技術情報とプレゼンテーション

Introduction In recent years there has been a focus on using topology optimization in the field of acoustics [1,2], whereas previously the technique has been applied mostly within structural mechanics, thermodynamics, and fluid dynamics [3]. This paper describes the mathematical basis ... 詳細を見る

The present author’s specialty is Aerodynamics, a field in which problems in unbounded fluid domains are common. The COMSOL Multiphysics® simulation software's support of Infinite Elements is attractive as a tool for addressing such problems. Be that as it may, neither the COMSOL ... 詳細を見る

Introduction: Keratin protein biomaterials (KTN) are used in various tissue engineering applications including liquid infusions and gel implants. Random movement of molecular species is characterized by Fick’s laws of diffusion (and velocity-dependent convection) with the ... 詳細を見る

Introduction: Design of a thermally driven actuator used in Micro Electro Mechanical Systems (MEMS) with two different metal materials is discussed. To achieve best performance of the thermally driven actuator in this work, it is desired to use a metal material with both high coefficient ... 詳細を見る

Determining an optimal port profile for a vented loudspeaker is still an unsolved problem. Studies that measured distortion content suggest a gently flared port is best, while subjective listening tests suggest that more aggressive flare rates are optimal at low to moderate levels, but ... 詳細を見る

Disciplines such as neutron polarimetry and medical imaging depend on highly uniform magnetic fields to preserve target polarization, and have turned to "magic boxes" to reliably generate these fields. Searches for the permanent Electric Dipole Moment of the neutron (nEDM) are sensitive ... 詳細を見る

通讯作者：衡益，邮箱：hengyi@mail.sysu.edu.cn 热传导反问题已广泛应用于如航空航天工程、机械加工、化学工程、冶金等工程领域。数学不适定性使其很难快速稳定求解。我们近年来进行了一系列相关研究[1-5]。与传统的基于优化的方法不同，本工作针对薄板上三维瞬态热传导反问题，即通过薄板加热面上的温度测量信息估算上表面的瞬态热流分布，提出了两步直接法。基本思路是通过重构Dirichlet边界条件将该反问题转化为易于求解的正问题，以获得近似解。此外，我们提出了基于后验误差的时空自适应网格细化离散策略进一步提高计算效率。本工作采用COMSOL ... 詳細を見る

To receive a stable quality in the injection molding process in the view of mechanically and thermally highly stressed components made by reactive resin systems, it is necessary to understand the material state along the processing chain. Up to date no measuring technology is available ... 詳細を見る

We report the reversible thermoelectric switching [1, 2, 3] induced by a time dependent and frequency domain electric field (or AC voltage) in a microscopic single contact nano-device based on Gold and Vanadium Oxide, which promises potential applications for future information storage ... 詳細を見る

Introduction Computer science has become siginificant tool for design, research and development in many industries and universities. On high-level simulation area such as multiphysics simulation area where many physics are coupled, in general, only professionals could handle such state ... 詳細を見る