫瘍組織のインピーダンスを測定することが困難である．そこで複数の電極対を切り替えることにより標的とする領域のインピーダンスを測定することを試み，計算機シミュレーションにより電極の切り替え法について検討した．
147.	Yi Yang, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : Design of Cognitive Engine for Cognitive Radio basing on PSO and Data Base, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 188, Sep. 2012. (Summary) Cognitive radio is viewed as a novel approach for improving utilization of numerous new capabilities such as dynamic spectrum access, spectrum markets, and self-organizing networks. Cognitive engine is the brain of a cognitive radio system. This article is focus on cognitive engine design basing on Particle Swarm Optimization. And be improved by adding data base in it.
148.	Kaliba Aggrey, Masatake Akutagawa, Yoshinori Tegawa, Yohsuke Kinouchi and Takahiro Emoto : Elevation on the retention force of a Cup-yoke type magnetic attachment, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 266, Sep. 2012. (Summary) 歯科領域で，磁性アタッチメントは支台歯への影響が少ないなどの特徴から欠損歯への有効な補綴法として広く使われている．磁性アタッチメントに要求される特性として，維持力が大きく，キーパーとの隙間ができても吸引力が低下しないというものがある．そこで従来から使われているカップヨーク型磁性アタッチメントの復元力特性について，有限要素法を用いた磁界解析を用いて検討した．
149.	Yohei Sasaki, Masatake Akutagawa, Hideyuki Samejima, Yoshinori Tegawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi and Takuya Ikemoto : A theoretical study of MRI artifact by ferromagnetic dental alloys, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 266, Sep. 2012. (Summary) 磁性アタッチメントのキーパーによるMRI金属アーチファクトを，計算機シミュレーションを用いて理論的に検討した．キーパーを磁気モーメントしてMRI撮像時の磁界分布を計算し，アーチファクトを再現することを試み，実画像で現れる傾向と類似していることを確認した．
150.	Masachika Ishizaki, Masatake Akutagawa, Yohsuke Kinouchi, Takahiro Emoto, Shinsuke Konaka, Akira Takahashi and Toshitaka Ikehara : Modeling of sterilization using UV-A, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 265, Sep. 2012. (Summary) UV-Aを用いた殺菌について，UV-A照射量と菌数の関係を表すモデル式を提案し，実験結果と比較している．0.7Lステンレスタンクについて，大腸菌を一定濃度で入れた菌液を用いて近紫外線を照射して菌数の時間的推移を測定した．その結果，菌数の時間推移の傾向をモデル式で表すことができた．
151.	Koichi Shono, Takahiro Emoto, Toshiya Okahisa, Udantha R. Abeyratne, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : Bowel sound detection by formant frequency, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 264, Sep. 2012.
152.	Seiji Shima, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi, Udantha R. Abeyratne, Eiji Kondo, Ikuji Kawata and Tomoaki Hashimoto : Snore analysis for the diagnosis of sleep apnea, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 263, Sep. 2012.
153.	Masato Kashihara, Takahiro Emoto, Udantha R. Abeyratne, Eiji Kondo, Ikuji Kawata, Masatake Akutagawa, Yohsuke Kinouchi and Shinsuke Konaka : Fundamental examination of sleep sounds classification using amplitude information, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 262, Sep. 2012.
154.	Takuto Inoko, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi, Tadaoki Morimoto, Akira Tangoku, Kenji Okazaki, Emiko Yasuno, Tomoya Takahashi and Seiji Iwami : Examination of qualitative diagnosis of tumors by measurement of the bioelectrical impedance, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 261, Sep. 2012. (Summary) 生体の電気インピーダンスは組織の状態により異なる値を示すことが知られている．乳がんの診断支援に応用した場合，非侵襲で対象組織の悪性，良性の区別をすることができる可能性がある．皮膚表面の電極ついに一定電圧を印加し，腫瘍部分のインピーダンスの推定が可能かについて有限要素法により検討した．その結果，皮膚表面に現れる電圧分布の差異は非常に小さく，インピーダンス推定が非常に困難であることが示された．
155.	Tomoya Takahashi, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi, Tadaoki Morimoto, Akira Tangoku, Kenji Okazaki and Emiko Yasuno : Development of a bioelectrical impedance device with multiple electrodes, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 260, Sep. 2012. (Summary) 生体の電気インピーダンスは組織の状態により異なる値を示すことが知られている．乳がんの診断支援に応用した場合，非侵襲で対象組織の悪性，良性の区別をすることができる可能性がある．多電極の生体インピーダンス測定装置を試作し，大腿部のインピーダンスの測定を行い，有用性を検証した．
156.	Seiji Iwami, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi, Tadaoki Morimoto, Akira Tangoku, Kenji Okazaki, Emiko Yasuno, Takuto Inoko and Tomoya Takahashi : Study of multi-electrode impedance measureng device of using a biological tissue equivalent circuit simulation, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 259, Sep. 2012. (Summary) 生体の電気インピーダンスは組織の状態により異なる値を示すことが知られている．乳がんの診断支援に応用した場合，非侵襲で対象組織の悪性，良性の区別をすることができる可能性がある．3パラメータの2次元生体組織回路網モデルを構築し，組織内の電流分布を解析した．電流電極を切り替える事で，電流の流れる層が変化する事や，電圧変化があることを示した．
157.	Hiroki Tenmoto, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi and Yuichi Kogure : The extensions of the patient information monitoring system using the handheld unit, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 258, Sep. 2012. (Summary) スマートフォンなどの携帯端末の普及によりICU/CCU内の生体モニタの情報をインターネットを介して閲覧できるようになってきた．従来から構築してきた患者情報モニタリングシステムについて，ユーザ認証システムを導入し，セキュリティ強化をはかった．
158.	Motoshi Masuda, Masatake Akutagawa, Tomoki Kitawaki, Shigeru Obara, Hiroyuki Tanaka, Kazuo Yoshizaki, Kazuyoshi Kitaoka, Takahiro Emoto, Shinsuke Konaka and Yohsuke Kinouchi : Evaluation of blood flow velocity patterns in common carotid artery using multi-branched arterial segment model of human arteries, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 257, Sep. 2012. (Summary) 総頸動脈血流速度波形と動脈弾性の関係について，1次元流体解析モデルを用いて検討している．動脈モデルはヒトの全身の主要な動脈を多枝セグメントモデルとして構築したものを用い，動脈弾性を変化させた時の総頸動脈の血流速度波形を求めた結果，動脈弾性の変化により血流速度波形が変化することを示した．これにより総頸動脈の血流速度波形を調べることにより動脈硬化を評価することができる可能性を示した．
159.	Takahiro Hirano, Motoshi Masuda, Shota Minato, Masatake Akutagawa, Takahiro Emoto, Shigeru Obara, Kazuo Yoshizaki, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Shinsuke Konaka and Yohsuke Kinouchi : Relationship of artery elesticity index and gender difference using carotid blood flow velocity waveforms, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 256, Sep. 2012. (Summary) 波形から自動抽出可能な動脈弾性指標の提案を目的とし，評価の妥当性を確認するため，血流速度と CAVI の測定を行い，提案した指標と CAVI の関係を調べた．また，動脈は加齢により硬化する事や，男性に比べ閉経前の女性は軟らかい事から，提案した指標と年齢の関係や性差について調べた．
160.	Shota Minato, Masatake Akutagawa, Takahiro Emoto, Shigeru Obara, Hiroyuki Tanaka, Kazuo Yoshizaki, Kazuyoshi Kitaoka, Shinsuke Konaka and Yohsuke Kinouchi : Study on automatic threshold selection of blood flow velocity extraction in carotid artery, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 255, Sep. 2012. (Summary) 頸動脈血流速度波形は動脈硬化等の循環器系の状態を反映しており，容易に測定し被測定者に提示することができれば，循環器系疾患の予防・早期発見に繋がる可能性がある．このため，小型頸動脈血流速度の測定装置を開発してきた．従来は測定者が血流速度波形抽出の為に手動でドプラ信号スペクトルの閾値を決定しなければならず，より客観的かつ，自動的な血流速度波形の抽出法の開発が望まれていた．そこで，閾値の自動選択手法について提案し，検討を行った．
161.	Kyung-Hwa Kim, Makoto Shigeta, Takahiro Emoto, Masatake Akutagawa, Yoshio Kaji, Kazuhiko Furukawa, Fumio Shichijo, Hirofumi Nagashino and Yohsuke Kinouchi : The study on the auditory recall by phase analysis, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 253, Sep. 2012. (Summary) 聴覚刺激想起時に現れる事象関連電位について，試行間位相コヒーレンス(Inter traial phase coherence, ITPC)を用いて解析を行っている．その結果，被験者に実際に聴覚刺激を提示して刺激を知覚した時と，刺激がないにもかかわらず刺激を知覚した際は，デルタ波帯域においてよく似たITPCを示すことがわかった．
162.	Yukitoshi Yoshida, Masatake Akutagawa, Takahiro Emoto, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa, Hirofumi Nagashino and Yohsuke Kinouchi : A study on the extraction of event-related potential averaging with the wavelet denoising, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 252, Sep. 2012. (Summary) 事象関連電位を抽出する際，Wavlet変換を利用してノイズ除去を行う手法について提案した．可能な限り加算回数が少ないことが理想的であり，提案法を用いると加算回数が少なくてもERP波形のピークの確認が容易となることを示した．
163.	Yuya Nakahira, Takahiro Emoto, Masatake Akutagawa, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : EEG phase synchronization during polyrhythm tapping, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 251, Sep. 2012. (Summary) 両手で拍が一致しないポリリズムの両手協調動作では，その振動数比がより簡単な整数比に引き込まれる相転移が生じ，両手のリズム運動を維持できない場合がある．そこで両手のポリリズム運動時と，単純な両手同時運動時の電極間コヒーレンスを計算し，その違いについて検討した．
164.	Hideatzu Sudo, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : ワイヤーボンディングとフリップチップ実装の高周波特性比較, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.9-19, 137, Sep. 2012.
