Updated on 2024/01/31

写真a

 
IRIE Takashi
 
Organization
Faculty of Education Professor
Position
Professor
Homepage
https://edu.okayama-u.ac.jp/~gijutu/irie/IRIE_Lab_HP_JP.htm
External link

Degree

  • Doctor (Engineering) ( Okayama University )

Research Interests

  • Measurement Engineering

  • 計測工学

Research Areas

  • Humanities & Social Sciences / Science education

Research History

  • Okayama University   学術研究院教育学域   Professor

    2021.4

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  • 岡山大学教育学研究科 教授

    2013.4 - 2021.3

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  • 岡山大学教育学研究科   准教授

    2008 - 2012

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  • Okayama University   Faculty of Education   Associate Professor

    2007 - 2008

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  • Okayama University   Faculty of Education   Associate Professor (as old post name)

    2006 - 2007

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  • スウェーデン王国リンシェピン大学 研究員

    2001 - 2002

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  • Researcher

    2001 - 2002

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  • Associate Professor

    1997 - 2006

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  • Kochi University

    1997 - 2006

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  • Senior Assistant Professor

    1994 - 1997

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  • Kochi University

    1994 - 1997

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  • Kochi University

    1993 - 1994

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  • Research Associate

    1993 - 1994

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Papers

  • ICT を活用した中学校技術科における授業実践―サーモグラフィとスプレッドシートの活用について― Reviewed

    西崎康晴, 日向洋平, 木挽屋菜摘, 入江隆

    テクノロジー教育   12   13 - 20   2022.9

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    Authorship：Last author,　Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)  

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  • 水産生物栽培キットの設計・製作とSTEAM教育への展開

    野毛宏文, 梶元達也, 入江隆, 笠井俊信, 内藤憲二, 平田晴路

    岡山大学大学院教育学研究科研究集録   ( 179 )   121 - 127   2022.2

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  • 成長的思考態度の育成を伴う技術科教育課程編成における内容論的研究

    大谷忠, 入江隆, 中西康雅, 荒木祐二, 安藤明伸, 谷田親彦, 磯部尊征, 木下龍, 森山潤, 上野耕史

    日本産業技術教育学会学会誌   62 ( 2 )   181 - 186   2020.6

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    Language：Japanese   Publishing type：Research paper (scientific journal)  

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  • 中学校技術科におけるVR構造力学教材を用いた授業実践 Reviewed

    入江 隆, 難波育久, 日吉康幸

    テクノロジー教育   10   1 - 7   2020.4

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  • 学習段階における立体の大きさ認識の変化

    入江隆, 飯石佳名子

    岡山大学大学院教育学研究科研究集録   ( 173 )   23 - 29   2020.2

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  • 「はりの曲げ」における内部応力をインタラクティブに学習する教材の開発

    入江隆, 内藤憲二

    岡山大学大学院教育学研究科研究集録   ( 169 )   39 - 45   2018.11

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  • 教科内容構成による中学校の授業づくりと教員養成プログラムの改善(2)―音楽科、保健体育科、美術科、技術・家庭科（技術分野）を事例として―

    小川容子,原祐一,高岡敦史,酒向治子,山本和史,入江隆,桑原敏典

    岡山大学大学院教育学研究科研究集録   167   121 - 129   2018

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  • Analyzing the Subject Content of Crop Production for Nurturing Living Things in Technology Education

    21   1 - 9   2016

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    Language：Japanese  

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  • 技術科教育課程編成における最新の教科専門分野の動向を取り入れた内容論的研究

    大谷 忠, 入江 隆, 中西 康雅, 荒木 祐二, 安藤 明伸, 谷田 親彦, 上野 耕史

    日本産業技術教育学会誌 = Journal of the Japan Society of Technology Education   58 ( 2 )   131 - 136   2016

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  • Development of a Multimedia Teaching Material which Offers a Physical Experience to the "Bending of Beams"

    56 ( 3 )   215 - 223   2014

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  • Development of a Multimedia Teaching Material for Visco-elastic Mechanical Models by

    Hiroki Nanba, Takashi Irie

    International Conference on Technology Education in the Pacific-Rim Countries Research Papers   70 - 77   2012

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  • 押し込むときと返るときの力学特性が異なる軟物体の硬さ知覚

    入江隆, 中西秀男, 裏垣博, 藤田尚文

    電子情報通信学会論文誌A   J94-A ( 3 )   206 - 213   2011

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  • パッシブタッチ条件におけるやわらかさ知覚のメカニズム

    藤田尚文, 入江 隆, 中西秀男, 太田 学

    電子情報通信学会論文誌A   J94-A ( 8 )   657 - 665   2011

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  • Effect of Small Fluctuation on Perceived Length by Static Holding

    IRIE Takashi, NAKANISHI Hideo, URAGAKI Hiroshi, FUJITA Naofumi

    TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A   77 ( 775 )   903 - 912   2011

