Refine your search:     
Report No.
 - 
Search Results: Records 1-20 displayed on this page of 112

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

Development of the treatment method for difficult wastes aimed at decommissioning of JMTR; Structural materials of reactor and used ion-exchange resins

Seki, Misaki; Nakano, Hiroko; Nagata, Hiroshi; Otsuka, Kaoru; Omori, Takazumi; Takeuchi, Tomoaki; Ide, Hiroshi; Tsuchiya, Kunihiko

Dekomisshoningu Giho, (62), p.9 - 19, 2020/09

Japan Materials Testing Reactor (JMTR) has been contributing to various research and development activities such as the fundamental research of nuclear materials/fuels, safety research and development of power reactors, and radioisotope production since the beginning of the operation in 1968. JMTR, however, was decided as a one of decommission facilities in April 2017 and it is taken an inspection of a plan concerning decommissioning because the performance of JMTR does not confirm with the stipulated earthquake resistance. As aluminum and beryllium are used for the core structural materials in JMTR, it is necessary to establish treatment methods of these materials for the fabrication of stable wastes. In addition, a treatment method for the accumulated spent ion-exchange resins needs to be examined. This report describes the overview of these examination situations.

Journal Articles

Research on activation assessment of a reactor structural materials for decommissioning, 2

Seki, Misaki; Ishikawa, Koji*; Sano, Tadafumi*; Nagata, Hiroshi; Otsuka, Kaoru; Omori, Takazumi; Hanakawa, Hiroki; Ide, Hiroshi; Tsuchiya, Kunihiko; Fujihara, Yasuyuki*; et al.

KURNS Progress Report 2019, P. 279, 2020/08

no abstracts in English

Journal Articles

Research on activation assessment of a reactor structural materials for decommissioning

Seki, Misaki; Ishikawa, Koji*; Nagata, Hiroshi; Otsuka, Kaoru; Omori, Takazumi; Hanakawa, Hiroki; Ide, Hiroshi; Tsuchiya, Kunihiko; Sano, Tadafumi*; Fujihara, Yasuyuki*; et al.

KURNS Progress Report 2018, P. 257, 2019/08

no abstracts in English

Journal Articles

Root-endophytic Chaetomium cupreum chemically enhances aluminium tolerance in $$Miscanthus sinensis$$ via increasing the aluminium detoxicants, chlorogenic acid and oosporein

Haruma, Toshikatsu*; Yamaji, Keiko*; Ogawa, kazuyoshi*; Masuya, Hayato*; Sekine, Yurina; Kozai, Naofumi

PLOS ONE (Internet), 14(2), p.e0212644_1 - e0212644_16, 2019/02

 Times Cited Count:5 Percentile:23.83(Multidisciplinary Sciences)

Miscanthus sinensis Andersson is a pioneer plant species that grows naturally at mining sites. $$Miscanthus sinensis$$ can detoxify aluminium (Al) by producing phytosiderophores. Root-endophytic Chaetomium cupreum, which produces microbial siderophores, enhances Al tolerance in M. sinensis. We identified the siderophore produced by C. cupreum as oosporein. It was revealed that oosporein could detoxify Al. Inoculation test of C. cupreum onto M. sinensis in acidic mine soil showed that C. cupreum promoted seedling growth, and enhanced Al tolerance.

Journal Articles

Cross section measurement in J-PARC for neutronics of the ADS

Meigo, Shinichiro; Matsuda, Hiroki; Iwamoto, Hiroki

Proceedings of 13th International Topical Meeting on Nuclear Applications of Accelerators (AccApp '17) (Internet), p.396 - 402, 2018/05

no abstracts in English

Journal Articles

Measurement of aluminum activation cross section and gas production cross section for 0.4 and 3-GeV protons

Meigo, Shinichiro; Nishikawa, Masaaki; Iwamoto, Hiroki; Matsuda, Hiroki

EPJ Web of Conferences, 146, p.11039_1 - 11039_4, 2017/09

 Times Cited Count:1 Percentile:100

no abstracts in English

Journal Articles

Compatibility of lithium oxide single crystals with tungsten sputtered films; The Effect of passivation films

Nasu, Shoichi*; Nagata, Shinji*; Yoshii, Kiichiro*; Takahiro, Katsumi*; Kikuchi, Naoto*; Kusano, Eiji*; Moto, Shintaro*; Yamaguchi, Sadae*; Ohashi, Kentaro*; Noda, Kenji; et al.

