二重マスクの粒子捕集効果を調査した。計算流体力学(CFD)シミュレーションを用いて、異なるマスク構成の性能を評価した。結果、N95マスクと再利用可能なマスクの組み合わせが最も優れた粒子捕集効果を示した。This study has explored the effectiveness of double masking in filtering airborne particles. Using computational fluid dynamics (CFD) simulations, the study investigated how different mask configurations perform in preventing particle transmission. The findings reveal that a combination of N95 and reusable masks offers superior filtration, significantly reducing particle escape compared to other mask types.
Category: International
2024/10/25 Keynote. International Program, Faculty of Agro-Industrial Tech. (Univ. Padjadjaran) 農業技術学部で基調講演
Wuled Lenggoro (Tokyo University of Agriculture and Technology, Japan) – Particulate Technology
CHISA 2024 (Prague, Czech Republic): Potassium Hydroxide Activation in Soil Research 多孔質土壌の水酸化カリウム活性化
Potassium hydroxide activation of porous soils: effect of physicochemical structure on carbon dioxide adsorption
多孔質土壌の水酸化カリウム活性化:物理化学構造が二酸化炭素吸着に及ぼす影響
Alumni/ Paper Award: Soot Particles for CO2 Adsorption 二酸化炭素吸着のためのすす粒子
エタノール処理後のすす粒子は、未処理のすすと比較して、CO2吸着部位の数が多く表面が不均一であることを示唆していました。 Soot particles after ethanol treatment had a non-uniform surface with a greater number of CO2 adsorption sites compared to untreated soot.
Visiting Researchers Dr. Khairunnisa (UTM, Malaysia) & Dr. Sembada (ITB, Indonesia). Plus, 13 visitors from ITB
School of Life Science & Technology, Institut Teknologi Bandung, Malaysia-Japan International Institute of Technology (MJIIT) Universiti Teknologi Malaysia
Published) Green Synthesis of Silver Particles using Seaweed 海藻から抽出したエキスを用いて銀粒子を合成
本研究は、抗菌性を有する銀ナノ粒子の環境に優しい合成に海藻を用いることの有望な可能性を示すものである。This study demonstrates the promising potential of using seaweed for the green synthesis of silver nanoparticles with antimicrobial properties.
A Meeting: Academic Collaboration Between ITB and TUAT
ITB Vice-Dean/Academic, Faculty of Industrial Technology visited TUAT
Recorded (Invited) Agrotech. & Environment Symposium (2 Nov.)
“Advances in Agro-technological innovations for sustainable development. Invited speakers: Yoshihiko Tsumura (Univ. Tsukuba), W. Lenggoro (TUAT)
A student presented: Asian Pacific Confederation of Chemical Engineering, in Manila. アジア太平洋化学工学連合(フィリピンで国際学会発表)
Anca Sembada, a doctoral student presented Silica nanopriming in tomato (Solanum lycopersicum) seeds helps alleviate stress induced by polyethylene glycol ポリエチレングリコールによって誘発されたストレスを軽減するためのトマト種子におけるシリカナノ粒子「プライミング」の効果 at APCChE (The Asian Pacific Confederation of Chemical Engineering) Congress 2023 . Held in Manila, Philippines. Organized by the Philippine Institute of Chemical Engineers (PIChE).
New Findings) How silica particles boost seed germination in different species. キュウリ、ナス、ニンジン等の種子発芽にシリカ粒子の影響は?
red chili pepper, cayenne pepper, cucumber, eggplant, tomato, carrot
赤唐辛子、カイエンペッパー(香辛料の一種)、キュウリ、ナス、トマト、ニンジン
卒論生A bachelor student: 3 weeks at Polytech Montpellier, France.モンペリエ大学
Undergraduate Polytech FLOW Summer School program
Co-hosted) Intl. Conference & Exhibition on Powder Tech. Indonesia (2023/8) Japan Powder Tech. Forum
Joint Conferences: The 4th International Conference and Exhibition on Powder Technology Indonesia 2023, and the 13th International Conference on Theoretical and Applied Physics 2023.
Published) Carrageenan-silver particles with antibacterial & antioxidant properties 抗菌・抗酸化作用を有するカラギーナン・銀粒子
Flower-like c-Ag, 50 nm in thickness. Promising antibacterial properties against E. coli and S. aureus. 厚さ50 nmのフラワー状c-Ag粒子。大腸菌、黄色ブドウ球菌に対する抗菌性が期待できます。
Online/Recorded: Academic Career at a Japanese University (in Indonesian)
Broadcasted at YOUTUBE 2023 : https://youtu.be/D81EgqjXOCQ?feature=shared
農学で見つけた工学的なヒント: リスクとイノベーションのバランス (録画 Invited talk, Recorded) Engineering tips found in agricultural studies: Balancing Risk & Innovation.
15-year trial of a Particle Technology Lab bridging the engineering and agricultural studies. 工学と農学との橋渡しに研究テーマの役割
A student attended WCPT9 in Madrid, Spain.大学院生が現地で発表
Tiara Pratiwi, oral presentation. “Observation of Glycerol-Water Mixtures Transport Through Heated Biomass Layers Using Colloidal Fluorescent Particles”
卒業生が主催者International Seminar (Chemical Engineering) Oct. 2022, Surabaya
Prof. Lenggoro is a member in Advisory Boards. A TUAT graduate: Dr. Kusdianto (ITS) is a member in Organizing Committee
Nanocellulose from oil palm mesocarp fiber. アブラヤシ中皮繊維のナノセルロース化
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以下の微粒子。Separation technology combined with low concentration of oxalic acid dihydrate. High crystallinity. Particle size is less than 100nm.
Talk for new students at a technological university (2021) in Indonesian (recorded)
2021/9/25 for all new students at Institut Teknologi Indonesia インドネシア工科大学の新入生に向けての講義
Meeting with the Chairman, National Research & Innovation Agency (BRIN) Indonesia: Dr. L. T. Handoko
インドネシア国家研究イノベーション(BRIN)Handoko長官と対談した。
Multi-Cultural Students: Generating Outcomes through Interactions (Recorded 録画)多文化を持つ学生:相互作用を通じたアウトカムの生成“
The life of a university professor in 23 years was condensed into 12 minutes. 23年間の大学教員の生活を12分に凝縮されました。
Short lectures on “Particle Technology” from Malaysia, UK and TUAT/Japan (recorded)
Transforming a Particle Engineering Lab: From “Fast” Advanced Materials to “Slow” Agricultural Studies (Prof. Lenggoro)
Three students presented. 8th Asian Particle Technology Symposium (Osaka, 2021)
Three doctoral students: Yosuke Asanuma, Tiara Pratiwi, and Takuma Takahashi will present their papers.