165.	Minghu Huangfu, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 目視抽出細胞核座標の補正について, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.13-37, 249, Sep. 2012.
166.	Hideyasu Endo, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 入力にピーキング型負荷を用いたアンプ広帯域化の検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.9-8, 126, Sep. 2012.
167.	Shota Minato, Motoshi Masuda, Masatake Akutagawa, Takahiro Emoto, Shigeru Obara, Kazuo Yoshizaki, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Shinsuke Konaka and Yohsuke Kinouchi : 頚動脈血流速度波形抽出の自動化に関する研究, 平成24年電気学会電子・情報・システム部門大会, 1104-1108, Sep. 2012. (Summary) 頸動脈血流速度波形は動脈硬化等の循環器系の状態を反映しており，容易に測定し被測定者に提示することができれば，循環器系疾患の予防・早期発見に繋がる可能性がある．このため，小型頸動脈血流速度の測定装置を開発してきた．従来は測定者が血流速度波形抽出の為に手動でドプラ信号スペクトルの閾値を決定しなければならず，より客観的かつ，自動的な血流速度波形の抽出法の開発が望まれていた．そこで，閾値の自動選択手法について提案し，検討を行った．
168.	Shinsuke Konaka, Kanno Ryouta, Toshiya Okahisa, Masatake Akutagawa and Takahiro Emoto : 大腸内視鏡血管画像抽出法の改良, 第34回日本生体医工学会中国四国支部大会講演抄録, Vol.V (24), 50, Oct. 2011.
169.	Yukitoshi Yoshida, Masatake Akutagawa, Takahiro Emoto, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : 刺激注意時の聴覚誘発電位の発生機構に関する基礎的検討, 第34回日本生体医工学会中国四国支部大会講演抄録, 23, Oct. 2011. (Summary) 事象関連電位を抽出する際，Wavlet変換を利用してノイズ除去を行う手法について提案した．可能な限り加算回数が少ないことが理想的であり，提案法を用いると加算回数が少なくてもERP波形のピークの確認が容易となることを示した．ただしピークの潜時，ピーク振幅が変化するためさらなる検討が必要である．
170.	CISSE S.A Tidiane, Masatake Akutagawa, Takahiro Emoto, Youssouf Cisse, Yohsuke Kinouchi and Hiroshi Kido : The effect of Carnitine on human brain, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 249, Sep. 2011. (Summary) ヒトのl-カルニチン摂取時の脳波の変化について検討している．その結果，摂取後90分前後でデルタ波成分の増加が見られた．
171.	鴻野浩一郎, Masatake Akutagawa, Takahiro Emoto, Hirofumi Nagashino, Shinsuke Konaka, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa and Yohsuke Kinouchi : 1ダイポールモデルによるアルファ活動近似の検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 248, Sep. 2011. (Summary) 脳波のアルファ波の発生部位について検討している．本報告ではアルファ波の信号源を1個の電流ダイポールと仮定し，ニューラルネットワーク用いた信号源推定を行って，位置と向きを求めた．その結果，信号源は主として後頭部付近あるいは後帯状皮質付近に分布した．ただし，両側に信号源があるとする方ここもあり，さらなる検討が必要である．
172.	Makoto Shigeta, Takahiro Emoto, Masatake Akutagawa, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa, Shinsuke Konaka, Hirofumi Nagashino and Yohsuke Kinouchi : Difference of Perceptual Responce between Auditory Stimuli and Recalling Them, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 247, Sep. 2011. (Summary) 人が聴覚刺激を受けると脳波(EEG)には刺激に反応して聴覚誘発電位(AEP)が出現することが知られている．また同一の聴覚刺激を聞き続けると，無刺激時でも実際に音を聞いているかのように想起できる場合がある．そこで事象関連電位(ERP)から，想起時の脳活動を明らかにすることを目的に研究を行っている．ERPの一種であるP300は人の注意や意思決定など知覚認知過程を反映すると考えられている．本研究では，P300に注目し想起音と実音による知覚反応の違いについて検討した．
173.	Yongjian Chen, Takahiro Emoto, Masatake Akutagawa and Yohsuke Kinouchi : Performance Evaluation of Blind Source Separation Based Multiple Dipoles Localization by 18 channels EEG, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 246, Sep. 2011. (Summary) 脳内に複数の信号源がある場合，信号源の数を推定し，次元圧縮することが重要である．そこで脳波を複数の独立した電流ダイポールによる電位の重ね合わせであると仮定し，独立成分分析(ICA)により独立成分を求めた後，各成分ごとに頭皮電位を逆写像により求めて，信号源推定をすることで，処理の単純化が可能である．本稿では加算雑音が重畳した場合について提案法が適用できるか検討している．
174.	Yuya Nakahira, Takahiro Emoto, Masatake Akutagawa, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : Synchronization between Primary Motor Cortex and Supplementary Motor Area During Bimanual Polyrhythmic Tapping, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 245, Sep. 2011. (Summary) 両手で拍が一致しないポリリズムの両手協調動作では，その振動数比がより簡単な整数比に引き込まれる相転移が生じ，両手のリズム運動を維持できない場合がある．そこで両手のポリリズム運動時と，単純な両手同時運動時の一次運動と補足運動野間でのコヒーレンスを計算し，相転移による活動変化について検討した．
175.	Yukitoshi Yoshida, Masatake Akutagawa, Takahiro Emoto, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : A study on the reduction of the number of event-related potential averaging with the wavelet denoising, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 244, Sep. 2011. (Summary) 事象関連電位を抽出する際，Wavlet変換を利用してノイズ除去を行う手法について提案した．可能な限り加算回数が少ないことが理想的であり，提案法を用いると加算回数が少なくてもERP波形のピークの確認が容易となることを示した．
176.	楠本悟史, Takahiro Emoto, Toshiya Okahisa, 庄野弘一, Udantha R. Abeyratne, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : 腸蠕動音解析による薬剤服用前後の腸活動の評価, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-12, 241, Sep. 2011.
177.	庄野弘一, Takahiro Emoto, Toshiya Okahisa, Udantha R. Abeyratne, 楠本悟史, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : ARMA モデルを活用した腸蠕動音自動抽出, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-11, 240, Sep. 2011.
