Refine your search:     
Report No.
 - 
Search Results: Records 1-16 displayed on this page of 16
  • 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

Carbonated nanohydroxyapatite from bone waste and its potential as a super adsorbent for removal of toxic ions

Sekine, Yurina; Nankawa, Takuya; Yamada, Teppei*; Matsumura, Daiju; Nemoto, Yoshihiro*; Takeguchi, Masaki*; Sugita, Tsuyoshi; Shimoyama, Iwao; Kozai, Naofumi; Morooka, Satoshi

Journal of Environmental Chemical Engineering, 9(2), p.105114_1 - 105114_12, 2021/04

 Times Cited Count:0 Percentile:0(Engineering, Environmental)

Remediating toxic ion contamination is crucial for protecting human health and the environment. This study aimed to provide a powerful strategy for effectively utilizing bone waste from the food production and preparation industries for removal of toxic ions. Here, we show that immersing pig bone in NaHCO$$_{3}$$ solution produced a carbonated nanohydroxyapatites (C-NHAP). The C-NHAP exhibited high adsorptivity for Sr$$^{2+}$$, Cd$$^{2+}$$, Pb$$^{2+}$$, and Cu$$^{2+}$$. The strontium adsorptivity was about 250 and 4,500 times higher than that of normal bone and synthetic HAP, respectively. The C-NHAP is an eco-friendly, high-performance material that is simple to prepare and should be useful for tackling problems of food waste disposal and environmental pollution.

Journal Articles

Study on loss-of-cooling and loss-of-coolant accidents in spent fuel pool; Confirmation of fuel temperature calculation function with oxidation reaction in the SAMPSON code

Suzuki, Hiroaki*; Morita, Yoshihiro*; Naito, Masanori*; Nemoto, Yoshiyuki; Kaji, Yoshiyuki

Mechanical Engineering Journal (Internet), 7(3), p.19-00450_1 - 19-00450_17, 2020/06

In this study, the SAMPSON code was modified to evaluate severe accidents in a spent fuel pool (SFP). Air oxidation models based on oxidation data obtained on the Zircaroy-4 cladding (ANL model) and the Zircaroy-2 cladding (JAEA model) were included in the modified SAMPSON code. Experiments done by Sandia National Laboratory using simulated fuel assemblies equivalent to those of an actual BWR plant were analyzed by the modified SAMPSON code to confirm the functions for analysis of the severe SFP accidents. The rapid fuel rod temperature rise due to the Zr air oxidation reaction could be reasonably evaluated by the SAMPSON analysis. The SFP accident analyses were conducted with different initial water levels which were no water, water level at bottom of active fuel, and water level at half of active fuel. The present analysis showed that the earliest temperature rise of the fuel rod surface occurred when there was no water in the SFP and natural circulation of air became possible.

Journal Articles

Study on loss-of-cooling and loss-of-coolant accidents in spent fuel pool, 6; Analysis on oxidation behavior of fuel cladding tubes by the SAMPSON code

Morita, Yoshihiro*; Suzuki, Hiroaki*; Naito, Masanori*; Nemoto, Yoshiyuki; Kaji, Yoshiyuki

Proceedings of 27th International Conference on Nuclear Engineering (ICONE-27) (Internet), 9 Pages, 2019/05

In this study, the SAMPSON code was modified to evaluate severe accidents in a spent fuel pool (SFP). Not only the SFP but also upper spaces of the SFP, walls of the reactor building, and the blowout panel were included. Air oxidation models obtained by the Zircaroy-4 cladding (ANL model) and the Zircaroy-2 cladding (JAEA model) were included in the modified SAMPSON code. Experiments done by Sandia National Laboratory using simulated fuel assemblies equivalent to those of an actual BWR plant were analyzed by the modified SAMPSON code to confirm the functions for analysis of the severe SFP accidents.

Journal Articles

Study on loss-of-cooling and loss-of-coolant accidents in spent fuel pool, 7; Analysis on effectiveness of spray cooling by the SAMPSON code

Suzuki, Hiroaki*; Morita, Yoshihiro*; Naito, Masanori*; Nemoto, Yoshiyuki; Nagatake, Taku; Kaji, Yoshiyuki

Proceedings of 27th International Conference on Nuclear Engineering (ICONE-27) (Internet), 7 Pages, 2019/05

In this paper, modification of the SAMPSON code was carried out to enable the analysis of spray cooling. The SAMPSON analysis of a spray cooling experiment was performed to confirm reproducibility of spray cooling behavior of fuel claddings. The modified SAMPSON code was applied to a hypothetical loss-of-coolant accident analysis of the SFP. Effectiveness of spray cooling on cladding temperature behavior was investigated. The SAMPSON analysis showed that spraying from the top of the SFP was effective for cooling the fuel assemblies exposed to the gas phase.

JAEA Reports

Nuclear Facilities Management Section Mutsu Office, Aomori Research and Development Center operations report; FY 2012&2013

Tajima, Yoshihiro; Kuwabara, Jun; Oyokawa, Atsushi; Kabuto, Shoji; Araya, Naoyuki; Kikuchi, Kaoru; Miyamoto, Shingo; Nemoto, Hideyuki; Oe, Osamu

JAEA-Review 2016-003, 56 Pages, 2016/05

JAEA-Review-2016-003.pdf:7.16MB

Nuclear Facilities Management Section implements the operation, maintenance and decommissioning of the first nuclear ship "MUTSU" and the operation and maintenance of the liquid waste facility and the solid waste facility where a small amount of nuclear fuel is used. This is the report on the operations of the Nuclear Facilities Management Section for FY 2012 and FY 2013.

