The problem of current-density distribution over the surface of a microstrip dipole antenna conformally arranged on a dielectric cylinder is reduced to a singular integral equation with a Cauchy kernel. Patterns of current distribution on the antenna surface for various values of dielectric permittivity...
Schro¨dinger equation for current carrying states. 来自 EBSCO 喜欢 0 阅读量: 41 作者:Kosov,D.,S.摘要: Schrödinger equation with given, a priori known current is formulated. A nonzero current density is maintained in the quantum system via a subsidiary condition imposed by vector, local ...
11. The measurements were correlated with the Tait-type equation for density and the Hard-sphere scheme for viscosity. 利用得到的实验数据,分别拟合了碳酸二乙酯黏度和密度方程。 12. Introducing mass density allows the equation to be simp... ...
(*** MSc course only ***) The Navier-Stokes equation for a constant-density fluid may be written u i (u i u j ) 1 p + + 2ui = t xi x j Velocity depends on the pressure gradient. Taking the divergence (i.e. / xi) and using continuity ( ui/ xi = 0) gives 2 (u i u...
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The negative sign is necessary for the right-hand side because the fluid density increases in the case where fluid flows in, while it decreases when fluid flows out. If Eq. (2.6) is not satisfied completely, some part of the fluid mass is lost, or the fluid mass is increased. Therefore...
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Present theories of giant magnetoresistance (GMR) for current perpendicular to the planes (CPP) are based on an extremely restricted solution to the Boltzmann equation that assumes a single free electron band structure for all layers and all spin channels. Within this model only the scattering rate...
However, a reduced set of equations of motion can be obtained by integrating out certain degrees of freedom, much in the same way as the single-mode model for current-driven spin-wave excitations described in the previous sections. One useful approach involves the assumption that the dynamics ...
we introduce the density and flux of Fisher information for general types of wave fields and identify the corresponding sources and sinks of information through which all these new quantities satisfy a fundamental continuity equation. We experimentally verify our theoretical predictions by studying a mova...