Refine your search:     
Report No.
 - 
Search Results: Records 1-8 displayed on this page of 8
  • 1

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

Evaluation of the cryogenic tensile properties for aramid fiber rod

Saito, Toru; Okubo, Toshikazu*; Izumi, Keisuke*; Okawa, Yoshinao*; Kobayashi, Norihiro*; Yamazaki, Toru; Kawano, Katsumi; Isono, Takaaki

Teion Kogaku, 50(8), p.400 - 408, 2015/08

Aramid fiber-reinforced plastic (AFRP) has been developed as a structural material that has the advantages of light weight and high strength. In this study, tensile tests were carried out to measure the tensile properties of AFRP rod on the market for reinforcement of concrete at room temperature, 77 K and 4.2 K. Especially at cryogenic temperatures, it is difficult to perform a tensile test of the bar because the specimen slips through the jig grip. To prevent the rod from slipping, tensile tests were carried out with some filling conditions. The applicable and appropriate tensile test conditions were established by modifying the jig grip, treating the surface of the rod and using cryogenic epoxy infill to grip the rod. They were more than 1100 MPa. Additionally, the AFRP rod included a temperature dependence in which the Young's modulus increased as the test temperature decreased. It was confirmed that the Young's modulus increased because aramid fiber was more dominant than epoxy.

Journal Articles

Electric installation at environment of nuclear fusion, 49; Development of radiation-resistant lighting

Okamura, Hiroki*; Tsuchida, Takashi*; Okada, Masao*; Yamagata, Ryohei; Seito, Hajime; Haruyama, Yasuyuki; Kaneko, Hirohisa

2011 Nen (Dai-29-Kai) Denki Setsubi Gakkai Zenkoku Taikai Koen Rombunshu, p.367 - 368, 2011/09

no abstracts in English

Journal Articles

Development of radiation-resistant lighting

Tsuchida, Takashi*; Yamagata, Ryohei; Seito, Hajime; Haruyama, Yasuyuki; Kaneko, Hirohisa; Kashimura, Shinji*

JAEA-Review 2010-065, JAEA Takasaki Annual Report 2009, P. 22, 2011/01

There are a lot of restrictions of electric installations in a high radiation environment. For example longevity of electric devices would be shortened remarkably in a high radiation environment. It becomes impossible also for lighting equipments to keep an original function under a high radiological environment due to deterioration of insulation resistance of ballasts and luminous flux decrease of lamps, etc. The authors developed radiation-resistant lighting. This research aims to verify those functionality and safety under $$gamma$$-ray irradiation conditions.

Oral presentation

The Electric installation at environment of nuclear fusion, 48; Development of penetration part processing industrial method in radiation controlled area

Izumi, Keisuke*; Iguchi, Masayuki*; Kawasaki, Masaji*; Okawa, Yoshinao*; Oka, Kiyoshi; Yamagata, Ryohei; Koyanaka, Akihiro*

no journal, , 

At penetration parts in radiation controlled areas, such as walls and floors where cables go through, the high-airtight performance is required in order to control the negative pressure of air-conditioning. Moreover, since the cables get deteriorated by radiation, the easy replacement works are indispensable. However, the materials in general use have neither resistance, nor any sheltering performance against radiation. In this research, we have developed radiation-proof materials, to meet both an airtight and a sheltering performance.

Oral presentation

Development of power supply system for medical treatment

Nakajima, Yuta*; Kawasaki, Masaji*; Okawa, Yoshinao*; Oka, Kiyoshi

no journal, , 

no abstracts in English

Oral presentation

The Electric installation at environment of nuclear fusion, 52; Study of radiation-resistant LED lighting

Kamikawa, Masaaki*; Izumi, Keisuke*; Kawasaki, Masaji*; Oka, Kiyoshi; Yamagata, Ryohei

no journal, , 

no abstracts in English

Oral presentation

The Electric installation at environment of nuclear fusion, 53; Development of radiation-resistant LED lighting

Kamikawa, Masaaki*; Izumi, Keisuke*; Takemoto, Jumpei*; Kawasaki, Masaji*; Oka, Kiyoshi; Yamagata, Ryohei

no journal, , 

no abstracts in English

Oral presentation

The Electric installation at environment of nuclear fusion, 55; Development of a radiation resistance insulation constructional material

Izumi, Keisuke*; Iguchi, Masayuki*; Iida, Shinji*; Kawasaki, Masaji*; Okawa, Yoshinao*; Oka, Kiyoshi; Yamagata, Ryohei

no journal, , 

no abstracts in English

8 (Records 1-8 displayed on this page)
  • 1