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Your search keyword '"Takeyama, Taro"' showing total 88 results
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88 results on '"Takeyama, Taro"'

1. TCTAP A-033 Impact of Postprocedural Percent Diameter Stenosis of 30 on Cumulative 3-Year Cardiovascular Outcomes After Elective Drug-Coated Balloon Angioplasty to de Novo Coronary Stenosis

Author

Tamura, Yohei, primary, Ishikawa, Tetsuya, additional, Yamada, Kota, additional, Ukaj, Tomoaki, additional, Kondo, Yuki, additional, Shimura, Masatoshi, additional, Takeyama, Taro, additional, Mori, Kahoko, additional, Miona, Arai, additional, Usami, Jun, additional, Mera, Yoshihiro, additional, Hisauchi, Itaru, additional, Nakahara, Shiro, additional, Itabashi, Yuji, additional, Kobayash, Sayuki, additional, Sakai, Yoshihiko, additional, and Taguchi, Isao, additional

Published
2024
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4. Cardiovascular Outcomes after Paclitaxel-Coated Balloon Angioplasty versus Drug-Eluting Stent Placement for Acute Coronary Syndrome: A Systematic Review and Meta-Analysis

Author

Kondo, Yuki, primary, Ishikawa, Tetsuya, additional, Shimura, Masatoshi, additional, Yamada, Kota, additional, Ukaji, Tomoaki, additional, Tamura, Yohei, additional, Arai, Miona, additional, Mori, Kahoko, additional, Takeyama, Taro, additional, Hori, Yuichi, additional, Hisauchi, Itaru, additional, Nakahara, Shiro, additional, Itabashi, Yuji, additional, Kobayashi, Sayuki, additional, and Taguchi, Isao, additional

Published
2024
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6. TCTAP A-031 Retrospective Comparison of Midterm Clinical Outcomes After Drug-coated Balloon Dilation Versus Drug-eluting Stents Placement for De-novo Stenosis in Large Vessel

Author

Ukaji, Tomoaki, primary, Ishikawa, Tetsuya, additional, Nakamura, Hidehiko, additional, Aoki, Hideyuki, additional, Mori, Kahoko, additional, Takeyama, Taro, additional, Kondo, Yuki, additional, Shimura, Masatoshi, additional, Yamada, Kota, additional, Mizutani, Yukiko, additional, Hisauchi, Itaru, additional, Nakahara, Shiro, additional, Kobayashi, Sayuki, additional, and Taguchi, Isao, additional

Published
2021
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7. Effects of Neutron Irradiation on Mechanical Properties of Molybdenum

Author

Kayano, Hideo, Narui, Minoru, Takeyama, Taro, Takahashi, Heishichiro, and Ohnuki, Somei

Abstract

Powder metallurgy molybdenum (PM-Mo) and electron beam melted molybdenum (EB-Mo), which were annealed at 1173K and recrystallization temperature 1573K, were neutron irradiated in JMTR at 1073-1453K to fluences of 1.8-5.2×10^n・m^ and then deformed in tension at room temperature. Elongation for EB-Mo annealed at 1173K and irradiated at each temperature was larger than that for unirradiated EB-Mo. For PM-Mo annealed at 1173K, elongation was reduced by irradiation at high temperature and the yield stress was lower than that for unirradiated one. It is suggested that grain boundary effects will affect irradiation embrittlement. The correlation between uniform elongation, yield stress, fracture stress and total elongation was illustrated.

Published
1991

9. The Fusion Reactor Materials and Electron Radiation Damage.

Author

TAKEYAMA, Taro

Abstract

Structural damage such as voids and radiation-Induced segregation (RIS) In candidate alloys for the first wall of the fusion reactor, such as TI and Ti-Nb modified 316 stainless steels (PCA) and Fe-Mn-Cr steels, were investigated by electron irradiation using a high voltage electron microscope. Void swelling in PCA was effectively suppressed, and in particular the void growth rate was remarkably retarded In Ti-Nb steels. RIS and precipitation were confirmed on void, dislocation loops and grain boundaries. It was indicated that void formation could be affected by the effect of solute segregation. RIS was explained by the difference of the volume size factor. Pre-Injected He and H produced a large Increase in void density. [ABSTRACT FROM PUBLISHER]

Published
1985

10. A Rapid Technique for Preparing Thin Foils for Electron Microscopy (Improved Jet-Polishing Method).

Author

TAKEYAMA, Taro, HACHINOHE, Mitsuo, and SATO, Yosikazu

Abstract

This rapid electropolishing technique consists of two processes, namely first jet-polishing and fiinal thinning and can be applied to a initial specimens as small as 3 mm in dia. and 0.1 mm thick. (1) Jet-polishing : The center region of the disc is thinned by jet-polishing using a stationary jet. The jet-polished area at the disc is about 2 mm in dia. and the thickness is reduced to about 30 μ. The jet-polishing time is one or two minutes. (2) Final-thinning : The electropolishing is carried out for uniform polishing of the center region of the jet-polished area. Thus, the selected area of specimen can be polished within five minutes. This rapid technique has been used for many metals and alloys (Ag, Al, Al-Cu, Co, Cu, Cu-Zn, Fe, Low carbon steel, Stainless steel and Ta), and the best condition for each material was determined. [ABSTRACT FROM PUBLISHER]

Published
1966

11. High Temperature Furnace for the Electron Microscope.

Author

TAKAHASHI, Noboru, TAKEYAMA, Taro, ITO, Kazuo, ITO, Tsugio, MIHAMA, Kazuhiro, and WATANABE, Masaru

Abstract

An electron microscope with high temperature furnace is described precisely. For examples of applications, the transformations of Al-Cu alloy by transmission and precipitation from Al-Mg-Si alloy by reflection are reported. [ABSTRACT FROM PUBLISHER]

Published
1956

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