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.
標簽: cylindrical scattering expansion developed
上傳時間: 2017-03-30
上傳用戶:lhc9102
基于NesC/TinyOS的無線傳感器網絡測量節點源碼,平臺:Crossbow IRIS,按用戶指定時間間隔讀取Decagon公司的EC5和EC-TM傳感器信息
上傳時間: 2014-01-13
上傳用戶:小儒尼尼奧
THIS DOCUMENT IS ALL ABOUT THE NANOTECHONOLOGY AND IT USES USING THIS NANO WE CAN IMPLEMENT A 1TB IN 100GM HARDDISK,,,THAT MUCH TINY ,,
標簽: THIS NANOTECHONOLOGY IMPLEMENT DOCUMENT
上傳時間: 2017-04-26
上傳用戶:aeiouetla
樹是由n(n≥0)個結點組成的有限集合T。n=0的樹稱為空樹;對n>0的樹,有:(1)僅有一個特殊的結點稱為根結點,根結點沒有前驅結點;(2)當n>1時,除根結點外其余的結點分為m(m>0)個互不相交的有限集合T1,T2,…,Tm,其中每個集合Ti本身又是一棵結構和樹類似的子樹。
上傳時間: 2014-01-01
上傳用戶:lgnf
對于Java的word解析,主流方法是用中間件去訪問,但是需要用JNI Apache和微軟合作,開發的POI,但是POI雖然功能強大,但是用起來也很麻煩 3.5版本和以前的3.0版本修改了很多,而且還沒穩定下來。 對于一般的應用,例如類似QQ手機郵箱那樣,僅僅只需要讀出文本內容的話,我們可以直接用tm-extractors,當然它底層也是調用的Apache POI
上傳時間: 2017-05-31
上傳用戶:zaizaibang
This book presents an established methodology for transitioning the people, processes, and technologies in IT environments to the Solaris(TM) Operating System.
標簽: transitioning established methodology processes
上傳時間: 2017-06-07
上傳用戶: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.)
標簽: 305 MATLAB sunucusu kurulumu
上傳時間: 2017-06-30
上傳用戶: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.
標簽: notification synchronous detector circuit
上傳時間: 2017-09-18
上傳用戶:xieguodong1234
編譯器,tiny的小型編譯器。。。用于開發,需要一個lex的虛擬機運行。。。
標簽: 編譯器
上傳時間: 2014-12-02
上傳用戶:l254587896
介紹了51單片機開發的基本知識、常用功能模塊以及KEIL8051 C編譯器;重點介紹了7個實際的應用實例,內容涉及紅外數據通信系統開發、光纖延遲線系統開發、車輛行駛狀態記錄儀開發、SDH光端機支路單元盤開發、用單片機實現簡單的Web服務器、基于Keil RTX51 Tiny的遠程監控采集系統開發、Shell調試系統開發等。
標簽: 應用系統開發
上傳時間: 2015-12-02
上傳用戶:13411102023