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Researcher Information

last modified:2017/05/23

Professor FURUUCHI Masami

Mail Laboratory Website

Faculty, Affiliation

Faculty of Environmental Design, Institute of Science and Engineering

College and School Educational Field

Division of Environmental Engineering Design, Graduate School of Natural Science and Technology
Division of Environmental Science and Engineering, Graduate School of Natural Science and Technology
School of Environmental Design, College of Science and Engineering

Laboratory

Laboratory of Atmospheric Environment and Pollution Control Engineering TEL:076-234-4646 FAX:076-234-4644

Academic Background

【Academic background(Doctoral/Master's Degree)】
Toyohashi University of Technology Master Energy Engineering 198303 Completed
【Academic background(Bachelor's Degree)】
Toyohashi University of Technology Department of Energy Engineering 198103
【Degree】
Dr. Engineering
Master of Engineering

Career

Research Assistant, Faculty of Engineering, Toyohashi University of Technology Faculty of Eng., Toyohashi Univ. Tech.(1983/04/01-1989/11/30)
Assistant Professor, Faculty of Engineering, Toyohashi University of Technology Faculty of Eng., Toyohashi Univ. Tech.(1989/12/01-1992/06/30)
Assistant Professor, Faculty of Engineering, Kanazawa University Faculty of Eng., Kanazawa University(1992/07/01-1995/04/01)
Associate Professor, Faculty of Engineering, Kanazawa University Faculty of Eng., Kanazawa University(1995/04/01-2003/03/31)
Associate Professor, Graduate School of Natural Science and Technology, Kanazawa University(2003/04/01-2007/03/31)
Associate Professor, Graduate School of Natural Science and Technology, Kanazawa University(2007/04/01-)
Professor, Garduate School of Natural Science and Technology

Year & Month of Birth

1958/02

Academic Society



Award

○Excellent Paper Award(2004/10/21)
○Excellent Paper Award(2004/10/21)

Specialities

Environmental dynamic analysis

Speciality Keywords

Assesment of Atmospheric Environment.Air Pollution Control Technology. Air Cleaning Device.

Research Themes

Development of Low-cost Granular Bed fiter for Small Scale Biomass Combusting Furnaces

Evalutaion of Air Pollution in Angkor Monument Area in Cambodia and Construction of Monitoring Network

Evaluation of Environmental Pollution Caused by Rubber Sheet Production in Surthern Thailand and Environmental Protection Policy

Efficient Decomposition of Hazadous Compounds in Ambient Air Using Supersonic Flow of Nano TiO2 Aerosol Particles

Books

  •  Characterization and Modeling Filtration in a Granular Coke Bed Wiley-American Ceramic Society

Papers

  •  Shape Classification of Granular Particles by a Rotating Cylinder with Blades M. Nakagawa, M. Furuuchi, M. Yamahata, K. Gotoh POWDER TECHNOLOGY 44 2  195-202 1985/09
  •  Pore Size Distributions of Random Assemblies of Equal Spheres K. Gotoh, M. Nakagwa, M. Furuuchi, A. Yoshigi CHEMICAL PHYSICS 85 5  3078-3080 1986/09
  •  Optimal Performance of a Shape Classifier for Binary Mixtures of Granular Materials M. Furuuchi, M. Nakagawa, M. Suzuki, H. Tsuyumine, K. Gotoh POWDER TECHNOLOGY 50 2  137-145 1987/04
  •  Natural Convection of a Heat Generating Fluid Confined in Frozen Layer K. Mitachi, K. Aoki, K. Kitamura, M. Furuuchi Heat Transfer - Japanese Research  16 4 195-202 1987/07
  •  Determination of Particle Shape from Electrical Conductivity of Suspensions M. Furuuchi, A. Ikeuchi, T. Fukagawa, K. Gotoh JOURNAL OF CHEMICAL ENGINEERING OF JAPAN  21 5  528-533 1988/04

