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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.","ja":"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."},"is_international_presentation":true}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://www.scopus.com/record/display.url?eid=2-s2.0-84886577924&origin=inward","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=275075","label":"url"}],"presentation_title":{"en":"Theoretical study of evaluation method for MRI metal artifact","ja":"Theoretical study of evaluation method for MRI metal artifact"},"presenters":{"en":[{"name":"Sasaki, Yohei"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Tegawa Yoshinori"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"笹木 洋平"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"手川 歓識"},{"name":"木内 陽介"}]},"event":{"en":"Proceedings of 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society","ja":"Proceedings of 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society"},"publication_date":"2013-07-03","invited":true,"languages":["eng"],"location":{"en":"Osaka","ja":"Osaka"},"description":{"en":"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.","ja":"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."},"is_international_presentation":true}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=275074","label":"url"}],"presentation_title":{"en":"Gene expression analysis of Vibrio parahaemolyticus for UV irradiation","ja":"Gene expression analysis of Vibrio parahaemolyticus for UV irradiation"},"presenters":{"en":[{"name":"Hoshiyama, Teppei"},{"name":"Akutagawa Masatake"},{"name":"Aihara, Mutsumi"},{"name":"Hayashida, Mario"},{"name":"Takahashi Akira"},{"name":"Emoto Takahiro"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"星山 哲平"},{"name":"芥川 正武"},{"name":"Aihara, Mutsumi"},{"name":"Hayashida, Mario"},{"name":"髙橋 章"},{"name":"榎本 崇宏"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"BioEM2013","ja":"BioEM2013"},"publication_date":"2013-06-10","languages":["eng"],"location":{"en":"Thessaloniki","ja":"Thessaloniki"},"description":{"en":"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.","ja":"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."},"is_international_presentation":true}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260119","label":"url"}],"presentation_title":{"en":"Automatic Evaluation of Gastrointestinal Motor Activity through the Analysis of Bowel Sounds","ja":"Automatic Evaluation of Gastrointestinal Motor Activity through the Analysis of Bowel Sounds"},"presenters":{"en":[{"name":"Shono Koichi"},{"name":"Emoto Takahiro"},{"name":"Okahisa Toshiya"},{"name":"Abeyratne Udantha"},{"name":"Yano Hiromi"},{"name":"Akutagawa Masatake"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"庄野 弘一"},{"name":"榎本 崇宏"},{"name":"岡久 稔也"},{"name":"Abeyratne Udantha"},{"name":"矢野 弘美"},{"name":"芥川 正武"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"Proceedings of the 10th IASTED International Conference on biomedical engineering(biomed 2013)","ja":"Proceedings of the 10th IASTED International Conference on biomedical engineering(biomed 2013)"},"publication_date":"2013-02","languages":["eng"],"location":{"en":"Austria","ja":"Austria"},"description":{"en":"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.","ja":"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."},"is_international_presentation":true}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260118","label":"url"}],"presentation_title":{"en":"Automatic Snore and Breathing Sound Classification based on the Signal Envelope","ja":"Automatic Snore and Breathing Sound Classification based on the Signal Envelope"},"presenters":{"en":[{"name":"Kashihara Masato"},{"name":"Emoto Takahiro"},{"name":"Abeyratne Udantha"},{"name":"Kawata Ikuji"},{"name":"Akutagawa Masatake"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"樫原 雅人"},{"name":"榎本 崇宏"},{"name":"Abeyratne Udantha"},{"name":"Kawata Ikuji"},{"name":"芥川 正武"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"Proceedings of the 10th IASTED International Conference on biomedical engineering(biomed 2013)","ja":"Proceedings of the 10th IASTED International Conference on biomedical engineering(biomed 2013)"},"publication_date":"2013-02","languages":["eng"],"location":{"en":"Austria","ja":"Austria"},"description":{"en":"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.","ja":"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."},"is_international_presentation":true}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260468","label":"url"}],"presentation_title":{"en":"Improvement of a pipe type UVA-LED sterilizer using a condenser lens","ja":"Improvement of a pipe type UVA-LED sterilizer using a condenser lens"},"presenters":{"en":[{"name":"Ishizaki Masachika"},{"name":"Manabe Yusuke"},{"name":"Aihara Mutsumi"},{"name":"Takahashi Akira"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Kinouchi Yohsuke"},{"name":"Ikehara Toshitaka"}],"ja":[{"name":"石崎 仁愛"},{"name":"Manabe Yusuke"},{"name":"粟飯原 睦美"},{"name":"髙橋 章"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"木内 陽介"},{"name":"池原 敏孝"}]},"event":{"en":"34th Annual Conference of the bioelectromagnetics society (34 BEMS) (Abstract)","ja":"34th Annual Conference of the bioelectromagnetics society (34 BEMS) (Abstract)"},"publication_date":"2012-06-20","invited":true,"languages":["eng"],"location":{"en":"Brisbane","ja":"Brisbane"},"description":{"en":"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.","ja":"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."},"is_international_presentation":true}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260463","label":"url"}],"presentation_title":{"en":"Modulation of slow wave EEG during the auditory recall","ja":"Modulation of slow wave EEG during the auditory recall"},"presenters":{"en":[{"name":"Kim Kyung-Hwa"},{"name":"Shigeta Makoto"},{"name":"Emoto Takahiro"},{"name":"Akutagawa Masatake"},{"name":"Kaji Yoshio"},{"name":"Furukawa Kazuhiko"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"},{"name":"Shichijo Fumio"}],"ja":[{"name":"金 景華"},{"name":"重田 誠"},{"name":"榎本 崇宏"},{"name":"芥川 正武"},{"name":"加治 芳雄"},{"name":"古川 和彦"},{"name":"小中 信典"},{"name":"木内 陽介"},{"name":"七條 文雄"}]},"event":{"en":"World Congress on Medical Physics and Biomedical Engineering (WC2012) (Abstract)","ja":"World Congress on Medical Physics and Biomedical Engineering (WC2012) (Abstract)"},"publication_date":"2012-05-30","invited":true,"languages":["eng"],"promoter":{"en":"IFMBE","ja":"IFMBE"},"location":{"en":"Beijing","ja":"Beijing"},"description":{"en":"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.","ja":"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."},"is_international_presentation":true}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260465","label":"url"}],"presentation_title":{"en":"A computational study of MRI metal artifacts by ferromagnetic dental alloys","ja":"A computational study of MRI metal artifacts by ferromagnetic dental alloys"},"presenters":{"en":[{"name":"Akutagawa Masatake"},{"name":"Ikemoto Takuya"},{"name":"Samejima Hideyuki"},{"name":"Tegawa Yoshinori"},{"name":"Emoto Takahiro"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"芥川 正武"},{"name":"池本 卓矢"},{"name":"鮫島 秀幸"},{"name":"手川 歓識"},{"name":"榎本 崇宏"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"World Congress on Medical Physics and Biomedical Engineering (WC2012) (Abstract)","ja":"World Congress on Medical Physics and Biomedical Engineering (WC2012) (Abstract)"},"publication_date":"2012-05-28","invited":true,"languages":["eng"],"promoter":{"en":"IFMBE","ja":"IFMBE"},"location":{"en":"Beijing","ja":"Beijing"},"description":{"en":"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.","ja":"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."