Made by: Seki Akito (undergrad. final project), Iguchi Yuki (Master 1st year) in 2010.
Tag: ecosystem
水熱処理によるアブラヤシ中皮繊維のナノセルロース化【環境技術】Nanocellulose from oil palm mesocarp fiber using hydrothermal treatment
低濃度のシュウ酸二水和物を組み合わせた分離技術。高い結晶化度。100nm以下の粒度分布。Separation technology combined with low concentration of oxalic acid dihydrate. High crystallinity. Particle size distribution of less than 100nm.
【環境技術】水中アンモニウムイオンに対して粘土粒子の吸着力は？Spray-Dried Clay Powders for Ammonium Removal
Adsorption capacity was examined after up to 2 h of sample exposure.
Adsorption isotherm for bentonite showed a fit with Langmuir model.
吸着容量は、最大2時間のサンプル暴露後に調べた。ベントナイトの吸着等温線は、Langmuirモデルにフィットした。
【植物とエアロゾル】植物葉における水溶性粒子の局在の可視化 Localization of “Water-Soluble” Particles on Leaf Surfaces
堆積した粒子は凝集せず、葉の構造に依存性がないことを確認した
The particles were deposited on the leaves and needles in the same manner, regardless of leaf structure.
【植物とエアロゾル】作物・小松菜に水溶性微粒子を長期的に散布した After long-term spraying of water-soluble fine particles on a crop (komatsuna)…
Short Introductions of other papers: /paper/ Komatsuna plants were grown and exposed to ammonium sulfate (((NH4)2SO4), AS) submicron particles for 16 days (22.5 µg m−3 per day) in phytotrons. The amount of particles deposited on the leaf decreased over time, because AS particles deposited on the leaf deliquesced, allowing ions such as SO42− in the…
【植物とエアロゾル】葉の構造は大気汚染物質の付着を防ぐ？Does the leaf structure prevent the aerosol deposition?
Epicuticular “wax” crystals affect distribution of incoming particles on leaf surfaces. 気孔の機能を保持するために密に分布されたワックスは、気中からの微粒子の付着を防止する役割があるかもしれません。
【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…
【計測技術開発】微粒子の散布による表面上の分子層を可視化：Visualization of “molecular layer” by nanoparticles.
World-1st. Nanoparticle sensor system for probing organic molecules. Sub-100 nm resolution . 世界初。応用は残留農薬, PM2.5, 半導体表面の検査など
【植物に学んだ技術】正帯電した気中粒子が親水性が高い表面に付きやすい Plus-charged aerosols easily arrive onto wet part of a “leaf” surface: Learning from the Nature
現象の発見。大気汚染と植物表面の理解。新しい材料の開発。Hints for material design, and for research on the deposition of airborne particles on plant surfaces
【環境技術】薄板の裏側まで微粒子が沈着？Are the particles deposited to the back of a sheet?
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”…
【植物と微粒子】2年間、水溶性微粒子を植物に与えたら？Effect of water-soluble particles on growth of plants (2 years)
JOURNAL: Atmospheric Environment (2014)http://www.sciencedirect.com/science/article/pii/S1352231014000405 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 of…
【環境計測技術】葉面上の炭素系粒子の計測手法. Measuring carbon-particles on leaf surface
We investigated an optical method for measuring the amount of BC extracted from foliar surfaces and collected on quartz fiber filters. 樹木・葉面から抽出され石英繊維フィルター上に収集されたカーボン系粒子の量を測定する光学的方法を検討した。
TUAT "Particles & Transfer" Lab 