78 citations
- Kyushu UniversityJP6 papers
- Bhabha Atomic Research CentreIN4 papers
- S.N. Bose National Centre for Basic SciencesIN3 papers
- Indian Institute of Science BangaloreIN2 papers
- Indian Institute of Science Education and Research, BhopalIN2 papers
- Indian Institute of Science Education and Research PuneIN2 papers
- Indian Institute of Technology KharagpurIN2 papers
- Tel Aviv UniversityIL2 papers
- UGC DAE Consortium for Scientific ResearchIN2 papers
- University of TarapacáCL2 papers
- Aarhus UniversityDK1 paper
- Helmholtz Institute Erlangen-NürnbergDE1 paper
5 papers · 1 filter
Self-Organized Criticality of Domain Walls and Magnetization Curve
Hidetsugu Sakaguchi, Yue Zhao
We propose a kind of Ginzburg--Landau equation with quenched randomness. There is a pinning--depinning transition in the system when the external magnetic force is changed. The tra…
Solitary wave state in the nonlinear Kramers equation for self-propelled particles
Hidetsugu Sakaguchi, Kazuya Ishibashi
We study collective phenomena of self-propagating particles using the nonlinear Kramers equation. A solitary wave state appears from an instability of the spatially uniform ordered…
Slip-Size Distribution and Self-Organized Criticality in Block-Spring Models with Quenched Randomness
Hidetsugu Sakaguchi, Shuntaro Kadowaki
We study slowly pulling block-spring models in random media. Second-order phase transitions exist in a model pulled by a constant force in the case of velocity-strengthening fricti…
Numerical Simulation of Three-Dimensional Dendrites using Coupled Map Lattices
Hidetsugu Sakaguchi, Mai Gondou, Haruo Honjo
Three dimensional dendrites are studied with a coupled map lattice model. We study the fractal dimensions, the f(α) spectrum, the size distribution of sidebranches, and the envelop…
High yield production of defect less carbon nanotubes in an arc process
Soumen Karmakar, Naveen V. Kulkarni, V. G. Sathe +4
An efficient modified arc plasma method, where a focusing electric field is superimposed on the arc electric field, is optimized for the bulk generation of highly pure multi-walled…