Journal Articles

A Study on optimum irradiation dose of $$gamma$$-ray and carbon ion beams in grain amaranth

Nemoto, Kazuhiro*; Tsurukawa, Akiko*; Minami, Mineo*; Matsushima, Kenichi*; Hase, Yoshihiro

JAEA-Review 2014-050, JAEA Takasaki Annual Report 2013, P. 112, 2015/03

no abstracts in English

Journal Articles

Application of the two-electron transfer reaction to helium ion density and energy distribution measurements in JT-60

Tobita, Kenji; Kusama, Yoshinori; Nakamura, Hiroo; Ito, Takao; Tsukahara, Yoshimitsu; Nemoto, Masahiro; Kubo, Hirotaka; Takeuchi, Hiroshi; Kuriyama, Masaaki; Matsuoka, Mamoru; et al.

Nuclear Fusion, 31(5), p.956 - 960, 1991/00

 Times Cited Count:6 Percentile:36.19(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Measurements of neutral beam stopping for hydrogen and helium in JT-60 plasma

Tobita, Kenji; Ito, Takao; Sakasai, Akira; Kusama, Yoshinori; Ohara, Yoshihiro; Tsukahara, Yoshimitsu; Nemoto, Masahiro; Kawano, Yasunori; Kubo, Hirotaka; Takeuchi, Hiroshi; et al.

Plasma Physics and Controlled Fusion, 32(6), p.429 - 441, 1990/00

 Times Cited Count:13 Percentile:46.53(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Calibration of active beam scattering system and its application of JT-60

Tobita, Kenji; Kusama, Yoshinori; Nemoto, Masahiro; Takeuchi, Hiroshi; Ito, Takao; Tsukahara, Yoshimitsu; Shitomi, Morimasa; Watanabe, Kazuhiro; Ohara, Yoshihiro

Kaku Yugo Kenkyu, 59(SPECIAL ISSUE), p.139 - 156, 1988/00

no abstracts in English

Oral presentation

Development of reactivity feedback effect measurement techniques under sub-critical condition in fast reactor, 1-5; FCA experimental plan

Fukushima, Masahiro; Okajima, Shigeaki; Kitamura, Yasunori; Ando, Masaki; Yamane, Tsuyoshi; Mori, Takamasa; Nishi, Hiroshi; Yamane, Yoshihiro*; Kanemoto, Shigeru*

no journal, , 

no abstracts in English

Oral presentation

Development of reactivity feedback effect measurement techniques under sub-critical condition in fast reactor, 1-1; Purpose and program

Okajima, Shigeaki; Nishi, Hiroshi; Yamane, Yoshihiro*; Kanemoto, Shigeru*; Yamane, Tsuyoshi; Mori, Takamasa; Kitamura, Yasunori; Fukushima, Masahiro; Kitano, Akihiro; Ando, Masaki; et al.

no journal, , 

The program was planned and has been carried out to develop of the reactivity feedback effect measurement techniques under sub-critical condition in the start-up experiment for fast reactors. The program includes the demonstration of the developed technique in fast critical assembly (FCA) and the proposal of the appropriate measurement system based on the results. The background and the purposes of the program and the outline of development subjects are presented.

Oral presentation

Development of reactivity feedback effect measurement techniques under sub-critical condition in fast reactor, 2-1; Skelton of program

Okajima, Shigeaki; Nishi, Hiroshi; Kanemoto, Shigeru*; Yamane, Yoshihiro*; Fukushima, Masahiro; Kitamura, Yasunori; Kitano, Akihiro; Suzuki, Takayuki; Ando, Masaki; Yamane, Tsuyoshi

no journal, , 

no abstracts in English

Oral presentation

Evaluation of Cesium accumulating ability in M2 generation of Amaranthus irradiated with ion beams

Nemoto, Kazuhiro*; Minami, Mineo*; Matsushima, Kenichi*; Tsurukawa, Akiko*; Kinoshita, Junichi*; Hase, Yoshihiro

no journal, , 

no abstracts in English

Oral presentation

Study on improvement of safety for accident conditions in spent fuel pool, 5; Loss of coolant accident analysis by SAMPSON code

Morita, Yoshihiro*; Suzuki, Hiroaki*; Naito, Masanori*; Kaji, Yoshiyuki; Nemoto, Yoshiyuki

no journal, , 

We conducted the preliminary analysis for the phenomenon of loss of coolant in Spent Fuel Pool by MAAP code and reported the analytical results for temperature and relocation behavior of spent fuel channels.

Oral presentation

Study on improvement of safety for accident conditions in spent fuel pool, 12; Loss of coolant accident analysis by improved SAMPSON code

Morita, Yoshihiro*; Suzuki, Hiroaki*; Naito, Masanori*; Nemoto, Yoshiyuki; Kaji, Yoshiyuki

no journal, , 

A new model including the spent fuel pool (SFP) or Zr oxidation behavior which is necessary to evaluate the SFP accident caused by cooling function loss was developed and implanted in the severe accident code SAMPSON in this work. Results of the evaluation using the improved code will be presented.

Oral presentation

Study on improvement of safety for accident conditions in spent fuel pool, 27; Improvement of SAMPSON code and evaluation of cooling characteristics of SFP spray

Suzuki, Hiroaki*; Morita, Yoshihiro*; Naito, Masanori*; Kaji, Yoshiyuki; Nemoto, Yoshiyuki

no journal, , 

Severe accident code SAMPSON was upgraded by introducing the models of Zr oxidation in air, and spray cooling, etc, in this study. Analytical results on spent fuel pool (SFP) accident were obtained and effectiveness of the spray cooling system for the safety measure of the SFP was discussed in this study.

16 (Records 1-16 displayed on this page)
  • 1