178.	Takuto Inoko, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi, Tadaoki Morimoto, Akira Tangoku, Kenji Okazaki, Mikio Miyakogawa and Emiko Yasuno : Biological impedance parameter presumption with lattice circuit, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 237, Sep. 2011. (Summary) 生体組織インピーダンス測定値に最小誤差で適合する二次元等価回路のパラメータ決定を行うために，皮下組織の層状構成を考慮し，かつ周波数依存性のないパラメータを要素とする回路構成を検討した．また生体組織を実測し，抵抗値および導電率の推定を行った．
179.	天本広樹, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi and Yuichi Kogure : Improvement of security in the remote patient information monitoring system using iPhone, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 235, Sep. 2011. (Summary) スマートフォンなどの携帯端末の普及によりICU/CCU内の生体モニタの情報をインターネットを介して閲覧できるようになってきた．従来から構築してきた患者情報モニタリングシステムについて，ユーザビリティとセキュリティについて検討した．
180.	Yusuke Manabe, Tsuyoshi Okahisa, Masayuki Yamato, Akira Takahashi, Masatake Akutagawa, Yohsuke Kinouchi and Takahiro Emoto : Improvement of a Pipe type UVA-LED Sterilizer Using a Condenser Lens, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 233, Sep. 2011. (Summary) UV-LEDを用いた新しい殺菌装置の開発を目指し，放射照度分布と殺菌効果の関係を研究している．波長365nmのUVを発光するUVA-LEDを用いてタンク内の水を殺菌する装置を製作した．2種類のタンクを用いて，フレネルレンズを装着した場合と装着していない場合で殺菌実験を行いと殺菌効果への影響を検討した．
181.	Motoshi Masuda, Masatake Akutagawa, Shigeru Obara, Hiroyuki Tanaka, Kazuo Yoshizaki, Kazuyoshi Kitaoka, Takahiro Emoto, Shinsuke Konaka and Yohsuke Kinouchi : Study on blood flow velocity patterns using one-dimensional computer simulation of human arteries, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 232, Sep. 2011. (Summary) 血流速度測定システムを開発し，様々な条件で総頸動脈(CCA)血流速度測定を行ってきた．先行研究では，測定結果の波形に見られる特徴点の値から，動脈硬化などの評価の検討を行ってきたが，波形の個人差の成因について理論的に裏付けられていない．本研究では数値流体シミュレーションを用いてCCAの血流速度波形の再現を検討した．
182.	Kouki Aoyama, Motoshi Masuda, Shota Minato, Masatake Akutagawa, Takahiro Emoto, Shigeru Obara, Kazuo Yoshizaki, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Shinsuke Konaka and Yohsuke Kinouchi : Evaluation of atherosclerosis using carotid blood flow velocity waveforms, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 231, Sep. 2011. (Summary) 左総頸動脈における頸動脈血流速度波形は加齢の影響を強く受け，収縮期の最大速度に続いて現れる第2のピーク(S2)は動脈の硬化に伴って隆起する事が示唆されている．だが，被験者によってはS2が不明瞭であり，目視による値のばらつきも大きい．本稿では左総頸動脈血流速度波形からS2に替わり定量的・機械的に求めることができる動脈硬化の指標を提案する．そしてその指標の妥当性を確認するために，心臓足首血管指数との関連を調べた．
183.	Shota Minato, Masatake Akutagawa, Shigeru Inui, Yasushi Toyosu, Shigeru Obara, Kazuo Yoshizaki, Hiroyuki Tanaka, Kazuyoshi Kitaoka, Zhong Wang, Shinsuke Konaka, Takahiro Emoto and Yohsuke Kinouchi : Simultaneous Measurement of High Precision Body Surface Electrocardiogram and Blood Flow Velocity, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 230, Sep. 2011. (Summary) 循環器系疾患の予防・早期発見のため，先行研究で小型の血流計測装置を開発し血流動態の解明を目指してきた．さらに詳細な診断ができるように左総頸動脈の血流速度と高精度体表面心電計による心電図との同期測定を行った．
184.	Sudo H., Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 電磁界解析によるワイヤーボンド高周波特性の検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.9-1, 115, Sep. 2011.
185.	Kobayashi R., Shinsuke Konaka, Toshiya Okahisa, Yohsuke Kinouchi, Masatake Akutagawa and Takahiro Emoto : エッジ抽出と方向性膨張処理による血管抽出の検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.13-3, 204, Sep. 2011.
186.	Kondo S., Shinsuke Konaka, Toshiya Okahisa, Yohsuke Kinouchi, Masatake Akutagawa and Takahiro Emoto : Laplacian filterを用いたNBI画像からの血管抽出の検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.13-2, 203, Sep. 2011.
187.	Minghu Huangfu, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 楕円テンプレートを用いた細胞抽出の閾値について, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.13-1, 202, Sep. 2011.
188.	Kazuaki Matsumoto, Shinsuke Konaka, Takahiro Emoto and Masatake Akutagawa : サンプル選択による楽音照合率改善の検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-5, 234, Sep. 2011.
189.	Makoto Shigeta, Takahiro Emoto, Masatake Akutagawa, Hirofumi Nagashino, Yohsuke Kinouchi, Yoshio Kaji, Kazuhiko Furukawa and Fumio Shichijo : Difference of activated cortical states between auditory stimuli and recalling them, 電気学会電子·情報·システム部門大会論文集, 925-929, Sep. 2011. (Summary) 人が聴覚刺激を受けると脳波(EEG)には刺激に反応して聴覚誘発電位(AEP)が出現することが知られている．また同一の聴覚刺激を聞き続けると，無刺激時でも実際に音を聞いているかのように想起できる場合がある．そこで事象関連電位(ERP)から，想起時の脳活動を明らかにすることを目的に研究を行っている．ERPの一種であるP300は人の注意や意思決定など知覚認知過程を反映すると考えられている．本研究では，P300に注目し想起音と実音による知覚反応の違いについて，ICA，ITPCなどを用いて検討した． (Keyword) electroencephalogram
190.	Asato Suzuki, Masahiro Minato, Masatake Akutagawa, Kazuo Yoshizaki, Shigeru Obara, Hiroyuki Tanaka, Yuji Hirao, Takahiro Emoto, Kazuyoshi Kitaoka, Tomoki Kitawaki, Hisao Oka and Yohsuke Kinouchi : Study on blood flow velocity patterns using one-dimensional computer simulation of human arteries, IEICE Technical Report, Vol.110, No.460, 107-111, Mar. 2011. (Summary) 数値流体シミュレーションを用いて総頸動脈血流パターンを再現し，収縮期の最大速度に続いて現れる第2のピーク(S2)が現れる現象の発生要因の特定を目指す. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520572357929235968 (CiNii: 1520572357929235968)
191.	Toshiya Okahisa, Tetsuo Kimura, Koichi Okamoto, Hiroshi Miyamoto, Seisuke Okamura, Tetsuji Takayama, 神野涼太, Masatake Akutagawa, Takahiro Emoto and Shinsuke Konaka : 炎症性腸疾患に対するアフェレシスを支える次世代内視鏡画像解析システムの開発, 第31回アフェレシス学会学術大会, Nov. 2010.
192.	Hyuma Takeshige, Shinsuke Konaka and Takahiro Emoto : Examination about the parameter of the heart sound from a stethoscope sound, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 190, Sep. 2010.
193.	M Huangfu, Shinsuke Konaka and Takahiro Emoto : About the method of comparing for the distribution of cell nucleus extracted by an oval template matching, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 186, Sep. 2010.
194.	Ryo Yokoyama, Shinsuke Konaka and Takahiro Emoto : Buffer circuit with phase compensation considering the frequency characteristics of CMOS operational amplifier gain, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 88, Sep. 2010.
195.	Jia Yu, Yohsuke Kinouchi, Shinsuke Konaka, Masatake Akutagawa, Takahiro Emoto and Qinyu Zhang : BER Analysis of Signal Relay Selection with Amplify-and-Forward Protocol, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 317, Sep. 2010.
196.	Takaomi Fujiwara, Masatake Akutagawa, Yohsuke Kinouchi and Takahiro Emoto : The development of a device detecting an internal position using a magnetic sensors, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 208, Sep. 2010.
197.	Makoto Shigeta, Takahiro Emoto, Masatake Akutagawa, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa, Shinsuke Konaka, Hirofumi Nagashino and Yohsuke Kinouchi : An effective technique based on independent component analysis for extracting the VEP, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 207, Sep. 2010.
198.	Masahiro Minato, Asato Suzuki, Hiroki Aoyama, Masatake Akutagawa, Takahiro Emoto, Yuji Hirao, Kazuo Yoshizaki, Shigeru Obara, Hiroyuki Tanaka, Shinsuke Konaka and Yohsuke Kinouchi : The improvement of the doppler signal decision circuit in the portable blood flow measurement system, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 206, Sep. 2010.
199.	Tidiane Seck Ahmed Cisse, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi and Hiroshi Kido : The effect of Carnitine on human brain, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 205, Sep. 2010.
200.	Satoshi Kusumito, Takahiro Emoto, Udantha R. Abeyratne, Koichi Shono, Masatake Akutagawa, Toshiya Okahisa and Yohsuke Kinouchi : Bowel sound analysis for the evaluation of bowel activity, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 204, Sep. 2010.
