We analyze, both analytically and numerically, the effectiveness of cloaking an infinite cylinder from observations by electromagnetic waves in three dimensions. We show that, as truncated approximations of the ideal permittivity and permeability tensors tend towards the singular ideal cloaking fields, so that the anisotropy ratio tends to infinity, the D and B fields blow up near the cloaking surface. Since the metamaterials used to implement cloaking are based on effective medium theory, the resulting large variation in D and B will pose a challenge to the suitability of the field averaged characterization of " and 碌. We also consider cloaking with and without the SHS (softand- hard surface) lining, shown in [6] to be theoretically necessary for cloaking in the cylindrical geometry. We demonstrate numerically that cloaking is significantly improved by the SHS lining, with both the far field of the scattered wave significantly reduced and the blow up of D and B prevented.
标签： effectiveness analytically numerically cloaking
上传时间： 2017-03-30
上传用户：zxc23456789
Creating barcodes in Microsoft庐 Office has never been easier. With BarCodeWiz Toolbar you can add barcodes to Microsoft庐 Office applications with a click of a button. In Microsoft庐 Word, create single barcodes, pages of labels, or mail merge documents. In Microsoft庐 Excel庐, select a range of cells and automatically convert each cell to a barcode. In Microsoft庐 Access庐, create reports with barcodes based on your data tables.
标签： BarCodeWiz Microsoft Creating barcodes
上传时间： 2013-12-18
上传用户：asddsd
Short description: GUI Ant-Miner is a tool for extracting classification rules from data. It is an updated version of a data mining algorithm called Ant-Miner (Ant Colony-based Data Miner), which was proposed in 2002 by Parpinelli, Lopes and Freitas. GUI Ant-Miner differs from the original algorithm as follows: It has a friendly graphical user interface, makes possible the use of ant populations within the Ant Colony Optimization (ACO) concept, data input file is standardized with the well-known Weka system, and runs on virtually any operating system since it is written in Java.
标签： classification description extracting Ant-Miner
上传时间： 2013-12-18
上传用户：gonuiln
A design about 8051 (running at 12MHz) based system with 3 7-Seg displays and two buttons to implement the following functions. 1. When press the + button, the display C = A+B. 2. When press the button, the display C = A - B. “A” and “B” are 8-bit inputs when “C” is 9-bit output.
上传时间： 2015-05-05
上传用户：guoxiy
1. 制作自己的 GUI用户界面，实现图像的傅里叶变换，并验证傅里叶变换的“平移不变性”、“旋转一致性”； 2. 在GUI中，实现图像的灰度拉伸，要求有灵活的（a,a’）点、（b,b’）点的选择。 （提高题）图像的灰度拉伸，用曲线控件完成。
上传时间： 2017-05-10
上传用户：mouroutao
This edition updates and continues the series of books based on the residential courses on radiowave propagation organised by the IEE/IET. The first course was held in 1974, with lectures by H. Page, P. Matthews, D. Parsons, M.W. Gough, P.A. Watson, E. Hickin, T. Pratt, P. Knight, T.B. Jones, P.A. Bradley, B. Burgess and H. Rishbeth.
标签： Propagation Radiowaves edition 3rd of
上传时间： 2020-05-31
上传用户：shancjb
STM32 F1系列 MCU ATIUM AD集成库 原理图库 PCB 3D封装库文件,STM32F1XXXXX全系列原理图+PCB封装库文件，共209个器件型号，CSV text has been written to file : STM32 F1.csvLibrary Component Count : 209Name Description----------------------------------------------------------------------------------------------------STM32F100C4T6B STM32 ARM-based 32-bit MCU Value Line with 16 kB Flash, 4 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 48-Pin LQFP, TraySTM32F100C4T7B STM32 ARM-based 32-bit MCU Value Line with 16 kB Flash, 4 kB Internal RAM, Internal Code B, -40 to +105癈 Temperature, 48-Pin LQFP, TraySTM32F100C6T6B STM32 ARM-based 32-bit MCU Value Line with 32 kB Flash, 4 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 48-Pin LQFP, TraySTM32F100C6T6BTR STM32 ARM-based 32-bit MCU Value Line with 32 kB Flash, 4 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 48-Pin LQFP, Tape and ReelSTM32F100C6T7B STM32 ARM-based 32-bit MCU Value Line with 32 kB Flash, 4 