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    Publisher：The Japan Society of Mechanical Engineers  

    The perception models which explain perceived lengths of objects by static holding have two assumptions. One is strict rest of objects and the other is small fluctuation of them. In this paper, we measured the fluctuation of objects by using a 6 DOF (degrees of freedom) tracking system. It made clear firstly that the objects were certainly fluctuating. Secondly, the fluctuation was divided into the initial part just after the start of holding and the steady part after that. Thirdly, the fluctuation of the initial part was bigger than that of the steady part, but much smaller than that of wielded objects. We considered a muscle torque model, MTM, which consisted of a static moment and an inertia moment. The relation between angular acceleration and the coefficients of the MTM showed that subjects perceived lengths depending on dynamic characteristics of objects so much as angular acceleration increased.

    DOI： 10.1299/kikaic.77.903

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  • Sensory perception of virtual soft media which change their spring rates according to displacement

    Takashi Irie, Hideo Nakanishi, Hiroshi Uragaki, Naofumi Fujita

    Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   77 ( 784 )   4663 - 4671   2011

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    Language：Japanese   Publishing type：Research paper (scientific journal)  

    We created virtual soft media by using a haptic device and performed a sensory test focusing on proprioceptive sensation in muscles and tendons. The depths of the virtual media were 30 mm and their spring rates changed according to the displacement. Subjects handled the end-effecter of the haptic device and pushed a pointer into virtual media in a display monitor to sense feedback force calculated by a personal computer. Two experiments were performed to elucidate a part of the sensory perception mechanism. In the experiment 1, subjects evaluated the hardness of the virtual media sensing the whole mechanical characteristics from the surface to the bottom. In the experiment 2, they evaluated the hardness in the range from the surface to the depth of just over 25 mm. The hardness evaluation scores in the exp. 2 were significantly higher than those in the exp. 1 on ANOVA. The changes of spring rates also affected the hardness evaluation scores significantly. We examined the optimal model, which explained the sensory perception mechanism, with covariance structure analysis. As a result, the optimal models of the exp. 1 and the exp. 2 were unified, and the hardness evaluation scores were explained with the mean values and the slopes of logarithmic spring rates. This optical model suggested that subjects could correctly acquire the hardness information of soft media by using the mean values and the slopes, even though they did not have the whole mechanical characteristics. © 2011 The Japan Society of Mechanical Engineers.

    DOI： 10.1299/kikaic.77.4663

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  • マルチメディア教材における力覚呈示の学習効果－英語学習教材の場合－

    入江隆, 岡崎雄介

    日本産業技術教育学会学会誌   52 ( 4 )   303 - 310   2010

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  • Learning Effect of Haptic Display on Multimedia Teaching Material:In the Case of English Teaching Material

    Takashi IRIE, Yusuke OKAZAKI

    52 ( 4 )   303 - 310   2010

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  • PICマイコンを用いた２進数－10・16進数変換教具の開発

    工藤雄司, 平田晴路, 入江 隆

    日本産業技術教育学会学会誌   51 ( 3 )   187 - 194   2009

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  • Sensory Perception Mechanism on Softness

    IRIE Takashi, FUJITA Naofumi, NAKANISHI Hideo, OHTA Manabu

    The IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences (Japanese edition) A   J91-A ( 1 )   162 - 171   2008

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    Language：Japanese   Publisher：The Institute of Electronics, Information and Communication Engineers  

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  • ３軸力覚プローブを用いた応力測定システム

    入江 隆, 中西秀男, 藤田尚文

    高知大学教育学部研究報告   ( 65 )   55 - 60   2005

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  • Effect of Rest Time on Isometric Muscle Fatigue Measured by Biomechanical Impedance

    IRIE Takashi, OKA Hisao

    Transactions of the Japan Society of Mechanical Engineers Series B   71 ( 703 )   507 - 512   2005

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    Muscle fatigue has been studied in various fields. As it accompanied the change of its mechanical characteristics, we had studied the relation between muscle fatigue and its biomechanical characteristics (visco-elasticities) by using biomechanical impedances in case of the isometric contraction with continuous load. It was confirmed, as a result, that the condition of muscle fatigue was estimated from its visco-elasticities. In this study, we adopted the isometric contraction with intermittent load to examine how the rest time affected muscle fatigue. Three sets of 5 minutes 15% MVC (Maximum Voluntary Contraction) load were applied with 1 or 4 minutes interval on an antebrachial flexor muscle. The advancement and the recovery of muscle fatigue were observed in both loaded and unloaded situation. Longer rest decreased the fatiguing speed and caused an obvious recovery. Visco-elasticities were less sensitive to muscle fatigue at its early stage than MFs, which were calculated from surface EMGs.

