查询词典 optics

Semi-analytical method, a new solution to calculate electromagnetic field, is applied to analyze three kinds of quadrupole field of shape-varied electrodes in electron optics.

采用一种新的半解析法，对电子光学中3种不同形状电极产生的四极场进行分析计算。

Electron Optics ,Analytical Instruments, Semiconductor Equipment ,Thin Film Coating Systems,Medical Equipment

电子光学设备分析仪器半导体方面的设备薄膜喷涂系统医学设备

ZHANG Pengwas born in 1978,and received his B.S.degree and M.S.degree from the Department of Optics and Electron Engineering,Ordnance Engineering College,in 2001 and 2005 respectively.

作者单位查看张鹏：军械工程学院光学与电子工程系，石家庄 050003清华大学精密仪器测试技术与仪器国家重点实验室，北京 100084

In the past two decades, with the development of electron optics, computer and imaging, hip arthroscopy surgery has become the best effective method in the diagnosis and treatment of the hip discord, as a method integrates less invasive and invisible characteristics.

近20年来，髋关节镜技术作为微创与直视相结合的一种治疗手段，在电子光学、计算机和影像学的带动下，成为诊断和治疗髋关节内疾患的最有效方法之一，其适应证逐渐扩大，甚至逐渐成为诊断髋关节疾病的金标准。

Comparing these two results in view of computational efficiency and computational accuracy,it appears that MGM is superior to FDM in solving electrostatic field distribution for the electron optics problem.

通过与目前在场计算中常用的有限差分法进行比较，可以看出多重网格法的计算效率和计算精度优于有限差分法。

In this paper, the high peak power Multi-Beam Klystron was preliminarily researched and the electron optics system and RF interaction system of an S-band 50 MW MBK were studied.

对高峰值功率多注速调管进行了初步的研究，重点研究了S波段50 MW多注速调管的电子光学系统和高频互作用系统。

Laser optics ; electron acceleration ; ponderomotive force ; single test electron model

激光光学；电子加速；有质动力；单电子运动模型

Study of the electron optics property of ELV-8 electron accelerator.

ELV-8型加速器电子光学性能研究。

It is shown that theoptical HMT can be realized exactly by the optics or electrooptics and theaccumulated errors arising from the correlation can be avoided.

这种方法的优点是易于光学和光电子的精确实现，避免由相关引起的累积误差。

The numercial simulation has been carried out, and the experimental results show that this method has been improved significantly comparing with the traditional one in nonlinear optics. Secondly, a second order system of semilinear elliptic equations, which comes from a mathematics model of the electric potential distribution of a media surrounded with the protein, is transformed into a variational problem, the existence of solution of it is proved by using variational principle and Trudinger—Moser inequality, and the relation between the solutions of variational problem and the solutions of its dual problem is obtained.

首先，讨论了非线性光学中的二次谐波产生的耦合方程组，利用变分法证明了耦合方程组非平凡解的存在性，然后进行了数值模拟，实验结果表明文中方法比经典的非线性光学中的方法有较大的改进，这对优化光倍频器件的设计将有所帮助；其次，将一类二阶半线性椭圆型方程组转化为一个变分问题，然后利用变分法和

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。