Výsledky vyhledávání - "Yasuo Ishiwata"

Physical Modeling of Rotary Flux Injection in an Aluminum Melting Furnace

Autor: Hanako Takahashi, Takuya Yamamoto, Masaya Shigemitsu, Sergey V. Komarov, Yasuo Ishiwata, Ryosuke Taniguchi

Publikováno v: Metallurgical and Materials Transactions B. 52:3363-3372

To reduce the environmental impact during purification of molten aluminum, an environmentally friendly flux is being considered as a potential replacement for the highly toxic chlorine-containing gas currently used. However, the reactivity of the flu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a226c3f0380c26ed0dd2e3b696e82d2
https://doi.org/10.1007/s11663-021-02265-9

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Evaluation of Aluminum Dross Generation Rate During Mechanical Stirring of Aluminum Through Model Experiment and Numerical Simulation

Autor: Sergey V. Komarov, Ryosuke Taniguchi, Takuya Yamamoto, Kenya Kato, Yasuo Ishiwata

Publikováno v: Metallurgical and Materials Transactions B. 51:1836-1846

The present study proposed, for the first time, an evaluation method to predict the generation rate of aluminum dross in melting or holding furnaces during mechanical stirring of molten aluminum through water model experiments and numerical simulatio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fbaccde38110276d67379cfe13877f13
https://doi.org/10.1007/s11663-020-01842-8

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Investigation on the Surface Vortex Formation During Mechanical Stirring with an Axial-Flow Impeller Used in an Aluminum Process

Autor: Yasuo Ishiwata, Takuya Yamamoto, Wataru Kato, Sergey V. Komarov

Publikováno v: Metallurgical and Materials Transactions B. 50:2547-2556

The present study investigated the mechanism of surface vortex formation in an aluminum melt vessel stirred by an axial-flow impeller mechanically. The oxide film is formed at the aluminum melt/air interface, and the movement of the interface entrain

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e3dfabb346dceceb14f7330db3935a7b
https://doi.org/10.1007/s11663-019-01681-2

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Evaluation of Mass Transfer in an Aluminum Melting Furnace Stirred Mechanically during Flux Treatment

Autor: Ryosuke Taniguchi, Takuya Yamamoto, Yasuo Ishiwata, Sergey V. Komarov, Kenya Kato

Publikováno v: MATERIALS TRANSACTIONS. 60:2008-2015

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b7459aba1e9789297d278882d0a88eec
https://doi.org/10.2320/matertrans.m2019055

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Structure and Validity of Questionnaire for Oral Frail Screening

Autor: Kenji Morita, Joji Tanabe, Nobuhiro Hanada, Akira Suzuki, Senichi Suzuki, Meu Ishikawa, Yoshiaki Nomura, Shunsuke Suzuki, Yasuo Ishiwata, Erika Kakuta, Kaoru Sogabe, Ryoko Otsuka, Yota Chiba, Koji Yamakawa, Yoshimasa Ishii, Ayako Okada

Publikováno v: Healthcare
Volume 9
Issue 1
Healthcare, Vol 9, Iss 45, p 45 (2021)

Oral frailty is defined as the mild decline in oral function and located at the early and reversible stage of frailty. Therefore, early detection and early treatment of oral frailty is very useful. Simple and easy questionnaires, such as an oral frai

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df223cee2ae6d95752444b6c52274b09

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Does Last Year’s Cost Predict the Present Cost? An Application of Machine Leaning for the Japanese Area-Basis Public Health Insurance Database

Autor: Nobuhiro Hanada, Koji Yamakawa, Erika Kakuta, Ryoko Otsuka, Yoshiaki Nomura, Kaoru Sogabe, Shunsuke Suzuki, Kenji Morita, Yota Chiba, Yoshimasa Ishii, Meu Ishikawa, Ayako Okada, Senichi Suzuki, Yasuo Ishiwata, Akira Suzuki, Joji Tanabe

Publikováno v: International Journal of Environmental Research and Public Health
International Journal of Environmental Research and Public Health, Vol 18, Iss 565, p 565 (2021)
Volume 18
Issue 2

The increasing healthcare cost imposes a large economic burden for the Japanese government. Predicting the healthcare cost may be a useful tool for policy making. A database of the area-basis public health insurance of one city was analyzed to predic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::018526d50aabb268b172fa4ed4cf378b
http://europepmc.org/articles/PMC7827468

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Nutritional Status and Oral Frailty: A Community Based Study

Autor: Senichi Suzuki, Nobuhiro Hanada, Shunsuke Suzuki, Yota Chiba, Ryoko Otsuka, Akira Suzuki, Yoshiaki Nomura, Joji Tanabe, Yasuo Ishiwata, Kenji Morita, Yoshimasa Ishii, Koji Yamakawa, Ayako Okada, Meu Ishikawa, Erika Kakuta, Kaoru Sogabe

Publikováno v: Nutrients
Nutrients, Vol 12, Iss 2886, p 2886 (2020)
Volume 12
Issue 9

Compromised oral health can alter food choices. Poor masticatory function leads to imbalanced food intake and undesirable nutritional status. The associations among nutritional status, oral health behavior, and self-assessed oral functions status wer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0761e5b33ec635445ed1e77f075f7d7
http://europepmc.org/articles/PMC7551233

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Investigation of impeller design and flow structures in mechanical stirring of molten aluminum

Autor: Yasuo Ishiwata, Takuya Yamamoto, Sergey V. Komarov, Aire Suzuki

Publikováno v: Journal of Materials Processing Technology. 261:164-172

This study investigated the flow characteristics of aluminum melt agitated by differently shaped impellers. A typical impeller used in the aluminum industry has twisted blades. The present study examined the effect of twisting angle on the flow patte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c80f0a83a0e20fa4dbc3834f1c2a85b7
https://doi.org/10.1016/j.jmatprotec.2018.06.012

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Investigation of melt stirring in aluminum melting furnace through Water model

Autor: Sergey V. Komarov, Kenya Kato, Yasuo Ishiwata, Yasunori Ueno, Masaaki Hayashi, Takuya Yamamoto

Publikováno v: Journal of Materials Processing Technology. 259:409-415

In the present study, an optimized low-cost numerical model has been developed to simulate melt stirring and mass transfer in aluminum melting furnace. To validate the numerical model, scaled-down water model experiments were also conducted. The pres

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::804468a4f644d9ebd0a5d6ae96919b49
https://doi.org/10.1016/j.jmatprotec.2018.04.025

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