},"is_international_presentation":true}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260466","label":"url"}],"presentation_title":{"en":"Investigation of auditory evoked potentials during attention to the auditory stimulus","ja":"Investigation of auditory evoked potentials during attention to the auditory stimulus"},"presenters":{"en":[{"name":"Yoshida Yukitoshi"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Kaji Yoshio"},{"name":"Shichijo Fumio"},{"name":"Furukawa Kazuhiko"},{"name":"Nagashino Hirofumi"}],"ja":[{"name":"吉田 幸利"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"加治 芳雄"},{"name":"七條 文雄"},{"name":"古川 和彦"},{"name":"長篠 博文"}]},"event":{"en":"World Congress on Medical Physics and Biomedical Engineering (WC2012) (Abstract)","ja":"World Congress 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International Conference on Biomedical and Health Informatics (BHI) 2012"},"publication_date":"2012-01","languages":["eng"],"location":{"en":"Shenzhen","ja":"Shenzhen"},"is_international_presentation":true}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://www.scopus.com/record/display.url?eid=2-s2.0-84864244682&origin=inward","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=244003","label":"url"}],"presentation_title":{"en":"Study on blood flow velocity patterns at carotid using one-dimensional computer simulation of humman arteries","ja":"Study on blood flow velocity patterns at carotid using one-dimensional computer simulation of humman arteries"},"presenters":{"en":[{"name":"Masuda Motoshi"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Kitawaki Tomoki"},{"name":"Kitaoka Kazuyoshi"},{"name":"Tanaka Hiroyuki"},{"name":"Obara Shigeru"},{"name":"Yoshizaki Kazuo"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"増田 基司"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"北脇 知己"},{"name":"北岡 和義"},{"name":"田中 弘之"},{"name":"小原 繁"},{"name":"吉﨑 和男"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"Proceedings of the IEEE-EMBS International Conference on Biomedical and Health Informatics (BHI 2012)","ja":"Proceedings of the IEEE-EMBS International Conference on Biomedical and Health Informatics (BHI 2012)"},"publication_date":"2012-01","languages":["eng"],"location":{"en":"Shenzhen","ja":"Shenzhen"},"description":{"en":"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.","ja":"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."},"is_international_presentation":true}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://www.scopus.com/record/display.url?eid=2-s2.0-84864258384&origin=inward","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=244001","label":"url"}],"presentation_title":{"en":"Evaluating the atherosclerosis based on the blood flow velocity waveform of common carotid artery","ja":"Evaluating the atherosclerosis based on the blood flow velocity waveform of common carotid artery"},"presenters":{"en":[{"name":"Aoyama Koki"},{"name":"Emoto Takahiro"},{"name":"Akutagawa Masatake"},{"name":"Masuda Motoshi"},{"name":"Minato Shota"},{"name":"Obara Shigeru"},{"name":"Yoshizaki Kazuo"},{"name":"Kitaoka Kazuyoshi"},{"name":"Tanaka Hiroyuki"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"青山 弘毅"},{"name":"榎本 崇宏"},{"name":"芥川 正武"},{"name":"増田 基司"},{"name":"湊 翔太"},{"name":"小原 繁"},{"name":"吉﨑 和男"},{"name":"北岡 和義"},{"name":"田中 弘之"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"Proceedings of the IEEE-EMBS International Conference on Biomedical and Health Informatics (BHI 2012)","ja":"Proceedings of the IEEE-EMBS International Conference on Biomedical and Health Informatics (BHI 2012)"},"publication_date":"2012-01","languages":["eng"],"location":{"en":"Shenzhen","ja":"Shenzhen"},"description":{"en":"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.","ja":"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."},"is_international_presentation":true}} 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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.","ja":"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."},"is_international_presentation":true}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=188708","label":"url"}],"presentation_title":{"en":"Investigation of a Classification about Time Series Signal Using SOM","ja":"Investigation of a Classification about Time Series Signal Using SOM"},"presenters":{"en":[{"name":"Nitta Yoshinori"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Okahisa Toshiya"},{"name":"Miyamoto Hiroshi"},{"name":"Ohnishi Yoshiaki"},{"name":"Nishimura Masaji"},{"name":"Nakane Shunya"},{"name":"Kaji Ryuji"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"新田 佳伯"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"岡久 稔也"},{"name":"宮本 弘志"},{"name":"大西 芳明"},{"name":"西村 匡司"},{"name":"中根 俊成"},{"name":"梶 龍兒"},{"name":"木内 陽介"}]},"event":{"en":"The 13th International Conference on Biomedical Engineering","ja":"The 13th International Conference on Biomedical Engineering"},"publication_date":"2008-12-03","languages":["eng"],"location":{"en":"Singapore","ja":"Singapore"},"is_international_presentation":true}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=179161","label":"url"}],"presentation_title":{"en":"A Study on Gigabit Laser Driver Circuit with RC Shunt Circuit for LD Current Waveform Correction","ja":"A Study on Gigabit Laser Driver Circuit with RC Shunt Circuit for LD Current Waveform Correction"},"presenters":{"en":[{"name":"Emoto Takahiro"},{"name":"Konaka Shinsuke"},{"name":"Akutagawa Masatake"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"榎本 崇宏"},{"name":"小中 信典"},{"name":"芥川 正武"},{"name":"木内 陽介"}]},"event":{"en":"Proceedings of International Conference On Advanced Infocomm Technology 2008","ja":"Proceedings of International Conference On Advanced Infocomm Technology 2008"},"publication_date":"2008-07-28","languages":["eng"],"location":{"en":"Shenzhen, China","ja":"Shenzhen, China"},"description":{"en":"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.","ja":"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."},"is_international_presentation":true}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://www.scopus.com/record/display.url?eid=2-s2.0-57649188047&origin=inward","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=164159","label":"url"}],"presentation_title":{"en":"Feature Extraction for Snore Sound via Neural Network Processing","ja":"Feature Extraction for Snore Sound via Neural Network Processing"},"presenters":{"en":[{"name":"Emoto Takahiro"},{"name":"Akutagawa Masatake"},{"name":"Nagashino Hirofumi"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"榎本 崇宏"},{"name":"芥川 正武"},{"name":"長篠 博文"},{"name":"木内 陽介"}]},"event":{"en":"29th IEEE EMBS Annual International Conference","ja":"29th IEEE EMBS Annual International Conference"},"publication_date":"2007-08-23","languages":["eng"],"location":{"en":"Lyon, France","ja":"Lyon, France"},"description":{"en":"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. 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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. 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apparatus","ja":"測定装置の違いによる頸動脈血流速度波形の比較"},"presenters":{"en":[{"name":"Terai Yuki"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Kitaoka Kazuyoshi"},{"name":"Tanaka Hiroyuki"},{"name":"Kinouchi Yohsuke"},{"name":"Konaka Shinsuke"}],"ja":[{"name":"寺井 優輝"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"北岡 和義"},{"name":"田中 弘之"},{"name":"木内 陽介"},{"name":"小中 信典"}]},"event":{"en":"2018 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers (EHIME)","ja":"平成30年度電気関係学会四国支部連合大会講演論文集(2018 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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.","ja":"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."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=358417","label":"url"}],"presentation_title":{"en":"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","ja":"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"},"presenters":{"en":[{"name":"臼杵 拓哉"},{"name":"Emoto Takahiro"}],"ja":[{"name":"臼杵 拓哉"},{"name":"榎本 崇宏"}]},"event":{"en":"第24回 日本摂食嚥下リハビリテーション学会学術大会","ja":"第24回 日本摂食嚥下リハビリテーション学会学術大会"},"publication_date":"2018-09","languages":["jpn"],"is_international_presentation":false}} 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Japanese Society for Medical and Biological Engineering","ja":"生体医工学"},"publication_date":"2018-06","languages":["jpn"],"promoter":{"en":"Japan Society of Medical Electronics and Biological Engineering","ja":"社団法人 日本生体医工学会"},"location":{"en":"Tokushima","ja":"徳島"},"description":{"en":"