show all

  •  Continuous Shape Separation of Binary Mixture of Granular Particles M. Furuuchi, K. Gotoh POWDER TECHNOLOGY 54 1  31-37 1988/04
  •  Particle Shape and Residence Time of Granular Materials in a Rotating Tilted Cylinder M. Furuuchi, E.Ohno, K. Gotoh Advanced Powder Technology  1 2  101-113 1990/04
  •  Shape Characteristics of Granular Materials Precisely Classified by a Shape Separator M. Furuuchi, E.Ohno, K. Gotoh Advanced Powder Technology  1 2  89-100 1990/04
  •  Shape Separation of Particles M. Furuuchi, K. Gotoh POWDER TECHNOLOGY 73 1  1-9 1992/01
  •  Shape Separation of Particulates by a Rotating Horizontal Sieve Drum M. Furuuchi, C. Yamada, K. Gotoh POWDER TECHNOLOGY 75 2  113-118 1993/04
  •  Sediment Structure of Fine Silica Spheres in an Electrolyte Solution M. Furuuchi, S. Mori, K. Gotoh POWDER TECHNOLOGY 80 2  159-163 1994/06
  •  Evaporation Behavior of Volatile Particles on Fibrous Filter Flushed with Particle Free Dry Air M. Furuuchi, H. Fissan, J. Horodecki POWDER TECHNOLOGY 118 1-2  171-179 2001/04
  •  Observation of Dust Release Behavior from Ceramic Filter Elements M. Hata, M. Furuuchi, C. Kanaoka, R. Kurose, H. Makino Advanced Powder Technology  14 6  719-734 2003/12
  •  A Mechanistic Model for Mercury Capture with In-Situ Generated Titania Particles: Role of Water Vapor S. Rodriguez, C. Almquist, T. G. Lee, M. Furuuchi, E. Hedrick, P. Biswas Journal of the Air & Waste Management Association 54  149 - 156 2004/03
  •  Characterization and Modeling Filtration in a Granular Coke Bed M. Furuuchi, M. Hata, C. Kanaoka, R. Takahashi, J. Yagi, R. Takehama, Y. Kawaminami Ceramic Transactions 146  365-373 2004/04
  •  The Influence of Humidity on Dry Separation of Granular Particles Based on Geometrical Characteristics M. Furuuchi, K. Gotoh, C. Kanaoka POWDER TECHNOLOGY 155 2  125-133 2005/04
  •  Characteristics of Particulates Emitted from Rubber Wood Burning M. Furuuchi, P. Tekasakul, Y. Otani, S. Tekasakul, T. Sakano, Y. Bai, T. Murase J. Ecotechnology Research 12 1-2  135-139 2005/12
  •  Degradation of Semi-crystalline PPS Bag-filter Materials by NO and O2 at High Temperature W. Tanthapanichakoon, M. Furuuchi, K. Nitta, M. Hata, S. Endoh, Y. Otani Polymer Degradation and Stability  91 8  1637-1644 2006/01
  •  Degradation Characteristics of PAHs in Ambient Particulates for Soft X-ray Irradiation Y. Bai, M. Furuuchi, S. Panyametheekul, Y. Otani, W. Limpaseni, M. Hata, M. Aizawa J. Ecotechnology Research 12 1-2  126-129 2006/02
  •  Partition of Heavy and Alkali Metals During Sewage Sludge Incineration J. Han, M. Xu, H. Yao, M. Furuuchi, T. Sakano, P. Kanchanapiya, C. Kanaoka ENERGY & FUELS 20 2  583-590 2006/02
  •  Sampling and Characterization of PM-fractions of Ambient Particulate Matter in Bangkok, Utilizing a Cascade Virtual Impactor T. Prasserttachato, A. Pordgirski, J. Luckner, M. Furuuchi, L. Gradon, S. Suvachittanont, W. Szymanski  Aerosol and Air Quality Research  6 1  67-81 2006/02
  •  Temperature Distribution and Air Pollution in Phnom Penh, Cambodia - Influence of Land Use and the Mekong and Tonle Sap Rivers M. Furuuchi, T. Murase, M. Yamashita, H. Oyagi, K. Sakai, S. Tsukawaki, S. Sieng, M. Hata  Aerosol and Air Quality Research  6 2  134-149 2006/04
  •  Numerical Investigation of Flow and Dust Concentration distributions in Working Area of a Mountain Tunnel under Construction C. Kanaoka, M. Furuuchi, T. Myojo, J. Inaba, K. Ohmat  Aerosol and Air Quality Research  6 3  231-246 2006/04
