{"id":68,"date":"2018-04-02T13:10:02","date_gmt":"2018-04-02T04:10:02","guid":{"rendered":"http:\/\/www.naigai-web.jp\/okadai_eng\/?page_id=68"},"modified":"2021-02-16T17:11:29","modified_gmt":"2021-02-16T08:11:29","slug":"department-of-electrical-and-communication-engineering","status":"publish","type":"page","link":"https:\/\/www.engr.okayama-u.ac.jp\/en\/research\/department-of-electrical-and-communication-engineering\/","title":{"rendered":"Department of Electrical and Communication Engineering"},"content":{"rendered":"<div id=\"electrical\">\r\n<p class=\"date\">As of March 2018<\/p>\r\n<!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Applied Superconductivity Engineering Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~ase\/)<\/p>\r\n<p>SeokBeom KIM, Professor<\/p>\r\n<p>Hiroshi UEDA, Associate Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>Fabrication of Superconducting Motor\/Generator Using High Temperature Superconducting (HTS) Wires<\/li>\r\n\t<li>Development of Compact NMR\/MRI Magnets Using HTS Bulks and Wires<\/li>\r\n\t<li>Developments of 3-D Superconducting Actuator and a Non-Contact Levitation System Using HTS Bulks<\/li>\r\n\t<li>Medical Application of HTS Magnet<\/li>\r\n\t<li>Development of Numerical Simulation Technique for HTS Application and Electrical Equipment<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>SeokBeom Kim, Katusya Hojo and Daiki Miyazawa, \u201cStudy on the Magnetic Field Homogeneity of HTS Bulk Magnets Including the Degraded HTS Bulk for Developing the Compact NMR Relaxometry,\u201d IEEE Trans. on Applied Superconductivity, Vol. 26, No. 4, 4302104, January 2016.<\/li>\r\n\t<li>Hiroshi Ueda, Yohei Imaichi, Tao Wang, Atsushi Ishiyama, So Noguchi, Sadanori Iwai, Hiroshi Miyazaki, Taizo Tosaka, Shunji Nomura, Tsutomu Kurusu, Shinichi Urayama, and Hidenao Fukuyama, \u201cNumerical Simulation on Magnetic Field Generated by Screening Current in 10-T-Class REBCO Coil,\u201d IEEE Trans. on Applied Superconductivity, Vol. 26, No. 4, 4701205, June 2016.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Electric Power Conversion System Engineering Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"photo\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2018\/04\/Electric-Power-Conversion-System-Engineering-Laboratory.jpg\" alt=\"\" width=\"640\" height=\"522\" class=\"alignnone size-full wp-image-73\" \/><\/div>\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\"><a href=\"http:\/\/www.ec.okayama-u.ac.jp\/~epc\/en\/index.html\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"broken_link\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~epc\/en\/index.html)<\/a><\/p>\r\n<p>Eiji HIRAKI, Professor<\/p>\r\n<p>Nozomu NANATO, Associate Professor<\/p>\r\n<p>Kazuhiro UMETANI, Assistant Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>Protection and Diagnosis of Superconducting Magnets<\/li>\r\n\t<li>Compact and High Efficiency AC Power Supply with a Single Phase <br \/>\r\nSuperconducting Transformer<\/li>\r\n\t<li>Wireless Power Transfer Systems \/ High Frequency Induction Heating<\/li>\r\n\t<li>Innovative SRM Drive for EVs<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>Tomohide Shirakawa, Genki Yamasaki, Kazuhiro Umetani and Eiji Hiraki, \u201cExtremum Co-Energy Principle for Analyzing AC Current Distribution in Parallel-Connected Wires of High-Frequency Power Inductors,\u201d IEEJ Journal of Industry Applications, Vol. 7, No.1, pp.35-42, Jan. 2018<\/li>\r\n\t<li>Kazuhiro Umetani, Kyota Aikawa and Eiji Hiraki, \u201cStraightforward Measurement Method of Common Source Inductance for Fast Switching Semiconductor Devices Mounted On-board,\u201d IEEE Transactions on Industrial Electronics, Vol. 64, Issue 10, pp.8258-8267, Oct. 2017<\/li>\r\n\t<li>Nozomu Nanato, Noriyuki Kishi, Yuhi Tanaka and Mikishi Kondo, \u201cBasic study for a large AC current supply with a single phase air-core Bi2223 high temperature superconducting transformer,\u201d Journal of Physics: Conference Series, Vol. 871, 012101, 2017<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Power System Control Engineering Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"photo\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2018\/04\/Power-System-Control-Engineering-Laboratory.jpg\" alt=\"\" width=\"640\" height=\"530\" class=\"alignnone size-full