Yamashita Yuji 山下祐司

… Alternative Names

YAMASHITA Yuji 山下祐司

山下祐司ヤマシタユウジ

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Researcher Number	30543227
Other IDs
Affiliation (Current)	2025: 筑波大学, 生命環境系, 助教
Affiliation (based on the past Project Information) *help	2015 – 2024: 筑波大学, 生命環境系, 助教 2010 – 2011: 東京大学, 大学院・工学系研究科, 助教 2008: The University of Tokyo, 大学院・工学系研究科, 特任助教 2007: University of Tsukuba, 大学院・生命環境科学研究科, 特別研究員(DC2)
Review Section/Research Field	Principal Investigator Irrigation, drainage and rural engineering/Rural planning / Rural environmental engineering/Planning / Modeling and technologies for environmental conservation and remediation Except Principal Investigator Medium-sized Section 41:Agricultural economics and rural sociology, agricultural engineering, and related fields / Basic Section 22030:Geotechnical engineering-related / Rural environmental engineering/Planning / Nuclear engineering
Keywords	Principal Investigator 腐植物質 / コロイド / 凝集 / コロイド促進型輸送 / カラム実験 / フミン酸 / 地盤工学 / ナノ材料 / 表面・界面物性 / 土壌学 … More / 農業工学 / 接触角 / 濡れ / 吸着 / 土壌の濡れ性 / 沈降 / コロイド安定性 / 火山灰土壌 / 濡れ性 / 凝集分散 / 粘土腐植複合体 / イモゴライト / 土壌物理 / 電気泳動移動度 / ブラウン運動 / 水環境 / カチオン性高分子凝集剤 / 凝集効率 / 水処理 … More Except Principal Investigator フロック / 移動機構 / 汚染物質 / 移動特性 / 土壌 / 物質輸送 / 多孔質体 / コロイド粒子 / ナノバブル / ナノ材料 / 生物資源 / 凝集 / 不均一コロイド / 干渉沈降 / モンモリロナイト / 乱流 / 微生物 / 沈降 / コロイド / 水環境 / 微生物コロイド / ヘテロ凝集 / 界面動電現象 / 沈降乱流 / 凝集速度 / 高分子電解質 / モンテカルロシミュレーション / Cs-135放出率 / Taguchi法 / 不確実性解析 / Cs放出率 / 核種移行 / 放射性廃棄物処分 / 確率論的性能評価 Less

コロイド凝集の解析に基づく土壌・水環境の工学的新展開
- Principal Investigator
  
  足立泰久
- Project Period (FY)
  2022 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 41:Agricultural economics and rural sociology, agricultural engineering, and related fields
- Research Institution
  University of Tsukuba
Understandings and model developments of transport characteristics of nano-materials in soils
- Principal Investigator
  
  hamamoto shoichiro
- Project Period (FY)
  2018 – 2020
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 22030:Geotechnical engineering-related
- Research Institution
  The University of Tokyo
Understanding of soil physics phenomena of Imogolite-humic substances complex from a standpoint of colloid and interface sciencePrincipal Investigator
- Principal Investigator
  
  Yamashita Yuji
- Project Period (FY)
  2017 – 2021
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Rural environmental engineering/Planning
- Research Institution
  University of Tsukuba
Environmental Interface Engineering Based on Dynamic Analysis of Colloidal Flocculation
- Principal Investigator
  
  ADACHI Yasuhisa
- Project Period (FY)
  2016 – 2020
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Research Field
  
  Rural environmental engineering/Planning
- Research Institution
  University of Tsukuba
Why do humic substances inhibit the efficiency of water treatment process?Principal Investigator
- Principal Investigator
  
  YAMASHITA Yuji
- Project Period (FY)
  2015 – 2016
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Modeling and technologies for environmental conservation and remediation
- Research Institution
  University of Tsukuba
連続時間確率過程を考慮したコロイド共存系での核種移行不確実性解析手法の構築
- Principal Investigator
  
  長崎晋也
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Nuclear engineering
- Research Institution
  The University of Tokyo
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Principal Investigator
- Principal Investigator
  