    DOI： 10.1299/kikaia.71.507

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    Other Link： https://jlc.jst.go.jp/DN/JALC/00249441565?from=CiNii

  • 軟物体の粘弾性特性と手指による硬さ評価との関係

    入江 隆, 中西秀男, 藤田尚文

    電子情報通信学会論文誌A   87 ( 10 )   1329 - 1338   2004

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  • Hardness Evaluation of Soft Objects with Different Thicknesses

    Irie Takashi, Nakanishi Hideo, Fujita Naofumi

    Transactions of the Virtual Reality Society of Japan   9 ( 1 )   27 - 34   2004

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    Language：Japanese   Publisher：THE VIRTUAL REALITY SOCIETY OF JAPAN  

    A man applies load on a soft object with his fingers to evaluate its hardness and detects a force, deformation and touch sensation. As soft objects in our environment are finite, the boundary conditions have a significant effect on our evaluation. In this paper, hardness evaluation of soft objects with different kinds of thicknesses was examined and its accuracy was confirmed. In the experiment isolating the thickness information from subjects, the accuracy of evaluation decreased. This result suggests that the accuracy of the thickness and the size of the object severely affect the hardness evaluation in a virtual environment. In a further experiment restricting touch sensation, subjects evaluated the hardness inaccurately according to the force and deformation which was affected by the boundary conditions.

    DOI： 10.18974/tvrsj.9.1_27

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  • Measurement of muscle fatigue by using biomechanical impedance

    IRIE Takashi, Oka Hisao

    The proceedings of the JSME annual meeting   2002   137 - 138   2002

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    This paper examines the relationship between muscle fatigue and its biomechanical characteristics by using biomechanical impedance. Visco-elasticity was calculated from biomechanical impedance. In our experiment, isometric contraction was applied to a subject's forearm with 10 and 15% of maximum voluntary contraction (MVC) for a certain constant period until one got fatigued. The change of visco-elasticity in unloaded and under contraction was observed, and the change under contraction was not mo notonous at most of the subjects. The magnitude of load affected advancing speed of fatigue but did not the tendency of visco-elasticity.

    DOI： 10.1299/jsmemecjo.2002.1.0_137

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  • Measurement of biomechanical properties by impact response (II) : Analysis of impact forces and application for evaluation of muscle contraction

    Irie Takashi, Oka Hisao

    Journal of the Society of Biomechanisms   24 ( 3 )   168 - 173   2000

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    Language：Japanese   Publisher：Society of Biomechanisms  

    The authors have developed a handy-typed impact hammer for biometric use and constructed an impact response measurement system. In this study, the loading period of an impact force is defined and examined the relation with the wave-height, which is the maximum value of an impact force. The relation between the contraction of muscle and the biomechanical properties measured from skin surface is also examined by using wave-heights, Ioading periods, and IEMGS. As a result, the sufficient correlation between these two is con-firmed.

    DOI： 10.3951/sobim.24.168

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    Other Link： http://search.jamas.or.jp/link/ui/2003052835

  • 衝撃応答法による皮膚表面から見た筋力学特性の計測

    入江 隆, 岡 久雄

    バイオメカニズム１5−形と動きの探求− ，東京大学出版会   31 - 40   2000

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  • 衝撃応答法による生体力学特性の計測(I) : 計測システムの開発(<特集>マイクロマシン)

    入江 隆, 岡 久雄

    バイオメカニズム学会誌   22 ( 4 )   163 - 168   1998

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    Language：Japanese   Publisher：バイオメカニズム学会  

    The authors have measured human tissues from skin surface by using an impact response measurement system, which includes an impact hammer for industrial use. In this measurement system, the force values were not able to be used for analysis and the objectivity of measurement was not ensured completely because the impact forces depended on the way of hammer handling by each experimentalist. Then we developed a biometric impact hammer, which did not depend on an experimentalist, and constructed a measurement system. The proper measurement conditions were examined and the measurement errors of maximum force values were under 5%. Accordingly, this measurement system was practical enough in somatometry.

    DOI： 10.3951/sobim.22.163

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  • MEASUREMENT OF STIFFNESS ON THE BODY SURFACE BY USING BIOMECHANICAL IMPEDANCE

    OKA Hisao, IRIE Takashi

    Biomechanisms   12   15 - 25   1994

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    Language：Japanese   Publisher：Society of Biomechanisms  