wp-image-76\" \/><\/div>\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\"><a href=\"http:\/\/www.ec.okayama-u.ac.jp\/~psc\/index.html\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"broken_link\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~psc\/index.html)<\/a><\/p>\r\n<p>Shigeyuki FUNABIKI, Professor<\/p>\r\n<p>Jun IMAI, Associate Professor<\/p>\r\n<p>Akiko TAKAHASHI, Assistant Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>Voltage Control Methods in Distribution Systems with a Large Number of PV Systems<\/li>\r\n\t<li>Optimal Allocation of FACTS in a High-Voltage Distribution System<\/li>\r\n\t<li>Measuring Methods for Solar Irradiance Based on Image Analyses<\/li>\r\n\t<li>Active Vibrating Control of Robot Arms: Digital Real Time Implementation<\/li>\r\n\t<li>Temperature Profile Control of Blast Furnaces: Sensor Optimal Location<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>Akiko Takahashi, Akihiro Yamagata, Jun Imai and Shigeyuki Funabiki, \u201cDecomposition of Fluctuating Photovoltaic Generation Power in Frequency Bands and Analysis of Chaotic Properties,\u201d Electrical Engineering in Japan, Vol. 201, No. 4, pp. 26-33, December 2017.<\/li>\r\n\t<li>Akiko Takahashi, Hiroaki Morio, Jun Imai and Shigeyuki Funabiki, \u201cAn Estimation Method for Solar Radiation Intensity Using Web Camera,\u201d Journal of the Japan Institute of Energy, Vol. 94, No. 11, pp. 1330-1336, November 2015.<\/li>\r\n\t<li>Jun Imai, Katsuyuki Noso, Akiko Takahashi, and Shigeyuki Funabiki, \u201cOn Mixed Galerkin Modeling for Controller Design of Boundary Control Systems,\u201d IFAC-PapersOnLine, Vol.50, Issue 1, pp. 7133-7138, 2017.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Advanced Electro Measurement Technology Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"photo\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2018\/04\/Advanced-Electro-Measurement-Technology-Laboratory.jpg\" alt=\"\" width=\"1098\" height=\"403\" class=\"alignnone size-full wp-image-72\" \/><\/div>\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\"><a href=\"http:\/\/www.ec.okayama-u.ac.jp\/~sense\/\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"broken_link\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~sense\/)<\/a><\/p>\r\n<p>Keiji TSUKADA, Professor<\/p>\r\n<p>Toshihiko KIWA, Associate Professor<\/p>\r\n<p>Kenji SAKAI, Assistant Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>Highly Sensitive Magnetic Measurement System<\/li>\r\n\t<li>Non-Destructive Evaluation by a Magnetic Method<\/li>\r\n\t<li>Gas and Ion Sensing System<\/li>\r\n\t<li>Terahertz Measurement System<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>Keiji Tsukada, Yatsuse Majima, Yoshihiro Nakamura, Takuya Yasugi, Nangnang Song, Kenji Sakai, and Toshihiko Kiwa, \u201cDetection of inner cracks in thick steel plates using unsaturated AC magnetic flux leakage testing with a magnetic resistance gradiometer\u201d, IEEE TRANSACTIONS ON MAGNETICS, Vol. 53, No. 11, 2501305, Nov. 2017<\/li>\r\n\t<li>Takuya Kuwana, Masahiro Ogawa, Kenji Sakai, Toshihiko Kiwa and Keiji Tsukada, \u201cLabel-free detection of low-molecular-weight samples using a terahertz chemical microscope\u201d, Applied Physics Express, Vol. 9, No. 4, 042401, March 2016<\/li>\r\n\t<li>Kenji Sakai, Tsubasa Kizu, Toshihiko Kiwa and K. Tsukada, \u201cMagnetic AC impedance analysis method using high-Tc SQUID based magnetic measurement system\u201d, IEEE Transactions on Applied Superconductivity, Vol. 27, No. 4, 1601205, July 2017<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Nanodevice and Materials Engineering Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"photo\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2018\/04\/Nanodevice-and-Materials-Engineering-Laboratory.jpg\" alt=\"\" width=\"640\" height=\"853\" class=\"alignnone size-full wp-image-74\" \/><\/div>\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\"><a href=\"http:\/\/www.ec.okayama-u.ac.jp\/~dm\/index_e.html\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"broken_link\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~dm\/index_e.html)<\/a><\/p>\r\n<p>Yasuhiko HAYASHI, Professor<\/p>\r\n<p>Yoshifumi YAMASHITA, Associate Professor<\/p>\r\n<p>Takeshi NISHIKAWA, Assistant Professor<\/p>\r\n<p>Masaki HADA, Assistant Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>Advanced