JOPSS - Search Results

Journal Articles

Development of phosphate modified CAC cementitious systems with reduced water content for the immobilization of radioactive wastes

Garcia-Lodeiro, I.*; Irisawa, Keita; Meguro, Yoshihiro; Kinoshita, Hajime*

Proceedings of 15th International Congress on the Chemistry of Cement (ICCC 2019) (Internet), 10 Pages, 2019/09

The immobilization of low or intermediate-level radioactive wastes in cements is a common practise. Grout, a mixture of Portland cement and supplemental cementitious materials, is commonly used to encapsulate the wastes. However, the conventional cementing process based on portland cement has the risk of hydrogen gas generation, due to the radiolysis of the water intrinsically present in the cement matrix both in the pore solution and the hydrated products. The addition of phosphates to calcium aluminate cement (CAC) is interesting because this system sets and hardens via the acid-based reaction, between the acid phosphate solution and the basic CAC cement. Due to this different mechanism of reaction, it would be possible to generate a solid cementitious product with a reduced water content, which can be beneficial to minimize the risk of hydrogen gas generation associated with the radiolysis of water by radioactive wastes. The present study investigates the effect of water reduction on a phosphate modified CAC systems at different temperatures (35 $^{circ}$ C, 60 $^{circ}$ C, 95 $^{circ}$ C, 110 $^{circ}$ C,180 $^{circ}$ C) in the initial 7 days of curing. Experimental results indicate that these phosphate-based cements do not form the conventional CAC crystalline hydration products in the condition tested, but provide a structural integrity despite a significant amount of water loss. The results also suggest the formation of hydroxyapatite in samples cured at 95 $^{circ}$ C.

Journal Articles

Pinning property change of high-energy heavy-ion irradiated Bi $_{2}$ Sr $_{2}$ CaCu $_{2}$ O $_{8+x}$ single crystals due to thermal annealing

Ogikubo, Koji*; Nakano, M.*; Terai, Takayuki*; Yamaguchi, Kenji; Yamawaki, Michio*

Physica C, 357-360(Part.1), p.280 - 283, 2001/09

no abstracts in English

Journal Articles

Leaching tests of simulated COGEMA bituminized waste form

Nakayama, Shinichi; Akimoto, Toshiyuki; Iida, Yoshihisa; Nagano, Tetsushi

Proceedings of International Conference on Scientific Research on the Back-end of the Fuel Cycle for the 21st Century (ATALANTE 2000) (Internet), 4 Pages, 2000/00

no abstracts in English

Journal Articles

Interlayer phase correlation of the vortex system around the coupling transition in Bi $_{2}$ Sr $_{2}$ CaCu $_{2}$ Oy containing columnar defects

*; Hanaguri, T.*; *; Maeda, A.*; Sasase, Masato; Hojo, Kiichi; Steel, D. G.*; Lee, J. U.*; Hofman, D. J.*

Physical Review B, 59(17), p.11568 - 11574, 1999/00

https://doi.org/10.1103/PhysRevB.59.11568

Times Cited Count：8 Percentile：45.63(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Difficulties in vector-parallel processing of Monte Carlo codes

Higuchi, Kenji; ; Hasegawa, Yukihiro*

Nuclear Science and Engineering, 127(1), p.78 - 88, 1997/09

https://doi.org/10.13182/NSE97-A1922

Times Cited Count：1 Percentile：14.47(Nuclear Science & Technology)

no abstracts in English

Journal Articles

In-plane microwave conductivity and quasiparticle scattering rate of superconducting high-Tc cuprates

*; *; Maeda, A.*; Asaoka, Hidehito; Takei, Humihiko*; *; *; *; *; *; et al.

Journal of the Physical Society of Japan, 65(10), p.3266 - 3273, 1996/00

https://doi.org/10.1143/JPSJ.65.3266

Times Cited Count：16 Percentile：71.31(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Nonlinear meissner effect in double layered high-Tc cuprates investigated by measurement of the penetration depth

Maeda, A.*; *; *; *; *; *; *; Asaoka, Hidehito; *; *; et al.

