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Journal Articles

The Survey for the integrity of containers for secondary wastes generated from contaminated water treatment

Iida, Yoshihisa; Nakadoi, Yasumasa; Yamaguchi, Tetsuji

Genshiryoku Bakkuendo Kenkyu (CD-ROM), 24(1), p.53 - 64, 2017/06

The information on the contaminated water treatment in Fukushima Daiichi Nuclear Power Station announced by Tokyo Electric Power Co., Inc. (TEPCO) were summarized in terms of the management of the secondary wastes, for the purpose of accumulating technical knowledge for long-term storage of the wastes. Concerns for the long-term soundness of waste storage containers were pointed out as follows, corrosion of stainless steel containers exposed to radiation in the presence of chloride ions, corrosion of stainless steel containers under acidic conditions or in the presence of activated carbon, and radiation degradation of the high-performance container (HIC) in which slurry was stored.

Journal Articles

Application of diamond to fusion plasma diagnostic

Kusama, Yoshinori; Ishikawa, Masao

NEW DIAMOND, 21(3), p.24 - 25, 2005/07

no abstracts in English

Journal Articles

Performance improvement of fluoropolymer electrolyte membranes by radiation processing

Yamaki, Tetsuya; Asano, Masaharu; Yoshida, Masaru

Gekkan Eko Indasutori, 10(6), p.5 - 11, 2005/06

no abstracts in English

Journal Articles

Journal Articles

Development of highly proton-conductive membranes based on crosslinked fluoropolymers by radiation chemical methods

Yamaki, Tetsuya; Yoshida, Masaru

Nenryo Denchi, 4(3), p.73 - 78, 2005/01

no abstracts in English

Journal Articles

Radiation-modified PTFE as the 21st century material; Development of high function and extreme tenacity for PTFE

Udagawa, Akira*; Ikeda, Shigetoshi*; Yagi, Toshiaki

Hoshasen To Sangyo, (103), p.54 - 58, 2004/09

no abstracts in English

Journal Articles

Anisotropically conducting films consisting of sub-micron copper wires in the ion track membranes of poly(ethylene terephthalate)

Maekawa, Yasunari; Koshikawa, Hiroshi; Yoshida, Masaru

Polymer, 45(7), p.2291 - 2295, 2004/03

 Times Cited Count:8 Percentile:68.93(Polymer Science)

Ion track membranes of poly(ethylene terephthalate) (PET) are applied to the production of anisotropically conducting films possessing copper wires of less than sub-micron in diameter. The membranes possessing cylindrical pores of 1.9 $$mu$$m and 200 nm in diameter were prepared by irradiation of $$^{129}$$Xe$$^{23+}$$ ion beams followed by etching in an aqueous NaOH. Copper wires were deposited into the pores by electrochemical plating in aqueous copper sulfate solution to prepare the PET/Cu hybrid membranes. The copper wires with 1.9 $$mu$$m in diameter showed wavelike surface roughness, resulting from the roughness of the pore side wall, whereas the copper wires with 200 nm in diameter showed smooth surfaces. The resistances of the membranes measured by a four terminal resistance method are in good agreement with the calculated values, indicating that the hybrid membranes possess conductivity perpendicular to the membrane surfaces but not parallel to the surfaces.

Journal Articles

${it Trans}$-1,2-dichloroethylene decomposition in low-humidity air under electron beam irradiation

Sun, Y.*; Hakoda, Teruyuki; Chmielewski, A. G.*; Hashimoto, Shoji*

Radiation Physics and Chemistry, 68(5), p.843 - 850, 2003/12

 Times Cited Count:7 Percentile:51.31

no abstracts in English

Journal Articles

Positronium formation reaction of trapped electrons and free positrons; Delayed formation studied by AMOC

Suzuki, Naoki*; Hirade, Tetsuya; Saito, Fuminori*; Hyodo, Toshio*

Radiation Physics and Chemistry, 68(3-4), p.647 - 649, 2003/10

 Times Cited Count:23 Percentile:16.49

no abstracts in English

Journal Articles

Polyelectrolyte membranes based on crosslinked polytetrafluoroethylene

Yamaki, Tetsuya; Asano, Masaharu; Yoshida, Masaru

Kogyo Zairyo, 51(4), p.39 - 42, 2003/04

no abstracts in English

Journal Articles

Yields of primary products from chloroethylenes in air under electron beam irradiation

