磁体

In Chapter 3,we investigate the influence of the single-ionanisotropy fluctuations on temperature-driven reorientation transition in two-dimensional ferromagnets.

在第三章中，我们讨论了单离子各向异性强度的空间涨落对二维铁磁体系中的自旋重定向相变的影响。

Electromagnetics course mainly including basic phenomena and laws of electro- magnetics, electrostatic field in vacuum, in conductor and in electric medium, electric energy, stabilized current, stabilized magnetic field and its basic laws, electric and magnetic fields caused by a moving chager in lower speed, the transform of electric and magnetic fields between different systems of coordinates, inductive laws, eddy field, self inductance, mutual inductance and transient, molecule current and magnetic substance, ferromagnet, boundary conditions, magnetic circuit theorem, energy of magnetic field and density of magnetic energy, displacement current, Maxwell's equation, electromagnetic wave, Poynting vector.

电磁学课程的主要内容包括：静电的基本现象和基本定律，真空中的静电场，导体和电介质中的静电场，电场的能量与电场能量密度，稳恒电流，稳恒电流磁场的基本定律，运动电荷的电磁场，不同参照系之间电磁场的变换，电磁感应定律，涡旋电场，互感，自感，暂态过程，分子电流与磁介质，铁磁体，边界条件，磁路定理，磁场的能量和磁能密度，位移电流， Maxwell 方程组，电磁波和玻印廷矢量等。

In this paper, the Genetic Algorithm, the Simulated Annealing and the Sequential Quadratic Programming used in the design of the HTS magnet were discussed and it was found that they had different advantages and limitations.

因此，本文发展了由遗传算法、序列二次规划算法和模拟退火算法有机结合而形成的优势互补的混合算法来进行高温超导磁体的电磁结构优化。

The variable section permanent magnet is decomposed into a series of magnetic circuit with lumped parameters in this paper.

利用分段法将变截面永磁体分解为一系列具有集总参数的磁路，推导了两种凸度系数下的永磁磁路的通用计算公式，该方法适合于非线性磁阻的计算机编程计算。

If the liquid in the diaphragm cavity to promote too little to promote liquid, the magnet will move to the ZSL trigger, the trigger output of a pulse signal to the PLC control box.

如果在 隔膜泵推进液腔内推进液太少，磁体将移动到触发器ZSL 处，触发器输出一个脉冲信号到PLC 控制箱。

The permanent magnets are now mouthed at the exterior of the high-pressure vessel and are no longer in contact with the fluid sample. So this construction of equipment decreases the contamination of each other. Concerning the temperature-control system, the present instrument employs one non-vibrating new technology. In the high pressure systems, a simple and fast high-pressure pump was used to generate hydraulic pressure. This equipment is more easy to control than the literature\'s methods. A digital lock-in amplifier has been used as sinusoidal current function generator and the induced signal detector.

本文对振动丝粘度密度仪在设计方案上进行了大量改进，把磁体从高压容器的内部移植到容器的外部，提高了容器的化学适应性，采用了无振动的恒温新技术，利用了方便快捷的加压方式，极大的方便了实验的进行，减少了实验的工作量，用数字Lock-in锁相放大器作为驱动信号发生器和诱导信号检测器，设备既简单又极大地提高了信号的检测灵敏度。

The voice coil motor components include a permanent magnet and an electric coil attached to the slide bar, powered by the power amplifier.

音圈电机的组成部分包括一个永磁体和一个电动线圈附在滑动条，采用功率放大器。

Based on the unsymmetrical design of magnetic circuit by means of slotting inside, the theory slot area is calculated.

基于电磁体表面内侧开槽的非对称设计构想，计算了理论开槽面积。

. The 27 km (17 mi) particle accelerator was launched last year, but suffered a failure from a faulty electrical connection, damaging 53 of the smasher's 9,300 superconducting magnets.

在27公里（17英里）的粒子加速器是去年推出的，但受到一有故障的电力连接失败，破坏了加速器的9300超导磁体53。

A piece of soft iron connecting the poles of a magnet.

铁是制造磁体的最佳金属。

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。