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Yamashita Yuji

face
Affiliation
Faculty of Life and Environmental Sciences
Official title
Assistant Professor
Sex
Male
Birth date
1980-08
KAKEN ID
30543227
Email
 
Office
生農C202,生農E204
Phone
029-853-6638
Research fields
Rural environmental engineering/Planning
Research keywords
Transport Phenomena
Soil
Natural Organic Matter
Humic Substances
Clay Minerals
Environmental Colloids
Research projects
ナノ材料の地盤内移動特性解明と移動モデル構築2018-04 -- 2021-03濱本 昌一郎Japan Society of for the Promotion of Science/科学研究費助成事業(科学研究費補助金)基盤研究(B)17,550,000Yen
Understanding of soil physics phenomena of imogolite-humic substances complex in standpoint of colloid and interface science2017-04 -- 2021-03Yuji YamashitaJapan Society of for the Promotion of Science/Grant-in-Aid for Young Research (B)4,290,000Yen
フロッキュレーション解析に基づく環境界面工学の展開2016-05 -- 2021-03Yasuhisa AdachiJapan Society of for the Promotion of Science/Grant-in-Aid for Scientific Research (S)132,600,000Yen
Why do humic substances hinder the efficiency of water treatment process?2015-04 -- 2017-03Yuji YamashitaJapan Society for the Promotion of Science/Grant-in-Aid for Challenging Exploratory Research3,900,000Yen
Influence of humic substances on interfacial phenomena in water treatment processes2014-10 -- 2015-09Yuji YamashitaKurita Water and Environment Foundation/KWEF Research Grant Program 20141,200,000Yen
鹿沼土およびガラスビーズを用いたコロイド促進型の汚染物質輸送挙動に関する研究2007-04 -- 2009-03Yamashita Y.Japan Society of for the Promotion of Science/特別研究員奨励費1,800,000Yen
Career history
2013-09 -- (current)University of Tsukuba Faculty of Life and Environmental Sciences Assistant Professor
2012-04 -- 2013-09Japan Atomic Energy Agency Research Group for Green Chemistry Postdoctoral Fellow
2010-12 -- 2011-02Yale University Department of Chemical and Environmental Engineering Visiting Research Scholar
2009-01 -- 2012-03University of Tokyo Department of Nuclear Engineering and Management, School of Engineering Research Fellow
2008-04 -- 2009-01Japan Society for the Promotion of Sceience University of Tsukuba Research Fellowship for Young Scientist (PD)
2007-04 -- 2008-03Japan Sociery for the Promotion of Science University of Tsukuba Research Fellowship for Young Scientist (DC2)
Academic background
2005-04 -- 2008-03University of Tsukuba Graduate school of Life and Environmental Sciences Biosphere Resource Science and Technology ProgramCompleted
2003-04 -- 2005-03University of Tsukuba Master’s Program in Environmental Sciences 環境科学専攻Completed
1999-04 -- 2003-03University of Tsukuba 第二学群 College of Agro-Biological Resource SciencesGraduated
Degree
2008-03Ph. D.University of Tsukuba
Licenses and qualifications
2013-10Assistant Surveyor
Academic societies
2003 -- (current)The Japanese Society of Irrigation, Drainage and Rural Engineering
2007 -- (current)Japanese Humic Substances Society
2009 -- (current)Atomic Energy Society of Japan
2013 -- (current)Japanese Society of Soil Physics
2014 -- (current)International Humic Substances Society
2014 -- (current)JAPAN SOCIETY ON WATER ENVIRONMENT
2018-08 -- (current)Chemical Society of Japan
Honors & Awards
2017-03Poster AwardAnalysis of surface free energy of imogolite-humic acids complex and mechanism of enhancement of its hydrophobicity
2013-03日本原子力学会第9回社会・環境部会賞優秀論文賞原著論文「放射性廃棄物処分事業における科学アカデミーの役割—日米アカデミーの比較から得られる示唆」
2010-056th International Conference Interfaces Against Pollution Award
2008-065th International Conference Interfaces Against Pollution Award
Articles
Books
  • ガラスビーズおよび鹿沼土充填カラムを通過するモデルコロイド粒子とフミン酸の輸送に関する研究
    山下祐司
    2008-01
Conference, etc.
  • Influence of humic acid on the flocculation of colloidal particles by cationic flocculant
    Huey Lim Voon; Adachi Yasuhisa; Yuji Yamashita
    化学工学会第84年会/2019-3-13--2019-3-15
  • Effect of concentration ratio of Polyacrylic Acid and Cationic Flocculant on the Flocculation of Negatively Charged Polystyrene Latex
    Voon Huey Lim; Yen Thi Hai DOAN; Yuji Yamashita; Yasuhisa...