201.	Tomoaki Hashimoto, Takahiro Emoto, Masatake Akutagawa, Udantha R. Abeyratne, Yohsuke Kinouchi, Shinsuke Konaka and Eiji Kondo : Investigating the frequency band of the snoring spectrum for the screening of obstructive sleep apnea syndrome, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 200, Sep. 2010.
202.	Ryota Kanno, Shinsuke Konaka, Toshiya Okahisa, Masatake Akutagawa and Takahiro Emoto : Using improved gaussian templates blood vessels extraction in endoscope image of large intestine, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 196, Sep. 2010.
203.	Koichiro Kono, Masatake Akutagawa, Takahiro Emoto, Hirofumi Nagashino, Shinsuke Konaka, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa and Yohsuke Kinouchi : Estimation of spontaneous alpha activity using neural network, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 195, Sep. 2010.
204.	Makoto Fujiwara, Masatake Akutagawa, Yohsuke Kinouchi, Hirofumi Nagashino, Takahiro Emoto and Shinsuke Konaka : The EEG analysis by using neural network, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 194, Sep. 2010.
205.	Koki Aoyama, Shigeru Obara, Hiroyuki Tanaka, Kazuyoshi Kitaoka, Yuji Hirao, Masatake Akutagawa, Takahiro Emoto, Akihiro Inagaki, Shinsuke Konaka, Kazuo Yoshizaki and Yohsuke Kinouchi : 頚動脈血流速度パターンの折れ線近似を用いた評価, 第33回日本生体医工学会中国四国支部大会, 22, Sep. 2010.
206.	Yusuke Aoki, Takahiro Emoto, Masatake Akutagawa, Udantha R. Abeyratne, Eiji Kondo, Ikuji Kawata, Shinsuke Konaka and Yohsuke Kinouchi : ニューラルネットワークを用いたいびき音と呼吸音の区間検出, 第33回日本生体医工学会中国四国支部大会, 21, Sep. 2010.
207.	Yoshinori Nitta, Masatake Akutagawa, Takahiro Emoto, Toshiya Okahisa, Hiroshi Miyamoto, Shinsuke Konaka, Yoshiaki Ohnishi and Yohsuke Kinouchi : Modeling and simulation about Ht value during LCAP, 第49回日本生体医工学会大会抄録集, No.48, 288, Jun. 2010.
208.	橋本知明, Takahiro Emoto, Masatake Akutagawa, Udantha R. Abeyratne, Yohsuke Kinouchi, Shinsuke Konaka and 近藤英司 : Screening of obstructive sleep apnea syndrome by frequency analysis on snore, 第49回日本生体医工学会大会抄録集, No.48, 240, Jun. 2010.
209.	Ryouta Kanno, Shinsuke Konaka, Toshiya Okahisa, Takahiro Emoto and Masatake Akutagawa : 潰瘍性大腸炎内視鏡画像からの血管本数抽出の検討, 電子情報通信学会総合大会講演論文集, No.D-7-9, Mar. 2010.
210.	Yoshinori Nitta, Masatake Akutagawa, Takahiro Emoto, Toshiya Okahisa, Hiroshi Miyamoto, Yoshiaki Ohnishi, Masaji Nishimura and Yohsuke Kinouchi : LCAP施行中における現在と1分後のHt値の解析, The Japanese Journal of Quality and Safety in Healthcare, Vol.9, 163, Nov. 2009.
211.	Huangfu Minghui, Shinsuke Konaka and Takahiro Emoto : Search for cell nucleus that uses the oval template, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-25, 241, Sep. 2009.
212.	Takeshige Hyuma, Shinsuke Konaka and Takahiro Emoto : A study about classification of the heart sound from a stethoscope heart sound, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-1, 217, Sep. 2009.
213.	Kimura Ryo, Shinsuke Konaka and Takahiro Emoto : Design of nMOS drive circuit for DFB laser, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.9-15, 119, Sep. 2009.
214.	Yokoyama Ryo, Shinsuke Konaka and Takahiro Emoto : A study of frequency characteristic in CMOS operational amplifier by phase compensation circuit optimization, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.9-14, 118, Sep. 2009.
215.	Yoshiki Utunomiya, Masahiro Minato, Asato Suzuki, Takahiro Emoto, Masatake Akutagawa, Hiroyuki Tanaka, Shigeru Obara, Kazuo Yoshizaki and Yohsuke Kinouchi : Change of heart rate and peak systolic blood flow velocity in common carotid artery during Head-up Tilt using power spectral analysis, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 225, Sep. 2009.
216.	Ryouta Kanno, Shinsuke Konaka, Toshiya Okahisa, Takahiro Emoto and Masatake Akutagawa : An Examination of Extracting Blood Vessels in Endoscope Image of Large Intestine Using Matched Filter, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-8, 224, Sep. 2009.
217.	Takaomi Fujiwara, Masatake Akutagawa, Yohsuke Kinouchi and Takahiro Emoto : Measurement System for a Moving Object in the body using magnetic sensors, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 223, Sep. 2009.
218.	Yoshinori Nitta, Masatake Akutagawa, Takahiro Emoto, Toshiya Okahisa, Hiroshi Miyamoto, Yoshiaki Ohnishi, Masaji Nishimura and Yohsuke Kinouchi : Analysis of Ht value during the LCAP treatment, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 222, Sep. 2009.
219.	Makoto Fujiwara, Kenta Mukai, Masatake Akutagawa, Yohsuke Kinouchi, Hirofumi Nagashino and Takahiro Emoto : The estimate of the brain function change using neural network, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 221, Sep. 2009.
220.	Yuusuke Aoki, Takahiro Emoto, Masatake Akutagawa, Udantha R. Abeyratne and Yohsuke Kinouchi : Sonoring extraction based on neural network, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 219, Sep. 2009.
221.	Seisuke Okuno, Nobuhiro Kudoh, S. Nishimoto, K. Kagamihara, Masatake Akutagawa, Yohsuke Kinouchi and Takahiro Emoto : The study of offset about magnetic strain by spheroid-shaped magnetic materials, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 89, Sep. 2009.
222.	Tetsuya Kusumoto, Takahiro Emoto, Masatake Akutagawa, Shinsuke Konaka, Yohsuke Kinouchi, Udantha R. Abeyratne, Eiji Kondo and Ikuji Kawata : Sleep apnea screening based on the evaluation of snoring formant transmission, 電気学会電子·情報·システム部門大会論文集, No.MC8-9, 832-835, Sep. 2009.
223.	Yoshiki Utsunomiya, Azhim Azran, Asato Suzuki, Masatake Akutagawa, Takahiro Emoto, Hiroyuki Tanaka, Shigeru Obara and Yohsuke Kinouchi : Measurement of blood flow velocity in the carotid artery using blood flow velocity telemetory system, 電気学会電子·情報·システム部門大会論文集, No.MC8-3, 812-816, Sep. 2009.
224.	Takahiro Emoto, Udantha R. Abeyratne, Shaminda de Silva, Tetuya Kusumoto, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : Comparing apneic snorer with benign snorer based on formant frequency analysis, システム・情報部門学術講演会2008講演論文集, 527-528, Nov. 2008.
225.	Yoshinori Nitta, Masatake Akutagawa, Takahiro Emoto, Toshiya Okahisa, Hiroshi Miyamoto, Yoshiaki Ohnishi, 中根俊也, Ryuji Kaji, Masaji Nishimura and Yohsuke Kinouchi : SOMを使用した血液浄化療法中における患者体内の水分移動の評価, 第31回日本生体医工学会中四国支部大会講演抄録, 32, Oct. 2008.
226.	Takahiro Emoto, Udantha R. Abeyratne, Shaminda de Silva, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : 鼾に関連する信号のセグメンテーション, 第31回日本生体医工学会中四国支部大会講演抄録, 17, Oct. 2008.
227.	楠本哲也, Takahiro Emoto, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : 線形予測符号化法を用いた鼾音のホルマント周波数抽出時における基礎的検討, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, No.14-26, Sep. 2008.
228.	萩原大輔, Masatake Akutagawa, Hirofumi Nagashino, Yohsuke Kinouchi, Takahiro Emoto and Udantha R. Abeyratne : Research on screening of snore for Sleep Apnea Syndrome inspection, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 259, Sep. 2008.
229.	Takahiro Emoto, Udantha R. Abeyratne, Masatake Akutagawa, Hirofumi Nagashino and Yohsuke Kinouchi : Feature Extraction of Obstructive Sleep Apnea via Time Delay Neural Network Processing, 第30回日本生体医工学会中四国支部大会講演抄録, 13, Oct. 2007.
