Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Suzuki, Yoshio; Kushida, Noriyuki; Teshima, Naoya; Nakajima, Kohei; Nishida, Akemi; Nakajima, Norihiro
High Performance Computing on Vector Systems 2008, p.65 - 77, 2009/00
Center for computational science and e-systems, Japan Atomic Energy Agency (CCSE/JAEA) has been carrying out R&Ds of grid computing technology since FY1995 aiming at establishing an infrastructure for the computational science research. One of them is R&D of IT-Based Laboratory (ITBL) infrastructure. The ITBL project is a national project placed as one of the e-Japan Priority Policy Program to realize the e-Japan Strategy. By succeeding the technology of ITBL infrastructure, CCSE is carrying out R&D of Atomic Energy Grid Infrastructure (AEGIS) to construct an intelligent infrastructure for the atomic energy research. CCSE has been carrying out international cooperation researches in various fields to advance computer science and to expand AEGIS grid computing environment. To achieve this, we have developed the system to construct interoperable environments between AEGIS and other grid middleware.
Kino, Chiaki; Suzuki, Yoshio; Kushida, Noriyuki; Nishida, Akemi; Hayashi, Sachiko; Nakajima, Norihiro
High Performance Computing on Vector Systems 2008, p.89 - 97, 2009/00
In a field of research for nuclear power station, large and complex data analysis is an important issue. To overcome this issue, we have been developing Cognitive methodology based Data Analysis System (CDAS) in order to support researchers to analyze large and complex data. In the present study, we cleared up a structure of data analysis consisting of analysis target, evaluation index and judgment criteria. Additionally, we proposed some computational technologies to actualize CDAS. We have applied the system to the virtual plant vibration simulator and confirmed the implementability of this system.
Itakura, Mitsuhiro; Kaburaki, Hideo; Yamaguchi, Masatake; Ebihara, Kenichi
High Performance Computing on Vector Systems 2008, p.145 - 152, 2009/00
An attempt to identify the mechanism of stress corrosion cracking by numerical simulations is presented, in which we are trying to validate a hypothetical oxygen embrittlement mechanism. This mechanism involves diffusion of oxygen and embrittlement caused by oxygen, and its simulation requires integration of oxygen diffusion model and crack growth model. This paper presents the basic framework of integrated model and some preliminary simulation results, and show that the integrated model captures the basic properties of stress corrosion cracking such as rapid increase of growth rate at critical stress and its gradual increase above the critical stress.