  山下祐司
- Project Period (FY)
  2007 – 2008
- Research Category
  
  Grant-in-Aid for JSPS Fellows
- Research Field
  
  Irrigation, drainage and rural engineering/Rural planning
- Research Institution
  The University of Tokyo
  University of Tsukuba

All 2023 2022 2021 2020 2019 2018 2017 2016 2008 2007

All Journal Article Presentation

[Journal Article] Characteristics of Salt Leaching in Saline Soil with a Subsurface Hardpan: A Study Using Undisturbed Soil Core Samples2020
- Author(s)
  Omori Keisuke, Kobayashi Motoyoshi, Yamashita Yuji, Adachi Yasuhisa
- Journal Title
  
  JIRCAS Working Report No.88 Development of subsurface drainage and water saving irrigation technology for mitigation of soil salinization in Uzbekistan
  
  Volume: 88 Pages: 91-109
- NAID
  130007783871
- Open Access
- Data Source
  KAKENHI-PROJECT-16H06382
[Journal Article] Strength of Humic Acid Aggregates: Effects of Divalent Cations and Solution pH2020
- Author(s)
  Shigeki Wada, Yuko Omori, Saki Yamashita, Yasuhito Hayashi, Takeo Hama, Yasuhisa Adachi
- Journal Title
  
  Journal of Oceanography
  
  Volume: 印刷中 Issue: 4 Pages: 317-326
- DOI
  10.1007/s10872-019-00538-1
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06382, KAKENHI-PROJECT-17K20040
[Journal Article] Adsorption of Poly(acrylic acid) onto Negatively Charged Polystyrene Sulfate Latex Particles by Means of Particle Tracking of Brownian Motion, Electrophoretic Mobility and Fourier Transform Infrared Spectroscopy2020
- Author(s)
  Thi Hai Yen Doan、Pham Tien Duc、Yamashita Yuji、Adachi Yasuhisa
- Journal Title
  
  Polymer Science, Series A
  
  Volume: 62 Issue: 4 Pages: 321-329
- DOI
  10.1134/s0965545x20040045
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06382
[Journal Article] 硬盤層を有する塩類土壌の溶脱特性－不攪乱土壌コアサンプルを用いた研究－2019
- Author(s)
  大森圭祐, 小林幹佳, 山下祐司, 足立泰久
- Journal Title
  
  日本砂丘学会誌
  
  Volume: 66(1) Pages: 9-20
- NAID
  130007783871
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06382
[Journal Article] Adsorption Characteristics of Humic Acids on Imogolite and Contact Angle of Water on Imogolite-Humic Acids Complex Membrane2018
- Author(s)
  山下祐司、梅本陽平、足立泰久
- Journal Title
  
  Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering
  
  Volume: 86 Issue: 2 Pages: I_291-I_296
- DOI
  10.11408/jsidre.86.I_291
- NAID
  130007527743
- ISSN
  1882-2789, 1884-7242
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K15343, KAKENHI-PROJECT-16H06382
[Journal Article] Inhibition of Cationic Polymer-Induced Colloid Flocculation by Polyacrylic Acid2018
- Author(s)
  Voon Huey Lim, Yuji Yamashita, Yen Thi Hai Doan and Yasuhisa Adachi
- Journal Title
  
