JSST2021 Symposiums

Symposium1: Numerical Simulation and Visual Analytics of Nonlinear Problems

OrganizerSoichiro Ikuno (Tokyo Univ. of Tech.)
Co-organizerSatoshi Tanaka (Ritsumeikan Univ.), Koji Koyamada (Kyoto Univ.), Seiichi Koshizuka (The Univ. of Tokyo)
ObjectiveBoth the numerical simulation and the visual analytics have played an important role in the analysis of nonlinear problems arising in a wide variety of fields in science and engineering. For example, in solid-state physics, fusion engineering, and fluid dynamics, a number of high-performance numerical techniques have been proposed for solving nonlinear partial differential equations and they have contributed to the remarkable development of these fields. Moreover, visual analytics of complicated/large-sized data is indispensable for the analysis of the results obtained in numerical simulations. In this sense, the numerical simulation and the visualization should work closely together in the analysis of nonlinear problems. The aim of this symposium is to provide a forum for exchanging ideas and discussing recent developments in the numerical simulation and the visual analytics of nonlinear problems.

Symposium2: Analysis of Optical Vortex Field and Applications

OrganizerHideki Kawaguchi (Muroran Inst. of Tech.)
Co-organizerHiroaki Nakamura (NIFS)
ObjectiveOptical vortex, which is classified in topological lightwaves of the first kind, reveals its original characteristics of spiral wavefront, propagation of orbital angular momentum, and so on. Since existence of the optical vortex was pointed out in 1992, the optical vortex has been investigated actively not only from scientific viewpoints but also on applications to various research fields, for example, large capacity optical fiber communication based on orthogonality of azimuthal vortex modes, optical tweezer based on orbital angular momentum of the vortex field, and so on. In addition, the concept of the optical vortex is expanded from the optical light to other fields such as X-ray, γ-ray, milli-wave, microwave, quantum field. In this way, research activities of the optical vortex are still growing and expanding to various research area. The aim of this symposium is to provide a forum for exchanging ideas and discussing recent developments in the numerical simulation, measurement and experiment of the optical vortex.

Symposium3: Advanced Concept and Methodology in Bioscience

OrganizerTakahiro Kenmotsu (Doshisha Univ.)
Co-organizerKatsuhiko Yamaguchi (Fukushima Univ.), Susumu Fujiwara (Kyoto Inst. of Tech.)
ObjectiveMethodology based on numerical calculation including theoretical treatment in the field of bioscience has become an indispensable and been adopted to construct advanced research last decades. Here, in bioscience, we focus on research of phenomenon on self-organization and radiation effect including damage of DNA caused by radiation in this symposium, especially because they attract global attention in recent years. We consider that the self-organization constitute the core of life, and damage of DNA due to β-ray irradiation from tritiated water is attracting notice and concerned after the accident of Fukushima Daiichi nuclear power plant in 2011. The aim of this symposium is to provide a forum for exchanging ideas and developing concept and numerical methodology based on experimental results in materials and biological molecules.