230.	萩原大輔, Masatake Akutagawa, Hirofumi Nagashino, Yohsuke Kinouchi, Takahiro Emoto and Udantha R. Abeyratne : Research on screening blockage type Sleep Apnea Syndrome by snore analysis, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 229, Sep. 2007.
231.	Kunihiko Inoue, Masatake Akutagawa, Takahiro Emoto, Udantha R. Abeyratne, Tetsuya Uemura, Hirofumi Nagashino and Yohsuke Kinouchi : Parametric estimation of the snore sound by AIC, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 201, Sep. 2006.
232.	Inoue Kunihiko, Masatake Akutagawa, Takahiro Emoto, Hirofumi Nagashino and Yohsuke Kinouchi : Linear neural network based on auto-regressive model identification for apnea screening, 第28回日本生体医工学会中国四国支部大会講演抄録, 38, Oct. 2005.
233.	Takahiro Emoto, Masatake Akutagawa, Hirofumi Nagashino and Yohsuke Kinouchi : Feature extraction for the sleep state in obstructive sleep apnea using the connection weight of neural networks, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 234, Sep. 2005.
234.	Takahiro Emoto, Masatake Akutagawa, Hirofumi Nagashino and Yohsuke Kinouchi : MA型ニューラルネットワークを用いた生体システムの状態変化の検出, Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2004.

Et cetera, Workshop:

1.	IKUTA Kodai, Masatake Akutagawa, Takahiro Emoto, Yohsuke Kinouchi, Kazuyoshi Kitaoka, Hirotsugu Yamada and Hiroyuki Tanaka : Analysis of common carotid artery blood flow velocity spectrogram using CNN for diagnosis of arteriosclerosis, IEICE Technical Report (MBE), Vol.124, No.137, 1-5, Jul. 2024. (Summary) This research group is developing a carotid artery blood flow velocity measurement device as a simple screening device to investigate hemodynamics of the circulatory system. In this study, with the goal of evaluating and judging the degree of progression of atherosclerosis, we used the common carotid artery blood flow velocity spectrograms of healthy subjects and atherosclerosis patients measured with a prototype carotid artery blood flow velocity measurement device as training data and classified them into healthy subjects and atherosclerosis patients using CNN. The differences between the spectrograms of atherosclerosis patients and healthy subjects were extracted and compared using Glad-CAM. As a result, there were differences in important aspects of the classification between atherosclerosis patients and healthy subjects.
2.	Masatake Akutagawa, Daichi Tagami, Takahiro Emoto, Fumio Shichijo, Yoshio Kaji and Yohsuke Kinouchi : Measurement of Laryngeal Prominence During Swallowing Using Magnetic Sensors, IEICE Technical Report (MBE), Vol.123, No.128, 13-16, Jul. 2023. (Summary) Swallowing is one of the most important functions for a healthy life. However, if the swallowing function deteriorates for some reason, it may cause serious diseases such as deterioration of nutritional status and aspiration pneumonia. Various of rehabilitation are performed for patients with dysphagia, and it is useful to have an objective index that expresses the "goodness" of swallowing movements. In this study, the authors attempted to estimate the skin movement near the laryngeal prominence using a neodymium magnet and two 3D magnetic sensors. As a result of computer simulations and experiments, it was found that approximate movements can be measured, although there are some errors. Especially, rotational motion measurements provided proper results for swallowing timing. It is necessary to consider further improvement of accuracy and interpretation of measurement results. (Keyword) swallowing / magnetic sensor / SSVEP / laryngeal prominence
3.	Yuki Matsugi, Masatake Akutagawa, Takahiro Emoto, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Hirotsugu Yamada and Yohsuke Kinouchi : Study on the relationship between features of carotid artery blood flow velocity waveforms and arteriosclerosis using autoencoder, IEICE Technical Report (MBE), Vol.122, No.424, 33-37, Mar. 2023. (Summary) Previous research has revealed that differences in blood flow velocity waveforms appear due to exercise effects and aging, but the relationship between arteriosclerosis and blood flow velocity waveforms (BFVW) has not been fully elucidated. In this study, we used an autoencoder to compare the BFVW of the common carotid artery in arteriosclerosis patients and healthy subjects for the purpose of evaluating the progression of arteriosclerosis. This result suggests that the feature values obtained by the autoencoder may serve as indicators for evaluating the progression of arteriosclerosis. (Keyword) blood flow velocity / carotid artery / atherosclerosis / autoencoder
4.	Keisuke Yoshimura, Masatake Akutagawa, Takahiro Emoto, Fumio Shichijo, Yoshio Kaji and Yohsuke Kinouchi : Examining the relationship between detection rate of steady state visual evoked potential and basic rhythm, IEICE Technical Report (MBE), Vol.MBE2022-12(2022-07), 1-5, Jul. 2022. (Keyword) electroencephalogram / alpha wave / SSVEP
5.	Daichi Tagami, Masatake Akutagawa, Takahiro Emoto, Fumio Shichijo, Yoshio Kaji and Yohsuke Kinouchi : Measurement and functional evaluation of swallowing motion using magnetic sensors, IEICE Technical Report (MBE), Vol.120, No.111, 5-8, Jul. 2020. (Keyword) dysphagia / screening test / automatic counter
6.	Midori Yoshida, Eiichi Honda, Teruaki Ito, Tetsuo Ichikawa, Masatake Akutagawa, Takahiro Emoto and Yohsuke Kinouchi : LEDによる新しい植物育成照明方法の開発, LED総合フォーラム2020 in 徳島, 131-140, Feb. 2020.
7.	Toshiaki Yoshimoto, Yuji Morine, Kouzou Yoshikawa, Masatake Akutagawa, Takahiro Emoto, Mitsuo Shimada and Yohsuke Kinouchi : Blue light emitting diodeによる大腸癌増殖制御効果, LED総合フォーラム2020 in 徳島, 129-130, Feb. 2020.
8.	Toshitaka Ikehara, Mutsumi Nakahashi, Koichiro Tsuchiya, Takahiro Emoto, Masatake Akutagawa, Akira Takahashi and Yohsuke Kinouchi : Effects of reactive oxygen species induced by 405 nm LED light irradiation on cultured HeLa S3 cells, LED総合フォーラム2020 in 徳島, 145-148, Feb. 2020.
9.	Shunsuke Yamaguchi, Hideo Taketani, Masatake Akutagawa, Hiromichi Yumoto, Kouji Hirao, Takahiro Emoto, Hiroo Tarao, Tosihiko Tominaga, Toshitaka Ikehara, Emiko Yasuno and Yohsuke Kinouchi : Effect of Sterilization and Bone Formation by Applying High Frequency Voltage, LED総合フォーラム2020 in 徳島, 113-116, Feb. 2020.
10.	Hiromichi Yumoto, 太良尾浩生, Kouji Hirao, 富永敏彦, 坂東直樹, 高比良一輝, Takahiro Emoto, Masatake Akutagawa, Toshitaka Ikehara, Takashi Matsuo and Yohsuke Kinouchi : 電磁波照射による骨芽細胞培養培地内の電流密度分布とVEGF産生との関連, LED総合フォーラム2020 in 徳島, Feb. 2020.
11.	Tatsuya Shimizu, Masatake Akutagawa, Takahiro Emoto, Fumio Shichijo, Kazuhiko Furukawa, Yoshio Kaji and Yohsuke Kinouchi : 左体性感覚野に対する高精度少電極数脳内信号源推定, IEICE Technical Report (MBE), Vol.119, No.137, 1-6, Jul. 2019. (Summary) The electroencephalogram (EEG) is one of the familiar methods to estimate the activated brain area in the field of brain machine interface (BMI). However, many electrodes are necessary to carry out accurate estimation of activated brain area. This causes an increase in cost and installation time. In this study, the authors propose a electrodes placement system called by lopsided electrode layout(LEL). To examine applicability of LEL, the authors investigate a performance of source localization by sLORETA by using the 10-20 system and LEL.As results of them, applicability of LEL is confirmed. (Keyword) electroencephalogram / source localization / sLORETA / eccentrically located electrodes / left somatosensory area / SEP
12.	HSU SUNG CHUN, Masatake Akutagawa, Takahiro Emoto, Kazuyoshi Kitaoka, Hiroyuki Tanaka and Yohsuke Kinouchi : Improvement of noise resistance of blood flow velocity measurement using ultrasonic Doppler method, IEICE Technical Report (MBE), Vol.119, No.137, 7-11, Jul. 2019. (Keyword) ultrasound / Doppler / atherosclerosis / circulatory disease / blood flow velocity
13.	Akari Tsunedomi, Sho Hatayama, Takaaki Shimohata, Junko Kido, Sachie Amano, Mutsumi Nakahashi, Takashi Uebanso, Kazuaki Mawatari, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi and Akira Takahashi : Campylobacter jejuni汚染対策に向けたUVA-LEDの有用性について, 第10回日本カンピロバクター研究会総会, Dec. 2017.