  Water
  
  Volume: 10（9） Issue: 9 Pages: 1215-1227
- DOI
  10.3390/w10091215
- NAID
  120007128462
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06382
[Presentation] 分枝度の異なるカオチン性高分子凝集剤を用いたコロイド凝集に対する腐植物質の影響2023
- Author(s)
  山下　祐司
- Organizer
  日本腐植物質学会第39回講演会
- Data Source
  KAKENHI-PROJECT-22H00387
[Presentation] カオチン性鎖状高分子凝集剤と腐植物質のポリイオンコンプレックス形成2022
- Author(s)
  山下　祐司
- Organizer
  日本腐植物質学会第38回講演会
- Data Source
  KAKENHI-PROJECT-22H00387
[Presentation] Coagulation and sedimentation of imogolite: effect of pH and salt concentration2021
- Author(s)
  Yuji Yamashita, Yasuhisa Adachi
- Organizer
  The 11th Interfaces Against Pollution
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K15343
[Presentation] イモゴライト-フミン酸複合体の凝集沈降2020
- Author(s)
  野宮高由、山下祐司、足立泰久
- Organizer
  第54回日本水環境学会年会
- Data Source
  KAKENHI-PROJECT-17K15343
[Presentation] イモゴライト-フミン酸複合体の凝集沈降2020
- Author(s)
  野宮高由、山下祐司、足立泰久
- Organizer
  第54回日本水環境学会年会
- Data Source
  KAKENHI-PROJECT-16H06382
[Presentation] Flocculation behaviour of colloidal particles induced by different cationic flocculant structure in the presence of polyanion2020
- Author(s)
  Lim Voon Huey, Yuji Yamashita, Yasuhisa Adachi
- Organizer
  化学工学会第85年会
- Data Source
  KAKENHI-PROJECT-16H06382
[Presentation] イモゴライトの凝集性に及ぼすNa濃度及びpHの影響2019
- Author(s)
  野宮高由、山下祐司、足立泰久
- Organizer
  2019年度土壌物理学会土壌物理学会大会
- Data Source
  KAKENHI-PROJECT-17K15343
[Presentation] Comparison of the inhibitory effect of initial stage flocculation between humic substances and polyacrylic acid2019
- Author(s)
  Lim Voon Huey, Yasuhisa Adachi, Yuji Yamashita
- Organizer
  OKINAWA COLLOIDS 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06382
[Presentation] Effect of Humic Substances on Initial Stage Progress of Polycation-induced Colloidal Flocculation2019
- Author(s)
  Lim Voon Huey, Yuji Yamashita, Yasuhisa Adachi
- Organizer
  日本腐植物質学会35回講演会
- Data Source
  KAKENHI-PROJECT-16H06382
[Presentation] Temporal change of adsorbed layer thickness and electrophoresis of PSL particles after overshooting with oppositely charged polyelectrolytes of different charge densities2019
- Author(s)
  Doan Yen Thi Hai, Yasuhisa Adachi, Yuji Yamashita
- Organizer
  OKINAWA COLLOIDS 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06382
[Presentation] イモゴライト－フミン酸複合体の凝集と分散2018
- Author(s)
  野宮高由，山下祐司，足立泰久
- Organizer
  平成30年度農業農村工学会大会講演会
- Data Source
  KAKENHI-PROJECT-16H06382
[Presentation] Effect of concentration ratio of Polyacrylic Acid and Cationic Flocculant on the Flocculation of Negatively Charged Polystyrene Latex2018
- Author(s)
  Voon Huey LIM, Yen Thi Hai DOAN, Yuji YAMASHITA, Yasuhisa ADACHI
- Organizer
  第69回コロイドおよび界面化学討論会
- Data Source
  KAKENHI-PROJECT-16H06382
[Presentation] アニオン性高分子の共存がカチオン性高分子凝集剤によるブラウン凝集速度に及ぼす影響2018
- Author(s)
  田中脩磨, 山下祐司, 足立泰久
- Organizer
  第69回コロイドおよび界面化学討論会
- Data Source
  KAKENHI-PROJECT-16H06382
[Presentation] Influences of Polyacrylic Acid on the Flocculation of Negatively Charged Polystyrene Latex with Cationic Polyelectrolytes2018
- Author(s)
  Lim Voon Huey，Doan Yen Thi Hai，Yamashita Yuji，Adachi Yasuhisa
- Organizer
  化学工学会第83年会
- Data Source
  KAKENHI-PROJECT-16H06382
[Presentation] イモゴライト－フミン酸複合体の凝集と分散2018
- Author(s)
  野宮高由、山下祐司、足立泰久
- Organizer
  平成30年度農業農村工学会大会講演会
- Data Source
  KAKENHI-PROJECT-17K15343
[Presentation] イモゴライト－フミン酸複合体の凝集沈降2018
- Author(s)
  野宮高由、山下祐司、足立泰久
- Organizer
  日本腐植物質学会第34回講演会
- Data Source
  KAKENHI-PROJECT-17K15343
[Presentation] イモゴライトーフミン酸複合体膜に対する水の接触角のフミン酸吸着量およびpH依存性2017
- Author(s)
  山下祐司，梅本陽平，足立泰久
- Organizer