  •  Characteristics of Slag, Fly ash and Deposited Particles during Melting of Dewatered Sewage Sludge in a Pilot Plant P.Kanchanapiya, T. Sakano, C. Kanaoka, T. Mikuni, Y. Ninomiya, L. Zhang, M. Masui, M. Furuuchi Journal of Environmental Management  79 2  163-172 2006/06
  •  Mechanical Degradation of Filter Polymer Materials: Polyphenylene Sulfide W. Tanthapanichakoon, M. Hata, K. Nitta, M. Furuuchi, Y. Otani Polymer Degradation and Stability  91 11  2614-2621 2006/06
  •  Application of Soft X-rays in the Decomposition of Poly-cyclic Aromatic Hydrocarbons (PAHs) in Smoke Particles from Biomass Fuel Burning Y. Bai, M. Furuuchi, P. Tekasakul, S. Tekasakul, T. Choosong, M. Aizawa, M. Hata, Y. Otani  Aerosol and Air Quality Research  7 1  67-78 2007/01
  •  Simulating the Transformation of Heavy Metals During Coal or Sewage Sludge Combustion J. Han, M.Xu, H. Yao, M. Furuuchi, T. Sakano, H. J. Kim Journal of Environmental Science and Health Part A 42 2  217-224 2007/01
  •  Characteristics of Ambient Particle-bound Poly-cyclic Aromatic Hydrocarbons in the Angkor Monument Area of Cambodia M. Furuuchi, T. Murase, S. Tsukawaki, P. Hang, S. Sieng, M. Hata Aerosol and Air Quality Research  7 2  221-238 2007/03
  •  Degradation of Bag-filter Non-woven Fabrics by Nitric Oxide at High Temperatures W. Tanthapanichakoon, M. Furuuchi, K. Nitta, M. Hata, Y. Otani Advanced Powder Technology  18 3  349-354 2007/06
  •  Inertial Classification of Nanoparticles with Fibrous Filters Y. Otani, K. Eryu, M. Furuuchi, N. Tajima, P. Tekasakul Aerosol and Air Quality Research  7 3  343-352 2007/08
  •  Working Environment in a Rubber Sheet Smoking Factory Polluted by Smoke from Biomass Fuel Burning and Health Influences to Workers T. Choosong, M. Furuuchi, P. Tekasakul, S. Tekasakul, J. Chomanee, T. Jinno, M. Hata, Y. Otani J. Ecotechnology Research 13 2  91-96 2007/08
  •  Development of a Personal Sampler for Evaluating Exposure to Ultrafine Particles M. Furuuchi, T. Choosong, M. Hata, Y. Otani, P. Tekasakul, M. Takizawa, M. Nagura Aerosol and Air Quality Research  in press 2009/09
  •  Workplace Environment and Personal Exposure of PM and PAHs to Workers in Natural Rubber Sheet Factories Contaminated by Wood Burning Smoke T. Choosong, J. Chomanee, P. Tekasakul, S. Tekasakul, Y. Otani, M. Hata, M. Furuuchi Aerosol and Air Quality Research  in press 2009/09
  •  Effect of Moisture Content and Burning Period on Concentration of Smoke Particles and Particle-bound Polycyclic Aromatic Hydrocarbons from Rubber-Wood Combustion J. Chomanee, P. Tekasakul, S. Tekasakul, M. Furuuchi, Y. Otani Aerosol and Air Quality Research  in press 2009/09
  •  Design of Inertial Filter for Classification of PM0.1 K. Eryu, T. Seto, Y. Mizukami, M. Nagura, M. Furuuchi, Y. Tajima, T. Kato, K. Ehara, Y. Otani 24 1  24-29 2009/04
  •  The Behavior of Phosphorus and Heavy Metals in Sewage Sludge Ashes J. Han, P. Kanchanapiya, T. Sakano, T. Mikuni, M. Furuuchi International Journal of Environment and Pollution  in press 2009/09
  •  Preliminary Investigation on Characteristics of Poly-cyclic Aromatic Hydrocarbons (PAHs) in Sediments in Sea of Japan 39  1-8 2008/02
  •  Characteristics of Aerosol Nano-particles Sampled at Road Tunnel and Roadside in Kanazawa Outer Ring 40  31-36 2009/03
  •  Status and Characteristics of Ambient Aerosol Nano-particles in Kakuma, Kanazawa and Comparison between Sampling Characteristics of Air Samplers for Aerosol Particle Separation 40  135-140 2009/03