Funtai Oyobi Fummatsu Yakin, 52(6), p.427 - 429, 2005/06

no abstracts in English

Journal Articles

Lithogenic flux in the Japan Sea measured with sediment traps

Otosaka, Shigeyoshi; Togawa, Orihiko; Baba, Masami*; Karasev, E.*; Volkov, Y. N.*; Omata, Nobutaka*; Noriki, Shinichiro*

Marine Chemistry, 91(1-4), p.143 - 163, 2004/11

 Times Cited Count:34 Percentile:30.78(Chemistry, Multidisciplinary)

Spatial and temporal variations of particulate flux were observed by sediment trap experiments at three areas of the Japan Sea (western Japan Basin, eastern Japan Basin and Yamato Basin) during 1999-2002. Mass flux in the Japan Sea showed remarkable regional distribution. Annual mean mass flux at 1 km depth was 455 mg/m$$_{2}$$/day in the eastern Japan Basin, 252 mg/m$$_{2}$$/day in the eastern Japan Basin and 147 mg/m$$_{2}$$/day in the Yamato Basin. Mass fluxes were especially large in spring (March-May). From the distribution of elemental abundance in sediments, La/Yb and Mn/Al ratios as indicators of the origin of aluminosilicates and the "freshness" of particles, respectively. These proxies suggested three sources of lithogenic material for the Japan Sea, (1) atmospheric input of Kosa particles, (2) lateral transport from the East China Sea, and (3) lateral transport from Island-Arc such as the Japan Islands.

Journal Articles

${it Ab initio}$ molecular dynamics study of polarization effects on ionic hydration in aqueous AlCl$$_{3}$$ solution

Ikeda, Takashi; Hirata, Masaru; Kimura, Takaumi

Journal of Chemical Physics, 119(23), p.12386 - 12392, 2003/12

 Times Cited Count:41 Percentile:20.02(Chemistry, Physical)

The solvation shell structure and dynamics of Al$$^{3+}$$ and Cl$$^{-}$$ in an aqueous solution of 0.8 M AlCl$$_{3}$$ are studied under ambient conditions by using ${it ab initio}$ molecular dynamics method. The solvation structures obtained from our ${it ab initio}$ simulations are in good agreement with the experimental ones for both Al$$^{3+}$$ and Cl$$^{-}$$. A detailed analysis of intramolecular geometry of hydration waters and dipole moments of the ingredients shows that the polarization has substantial effects on the structures and dynamics of both the cation and anion hydration shells. Implications to the metal hydrolysis of Al$$^{3+}$$ will also be given.

JAEA Reports

Oscillator strength, transition rates and lifetimes for n=3 states in Al-like ions

Safronova, U. I.*; Sataka, Masao; Johnson, W. R.*; Safronova, M. S.*

JAERI-Data/Code 2001-022, 60 Pages, 2002/05

JAERI-Data-Code-2001-022.pdf:4.22MB

no abstracts in English

Journal Articles

Development of new dosimeter using colored alumilite fading

Obara, Kenjiro

Genshiryoku eye, 48(2), p.46 - 48, 2002/02

no abstracts in English

Journal Articles

Mere look to know an accumulation, development colored alumilite dosimeter

Obara, Kenjiro

Hoshasen To Sangyo, (92), p.56 - 60, 2001/12

no abstracts in English

JAEA Reports

Fabrication of thin cadmium cylinder coated with aluminum for neutron irradiation capsules

Takeyama, Tomonori; Chiba, Masaaki; Isozaki, Futoshi*; Amezawa, Hiroo; Itabashi, Yukio; Kikuchi, Taiji; Otabe, Yoshikiyo*; Hirata, Yuji*; Taka, Isamu; Oba, Toshihiro