Journal of the Physical Society of Japan, 65(11), p.3638 - 3645, 1996/00

https://doi.org/10.1143/JPSJ.65.3638

Times Cited Count：21 Percentile：75.72(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Structural properties of the copper oxide carbonate Ba $_{4}$ CaCu $_{2}$ O $_{6+delta}$ CO $_{3}$ (0)

*; *; *; *; Morii, Yukio; Shimojo, Yutaka; *

Physica C, 247, p.183 - 188, 1995/00

https://doi.org/10.1016/0921-4534(95)00183-2

Times Cited Count：11 Percentile：57.83(Physics, Applied)

no abstracts in English

Journal Articles

Parallelization of Monte Carlo code MCACE for shielding analysis and measurement of parallel efficiency on AP-1000 with 64 cell processors

; Masukawa, Fumihiro; Naito, Yoshitaka; *; *

Proc. of the Seminar on SCALE-4 and Related Modular Systems, 0, p.186 - 193, 1994/00

no abstracts in English

JAEA Reports

Speed up of MCACE, a Monte Carlo code for evaluation of shielding safety, by parallel computer, 3; Parallel computing by shared memory type parallel computer and by networked several workstations

; Onodera, Emi*; Masukawa, Fumihiro; Naito, Yoshitaka; Imawaka, Tsuneyuki*; Yoda, Yoshihisa*

JAERI-M 93-128, 50 Pages, 1993/07

JAERI-M-93-128.pdf:1.51MB

no abstracts in English

Journal Articles

Correlation between site preference, superconductivity and magnetism in Pb $_{2}$ Sr $_{2}$ Y $_{1-x}$ Ca $_{x}$ (Cu $_{1-y}$ M $_{y}$ ) $_{3}$ O $_{8}$ (M=Fe,Co,Ni,Zn,Ga)

*; *; *; *; *; *; *; Morii, Yukio; Funahashi, Satoru; *

Physica C, 211, p.409 - 420, 1993/00

https://doi.org/10.1016/0921-4534(93)90148-J

Times Cited Count：9 Percentile：49.37(Physics, Applied)

no abstracts in English

JAEA Reports

Speedup of MCACE, A Monte Carlo code for evaluation of shielding safety, by parallel computer, 2; Performance evaluation on parallel computer with 512 cells

; Masukawa, Fumihiro; Naito, Yoshitaka; Ido, Masaru*; *

JAERI-M 92-193, 62 Pages, 1992/12

JAERI-M-92-193.pdf:1.53MB

no abstracts in English

Journal Articles

Parallelization of Monte Carlo code MCACE for shielding analysis and measurement of parallel efficiency on AP-1000

Masukawa, Fumihiro; ; Naito, Yoshitaka; *; *

Proc. of the 1st Annual Users Meeting of Fujitsu Parallel Computing Research Facilities, p.P1-A-1 - P1-A-8, 1992/00

no abstracts in English

Journal Articles

Parallelization of Monte Carlo code MCACE for shielding analysis and estimation of its efficiency by simulator

; Masukawa, Fumihiro; Naito, Yoshitaka; *; Minami, Kazuyoshi*

Journal of Nuclear Science and Technology, 28(12), p.1143 - 1146, 1991/12

https://doi.org/10.3327/jnst.28.1143

no abstracts in English

Journal Articles

Parallelization of MCACE, A Monte Carlo for shielding analysis code

*; Minami, Kazuyoshi*; ; Masukawa, Fumihiro; Naito, Yoshitaka

Joho Shori Gakkai Kenkyu Hokoku, 91(61), p.25 - 32, 1991/07

no abstracts in English

Journal Articles

Electron irradiation effects on electrical properties of a Bi $_{1.4}$ Pb $_{0.6}$ Sr $_{2}$ Ca $_{2}$ Cu $_{3}$ O $_{10}$ superconductor

Shiraishi, Kensuke; ; *

Japanese Journal of Applied Physics, 30(5B), p.L894 - L897, 1991/05

https://doi.org/10.1143/JJAP.30.L894

Times Cited Count：7 Percentile：42.67(Physics, Applied)

no abstracts in English

JAEA Reports

Speedup of MCACE, a Monte Carlo code for evaluation of shielding safety, by parallel computer,(1); Paralleling of MCACE code and performance evaluation by simulator