    2018 Division of Colloid and Surface Chemistry, CSJ/2018-09-18--2018-09-20
  • Inhibition of polycation-induced colloid flocculation by polyacrylic acid: Effects of concentration ratio and ionic strength
    Voon Huey Lim; 山下祐司; Doan Yen Thi Hai; 足立泰久
    日本腐植物質学会第34回講演会/2018-11-23--2018-11-24
  • Flocculation and sedimentation of imogolite-humic acids complex
    野宮高由; 山下祐司; 足立泰久
    日本腐植物質学会第34回講演会/2018-11-23--2018-11-24
  • Effect of coexistence of anionic polymer on the Brownian aggregation of colloidal particles by using cationic polyelectrolyte
    田中 脩磨; 山下 祐司; 足立 泰久
    2018 Division of Colloid and Surface Chemistry, CSJ/2018-09-18--2018-09-20
  • Flocculation and dispersion of imogolite-humic acids complex
    野宮 高由; 山下 祐司; 足立 泰久
    Annual Meeting of the Japanese Society of Irrigation, Drainage and Rural Engineering in 2018/2018-09-04--2018-09-06
  • Influences of Polyacrylic Acid on the Flocculation of Negatively Charged Polystyrene Latex with Cationic Polyelectrolytes
    Huey Lim Voon; Hai Doan Yen Thi; Yuji Yamashita; Adachi Y...
    化学工学会第83年会/2018-3-13--2018-3-15
  • Adsorption behavior of humic acids onto imogolite and wettability of the adsorption complex membrane
    山下祐司; 梅本陽平; 足立泰久
    2017年度土壌物理学会大会/2017-10-14--2017-10-14
  • Contact angle of water droplet onto imogolite-humic acids complex membrane: effects of adsorption mass of humic acids and pH
    山下 祐司; 梅本 陽平; 足立 泰久
    Annual Meeting of the Japanese Society of Irrigation, Drainage and Rural Engineering in 2016/2017-08-29--2017-08-31
  • Dispatch of experts to "The Decontamination Information Plaza" and response to environmental reclamation
    佐藤修彰; 山下祐司
    日本原子力学会2015年秋の大会/2015-09-09--2015-09-11
  • Effect of anionic polymer on colloidal coagulation induced by cationic organic coagulants
    田中 脩磨; 山下 祐司; 足立 泰久
    The 51st annual conference of Japan society on water environment 2017/2017-03-15--2017-03-17
  • Analysis of surface free energy of imogolite−humic acids complex and mechanism of enhancement of its hydrophobicity
    梅本陽平; 山下祐司; 足立泰久
    日本腐植物質学会第32回講演会/2017-03-14--2017-03-14
  • Surface charge property of synthetic imogolite–humic acids complex and wettability of the thin layer
    Umemoto Yohei; Adachi Yasuhisa; Yamashita Yuji
    18th international conference of international humic substances society/2016-09-12--2016-09-16
  • Transport behavior of humic acids in porous media—effects of pH, electrolyte concentration and cation valency
    Yamashita Yuji; Adachi Yasuhisa
    18th international conference of international humic substances society/2016-09-12--2016-09-16
  • Effect of humic acids on surface charge property of synthetic imogolite
    梅本 陽平; 足立 泰久; 山下 祐司
    Annual Meeting of the Japanese Society of Irrigation, Drainage and Rural Engineering in 2016/2016-08-30--2016-09-01
  • Effect of pH on the transport of humic acids with different concentration of sodium or calcium ion in porous media
    山下祐司; 足立泰久
    2015年度土壌物理学会大会/2015-10-23--2015-10-24
  • Transport behavior of humic acids through porous media with different pH in the presence of calcium ions
    山下祐司; 足立泰久
    日本腐植物質学会第31回講演会/2015-11-19--2015-11-20
  • Contact angle and surface roughness of the imogolite membrane fabricated with different concentration of humic acid
    山下 祐司; 熊谷光洋; 足立 泰久
    Annual Meeting of the Japanese Society of Irrigation, Drainage and Rural Engineering in 2015/2015-09-01--2015-09-03