Nanocarbon Materials &amp; Devices, Organic Electronics Materials &amp; Devices<\/li>\r\n\t<li>Defect Properties and Engineering in Semiconductor Crystals<\/li>\r\n\t<li>Material Processing by Atmospheric Pressure Plasmas<\/li>\r\n\t<li>Photoinduced Structural Dynamics of Functional Materials Explored with Femtosecond Electron Diffraction and Optical Spectroscopy<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>Masaki Hada, Yoichi Hasegawa, Ryota Nagaoka, Tomoya Miyake, Ulugbek Abdullaev, Hiromi Ota, Takeshi Nishikawa, Yoshifumi Yamashita and Yasuhiko Hayashi, \u201d In-situ X-ray diffraction reveals the degradation of crystalline CH3NH3PbI3 by water-molecule collisions at room temperature\u201d Jpn. J. Appl. Phys. 57, 028001 (2018).<\/li>\r\n\t<li>Yoshifumi Yamashita, Ryu Nakata, Takeshi Nishikawa, Masaki Hada, and Yasuhiko Hayashi, \u201cExpansion of Shockley stacking fault observed by scanning electron microscope and partial dislocation motion in 4H-SiC,\u201d J. Appl. Phys. 123, 161580 (2018).<\/li>\r\n\t<li>Masaki Hada, Shohei Saito, Sei\u2019ichi Tanaka, Ryuma Sato, Masahiko Yoshimura, Kazuhiro Mouri, Kyohei Matsuo, Shigehiro Yamaguchi, Mitsuo Hara, Yasuhiko Hayashi, Fynn R\u00f6hricht, Rainer Herges, Yasuteru Shigeta, Ken Onda, R. J. Dwayne Miller, \u201d Structural Monitoring of the Onset of Excited-State Aromaticity in a Liquid Crystal Phase\u201d J. Am. Chem. Soc. 139, 15792\u201315800 (2017).<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Multiscale Device Design (Tsuruta) and Microwave Circuit (Sanagi) Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\"><a href=\"http:\/\/www.ec.okayama-u.ac.jp\/~mdd\/index.html\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"broken_link\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~mdd\/index.html)<\/a><\/p>\r\n<p class=\"url\"><a href=\"http:\/\/www.ec.okayama-u.ac.jp\/~micro\/index.html\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"broken_link\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~micro\/index.html)<\/a><\/p>\r\n<p>Kenji TSURUTA, Professor<\/p>\r\n<p>Minoru SANAGI, Associate Professor<\/p>\r\n<p>Atsushi ISHIKAWA, Assistant Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li><i>Ab-Initio<\/i>\/Multiscale Computational Design of Energy-Harvesting Nanomaterials\/Nanodevices<\/li>\r\n\t<li>Phononic Crystals and Acoustic Metamaterials for Energy Harvesting Systems<\/li>\r\n\t<li>Plasmonic Metamaterials for Optical Functional Devices<\/li>\r\n\t<li>Microwave Multiple-Port Power Divider\/Combiner<\/li>\r\n\t<li>Efficient Microwave-DC Interconversion<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>A. Ishikawa, S. Hara, T. Tanaka, Y. Hayashi, and K. Tsuruta, \"Cross-Polarized Surface-Enhanced Infrared Spectroscopy by Fano-Resonant Asymmetric Metamaterials,\" Scientific Reports Vol. 7, pp. 3205-1-8, June 2017.<\/li>\r\n\t<li>Y. Iwasaki, K. Tsuruta, and A. Ishikawa, \"Rectification of Lamb wave propagation in thin plates with piezo-dielectric periodic structures,\" Japanese Journal of Applied Physics Vol. 55, pp. 07KB02-1-4, May 2016.<\/li>\r\n\t<li>M. Sanagi, J. Fujiwara, K. Fujimori, and S. Nogi, \"Beam Control in Unilaterally Coupled Active Antennas with Self-oscillating Harmonic Mixers,\"IEICE Trans. Electron., Vol.E88-C, No.7, pp.1375-1381, July 2005.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Optoelectronic and Electromagnetic Wave Engineering<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"photo\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2018\/04\/Optoelectronic-and-Electromagnetic-Wave-Engineering.jpg\" alt=\"\" width=\"640\" height=\"508\" class=\"alignnone size-full wp-image-75\" \/><\/div>\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\"><a href=\"http:\/\/www.ec.okayama-u.ac.jp\/~opt\/index.html\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"broken_link\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~opt\/index.html)<\/a><\/p>\r\n<p>Hideki FUKANO, Professor<\/p>\r\n<p>Kazuhiro FUJIMORI, Associate Professor<\/p>\r\n<p>Shuji TAUE, Assistant Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>Optical Fiber Sensors<\/li>\r\n\t<li>Optically Powered Sensor<\/li>\r\n\t<li>Study of Wireless Power Transmission<\/li>\r\n\t<li>Study of Antenna<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>Hideki Fukano, Daichi Watanabe, and Shuji Taue, \u201cSensitivity characteristics of multimode-interference optical-fiber temperature-sensor with solid cladding material,\u201d IEEE Sensors Journal, Vol. 16, No. 24, pp. 8921-8927, 2016.