  •  Evaluation of Multichannel Annular Denuders for a Newly Developped Ultrafine Particle Sampling System K. Sekiguchi, K. H. Kim, S. Kudo, K. Sakamoto, Y. Otani, T. Seto, M. Furuuchi, F. Yoshikawa, K. Ehara, M. Hirasawa, N. Tajima, T. Kato Aerosol and Air Quality Research  9 1  50-64 2009/02
  •  Characteristics of PAHs in Particulates in the Atmospheric Environment of Hat Yai City, Thailand, and Relationship with Rubber-wood Burning in Rubber Sheet Production P. Tekasakul, M. Furuuchi, S. Tekasakul, J. Chomanee, Y. Otani Aerosol and Air Quality Research  8 3  265-278 2008/06
  •  Influence of Calcium Chloride on the Thermal Behavior of Heavy and Alkali Metals in Sewage Sludge Incineration J. Han, M. Xu, H. Yao, M. Furuuchi, T. Sakano, H. J. Kim Waste Management  28 5  813-820 2008/12
  •  Emissions of particulate matter and associated polycyclic aromatic hydrocarbons from agricultural diesel engine fueled with degummed, deacidified mixed crude palm oil blends  Khamphe Phoungthong, Surajit Tekasakul, Perapong Tekasakul, Gumpon Prateepchaikul, Naret Jindapetch, Masami Furuuchi, Mitsuhiko Hata Journal of Environmental Sciences  25 4 751-757 2013/04
  •  Development of a Personal Sampler for Evaluating Exposure to Ultrafine Particles Aerosol and Air Quality Research 10 1 30-37 2010/02
  •  Development of PM0.1 Personal Sampler for the Evaluation of Personal Exposure to Aerosol Nanoparticles  Thunyapat Thongyen, Mitsuhiko Hata, Akira Toriba, Takuji Ikeda, Hiromi Koyama, Yoshio Otani, Masami Furuuchi Aerosol and Air Quality Research  2015/05
  •  Evaluation of Artifacts Generated during Collection of Ultrafine Particles Using an Inertial Filter Sampler  Hirotoshi Kuwabara, Kazuhiko Sekiguchi, Kenshi Sankoda, Kenji Sakurai, Ryosuke Yamaguchi, Masami Furuuchi, Mitsuhiko Hata Aerosol and Air Quality Research  in press in press in press 2016
  •  Studying the Influence of Operation Parameters on Heavy and Alkali Metals Partition from Flue Gases Jun Han, Xuanming He, Guanghui Wang, Masami Furuuchi, Mitsuhiko Hata WASTE MANAGEMENT & RESEARCH 28 2 158-164 2010/02
  •  Development of a High-volume Air Sampler for Nanoparticles Environmental Sciences: Processes and Impacts  15 454-462 2012/12
  •  Chemical characteristics of size-resolved aerosols in winter in Beijing Sun, Kang; Qu, Yu; Wu, Qiong; Han, Tingting; Gu, Jianwei; Zhao, Jingjing; Sun, Yele; Jiang, Qi; Gao, Ziqi; Hu, Min; Zhang, Yuanhang; Lu, Keding; Nordmann, Stephan; Cheng, Yafang; Hou, Li; Ge, Hui; Furuuchi, Masami; Hata, Mitsuhiko; Liu, Xingang Journal of Environmental Sciences 26 8 1641-1650 2014/08/01 
  •  The emission characteristics of PAHs during coal and sewage sludge co-combustion in a drop tube furnace  Aerosol and Air Quality Research 13 6 192- 2013/08
  •  Development and Performance Evaluation of Air Sampler with Inertial Filter for Nanopartilce Sampling Aerosol and Air Quality Research 10 2 185-192 2010/02
  •  Workplace Environment and Personal Exposure of PM and PAHs to Workers in Natural Rubber Sheet Factories Contaminated by Wood Burning Smoke Aerosol and Air Quality 10 1 8-21 2010/02
  •  Performance Test of an Inertial Fibrous Filter for Ultrafine Particle Collection and the Possible Sulfate Loss when Using an Aluminum Substrate with Ultrasonic Extraction of Ionic Compounds Aerosol and Air Quality Research 10 6 616-624 2010/06
  •  Characteristics of the Nanoparticles in a Road Tunnel Aerosol and Air Quality Research 13 1 194-200 2013/01
