【環境技術、材料合成】ココナツ殻由来素材の表面に微粒子を集積 Fine particles on bio-composite surface.

Other “intro” of papers from our lab >> /tag/paper/ HIGHLIGHTS:* Physical treatment on the biocomposite increases the surface roughness.* Single bond COOH network on the treated biocomposite promotes the particle deposition.* The network reduces the particles repulsion during the deposition process. # Bio-composite(バイオコンポジット)is a composite material formed by a matrix (resin) and a reinforcement of natural…

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…

What happens when we spray water-soluble “air pollution” particles to plants for 2 years? 水溶性 「大気汚染」 粒子を植物に2年間散布したらどうなるでしょう?

JOURNAL: Atmospheric Environment (2014) https://doi.org/10.1016/j.atmosenv.2014.01.023 Effects of 2-years exposure to (sub-micron) ammonium sulfate particles on growth and gas exchange rates of Fagus crenata (ブナ), Castanopsis sieboldii (スダジイ), Larix kaempferi (唐松) and Cryptomeria japonica (スギ) seedlings •No significant effect of the particles on growth was observed after 2 years.•Net photosynthetic rates of 3 species were not significantly changed.•Net photosynthesis…

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….

【植物と微粒子】森林へのエアロゾル沈着過程を解明. Deposition process of particles into forests

Particulate matter strongly adsorbed onto leaf surfaces is not washed away by rainfall and contributes to the EC (Elemental Carbon) flux. Leaf-surface particles must be included when evaluating the dry and total fluxes of particulate matter, in particular for water-insoluble constituents such as EC. 葉面に強く「付着」した粒子状物質は降雨によって洗い流されず、EC(元素炭素)フラックスに寄与する。粒子状物質、特にECのような水不溶性成分の乾燥流束および全流束を評価する場合には、葉表面粒子を含めなければならない。