  平成29年度農業農村工学会大会講演会
- Data Source
  KAKENHI-PROJECT-16H06382
[Presentation] イモゴライトに対するフミン酸の吸着および吸着複合体膜に対する水の接触角2017
- Author(s)
  山下祐司，梅本陽平，足立泰久
- Organizer
  2017年度土壌物理学会大会
- Data Source
  KAKENHI-PROJECT-17K15343
[Presentation] イモゴライトーフミン酸複合体の表面自由エネルギーの解析および疎水性発見のメカニズム2017
- Author(s)
  梅本陽平、山下裕司、足立泰久
- Organizer
  日本腐植物質学会第３２回講演会
- Place of Presentation
  名城大学天白キャンパス（愛知県・名古屋市）
- Data Source
  KAKENHI-PROJECT-16H06382
[Presentation] カチオン性有機凝集剤によるコロイド粒子の凝集効率に対するアニオン性高分子の影響2017
- Author(s)
  田中脩磨，山下祐司，足立泰久
- Organizer
  日本水環境学会
- Place of Presentation
  熊本大学（熊本県熊本市）
- Year and Date
  2017-03-17
- Data Source
  KAKENHI-PROJECT-15K12236
[Presentation] イモゴライト-フミン酸複合体の表面自由エネルギーの解析および疎水性発現のメカニズム2017
- Author(s)
  梅本陽平，山下祐司，足立泰久
- Organizer
  日本腐植物質学会
- Place of Presentation
  名城大学（愛知県名古屋市）
- Data Source
  KAKENHI-PROJECT-15K12236
[Presentation] イモゴライト―フミン酸複合体膜に対する水の接触角のフミン酸吸着量およびpH依存性2017
- Author(s)
  山下祐司，梅本陽平，足立泰久
- Organizer
  平成29年度農業農村工学会大会講演会
- Data Source
  KAKENHI-PROJECT-17K15343
[Presentation] Surface charge property of synthetic imogolite-humic acids complex and wettability of the thin layer2016
- Author(s)
  Yohei Umemoto, Yasuhisa Adachi, Yuji Yamashita
- Organizer
  International Humic Substances Society
- Place of Presentation
  Kanazawa University, Kanazawa, Ishikawa, Japan
- Year and Date
  2016-09-12
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K12236
[Presentation] Transport behavior of humic acids in porous media―effects of pH, electrolyte concentration and cation valency2016
- Author(s)
  Yuji Yamashita, Yasuhisa Adachi
- Organizer
  International Humic Substances Society
- Place of Presentation
  Kanazawa University, Kanazawa, Ishikawa, Japan
- Year and Date
  2016-09-12
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K12236
[Presentation] ガラスビーズ充填カラムにおけるフミン酸の輸送に対するコロイド安定性の影響2008
- Author(s)
  山下祐司・田中忠夫・足立泰久
- Organizer
  第42回水環境学会年会
- Place of Presentation
  名古屋大学
- Year and Date
  2008-03-21
- Data Source
  KAKENHI-PROJECT-07J01667
[Presentation] モデル土壌充填カラム内におけるフミン酸の移動特性に関する研究2008
- Author(s)
  山下祐司, 田中忠夫, 足立泰久
- Organizer
  第14回地下水・土壌汚染とその防止対策に関する研究集会
- Place of Presentation
  埼玉大学
- Year and Date
  2008-06-25
- Data Source
  KAKENHI-PROJECT-07J01667
[Presentation] Colloidal aspects of humic substances as a unit of transportation in ground wate2008
- Author(s)
  Yuji Yamashita, Tadao Tanaka, Yasuhisa Adachi
- Organizer
  Seminar on Colloids and Interfaces in Environments
- Place of Presentation
  University of Tsukuba
- Year and Date
  2008-06-07
- Data Source
  KAKENHI-PROJECT-07J01667
[Presentation] Effect of ionic strength on deposition kinetics of humic acid through the columns packed with glass beads2008
- Author(s)
  Yuji Yamashita, Tadao Tanaka, Yasuhisa Adachi
- Organizer
  The 5th International Conference Interfaces Against Pollution
- Place of Presentation
  Kyoto University
- Year and Date
  2008-06-03
- Data Source
  KAKENHI-PROJECT-07J01667
[Presentation] ガラスピーズ充填カラムにおけるフミン酵の沈着速度に対するイオン強度の影響2007
- Author(s)
  山下祐司・田中忠夫・足立泰久
- Organizer
  第13回地下水・土壌汚染とその防止対策に関する研究集会
- Place of Presentation
  京都大学
- Year and Date
  2007-06-06
- Data Source
  KAKENHI-PROJECT-07J01667
[Presentation] 土壌中の腐植物質の移動特性に対する無機イオンの影響2007
- Author(s)
  山下祐司・田中忠夫・足立泰久
- Organizer
  日本腐植物質学会第23回講演会・特別講演
- Place of Presentation
  弘前大学
- Year and Date
  2007-11-09
- Data Source
  KAKENHI-PROJECT-07J01667
[Presentation] 腐植物質はコロイドして扱えるか2007
- Author(s)
  山下祐司・田中忠夫・足立泰久
- Organizer
  平成19年度農業農村工学会講演会
- Place of Presentation
  島根大学
- Year and Date
  2007-08-28
- Data Source
  KAKENHI-PROJECT-07J01667