Hakoda, Teruyuki; Hashimoto, Shoji*; Kojima, Takuji

Proceedings of 9th International Conference on Radiation Curing (RadTech Asia '03) (CD-ROM), 4 Pages, 2003/00

no abstracts in English

Journal Articles

Styrene grafted and sulfonated proton conducting membranes based on radiation-crosslinked polytetrafluoroethylene and their fuel cell applications

Yamaki, Tetsuya; Asano, Masaharu; Morita, Yosuke*; Suwa, Takeshi*; Yoshida, Masaru

Proceedings of 9th International Conference on Radiation Curing (RadTech Asia '03) (CD-ROM), 4 Pages, 2003/00

Proton exchange membranes were prepared by the radiation-induced grafting of styrene into crosslinked polytetrafluoroethylene (PTFE) films and subsequent sulfonation. The degree of grafting was controlled in the range of 7-75% by the crosslinking density of the PTFE matrix as well as the grafting conditions. The films at the grafting yield of $$geq$$ 30% were found to give the ion exchange membranes with a homogeneous distribution of sulfonic acid groups. The resulting membranes showed a large ion exchange capacity reaching 2.9 meq g$$^{-1}$$, which exceeded the performance of commercially-available perfluorosulfonic acid films such as Nafion. This will encourage the use of our ion exchange membranes in polymer electrolyte fuel cells.

Journal Articles

Development of fluoropolymer electrolyte membranes by using a radiation-induced crosslinking technique

Yoshida, Masaru; Yamaki, Tetsuya

Saishin Nenryo Denchi Buzai; Sono Saisentan Gijutsu To Shinraisei Hyoka, p.82 - 92, 2003/00

no abstracts in English

Journal Articles

Crosslinked fluoropolymer electrolyte membranes prepared by ionizing radiation

Yamaki, Tetsuya; Yoshida, Masaru

Zukai, Nenryo Denchi no Subete, p.117 - 119, 2003/00

no abstracts in English

Journal Articles

Effect of water and oxygen contents on the decomposition of gaseous trichloroethylene in air under electron beam irradiation

Hakoda, Teruyuki; Hashimoto, Shoji; Kojima, Takuji

Bulletin of the Chemical Society of Japan, 75(10), p.2177 - 2183, 2002/10

 Times Cited Count:7 Percentile:64.3(Chemistry, Multidisciplinary)

no abstracts in English

Journal Articles

Vapor response properties of conducting composites prepared from crystalline oligomer-grafted carbon black

Chen, J.*; Tsubokawa, Norio*; Maekawa, Yasunari; Yoshida, Masaru

Carbon, 40(9), p.1597 - 1617, 2002/08

 Times Cited Count:20 Percentile:25.86

no abstracts in English

Journal Articles

Analytic cross sections for electron collisions with hydrocarbons; CH$$_4$$, C$$_2$$H$$_6$$, C$$_2$$H$$_4$$, C$$_2$$H$$_2$$, C$$_3$$H$$_8$$, and C$$_3$$H$$_6$$

Shirai, Toshizo; Tabata, Tatsuo*; Tawara, Hiroyuki*; Ichikawa, Yukikazu*

Atomic Data and Nuclear Data Tables, 80(2), p.147 - 204, 2002/03

 Times Cited Count:67 Percentile:6.08(Physics, Atomic, Molecular & Chemical)

Cross sections for 138 processes of hydrocarbons in collisions with electrons, based on available literature sources, are critically compiled. The leterature has been surveyed to September 2000. A short comment is given for each measurement. The recommended data sets are presented in separate graphs for each process. Analytic fits to the recommended cross sections are also presented.

Journal Articles

Development of polymer electrolyte membrane for fuel cell by radiation induced graft polymerization

Suwa, Takeshi; Morita, Yosuke

Hoshasen To Sangyo, (93), p.22 - 28, 2002/03

no abstracts in English

Journal Articles

Polymer electrolyte membrane for fuel cell produced by radiation

Suwa, Takeshi

Porima Daijesuto, 54(3), p.17 - 26, 2002/03

no abstracts in English

Journal Articles

Charge-separation process of the C$$_{2}$$H$$_{4}$$+Cl$$_{2}$$ reaction in water; Ab initio molecular orbital study using a cluster model

Kurosaki, Yuzuru

Journal of Physical Chemistry A, 105(49), p.11080 - 11087, 2001/12

 Times Cited Count:3 Percentile:89.98(Chemistry, Physical)

no abstracts in English

275 (Records 1-20 displayed on this page)