Rchr
J-GLOBAL ID：200901097510120312
Update date: Sep. 24, 2024
Takehara Kohsei
タケハラ コウセイ | Takehara Kohsei
Affiliation and department：
Job title：
Associate Professor,Associate Professor
Research field (1)：
Hydroengineering
Research keywords (2)：
水工水理学
, Hydraulic Engineering
Research theme for competitive and other funds (41)：
- 2022 - 2025 鰭の柔らかさと動きのしなやかさがもたらす移動能力と機動性向上の解明
- 2021 - 2024 High-speed video image analyses on actions of sand particles in a water jet obliquely impinging against a solid surface
- 2020 - 2023 魚群行動の流体力学的機能性の解明
- 2019 - 2022 Influence of Pore Connectivity on Upscaling Effects of Porous Media Flow
- 2018 - 2022 情報科学と画像解析を応用した新技術展開による養殖魚成育生産管理システムの開発
- 2018 - 2021 Phosphorescent Lifetime Imaging with a Customized Ulta-high-speed Video
- 2016 - 2019 A Fundamental Study on analysis of pore structure of porous media and elucidation of generation mechanism of turbulence based on the analysis
- 2015 - 2018 Development of a 4D-measurement technology of wind pressure with PSP and its application to the pressure field over wind waves
- 2015 - 2017 Development of algorithm for number of swimming fish individuals: a new approach by using PTV technique
- 2014 - 2017 Development of Measurement Method for Internal Displacement in Concrete with X Ray Computed Tomography and Particle Tracking Velocimetry
- 2013 - 2015 Verification of an image sensor stucture to achieve 1 Gfps
- 2010 - 2014 Experimental and Numerical Study on the Unstable ModeII Crack Growth with Image Analysis
- 2011 - 2012 Development of measurement techniques of three dimensional velocity around a microbe by using a differential interference contrast microscope
- 2008 - 2010 A study on breaking wind waves with white caps by means of Visualization with high-speed video cameras
- 2006 - 2009 Image analysis of the unstable crack growth under compresive loading condition with ultra-high-speed video camera
- 2007 - 2008 Micro and Macro scopic Characteristics of Sea Surface Wave Breaking
- 2003 - 2005 Toward a wall-stress model for LES over rough boundaries ; contributions to experimental and simulation technology
- 2003 - 2005 Experimental study on the bubble-droplet chain process by using the world fastest high-speed video camera
- 2003 - 2005 Development of measurement method for investigating three dimensional turbulence structures in liquid-slid flow
- 2003 - 2005 Investigation of the mechanism of the generation of rip current and development of the procedure for predicting rip current using remote sencing.
- 2002 - 2004 Development of an Integrated Measurement System of Water Bodies by Means of Infrared PIV
- 2002 - 2003 Hydraulic characteristic on flow field and sediment movement inside and outside seagrass fields
- 2001 - 2002 PIV法および直接数値計算法による流砂のマイクロメカニクスの解明
- 2000 - 2002 Analysis of gas transfer mechanisms due to air bubble and turbulence at the air-water interface
- 1999 - 2002 Breaking Mechanism of Water Surface and Detailed Structure of Wave Breaking-Caused Air-Entrained Turbulence
- 2000 - 2001 レーザー・マーキングPTVの開発
- 1999 - 2001 Water Exchange Mechanism and Red Tide Prediction in the Tanabe Bay
- 1999 - 2000 水表面に作用する風応力によって起こる気-水運動と気体輸送現象の可視化計測法の開発
- 1998 - 1999 Studies on elucidation of the air-water gas transfer mechanism on the surface of breakers and the modeling of it
- 1999 - ローカルリモートセンシング技術の開発
- 1996 - 1997 粒子マスク法と動的認識理論を援用したPTVのための高性能の粒子抽出手法の開発
- 1996 - 1996 気泡の破裂・水滴の衝突の連鎖過程による水表面の気体輸送に関する研究
- 1995 - 1995 水表面からの炭酸ガス溶入過程の定量可視化計測法の開発
- 1994 - 1995 Study on Interaction of Motions of Water and Immersed Low-Refractive Transparent Bodies
- 1992 - 1993 Refractivity Matcing of Water and Transparent Solid Particles and its Application to Measurement of Liquid-Solid Two-Phase Flow
- 1992 - 1992 雨滴による水表面での気体の輸送過程の可視化
- 1991 - 1991 トレーサー粒子の自動追跡による3次元流速測定法の開発
- 水表面での気体輸送
- 流れの可視化画像計測法の開発
- Gas transfer at water surfaces
- Development of methods to measure flow fields by using image processing