<\/li>\r\n\t<li>Shuji Taue, Tsuyoshi Takahashi, and Hideki Fukano, \u201cCoating-free reflection technique for fiber-optic sensors based on multimode interference: a temperature-sensing study,\u201d Jpn. J. Appl. Phys., Vol. 55, 08RE03, 2016.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Information Transmission Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\"><a href=\"http:\/\/www.ec.okayama-u.ac.jp\/~trans\/\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"broken_link\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~trans\/)<\/a><\/p>\r\n<p>Nobumoto YAMANE, Associate Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>Medical Image Processing and Diagnostic Imaging<\/li>\r\n\t<li>Earth Quake Prediction<\/li>\r\n\t<li>Multi-media Signal Processing and Compression<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>Hirofumi Inoue, Nobumoto Yamane and Hisao Oka \u201cAn Automatic Visual Inspection Method Based on Supervised Machine Learning for Rapid On-Site Evaluation in EUS-FNA,\u201d IEEE Society of Instruction and Control Engineers (CISE 2014), September 2014.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Information System Design Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"photo\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2018\/04\/Information-System-Design-Laboratory.jpg\" alt=\"\" width=\"640\" height=\"440\" class=\"alignnone size-full wp-image-80\" \/><\/div>\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\"><a href=\"http:\/\/www.ec.okayama-u.ac.jp\/~infsys\/index_en.html\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"broken_link\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~infsys\/index_en.html)<\/a><\/p>\r\n<p>Hiroto KAGOTANI, Senior Assistant Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>Design Methods of Asynchronous Processors<\/li>\r\n\t<li>Reconfigurable Computer Architecture<\/li>\r\n\t<li>General Purpose Computing on GPU<\/li>\r\n\t<li>Secure Cryptographic Hardware Implementation<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>Hiroto Kagotani, Yuji Sugiyama, Takuya Okamoto \u201cAn Efficient Algorithm to Determine Equivalence of Pipelined Dependency Graphs for Their Simplification,\u201d IEICE Transactions on Information and Systems, Vol. J100-D, No. 6, pp. 616-626, June 2017.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Computer Networks and Medical Information Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"photo\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2018\/04\/Computer-Networks-and-Medical-Information-Laboratory.jpg\" alt=\"\" width=\"640\" height=\"533\" class=\"alignnone size-full wp-image-77\" \/><\/div>\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~net\/index-en.html)<\/p>\r\n<p>Tokumi YOKOHIRA, Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>Highly Distributed Cloud Computing Environment<\/li>\r\n\t<li>Design of Virtual Networks<\/li>\r\n\t<li>Technologies to Improve the Performance of Internet Communication Protocols<\/li>\r\n\t<li>Technologies to Treat Medical Information<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>Shigeyuki Osada, Ryo Miyayama, Yukinobu. Fukushima, and Tokumi Yokohira, \u201cTCP Incast Avoidance Based on Connection Serialization in Data Center Networks,\u201d International Journal of Computer Networks and Communications, Vol. 8, pp. 83-102, July 2016.<\/li>\r\n\t<li>Yukinobu Fukushima, Tutomu Murase, Gen Motoyoshi, Tokumi Yokohira, and Tatsuya Suda, \u201cDetermining Server Locations in Server Migration Service to Minimize Monetary Penalty of Dynamic Server Migration,\u201d Journal of Network and Systems Management, 41 pages, 2018.