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.
","ja":"徳島大学ライフオプティクス研究プロジェクトでは学内外の研究者の様々なアプローチによる光と生命に関する研究を進めている.著者らは治療抵抗性のT細胞リンパ種の患者の血液に光照射を行う治療法に着目し機器の小型化,光照射による血液への影響のメカニズムの解明,等に繋がることを目指しラットに対し体外循環血液に光を照射した際の影響を調べる研究を行った.実験ではSDラットに対し麻酔下で血液を体外に導出し返還する循環回路に波長の異なるLight Emitting Diode (LED)光を照射する実験システムを作りその影響を追跡した.LED素子は365nm(UVA光),465nm(青色光),525nm(青緑色光)のピーク波長をもつ3種を用いた.対照実験として無照射状態で血液の体外循環実験を行う群を設け365nm,465nm,525 nm の各波長毎に照射群を設定した.影響の指標として各実験の体外循環・光照射実験前後の血液検査値,白血球分画,各実験群間の実験後の生存率を比較した.今回は無照射群7例,465nm (電流量40mAでの照射群9例と 400mAでの照射群11例),365nm (400mA)の照射群3例,525nm (400mA)2例の実験結果を得た.統計的解析ではRによるWilcoxonのT検定(P<0.05の時有意差有)を行った.各群の体外循環・光照射実験の前後の値を比較したところ,いずれの群にも有意差は見られなかった.また各群間の血液検査値の増減率に注目したところ照射波長に特有な影響があることが推測された.
"},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=336314","label":"url"}],"presentation_title":{"en":"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","ja":"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"},"presenters":{"en":[{"name":"Honda Eiichi"},{"name":"Ito Teruaki"},{"name":"Kinouchi Yohsuke"},{"name":"Ichikawa Tetsuo"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Yoshida Midori"}],"ja":[{"name":"誉田 栄一"},{"name":"伊藤 照明"},{"name":"木内 陽介"},{"name":"市川 哲雄"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"吉田 みどり"}]},"event":{"en":"LED総合フォーラム2018 in 徳島","ja":"LED総合フォーラム2018 in 徳島"},"publication_date":"2018-02-12","languages":["jpn"],"location":{"en":"Tokushima","ja":"徳島"},"is_international_presentation":false}} 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method of optimal probe position during measurement of the carotid arterial blood flow velocity using the ultrasonic doppler","ja":"超音波ドプラ法を用いた頸動脈血流速度測定時の最適プローブ位置の探索法"},"presenters":{"en":[{"name":"Tominaga Takayuki"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Kitaoka Kazuyoshi"},{"name":"Tanaka Hiroyuki"},{"name":"Kinouchi Yohsuke"},{"name":"Konaka Shinsuke"}],"ja":[{"name":"富永 隆之"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"北岡 和義"},{"name":"田中 弘之"},{"name":"木内 陽介"},{"name":"小中 信典"}]},"event":{"en":"2017 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers (EHIME)","ja":"平成29年度電気関係学会四国支部連合大会講演論文集(2017 愛媛大学)"},"publication_date":"2017-09-23","languages":["jpn"],"location":{"en":"Matsuyama","ja":"松山"},"is_international_presentation":false}} 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愛媛大学)"},"publication_date":"2017-09-23","languages":["jpn"],"location":{"en":"Matsuyama","ja":"松山"},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=334861","label":"url"}],"presentation_title":{"en":"Investigation of blood vessel extraction method from a Narrow-Band Imaging(NBI) in the endoscopic image","ja":"狭帯域光(NBI)内視鏡画像からの血管抽出法の検討"},"presenters":{"en":[{"name":"Myoga Noriyuki"},{"name":"Konaka Shinsuke"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"}],"ja":[{"name":"明賀 法之"},{"name":"小中 信典"},{"name":"芥川 正武"},{"name":"榎本 崇宏"}]},"event":{"en":"2017 Shikoku-Section Joint Convention Record of the Institutes of Electrical and Related Engineers (EHIME)","ja":"平成29年度電気関係学会四国支部連合大会講演論文集(2017 愛媛大学)"},"publication_date":"2017-09-23","languages":["jpn"],"location":{"en":"Matsuyama","ja":"松山"},"is_international_presentation":false}} 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{"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=336458","label":"url"}],"presentation_title":{"en":"磁気センサを用いた自動反復唾液嚥下テストの小型化","ja":"磁気センサを用いた自動反復唾液嚥下テストの小型化"},"presenters":{"en":[{"name":"Asano Junya"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Shichijo Fumio"}],"ja":[{"name":"浅野 純弥"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"七條 文雄"}]},"event":{"en":"Program and Abstract book of the 23th Annual Meeting of the Japanese Society of Dysphagia Rehabilitation","ja":"第23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"},"publication_date":"2017-09-15","languages":["jpn"],"promoter":{"en":"The Japanese Society of Dysphagia Rehabilitation","ja":"日本摂食嚥下リハビリテーション学会"},"location":{"en":"Chiba","ja":"千葉"},"description":{"en":"【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.","ja":"【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."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=321016","label":"url"}],"presentation_title":{"en":"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","ja":"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"},"presenters":{"en":[{"name":"Uyama Mayu"},{"name":"Sogabe Masahiro"},{"name":"平田 光里"},{"name":"Nakagawa Tadahiko"},{"name":"Fukuya Akira"},{"name":"Teramae Satoshi"},{"name":"Fujimoto Daisaku"},{"name":"Tanaka Hironori"},{"name":"Mitsui Yasuhiro"},{"name":"Kitamura Shinji"},{"name":"Okamoto Koichi"},{"name":"Takayama Tetsuji"},{"name":"Shimohata Takaaki"},{"name":"Uebanso Takashi"},{"name":"Mawatari Kazuaki"},{"name":"Takahashi Akira"},{"name":"Emoto Takahiro"},{"name":"Akutagawa 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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.","ja":"MRIの普及に伴い体内の磁性金属による金属アーチファクトの影響が問題となっている.頭部および頸部の画像化において,磁性金属によるアーチファクトとして問題になることが多く,診断の妨げとなる.一方,磁気アタッチメントを用いた義歯は高齢者への利用が広がっている.磁気アタッチメントは,磁石構造体とキーパーとからなり,キーパーは口腔内に固定される.キーパーの撤去は困難であり,患者への負担も大きい.キーパーの磁化によってMR画像に金属アーチファクトが生じる.アーチファクトにより信号損失および幾何学的歪みが生じ,画像診断が困難となる.本研究の目的は,キーパーによる金属アーチファクトの影響範囲を表す指標を提案することである.磁気ダイポールおよびMRI原理に基づく計算機シミュレーションを用いて,金属アーチファクトを含むMR画像を求めることができる.モーメントはキーパー形状と材質により計算できる.そこで磁化されたキーパーによるMRIの効果を定量化し,それらの結果を実測画像およびシミュレート画像と比較した.金属アーチファクトは強度歪みと幾何学歪みとからなるが,本研究では幾何学的歪みによるアーチファクトに注目した.格子状ファントムを使用して幾何学的アーチファクトを表し,実測画像およびシミュレートされた画像でそれぞれを定量化した.その結果,測定画像とシミュレーション画像の歪みの差は約2mm以内であった.このように,MRIのキーパーは磁気ダイポールとして扱うことができ,磁気モーメントはキーパーによるアーチファクトの効果を表すのに有用であることが確認された."},"is_international_presentation":false}} 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{"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=287022","label":"url"}],"presentation_title":{"en":"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","ja":"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"},"presenters":{"en":[{"name":"Osaki Ryuki"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Kaji Yoshio"},{"name":"Shichijo Fumio"},{"name":"Furukawa Kazuhiko"},{"name":"Nagashino Hirofumi"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"大崎 竜輝"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"加治 芳雄"},{"name":"七條 文雄"},{"name":"古川 和彦"},{"name":"長篠 博文"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related 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Mutsumi"},{"name":"Hayashida Marhio"},{"name":"Takahashi Akira"},{"name":"Mawatari Kazuaki"},{"name":"Ikehara Toshitaka"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"星山 哲平"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"中橋 睦美"},{"name":"林田 麻里王"},{"name":"髙橋 章"},{"name":"馬渡 一諭"},{"name":"池原 敏孝"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers","ja":"電気関係学会四国支部連合大会講演論文集"},"publication_date":"2014-09-13","languages":["jpn"],"location":{"en":"Tokushima","ja":"徳島"},"description":{"en":"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.","ja":"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."