  •  Effect of Cooling Rate on the Partition of Heavy and Alkali Metals During Waste Incineration Asia-Pacific Journal of Chemical Engineering 7 S2 S229-S236 2012/07
  •  Characteristics of Nanoparticles Emitted From Burning of Biomass Fuels Journal of Environmental Sciences 25 3 60057 2013/03
  •  Performance Evaluation of an Andersen Cascade Impactor with an Additional Stage for Nanoparticle Sampling Aerosol and Air Quality Research 12 6 1041-1048 2012/12
  •  Effects of Filter Packing Density and Particle Deposit on Classification Performance of Inertial Filter for Sampling of PM0.1 Eryu, Kazunobu;Seto, Takafumi;Furuuchi, Masami;Otani, Yoshio;Tajima, Naoko;Kato, Takaharu JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 44 9 609-615 2011
  •  Seasonal variation of carbonaceous and ionic components in ultrafine and fine particles in an urban area of Japan Kim, Kyung Hwan;Sekiguchi, Kazuhiko;Furuuchi, Masami;Sakamoto, Kazuhiko ATMOSPHERIC ENVIRONMENT 45 8 1581-1590 2011
  •  Comparison of particulate matter and polycyclic aromatic hydrocarbons in emissions from IDI-turbo diesel engine fueled by palm oil–diesel blends during long-term usage  Khamphe Phoungthong, Surajit Tekasakul, Perapong Tekasakul, Masami Furuuchi  Atmospheric Pollution Research  in press 2016/10
  •  Influence of agricultural activities, forest fires and agro-industries on air quality in Thailand  Worradorn Phairuang, Mitsuhiko Hata, Masami Furuuchi  J. Environmental Science in press in press in press 2017/02
  •  Size Specific Distribution Analysis of Perfluoroalkyl Substances in Atmospheric Particulate Matter – Development of a Sampling Method and their Concentration in Meeting Room/Ambient Atmosphere  Hui Ge, Eriko Yamazaki, Nobuyoshi Yamashita, Sachi Taniyasu, Tong Zhang, Mitsuhiko Hata, Masami Furuuchi  Aerosol and Air Quality Research  in press 2016/09
  •  Development of a Sharp-Cut Inertial Filter Combined with an Impactor Tong Zhang, Hideaki Takahashi, Mitsuhiko Hata, Akira Toriba, Takuji Ikeda, Yoshio Otani, Masami Furuuchi Aeorosol and Air Quality Research  in press 2016/09
  •  Size Distribution of Dechloranes in Particulate Matter J. Environmental Chemistry 2016/08
  •  Size Distribution of Chlorinated Polycyclic Aromatic Hydrocarbons in Atmospheric Particles  Kensaku Kakimoto, Haruna Nagayoshi, Yoshimasa Konishi, Keiji Kajimura, Takeshi Ohura, Takeshi Nakano, Mitsuhiko Hata, Masami Furuuchi, Ning Tang, Kazuichi Hayakawa, Akira Toriba Archives of Environmental Contamination and Toxicology  in press in press in press 2016/11
  •  High volume air sampler for environmental aerosol nanoparticles using a sharp-cut inertial filter combined with an impactor Zhang, Tong, Zhao, Tianren, Takahashi, Hideki, Hata, Mitsuhiko; Toriba, Akira, Ikeda, Takuji, Otani, Yoshio, Furuuchi, Masami Measruement Science and Technology in press 2016/12
  •  Particle Size Specific Distribution of Perfluoro Alkyl Substances in Atmospheric Particulate Matter in Asian Cities H. Ge, E. Yamazaki, N. Yamashita, S. Taniyasu, A. Ogata, M. Furuuchia* Environmental Science: Processes and Impacts in press 2017/02
  •  Polycyclic aromatic hydrocarbons and their nitro-derivatives from indoor biomass fueled cooking in two rural areas of Thailand: a case study Walaiporn Orakij, Thaneeya Chetiyanukornkul, Chieko Kasahara, Yaowatat Boongla, Thanyarat Chuesaard, Masami Furuuchi, Mitsuhiko Hata, Ning Tang, Kazuichi Hayakawa, Akira Toriba  Air Quality Atmosphere & Health in press 2017/02