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Mobile Communications Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"photo\" style=\"width: 60%;\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2018\/04\/Mobile-Communications-Laboratory.jpg\" alt=\"\" width=\"640\" height=\"304\" class=\"alignnone size-full wp-image-81\" \/><\/div>\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\"><a href=\"http:\/\/www.ec.okayama-u.ac.jp\/~mob\/index_eng.htm\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"broken_link\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~mob\/index_eng.htm)<\/a><\/p>\r\n<p>Kazuhiro UEHARA, Professor<\/p>\r\n<p>Shigeru TOMISATO, Associate Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>LED Visible Light Wireless Communications<\/li>\r\n\t<li>Radio Propagation Modeling for Transmission Paths between Underground and Ground<\/li>\r\n\t<li>Non-Linear Distortion Noise Reduction in Multi-Band OFDM Transmission<\/li>\r\n\t<li>Signal Separation Method for Sensor Terminals by Accumulation Batch Signal Processing<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>Takahiro Chikamori, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara, \u201cTransmission Quality Improvement by LED Back-off Optimization for Visible Light Wireless Communications,\u201d Proc. of the 20th International Symposium on Wireless Personal Multimedia Communications (WPMC 2017), pp. 228-232, Dec. 2017.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Information Security Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"photo\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2018\/04\/Information-Security-Laboratory.jpg\" alt=\"\" width=\"640\" height=\"428\" class=\"alignnone size-full wp-image-79\" \/><\/div>\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\">(URL:http:\/\/isec.ec.okayama-u.ac.jp\/home\/)<\/p>\r\n<p>Yasuyuki NOGAMI, Professor<\/p>\r\n<p>Takuya KUSAKA, Senior Assistant Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>Elliptic Curve Cryptography<\/li>\r\n\t<li>Error Correction Code<\/li>\r\n\t<li>Lattice-Based Cryptography<\/li>\r\n\t<li>Discrete Mathematics<\/li>\r\n\t<li>IoT Security<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>Takuya Kusaka, Sho Joichi, Ken Ikuta, Md. Al-Amin Khandaker,, Yasuyuki Nogami, Satoshi Uehara, Nariyoshi Yamai, and Sylvain Duquesne, \u201cSolving 114-bit ECDLP for a Barreto-Naehrig Curve,\u201d The 20th Annual International Conference on Information Security and Cryptology (ICISC2017), 2017.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Multimedia Radio Systems Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\"><a href=\"http:\/\/www.ec.okayama-u.ac.jp\/~wcs\/\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"broken_link\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~wcs\/)<\/a><\/p>\r\n<p>Satoshi DENNO, Professor<\/p>\r\n<p>Yafei HOU, Assistant Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>Random Access Techniques for Spatial Multiplexing in Wireless Local Area Networks<\/li>\r\n\t<li>Physical Layer Network Coding in Wireless Bidirectional Relaying Systems<\/li>\r\n\t<li>Noise Cancellation Techniques for Electric Vehicles<\/li>\r\n\t<li>Machine learning for cognitive radio<\/li>\r\n\t<li>Signal process and applications, Radio over fiber<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>Cao Lengchi and Satoshi Denno, \u201cNonlinear Precoding for XOR Physical Layer Network Coding in Bi-directional MIMO Relay Systems,\u201d IEICE Trans. Commun., Vol.E100-B, No.3, pp.440-448, Mar. 2017.<\/li>\r\n\t<li>Satoshi Denno and Yusuke Murakami, \u201cUplink Multiuser MIMO Access With Probe Packets in Distributed Wireless Networks,\u201d IEICE Trans. Commun., Vol.E101-B, No.6, 2018.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Distributed System Design Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"photo\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2018\/04\/Distributed-System-Design-Laboratory.jpg\" alt=\"\" width=\"640\" height=\"475\" class=\"alignnone size-full wp-image-78\" \/><\/div>\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\"><a href=\"http:\/\/www.ec.okayama-u.ac.jp\/~dist\/index_eng.html\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"broken_link\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~dist\/index_eng.html)<\/a><\/p>\r\n<p>Nobuo FUNABIKI, Professor<\/p>\r\n<p>Minoru KURIBAYASHI, Associate Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>Java Programming Learning Assistant System<\/li>\r\n\t<li>Desktop Grid Computing System<\/li>\r\n\t<li>Elastic Wireless LAN System<\/li>\r\n\t<li>Digital Watermarking and its Applications<\/li>\r\n\t<li>Design of Aesthetic QR Code<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>M. Kuribayashi and N. Funabiki, \u201cUniversal scoring function based on bias equalizer for bias-based fingerprinting codes,\u201d IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E101-A, No.1, pp.119-128, January 2018.