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=287017","label":"url"}],"presentation_title":{"en":"S状結腸の電気的活動シミュレーション","ja":"S状結腸の電気的活動シミュレーション"},"presenters":{"en":[{"name":"河野 正樹"},{"name":"Emoto Takahiro"},{"name":"Okahisa Toshiya"},{"name":"Sogabe Masahiro"},{"name":"Akutagawa Masatake"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"河野 正樹"},{"name":"榎本 崇宏"},{"name":"岡久 稔也"},{"name":"曽我部 正弘"},{"name":"芥川 正武"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers","ja":"電気関係学会四国支部連合大会講演論文集"},"publication_date":"2014-09-13","languages":["jpn"],"location":{"en":"Tokushima","ja":"徳島"},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=287016","label":"url"}],"presentation_title":{"en":"楽音特徴照合結果に対する位置一致の検証","ja":"楽音特徴照合結果に対する位置一致の検証"},"presenters":{"en":[{"name":"原田 圭章"},{"name":"Konaka Shinsuke"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"}],"ja":[{"name":"原田 圭章"},{"name":"小中 信典"},{"name":"芥川 正武"},{"name":"榎本 崇宏"}]},"event":{"en":"Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers","ja":"電気関係学会四国支部連合大会講演論文集"},"publication_date":"2014-09-13","languages":["jpn"],"location":{"en":"Tokushima","ja":"徳島"},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=286345","label":"url"}],"presentation_title":{"en":"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","ja":"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"},"presenters":{"en":[{"name":"大野 雅也"},{"name":"Konaka Shinsuke"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"}],"ja":[{"name":"大野 雅也"},{"name":"小中 信典"},{"name":"芥川 正武"},{"name":"榎本 崇宏"}]},"event":{"en":"Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers","ja":"電気関係学会四国支部連合大会講演論文集"},"publication_date":"2014-09-13","languages":["jpn"],"location":{"en":"Tokushima","ja":"徳島"},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=286344","label":"url"}],"presentation_title":{"en":"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","ja":"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"},"presenters":{"en":[{"name":"山西 悠也"},{"name":"Konaka Shinsuke"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"}],"ja":[{"name":"山西 悠也"},{"name":"小中 信典"},{"name":"芥川 正武"},{"name":"榎本 崇宏"}]},"event":{"en":"Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers","ja":"電気関係学会四国支部連合大会講演論文集"},"publication_date":"2014-09-13","languages":["jpn"],"location":{"en":"Tokushima","ja":"徳島"},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=286343","label":"url"}],"presentation_title":{"en":"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","ja":"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"},"presenters":{"en":[{"name":"清水 椋介"},{"name":"Konaka Shinsuke"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"}],"ja":[{"name":"清水 椋介"},{"name":"小中 信典"},{"name":"芥川 正武"},{"name":"榎本 崇宏"}]},"event":{"en":"Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers","ja":"電気関係学会四国支部連合大会講演論文集"},"publication_date":"2014-09-13","languages":["jpn"],"location":{"en":"Tokushima","ja":"徳島"},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=286342","label":"url"}],"presentation_title":{"en":"細線化血管特徴値による大腸炎病態評価について","ja":"細線化血管特徴値による大腸炎病態評価について"},"presenters":{"en":[{"name":"尾崎 敬太"},{"name":"Konaka Shinsuke"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"}],"ja":[{"name":"尾崎 敬太"},{"name":"小中 信典"},{"name":"芥川 正武"},{"name":"榎本 崇宏"}]},"event":{"en":"Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers","ja":"電気関係学会四国支部連合大会講演論文集"},"publication_date":"2014-09-13","languages":["jpn"],"location":{"en":"Tokushima","ja":"徳島"},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=288462","label":"url"}],"presentation_title":{"en":"Gene expression analysis of Vibrio parahaemolyticus for the light irradiation","ja":"異なる波長の光照射に対する腸炎ビブリオの遺伝子発現解析"},"presenters":{"en":[{"name":"Hoshiyama Teppei"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Nakahashi Mutsumi"},{"name":"Hayashida Marhio"},{"name":"Takahashi Akira"},{"name":"Mawatari Kazuaki"},{"name":"Ikehara Toshitaka"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"星山 哲平"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"中橋 睦美"},{"name":"林田 麻里王"},{"name":"髙橋 章"},{"name":"馬渡 一諭"},{"name":"池原 敏孝"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report (MBE)","ja":"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)"},"publication_date":"2014-07-26","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Okayama","ja":"岡山"},"description":{"en":"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.","ja":"本研究は細菌へどのような光を照射すると, どのような機能が活性されるかについて考察するものである. 現在, 光照射が細菌にもたらす影響が多数報告されており, 例えば紫外(UV)照射を行う事で殺菌効果が得られ, 可視光照射では光受容体という機能の存在が示されている. 本研究では, このような異なる波長の光照射に対する細菌への影響を, 遺伝子発現解析により考察した. その結果, UV及び可視光の各波長の光照射時について変動の見られた腸炎ビブリオ遺伝子を特定する事ができた. また, 520nmの光を腸炎ビブリオに照射すると, 腸炎ビブリオの鞭毛遊走機能が活性化される可能性が示唆された."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=288461","label":"url"}],"presentation_title":{"en":"Synchronization Analysis using the Hilbert Huang Coherence","ja":"Hilbert Huang Coherenceを用いた同期度解析"},"presenters":{"en":[{"name":"Kondo Eiji"},{"name":"Nakahira Yuya"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Kaji Yoshio"},{"name":"Shichijo Fumio"},{"name":"Furukawa Kazuhiko"},{"name":"Nagashino Hirofumi"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"近藤 詠二"},{"name":"中平 雄哉"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"加治 芳雄"},{"name":"七條 文雄"},{"name":"古川 和彦"},{"name":"長篠 博文"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report (MBE)","ja":"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)"},"publication_date":"2014-07-26","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Okayama","ja":"岡山"},"description":{"en":"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.","ja":"従来の時間・周波数解析では周波数分解能と時間分解能の間でトレードオフの関係がある.そこで,高い時間・周波数分解能を持つHilbert Huang変換を用いてCoherenceを解析するHilbert Huang Coherence(HHC)という手法が先行研究で提案された.本研究では,HHCの有効性を検証することを目的としている.まず,簡単な非定常信号を用いたシミュレーションに対してHHCを用いることで,従来のCoherence解析では時間または周波数の分解能が不十分となる短い時間区間での解析において従来の方法に比べて高い時間・周波数分解能を持って解析できることがわかった.また,短い時間区間での脳波の$alpha$波の解析においてHHCを用いることで,従来のCoherence解析法に比べて良好な解析結果が得られた."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=288459","label":"url"}],"presentation_title":{"en":"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","ja":"電極数とその配置法が脳内信号源推定精度に与える影響についての検討 --- 国際式10-20電極配置法と偏在型電極配置法の比較"},"presenters":{"en":[{"name":"Osaki Ryuki"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Kaji Yoshio"},{"name":"Shichijo Fumio"},{"name":"Furukawa Kazuhiko"},{"name":"Nagashino Hirofumi"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"大崎 竜輝"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"加治 芳雄"},{"name":"七條 文雄"},{"name":"古川 和彦"},{"name":"長篠 博文"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report (MBE)","ja":"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)"},"publication_date":"2014-07-26","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Okayama","ja":"岡山"},"description":{"en":"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.","ja":"脳から発する外部刺激に対しての恒常的な誘発電位は,臨床的には病気診断支援や手術中の脳機能のモニタリングに用いられる.しかし,脳波(EEG)は頭蓋骨や頭皮によって散乱した電位を記録するものであるため,空間的な分解能を確保することが難しい.そこで,本研究では国際式 10-20 電極配置法と LELES(Left Eccentrically Located Electrode System)で信号源推定をおこない,推定精度の比較を行った.信号源推定シミュレーションでは,LELES による推定の方が結果のばらつきが小さくなった.また SEP を含む EEG に対して各推定法を適用すると,国際式 10-20 電極配置法による結果が脳の下部や運動野領域にも現れるのに対し,LELES による推定結果は体性感覚野近傍に現れることがわかった."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=275126","label":"url"}],"presentation_title":{"en":"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","ja":"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"},"presenters":{"en":[{"name":"大塚 加奈子"},{"name":"Okahisa Toshiya"},{"name":"Takayama Tetsuji"},{"name":"香川 美和子"},{"name":"Emoto Takahiro"}],"ja":[{"name":"大塚 加奈子"},{"name":"岡久 稔也"},{"name":"高山 哲治"},{"name":"香川 美和子"},{"name":"榎本 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{"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=287012","label":"url"}],"presentation_title":{"en":"薬剤投与下における腸音解析の基礎的検討","ja":"薬剤投与下における腸音解析の基礎的検討"},"presenters":{"en":[{"name":"難波 和樹"},{"name":"Emoto Takahiro"},{"name":"Okahisa Toshiya"},{"name":"Abeyratne Udantha"},{"name":"Akutagawa Masatake"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"難波 和樹"},{"name":"榎本 崇宏"},{"name":"岡久 稔也"},{"name":"Abeyratne Udantha"},{"name":"芥川 正武"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers","ja":"電気関係学会四国支部連合大会講演論文集"},"publication_date":"2013-09","languages":["jpn"],"location":{"en":"Tokushima","ja":"徳島"},"is_international_presentation":false}} 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{"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"http://id.ndl.go.jp/bib/024742990","label":"url"},{"@id":"https://cir.nii.ac.jp/crid/1520853834114624768/","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=275082","label":"url"}],"presentation_title":{"en":"Analysis of EEG synchronization during bimanual tapping using the Hilbert-Huang transform","ja":"Hilbert-Huang変換を用いた両手協調運動時の脳波同期度解析"},"presenters":{"en":[{"name":"Akutagawa Masatake"},{"name":"Yuya Nakahira"},{"name":"Emoto Takahiro"},{"name":"Kaji Yoshio"},{"name":"Shichijo Fumio"},{"name":"Furukawa Kazuhiko"},{"name":"Nagashino Hirofumi"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"芥川 正武"},{"name":"中平 雄哉"},{"name":"榎本 崇宏"},{"name":"加治 芳雄"},{"name":"七條 文雄"},{"name":"古川 和彦"},{"name":"長篠 博文"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report (MBE)","ja":"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)"},"publication_date":"2013-07-19","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Tokushima","ja":"徳島"},"description":{"en":"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.","ja":"複雑な両手協調運動時には補足運動野と1次運動野が協調して活動していると考えられる.