查询词典 electromagnetic

But due to the difficulties of the theoretical calculation and the limitation of the technique of image display, only some two-dimensional graphs of electromagnetic field of a planar set of point charges or symmetrically and uniformly charged bodies, which ignores the boundary effect, are introduced in the present electromagnetics teaching materials.

然而，由于受理论计算和图象显示技术等因素的限制，目前的电磁学教材中，通常只能给出平面分布的点电荷系或具有较强对称性、忽略边界效应的带电体的电力线和等势线的二维平面图。

To study the application of plasma in techniques of screening, a model simulating slanting the incidence of plane electromagnetic wave into plasma slabs with metal underlay is adopted.

研究等离子体在隐身技术中的应用。

These systems include neutral particles with general spin and magnetic moment moving in an arbitrarily varying uniform magnetic field or in the field of a circularly polarized electromagnetic plane wave, the generalized time-dependent harmonic oscillator, and Heisenberg model in a rotating magnetic field.

包括具有一般自旋和磁矩的中性粒子在任意时变均匀磁场中的运动、在圆偏振平面电磁波场中的运动，一般含时谐振子体系，旋转磁场中的 Heisenberg 模型等。

Surface plasmon resonances of two-dimensional gold nanoparticles under the electrical dipole source and plane electromagnetic wave(magnetic polarized in z-direction) are investigated.

根据Maxwell电磁理论，探讨无限域中二维细杆形金奈米粒子受到磁场在轴方向极化之平面电磁波与电偶极波源所造成的表面电浆子现象。

He Maxwell equations for the propagation of electromagnetic waves in photonic crystal fibers are solved with plane wave method.

用平面波展开法对光子晶体光纤中电磁场的Maxwell方程组进行了求解。

Plane electromagnetic wave numerical analysis and simulation, including six models.

详细说明：平面电磁波的数值分析与仿真，包含6个模型。

Secondly, on the basis of electromagnetic theory, we have described the characteristics of surface plasmon wave and its exciting configuration.

其次，我们从电磁学基本理论出发，描述了表面等离子波的特殊性质以及产生表面等离子波的激发结构。

Through these analyses, the transfer function of the single degree of freedom electromagnetic model is established by linearization at the equilibrium point, and the state equation of the magnetic north-seeking system in low rotating speed is derived consequently.

由于磁悬浮系统具有开环不稳定和强烈非线性的特点，使得对磁悬浮寻北仪控制方法的研究成为重要的一环，其控制器性能的好坏直接影响到磁悬浮寻北仪的动态性能等特性。

Some new method is presented in this paper: A. An Integrated parameters computation method to analysis asynchronous operation of the turbine generator is given, including the equivalence of short circuit and open circuit of field windings, deducing boundary condition of 〓 method and computing frequency parameters. B. A new memory structure for sparse complex matrix and a PCCG method based on it are introduced to save memory and computation time. C. An equivalent method of vacuum is presented, and effectively eliminate the effect of corner point and accelerate convergence of PCCG method. D. Coupling the computation of electromagnetic and temperature field is discussed and model for computing temperature field of the turbine generator rotor at asynchronous operation is built.

文中提出了以下新方法：(1)在失磁异步运行转子三维涡流场计算中提出了完整的参数计算方法，其中包括励磁绕组开、短路的等效，〓法边界条件的推导及频率参数的计算方法；(2)提出了铁心内空气域的等效方法，有效地解决了开槽引起的角点奇异问题，并提高了方程组的迭代收敛速度；(3)在〓法有限元模型中，创立了一种能节约内存、提高计算速度的压缩存储矩阵格式，并建立了基于该格式的方程组解法；(4)提出了涡流电磁场和温度场两种不同场计算的合理结合方法，建立了转子三维稳态和时变温度场的有限元计算模型。

This paper studied on electromagnetic field computation Poisson equation, and built discrete equation for resolve in EFGM.

无网格法作为一种新兴的数值方法，解除了节点的网格束缚，能够消除由于网格存在所带来的缺陷。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。