    The measurement of stiffness on the body surface is of great importance for palpation, percussion and pressation such is used in a detection of an edema in clinics. From the other standpoint of an industrial measurement, it is also significant for getting hold of a soft object such as the hardness sensor of a manipulator. In order to estimate biomechanical properties of the body surface by means of biomechanical impedance, we have developed a measurement system for biomechanical impedance. The system consists of a measuring device, a measuring probe and a personal computer. A vibrator, an impedance head and a load-cell are included in the measuring probe. A random vibration is applied to the body surface through the probe, and force and acceleration at the driving point are detected by the impedance head. The measuring probe is of useful size, and almost all parts of the body surface are measured by the probe. The random vibration method makes a short measurement time possible. The preload (contact force) of probe to the body surface during a measurement is kept constant by means of computer programming. This allowed satisfactory accuracy and measurement repeatability. The mechanical impedance of the body surface is significantly influenced by the measuring conditions (diameter of the vibrating tip of the probe and the preload). It also depends on stratified body structures, such as a bone under the skin surface. The applied vibration is reflected at the layer according to its form and thickness. Consequently there are three typical patterns (soft, intermediate and hard) in the biomechanical impedance spectra. We have proposed a new index SI (Stiffness Index), which is obtained from the mechanical impedance spectrum. The SI has [N/m] dimensionally and indicates a kind of extended spring constant into a visco-elastic medium. The stiffness distribution on the back of the hand is illustrated as a SI mapping. From the mechanical impedance spectrum with a soft pattern, we are able to obtain a visco-elastic constant of the body surface. When the obtained visco-elasticity includes the influences of the stratified structure of the body, it should be termed 'apparent' visco-elasticity. In order to obtain the visco-elasticity of the skin and subcutaneous tissue independent of body structure, we have proposed a correction method for the measured results. This method was applied to the measured result for the chest and the corrected visco-elasticity of the tissue in situ was obtained.

    DOI： 10.3951/biomechanisms.12.15

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  • Meaning of Measured Results of Biomechanical Impedance and the Stiffness Index

    IRIE Takashi, OKA Hisao, YAMAMOTO Tatsuma

    The Transactions of the Institute of Electronics,Information and Communication Engineers.   75 ( 5 )   947 - 955   1992.5

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  • Measurement of Biomechanical Properties on Skin by Impact Response

    IRIE Takashi, OKA Hisao, YAMAMOTO Tatsuma

    The Transactions of the Institute of Electronics,Information and Communication Engineers.   75 ( 4 )   799 - 807   1992.4

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  • Movable System for Measuring Biomechanical Impedance

    IRIE Takashi, OKA Hisao, YAMAMOTO Tatuma

    The Transactions of the Institute of Electronics,Information and Communication Engineers.   75 ( 2 )   432 - 434   1992.2

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  • Portable system for measuring biomechanical properties

    Oka Hisao, Irie Takashi, Hao Sun Yong, Yamamoto Tatsuma

    Instrumentation and Measurement Technology Conference   556 - 561   1991.5

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Books

  • 人間計測ハンドブック

    産業技術総合研究所人間福祉医工学研究部門（ Role： Joint author）

    朝倉書店  2003.9  （ ISBN:4254201079 ）

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    Total pages：901   Language：Japanese

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MISC

  • Measurement of Muscle Fatigue by using Biomechanical Impedance : in case of Isometric contraction with Intermittent Load

    IRIE Takashi, OKA Hisao

    IEICE technical report. ME and bio cybernetics   103 ( 184 )   39 - 42   2003.7

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    Language：Japanese   Publisher：The Institute of Electronics, Information and Communication Engineers  

    The study of muscle fatigue has been proceeded in various fields. Physiological technique is, to date, a major approach. However, muscle fatigue accompanies its own mechanical change, and people evaluate it by palpation on their daily life. We have studied the relation between muscle fatigue and its biomechanical properties by using biomechanical impedance. It is confirmed that the condition of muscle fatigue is estimated from its biomechanical properties in case of isometric contraction with continuous load. In this study, we adopted the case of isometric contraction with intermittent load. It was observed, as a result, that the advancement of muscle fatigue depended on the length of rest periods.

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    Other Link： http://search.jamas.or.jp/link/ui/2004268507

  • Biomechanical Characteristics during Isometric Muscle Fatigue

    IRIE Takashi, OKA Hisao

    Transactions of the Japan Society of Mechanical Engineers Series B   69 ( 677 )   70 - 76   2003

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    A concern about fatigue has been toning up these days. Although the evaluation of muscle fatigue has been developing based on physiology lately, these are invasive ones. Muscle fatigue accompanies the change of its biomechanical characteristics in general. The authors examined the relation between muscle fatigue and biomechanical characteristics (visco-elasticity) with a biomechanical impedance measurement system non-invasively. First, it was confirmed that our system could detect the visco-elasticity of muscle with experimental models. Next, isometric contraction was applied to a subject's forearm with 10 and 15% of maximum voluntary contraction (MVC) for a certain constant period until one got fatigued. As a result, the elasticity decreased and the viscosity increased under contraction. The tendency was the opposite with no load. The amount of load did not affect the tendency but the fatiguing speed.

