It was proposed that perfect invisibility cloaks can be constructed for hiding objects from electromagnetic illumination (Pendry et al., Science 312, p. 1780). The cylindrical cloaks experimentally demonstrated (Schurig et al., Science 314, p. 997) and theoretically proposed (Cai et al., Nat. Photon. 1, p. 224) have however simplified material parameters in order to facilitate easier realization as well as to avoid infinities in optical constants. Here we show that the cylindrical cloaks with simplified material parameters inherently allow the zeroth-order cylindrical wave to pass Through the cloak as if the cloak is made of a homogeneous isotropic medium, and thus visible. To all high-order cylindrical waves, our numerical simulation suggests that the simplified cloak inherits some properties of the ideal cloak, but finite scatterings exist.
标签： invisibility constructed proposed electrom
上传时间： 2013-12-18
上传用户：13215175592
We obtained the energy transport velocity distribution for a three dimensional ideal cloak explicitly. Near the operation frequency, the energy transport velocity has rather peculiar distribution. The velocity along a line joining the origin of the cloak is a constant, while the velocity approaches zero at the inner boundary of the cloak. A ray pointing right into the origin of the cloak will experience abrupt changes of velocities when it impinges on the inner surface of the cloak. This peculiar distribution causes long time delays for beams passing Through the ideal cloak within a geometric optics description.
标签： distribution dimensional transport obtained
上传时间： 2013-12-19
上传用户：zhliu007
In the bank all the activities are being done manually .As the bank widens its services & it finds difficult to manage its operations manually and hence this leads to the automation of some of its operations. Banking Information system is a windows based applications. This project mainly deals with managing there types of account such as Saving Account, Current Account and Recurring Deposits . In this project bank is seeking to manage these account Through computer based system. Tasks involved in this project are opening the user accounts , recording the account holders transactions , modify, the user records and generating the reports . This project is having three module: ] 1. Bank Master Module 2. Transaction Module 3. Reports module
标签： the bank activities manually
上传时间： 2013-12-13
上传用户：LouieWu
Mac OS X for Java Geeks delivers a complete and detailed look at the Mac OS X platform, geared specifically at Java developers. Programmers using the 10.2 (Jaguar) release of Mac OS X, and the new JDK 1.4, have unprecedented new functionality available to them. Whether you are a Java newbie, working your way Through Java Swing and classpath issues, or you are a Java guru, comfortable with digital media, reflection, and J2EE, this book will teach you how to get around on Mac OS X. You ll also get the latest information on how to build applications that run seamlessly, and identically, on Windows, Linux, Unix, and the Mac.
标签： Mac delivers complete detailed
上传时间： 2017-04-08
上传用户：小码农lz
This is hands-down the best C++ book for anyone who really wants to use C++, it will take you Through all of the features of the language and not only explain what each feature is for, but also why it was included, and the best way to use it.
标签： hands-down anyone really throug
上传时间： 2017-04-10
上传用户：hakim
Fortran 90 versions of all the Numerical Recipes routines appear in the following Chapters B1 Through B20, numbered in correspondence with Chapters 1 Through 20 in Volume 1. Within each chapter, the routines appear in the same order as in Volume 1, but not broken out separately by section number within Volume 1鈥檚 chapters. There are commentaries accompanying many of the routines, generally following the printed listing of the routine to which they apply. These are of two kinds: issues related to parallelizing the algorithm in question, and issues related to the Fortran 90 implementation. To distinguish between these two, rather different, kind
标签： Numerical following the Chapters
上传时间： 2017-04-12
上传用户：6546544
This is a PCI to USB bridge schematic that i was draw by hand from a PCI to USB card, the schematic use VT6212L to make bridge, the idear is that we can use microcontroler interface to PC Through PCI slot by USB, ha ha it is too easy.
上传时间： 2017-04-12
上传用户：13188549192
Control your PC with Mobile Phone-it controls your pc using mobile phone from anywhere in the world. A command can be send by mobile phone Through sms.Based on the command ur pc performs tasks such as shut down,open file,play music etc.
标签： your Phone-it controls anywhere
上传时间： 2017-04-13
上传用户：四只眼
This program sets up EVA Timer 1, EVA Timer 2, EVB Timer 3 and EVB Timer 4 to fire an interrupt on a period overflow. A count is kept each time each interrupt passes Through the interrupt service routine. EVA Timer 1 has the shortest period while EVB Timer4 has the longest period.
上传时间： 2013-12-25
上传用户：康郎
This program sets up EVA Timer 1, EVA Timer 2, EVB Timer 3 and EVB Timer 4 to fire an interrupt on a period overflow. A count is kept each time each interrupt passes Through the interrupt service routine.
上传时间： 2017-04-25
上传用户：fandeshun
