Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Yuji Kotani"'
Autor:
Yuji Kotani, Kazunari Shibata, Takako T. Ishii, Daiki Yamasaki, Kenichi Otsuji, Kiyoshi Ichimoto, Ayumi Asai
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 2, p 143 (2023)
We often find spectral signatures of chromospheric cold plasma ejections accompanied by flares in a wide range of spatial scales in the solar and stellar atmospheres. However, the relationship between physical quantities (such as mass, kinetic energy
Externí odkaz:
https://doaj.org/article/688a17df9d5c4a649948a2cc46b978b2
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 522:4148-4160
Small flares frequently occur in the quiet Sun. Previous studies have noted that they share many common characteristics with typical solar flares in active regions. However, their similarities and differences are not fully understood, especially thei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1a7e2aba9e10a334a6b82e60d94abd5
https://doi.org/10.1093/mnras/stad1232
https://doi.org/10.1093/mnras/stad1232
Autor:
Yuji Kotani, Kazunari Shibata, Takako T. Ishii, Daiki Yamasaki, Kenichi Otsuji, Kiyoshi Ichimoto, Ayumi Asai
We often find spectral signatures of chromospheric cold plasma ejections accompanied by flares in a wide range of spatial scales in the solar and stellar atmospheres. However, the relationship between physical quantities (such as mass, kinetic energy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::169bbdf8d8e8f6f9a0191df2f53dda71
Autor:
Yuji Kotani, Kazunari Shibata
Jet phenomena with a bright loop in their footpoint, called anemone jets, have been observed in the solar corona and chromosphere. These jets are formed as a consequence of magnetic reconnection, and from the scale universality of magnetohydrodynamic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c46f37afe8b7974e0f630f332492bc7
Publikováno v:
Applied Mechanics and Materials. 705:44-50
In manufacturing car components, the hollow parts manufacturing method is useful for reducing the product weight, especially in drivetrain parts such as long shafts. Long, hollow shafts should have middle portions with large diameters and thin walls
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::404b797829dfa7ca56f8535d38a61169
https://doi.org/10.4028/www.scientific.net/amm.705.44
https://doi.org/10.4028/www.scientific.net/amm.705.44
Autor:
S. Azechi, D. Handa, Ai Tsuhako, Youichi Miyagi, Cort Anastasio, Takemitsu Arakaki, Kouichirou Okada, Taro Kimura, Yuji Kotani, Hitomi Nakajima, Yukiko Kuroki
Publikováno v:
Environmental Science & Technology. 47:8196-8203
Hydroxyl radical (OH) is an important oxidant in atmospheric aqueous phases such as cloud and fog drops and water-containing aerosol particles. We find that numerical models nearly always overestimate aqueous hydroxyl radical concentrations because t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e2a5384005309aa68b864f0f1d17438
https://doi.org/10.1021/es401927b
https://doi.org/10.1021/es401927b
Publikováno v:
Advanced Materials Research. :2794-2800
Recently the growing demand for light weight products with high strength has been increased by the rapid development of automobile and aircraft technology. Also, reduction of carbon dioxide emissions is one of the most important issues also in the au
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4dbcc7aa4e5959dba94886a34040139
https://doi.org/10.4028/www.scientific.net/amr.383-390.2794
https://doi.org/10.4028/www.scientific.net/amr.383-390.2794
Publikováno v:
Advanced Materials Research. 320:462-467
Prior knowledge of local increase in sheet metal thickness due to forming of products would contribute to decreasing total product weight by giving the product designer an advance notice of the appropriate sheet metal thickness distribution in a prod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc016ec71e017f004d5893e7ec39dc03
https://doi.org/10.4028/www.scientific.net/amr.320.462
https://doi.org/10.4028/www.scientific.net/amr.320.462
Publikováno v:
Advanced Materials Research. 320:456-461
In recent years global warming has become a worldwide problem. Reduction of carbon dioxide emissions is one of the most important issues also in the automobile industry. This weight reduction technology is important even if applied to electric vehicl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::342a1978db7cf67463e9a3dcd54f8cde
https://doi.org/10.4028/www.scientific.net/amr.320.456
https://doi.org/10.4028/www.scientific.net/amr.320.456
Publikováno v:
Advanced Materials Research. :452-455
The approach to total weight reduction has been a key issue for car manufacturers as they cope with more and more stringent requirements for fuel economy. In sheet metal forming, local increases in product-sheet thickness effectively contribute to re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a47201afc9750cb45778e90f0717c71
https://doi.org/10.4028/www.scientific.net/amr.301-303.452
https://doi.org/10.4028/www.scientific.net/amr.301-303.452