    DOI： 10.1299/kikaia.69.70

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    Other Link： https://jlc.jst.go.jp/DN/JALC/00162901238?from=CiNii

  • Measurement of muscle fatigue by using biomechanical impedance : Examination of measurement conditions

    IRIE Takashi, IKEGAMI Koichi, OKA Hisao

    IEICE technical report. ME and bio cybernetics   99 ( 178 )   19 - 24   1999.7

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    Language：Japanese   Publisher：The Institute of Electronics, Information and Communication Engineers  

    Measurement of muscle mechanical properties is one method for evaluation of muscle fatigue. We have to dc measurement from skin surface in the case of measuring muscle mechanical properties in vivo. Because there are layers of skin, subcutaneous tissue and fat between skin surface and muscle, the results include their properties in addition to muscle. In this study, we examined proper measurement conditions when we measured muscle mechanical properties by using biomechanical impedance. As a result of the experiment by changing the size of vibrating tips and preload, it was clear that the higher preload on skin surface was effective.

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    Other Link： http://search.jamas.or.jp/link/ui/2000030226

  • 衝撃力に対する生体組織の線形性 (生体組織と循環機能)

    入江 隆, 岡 久雄

    バイオメカニズム学術講演会予稿集   19   109 - 112   1998.11

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    Language：Japanese   Publisher：バイオメカニズム学会  

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    Other Link： http://search.jamas.or.jp/link/ui/2001225434

  • Development of biometric impact hammer and its fundamental characteristics

    IRIE Takashi, OKA Hisao

    1997 ( 53 )   19 - 24   1997.9

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  • Correction of apparent viscoelasticity of skin surface

    Oka Hisao, Sakamoto Shunya, Irie Takashi

    IEICE technical report. ME and bio cybernetics   94 ( 169 )   45 - 52   1994.7

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    Language：Japanese   Publisher：The Institute of Electronics, Information and Communication Engineers  

    The body structure under the skin surface,like a bone and tendon has an influence on the stiffness evaluation of living tissue observed from the surface.To know the biomechanical properties of skin itself,the influence of body structure should be canceled out. This paper refers the correction method of apparent biomiomechanical properties.The biomechanical impedance is measured by using the measurement system,which applies the random vibration 30-1000HZ to the skin surface.The physical meaning of correction function is discussed,viewed from the individual or partial difference.

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Presentations

  • やわらかさに関する感性情報処理

    電子情報通信学会ヒューマン情報処理研究会  2005 

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  • AR・VR技術を用いた木材加工実習支援ツールの開発

    入江隆

    日本産業技術教育学会第66回全国大会  2023.8.20 

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    Event date： 2023.8.19 - 2023.8.20

    Language：Japanese   Presentation type：Oral presentation (general)  

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  • 製図から製作物の３Dデータを作成するアプリケーションの開発．

    近藤孝俊, 入江隆

    日本産業技術教育学会中国支部第50回大会  2021.11.13 

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    Event date： 2021.11.13

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  • STEAM 教育のための水産生物栽培キットの開発

    野毛宏文, 入江隆, 笠井俊信, 内藤憲二, 平田晴路

    日本産業技術教育学会第64回全国大会  2021.8.29 

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    Event date： 2021.8.28 - 2021.8.29

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  • Case Study on Technology Education Using a VR Material.

    KOBIKIYA Natsumi, KONDO Takatoshi, NISHIZAKI Yasuharu, IRIE Takashi

    International Conference on Technology Education 2021  2021.1.26 

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    Event date： 2021.1.25 - 2021.1.26

    Language：English   Presentation type：Poster presentation  

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  • Development of Support Tools for Woodcraft Design using VR and AR Technology.

    KONDO Takatoshi, KOBIKIYA Natsumi, IRIE Takashi

    International Conference on Technology Education 2021  2021.1.26 

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    Event date： 2021.1.25 - 2021.1.26

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  • Development of an Interactive Learning Material for Truss Structure by using a Haptic Device.

    Takashi Irie, Yuta Inoue

    The 13th International Conference on Technology Education in the Asia Pacific Region  2019.1.17 

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    Event date： 2019.1.16 - 2019.1.18

    Language：English   Presentation type：Poster presentation  

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  • 力覚デバイスを利用した粘弾性力学モデルの呈示

    日本産業技術教育学会中国支部第40回大会  2011 

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  • マルチメディア学習教材における力覚呈示の効果

    日本産業技術教育学会第52回全国大会  2009 

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  • 仮想軟物体の硬さ評価

    第14回日本バーチャルリアリティ学会大会  2009 

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  • PCを用いた学習教材における力覚呈示効果の検証

    日本産業技術教育学会中国支部第38回大会  2009 

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  • 仮想軟物体の硬さ知覚に関する研究

    日本産業技術教育学会中国支部第37回大会  2008 

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  • パッシブタッチ条件におけるやわらかさに関する感性情報処理

