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.
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
This book presents an established methodology for transitioning the people, processes, and technologies in IT environments to the Solaris(TM) Operating System.
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.)
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.