1. ADACHI Yasuhisa (70192466)

# of Collaborated Projects: 3 results

# of Collaborated Products: 20 results
2. 小林幹佳 (20400179)

# of Collaborated Projects: 2 results

# of Collaborated Products: 2 results
3. 雷中方 (30634505)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
4. 小川和義 (60375433)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
5. 京藤敏達 (80186345)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
6. hamamoto shoichiro (30581946)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. 長崎晋也 (20240723)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. 田中知 (10114547)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 斉藤拓巳 (90436543)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. 小田卓司 (40436556)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. 野村暢彦 (60292520)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. 和田茂樹 (60512720)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
13. 日下靖之 (00738057)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. 竹村貴人 (30359591)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. 斎藤広隆 (70447514)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. 浅田洋平 (50911252)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
17. 宮本輝仁 (40343983)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
18. 杉本卓也 (70899509)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Yamashita Yuji 山下 祐司

YAMASHITA Yuji 山下 祐司

山下 祐司 ヤマシタ ユウジ

Research Projects

Research Products

Co-Researchers

コロイド凝集の解析に基づく土壌・水環境の工学的新展開

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Understandings and model developments of transport characteristics of nano-materials in soils

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Understanding of soil physics phenomena of Imogolite-humic substances complex from a standpoint of colloid and interface sciencePrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Environmental Interface Engineering Based on Dynamic Analysis of Colloidal Flocculation

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Why do humic substances inhibit the efficiency of water treatment process?Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

連続時間確率過程を考慮したコロイド共存系での核種移行不確実性解析手法の構築

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

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Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Characteristics of Salt Leaching in Saline Soil with a Subsurface Hardpan: A Study Using Undisturbed Soil Core Samples2020

Author(s)

Journal Title

NAID

Data Source

[Journal Article] Strength of Humic Acid Aggregates: Effects of Divalent Cations and Solution pH2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Adsorption of Poly(acrylic acid) onto Negatively Charged Polystyrene Sulfate Latex Particles by Means of Particle Tracking of Brownian Motion, Electrophoretic Mobility and Fourier Transform Infrared Spectroscopy2020

Author(s)

Journal Title

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[Journal Article] 硬盤層を有する塩類土壌の溶脱特性－不攪乱土壌コアサンプルを用いた研究－2019

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NAID

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[Journal Article] Adsorption Characteristics of Humic Acids on Imogolite and Contact Angle of Water on Imogolite-Humic Acids Complex Membrane2018

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NAID

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[Journal Article] Inhibition of Cationic Polymer-Induced Colloid Flocculation by Polyacrylic Acid2018

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Yamashita Yuji 山下祐司

YAMASHITA Yuji 山下祐司

山下祐司ヤマシタユウジ