本研究では被験者に両手の左右の周期が一致しないポリリズムタッピングを課した際の脳波について,複数電極間の同期度を評価するHilbert Huang Coherenceを提案している.タッピング周期を短くすると,簡単な周期の比に引き込まれる現象が知られているが,100ms程度の周期になると,従来のCoherence解析では時間あるいは周波数の分解能が不十分となることもある.提案法はHilbert Huang変換を用いる手法であり,時間分解能,周波数分解能がともに良好である.簡単な非定常信号で有用性を確認し,両手同時タッピングと3:2ポリリズムタッピングを行った際の電極間の脳波の同期度を調査したが,タスク間で顕著な違いは見られなかった."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"http://id.ndl.go.jp/bib/024743001","label":"url"},{"@id":"https://cir.nii.ac.jp/crid/1520853832296266624/","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=275081","label":"url"}],"presentation_title":{"en":"Analysis of state change of nonlinear systems using neural networks : Analysis of the connection weights by principal component analysis","ja":"ニューラルネットワークを用いた非線形システムの状態変化の指標化 : 主成分分析による結合荷重の解析"},"presenters":{"en":[{"name":"Yoshihiro Kinouchi"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Nagashino Hirofumi"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"木内 敬浩"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"長篠 博文"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report (MBE)","ja":"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)"},"publication_date":"2013-07-19","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Tokushima","ja":"徳島"},"description":{"en":"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.","ja":"生体システムは,非線形システムでありそのシステムの特徴を捉えるためにシステムの非線形性を考慮に入れる必要がある.非線形システムの解析手法としてニューラルネットワーク(以下 NN)を用いる事で,非線形システムの状態を捉える方法が報告されている.しかしながら,この方法を脳波解析に適用した場合,脳波をモデル化するために比較的大きなネットワークが必要である.本研究では,生体システムの状態変化を捉えるため既知の非線形システムの状態変化を,生体システムの状態変化のシミュレーションとして,NNで学習を行う.学習後の結合荷重の変化からシステムの状態変化を推定し指標化する.また,本研究ではNNの構造が大きくなり結合荷重数が増えると,評価が見づらくなる問題に対して主成分分析を用いて改善を検討する."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=259327","label":"url"}],"presentation_title":{"en":"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","ja":"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"},"presenters":{"en":[{"name":"高岡 遠"},{"name":"Okahisa Toshiya"},{"name":"香川 美和子"},{"name":"岡田 泰行"},{"name":"宮本 佳彦"},{"name":"田中 貴大"},{"name":"津田 美穂"},{"name":"友成 哲"},{"name":"Goji Takahiro"},{"name":"Yano Hiromi"},{"name":"Kitamura Shinji"},{"name":"Okamoto Koichi"},{"name":"Miyamoto Hiroshi"},{"name":"Muguruma Naoki"},{"name":"Takayama Tetsuji"},{"name":"Emoto Takahiro"}],"ja":[{"name":"高岡 遠"},{"name":"岡久 稔也"},{"name":"香川 美和子"},{"name":"岡田 泰行"},{"name":"宮本 佳彦"},{"name":"田中 貴大"},{"name":"津田 美穂"},{"name":"友成 哲"},{"name":"郷司 敬洋"},{"name":"矢野 弘美"},{"name":"北村 晋志"},{"name":"岡本 耕一"},{"name":"宮本 弘志"},{"name":"六車 直樹"},{"name":"高山 哲治"},{"name":"榎本 崇宏"}]},"event":{"en":"第9回日本消化管学会総会学術集会","ja":"第9回日本消化管学会総会学術集会"},"publication_date":"2013-01-25","languages":["jpn"],"location":{"en":"Tokyo","ja":"東京"},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260493","label":"url"}],"presentation_title":{"en":"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","ja":"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"},"presenters":{"en":[{"name":"Emoto Takahiro"},{"name":"Abeyratne Udantha"},{"name":"Chen Yongjian"},{"name":"Kawata Ikuji"},{"name":"Akutagawa Masatake"},{"name":"Kinouchi Yohsuke"},{"name":"Konaka Shinsuke"}],"ja":[{"name":"榎本 崇宏"},{"name":"Abeyratne Udantha"},{"name":"陳 永健"},{"name":"川田 育二"},{"name":"芥川 正武"},{"name":"木内 陽介"},{"name":"小中 信典"}]},"event":{"en":"第35回日本生体医工学会中国四国支部大会 講演抄録","ja":"第35回日本生体医工学会中国四国支部大会 講演抄録"},"publication_date":"2012-10-29","languages":["jpn"],"location":{"en":"Ube","ja":"宇部"},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260491","label":"url"}],"presentation_title":{"en":"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","ja":"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"},"presenters":{"en":[{"name":"Inoko Takuto"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"},{"name":"Morimoto Tadaoki"},{"name":"Tangoku Akira"},{"name":"Okazaki Kenji"},{"name":"Yasuno Emiko"},{"name":"Takahashi Tomoya"},{"name":"Iwami Seiji"}],"ja":[{"name":"猪子 拓人"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"小中 信典"},{"name":"木内 陽介"},{"name":"森本 忠興"},{"name":"丹黒 章"},{"name":"岡﨑 憲二"},{"name":"安野 恵実子"},{"name":"高橋 知也"},{"name":"岩見 誠治"}]},"event":{"en":"第35回日本生体医工学会中国四国支部大会 講演抄録","ja":"第35回日本生体医工学会中国四国支部大会 講演抄録"},"publication_date":"2012-10-29","languages":["jpn"],"location":{"en":"Ube","ja":"宇部"},"description":{"en":"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.","ja":"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."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260486","label":"url"}],"presentation_title":{"en":"Design of Cognitive Engine for Cognitive Radio basing on PSO and Data Base","ja":"Design of Cognitive Engine for Cognitive Radio basing on PSO and Data Base"},"presenters":{"en":[{"name":"Yang Yi"},{"name":"Konaka Shinsuke"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"}],"ja":[{"name":"Yang Yi"},{"name":"小中 信典"},{"name":"芥川 正武"},{"name":"榎本 崇宏"}]},"event":{"en":"Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers","ja":"Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers"},"publication_date":"2012-09-29","invited":true,"languages":["eng"],"location":{"en":"Takamatsu","ja":"Takamatsu"},"description":{"en":"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.","ja":"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."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260485","label":"url"}],"presentation_title":{"en":"Elevation on the retention force of a Cup-yoke type magnetic attachment","ja":"カップヨーク型磁性アタッチメントの復元力を向上に関する検討"},"presenters":{"en":[{"name":"Aggrey Kaliba"},{"name":"Akutagawa Masatake"},{"name":"Tegawa Yoshinori"},{"name":"Kinouchi Yohsuke"},{"name":"Emoto Takahiro"}],"ja":[{"name":"Kaliba Aggrey"},{"name":"芥川 正武"},{"name":"手川 歓識"},{"name":"木内 陽介"},{"name":"榎本 崇宏"}]},"event":{"en":"Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related 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{"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=402651","label":"url"}],"presentation_title":{"en":"Measurement of Laryngeal Prominence During Swallowing Using Magnetic Sensors","ja":"磁気センサを用いた嚥下時の喉頭隆起運動測定"},"presenters":{"en":[{"name":"Akutagawa Masatake"},{"name":"Tagami Daichi"},{"name":"Emoto Takahiro"},{"name":"Shichijo Fumio"},{"name":"Kaji Yoshio"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"芥川 正武"},{"name":"田上 大地"},{"name":"榎本 崇宏"},{"name":"七條 文雄"},{"name":"加治 芳雄"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report (MBE)","ja":"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)"},"publication_date":"2023-07-15","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"description":{"en":"Swallowing is one of the most important functions for a healthy life. 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It is necessary to consider further improvement of accuracy and interpretation of measurement results.","ja":"嚥下運動は健常な生活を送るうえで必須の機能だが,何らかの原因で嚥下運動に障害が起こると栄養状態の悪化,誤嚥性肺炎の発症など重篤な疾患につながることもある.嚥下障害患者に対して様々なリハビリテーションが実施されるが,その際嚥下運動の「よさ」を表す客観的な指標があると有用である.本研究では喉頭隆起付近の皮膚表面にネオジム磁石を取り付け,胸骨の頚切痕付近に固定した2個の3次元磁気センサで磁束密度の変化を測定し,磁石の動きを推定することを試みた. 計算機シミュレーションおよび実験により検証した結果,誤差は含まれるもののおおよその動きは測定できることが示された.特に実測における回転運動の推定からは嚥下のタイミングを良好に示した.ただし何らかの条件下では十分な推定結果を得ることができないこともあった.さらなる精度向上と測定結果の解釈について検討することが必要である."