查询词典 vector potential

Based on the electromagnetic induction law, Biot-Savart law and the numerical integration arithmetic, the vector potential of the busbar was calculated and the electromotive force of the planar coil for the single phase and three-phase busbar current was deduced.

根据电磁感应定律和毕奥-萨伐尔定律，运用数值积分算法，求解出汇流排导体矢量磁位，并推导了测量单相和三相汇流排导体电流时直线型线圈的输出表达式。

We propose a kind of 3D eddy current boundary value problems in the form of two component vector potential and approve the validity the potential in some situations.

本文提出三维涡流场的双分量向量位形式的边值问题，并证明了双分量向量位在一定条件下的适用性。

From the molecular current viewpoint, the magnetic vector potential was employed to obtain the analytical the magnet field distribution expressed by complete elliptic integral for axially polarized permanent magnet ring.

从永磁体的分子电流观点出发，应用矢量磁位法，对轴向均匀充磁的永磁环，建立用完全椭回积分表示的永磁环外部空间磁势和磁场分布的解析计算表达式。

In the new model, the similar approximation can be obtained from the integral expression of vector potential and the Lorentz gauge, therefore a set of state equations like the MNA in traditional PEEC can be built.

在本文的方法中从矢量磁位的积分表达式和洛仑兹规范出发，可导出与传统PEEC模型中的改进节点法方程相应的状态方程。

Assuming that the stratons are heavy and the interaction isdominantly a pseudoscalar potential and a static vector potential,we derive the SU(4)mass splitting for mesons.

在层子质量很重的假定下，考虑相互作用是赝标势和静矢势为主，导出了介子 SU(4)质量分裂公式。

Based on the analysis of the affected extent of the neutral-point potential by every space vector on all kinds of voltage and current conditions the concept named neutral point control grade was proposed for the first time in this paper. The calculation formulas of NPCG were presented as well. Based on NPCG, a novel modulation scheme called optimized 3D space vector modulation (O3DSVM) scheme was proposed in a-b-0 coordinates based on the translation principle of axes, by which the space vectors with higher NPCG values are selected to synthesize the object vector to suppress the unbalance of the neutral-point potential.

该文通过对各种电流电压状态下每个三维空间矢量对直流中点电位的影响进行分析，提出了"中点控制度"(neutral-point control grades，NPCG)的概念，并给出了NPCG的计算公式；基于NPCG，在a-b-0坐标系下提出一种基于坐标平移原理的新型"三维矢量优化选择调制策略"(optimized 3D space vector modulation，O3DSVM)，该调制策略能优化选择NPCG值较高的矢量以合成目标矢量，从而达到最大程度控制直流中点电位偏移的目的。

Both components of the perturbed vector potential are considered in the equations, as well as the perturbation of the electrostatic potential.

方程包含了完全的电磁扰动：静电场扰动，磁场的垂直扰动和平行扰动。

In the space without any electricity the static electric field can be described not only by scalar potential ,but also by vector potential.

讨论了在无电荷存在的自由空间，不仅可以用标势描述静电场，而且可以引用矢势描述静电场。

The result is that the magnetic scalar potential method needs less time and less computer memory than the magnetic vector potential method.

结果表明，在计算精度相同的条件下，标量磁位方法比矢量磁位方法耗用较少时间，占用较少的计算机内存。

The results about the magnetic vector potential of current-carrying ring and the electric potential of uniform charged ring which are expressed by Bessel functions are further calculated and analyzed.

用Bessel函数积分对圆环电流磁矢势及均匀带电圆环电势作进一步的计算分析，引申出磁感应强度及电场强度新的级数表达式，分析讨论了所得结果。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新