查询词典 vacuum

In this dissertation, we construct the Bariev model with nine kinds of boundary fields by the matrices K_± defining the boundaries. And then the Lax operator is given in the form ofmatrix, as well as the basic quantities, e.g., the R -matrix, the monodromy matrices and the transfer matrices are defined. By using the expression of the local Lax operator of the model,the action of the monodromy matrices T, T~(-1), U_ on the pseudo-vacuum state is given outin detail. Furthermore, the main fundamental commutation relations are obtained through the reflection equations, the recursive n-particle state as well as the one-particle exact solution is given and the Bethe ansatz equations are found accordingly. Finally, we list the nesting boundary K matrices, which play a crucial role for obtaining the n-particle solution and finding the Bethe ansatz equations, the eigenvalues of the transfer matrices and the energy spectrum of the system by means of the nested algebraic Bethe ansatz method.

在这篇文章中，我们利用边界K_±矩阵构造出了具有九种边界场的Bariev模型，同时给出了该模型L算子的具体矩阵表示形式，并定义了R矩阵，monodromy矩阵以及转移矩阵；接着利用L算子的矩阵形式，给出了其对应monodromy矩阵T、逆矩阵T~(-1)作用到真空态上的值，并利用Yang-Baxter关系及反射方程得到了双行monodromy矩阵U作用到真空态上的值；然后利用反射方程通过复杂的计算得到了一系列重要的基本对易关系式，并给出了模型的递推的多粒子波函数、单粒子解及Bethe ansat方程；最后给出了模型的嵌套的边界K矩阵的具体形式，从而为运用嵌套Bethe ansatz方法求解该模型的多粒子解、Bethe ansatz方程以及系统的能谱打下了很好的基础。

Based on analyzing the principle of monostable permanent magnet actuator in vacuum circuit breaker,this paper provides a method of intelligently choosing phase.

基于单稳态永磁机构的真空断路器原理分析，提出采用永磁机构的真空断路器进行智能选相。

This paper elaborates on the practical program to develop and apply monostable permanent magnet mechanism,high voltage vacuum quenching chamber by the use of synchronous switching technology.

目前世界上有以日本为代表的地面带电、带负荷自动过分相和以英国为代表的欧洲车载式机车断电、断负荷自动过分相两种方式。

The processing method has been taken when breakdown of vacuum switch permanent magnetism straight line motor-driven system occurs.

文章的最后对设计的驱动机构的优缺点进行了一定深度的总结，得出了一些结论。

Then with the new system, eight group working data of MPT in atmosphere and vacuum environment were acquired.

使用开发成功的MPT虚拟仪器测试系统进行了MPT的真空和大气条件下启动点火热试，以He气和Ar气为工质测得了大气环境和真空环8种状态下MPT稳态运行的数据。

The aim of these researches is to improve the work performance and reliability of switching devices and finish the protection and control of the power supply system. This work is based on the design of VCB with multiple breaks and vacuum arc of high current in short-gap is studied.

本文探讨真空开关电弧外部形态特征和内部等离子体参数的诊断，旨在提出相应的调控理论以提高开关装置的工作性能和指标，完成电力系统的保护和控制任务。

Fluidized floors can be designed for multiple point vacuum extraction or for bottom or side discharge.

流化床层可设计多点真空提取或底部或侧面排放。

The secret weapon for developing the musculature of the abdominal wall is a little known exercise called the ab vacuum.

的秘密武器的发展肌肉的腹壁是一个鲜为人知的公司行使所谓的真空。

The qualified 10B naphthenic type rubber filling oil is developed by taking hydrodeacidifying oil from Liaohe naphthene base vacuum cut 2 as raw oil.

经过实验室研究，以辽河环烷基减二线加氢脱酸油为原料，生产出合格的 10B高级环烷型橡胶填充油，产品通过了岳阳石化橡胶厂使用评定，10B高级环烷型橡胶填充油可以作为填充油生产SBS充油胶。

The restoring Casimir force, which is the force that changes from repulsion to attraction with the increasing slab separation, may be found to exist between perfectly conducting material and metamaterial slabs. This restoring force is a natural power for the system oscillation in vacuum and also can be used for system stabilization

而若将其中一个材料板取为理想导体板，Casimir效应则可表现为随板间距的增大从排斥力转变为吸引力即平衡回复力，这种力可用来产生板间振荡或稳定真空中的力学系统。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。