Hosokawa Powder Technology Foundation ANNUAL REPORT
Annual Report of Hosokawa Powder Technology Foundation founded for the purpose to contribute to the promotion and advancement of powder technology  

Annual Report of Hosokawa Powder Technology Foundation, which was founded in December, 1991 for the purpose to contribute to the promotion and advancement of powder technology, includes the report of the business contents and present status of the foundation in each fiscal year as well as the research reports submitted by the awardees supported by the foundation. The details of the activities of the foundation are opened in its homepage on the website(http://www.kona.or.jp/en/index.html).
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625 registered articles
(updated on April 17, 2024)
Online ISSN : 2189-4663
ISSN-L : 2189-4663
RESEARCH REPORT / TECHNICAL REPORT OPEN ACCESS
Featured article
Volume 30 (2022) Pages 78-83
Highly-Loaded Ag Clusters Prepared by Flame Synthesis Read more
Editor's pick

Ag clusters have been attracted due to their unique catalytic properties. However, Ag is less thermally stable than other noble metals and thus aggregates easily. In this study, Ag clusters (1~2 nm) were stabilized on the TiO2 surface by strong metal-support interactions (SMSIs) which were induced in a combustion field. As a result, Ag clusters in 20wt%Ag/TiO2 were stable at 350○C for 2 hours.

Volume 30 (2022) Pages 52-57
Mechanistic Study and Control of Hemolytic Action of Nanoparticles Read more
Editor's pick

Hemolysis assay using red blood cells (RBCs) has been widely used as the simplest cytotoxicity test for nanoparticles (NPs). However, the hemolytic mechanism of NPs is still not well understood. In this study, the author focused on the silica particle properties (size and surface functional group) as well as the exposure environments (solution temperature and addition of proteins) to report the results of (i) the number of silica NPs adhered to an RBC, (ii) the hemolysis assay, and (iii) the silica-induced aggregation/dispersion of RBCs. Consequently, an overall picture of the hemolytic action mechanism of silica NPs was shown.

Volume 30 (2022) Pages 72-77
Development of Particle Measurement Module by Using Phase Retrieval Holography Read more
Editor's pick

The measurement of fine particles using Gabor holography has been limited to laboratory use due to two problems arising from the measurement principle and the long numerical computation time, making online and inline measurements difficult. In this study, the development of a particle measurement module of a phase retrieval holography using a single-board computer with a graphics processing unit (GPU) has shown that it can be used for online and inline measurements in powder production processes.

Volume 30 (2022) Pages 58-64
Detect a Slight Change in Powders by Mahalanobis–Taguchi-System (MTS) Read more
Editor's pick

It is important to understand the relationship between the powders’ structure and their functionalities. The Mahalanobis-Taguchi system (MTS) has been utilized because that effective variables which improve accuracy of classification can be visualized. The surface-roughness-related variables were the key to classify into male/female of Japanese beetles larval droppings. Considering that binder concentration in the females’ dropping was higher than in the males, it could be deformed during molding process through the larval gut. The MTS can be the effective way to improve the accuracy of the classification by visualization of the relationship between powder structure and functionalities without individual differences.

Volume 30 (2022) Pages 95-97
How Small a Grain Will Exhibit Mechanical Behavior? Read more
Editor's pick

Trimeric and tetrameric cyclic aromatic molecules have been synthesized utilizing the flexibility of the Si-Si single bond. The changes in the structure and physical properties of these molecules as a function of temperature have been also reported.

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  • ホソカワ粉体工学振興財団の令和6(2024)年度KONA 賞・奨励賞・研究助成など公募のお知らせ <申請受付期間:2024年4月30日(火) ~ 2024年6月28日(金) *例年より前倒しの締め切りにご注意;助成対象期間:2025年4月1日~2026年3月31日>https://www.kona.or.jp/jp/grants/
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