查询词典 levitation

Camacho D%Mora J%Fontcuberta J Calculation of levitation forces in permanent magnet-superconductor systems using finite element analysis Journal of Applied Physics , 1997,03

辜承林%李朗如转子轴向叠压各向异性磁阻电机磁场、参数及性能的分析与计算中国电机工程学报， 1994，3

In this paper, PID controller problems are tackled in the research of permanent and electromagnet hybrid-levitation system.

这些混合悬浮系统在节省能量增大气隙方面表现出很大的优势，但其控制的难度和复杂性却相应的增加了。

Simulation results showed that the electromagnet torque and the radial levitation force were decoupled, and the validity of this method was confirmed.

仿真结果表明：实现了电磁转矩与径向悬浮力之间的解耦，验证了此方法的有效性。

The relationships of cleanness , undercooling and grain size of low carbon steel have been investigated by using of vacuum glass encasement levitation melting.

利用玻璃包熔真空悬浮熔炼等手段研究低碳钢的纯净度、过冷度与晶粒度之间的关系研究表明：随着包熔次数增加，钢中夹杂物含量减少，纯净度提高。

The insurmountable difficulties of traditional control strategy in isolating vertical vibration and controlling micro-oscillation may be overcome by employing magnetic levitation technique.As a fundamental research of this technology,the governing equitation of rigid uniformity magnetic suspension pole is derived.

采用磁悬浮技术可以解决传统控制方法在竖向隔震、微振控制等方面所面临的难题，作为这项技术应用基础研究，本文建立了磁悬浮均匀等直刚杆的运动方程，讨论了方程的稳定性，给出了随机地面扰动输入下求解非线性振动解的Runge-Kutta格式，并对悬浮刚杆在任意输入下的响应进行了分析。

Based on the levitation principle of bearingless motor, the torque winding air gap field oriented vector control is utilized to realize the decoupling control of the nonlinear system even in the transient case.

在研究无轴承异步电机的磁悬浮机理的基础上，利用转矩绕组气隙磁场定向控制实现两者之间的动态解耦控制。

Fly Stick Van de Graff Levitation Wand in Action!

飞棒范德格拉夫磁悬浮魔杖在行动！

Systematic study is carried out to the main factors that influence the levitation stability during containerless processing of materials. The effect of the medium density r f , sound speed c , gravitational acceleration g , and resonant states Hm on the acoustic containerless processing is revealed.

对材料声悬浮无容器处理过程中，影响悬浮稳定性的主要因素进行了深入研究，揭示了媒质密度 r f ，声速 c ，重力加速度 g 和声场谐振状态 Hm 对声悬浮过程的影响机制。

The increase of the gravitational level makes the levitation potential wells shallower or even disappearing.

重力水平的提高会使悬浮势阱变浅甚至消失。

The levitation force and the lateral force of a HTS above the experimental permanent magnetic guideway were calculated by this method.

计算中考虑了高温超导体的各向异性及外磁场对超导体临界电流密度的影响。

World War II: Battle of Saipan - Americans take Saipan.

1944年的今天，美国在塞班战役中拿下塞班岛。

When the scorner, the rejecter of truth, has become presumptuous; when the routine of work in the various money-making lines is carried on without regard to principle; when the student is eagerly seeking knowledge of everything but his Bible, Christ comes as a thief.{DA 635.3

当讥诮和拒绝真理的人，到了任意妄为时，当追求财利者罔顾按道义经营谋利时，当学人正在兢兢业业地研究各种知识，而单把圣经丢在一边时，基督要像贼一样来临。