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=402655","label":"url"}],"presentation_title":{"en":"Study on the relationship between features of carotid artery blood flow velocity waveforms and arteriosclerosis using autoencoder","ja":"オートエンコーダを用いた頸動脈血流速度波形の特徴量と動脈硬化症の関連性に関する研究"},"presenters":{"en":[{"name":"Matsugi Yuki"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Kitaoka Kazuyoshi"},{"name":"Tanaka Hiroyuki"},{"name":"Yamada Hirotsugu"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"松木 勇樹"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"北岡 和義"},{"name":"田中 弘之"},{"name":"山田 博胤"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report (MBE)","ja":"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)"},"publication_date":"2023-03-06","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"description":{"en":"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. 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This result suggests that the feature values obtained by the autoencoder may serve as indicators for evaluating the progression of arteriosclerosis.","ja":"近年,日本国内における死亡原因の約25%は脳梗塞,心疾患などの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.本研究グループでは循環器系の血行動態を調べる簡便な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(UDBV,Ultrasonic Doppler Blood Velocimeter)の開発に取り組んでいる. これまで,運動効果や加齢による波形の違いが現れることが解明されてきた.しかし,動脈硬化と血流速度波形の関連性は十分に明らかではない.そこで,本研究では動脈硬化症の進行度を評価判定することを目標に,動脈硬化症患者と健常者を対象として,総頸動脈の血流速度波形の比較を行った.その結果からオートエンコーダで得られた特徴量が動脈硬化の進行度を評価できる指標である可能性が示唆された."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=390766","label":"url"}],"presentation_title":{"en":"Examining the relationship between detection rate of steady state visual evoked potential and basic rhythm","ja":"定常状態視覚誘発電位(SSVEP)の検出率と基礎律動の関連性検討"},"presenters":{"en":[{"name":"Yoshimura Keisuke"},{"name":"Akutagawa Masatake"},{"name":"Emoto 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{"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=370702","label":"url"}],"presentation_title":{"en":"Effect of Sterilization and Bone Formation by Applying High Frequency Voltage","ja":"高周波電圧印加による殺菌と骨形成への影響"},"presenters":{"en":[{"name":"Yamaguchi Shunsuke"},{"name":"Taketani Hideo"},{"name":"Akutagawa Masatake"},{"name":"Yumoto Hiromichi"},{"name":"Hirao Kouji"},{"name":"Emoto Takahiro"},{"name":"Tarao Hiroo"},{"name":"Tominaga Tosihiko"},{"name":"Ikehara Toshitaka"},{"name":"Yasuno Emiko"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"山口 舜祐"},{"name":"竹谷 英雄"},{"name":"芥川 正武"},{"name":"湯本 浩通"},{"name":"平尾 功治"},{"name":"榎本 崇宏"},{"name":"太良尾 浩生"},{"name":"富永 敏彦"},{"name":"池原 敏孝"},{"name":"安野 恵実子"},{"name":"木内 陽介"}]},"event":{"en":"LED総合フォーラム2020 in 徳島","ja":"LED総合フォーラム2020 in 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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.","ja":"脳波(EEG)計測は低侵襲かつ時間分解能に優れた脳機能計測であり,他の計測法と比べ装置が小型かつ安価であるため,設置環境が制限されず可搬性にも優れている.また,EEGから信号源である賦活部位を推定する技術はBrain Machine Interface(BMI)などへの応用が期待されている.しかし,EEGを用いて脳内の信号源を推定する場合非常に多くの電極数が必要であり,コストの削減や装着時間の短縮が課題となっている. 本研究では左体性感覚野を対象領野に選び,右正中神経を電気刺激して誘発される体性感覚誘発電位(SEP)を用いて信号源推定を行った.また,電極配置法に国際10-20法と局在電極配置法(LEL)でそれぞれSEPを記録した.さらに,右尺骨神経に対しても同様に電気刺激を行いSEPを記録,それらをsLORETAを用いて信号源推定し,推定結果を比較することでLELの有用性を検討する."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=370721","label":"url"}],"presentation_title":{"en":"Improvement of noise resistance of blood flow velocity measurement using ultrasonic Doppler 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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.","ja":"人が記憶や認知といった高次の人間活動を行う際に異なる脳部位から同時刻,同周波数の脳波が発生と いう報告がある.この脳の同期現象は記憶や認知のメカニズムに関連するといわれている.本研究グループでは脳 の同期現象を捉える手段として Hilbert Huang 変換を応用した Coherence 解析,Hilbert Huang Coherence(HHC) を 提案し,脳の同期現象に関する解析を行っている.本研究では,HHC の有効性を計算機シミュレーションにより検 討した.その結果,混在する各周波数が2倍程度離れている信号に対する解析において HHC は従来の Fourier 変換 と Wavelet 変換を用いた Coherence 解析よりも同期時刻および同期周波数を推定する能力に優れることが判明した."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=336459","label":"url"}],"presentation_title":{"en":"Cliical impact of light emittng diode on digestive diseases","ja":"消化器疾患におけるlight emitting diodeのインパクト"},"presenters":{"en":[{"name":"Morine Yuji"},{"name":"Yoshikawa Kouzou"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Shimada Mitsuo"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"森根 裕二"},{"name":"吉川 幸造"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"島田 光生"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report (MBE)","ja":"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)"},"publication_date":"2017-07-29","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Tokushima","ja":"徳島"},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"http://ci.nii.ac.jp/naid/40020908027/","label":"url"},{"@id":"https://cir.nii.ac.jp/crid/1520009408873304960/","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=322862","label":"url"}],"presentation_title":{"en":"Bioelectrical impedance measurement device using the electrode switching circuit","ja":"電極位置切り替え機能を実装した生体インピーダンス測定装置の検討"},"presenters":{"en":[{"name":"Nishiwaki Hiroki"},{"name":"Ishimoto Takuya"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Yasuno Emiko"},{"name":"Tangoku Akira"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"西脇 裕記"},{"name":"石本 卓也"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"安野 恵実子"},{"name":"丹黒 章"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report (MBE)","ja":"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)"},"publication_date":"2016-07-30","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Okayama","ja":"岡山"},"description":{"en":"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.","ja":"乳がん検診で乳がんの疑いありと診断され,その診断を確定するときに針生検で腫瘍の組織を直接採取する必要がある.腫瘍が小さい場合は,組織を採取できる大きさになるまで経過観察が余儀なくされる.そのような小さな腫瘍に対して,生検を行う前に生体インピーダンスを用いた非侵襲的な診断を行うことで,患者への精神的負担を軽減することが本研究の目標であり,診断する測定装置を独自で開発している.腫瘍の直上から健常な乳腺組織まで測定位置を変えながら測定していくことを乳腺腫瘍の判別方法として提案した.計算機シミュレーションの結果,有効である可能性が示唆された. 本研究では,測定位置の変更をリレーを用いた切り替え回路を測定装置に組み込むことにより実現した.作製した装置を用いてジャガイモファントムを測定し,機能評価をしたところ,提案した診断方法へ活用可能であることを確認した."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"http://ci.nii.ac.jp/naid/40020908012/","label":"url"},{"@id":"https://cir.nii.ac.jp/crid/1520009407989628672/","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=322861","label":"url"}],"presentation_title":{"en":"EEG source localization using eccentrically located electrodes and sLORETA","ja":"偏在配置電極を用いたsLORETAによる脳内信号源推定"},"presenters":{"en":[{"name":"Matsunaga Shimpachi"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Kaji Yoshio"},{"name":"Furukawa Kazuhiko"},{"name":"Konaka Shinsuke"},{"name":"Shichijo Fumio"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"松長 新八"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"加治 芳雄"},{"name":"古川 和彦"},{"name":"小中 信典"},{"name":"七條 文雄"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report (MBE)","ja":"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)"},"publication_date":"2016-07-30","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Okayama","ja":"岡山"},"description":{"en":"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","ja":"脳波を用いた信号源推定は非侵襲的かつ時間分解能が高いことから,脳の病気診断支援やBMI(Brain Machine Interface)への応用が期待されている.しかし,頭皮上で記録される電位は空間分解能が低いため,高精度な信号源推定を行うには,多大な電極数が必要とされている.そこで本研究では,発生領域がある程度既知である信号源に対して電極を偏在的に配置することで,少数電極による信号源推定精度の向上を検討した.コンピュータシミュレーションとして,電流ダイポールによる頭皮電位を算出し,sLORETA(standardized Low Resolution Electromagnetic Tomography)を用いて信号源推定を行い,推定誤差を調査した.シミュレーションの結果,偏在配置電極による信号源推定精度の向上を確認することができた."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"http://ci.nii.ac.jp/naid/40020907997/","label":"url"},{"@id":"https://cir.nii.ac.jp/crid/1520572359415637504/","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=322860","label":"url"}],"presentation_title":{"en":"Evaluation method of swallowing function using magnetic sensors","ja":"磁気センサを用いた嚥下機能評価法の検討"},"presenters":{"en":[{"name":"Asano Junya"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Kaji Yoshio"},{"name":"Furukawa Kazuhiko"},{"name":"Konaka Shinsuke"},{"name":"Ichikawa Tetsuo"},{"name":"Shichijo Fumio"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"浅野 純弥"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"加治 芳雄"},{"name":"古川 和彦"},{"name":"小中 信典"},{"name":"市川 哲雄"},{"name":"七條 文雄"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report (MBE)","ja":"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)"},"publication_date":"2016-07-30","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Okayama","ja":"岡山"},"description":{"en":"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.","ja":"リハビリテーションや在宅医療の領域において,摂食嚥下障害への関心が高まっている.