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地震电磁信息的偶电体模型 被引量:23
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作者 包德修 和仁道 +2 位作者 马伟林 张雄 陈立德 《中国地震》 CSCD 北大核心 1991年第4期83-86,共4页
本文将产生地震电磁信息的源归结为依时而变的偶电体。将偶电体激发的场视为由遵从不同规律的三类场型即准静场、感应场、辐射场迭加而成。进而讨论了同一台站不同频段观测到的地震电磁信息,可能属于不同的场型,从而为理论上分别计算这... 本文将产生地震电磁信息的源归结为依时而变的偶电体。将偶电体激发的场视为由遵从不同规律的三类场型即准静场、感应场、辐射场迭加而成。进而讨论了同一台站不同频段观测到的地震电磁信息,可能属于不同的场型,从而为理论上分别计算这三类场型提供了依据。 展开更多
关键词 地震 磁信息 偶电体 模型
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Exact solutions for different vorticity functions of couple stress fluids
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作者 Saeed ISLAM Chao-ying ZHOU Xiao-juan RAN 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2008年第5期672-680,共9页
In this paper, inverse solutions are obtained for the class of 2D steady incompressible couple stress fluid flows. This class consists of flows for which the vorticity distribution is given by ▽2ψ=ψ+f(x,y). The so... In this paper, inverse solutions are obtained for the class of 2D steady incompressible couple stress fluid flows. This class consists of flows for which the vorticity distribution is given by ▽2ψ=ψ+f(x,y). The solutions are obtained by applying the inverse method, which makes certain hypotheses regarding the form of the velocity field and pressure but without making any regarding the boundaries of the domain occupied by the fluid. Inverse solutions are derived for three different forms of f(x,y). 展开更多
关键词 Exact solutions Vorticity functions Beltrami flow Couple stress fluid
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Analytical Solutions of Electromagnetic Fields from Current Dipole Moment on Spherical Conductor in a Low-Frequency Approximation
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作者 Taishi Okita Toshiyuki Takagi 《Communications in Theoretical Physics》 SCIE CAS CSCD 2010年第1期149-155,共7页
We analytically derive the solutions for electromagnetic fields of electric current dipole moment, which is placed in the exterior of the spherical homogeneous conductor, and is pointed along the radial direction. The... We analytically derive the solutions for electromagnetic fields of electric current dipole moment, which is placed in the exterior of the spherical homogeneous conductor, and is pointed along the radial direction. The dipole moment is driven in the low frequency f = 1 kHz and high frequency f = 1 GHz regimes. The electrical properties of the conductor are appropriately chosen in each frequency. Electromagnetic fields are rigorously formulated at an arbitrary point in a spherical geometry, in which the magnetic vector potential is straightforwardly given by the Biot- Savart formula, and the scalar potential is expanded with the Legendre polynomials, taking into account the appropriate boundary conditions at the spherical surface of the conductor. The induced electric fields are numerically calculated along the several paths in the low and high frequeny excitation. The self-consistent solutions obtained in this work will be of much importance in a wide region of electromagnetic induction problems. 展开更多
关键词 EDDY magnetic INDUCTION
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Canonical transient receptor potential 4 and its small molecule modulators 被引量:4
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作者 FU Jie GAO ZhaoBing +1 位作者 SHEN Bing ZHU Michael X. 《Science China(Life Sciences)》 SCIE CAS CSCD 2015年第1期39-47,共9页
Canonical transient receptor potential 4(TRPC4) forms non-selective cation channels that contribute to phospholipase C-dependent Ca2+ entry into cells following stimulation of G protein coupled receptors and receptor ... Canonical transient receptor potential 4(TRPC4) forms non-selective cation channels that contribute to phospholipase C-dependent Ca2+ entry into cells following stimulation of G protein coupled receptors and receptor tyrosine kinases.Moreover,the channels are regulated by pertussis toxin-sensitive Gi/o proteins,lipids,and various other signaling mechanisms.TRPC4-containing channels participate in the regulation of a variety of physiological functions,including excitability of both gastrointestinal smooth muscles and brain neurons.This review is to present recent advances in the understanding of physiology and development of small molecular modulators of TRPC4 channels. 展开更多
关键词 TRPC4 channel non-selective cation channel G protein coupled receptors small molecular modulators G proteins EXCITATION CONTRACTION Ca2+ signaling
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