14.	Fumika Oi, Tadahiko Nakagawa, Koichi Okamoto, Tetsuji Takayama, Masahiro Sogabe, Toshiya Okahisa, Masatake Akutagawa, Takahiro Emoto and Yohsuke Kinouchi : Development of extracorporeal blood irradiation model in rats, IEICE Technical Report (MBE), Vol.117, No.165, 17-20, Jul. 2017. (Keyword) LED / blood circulation / animal model / rat / medical engineering
15.	Kazuaki Mawatari, Hitomi Watanabe, Risa Nishisaka, Mutsumi Nakahashi, Akari Tsunedomi, Mizuki Kojima, Natsuki Nogami, Misuzu Makino, Rumiko Masuda, Takaaki Shimohata, Takashi Uebanso, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi and Akira Takahashi : Bacterial contamination in dialysis fluid and bactericidal effects of near UV-light emitting diodes, IEICE Technical Report (MBE), Vol.117, No.165, 13-16, Jul. 2017. (Keyword) artificial dialysis / microbial contamination / near UV / LED / disinfection
16.	Kensuke Omura, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi, Yoshio Kaji, Kazuhiko Furukawa and Fumio Shichijo : The applicable candition of Hilbert Huang Coherence for synchroization analysis, IEICE Technical Report (MBE), Vol.117, No.165, 7-12, Jul. 2017. (Summary) When a parson carry out higher brain activity such as cognition and memory, EEGs recorded from differ- ent region contain same frequency component at the same time. This brain synchronization is related to memory and cognitive mechanisms. In previous study, Hilbert Huang Coherence Coherence(HHC) analysis using Hilbert Huang transform has been proposed as a method of analyzing the degree of synchronization. In this study, The applicable condition and effectiveness in synchronization degree analysis is investigated by numerical simulation. As result of simulation, The truth turned out that HHC's ability to estimated synchronous frequecny and time is superior to Coherence analysis using Fourier and Morlet-Wavelet transform in synchronization degree analysis of the signal which has each frequency component more than twice as far apart. (Keyword) electroencephalogram / coherece analysis / Hilbert Huang Transform
17.	Yuji Morine, Kouzou Yoshikawa, Masatake Akutagawa, Takahiro Emoto, Mitsuo Shimada and Yohsuke Kinouchi : Cliical impact of light emittng diode on digestive diseases, IEICE Technical Report (MBE), Vol.117, No.165, 1-6, Jul. 2017. (Keyword) LED / digestive cancer / regenerative medicine / photoreceptor
18.	Hiroki Nishiwaki, Takuya Ishimoto, Masatake Akutagawa, Takahiro Emoto, Emiko Yasuno, Akira Tangoku, Shinsuke Konaka and Yohsuke Kinouchi : Bioelectrical impedance measurement device using the electrode switching circuit, IEICE Technical Report (MBE), Vol.116, No.170, 37-40, Jul. 2016. (Summary) If patient's mammary tumor is suspected breast cancer in breast cancer screening, the tumor tissue is sampled by biopsy for definitive diagnosis. In the case of tumor size is small, the patient is forced to wait until the tumor size becomes sufficient to sample because it is difficult to prick biopsy needle. The purpose of this study is support to breast cancer screening by measuring bioelectrical impedance before carrying out biopsy for small tumor. And we have been developing the measrement device. The authors proposed a method that discriminate breast cancer and fibroadenoma by measuring several positions which are changed from breast tissue including mammary tumor to healthy breast tissue. As a result of a computer simulation, it may be possible to the mothod. In order to realize this method, a measurement device was achieved the changing of the measurement positions by incorporating a switching circuit. Functional evaluation was carried out by measuring the potato as a phantom. As a result of experiment, the measurement device was able to use diagnostic methods. (Keyword) Bioelectrical impedance / measurement devices / relay / breast carcinoma / poteto (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009408873304960 (CiNii: 1520009408873304960)
19.	Shimpachi Matsunaga, Masatake Akutagawa, Takahiro Emoto, Yoshio Kaji, Kazuhiko Furukawa, Shinsuke Konaka, Fumio Shichijo and Yohsuke Kinouchi : EEG source localization using eccentrically located electrodes and sLORETA, IEICE Technical Report (MBE), Vol.116, No.170, 33-36, Jul. 2016. (Summary) EEG (electroencephalography) source localization is convenient methods to analyze brain activity because of non-invasiveness and high temporal resolution. However, large number of electrodes should be necessary for accurate source localization because the number of electrodes is insufficient to obtain high resolution potential map on the scalp.The goal of this study is to realize accurate source localization using small number of electrodes. When the region of the source is known in prior to measurement, it could be unnecessary that electrodes are evenly located the whole head. Electrode arrangements using electrodes near the target region are proposed. In addition, localization accuracies for proposed electrode arrangements are examined using sLORETA by the computer simulations. as the result, it was confirmed that source localization accuracies using proposed electrode arrangements were higher than that of standard electrode systems (Keyword) electroencephalogram / Source localization / Eccentrically located electrodes / sLORETA (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009407989628672 (CiNii: 1520009407989628672)
20.	Junya Asano, Masatake Akutagawa, Takahiro Emoto, Yoshio Kaji, Kazuhiko Furukawa, Shinsuke Konaka, Tetsuo Ichikawa, Fumio Shichijo and Yohsuke Kinouchi : Evaluation method of swallowing function using magnetic sensors, IEICE Technical Report (MBE), Vol.116, No.170, 29-32, Jul. 2016. (Summary) In the area of rehabilitation, there is a growing interest in dysphagia. Purpose of this study is to automate the dysphagia screening test, and to establish an evaluation method with standard evaluation criteria. In this study, the authors developed a measurement device for the laryngeal movement associated with swallowing using a neodymium magnet and three-dimensional magnetic sensors. Subjects' tasks are same as repetitive saliva swallowing test (RSST), modified water swallow test (MWST), and food test which are representative screening test. In this experiment, the first swallowing is extracted as a template waveform for each subject. Similarity to the template is calculated to evaluate the swallowing. The similarity shows high values when subjects do swallowing. Number of swallowing can be counted automatically. It is suggested that screening test can be conducted objectivity without special facilities using this proposed method. (Keyword) Dysphagia / screening test / automatic counter (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520572359415637504 (CiNii: 1520572359415637504)
21.	Tsunedomi Akari, Takaaki Shimohata, Gotoh Marin, Amano Sachie, Mutsumi Nakahashi, Takashi Uebanso, Kazuaki Mawatari, Katsuyuki Miyawaki, Takahiro Emoto, Masatake Akutagawa, Yohsuke Kinouchi and Akira Takahashi : Campylobacter jejuniに対するUVA-LEDの有効性, 第8回日本カンピロバクター研究会総会, Dec. 2015.
22.	Arisa Tada, Masatake Akutagawa, Takahiro Emoto, Shigeru Obara, Kazuo Yoshizaki, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Yohsuke Kinouchi and Shinsuke Konaka : Comparison of the arterial elasticity evaluation based on the carotid blood flow velocity and CAVI, IEICE Technical Report (MBE), Vol.115, No.147, 19-22, Jul. 2015. (Summary) 近年，日本国内における死亡原因の約25%は脳梗塞や心筋梗塞など循環器系疾患であることが厚生労働省より報告されている．家庭における動脈弾性の定期的な診断が実現すれば，生活習慣の改善につながり，動脈硬化の進行を抑制が期待できる．頸動脈血流速度波形では，動脈弾性の指標となりうることが期待されている．そこで，動脈硬化の指標であるCAVIと比較することにより，頸動脈血流速度波形を用いた指標の妥当性を調査した．被験者は弾性134名，女性116名の計250名で，血流速度測定した後，CAVIを測定した．結果，S1やS2/S1，FAIとCAVIに相関があり(r>0.58)，動脈弾性の指標となることを示唆した． (Keyword) blood flow velocity / carotid artery / artery elasticity / CAVI (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520853833178490752 (CiNii: 1520853833178490752)
23.	Masatake Akutagawa, Takahiro Kinouchi, Takahiro Emoto, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : Analysis of a Chaotic Time Series Using Connection Weight Vectors of Neural Networks, IEICE Technical Report (MBE), Vol.115, No.147, 23-28, Jul. 2015. (Summary) A method to analyze a time series to quantify change of internal state of a non-linear system is introduced. A multi-layered neural network is trained to embed a model of the system from given time series. The state is considered to be embedded as a connection weight vector in the neural network. The change of the state is able to be quantified from the connection weight vectors. Generally, the sensitivity of the measure becomes lower because the dimension of the connection weight is high. To avoid this concentration of the measure phenomenon, dimension of the connection weight vector is compressed by the principal component analysis. As result of them, we confirmed applicability of the proposed method for the Ikeda map, which generates chaotic time series. (Keyword) time series analysis / neural network / FNN / PCA / Ikeda map (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520572359156750592 (CiNii: 1520572359156750592)
24.	庄野剛史, Takahiro Emoto, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : 絶対音感モデルによる音響解析の基礎的検討, The Papers of Technical Meeting, IEE JAPAN, Vol.IIC-15-012-015017018, 13-16, Jun. 2015.