本研究の目的は,嚥下障害スクリーニングテストを自動化し,嚥下の有無の評価基準を確立することである.そこで,本研究ではネオジウム磁石と3次元磁気センサを用いて嚥下に伴う喉頭運動を測定する装置の開発を行った.測定の方法は代表的なスクリーニングテストである反復唾液嚥下テスト(RSST),水飲みテスト,フードテストと同様に行った.磁気センサでの測定結果において1回目の嚥下をテンプレート波形として取り出し,測定結果全体と類似度の変化を求めたところ,嚥下を行った時刻に類似度が高くなり,嚥下を行った回数,時刻を自動計数することが可能となった.今回の結果から,スクリーニングテストを特別な施設なしで客観的に行うことが可能であると示唆された."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=312104","label":"url"}],"presentation_title":{"en":"Campylobacter jejuniに対するUVA-LEDの有効性","ja":"Campylobacter jejuniに対するUVA-LEDの有効性"},"presenters":{"en":[{"name":"Akari Tsunedomi"},{"name":"Shimohata Takaaki"},{"name":"Marin Gotoh"},{"name":"Sachie Amano"},{"name":"Nakahashi Mutsumi"},{"name":"Uebanso Takashi"},{"name":"Mawatari Kazuaki"},{"name":"Miyawaki Katsuyuki"},{"name":"Emoto Takahiro"},{"name":"Akutagawa Masatake"},{"name":"Kinouchi Yohsuke"},{"name":"Takahashi Akira"}],"ja":[{"name":"常冨 愛香里"},{"name":"下畑 隆明"},{"name":"後藤 茉凜"},{"name":"天野 幸恵"},{"name":"中橋 睦美"},{"name":"上番増 喬"},{"name":"馬渡 一諭"},{"name":"宮脇 克行"},{"name":"榎本 崇宏"},{"name":"芥川 正武"},{"name":"木内 陽介"},{"name":"髙橋 章"}]},"event":{"en":"第8回日本カンピロバクター研究会総会","ja":"第8回日本カンピロバクター研究会総会"},"publication_date":"2015-12-04","languages":["jpn"],"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"http://ci.nii.ac.jp/naid/40020557936/","label":"url"},{"@id":"https://cir.nii.ac.jp/crid/1520853833178490752/","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=310229","label":"url"}],"presentation_title":{"en":"Comparison of the arterial elasticity evaluation based on the carotid blood flow velocity and CAVI","ja":"頸動脈血流速度波形に基づく動脈弾性評価とCAVIとの比較 (MEとバイオサイバネティックス)"},"presenters":{"en":[{"name":"Tada, Arisa"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Obara Shigeru"},{"name":"Yoshizaki Kazuo"},{"name":"Kitaoka Kazuyoshi"},{"name":"Tanaka Hiroyuki"},{"name":"Kinouchi Yohsuke"},{"name":"Konaka Shinsuke"}],"ja":[{"name":"多田 亜梨沙"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"小原 繁"},{"name":"吉﨑 和男"},{"name":"北岡 和義"},{"name":"田中 弘之"},{"name":"木内 陽介"},{"name":"小中 信典"}]},"event":{"en":"IEICE Technical Report (MBE)","ja":"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)"},"publication_date":"2015-07-18","invited":true,"languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"description":{"en":"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.","ja":"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."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"http://ci.nii.ac.jp/naid/40020557960/","label":"url"},{"@id":"https://cir.nii.ac.jp/crid/1520572359156750592/","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=310228","label":"url"}],"presentation_title":{"en":"Analysis of a Chaotic Time Series Using Connection Weight Vectors of Neural Networks","ja":"ニューラルネットワークの結合荷重ベクトルを用いたカオス時系列の解析 (MEとバイオサイバネティックス)"},"presenters":{"en":[{"name":"Akutagawa Masatake"},{"name":"Kinouchi, Takahiro"},{"name":"Emoto Takahiro"},{"name":"Nagashino Hirofumi"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"芥川 正武"},{"name":"木内 敬浩"},{"name":"榎本 崇宏"},{"name":"長篠 博文"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report (MBE)","ja":"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)"},"publication_date":"2015-07-18","invited":true,"languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"description":{"en":"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.","ja":"生体のような非線形システムから得られる時系列信号からシステムの状態変化を指標化する手法として,多層ニューラルネットワークを用いた方法について検討した.本手法ではシステムの状態を多層ニューラルネットワークの結合荷重のとして埋め込み,その変化がシステムの状態変化を反映しているとして数値化する.結合荷重ベクトルは高次元となるため,測度の集中現象によりベクトル間の距離などの感度が低下する.そこで結合荷重ベクトルを主成分分析により次元圧縮した後に比較を行った.非線形システムの例としてカオス時系列を生成する池田写像を用いて,パラメータの変化を提案法で検出できるかについて検討した.その結果,パラメータの変化を検出することができることを確認した."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=313216","label":"url"}],"presentation_title":{"en":"絶対音感モデルによる音響解析の基礎的検討","ja":"絶対音感モデルによる音響解析の基礎的検討"},"presenters":{"en":[{"name":"庄野 剛史"},{"name":"Emoto Takahiro"},{"name":"Akutagawa Masatake"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"庄野 剛史"},{"name":"榎本 崇宏"},{"name":"芥川 正武"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"The Papers of Technical Meeting, IEE JAPAN","ja":"電気学会研究会資料"},"publication_date":"2015-06-25","languages":["jpn"],"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260462","label":"url"}],"presentation_title":{"en":"Investigation of electrode arrangement for the bioimpedance measurement of tumor tissue","ja":"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"},"presenters":{"en":[{"name":"Iwami Seiji"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"},{"name":"Morimoto Tadaoki"},{"name":"Tangoku Akira"},{"name":"Okazaki Kenji"},{"name":"Yasuno Emiko"},{"name":"Inoko Takuto"},{"name":"Takahashi Tomoya"}],"ja":[{"name":"岩見 誠治"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"小中 信典"},{"name":"木内 陽介"},{"name":"森本 忠興"},{"name":"丹黒 章"},{"name":"岡﨑 憲二"},{"name":"安野 恵実子"},{"name":"猪子 拓人"},{"name":"高橋 知也"}]},"event":{"en":"IEICE Technical Report","ja":"電子情報通信学会技術研究報告"},"publication_date":"2012-07-13","invited":true,"languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Okayama","ja":"岡山"},"description":{"en":"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.","ja":"過去の研究によって,生体組織の電気抵抗が正常組織と悪性腫瘍とで違いがあることがわかっている.これまで開発してきた装置は測定電極を固定しているものだった.本研究では生体等価回路モデルを利用しシミュレーションを行い電極配置の違いによっての測定への影響について調ベることである.生体等価回路を用いてシミュレーションを行った結果,浅部腫瘍生体組織インピーダンス測定において有効と思われる電極配置を提示した."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260461","label":"url"}],"presentation_title":{"en":"The study on the auditory recalling as types of auditory stimuli","ja":"聴覚刺激の種類による聴覚想起に関する研究"},"presenters":{"en":[{"name":"Kim Kyung-Hwa"},{"name":"Shigeta Makoto"},{"name":"Emoto Takahiro"},{"name":"Akutagawa Masatake"},{"name":"Nagashino Hirofumi"},{"name":"Kinouchi Yohsuke"},{"name":"Kaji Yoshio"},{"name":"Furukawa Kazuhiko"},{"name":"Shichijo Fumio"}],"ja":[{"name":"金 景華"},{"name":"重田 誠"},{"name":"榎本 崇宏"},{"name":"芥川 正武"},{"name":"長篠 博文"},{"name":"木内 陽介"},{"name":"加治 芳雄"},{"name":"古川 和彦"},{"name":"七條 文雄"}]},"event":{"en":"IEICE Technical Report","ja":"電子情報通信学会技術研究報告"},"publication_date":"2012-07-13","invited":true,"languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Okayama","ja":"岡山"},"description":{"en":"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","ja":"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."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=255046","label":"url"}],"presentation_title":{"en":"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","ja":"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"},"presenters":{"en":[{"name":"Huangfu Minghu"},{"name":"Konaka Shinsuke"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"}],"ja":[{"name":"皇甫 明慧"},{"name":"小中 信典"},{"name":"芥川 正武"},{"name":"榎本 崇宏"}]},"event":{"en":"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","ja":"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"},"publication_date":"2012-07-13","invited":true,"languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Okayama","ja":"岡山"},"description":{"en":"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.","ja":"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.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.そして,細胞抽出結果の検証するために,目視で,細胞サンプル画像が作った.本研究はサンプル画像の精度が向上するため,サンプル画像と楕円テンプレートの最大一致率とその連続回数を求めた.その結果,目視番号に対して見直した目視点との相関係数0.0126が得られた."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260500","label":"url"}],"presentation_title":{"en":"UV-A(近紫外線)照射の殺菌効果に関するモデル化","ja":"UV-A(近紫外線)照射の殺菌効果に関するモデル化"},"presenters":{"en":[{"name":"Ishizaki Masachika"},{"name":"Manabe Yusuke"},{"name":"Akutagawa Masatake"},{"name":"Kinouchi Yohsuke"},{"name":"Ikehara Toshitaka"},{"name":"Konaka Shinsuke"},{"name":"Takahashi Akira"},{"name":"Emoto Takahiro"}],"ja":[{"name":"石崎 仁愛"},{"name":"真鍋 佑輔"},{"name":"芥川 正武"},{"name":"木内 陽介"},{"name":"池原 敏孝"},{"name":"小中 信典"},{"name":"髙橋 章"},{"name":"榎本 崇宏"}]},"event":{"en":"LED総合フォーラム2012in徳島論文集","ja":"LED総合フォーラム2012in徳島論文集"},"publication_date":"2012-04-20","languages":["jpn"],"location":{"en":"Tokushima","ja":"徳島"},"description":{"en":"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.","ja":"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."