查询词典 electromagnetic interference

Analysis magnet field is realized by Maxwell 2D on finite-element of electromagnetic field analysis. Inductance of coil as well as electromagnetic force was calculated by means of it.

2利用Ansoft软件中的Maxwell 2D磁场有限元分析软件进行电机磁场分析、静态电磁力的仿真计算以及电机线圈自感的计算。

Firstly, according to electromagnetic field theory, the 2-dimensional (2-D) mathematical model of a three phase squirrel-cage Y802-2 induction motor is developed. Then general equations can be deduced from finite element discrete and functional analysis. The motor's 2D solving region of electromagnetic field is given based on the boundary conditions and assumption conditions of the squirrel-cage induction motor. Through finite element mothod and inner–outer convergence method, magnetic field distributions and magnetic forces of bars can be calculated in following rotor conditions: health rotor, one single broken bar, two adjacent broken bars, two broken bars with one good interval, two broken bars with two good interval and four adjacent broken bars.

本文首先根据电磁场理论建立Y802-2型三相笼型感应电动机二维电磁场的数学模型，并对其进行了有限元离散以及泛函分析，推导出总体方程；在基本假设和边界条件基础上，给出笼型感应电动机二维电磁场的求解区域，然后应用有限元并结合内外双收敛方法，对样机稳态运行进行数值计算，得出电机在转子完好、一根导条断裂、连续两根导条断裂、间隔一根两根导条断裂、间隔两根两根导条断裂及连续四根导条断裂六种情况下的磁场分布和导条所受电磁力的变化情况。

The electromagnetic responses of the finite size induction coils were evaluated, and the effects of the borehole mud ,casing pipe and radius of the induction coils were analyzed, the sensitivity of the electromagnetic response to the formation resistivity was checked against the crosshole measurements.

分析了金属套管井中有限尺寸线圈的电磁响应特征，讨论了井眼泥浆参数﹑套管参数和不同线圈尺寸对电磁测井响应的影响，考察了金属套管中电磁测井对地层电阻率变化的灵敏度。

One-dimensional time domain helicopter-borne electromagnetic responses are computed using G-S transform and Gauss numerical integral. The variation of electromagnetic responses due to bird height is analyzed, and then the variation of bird height is transformed to the variation of pseudo-layer thickness of zero conductivity to eliminate the error of the altimeter.

采用G-S变换以及高斯数值积分法，形成了时间域直升机的航空电磁响应正演样本集，分析了飞机测量过程中吊舱高度变化对电磁响应的影响，并将吊舱高度的变化等效成电导率为零的假层厚度的变化，以去除高度计等的影响。

Meanwhile, a facilitated electromagnetic model of a general purpose computer motherboard is built. Numerical simulation based on the Finite-Difference Time-Domain method is performed and the coupled electromagnetic field of the motherboard is achieved.

以一款普通计算机主板作为研究对象，使用时域有限差分法进行模拟计算，得到了EMR作用下计算机主板耦合的电磁场分布。

Gigahertz transverse electromagnetic cells for electromagnetic pulse simulator must be high voltage resistant and favorable transfer characteristic.

为了提高GTEM传输室的耐高压能力，并保证良好的传输特性，对其馈电接头进行了优化设计。

Gas is composed of electromagnetic and other material, a substance which can be imaginary unit i said that the square root of negative one, that is, the virtual and physical entities of the computing complex material, which is the process of mutation of the actual process of change, with acupuncture points on this Characteristics of species, the meridian acupuncture points of the different substances in different proportion, that is, electromagnetic and the proportion of complex material, they have a different God.

气是有电磁和其他物质组成，其中有一种物质可以用虚数单位表示i负一的开平方，就是虚的物质与实体物质的运算复数，也就是突变过程虚实的变化过程，穴位就具有这种特性，经络穴位的不同其物质的比例也不同，就是电磁与复数物质的比例也不同，其所产生的神也不同。

For evaluating the security of cryptographic device in the risk environment full of electromagnetic analysis adversaries,by enhancing the adversary's ability in the classical cryptographic black box model, two novel adversaries,the key recover adversary and the indistinguishability determined adversary who takes the advantage of electromagnetic emissions,were defined within the framework of physical observable cryptography model.

为在充斥电磁分析旁路攻击敌手的危险环境下评估密码设备的安全性，通过将密码学标准黑盒模型中的敌手能力进行加强，在物理可观测密码术模型的框架内，定义了具有电磁泄漏信息分析能力的密钥恢复敌手与不可分辫性判定敌手。

Firstly, by using the vector integral theory and boundary conditions of the electromagnetic filed, the boundary problem of two electromagnetic fields in the upper half space and lower half space is transformed into two vector integral equations just related to the topography interface, i.e.

提出了一种用边界元法计算频率域人工源三维地形电磁场的数值模拟方法。

Through analyses on the exchange between the space electron kinetic energy and interelectrode electromagnetic field energy, and energy changes of the electromagnetic field on the magnetically insulated transmission line cross-section, the quantitative relationship between the line voltage and current is pressented at the start and end during the formation process of the magnetical insulation without electron loss.

通过分析空间电子与极间电磁场之间的能量交换关系，以及磁绝缘传输线横截面上的电磁场总能量变化，给出了量化无损磁绝缘形成过程始末时刻线电压和线电流关系的电磁模型。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。