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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Numerical method for low-frequency electromagnetic fields and its applications
低频 电磁场数值 低频涡流场 有限元编程
2023/4/13
本报告首先回顾传统低频涡流场的两种计算格式，指出有限元编程实现过程中的基函数选择以及需要注意的难点问题。第二部分针对静磁场问题，通过引入规范条件提出了一种基于矢量磁位和磁场强度的新型的对偶格式，该方法通过巧妙构造基于矢量磁位和磁场强度的计算格式，整体矩阵完全一致并且可以给出系统电感参数的上下界，在实际参数提取中有很好的应用前景。在第三部分，由于传统低频涡流场近似不能有效考虑分布电容效应，而传统高频...
THE LOW-FREQUENCY ELECTRIC FIELDS INDUCED IN A SPHERICAL CELL INCLUDING ITS NUCLEUS
LOW-FREQUENCY ELECTRIC FIELDS INDUCED SPHERICAL CELL NUCLEUS
2015/10/16
After a review of work leading to the determination of the electric field induced in the human body when exposed to the electromagnetic field near an extremely-low-frequency high-voltage transmission ...
Characterisation of Low Frequency Gravitational Waves from Dual RF Coaxial-Cable Detector: Fractal Textured Dynamical 3-Space
Low Frequency Gravitational Waves Dual RF Coaxial-Cable Detector Fractal Textured Dynamical 3-Space
2012/5/17
Experiments have revealed that the Fresnel drag effect is not present in RF coaxial cables, contrary to a previous report. This enables a very sensitive, robust and compact detector, that is 1st order...
Improved accuracy of the NPL-CsF2 primary frequency standard: evaluation of distributed cavity phase and microwave lensing frequency shifts
NPL-CsF2 primary frequency standard cavity phase microwave lensing frequency shifts
2011/8/17
Abstract: We evaluate the distributed cavity phase and microwave lensing frequency shifts, which were the two largest sources of uncertainty for the NPL-CsF2 cesium fountain clock. We report measureme...
Influence of high frequency and moderate energy pulses on DLC deposition onto metallic substrates by magnetron sputtering technique
diamond-like carbon corrosion implantation surface characterization
2010/7/5
The deposition of Diamond-like carbon (DLC) films brings excellent mechanical, chemical, optical and electronic
properties to a large range of materials. However, a problem to be overcome is its poor...
We present an all fiber source of frequency entangled photon pairs by using four wave mixing in a Sagnac fiber loop. Special care is taken to suppress the impurity of the frequency entanglement by coo...
Frequency-Locking in Coupled Chaotic Systems
frequency-locking
mean frequency hyperchaotic system
2007/8/15
2001Vol.35No.4pp.425-430DOI:
Frequency-Locking in Coupled Chaotic Systems
HU Bam-Bi,1,4 LIU Zong-Hua1,2 and ZHENG Zhi-Gang1,3
1 Center for Nonlinear Studies and Departme...
Optical Solitary Waves in Fourth-Order Dispersive Nonlinear
Schrödinger Equation with Self-steepening and Self-frequency Shift
fourth-order dispersive nonlinear Schrö dinger equation bright optical
solitary wave dark optical solitary wave
2007/8/15
2006Vol.45No.4pp.721-726DOI:
Optical Solitary Waves in Fourth-Order Dispersive Nonlinear
Schrödinger Equation with Self-steepening and Self-frequency Shift
ZONG Feng-De, DAI...
Renormalization Group Study of Ising
Transition in Double-Frequency sine-Gordon Model
Ising criticality renormalization group
2007/8/15
2003Vol.40No.2pp.169-170DOI:
Renormalization Group Study of Ising
Transition in Double-Frequency sine-Gordon Model
YE Fei, DING Guo-Hui, and XU Bo-Wei
Department of Phys...
Variable Frequency Harmonic Oscillator in an Electromagnetic Field
invariant propagator canonical transformation phase space
path integral variable frequency harmonic oscillator
2007/8/15
2004Vol.41No.1pp.45-47DOI:
Variable Frequency Harmonic Oscillator in an Electromagnetic Field
HUANG Bo-Wen,1 WANG
Jing-Shan,2 GU
Zhi-Yu,1 and
QIAN Shang-Wu3
1 Physics...