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COMSOL Conference 2024 論文集を見る
Metamaterials are a new class of artificial materials, which possess various unusual properties. One of these properties is a negative index of refraction produced by setting both the dielectric permittivity ε and the magnetic permeability μ of the material less than zero. Unique ... 詳細を見る
Recently, the researchers usually use the hydrodynamic Drude model (HDM) to investigate the nonlocal optical response of metallic nanostructure. The advantage of the HDM is easy to implement numerical calculation for larger and more complex-shaped nanoplasmonic structures. For the HDM, ... 詳細を見る
Cerebral vasospasm is a complication of subarachnoid hemorrhage and other neurosurgical emergencies that reduce blood flow to the brain. Part of the approach to management of vasospasm is to improve flow through the stenotic areas by reducing by decreasing blood viscosity and enhancing ... 詳細を見る
High power Terahertz (THz) sources have become a topic of great interest for a wide variety of applications from medical science to security systems and from material science to telecommunication. The high output power of these THz sources mainly depends upon high current density and ... 詳細を見る
COMSOL Multiphysics® can play a crucial role in jumpstarting undergraduate research programs in physics and engineering at colleges with limited financial support and small faculty size. The engineering physics program at Ramapo College of NJ has 48 majors and 4 full time faculty with ... 詳細を見る
Dr. Ivar Kjelberg is Senior Project Manager for Mechatronics in the Systems Engineering Division of CSEM SA in Neuchâtel, Switzerland. He obtained the diploma as \"Ingénieur Physicien\" from the Ecole Polytechnique Fédéreale EPFL in Lausanne, Switzerland in 1979, and a PhD at the local ... 詳細を見る
Inductively coupled plasmas (ICP) are largely used as a convenient way to produce large ion currents in industrial applications and for particle accelerators and for the Neutral Beam Injectors (NBI) envisioned for tokamak heating (ITER project and beyond). Among specifications we have ... 詳細を見る
线板电极结构是电晕放电装置中一种常见的结构，但是其电晕放电的发展过程却一直不清楚。本文利用comsol中的等离子化学模块，对大气压条件下空气介质中线板电极的负电晕放电发展过程进行了仿真研究。在仿真模型中，高压电极为线电极，板电极为地电极，模型包含了12中粒子之间的26种反应，其涵盖了典型的弹性碰撞，碰撞电离，电荷转移，复合反应，附和与解离反应。最终的仿真结果显示，在电晕放电发展初期存在一个脉动过程，等离子体以脉冲的形式向地电极扩展。当电晕处于稳态时，在高压电极处是以O4+为主的阳离子，在远离高压电极处的地方以O2-及O-等阴离子为主 ... 詳細を見る
The ITER-ECE transmission lines consist of smooth-wall circular waveguides, including miter bends and other components. The performance of the TL is crucial to ensuring that the requirements for the diagnostic to measure the plasma parameters are met. COMSOL Multiphysics® has a finite ... 詳細を見る
Streamers are considered as main cause of electrical breakdown in air at atmospheric pressure. A streamer is an ionization wave propagating in neutral gas which is converted into low-temperature plasma behind its front. A streamer model is based on drift-diffusion approach where space ... 詳細を見る