A cylindrical wave expansion method is developed to obtain the scattering field for an ideal two-dimensional cylindrical invisibility cloak. A near-ideal model of the invisibility cloak is set up to solve the boundary problem at the inner boundary of the cloak shell. We confirm that a cloak with the ideal material parameters is a perfect invisibility cloak by systematically studying the change of the scattering coefficients from the near-ideal case to the ideal one. However, due to the slow convergence of the zeroth order scattering coefficients, a tiny perturbation on the cloak would induce a noticeable field scattering and penetration.
标签: cylindrical scattering expansion developed
上传时间: 2017-03-30
上传用户:lhc9102
You will recieve a Standard Grade for completion of this Extra credit will be given for a more creative approach to the problem, either minimum amount of code, an additional display of seating beyond just the boarding pass, etc
标签: will completion for Standard
上传时间: 2014-01-02
上传用户:dongqiangqiang
This is the Reference Manual for the MySQL Database System. It documents MySQL up to Version 5.0.1-alpha, but is also applicable for older versions of the MySQL software (such as 3.23 or 4.0-production) because functional changes are indicated with reference to a version number.
标签: MySQL Reference documents the
上传时间: 2014-01-17
上传用户:shinesyh
The function applies the Madsen method for Doppler Centroid estimation. The input are: 1) the raw data, the parameter of the distance between samples in azimuth to be correlated and the PRF (Pulse repetition frequency)
标签: estimation The the Centroid
上传时间: 2017-08-12
上传用户:pinksun9
Altera provides a number of reference designs that show efficient solutions for common design problems. Altera® reference designs can be used to develop new solutions and innovative products, improve your understanding of Altera product capabilities, as well as help reduce your design time. The use of Altera’s reference designs is governed by, and subject to, the terms and conditions of the Altera Hardware Reference Design License Agreement.
标签: efficient reference solutions provides
上传时间: 2014-01-25
上传用户:asdfasdfd
Despite the development of a now vast body of knowledge known as modern control theory, and despite some spectacular applications of this theory to practical situations, it is quite clear that some of the theory has yet to find application, and many practical control problems have yet to find a theory that will successfully deal with them. No one book, of course, can remedy the situation. The aim of this book is to construct bridges that are still required for the student and practicing control engineer between the familiar classical control results and those of modern control theory.
标签: Quadratic Optimal Control Methods Linear
上传时间: 2020-06-10
上传用户:shancjb
Removing output capacitors saves money and boardspace. Linear Technology’s OPTI-LOOPTM architectureallows you to use the output capacitors of your choice andcompensate the control loop for optimum transientresponse and loop stability. Figure 1 shows the dramaticimprovement possible with the OPTI-LOOP architecture.With the improvement shown in Figure 1, less capacitance
上传时间: 2013-12-15
上传用户:fanboynet
Gmail API for Java 一个gmail信箱的客户端,直接访问gmail信箱,不用登陆gmail网站。
上传时间: 2015-02-05
上传用户:GavinNeko
代码名称:The alxBase classes for work with dbf files 代码说明:读写DBF文件的类 工具/平台:VC Win2
标签: alxBase classes files Win2
上传时间: 2015-02-26
上传用户:3到15
source code for unrar3.3.4,uppack the .rar files,for multi-os
标签: for multi-os source uppack
上传时间: 2015-03-17
上传用户:lanwei