Chemical-coating of clay-based soil particles slows water evaporation. World’s 1st. 粘土系土壌粒子の化学コーティングは水の蒸発を遅らせる。世界初。

Plastic sheeting is commonly used to conserve water in crop production, but its waste has become a challenge. We report that a silane coupling agents-based coating can be applied to natural clayey soil samples to suppress water evaporation. 一般的に作物の生産で水を節約するために、プラスチックのシートが使われているが、その廃棄物が課題となった。本研究では、水の蒸発を抑制するために、天然の粘土質土壌にシランカップリング剤系コーティングが適用できることを報告している。

Can aerosol particles deposit from 25℃ to 40℃ surfaces?【医療機器の開発】室温中のエアロゾルを40℃の表面に沈着させる流体制御

閉鎖空間における沈着を考慮したエアロゾルフローシステムを構築した。沈着効率が悪い従来法に代わって本手法を気液界面細胞曝露に応用できれば有用である。An aerosol flow system has been constructed to mimic the delivery of particles to the air-liquid interface. Potentially be applied for the deposition and analysis of submicron particles on various types of substrate without the need for vacuum imaging analysis..

Aerosols deposit behind the sheet (Plant leaf model)?(植物葉モデル)薄板の裏側までエアロゾルが沈着する?

Simultaneous deposition of submicron aerosols onto both surfaces of a plate substrate by electrostatic forces We demonstrate one-step deposition of submicrometer-sized particles suspended in the gas-phase onto a plate type substrate using an electrostatic-assisted spray system. The particles were deposited on plate-type metallic surfaces, on both front and rear sides of the substrate. This “both-side”…

Doctoral presentation (2014/5), 博士公聴会 Immobilization of particles from gas phase onto surfaces 気相からの粒子の基板への固定化

Immobilization of submicron- and nano-particles from gas phase onto solid surfaces by external forces (外力を用いたサブミクロン粒子とナノ粒子の気相から固体基板への固定化)(Thesis is written in English) 2014/5/23 Friday, 15:00 ~ 16:30, BASE1階会議室 発表者: 玄 大雄 (GEN, Masao) ** ** After working with WPI-AIMR, Tohoku University as Assistant Professor, he joined City University of Hong Kong Keywords: Deposition/assembly of particles, Particle exposure system for…

Invited presentation. COMSOL (a simulation software) conference. 熱流体シミュレーション(招待)発表

We were invited for a poster talk at 2013 COMSOL Conference 2013 (Tokyo, 7 Dec.) 熱処理シミュレーションによる酸化物粉末のドーピング効率の向上 Optimization of Post-Heat Treatment for Doping of Metal Oxide Particles by P. Widiatmoko, Y. Kondo, H. Matsushima, W. Lenggoro Liquid-to-solid route for preparing a doped metal oxide (powder) shows advantage on the homogeneity of the precursor as well as…

Iinoya Award (30th. Symposium on Aerosol) to a graduate student. 大学院生が学会賞を受賞

Doctoral student: MASAO GEN got the 2013 IINOYA AWARDduring 30th SYMPOSIUM ON AEROSOL SCIENCE & TECHNOLOGY (held in Kyoto Univ.)(Supplementary prize = cash prize of 100,000 Yen) “Development of a portable sensor system based on aerosol particles to detect pesticide residues” エアロゾル粒子センサーを用いた携帯型残留農薬検出システムの開発 (東京農工大学・大学院博士後期課程)玄 大雄 The award selection was based from a “special session” (5 min….

A workstation for numerical simulation, 計算機

A simulation hardware: 計算機WorkstationRAM: 32 GB; HD = 1 TB;CPU : Intel ® Xeon® Processor X5690(3.46 GHz, 6 core) for Simulation software:, 数値シミュレーション(有限要素法、熱流体、など)FEM based multi-physics COMSOL From fluid flow/heat transfer to structural mechanics and electromagnetic analyses.http://www.comsol.com/ 64 bitOS: Windows® 7 Professional(64bit) Service Pack 1CPU : Intel ® Xeon® Processor X5690(3.46GHz/6 core)CPU(2nd): インテル® Xeon® プロセッサー X5690(3.46GHz/6コア)…