Research

Does the leaf structure prevent the deposition of airborne particles? 葉の構造は大気中微粒子の付着を防止するのか?

Other "intro" of papers from our lab >> /tag/paper/ Our results suggest that epicuticular wax crystals affect distribution of particles on needles. Densely distributed epicuticular wax crystals might prevent the deposition of sub-micron particles on the surfaces of needles to retain the function of stomata. 電界放出型走査電子顕微鏡(FE-SEM)によるスギ(代表的な針葉樹種)の葉表面に人工的に散布されたサブミクロンサイズの炭素系粒子の局在を調べました。気孔の機能を保持するために、密に分布されたエピクチクラワックス結晶は、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。 Elucidation of the mechanism of adsorption of particles suspended in the… Continue reading Does the leaf structure prevent the deposition of airborne particles? 葉の構造は大気中微粒子の付着を防止するのか?

Event, People, Research

Kusdianto, Doctoral presentation, 19 Aug. 2014, 博士論文公聴会

19 Aug. 2014. BASE 1st floor meeting room DOCTORAL THESIS: The role of chemical and physical properties of substrate in the deposition of particles 粒子の沈着における基板表面の物理的・化学的特性の役割 by KUSDIANTO (Also a faculty member of Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember, ITS) PUBLICATIONS Area-selective deposition of charged particles derived from colloidal aerosol droplets on a surface… Continue reading Kusdianto, Doctoral presentation, 19 Aug. 2014, 博士論文公聴会

News, Research

Our results in a popular book (about PM2.5)

Our result were introduced in a book on PM2.5 (Author: Shiro Hatakeyama (TUAT) 2014) 越境する大気汚染: 中国のPM2.5ショック 著者: 畠山史郎 ISBN: 978-4-569-81740-8 (842 Yen) ==>> Book/Chapters by Wuled Lenggoro

News

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

News

2013 Kanji Takahashi Award for our paper, 高橋幹二賞

2013 Kanji Takahashi Award (from Japan Association of Aerosol Science and Technology) for our paper published in 2011: Measurement of Model Aerosols Containing Two Metal Components Formed via Cooling and Dilution Routes, Authors: Naoya HAMA, Yukie TAKASHIMA, Masao GEN, Mayumi TSUKADA, Hidehiro KAMIYA and Wuled LENGGORO* Journal of Aerosol Research, エアロゾル研究, 26, 277-285 (2011) For… Continue reading 2013 Kanji Takahashi Award for our paper, 高橋幹二賞

News, Research

Iinoya Award to a student (30th. Symposium on Aerosol). 院生が学会賞受賞

Doctoral student: MASAO GEN got the 2013 IINOYA AWARD during 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"… Continue reading Iinoya Award to a student (30th. Symposium on Aerosol). 院生が学会賞受賞

News

Invited to COMSOL Conference Tokyo 2012 (22 Nov.)

22 November 2012 COMSOL CONFERENCE TOKYO 2012 http://www.kesco.co.jp/conference/2012 Presenter: Masao Gen 冷却後の希釈器内における混合ガス由来のモデルエアロゾルの計測 Measurement of model aerosols derived from gas mixtures after cooling in a diluter 燃焼由来の重金属を含む粒子状物質は環境負荷の原因の一つとして懸念されている。発生ガスから粒子化は冷却ならびに希釈を経て起こるとされているが、未だに詳細なメカニズムは明らかになっていない。そこで本研究ではモデルガスから生成した粒子のオンライン計測を行った。また、ガスから粒子化へのプロセスの把握のため、流体と伝熱のシミュレーションを行い、実験結果との比較を行った。 The emission of particles involving heavy metals in combustion process is a contributor to environmental concerns. However there is little study on the mechanism by which gas-to-particle conversion occurs… Continue reading Invited to COMSOL Conference Tokyo 2012 (22 Nov.)

Event, News

Presented in Asian Particle Technology Symposium 2012, Singapore

Lenggoro and Gen (doctoral student) presented two papers in 5th Asian Particle Technology Symposium, Singapore 3-5 July 2012 Proceedings in USB-memory, ISBN: 978-981-07-2518-1 172: Oral: Assembly of Gas-Phase Nanoparticles on a Structural Substrate for Spectroscopic-Based Sensor to Detect a Pesticide Masao Gen*, Hideo Kakuta, Yoshihito Kamimoto, Wuled Lenggoro 銀ナノ粒子のエアロゾル集積によりセンサーを作製し、ラマン分光法との組み合わせを駆使して、現場(農場)における残留農薬の計測を試みた。(博士課程後期の玄にとっては初めての国際会議で口頭発表でした) 122: Oral: A Chamber System with Aerosol Generators… Continue reading Presented in Asian Particle Technology Symposium 2012, Singapore

Topic

PAPER: Measuring particles from mixed gases, ガス由来微粒子の計測

Measurement of Model Aerosols Containing Two Metal Components Formed via Cooling and Dilution Routes, Journal of Aerosol Research (2011) >> Abstract >> jstage >> Full article, PDF. 火力発電所等の燃焼過程から生成すると考えられる混合排気ガスを実験室内で模擬した。軽金属(アルカリ)と重金属系の粉末の昇華による混合ガス成分とその後の冷却・凝縮による粒子化の挙動を計測した。 The emission of alkali and heavy metals in combustion processes is an important contributor to environmental load. We investigated experimentally in the laboratory the generation of particles from… Continue reading PAPER: Measuring particles from mixed gases, ガス由来微粒子の計測

Research, Topic

PAPER. Inhaled Nanoparticles in Rat Lung…ラット肺に吸入したナノ粒子(遺伝子発現)

Investigation of Gene Expression of MMP-2 and TIMP-2 mRNA in Rat Lung in Inhaled Nickel Oxide and Titanium Dioxide Nanoparticles. Authors: Y. Morimoto, T. Oyabu, A. Ogami, T. Myojo, E. Kuroda, M. Hirohashi, M. Shimada, W. Lenggoro, K. Okuyama and I. Tanaka (An experimental study, with School of Medicine - University of Occupational and Environmental… Continue reading PAPER. Inhaled Nanoparticles in Rat Lung…ラット肺に吸入したナノ粒子(遺伝子発現)