JAERI-Tech 2001-024, 32 Pages, 2001/03

JAERI-Tech-2001-024.pdf:4.41MB

no abstracts in English

JAEA Reports

Reduction technique of welding defect in the welded joint of aluminum alloys base on GTAW

Maeda, Akio; Oba, Toshihiro; Kikuchi, Hiroyuki; Shibata, Katsuyuki

JAERI-Tech 2001-003, 48 Pages, 2001/02

JAERI-Tech-2001-003.pdf:5.95MB

no abstracts in English

JAEA Reports

Measurement of tritium activity in the aluminum pipe of JRR-2 heavy water primary cooling system using imaging plate

Motoishi, Shoji; Kobayashi, Katsutoshi; Saeki, Hideya*

JAERI-Tech 2000-070, 34 Pages, 2000/12

JAERI-Tech-2000-070.pdf:5.19MB

no abstracts in English

JAEA Reports

None

*; *; ; Aoto, Kazumi

JNC-TY9400 2000-010, 138 Pages, 2000/03

JNC-TY9400-2000-010.pdf:5.15MB

None

Journal Articles

Magnetic field modification of 18GHz electron cyclotron resonance ion source at Japan Atomic Energy Research Institue

Yokota, Wataru; Saito, Yuichi; Nara, Takayuki; Ishii, Yasuyuki; Arakawa, Kazuo

Review of Scientific Instruments, 71(2), p.906 - 908, 2000/02

 Times Cited Count:1 Percentile:79.45(Instruments & Instrumentation)

no abstracts in English

Journal Articles

An Opening in mortar produced from gas evolution of aluminium

Hashizume, Shuji*; Matsumoto, Junko; Bamba, Tsunetaka

Genshiryoku Bakkuendo Kenkyu, 6(1), p.101 - 106, 1999/12

no abstracts in English

JAEA Reports

QA issues for site hydrochemical data used for groundwater evolution models

Sasamoto, Hiroshi; Yui, Mikazu; D.Savag*; Bille, B.*

JNC-TN8400 99-025, 32 Pages, 1999/06

JNC-TN8400-99-025.pdf:1.94MB

Groundwater data used for modelling site or repository evolution need to be assessed for their quality and whether they are "fit for purpose", prior to utilization. This report discuss factors and issues which impinge upon the quality of such data. It is recommended that geochemical modelleres : (1)are aware of how groundwater samples were collected, whether during drilling, during hydraulic testing, or thereafter, by in-situ measurement, pumped from boreholes, or by pressurised sampler ; (2)are aware of what procedures (if any) were used to "correct" samples for drill fluid contamination and what errors were associated with those methods ; (3)are aware of whether samples were subject to de-pressurisation during sampling, and whether geochemical modelling techniques were applied to correct the compositions of samples for that process ; (4)request different measures of redox activity (e.g., electrode measurements of Eh, concentrations of different redox-sensitive aqueous species) to be applied to key groundwater samples to investigate the extent of redox equilibrium ; (5)are aware of how groundwater samples were filtered and preserved for off-site analysis ; (6)ensure that adequate methods of groundwater filtration ($$<$$ 0.1$$mu$$m) and chemical analysis are applied to ensure accurate and reproducible analyses for dissolved aluminum at low levels of concentration (generally less than 0.2 mg/L) ; (7)are aware of elemental errors and detection limits in chemical analysis of groundwater samples and assess the quality of groundwater analyses via ion exchange balances and via a comparison of measured and calculated values for total dissolved solids contents. (8)ensure that detailed mineralogical analysis is carried out on rock samples from locations where key groundwater samples have been extracted.

Journal Articles

Effect of direct contact with iron on gas evolution behavior of aluminum

Hashizume, Shuji; Matsumoto, Junko; Bamba, Tsunetaka

Genshiryoku Bakkuendo Kenkyu, 5(1), p.45 - 49, 1998/08

no abstracts in English

112 (Records 1-20 displayed on this page)