查询词典 electromagnetic field

Al-Zn-Mg-Cu-Zr aluminum alloys were prepared by electromagnetic casting and direct chill casting, respectively. The effects of electromagnetic field on as-cast microstructure and alloy elements solid solubility inside crystals of Al-Zn-Mg-Cu-Zr aluminum alloy were investigated.

摘 要：分别采用电磁铸造和普通连铸技术制备Al-Zn-Mg-Cu-Zr合金，研究电磁场对合金显微组织、合金元素晶内固溶度的影响。

Al-Zn-Mg-Cu-Zr aluminum alloys were prepared by electromagnetic casting and direct chill casting, respectively. The effects of electromagnetic field on as-cast microstructure and alloy elements solid solubility inside crystals of Al-Zn-Mg-Cu-Zr aluminum alloy were investigated.

分别采用电磁铸造和普通连铸技术制备Al-Zn-Mg-Cu-Zr合金，研究电磁场对合金显微组织、合金元素晶内固溶度的影响。

In order to reduce the effect of probe errors in near-field antenna measurement, the solutions are proposed as follows: On the one hand, theoretical formula of probe-compensated is derived; on the other hand, drop-shaped probe is designed and near-zone gain, far-field patterns, axial ratio, main lobe width, input impedance, voltage standing-wave ratio, electromagnetic field and current distribution of probe are obtained through the computer simulation.

针对近场测量中的重要误差源之一&探头&的影响，本文提出解决方法：一方面用探头补偿的方法，根据洛仑兹互易定理和微波网络理论对补偿的解析式进行详细推导；另一方面用两种不同的仿真软件求解终端开口矩形波导探头的近场增益、远场方向图、轴比、主瓣宽度、输入阻抗、电压驻波比、电场分布、磁场分布、表面电流分布等特性参数，可实现探头增益的修正。

The flex spline deflection of EHD actuator under the electromagnetic field and its effect on the magnetic field are analyzed with the consideration of couping of structural deflection and magnetic field.

分析了电磁式谐波传动中柔轮在电磁场力作用下的变形规律；并针对其应力位移场与电磁场耦合的特点，分析了变形对其磁场作用的影响。

Finally, the wave equation of the electromagnetic field of this kind damper isderived from the Maxwells equation. The magnetic flux density at the boundary isassumed to be harmonic, so the analytical result of the wave equation is solved. When therotor rotates, eddy currents flowing inside the conducting material field are caused. Thetangential force acting on the rotor because of the action between eddy currents andmagnetic field is produced. The tangential force causes a retardation torque, which leadsto the increase of power and heating effects.

最后，应用Ahrens的电磁轴承简化模型，从Maxwell方程出发推导了应用于本文所述的被动式电磁阻尼器的波动方程，并用傅立叶级数把矩形磁场展开的谐变磁场作为磁场的边界条件，通过求解波动方程得到磁场的解析解，从而计算了阻尼器对转子的电磁力和由涡流引起的切向力产生的阻尼器附加功耗。

The finite element model of 35 kV electromagnetic voltage transformer is built with ANSYS software,and its interior electromagnetic field distribution is analyzed and calculated.

运用有限元分析软件ANSYS建立了35 kV电磁式电压互感器的有限元分析模型，并对模型内部的电磁场分布情况进行了分析、计算。

A seven-node difference scheme of the diffusion equation was proposed to study the behaviors of transient electromagnetic field in complicated 3-D geoelectric body. Models of roadway and anomaly body were set up for simulating the transient field excited by a vertical magnetic dipole source. The result of numerical simulation shows that the presence of low resistive conductor leads to noticeable distortion of isolines for the "smoke ring" field, whereas the distortion is not so obvious where the roadway and the poor conductor are located.

为了探讨复杂三维地电体中瞬变电磁场的响应特征，推导了三维扩散方程的七点差分格式，建立了巷道和异常体模型，并对垂直磁偶源激发的瞬变场进行了数值模拟，观察到早期&烟圈&场在低阻体处等值线发生的明显畸变，在巷道和高阻体处的畸变较弱，随着时间的增加异常体的影响逐渐减弱。

In an oil well, the casing is a steel circular pipe, and it would confine and guide the electromagnetic wave propagating; and the electric properties of the fluid media would determine the propagation factor of the guided wave and affect the distribution state of the electromagnetic field.

油井内的套管是钢铁质圆管，对电磁波的传播将产生限制和引导作用；油井内流体介质的电性质将决定导波的传播常数，影响电磁场在井的轴向上和横向上的分布状态和波的传播特性。

Keywords: UFO, Flying Saucer Principles, Electric Field, Magnetic Field, Electromagnetic Field

因为周围强大电场的存在，飞碟离地很近飞行时，往往引发闪电和风暴。

For the present work, we pointed out that, as the basic unit for classical electromagnetic field, electromagnetic element-wave should be a new kind of matter which can also be called "quasi-photon".

今天，我们还特别指出：&电磁基波&作为经典电磁场的基本单元，应该是一种新的物质，亦可称作&准光子&。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。