25.	Seiji Iwami, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi, Tadaoki Morimoto, Akira Tangoku, Kenji Okazaki, Emiko Yasuno, Takuto Inoko and Tomoya Takahashi : Investigation of electrode arrangement for the bioimpedance measurement of tumor tissue, IEICE Technical Report, Vol.112, No.123, 25-29, Jul. 2012. (Summary) Electrical resistance of normal tissue is different to electrical resistance of malignant tissue that is known by past study. A fixed measuring electrode device has so far been developed. In this study, we investigated the effect of measurement of different in electrode placement using the biological equivalent circuit model. As results of simulation using the biological equivalent circuit, the pr esented electrode arrangement seems to be effective in bio impedance measurement of tumor tissue. (Keyword) simulation / electrode arrangement / biological equivalent circuit model
26.	Kyung-Hwa Kim, Makoto Shigeta, Takahiro Emoto, Masatake Akutagawa, Hirofumi Nagashino, Yohsuke Kinouchi, Yoshio Kaji, Kazuhiko Furukawa and Fumio Shichijo : The study on the auditory recalling as types of auditory stimuli, IEICE Technical Report, Vol.112, No.123, 11-14, Jul. 2012. (Summary) The human hear sounds which are not present in the stimulus, after hearing periodic auditory stimuli (PAS). The purpose of this study is to investigate the difference of brain activity between hearing PAS and recalling PAS through the use of EEG. The experiment was carried out according to the types of auditory stimuli. For obtain the objective indicators of auditory recall, we used Inter-Trial Phase Coherence (ITPC) to analyze the EEG oscillations, which aimed to explore the influence of auditory recall on EEG oscillations at various frequency bands. Increased alpha-band phase synchronization was observed in both hearing PAS and recalling PAS (Keyword) Auditory recalling / electroencephalogram / ERPs / ITPC / ICA
27.	Minghu Huangfu, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : 楕円テンプレートを用いた細胞サンプル画像との一致率評価の一検討, 電子情報通信学会技術研究報告，MEとバイオサイバネティックス研究会 MBE2012-29, Vol.112, No.123, 31-34, Jul. 2012. (Summary) Cancer is one of the diseases with high death rate. The difference between cancer tissue and normal tissue is cell distribution. We use the ellipse template and the edge process to extract the cells from normal tissue image. Then, in order to validation of Cell extraction results, a sample image of cell distribution by visual inspection is made. But this visual inspection model's sample point isn't inaccurate enough to compare cell extraction results. This study, calculation by maximum extraction rate and number of consecutive——correlation coefficient, depending on maximum of this calculation results to locate sample point. The correlation coefficient of this modified sample point is 0.0126.
28.	Masachika Ishizaki, Yusuke Manabe, Masatake Akutagawa, Yohsuke Kinouchi, Toshitaka Ikehara, Shinsuke Konaka, Akira Takahashi and Takahiro Emoto : UV-A(近紫外線)照射の殺菌効果に関するモデル化, LED総合フォーラム2012in徳島論文集, 79-80, Apr. 2012. (Summary) UV-Aを用いた殺菌について，UV-A照射量と菌数の関係を表すモデル式を提案し，実験結果と比較している．0.7Lステンレスタンクについて，大腸菌を一定濃度で入れた菌液を用いて近紫外線を照射して菌数の時間的推移を測定した．その結果，菌数の時間推移の傾向をモデル式で表すことができた．
29.	Yusuke Manabe, Masatake Akutagawa, Yohsuke Kinouchi, Toshitaka Ikehara, Akira Takahashi, Shinsuke Konaka, Takahiro Emoto and 石崎仁愛 : 近紫外線が細菌に与える影響に関する研究, LED総合フォーラム2012in徳島論文集, 77-78, Apr. 2012. (Summary) 波長365nmのUVA-LEDを用いた水殺菌装置について検討した．殺菌容器は内径22mmから56mm，深さ50mmから150mmのステンレス製の円筒容器を製作し，上部からUV-LEDを照射する構造とした．またLEDから照射されたUVを有効に利用するためにフレネルレンズを用いた．非病原性大腸菌を用いた実験で殺菌効果を確認した．
30.	Takahiro Emoto, Udantha R. Abeyratne, 橋本知明, Masatake Akutagawa, 近藤英司, 川田育二, Shinsuke Konaka and Yohsuke Kinouchi : 時間周波数解析によるいびき・母音識別に関する基礎検討, IEICE Technical Report, Vol.111, No.423, 19-20, Jan. 2012.
31.	岩見誠治, Masatake Akutagawa, Takahiro Emoto, Shinsuke Konaka, Yohsuke Kinouchi, Tadaoki Morimoto, Akira Tangoku, Kenji Okazaki, 安野恵美子, 猪子拓人 and 高橋知也 : 浅部腫瘍生体組織インピーダンス測定のための電極配置について, IEICE Technical Report (MBE), Vol.112, No.123, 25-29, 2012. (Keyword) 異物(診断)
32.	Yuya Nakahira, Takahiro Emoto, Masatake Akutagawa, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa, Hirofumi Nagashino, Shinsuke Konaka and Yohsuke Kinouchi : Study of synchronous of cortex areas during polyrhythmic tapping, 電子情報通信学会技術研究報告，MEとバイオサイバネティックス研究会, Vol.111, No.121, 53-57, Jul. 2011. (Summary) 両手で拍の一致しない複雑なリズム運動を行ったとき，運動が左右の手で同調する相転移が生じる．このときの補足運動野(SMA)と一次運動野(M1)での活動について脳波(EEG)を用いて検討した．被験者は健康な男子学生2名(22-23歳)で，自己ペースでの両手の同時，3:2のタッピングを被験者の選択した速さ(パーソナル・テンポ:P課題)，被験者の出来るだけ速く(F課題)の2種類の速さで指示され，計4課題を行った．解析はまずDRT (Deviation Ratio Topography)を用いてControl課題(同時タッピング(P))と比べSMAの活動度が変化した周波数帯を調べた．次にDRTで推定した周波数帯でのPLV (Phase Locking Value)を計算し，SMAとM1の活動の同期度を各課題で評価した．F課題ではP課題と比ベタッピングのばらつきが大きく，一定のタッピングを維持するのは難しかったと考えられる．本実験では被験者のいずれにおいても有意なPLVの違いは見られなかった．3:2タッピング課題で相転移がほとんど生じなかったためと考えられる． (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520572358535798400 (CiNii: 1520572358535798400)
33.	Kouki Aoyama, Masatake Akutagawa, Takahiro Emoto, Shigeru Obara, Kazuo Yoshizaki, Kazuyoshi Kitaoka, Hiroyuki Tanaka, Shinsuke Konaka and Yohsuke Kinouchi : Evaluation of atherosclerosis using carotid blood flow velocity waveforms, --- Feature extraction of systolic ---, 電子情報通信学会技術研究報告，MEとバイオサイバネティックス研究会, Vol.111, No.121, 41-46, Jul. 2011. (Summary) 左総頸動脈血流速度波形にて，収縮期の最大速度(S1)に続いて現れる第2のピーク(S2)は，動脈硬化の指標となり得ることが示唆されている．だが被験者によってはS2が不明瞭であり，目視による値のばらつきが大きい．そこで，S2に替わり血液速度波形から機械的に求めることができる指標A<sub>HR</sub>， A<sub>SII</sub> (S1以降収縮期面積)を提案する．そして血庄と脈波伝播速度から求められる動脈硬化の指標のCAVI (心臓足首血管指数)との関連からパラメータの妥当性を確認した．その結果A<sub>HR</sub>がCAVIと最も強い相関(r=0.765)があり，動脈硬化の指標として妥当であると確認できた． (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520853832837782656 (CiNii: 1520853832837782656)
