T
Tomotsugu Shimokawa
Researcher at Kanazawa University
Publications - 73
Citations - 1049
Tomotsugu Shimokawa is an academic researcher from Kanazawa University. The author has contributed to research in topics: Grain boundary & Dislocation. The author has an hindex of 16, co-authored 64 publications receiving 895 citations. Previous affiliations of Tomotsugu Shimokawa include Technical University of Denmark & Osaka University.
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Matching conditions in the quasicontinuum method: Removal of the error introduced at the interface between the coarse-grained and fully atomistic region
Tomotsugu Shimokawa,Tomotsugu Shimokawa,Tomotsugu Shimokawa,Jens Jørgen Mortensen,Jakob Schiøtz,Karsten Wedel Jacobsen +5 more
TL;DR: The quasicontinuum method as mentioned in this paper reduces the number of degrees of freedom in an atomistic simulation by removing the majority of the atoms in regions of slowly varying strain fields, which is applicable to short-ranged potentials in the face centered cubic, body-centered cubic, and hexagonal close packed crystal structures.
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Grain-size dependence of the relationship between intergranular and intragranular deformation of nanocrystalline Al by molecular dynamics simulations
TL;DR: In this paper, the strength of nanocrystalline aluminum has been studied using molecular dynamics simulation and a transition from grain size hardening to grain-size softening can be observed in the region where the thickness of the grain boundaries cannot be neglected in comparison to the grain sizes.
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Time-scale matching in the response of a leaky integrate-and-fire neuron model to periodic stimulus with additive noise
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Stochastic resonance and spike-timing precision in an ensemble of leaky integrate and fire neuron models
TL;DR: It is shown that firing precision in response to subthreshold stimulation is maximized at some intermediate noise value, and it is argued that in this regime the ensemble can reliably transmit fast periodic signals below the resolution of the individual units.
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Interaction mechanism between edge dislocations and asymmetrical tilt grain boundaries investigated via quasicontinuum simulations
TL;DR: In this article, the effects of the interaction between dislocations and grain boundaries on the mechanical properties of coarse-grained metals with dislocation sources in their grain and on those of nanocrystalline metals with no sources in the grain are discussed.