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Journal Articles

Radiochemical analysis of rubble and trees collected from Fukushima Daiichi Nuclear Power Station

Tanaka, Kiwamu; Shimada, Asako; Hoshi, Akiko; Yasuda, Mari; Ozawa, Mayumi; Kameo, Yutaka

Journal of Nuclear Science and Technology, 51(7-8), p.1032 - 1043, 2014/07

 Times Cited Count:30 Percentile:93.52(Nuclear Science & Technology)

Journal Articles

The SNARE protein SYP71 expressed in vascular tissues is involved in symbiotic nitrogen fixation in ${it Lotus japonicus}$ nodules

Hakoyama, Tsuneo*; Oi, Ryo*; Hazuma, Kazuya*; Suga, Eri*; Adachi, Yuka*; Kobayashi, Mayumi*; Akai, Rie*; Sato, Shusei*; Fukai, Eigo*; Tabata, Satoshi*; et al.

Plant Physiology, 160(2), p.897 - 905, 2012/10

 Times Cited Count:28 Percentile:70.61(Plant Sciences)

Journal Articles

Experimental and modeling study on long-term alteration of compacted bentonite with alkaline groundwater

Yamaguchi, Tetsuji; Sakamoto, Yoshifumi; Akai, Masanobu; Takazawa, Mayumi; Iida, Yoshihisa; Tanaka, Tadao; Nakayama, Shinichi

Physics and Chemistry of the Earth, 32(1-7), p.298 - 310, 2007/00

 Times Cited Count:39 Percentile:72.36(Geosciences, Multidisciplinary)

Dissolution rate of montmorillonite, diffusivity of hydroxide ion and permeability coefficient in compacted sand-bentonite mixtures were experimentally determined and formulated. A coupled mass-transport/chemical-reaction code was developed to predict variation in permeability of engineered bentonite barrier with alkaline fluid by using the formulae.

Journal Articles

On the applicability of the hermetic permeability tests by means of a pair of flow pumps to low-permeability rocks

Seno, Shoji*; Toida, Masaru*; Kobayashi, Ichizo*; Tanaka, Mayumi*; Matsui, Hiroya; Kunimaru, Takanori; Kurikami, Hiroshi

Nihon Chikasui Gakkai 2006-Nen Shuki Koenkai Koen Yoshi, p.310 - 315, 2006/10

no abstracts in English

Journal Articles

Long-term alteration of bentonite; For safety evaluation of deep geological disposal

Tanaka, Tadao; Sakamoto, Yoshifumi; Yamaguchi, Tetsuji; Takazawa, Mayumi; Akai, Masanobu; Negishi, Kumi; Iida, Yoshihisa; Nakayama, Shinichi

JAERI-Conf 2005-007, p.105 - 110, 2005/08

Highly alkaline environments induced by cementitious materials in radioactive waste repositories are likely to dissolve and to alter montmorillonite, the main constituent of bentonite buffer materials. For the prediction of the long-term variations in permeability of compacted sand-bentonite mixtures, long-term alteration of bentonite should be quantified based on information accumulated by using the compacted or powdered bentonite materials, with batch experiments or column experiments. In this study, we summarize distinctive information obtained from various experimental systems, and propose functional and effective integration of experimental approaches to prediction of bentonite alteration.

Journal Articles

Experimental and modeling study to predict long-term alteration of bentonite buffer materials with alkaline groundwater

Takazawa, Mayumi; Negishi, Kumi; Sakamoto, Yoshifumi; Akai, Masanobu; Yamaguchi, Tetsuji; Iida, Yoshihisa; Tanaka, Tadao; Nakayama, Shinichi

JAERI-Conf 2005-007, p.236 - 241, 2005/08

no abstracts in English

Journal Articles

Modeling of variation in permeability of compacted bentonite with alkaline fluid for long-term safety assessment of geological disposal system

Takazawa, Mayumi; Yamaguchi, Tetsuji; Sakamoto, Yoshifumi; Akai, Masanobu; Tanaka, Tadao; Nakayama, Shinichi

NUMO-TR-04-05, p.A3_59 - A3_62, 2004/10

no abstracts in English

Oral presentation

Environmental monitoring from resident's point of view

Eda, Itsumu*; Omine, Mayumi*; Nemoto, Norimasa*; Shimizu, Tomoko*; Tanaka, Sachiko*; Kashima, Takao*; Ito, Yukari*; Taniyama, Hiroshi*; Kamei, Mitsuru*; Yonezawa, Rika; et al.

no journal, , 

no abstracts in English

Oral presentation

Development of methodlogy for the groundwater monitoring in natural barrier

Tanaka, Mayumi*; Toida, Masaru*; Atsumi, Hiroyuki*; Seno, Shoji*; Nakajima, Makoto*

no journal, , 

Ground penetrating radar with modulating frequency combined with static pressure measurement using hydrotesting tool for damaged zone, which were developed by Kajima coporation, has been applied to the drift of Tono mine for the evaluation of hydraulic characteristics of the damaged zone around the drift.

Oral presentation

A SNARE protein expressed in vascular tissue affects symbiotic nitrogen fixation in Lotus japonicus nodules

Hakoyama, Tsuneo*; Oi, Ryo*; Hazuma, Kazuya*; Suga, Eri*; Adachi, Yuka*; Kobayashi, Mayumi*; Akai, Rie*; Sato, Shusei*; Fukai, Eigo*; Tabata, Satoshi*; et al.

no journal, , 

Oral presentation

Radiochemical analysis of waste debris and stagnant water in Fukushima-1 Nuclear Power Plan, 1; Analysis of $$gamma$$-ray emitting nuclides, H-3, C-14, Sr-90

Kameo, Yutaka; Tanaka, Kiwamu; Ozawa, Mayumi; Sato, Kenji; Unno, Toshimichi; Kimiyama, Kazuhiro; Seki, Shuhei; Hoshi, Akiko

no journal, , 

no abstracts in English

Oral presentation

Ra adsorption on biogenic Mn(IV) oxide

Tanaka, Kazuya; Yamaji, Keiko*; Masuya, Hayato*; Tomita, Jumpei; Ozawa, Mayumi; Fukuyama, Kenjin*; Ohara, Yoshiyuki*; Kozai, Naofumi

no journal, , 

no abstracts in English

12 (Records 1-12 displayed on this page)
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