34.	Satoshi Kusumoto, Takahiro Emoto, Toshiya Okahisa, Koichi Shono, Udantha R. Abeyratne, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : Vealuating bowel activity before-after administration of a drug via bowel sound analysis, 電子情報通信学会技術研究報告，MEとバイオサイバネティックス研究会, Vol.111, No.121, 37-39, Jul. 2011. (Summary) 過敏性腸症候群(Irritable Bowel Syndrome : IBS)は腸の活動が活発になり下痢を引き起こすことが知られている．現在，確定診断のためには大腸内視鏡検査が必要であるが，患者にとっては苦痛を伴う．腸蠕動音(Bowel sound : BS)は腸活動の変化に応じて変化することが予想される．そこで，本研究では電子聴診器を用いて測定したBSから腸活動が評価できるかどうかを検討する．腸蠕動音促進剤服用前後において，BSの基本周波数と腸活動との関係が比較検討される． (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520572357308622720 (CiNii: 1520572357308622720)
35.	Koichiro Kono, Masatake Akutagawa, Takahiro Emoto, Hirofumi Nagashino, Shinsuke Konaka, Yoshio Kaji, Fumio Shichijo, Kazuhiko Furukawa and Yohsuke Kinouchi : Source localization of alpha activity using neural networks, 電子情報通信学会技術研究報告，MEとバイオサイバネティックス研究会, Vol.111, No.121, 25-29, Jul. 2011. (Summary) α波とは，脳波(EEG)のうち周波数が8∼13Hzであるものをさす．その詳しい発生源や発生機構は様々な説が提案されているが，明確な結論は得られておらず，さらなる研究の必要がある．本研究ではα波に対し周波数解析，ニューラルネットワークを用いた等価電流ダイポール推定を行い，信号源の推定を行った．被験者は20代の学生3人で，30秒毎に開眼，閉眼の指示を与え，そのうち閉眼状態のEEGに対し解析を行った．推定精度が一定以上のダイポールは視覚野付近と帯状回付近に多く推定されたが，位置誤差と広がりをもつ信号源の検討が必要であると考えられる．ダイポールモーメントの方向は矢状面にほぼ平行となった． (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520572358328117504 (CiNii: 1520572358328117504)
36.	Minghu Huangfu, Shinsuke Konaka, Masatake Akutagawa and Takahiro Emoto : Improving the Cell Extraction Rate using Ellipse Template Image Processing, 電子情報通信学会技術研究報告，MEとバイオサイバネティックス研究会 MBE2011-23, Vol.111, No.121, Jul. 2011. (Summary) 癌は最も死亡率が高い病気の一つである．癌組織と正常組織の細胞核の分布に違いが見られる．本研究では，その判別を画像処理で行う目的で，正常組織画像にエッジ処理と楕円テンプレートマッチングを行い，細胞を抽出した．マッチングステップの1ピクセル化，および，テンプレートとの一致率の計算方法の改良によって，細胞抽出の閾値として，勾配5，テンプレートとの一致率40∼55%に有効ことが分かった． (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009408565463296 (CiNii: 1520009408565463296)
37.	Tomohiro Oshita, 岡久強志, 真鍋佑輔, Masayuki Yamato, Takahiro Emoto, Masatake Akutagawa, Akira Takahashi and Yohsuke Kinouchi : 光殺菌効果の波長依存性に関する研究, LED総合フォーラム2011in徳島論文集, 89-90, Jun. 2011.
38.	Tsuyoshi Okahisa, Masatake Akutagawa, Takahiro Emoto, Masayuki Yamato, 高橋章, 料治春華, 真鍋佑輔, 大下知洋 and 木内陽介 : 微生物の不活化曲線の推測, LED総合フォーラム2011in徳島論文集, 87-88, Jun. 2011.
39.	Makoto Fujiwara, Masatake Akutagawa, Yohsuke Kinouchi, Hirofumi Nagashino and Takahiro Emoto : ニューラルネットワークを用いた脳機能変化の推定, 電子情報通信学会技術研究報告，MEとバイオサイバネティックス研究会 MBE2010-18, Vol.110, No.120, 13-16, Jul. 2010.
40.	Ryota Kanno, Shinsuke Konaka, Toshiya Okahisa, Masatake Akutagawa and Takahiro Emoto : 大腸内視鏡画像からの血管パラメータ抽出, 電子情報通信学会技術研究報告，MEとバイオサイバネティックス研究会 MBE2010-17, Vol.110, No.120, 7-11, Jul. 2010.
41.	Yusuke Suzuki, Takahiro Emoto, Masatake Akutagawa, Udantha R. Abeyratne, 近藤英司, 川田育二, Shinsuke Konaka and Yohsuke Kinouchi : 自己組織化マップを用いたいびき音のクラスタリングに関する基礎検討, IEICE Technical Report, Vol.109, No.460, 7-12, Mar. 2010.
42.	神野遼太, Shinsuke Konaka, Toshiya Okahisa, Takahiro Emoto and Masatake Akutagawa : 大腸内視鏡画像からの血管抽出の一検討, 電子情報通信学会技術研究報告，MEとバイオサイバネティックス研究会 MBE2009-22, Vol.109, No.123, 17-20, Jul. 2009.
43.	Yusuke Suzuki, Takahiro Emoto, Masatake Akutagawa, Udantha R. Abeyratne, Eiji Kondo, Shinsuke Konaka and Yohsuke Kinouchi : Comparing benign snore with apneic snore based on snoring pattern classification, IEICE Technical Report, Vol.109, No.123, 1-4, Jul. 2009. (Summary) Obstruct sleep apnea (OSA) is diagnosed by the Polysomnography (PSG). However, PSG is inconvenient, expensive and unsuited for community screening. Snoring is the most common symptom of OSA. Recently, snoring sound is divided into apneic and benign snores. These snores should consist of several characteristic patterns such as a pitch. In this paper, we investigate whether the patterns of snoring sound are classified by using SOM (self organized map).
44.	Takahiro Emoto, Udantha R. Abeyratne, Tetsuya Kusumoto, Yusuke Suzuki, Daisuke Hagiwara, Masatake Akutagawa, Shinsuke Konaka and Yohsuke Kinouchi : Inspecting OSA patients for signs of Apnea using the snore sound analysis, IEICE Technical Report, Vol.108, No.126, 11-14, Jul. 2008.
45.	Takahiro Emoto, Udantha R. Abeyratne, Masatake Akutagawa, Hirofumi Nagashino and Yohsuke Kinouchi : 鼾音解析による閉塞型無呼吸症候群に関する新しい診断方法の開発, IEICE Technical Report, Vol.106, No.162, 29-31, Jul. 2006.
46.	Takahiro Emoto, Masatake Akutagawa, Udantha R. Abeyratne, Hirofumi Nagashino and Yohsuke Kinouchi : Estimating the state of the snoring sound using neual networks, IEICE Technical Report, Vol.105, No.222, 49-52, Jul. 2005.
47.	Takahiro Emoto, Masatake Akutagawa, Hirofumi Nagashino and Yohsuke Kinouchi : Evaluation of transition of biological system using BP neural network, IEICE Technical Report, Vol.104, No.54, 37-40, May 2004.

Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)

Bowel sound source localization for evaluation of constipation (Project/Area Number: 23K11947 )
Bowel sound-based approach for objective evaluation of constipation (Project/Area Number: 20K12755 )
Developing automatic sleep sound inspection system towrds the diagnosis of sleep disorders (Project/Area Number: 15K01335 )
Towards an international standard for snore-based obstructive sleep apnea syndrome diagnosis (Project/Area Number: 24700498 )
Analysis of plastic brain activities by EEG measurement and mathematical modeling (Project/Area Number: 24560498 )
Development of a noninvasive colonic and small intestinal motility evaluation system for the diagnosis and optimum treatment of irritable bowel syndrome (Project/Area Number: 22659149 )
Diagnostic support of obstructive sleep apnea based on snoring analysis (Project/Area Number: 21700509 )
ニューラルネットワークを用いた閉塞型無呼吸症候群に関する新しい診断方法の開発 (Project/Area Number: 18800078 )
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Associate Professor : Emoto, Takahiro

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Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)