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Papers (148)：
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Go Eguchi, Tsutomu Takagi, Shinsuke Torisawa, Kohsei Takehara. Drafting behaviors in fish induced by a local pressure drop around a hydrofoil model. Journal of Theoretical Biology. 2024. 588. 111821-111821
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S. Abe, T. Takagi, S. Torisawa, K. Abe, H. Habe, N. Iguchi, K. Takehara, S. Masuma, H. Yagi, T. Yamaguchi, et al. Development of fish spatio-temporal identifying technology using SegNet in aquaculture net cages. Aquacultural Engineering. 2021. 93. 102146-102146
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Nguyen Hoai Ngo, Kazuhiro Shimonomura, Taeko Ando, Takayoshi Shimura, Heiji Watanabe, Kohsei Takehara, Anh Quang Nguyen, Edoardo Charbon, Takeharu Goji Etoh. A Pixel Design of a Branching Ultra-Highspeed Image Sensor. Sensors. 2021. 21. 7. 2506-2506
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Yasuhide TAKANO, Shoma SUGAKI, Kazuyuki NAKAKITA, T. Goji ETOH, Kohsei TAKEHARA. PRELIMINARY STUDY ON WIND PRESSURE MEASUREMENT ON SOLID WAVY BED WITH PRESSURE SENSITIVE PAINT. Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering). 2021. 77. 2. I_919-I_924
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Nobuyuki HISASUE, Kohsei TAKEHARA. EXPERIMENTAL STUDY ON RELATIONSHIP BETWEEN SUBMERGENCE DEPTH OF HORIZONTAL INTAKE PIPE AND OCCURRENCE OF INTAKE VORTEX. Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering). 2021. 77. 2. I_817-I_822
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MISC (156)：
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高木力, 江口剛, 田中優斗, 竹原幸生, 鳥澤眞介. Exploiting High-Speed Imaging to Understand Fish Swimming Mechanisms. 高速度イメージングとフォトニクスに関する総合シンポジウム講演論文集(CD-ROM). 2023. 2023
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Eguchi Go, Torisawa Shinsuke, Takehara Kohsei, Takagi Tsutomu. Fish balances flow resistance and high pressure in stagnation area. Journal of Aero Aqua Bio-mechanisms. 2023. 10. 1. 2-8
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久末 信幸, 竹原 幸生. 水平取水設備における水平管の吸込流速と渦発生に関する実験的検討-EXPERIMENTAL STUDY ON RELATIONSHIP BETWEEN SUCTION VELOCITY AND OCCURRENCE OF INTAKE VORTEX IN HORIZONTAL INTAKE. 水工学論文集 Annual journal of Hydraulic Engineering, JSCE / 土木学会水工学委員会 編. 2020. 65. I_931-936
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Eguchi Go, Aoki Yuki, Torisawa Shinsuke, Takehara Kohsei, Takagi Tsutomu. Mechanical efficiency of fish thrust induced by tail beating: comparison between kinetic energy and metabolic energy. Journal of Aero Aqua Bio-mechanisms. 2019. 8. 1. 54-62
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阿部悟, 高木力, 米山和良, 鳥澤眞介, 波部斉, 阿部孝司, 井口信和, 竹原幸生, 升間主計, 八木洋樹, et al. 魚群を構成する個体の計数技術の開発-個体画像抽出手法の検討-. 日本水産学会大会講演要旨集. 2019. 2019
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Lectures and oral presentations (28)：
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魚群を構成する個体の計数技術の開発-個体画像抽出手法の検討-
(日本水産学会大会講演要旨集 2019)
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A Silicon image sensor of the frame interval of 10 ns cantured Flying Light
(映像情報メディア学会技術報告 2018)
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The ultimate high-speed image sensor: from 10ns to 50ps
(映像情報メディア学会技術報告 2018)
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画像解析を用いた非接触型養殖魚計測システムの開発
(日本水産工学会学術講演会講演論文集 2017)
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遊泳する魚群の個体数計測システムの開発-個体画像抽出手法の違いが計数精度に与える影響-
(日本水産学会大会講演要旨集 2017)
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Education (4)：
- - 1988 Kyushu University
- - 1988 Kyushu University Graduate School, Division of Engineering
- - 1986 Kyushu Institute of Technology School of Engineering
- - 1986 Kyushu Institute of Technology Faculty of Engineering
Professional career (2)：
- (BLANK) (Kyushu University)
- (BLANK) (Kyushu University)
Awards (7)：
Association Membership(s) (3)：
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