Conference Presentations

  • Basic investigation on odor behavior in aerosol(2016/08/29)
  • Characteristics comparison of ambient Nano-particles in Asian cities(2016/08/29)
  • Effect of agriculture and forest fire on carbon components in size-classified ambient particles in Thailand(2016/08/29)
  • Effect of Traffic and Construction on Air Quality of Phnom Penh City, Cambodia(2016/08/29)
  • Development of analysis method of Perfluoro Alkyl Substances in atmospheric(2016/08/29)

show all

  • Development of layered mesh inertial filter combined with an impactor(2016/08/29)
  • Development and application to air monitoring of high volume PM0.1 sampler with multi-nozzle inertial filter(conference:2016 JAAST Meeting)(2016/08/29)
  • Investigation of ambient nano-particles in Hokuriku region by annual monitoring(conference:2016 JAAST Meeting)(2016/08/29)

Arts and Fieldwork

Patent

Theme to the desired joint research

○Separation Technology of Nanoparticles

Grant-in-Aid for Scientific Research

○「静電分級法を利用するナノサイズ大気エアロゾル粒子の’あるがまま’質量分析法の開発」(1998-) 
○「静電分級法を利用するナノサイズ大気エアロゾル粒子の‘あるがまま’質量分析法の開発」(1999-) 
○「廃棄物熱処理プロセス排ガス中での重金属類の挙動解析とその成分分離法の検討」(2002-) 
○「ナノ・エアロゾル粒子の高速分級・濃縮技術の開発」(2003-) 
○「超音速流れ場中の液滴凝縮を利用したナノ大気エアロゾルとガス成分の同時測定」(2003-) 
○「環境共生のための土地利用計画支援システムの開発と適用に関する研究」(2004-) 
○「超音速流れ場を用いた廃棄物熱処理排ガス中微小重金属類のin situ測定法の検討」(2005-) 
○「東南アジア地域の天然ゴムプランテーションで発生する大気汚染物質の特性と影響評価」(2005-) 
○「ナノ光触媒エアロゾルの超音速流れを利用した有害ガス状物質の高効率分解」(2006-) 
○「カンボジアのアンコール遺跡区域における環境破壊・汚染の現状と影響評価」(2007-) 
○「マクロ分子イオンを用いたナノ粒子フィルタ捕集性能試験法の開発」(2011-2013) 
○「東南アジアの農業・アグロインダストリ起源の環境負荷評価と共通対策プロトコルの検討」(2013-2015) 
○「小流量・小型軽量ナノ粒子リスクリアルタイムモニタリング技術の開発」(2011-2012) 

Classes (Bachelors)

○Computer Literacy in Civil Engineering A(2017)
○International Training B(2017)
○International Training B(2017)
○International Training B(2017)
○International Training B(2017)
○Introduction to Engineering(2017)
○Fundamentals of Environmental Engineering(2017)
○Graduation thesis Or Design(2017)
○Practice of Environmental Design(2017)
○International Training A(2017)
○International Training A(2017)
○Atmospheric Environmental Engineering(2017)
○International Training A(2017)
○Introduction of Environmental Engineering(2017)
○International Training A(2017)
○Computer Literacy in Civil Engineering B(2017)
○Experiment in Environment and Disaster Prevention Engineering(2017)
○Environmental Engineering of Architecture(2017)
○Lecture on Life in Campus and Society(2016)
○Computer Literacy in Civil Engineering B(2016)
○International Training B(2016)
○International Training B(2016)
○International Training A(2016)
○International Training B(2016)
○Computer Literacy in Civil Engineering A(2016)
○International Training A(2016)
○International Training B(2016)
○International Training A(2016)
○International Training A(2016)

Classes (Graduate Schools)

○Air Pollution Control Engineering(2017)
○Environmental Aerosol Engineering(2017)
○Environmental Aerosol Engineering(2017)
○Environmental Aerosol Engineering(2017)
○Environmental Aerosol Engineering(2017)
○Exercise on Regional and Global Environment(2017)
○Introduction to Environmental Engineering A(2017)
○Theme Project(2017)
○Theme Project(2017)
○Introduction to Environmental Engineering B(2017)
○Theme Project(2016)
○Theme Project(2016)

International Project

International Students

Lecture themes

Others (Social Activities)

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