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=260499","label":"url"}],"presentation_title":{"en":"近紫外線が細菌に与える影響に関する研究","ja":"近紫外線が細菌に与える影響に関する研究"},"presenters":{"en":[{"name":"Manabe Yusuke"},{"name":"Akutagawa Masatake"},{"name":"Kinouchi Yohsuke"},{"name":"Ikehara Toshitaka"},{"name":"Takahashi Akira"},{"name":"Konaka Shinsuke"},{"name":"Emoto Takahiro"},{"name":"石崎 仁愛"}],"ja":[{"name":"真鍋 佑輔"},{"name":"芥川 正武"},{"name":"木内 陽介"},{"name":"池原 敏孝"},{"name":"髙橋 章"},{"name":"小中 信典"},{"name":"榎本 崇宏"},{"name":"石崎 仁愛"}]},"event":{"en":"LED総合フォーラム2012in徳島論文集","ja":"LED総合フォーラム2012in徳島論文集"},"publication_date":"2012-04-20","languages":["jpn"],"location":{"en":"Tokushima","ja":"徳島"},"description":{"en":"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.","ja":"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."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=254126","label":"url"}],"presentation_title":{"en":"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","ja":"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"},"presenters":{"en":[{"name":"Emoto 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Kazuhiko"},{"name":"Nagashino Hirofumi"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"中平 雄哉"},{"name":"榎本 崇宏"},{"name":"芥川 正武"},{"name":"加治 芳雄"},{"name":"七條 文雄"},{"name":"古川 和彦"},{"name":"長篠 博文"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"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","ja":"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"},"publication_date":"2011-07-08","invited":true,"languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Tokushima","ja":"徳島"},"description":{"en":"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.","ja":"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."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://cir.nii.ac.jp/crid/1520853832837782656/","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=256113","label":"url"}],"presentation_title":{"en":"Evaluation of atherosclerosis using carotid blood flow velocity waveforms --- Feature extraction of systolic","ja":"頸動脈血流速度波形を用いた動脈硬化の評価 --- 収縮期の特徴の抽出について"},"presenters":{"en":[{"name":"Aoyama Kouki"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Obara Shigeru"},{"name":"Yoshizaki Kazuo"},{"name":"Kitaoka Kazuyoshi"},{"name":"Tanaka Hiroyuki"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"青山 弘毅"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"小原 繁"},{"name":"吉﨑 和男"},{"name":"北岡 和義"},{"name":"田中 弘之"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"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","ja":"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"},"publication_date":"2011-07-08","invited":true,"languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Tokushima","ja":"徳島"},"description":{"en":"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AHR, ASII (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AHR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.","ja":"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AHR, ASII (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AHR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."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://cir.nii.ac.jp/crid/1520572357308622720/","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=256111","label":"url"}],"presentation_title":{"en":"Vealuating bowel activity before-after administration of a drug via bowel sound analysis","ja":"腸蠕動音解析による薬剤投与前後の腸活動評価"},"presenters":{"en":[{"name":"Kusumoto Satoshi"},{"name":"Emoto Takahiro"},{"name":"Okahisa Toshiya"},{"name":"Shono 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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."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://cir.nii.ac.jp/crid/1520572358328117504/","label":"url"},{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=256107","label":"url"}],"presentation_title":{"en":"Source localization of alpha activity using neural networks","ja":"ニューラルネットワークを用いたα波発生源の検討"},"presenters":{"en":[{"name":"Kono Koichiro"},{"name":"Akutagawa Masatake"},{"name":"Emoto Takahiro"},{"name":"Nagashino Hirofumi"},{"name":"Konaka Shinsuke"},{"name":"Kaji Yoshio"},{"name":"Shichijo Fumio"},{"name":"Furukawa Kazuhiko"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"鴻野 浩一郎"},{"name":"芥川 正武"},{"name":"榎本 崇宏"},{"name":"長篠 博文"},{"name":"小中 信典"},{"name":"加治 芳雄"},{"name":"七條 文雄"},{"name":"古川 和彦"},{"name":"木内 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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).","ja":"現在,睡眠時無呼吸症候群(OSA)は,睡眠ポリグラフ(PSG)検査によって診断されているが,患者にとって不便である.OSA患者の大きな特徴にいびきがあり,いびき音は容易に得ることができるので,いびきからOSAの診断が期待される.一般にいびきは,閉塞性いびきと良性いびきに分類され,それらのいびきは特徴的ないくつかのパターンによって構成されていると考えられる.そこで本研究では,SOMを用いて,いびきをいくつかのパターンに分類できるかを検討する."},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=179983","label":"url"}],"presentation_title":{"en":"Inspecting OSA patients for signs of Apnea using the snore sound analysis","ja":"いびき音解析による無呼吸の兆候抽出に関する基礎的検討"},"presenters":{"en":[{"name":"Emoto Takahiro"},{"name":"Abeyratne Udantha"},{"name":"Kusumoto Tetsuya"},{"name":"Suzuki Yusuke"},{"name":"Hagiwara Daisuke"},{"name":"Akutagawa Masatake"},{"name":"Konaka Shinsuke"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"榎本 崇宏"},{"name":"Abeyratne Udantha"},{"name":"楠本 哲也"},{"name":"鈴木 優介"},{"name":"萩原 大輔"},{"name":"芥川 正武"},{"name":"小中 信典"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report","ja":"電子情報通信学会技術研究報告"},"publication_date":"2008-07-04","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Tokyo","ja":"東京"},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=145125","label":"url"}],"presentation_title":{"en":"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","ja":"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"},"presenters":{"en":[{"name":"Emoto Takahiro"},{"name":"Abeyratne Udantha"},{"name":"Akutagawa Masatake"},{"name":"Nagashino Hirofumi"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"榎本 崇宏"},{"name":"Abeyratne Udantha"},{"name":"芥川 正武"},{"name":"長篠 博文"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report","ja":"電子情報通信学会技術研究報告"},"publication_date":"2006-07-14","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Tokushima","ja":"徳島"},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=124742","label":"url"}],"presentation_title":{"en":"Estimating the state of the snoring sound using neual networks","ja":"ニューラルネットワークを用いた鼾音の状態推定"},"presenters":{"en":[{"name":"Emoto Takahiro"},{"name":"Akutagawa Masatake"},{"name":"Abeyratne Udantha"},{"name":"Nagashino Hirofumi"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"榎本 崇宏"},{"name":"芥川 正武"},{"name":"Abeyratne Udantha"},{"name":"長篠 博文"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report","ja":"電子情報通信学会技術研究報告"},"publication_date":"2005-07-30","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"location":{"en":"Tokushima","ja":"徳島"},"is_international_presentation":false}} {"insert":{"user_id":"B000330943","type":"presentations"},"force":{"see_also":[{"@id":"https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=91628","label":"url"}],"presentation_title":{"en":"Evaluation of transition of biological system using BP neural network","ja":"BPNNを用いた生体システムの状態変化の評価について"},"presenters":{"en":[{"name":"Emoto Takahiro"},{"name":"Akutagawa Masatake"},{"name":"Nagashino Hirofumi"},{"name":"Kinouchi Yohsuke"}],"ja":[{"name":"榎本 崇宏"},{"name":"芥川 正武"},{"name":"長篠 博文"},{"name":"木内 陽介"}]},"event":{"en":"IEICE Technical Report","ja":"電子情報通信学会技術研究報告"},"publication_date":"2004-05-19","languages":["jpn"],"promoter":{"en":"Institute of Electronics, Information and Communication Engineers","ja":"電子情報通信学会"},"is_international_presentation":false}}