  • Differences in the adsorbed layer formed on the colloidal surface and in the electrophoresis by the effects of an order of the anionic and of the cationic polyelectrolytes addition
    Chai Jongmin; 山下 祐司; 足立 泰久
    The 49th Annual Conference of Japan Society on Water Environment/2015-03-16--2015-03-18
  • Effect of anionic polyelectrolytes on cationic polyelectrolyte layer formed on the surface of colloidal particles
    山下 祐司; Chai Jongmin; 足立 泰久
    日本腐植物質学会第30回講演会/2014-11-22--2014-11-23
  • Colloidal properties of humic substances
    Yamashita Yuji
    Tsukuba Global Science Weak 2014/2014-09-28--2014-09-30
  • Sequential adsorption of cationic/anionic polyelectrolytes on colloidal particles: Temporal changes of adsorption layer thickness and electrokinetic property of particles
    山下 祐司; Chai Jongmin; 足立 泰久
    平成26年度農業農村工学会大会講演会/2014-08-26--2014-08-28
  • Size distribution of humic substances evaluated with flow field-flow fractionation and its size-dependent cation binding
    Yamashita Yuji; Takumi Saito
    The 17th meeting of the International Humic Substances Society/2014-09-01--2014-09-05
  • Colloidal and Interfacial Phenomena of Humic Substances in Soil Physics
    山下祐司
    日本腐植物質学会第29回講演会/2013-11-21--2013-11-22
  • Effluent pattern and size distribution of colloidal particles through the column packed with organic horizon
    山下祐司
    2013年度土壌物理学会大会/2013-10-26--2013-10-27
Teaching
2019-10 -- 2020-02Seminar in Farmland System Engineering IUniversity of Tsukuba.
2019-04 -- 2019-08Seminar in Farmland System Engineering IUniversity of Tsukuba.
2019-10 -- 2019-12Biological resources and the EnvironmentUniversity of Tsukuba.
2019-10 -- 2020-02Dissertation in Environmental Colloid and Interface Engineering IIUniversity of Tsukuba.
2019-04 -- 2019-08Dissertation in Environmental Colloid and Interface Engineering IIUniversity of Tsukuba.
2019-10 -- 2020-02Advanced Farmland System EngineeringUniversity of Tsukuba.
2019-04 -- 2019-08Advanced Farmland System EngineeringUniversity of Tsukuba.
2019-10 -- 2019-12Experiments in Environmental Engineering IIUniversity of Tsukuba.
2019-04 -- 2019-07Experiments in Environmental Engineerieng IUniversity of Tsukuba.
2019-04 -- 2019-07Techno-methodology of Environmental Management in Rural AreasUniversity of Tsukuba.
Other educational activities
2019-01 -- 2019-01國立臺灣大學碩士學位考試委員会國立臺灣大學
Professional activities
2019-04 -- (current)Japanese Society of Soil Physics事務局長
2018-03 -- 2018-09第69回コロイドおよび界面化学討論会実行委員会
2018-01 -- (current)Japanese Humic Substances Society会計監査
2017-05 -- 2017-09日本機械学会 第16回「環境修復・放射性廃棄物管理国際会議」(ICEM2019)ICEM技術委員会委員
2016-07 -- (current)Atomic Energy Society of Japan企画委員会/委員
2011-05 -- (current)Atomic Energy Society of Japan福島特別プロジェクトクリーンアップ分科会 幹事
2008-01 -- 2008-06The 5th International Conference “Interfaces against Pollution”実行委員会
University Management
2019-04 -- (current)生命環境系環境安全管理委員会廃棄物管理補助責任者
2019-04 -- (current)生物資源学類委員環境工学関連運営委員
2019-04 -- (current)生物資源学類委員スポーツデー運営委員
2019-04 -- (current)生物資源学類委員オリエンテーション委員
2019-04 -- (current)生物資源学類委員1年次クラス担任教員
2019-01 -- 2019-02平成31年度生命環境科学研究科(前期課程:生物資源科学専攻、後期課程:農学関連3専攻)2月期入試監督員
2018-08 -- 2018-08平成31年度生命環境科学研究科(前期課程:生物資源科学専攻、後期課程:農学関連4専攻)7月期推薦・8月期入試監督員
2018-08 -- 2018-08平成30年度生命環境科学研究科(前期課程:生物資源科学専攻、後期課程:農学関連4専攻)7月期推薦・8月期入試口述試験委員・選考委員
2018-06 -- 2018-07平成30年度生物資源学類編入学試験学力検査委員
2018-01 -- 2018-02平成30年度生命環境科学研究科(前期課程:生物資源科学専攻、後期課程:農学関連3専攻)2月期入試監督員

(Last updated: 2019-06-20)