Researchers

YAMAWAKI Nobuyuki

YAMAWAKI Nobuyuki
Associate Professor
Faculty Department of Biomedical Engineering
Researchmap https://researchmap.jp/read0185812

Education and Career

Education

  • - 1995 , Osaka University, Graduate School, Division of Engineering Science,
  • - 1995 , Osaka University, 基礎工学研究科,

Academic & Professional Experience

  • 1995 - 2000 , Research Associate, Faculty of Biology-Oriented Science and Technology

Research Activities

Research Areas

  • Life sciences, Rehabilitation science
  • Life sciences, Medical systems
  • Life sciences, Biomaterials
  • Life sciences, Biomedical engineering

Research Interests

リハビリテーション科学・福祉工学, 医用システム, 医用生体工学・生体材料学, Neural Modeling, Medical Organism Engineering and Material Science of Organism

Published Papers

  1. An EEG-based communication support system using changes in brain activity with closed eyes
    Nobuyuki Yamawaki
    Proceedings of 2019 IEEE 1st Global Conference on Life Sciences and Technologies (LifeTech)  , 216-218, Mar. 2019  , Refereed
  2. Comparison of thin agar layer method and flow cytometry methods for enumeration of chlorine-injured Listeria innocua
    Ayano Inoue; Takashi Ano; Nobuyuki Yamawaki; Takuma Shiraki; Hidemi Izumi
    Memoirs of The Faculty of Biology-Oriented Science and Technology of Kindai University  41  (41)  , 13-24, Feb. 2018  , Refereed
  3. An objective assessment of stimulus-independent thoughts by analyzing near-infrared spectroscopy (NIRS) signals of lateral prefrontal cotex activity
    小濱 剛; 吉田 久; 山脇 伸行; 濱野友紀; 清水達央
    Memoirs of the Faculty of Biology-Oriented Science and Technology of Kinki University  32  (32)  , 7-16, Sep. 2013 

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Books etc

  1. 持ちつ持たれつ生き物とコンピュータ 第1章 目はみるもの見られるもの , 小濱 剛; 吉川 昭; 中迫 昇; 山脇 伸行; 吉田 久; 長江 貞彦; 奥井 順; 辻合 秀一 , 電気書院 , Aug. 2006
  2. 例をとおして学ぶ システム，信号処理そしてプログラミング , 吉川昭; 吉田久; 山脇伸行; 佐藤俊輔 , コロナ社 , Apr. 2003

Conference Activities & Talks

  1. A prototype of monitoring support system for elderly people using an infrared sensor , 佐藤 柚茄; 山脇 伸行 , Multi-symposium on Control Systems , 3, Mar. 2020
  2. Effects of smartphone use before going to bed on sleep , 椎崎 千尋; 山脇 伸行 , Multi-symposium on Control Systems , 3, Mar. 2020
  3. Improving the accuracy of communication support system by machine learning , 堀江勇人; 山脇伸行 , Multi-symposium on Control Systems , 3, Mar. 2020

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MISC

  1. 〈Original Paper〉 Development of predictive model for bacterial growth in fresh-cut cabbage , 佐藤 聖; 山脇 伸行; 阿野 貴司; 泉 秀実 , 近畿大学生物理工学部紀要 = Memoirs of the Faculty of Biology-Oriented Science and Technology of Kindai University , 49 , 1 , 10 , 31, Oct. 2022
    Summary:[要旨] カットキャベツにおいて初発菌数からの微生物増加に影響を与える主要因は、貯蔵温度である。そこで我々は、初発細菌数と貯蔵温度を基にカットキャベツの細菌増殖の予測モデルを開発した。本予測プログラムは、増殖モデルのフィッティング用プログラムと、細菌の予測曲線描画プログラムで構成されている。細菌増殖データは、1°Cで15日間、5°Cで8日間、10°Cで4日間貯蔵したカットキャベツの一般生菌数から求め、フィッティング用プログラムで分析することで、増殖モデルとともに必要なパラメータの数値を得た。これにより、すべての温度区で細菌の典型的なシグモイド型の増殖曲線が得られた。カット野菜工場で製造されたカット野菜製品の初発菌数とフィッティング用プログラムから得られたパラメータの値を予測曲線描画プログラムに入力し、各貯蔵温度でのカット野菜製品の予測曲線を作成した。本プログラムは、カットキャベツ製品の細菌増殖を正確に予測できたが、カットキャベツミックス製品では精度の高い予測が得られなかった（Pr > 0.68）。このことから、今回作製した微生物予測プログラムは、1°C、5°Cおよび10°Cで貯蔵されたカットキャベツ製品の細菌増殖を予測するための有効なツールとなる。 [英文抄録] We developed a predictive model for bacterial growth in fresh-cut cabbage at a given initial bacterial count and storage temperature, since storage temperature could be a major factor that affects the microbial growth from the initial level. The predictive program consists of a fitting program for the growth model and a simulation program to describe the bacterial growth curve. Raw bacterial growth data were obtained from counts of mesophilic aerobic bacteria of fresh-cut cabbage stored at 1ºC for 15 days, 5ºC for 8 days, and 10ºC for 4 days, and then analyzed with a fitting program that gives the growth model with estimated values of parameters. This resulted in typical sigmoid growth curves of bacteria at all temperatures. When we input the initial bacterial counts of fresh-cut products processed in a commercial produce plant and the estimated values of parameters resulting from the fitting program into the simulation program, it gave the predicted bacterial growth curves of fresh-cut products at each storage temperature. The program precisely predicted the growth of bacteria in fresh-cut cabbage product, but not in fresh-cut mixed salad product including cabbage (Pr > 0.68). Therefore, our program would be a useful tool to estimate the bacterial growth of fresh-cut cabbage product held at 1ºC, 5ºC, and 10ºC. Departmental Bulletin Paper application/pdf
  2. The Fundamental Study on An Objective Estimation of Hiragana , TOKUDA Takumi; YANAGI Hidekazu; SATOMURA Hitoshi; KOSAKO Hideo; YAMAWAKI Nobuyuki , Proceedings of the IEICE General Conference , 2001 , 326 , 326 , 7, Mar. 2001
  3. 9-5 Classification of Face Images by using V-SG Theory , IMANISHI Toshio; YAMAWAKI Nobuyuki; KOSAKO Hideo , ITE Winter Annual Convention , 2000 , 119 , 119 , 6, Dec. 2000

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Patents

  1. 意思伝達支援方法及び意思伝達支援システム , 山脇 伸行 , 特許6359926

Research Grants & Projects

  1. Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, A communication device using EEG during motor imagery and auditory P300. , Kindai University
  2. The Other Research Programs, Brain-Computer Interface
  3. ブレイン・コンピュータ・インタフェース

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