*; ; Masukawa, Fumihiro; Naito, Yoshitaka; Minami, Kazuyoshi*

JAERI-M 91-066, 77 Pages, 1991/04

JAERI-M-91-066.pdf:1.82MB

no abstracts in English

Journal Articles

Electron-irradiation enhancement of the critical magnetization current in the Bi $_{1.4}$ Pb $_{0.6}$ Sr $_{2}$ Ca $_{2}$ Cu $_{3}$ O $_{10}$ superconductor

Shiraishi, Kensuke; ; *

Japanese Journal of Applied Physics, 30(4A), p.L578 - L581, 1991/04

https://doi.org/10.1143/JJAP.30.L578

Times Cited Count：6 Percentile：38.68(Physics, Applied)

no abstracts in English

Journal Articles

Parallelization of Monte Carlo code MCACE for shielding analysis and measurement of parallel efficiency on AP-1000 with 64 cell processors

; Masukawa, Fumihiro; Naito, Yoshitaka; *; *

Proc. of the 2nd Fujitsu-ANU CAP Workshop,1991, p.M-1 - M-8, 1991/00

no abstracts in English

Journal Articles

Effect of Lorentz force on thermally activated processes of flux lines in Bi-Sr-Ca-Cu-O film

Takamura, Saburo; Hoshiya, Taiji;

Applied Physics Letters, 56(16), p.1582 - 1584, 1990/04

https://doi.org/10.1063/1.103135

Times Cited Count：2 Percentile：17.66(Physics, Applied)

no abstracts in English

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Development of phosphate modified CAC cementitious systems with reduced water content for the immobilization of radioactive wastes

Pinning property change of high-energy heavy-ion irradiated Bi $_{2}$ Sr $_{2}$ CaCu $_{2}$ O $_{8+x}$ single crystals due to thermal annealing

Leaching tests of simulated COGEMA bituminized waste form

Interlayer phase correlation of the vortex system around the coupling transition in Bi $_{2}$ Sr $_{2}$ CaCu $_{2}$ Oy containing columnar defects

Difficulties in vector-parallel processing of Monte Carlo codes

In-plane microwave conductivity and quasiparticle scattering rate of superconducting high-Tc cuprates

Nonlinear meissner effect in double layered high-Tc cuprates investigated by measurement of the penetration depth

Structural properties of the copper oxide carbonate Ba $_{4}$ CaCu $_{2}$ O $_{6+delta}$ CO $_{3}$ (0)

Parallelization of Monte Carlo code MCACE for shielding analysis and measurement of parallel efficiency on AP-1000 with 64 cell processors

Speed up of MCACE, a Monte Carlo code for evaluation of shielding safety, by parallel computer, 3; Parallel computing by shared memory type parallel computer and by networked several workstations

Correlation between site preference, superconductivity and magnetism in Pb $_{2}$ Sr $_{2}$ Y $_{1-x}$ Ca $_{x}$ (Cu $_{1-y}$ M $_{y}$ ) $_{3}$ O $_{8}$ (M=Fe,Co,Ni,Zn,Ga)

Speedup of MCACE, A Monte Carlo code for evaluation of shielding safety, by parallel computer, 2; Performance evaluation on parallel computer with 512 cells

Parallelization of Monte Carlo code MCACE for shielding analysis and measurement of parallel efficiency on AP-1000

Parallelization of Monte Carlo code MCACE for shielding analysis and estimation of its efficiency by simulator

Parallelization of MCACE, A Monte Carlo for shielding analysis code

Electron irradiation effects on electrical properties of a Bi $_{1.4}$ Pb $_{0.6}$ Sr $_{2}$ Ca $_{2}$ Cu $_{3}$ O $_{10}$ superconductor

Speedup of MCACE, a Monte Carlo code for evaluation of shielding safety, by parallel computer,(1); Paralleling of MCACE code and performance evaluation by simulator

Electron-irradiation enhancement of the critical magnetization current in the Bi $_{1.4}$ Pb $_{0.6}$ Sr $_{2}$ Ca $_{2}$ Cu $_{3}$ O $_{10}$ superconductor

Parallelization of Monte Carlo code MCACE for shielding analysis and measurement of parallel efficiency on AP-1000 with 64 cell processors

Effect of Lorentz force on thermally activated processes of flux lines in Bi-Sr-Ca-Cu-O film