    電子情報通信学会技術研究報告  2007 

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  • ダイナミックタッチによる棒の長さ知覚

    日本産業技術教育学会第23回四国支部大会  2007 

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  • 粘弾性材料の物理特性の解析

    日本産業技術教育学会第21回四国支部大会  2005 

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Awards

  • ヒューマンコミュニケーション賞

    2006   電子情報通信学会   やわらかさに関する感性情報処理

    藤田尚文,入江隆,中西秀男,太田学

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    Country：Japan

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  • 奨励賞

    2001.11   バイオメカニズム学会   筋力特性に関する研究

    入江隆

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Research Projects

  • VR・AR技術を用いた木材加工実習支援ツールの開発

    Grant number：19K02731  2019.04 - 2023.03

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    入江 隆, 森岡 弘, 平田 晴路, 笠井 俊信

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    Grant amount：\4420000 （ Direct expense: \3400000 、 Indirect expense：\1020000 ）

    生徒が「材料と加工の技術」の授業の「設計」段階で完成予想物の問題点，改善点に気付くことを支援するツールの開発を目的とし，本年度は以下の取組を行った。
    １．完成予想物が描かれた製図をタブレット端末で写真撮影するアプリの開発：このアプリに必要とされる機能は，①生徒が描いた製図を写真撮影し，各生徒専用のフォルダに保存する，②撮影した写真の歪みを修正する，③写真から完成予想物を構成する部材を抽出し，ディジタルデータ化する，の3点である。本年度は②の機能を実装し，③の機能の実現に必要なデータ処理について検討を行った（機能①は令和2年度に実装済み）。また，インターフェースを見直すことにより，より直感的な操作を可能とした。
    ２．完成予想物のVR（仮想現実）空間及びAR（拡張現実）空間への提示：タブレット端末で作成されたディジタルデータから完成予想物をVR空間に提示するためのデータ（OBJファイル）に変換する手法について検討を行った。また，AR空間へ提示するためのデータ（SCNファイル）に変換する手法を確立した。具体的にはOBJ形式のデータをXcodeでSCN形式に変換する。
    ３．教育実践の準備：協力校と連絡を取り合い，開発中の教材を学校現場で利用する教育実践の方法について検討を行った。現状の中学校技術科の授業計画に直接組み込むことには困難が予想されるため，令和4年度は希望する生徒に制作物の製図を描かせ，開発したカメラアプリでディジタルデータを作成し，完成予想物をVR空間及びAR空間へ提示し，その効果を視覚的，触覚的に体験させる方向で進める予定である。

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  • Content research on physical skill guidance in the development of growth thinking and attitudes and the curriculum organization of technology education.

    Grant number：17H02692  2017.04 - 2021.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    OHTANI Tadashi

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    Grant amount：\17550000 （ Direct expense: \13500000 、 Indirect expense：\4050000 ）

    The purpose of this study was to develop a theoretical content that incorporates the latest trends of subject specialties in the 2016th curriculum organization of technology education, and mainly examined the content of skills. The result showed that the content related to knowledge and skills in 2016th curriculum of technology education was revised. The significance of the extracted content examples was also clarified and the content of skills incorporating trends in the specialized field of the subject was proposed. In addition, the content of the skills in the extracted subject specific of technology education was positioned as an important content in fostering an independent and balanced thinking and attitude from relation to the technology handled in technology education.

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  • Development of learning materials with sensation by using virtual reality technology - in the case of three dimensional figures -

    Grant number：15K00921  2015.04 - 2019.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    Irie Takashi

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    Grant amount：\4420000 （ Direct expense: \3400000 、 Indirect expense：\1020000 ）

    The learning materials, which allow learners instinctive handling of three dimensional figures in the virtual reality space and offer them the characteristics of those figures through visual and kinematic sense, were developed by using a haptic device.
    (1) The material to experience the characteristics of basic three dimensional figures. (2) The material to experience the characteristics of regular polyhedrons and semi-regular polyhedrons. (3) The material to experience the transition of regular polyhedrons by truncation. In all materials, learners were able to contact the figures, hold them, move them, rotate them, and observe them from three directional view.

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  • Content study incorporating trends in the latest field of subject specialization in course curriculum formation of Technology Education.

    Grant number：26285197  2014.04 - 2017.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    Ohtani Tadashi

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    Grant amount：\9490000 （ Direct expense: \7300000 、 Indirect expense：\2190000 ）

    This study was examined on the content theory incorporating trends in the latest subject specialized fields in order to investigate the examples of technology education contents of the 2014 edition "Technology education (revision) of the 21st century". The results showed that regarding as the content structure (material and processing technology, energy conversion technology, information technology, biological cultivate technology) proposed in the example of technology education contents, the theoretical aspect of technology including technology concept, the design and planning in the background of the created technology, the content examples of the manufacturing, producing and cultivating for realization were extracted and also proposed on the technological governance and innovation that were positioned longitudinally on the content structure.

