全部文献期刊会议图书|学者科研项目
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作者:Takahiro Murashima , Mitsutaka Miyamoto
来源:[J].Journal of Nuclear Materials(IF 1.211), 2015, Vol.463, pp.109-115
摘要:Abstract(#br)The generation of tungsten fuzzy nanostructure by exposure to helium plasma is one of the important problems for the use of tungsten material as divertor plates in nuclear fusion reactors. In the present paper, the formation mechanisms of the helium bubble and the tu...
作者:Katsumi Hagita , Takahiro Murashima
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2020, Vol.89 (2)JPS
摘要:We proposed a general method for efficiently recording trajectories of states for analyzing the time correlation functions (TCFs) A ( t ) of arbitrary quantities from short to long times, for computer simulations, to reproduce dynamic behaviors. If the quantities for TCF are...
作者:Takahiro Murashima , Hiroshi Takano
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2017, Vol.86 (12)JPS
摘要:We proposed a thinning approximation (TA) for estimation of the two-dimensional (2D) wide-angle scattering patterns from Kremer–Grest polymer melts under shear. In the TA, extra particles are inserted at the middle of bonds for fine-graining of the coarse-grained polymers. F...
作者:Takahiro Murashima , Takashi Taniguchi
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2012, Vol.81 (Suppl.A)JPS
摘要:Polymer melts exhibit flow-history-dependent behavior. To clearly show this behavior, we have investigated the flow behavior of an entangled polymer melt around two cylinders placed in tandem along the flow direction in a two-dimensional periodic system. In this system, polymer s...
作者:Takahiro Murashima , Shugo Yasuda ...
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2012, Vol.82 (1)JPS
摘要:Multiscale simulation methods have been developed based on the local stress sampling strategy and applied to three flow problems with different difficulty levels: (a) general flow problems of simple fluids, (b) parallel (one-dimensional) flow problems of polymeric liquids, and (c...
作者:Takahiro Murashima , Keigo Hijii ...
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2005, Vol.74 (5), pp.1544-1551JPS
摘要:The one dimensional S =1 XXZ model with next-nearest-neighbor interaction α and Ising-type anisotropy Δ is studied by using a numerical diagonalization technique. We discuss the ground state phase diagram of this model numerically by the twisted-boundary-condition level spec...

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