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
The second edition of WiMax Operator鈥檚 Manual includes most of the material from the first edition, plus new discussions of 鈥?The ultra-high-speed mobile telephone standard, HSDPA 鈥?Ultrawideband (UWB) 鈥?Changes to DSL technologies 鈥?Mobile voice 鈥?Mobile entertainment 鈥?New backup systems The new edition also reflects the changes that have occurred in the industry over the last year and half, including the emergence of restandards wireless broadband equipment with fully developed mobile capabilities, ignificant alterations in the competitive landscape, and he opening of valuable new spectrum for roadband wireless operators.
标签： edition the Operator includes
上传时间： 2014-01-02
上传用户：xiaodu1124
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
主要是Space-Time Codes and MIMO Systems电子书，Ultra-High Speed Optical OFDM Transmission Technologies文章，MIMO的研究与仿真论文……
标签： Space-Time Systems Codes MIMO
上传时间： 2014-01-11
上传用户：yyyyyyyyyy
采用FPGA实现了两套IDE接口功能，设计支持PIO和Ultra DMA传输模式，文章侧重于介绍用FPGA实现IDE接口协议的具体方法。
上传时间： 2017-09-08
上传用户：时代电子小智
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
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
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
