Zobrazeno 1 - 10 of 57 pro vyhledávání: '"YOSHIHARU AZUMA"'
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Akademický článek
Detection of Defects of BGA by Tomography Imaging
Autor: Tetsuhiro SUMIMOTO, Toshinori MARUYAMA, Yoshiharu AZUMA, Sachiko GOTO, Munehiro MONDOU, Noboru FURUKAWA, Saburo OKADA
Publikováno v: Journal of Systemics, Cybernetics and Informatics, Vol 3, Iss 4, Pp 10-14 (2005)
To improve a cost performance and the reliability of PC boards, an inspection of BGA is required in the surface mount process. Types of defects at BGA solder joints are solder bridges, missing connections, solder voids, open connections and miss-regi
Externí odkaz: https://doaj.org/article/1011885b2c4343b3a50eb71c1e711c4f
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2
High spatial resolution MRA of renal arteries using contrast behavior between fat and water during transient phase before reaching a steady state
Autor: Yoshiharu Azuma, Sachiko Goto, Katsuhiro Kida
Publikováno v: European Journal of Radiology. 81:846-850
Purpose Our aim is high spatial resolution imaging of maximum intensity projection (MIP) images in renal magnetic resonance angiography (MRA) by constructing a protocol for acquiring three-dimensional volume data with isotropic voxels. Materials and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1cf3388fcf20b7fd95c3f3e175c3b9b
https://doi.org/10.1016/j.ejrad.2011.02.031
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3
The relationship between the microstructure and the magnetic properties of nano-scale magnetic particles in a Cu–Fe–Co ternary alloy
Autor: Naoya Wada, Mahoto Takeda, Yoshiharu Azuma, Zenji Hiroi
Publikováno v: International Journal of Materials Research. 101:356-360
The relationship between the microstructures and the properties of nano-scale Fe–Co magnetic particles formed in a copper alloy was investigated. Several structural aspects and physical properties of Fe–Co precipitates were investigated simultane
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f88d522454f07063d173cb4405631ab
https://doi.org/10.3139/146.110287
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4
Development of image analysis for detection of defects of BGA by using X-ray images
Autor: N. Furukawa, Saburo Okada, Tetsuhiro Sumimoto, M. Mondou, Yoshiharu Azuma, Sachiko Goto, Toshinori Maruyama
Publikováno v: Instrumentation and Measurement Technology Conference. 2:1131-1136
In the surface mount technology, Ball Grid Array (BGA) has been used in a production of PC boards, because of their excellent characters such as high density of the lead pin pitch, better lead rigidity and self-alignment during re-flow processing. Th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cddac3a1da4ea31b93683a9b5722b002
https://ousar.lib.okayama-u.ac.jp/32915
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9
顎関節のかみしめ時における応力解析
Autor: Kazuo Honda, Takaaki Sarai, Yoshiharu Azuma, Kenji Akahane
Publikováno v: 日本機械学會論文集. A編 = Transactions of the Japan Society of Mechanical Engineers. A. 64(617):99-103
The stress in a human temporomandibular joint (TMJ) during clenching was analyzed using a 2-dimensional model of a TMJ. The finite element method was employed and the contact between soft tissue and bone including articular cartilage was taken into c
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::933556a09e22829e68c2fb1080d34283
http://id.nii.ac.jp/1212/00001796/
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