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  • Establishment and Verification of License Renewal Support System for Technology Education Teachers based on Qualification Test System of Teaching Skills

    Grant number：20330183  2008 - 2011

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    HASHIMOTO Takayuki, FUJIKI Takashi, YAMASHITA Akinori, ANDOH Shigeki, MATSUNAGA Yasuhiro, NAGATOMI Kazuyuki, KINEFUCHI Makoto, ABIKO Hiraku, YOSHIDA Makoto, UOZUMI Akio, SAKAGUCHI Kenichi, MURAMATSU Hiroyuki, ARIKAWA Makoto, ANDO Akinobu, YANG Ping, ASADA Shigehiro, OHTANI Tadashi, SAWAMOTO Akira, YAMAMOTO Isamu, LI Ziye, IRIE Takashi, FUJIMOTO Noboru, DOHO Hirotaka, NAGASAWA Ikuo, HIRAO Kenji, OKA Masaaki, KIKUCHI Akira, ITO Yosuke, KAWASHIMA Yoshiaki, IWABUCHI Mamoru, UENO Koushi, TAKENO Hidetoshi

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    Grant amount：\18070000 （ Direct expense: \13900000 、 Indirect expense：\4170000 ）

    In this research, the supporting system for smooth introduction and implementation of the teacher's license renewing for teaching the subject of Technology in junior high school has been established and opened to the public on website. This enables efficiently the offer of the model curriculum to the renewal course implementation organizations, the renewal course database search engine to in-service teachers, and variety of related information. Moreover, the distribution of model curriculum and the leaflet of summarized research achievements contribute a lot to smoothly promoting the teacher's license renewal system.

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  • Basic research concerning " hardness " and : elasticity " in a virtual reality environment

    Grant number：18330158  2006 - 2008

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    IRIE Takashi, NAKANISHI Hideo, FUJITA Naofumi

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    Grant amount：\10060000 （ Direct expense: \9100000 、 Indirect expense：\960000 ）

    軟物体の粘弾性特性と「かたさ」「弾力性」との関係を明らかにした.「かたさ」と「弾力性」ともに, 平衡弾性係数が重要な役割を果しているが, 「かたさ」においては緩和弾性係数が正の関わりを持ち, 「弾力性」においては負の関わりを持つことが明らかとなった. また, 力覚でばいすを用いて実際には作成困難な軟物体を生成し, かたさ知覚実験を行うことにより, ひとの「かたさ」知覚に関する新たな知見を得ることができた

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  • Study on length perception of rod by active touch-Approach based on and dynamics measuremen-

    Grant number：18530561  2006 - 2007

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    NAKANISHI Hideo, IRIE Takashi, FUJITA Naofumi, URAGAKI Hiroshi

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    Grant amount：\3650000 （ Direct expense: \3200000 、 Indirect expense：\450000 ）

    By wielding a rod with band, one can successfully perceive its length, without looking at it In ecological psychology, this form of perception is termed dynamic touch, and many efforts had been made to understand its mechanism. However, it still remains ambiguous, in addition, causing an affirmative or a negative proposition on the possibility of perception by static holding. This is mainly due to a lack of information about rod movement in previous studies,.
    In this paper, dynamics of the rod is investigated by using a 6 DF (degree of freedom) tracking system. Based on the results, perception mechanism is discussed.
    (1) We set about experiments with static holding. It was found that even in the case of static holding, the and slightly moves, and that a certain movement of the rod is needed to perceive its length correctly.
    (2) We followed up experiments with an action of wielding the rod. We first tested the previous models, and verified that length perception is mainly governed by inertia moment Then, how can one perceive inertia moment and deduce length? To solve this problem, we noted muscular torque exerting to one's wrist, which appears to be a measure of inertia moment that one can primarily perceive. It was found that muscular torque, which was estimated by multiplying angular acceleration and inertia moment together is strongly related to perceived length. Based on the finding, we newly proposed a muscular torque model.
    (3) To extend the proposed model to length perception of elastic as well as rigid rod, it is necessary to detect muscular torque directly. Although the study is still in progress, it was suggested that measuring an electrical potential on one's arm accompanied with nod yielding appears to be a prom icing way to direct detection of muscular torque.

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  • A study of sensation evaluation and biological measurement on perception of softness

    Grant number：13410027  2001 - 2003

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    FUJITA Naofumi, NAKANISHI Hideo, IRIE Takashi

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    Grant amount：\7500000 （ Direct expense: \7500000 ）