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Optical and Electromagnetic Waves Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"photo\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2018\/04\/Optical-and-Electromagnetic-Waves-Laboratory.jpg\" alt=\"\" width=\"640\" height=\"420\" class=\"alignnone size-full wp-image-82\" \/><\/div>\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\"><a href=\"http:\/\/www.ec.okayama-u.ac.jp\/~oew\/index_en.html\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"broken_link\">(URL:http:\/\/www.ec.okayama-u.ac.jp\/~oew\/index_en.html)<\/a><\/p>\r\n<p>Yoshitaka TOYOTA, Professor<\/p>\r\n<p>Kengo IOKIBE, Assistant Professor<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>Electromagnetic Compatible Design of Electrical and Electronic Devices and Systems<\/li>\r\n\t<li>Control of Electromagnetic Wave Propagation by Periodic Structure<\/li>\r\n\t<li>Measurement, Modeling and Simulation of EMC Characteristics of Semiconductor Devices<\/li>\r\n\t<li>Countermeasures Against Side-channel Attacks on Cryptographic Devices<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>Yoshitaka Toyota, Shohei Kan, Kengo Iokibe, \u201cSuppression of Mode Conversion by Using Tightly Coupled Asymmetrically Tapered Bend in Differential Lines,\u201d IEICE Transactions on Communications, Vol. E98-B, No. 7, pp. 1188-1195, July 2015.<\/li>\r\n\t<li>Kengo Iokibe, Tetsuo Amano, Kaoru Okamoto and Yoshitaka Toyota, \u201cEquivalent Circuit Modeling of Cryptographic Integrated Circuit for Information Security Design,\u201d IEEE Transactions on Electromagnetic Compatibility, Vol. 55, No.3, pp. 581-588, June 2013.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><!-- start -->\r\n<div class=\"research-area\">\r\n<h2>Network Systems Laboratory<\/h2>\r\n<div class=\"box clfx\">\r\n<div class=\"photo\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2018\/04\/Network-Systems-Laboratory.jpg\" alt=\"\" width=\"483\" height=\"347\" class=\"alignnone size-full wp-image-119\" \/><\/div>\r\n<div class=\"text\">\r\n<div class=\"professor\">\r\n<p class=\"url\"><a target=\"_blank\" rel=\"noopener noreferrer\"><\/a>(URL:TBD)<\/p>\r\n<p>Yukinobu Fukushima (Associate Professor)<\/p>\r\n<\/div>\r\n<div class=\"thema\">\r\n<h3>Research Themes:<\/h3>\r\n<ul>\r\n\t<li>Highly Distributed Cloud Computing Environment<\/li>\r\n\t<li>Design of Virtual Networks<\/li>\r\n\t<li>Design of Optical Networks<\/li>\r\n\t<li>Knowledge-Defined Networking<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"publication\">\r\n<h3>Representative Publication :<\/h3>\r\n<ul>\r\n\t<li>Yukinobu Fukushima, Wenjie Chen and Tokumi Yokohira, \u201cA Trail Multi-Splitting Method for Throughput Improvement in Light Trail Networks,\u201d Photonic Network Communications, Vol. 30, pp. 178-189, May 2015.<\/li>\r\n\t<li>Yukinobu Fukushima, Tutomu Murase, Gen Motoyoshi, Tokumi Yokohira, and Tatsuya Suda, \u201cDetermining Server Locations in Server Migration Service to Minimize Monetary Penalty of Dynamic Server Migration,\u201d Journal of Network and Systems Management, 41 pages, 2018.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\n<!-- end --><\/div>","protected":false},"excerpt":{"rendered":"As of March 2018 Applied Superconductivity Engineering Laboratory (URL:http:\/\/www.ec.okayama-u.ac.jp\/~ase\/) Se...","protected":false},"author":1,"featured_media":0,"parent":1031,"menu_order":13,"comment_status":"closed","ping_status":"closed","template":"2column2.php","meta":[],"_links":{"self":[{"href":"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/68"}],"collection":[{"href":"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/comments?post=68"}],"version-history":[{"count":3,"href":"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/68\/revisions"}],"predecessor-version":[{"id":1573,"href":"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/68\/revisions\/1573"}],"up":[{"embeddable":true,"href":"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/1031"}],"wp:attachment":[{"href":"https:\/\/www.engr.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/media?parent=68"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}