技術情報とプレゼンテーション

Magnetic Suspension and Balance Systems (MSBS) are a method of levitating an aerodynamic model in a wind tunnel. An unusual characteristic is that the electromagnet assemblies (outside the wind tunnel) are very large, but the levitated object (a permanent magnet core) is quite small and ... 詳細を見る

Resistance-sintering can be used in a powder metallurgy process as the heating step to consolidate a metallic compact previously obtained by pressing a powder-alloy. This fast-sintering process consolidates electrically conductive powders by simultaneous application of pressure and ... 詳細を見る

My research group began applying microchip electrophoresis to fractionation of the rare earths more than a decade ago. The electrophoretic method we applied at microscale was isotachophoresis, which has the ability to quickly concentrate samples by several orders of magnitude while ... 詳細を見る

Upon operation, the magnetron of a conventional microwave oven induces a pattern of standing electromagnetic waves in the oven cavity. Interactions with the field define the amount of energy absorbed in a part of a food object within the cavity. The well-known inhomogeneous heating ... 詳細を見る

Using COMSOL Multiphysics, a finite element model is introduced in this paper to describe the couplings between the welding arc and the weld pool dynamic in pulsed gas tungsten arc welding. The cathode, arc-plasma and melting anode regions are taken into account. The unified time ... 詳細を見る

Transformers, as any other industrial products, have to comply with various requirements on noise levels. Three main sources of noise can be identified in transformers: no-load noise or core noise generated by magnetostriction in the core steel laminations, load noise produced by ... 詳細を見る

Recently, the concepts of fractal geometry have been introduced into electromagnetic and plasmonic metamaterials. With their self-similarity, structures based on fractal geometry should exhibit multi-band character with high Q factors due to the scaling law. However, there exist few ... 詳細を見る

High temperature super conducting (HTS) cables are gaining attentions for their ability to transmit more power compared to their convention counterparts with essentially no resistance and electromagnetic emissions. They are also appropriate for solving the grid congestion problem in the ... 詳細を見る

随着碳纤维增强复合材料(CFRP)在航空等领域的应用规模逐渐扩大，其低电导率带来的雷击风险得到广泛关注，CFRP雷击防护设计已成为研究热点，而雷电环境多理场仿真技术也在CFRP雷击防护设计中逐步发挥作用。目前，针对含雷击防护（如铺设防雷金属网）的CFRP平板结构雷击直接效应仿真研究已有一定成果，但是，对于铺设防雷金属网的CFRP-金属紧固件连接结构的雷击仿真鲜有研究。 本研究以铺设防雷金属网的CFRP-金属紧固件连接结构为研究对象，借助COMSOL Multiphysics重点分析了连接结构遭受雷击时的电-热多物理场效应。 ... 詳細を見る

Exciting plasma in inductive mode is attractive due to the high electron density and the absence of ion interaction with the reactor walls. However, any real system excites plasma at low power in capacitive mode with strong interaction with the walls. The transition from one mode to the ... 詳細を見る