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
基于NesC/TinyOS的无线传感器网络测量节点源码，平台：Crossbow IRIS，按用户指定时间间隔读取Decagon公司的EC5和EC-TM传感器信息
上传时间： 2014-01-13
上传用户：小儒尼尼奥
THIS DOCUMENT IS ALL ABOUT THE NANOTECHONOLOGY AND IT USES USING THIS NANO WE CAN IMPLEMENT A 1TB IN 100GM HARDDISK,,,THAT MUCH TINY ,,
标签： THIS NANOTECHONOLOGY IMPLEMENT DOCUMENT
上传时间： 2017-04-26
上传用户：aeiouetla
树是由n(n≥0)个结点组成的有限集合T。n=0的树称为空树；对n>0的树，有:(1)仅有一个特殊的结点称为根结点，根结点没有前驱结点；(2)当n>1时，除根结点外其余的结点分为m(m>0)个互不相交的有限集合T1,T2，…，Tm，其中每个集合Ti本身又是一棵结构和树类似的子树。
上传时间： 2014-01-01
上传用户：lgnf
对于Java的word解析，主流方法是用中间件去访问，但是需要用JNI Apache和微软合作，开发的POI，但是POI虽然功能强大，但是用起来也很麻烦 3.5版本和以前的3.0版本修改了很多，而且还没稳定下来。 对于一般的应用，例如类似QQ手机邮箱那样，仅仅只需要读出文本内容的话，我们可以直接用tm-extractors，当然它底层也是调用的Apache POI
上传时间： 2017-05-31
上传用户：zaizaibang
This book presents an established methodology for transitioning the people, processes, and technologies in IT environments to the Solaris(TM) Operating System.
标签： transitioning established methodology processes
上传时间： 2017-06-07
上传用户：jeffery
MATLAB R14 Programı nı n License sunucusu üzerinden kurulumu: MATLAB programı nı n eski versiyonunu kaldı rı nı z. MATLAB 2 ş ekilde yüklenebilmektedir. A) Sadece istenen MATLAB bileş enlerinin yüklenmesi B) Tüm MATLAB bileş enlerinin yüklenmesi (Tüm bileş enler Harddisk sürücüde 1.5 GB yer kaplamaktadı r.)
标签： 305 MATLAB sunucusu kurulumu
上传时间： 2017-06-30
上传用户：wweqas
This circuit is a nice edge detector that gives you synchronous notification of edges on your input signal. There s no excuse for not doing this it s a tiny circuit in just five lines of Verilog.
标签： notification synchronous detector circuit
上传时间： 2017-09-18
上传用户：xieguodong1234
编译器，tiny的小型编译器。。。用于开发，需要一个lex的虚拟机运行。。。
标签： 编译器
上传时间： 2014-12-02
上传用户：l254587896
介绍了51单片机开发的基本知识、常用功能模块以及KEIL8051 C编译器；重点介绍了7个实际的应用实例，内容涉及红外数据通信系统开发、光纤延迟线系统开发、车辆行驶状态记录仪开发、SDH光端机支路单元盘开发、用单片机实现简单的Web服务器、基于Keil RTX51 Tiny的远程监控采集系统开发、Shell调试系统开发等。
标签： 应用系统开发
上传时间： 2015-12-02
上传用户：13411102023