    (1)Using the Semantic Differential Method, we investigated how many dimensions were needed to express the quality of softness. Factor analysis revealed that two dimensions were necessary. (2)We investigated what kinds of physical cues affected the perception of softness. Two candidates were elasticity and viscosity. We found out that elasticity had the main cause to perceive softness. (3)The stimuli used could be described by Five-Factor-Maxwell Model. The question was if all of these five factors were effective to evaluate the softness of the stimuli. The multi-regression analysis with two populations revealed that three factors were sufficient to describe the evaluations of the stimuli. (4)Both mechanoreceptors and proprioception may have major roles on evaluating the softness of the stimulus. If we indent the soft object by a stick, the use of mechanoreceptors will be greatly deduced. Using two kinds of sticks whose areas are either bigger(φ15mm) or smaller(φ10mm) than that of fingerpad, we compared the evaluation of softness. The evaluated values were φ15mm>fingerpad>φ10mm, suggesting that the contribution of mechanoreceptors would be restricted. (5)A man applies load on a soft object with his fingers to evaluate its hardness and detect a force, deformation and touch sensation. As soft objects in our environment are finite, the boundary conditions have a significant effect on our evaluation. Hardness evaluation of soft objects with different kinds of thickness was examined and its accuracy was confirmed. The result suggests that the accuracy of the thickness and the size of object severely affect the hardness evaluation in a virtual environment.

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  • Control Systems of Electric Machinery (2) （2021academic year） Second semester  - 水3～4

  • Practice of Electrical Engineering (1) （2021academic year） 1st semester  - 火7,火8

  • Practice of Electrical Engineering (2) （2021academic year） Second semester  - 火7,火8

  • Secondary Education Technology Content Construction Ⅰ （2020academic year） 1st semester  - 火3,火4

  • Secondary Education Technology Content Construction Ⅱ （2020academic year） Second semester  - 火3,火4

  • Energy conversion　Ⅰ （2020academic year） Third semester  - 金7,金8

  • Energy conversion　Ⅱ （2020academic year） Fourth semester  - 金7,金8

  • Electronic Technology Ⅰ （2020academic year） Third semester  - 木1,木2

  • Electronic Technology　Ⅱ （2020academic year） Fourth semester  - 木1,木2

  • Electrical Science　Ⅰ （2020academic year） 1st semester  - 木1,木2

  • Electrical Science　Ⅱ （2020academic year） Second semester  - 木1,木2

  • Seminar of Electrical Engineering Ⅰ （2020academic year） 1st semester  - 火7,火8

  • Seminar of Electrical Engineering Ⅱ （2020academic year） Second semester  - 火7,火8

  • Development of the Curriculum of Electrical Technology (1) （2020academic year） 1st semester  - 水3,水4

  • Development of the Curriculum of Electrical Technology (2) （2020academic year） Second semester  - 水3,水4

  • Approaches to Education （2020academic year） 1st semester  - 火1,火2

  • Practical utilization of knowledge （2020academic year） Fourth semester  - その他

  • Craftsmanship and Information Education in the Elementary School (1) （2020academic year） Third semester  - 金1,金2

  • Craftsmanship and Information Education in the Elementary School (2) （2020academic year） Fourth semester  - 金1,金2

  • Craftsmanship and Information Education in the Elementary School Ⅰ （2020academic year） Third semester  - 金1,金2

  • Craftsmanship and Information Education in the Elementary School　Ⅱ （2020academic year） Fourth semester  - 金1,金2

  • Energy and Environmental Education in Elementary Schools (1) （2020academic year） Third semester  - 金5,金6

  • Energy and Environmental Education in Elementary Schools (2) （2020academic year） Fourth semester  - 金5,金6

  • Energy and Environmental Education in Elementary Schools　Ⅰ （2020academic year） Third semester  - 金5,金6

  • Energy and Environmental Education in Elementary Schools　Ⅱ （2020academic year） Fourth semester  - 金5,金6

  • Special Studies in Educational Science(Electorical Technology IA) （2020academic year） 1st semester  - 火5,火6

  • Special Studies in Educational Science(Electorical Technology IB) （2020academic year） Second semester  - 火5,火6

  • Special Studies in Educational Science(Electorical Technology IIA) （2020academic year） Third semester  - 火5,火6

  • Special Studies in Educational Science(Electorical Technology IIB) （2020academic year） Fourth semester  - 火5,火6

  • Project Research in Educational Science （2020academic year） 1st-4th semester  - その他

  • Basic Mathematical and Data Sciences （2020academic year） Third semester  - 木3,木4

  • Practice for Mechanical Engineering (1) （2020academic year） Third semester  - 月7,月8

  • Practice for Mechanical Engineering (2) （2020academic year） Fourth semester  - 月7,月8

  • Electronic Technology (1) （2020academic year） Third semester  - 木1,木2

  • Electronic Technology (2) （2020academic year） Fourth semester  - 木1,木2

  • Introduction to Electricity and Magnetism (1) （2020academic year） Third semester  - 金7,金8

  • Introduction to Electricity and Magnetism (2) （2020academic year） Fourth semester  - 金7,金8

  • Introduction to Electricity and Magnetism (1) （2020academic year） 1st semester  - 木1,木2

  • Introduction to Electricity and Magnetism (2) （2020academic year） Second semester  - 木1,木2

  • Practice of Electrical Engineering (1) （2020academic year） 1st semester  - 火7,火8

  • Practice of Electrical Engineering (2) （2020academic year） Second semester  - 火7,火8

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