kB Internal RAM, Internal Code B, -40 to +105癈 Temperature, 48-Pin LQFP, TraySTM32F100C8T6B STM32 ARM-based 32-bit MCU Value Line with 64 kB Flash, 8 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 48-Pin LQFP, TraySTM32F100C8T6BTR STM32 ARM-based 32-bit MCU Value Line with 64 kB Flash, 8 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 48-Pin LQFP, Tape and ReelSTM32F100CBT6B STM32 ARM-based 32-bit MCU Value Line with 128 kB Flash, 8 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 48-Pin LQFP, TraySTM32F100CBT7B STM32 ARM-based 32-bit MCU Value Line with 128 kB Flash, 8 kB Internal RAM, Internal Code B, -40 to +105癈 Temperature, 48-Pin LQFP, TraySTM32F100R4H6B STM32 ARM-based 32-bit MCU Value Line with 16 kB Flash, 4 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin TFBGA, TraySTM32F100R4T6B STM32 ARM-based 32-bit MCU Value Line with 16 kB Flash, 4 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin LQFP, TraySTM32F100R4T6BTR STM32 ARM-based 32-bit MCU Value Line with 16 kB Flash, 4 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin LQFP, Tape and ReelSTM32F100R6H6B STM32 ARM-based 32-bit MCU Value Line with 32 kB Flash, 4 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin TFBGA, TraySTM32F100R6T6 STM32 ARM-based 32-bit MCU Value Line with 32 kB Flash, 4 kB Internal RAM, -40 to +85癈 Temperature, 64-Pin LQFP, TraySTM32F100R6T6B STM32 ARM-based 32-bit MCU Value Line with 32 kB Flash, 4 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin LQFP, TraySTM32F100R6T6BTR STM32 ARM-based 32-bit MCU Value Line with 32 kB Flash, 4 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin TFBGA, Tape and ReelSTM32F100R8H6B STM32 ARM-based 32-bit MCU Value Line with 64 kB Flash, 8 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin TFBGA, TraySTM32F100R8T6B STM32 ARM-based 32-bit MCU Value Line with 64 kB Flash, 8 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin LQFP, TraySTM32F100R8T6BTR STM32 ARM-based 32-bit MCU Value Line with 64 kB Flash, 8 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin LQFP, Tape and ReelSTM32F100RBH6B STM32 ARM-based 32-bit MCU Value Line with 128 kB Flash, 8 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin TFBGA, TraySTM32F100RBH6BTR STM32 ARM-based 32-bit MCU Value Line with 128 kB Flash, 8 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin TFBGA, Tape and ReelSTM32F100RBT6B STM32 ARM-based 32-bit MCU Value Line with 128 kB Flash, 8 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin LQFP, TraySTM32F100RBT6BTR STM32 ARM-based 32-bit MCU Value Line with 128 kB Flash, 8 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin LQFP, Tape and ReelSTM32F100RCT6B STM32 ARM-based 32-bit MCU Value Line with 256 kB Flash, 24 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin LQFP, TraySTM32F100RDT6 STM32 ARM-based 32-bit MCU Value Line with 384 kB Flash, 32 kB Internal RAM, -40 to +85癈 Temperature, 64-Pin LQFP, TraySTM32F100RDT6B STM32 ARM-based 32-bit MCU Value Line with 384 kB Flash, 32 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-Pin LQFP, TraySTM32F100RET6 STM32 ARM-based 32-bit MCU Value Line with 512 kB Flash, 32 kB Internal RAM, -40 to +85癈 Temperature, 64-Pin LQFP, TraySTM32F100RET6B STM32 ARM-based 32-bit MCU Value Line with 512 kB Flash, 32 kB Internal RAM, Internal Code B, -40 to +85癈 Temperature, 64-
上传时间： 2022-04-30
上传用户：jiabin
本书主要介绍针对嵌入式系统基于c语言的软件项目开发流程、较为复杂的c语言编程知识与技巧、编程风格及调试习惯，并通过对一个具体的软件模块(asix window gui)的分析，介绍分析代码的方法以及设计软件系统需要考虑的各要素。本书以实际项目中的代码为例来进行介绍，详细分析在嵌入式系统开发中程序员应该注意的方法、技巧和存在的陷阱。本书适合用作学习嵌入式系统的高年级本科生或硕士研究生的教学用书，也可作为从事嵌人式系统编程的软、硬件工程师的技术参考用书。目录:第1章 概述第2章 c语言的关键字与运算符第3章 c语言的函数第4章 编译、汇编与调试第5章 存储器与指针第6章 中断与设备驱动第7章 编码风格第8章 代码的调试第9章 asix window gui设计详解附录a c++／c代码审查表(c语言部分)附录b 部分课后思考题解答附录c 嵌入式c语言测试样卷与参考答案附录d ub4020mbt开发板简介
上传时间： 2022-07-27
上传用户：
·SDK V4.2软件包包含：PMSM FOC固件库和STMC Workbench（GUI），允许用户使用STM32进行单或双PMSM马达的FOC的驱动，其支持STM32F0Xx，STM32F1xx，STM32F2XX，STM32F3xX及STM32F4xx·相电流采样支持：·1-SHUNT：采样电阻放在DCBUS上·ST专利的算法·仅需要1个电阻/运放：成本较低·电流采样算法可能会带来力矩纹波·3-SHUNT：采样电阻放在3个下桥臂上·电流采样精度高·不会有电流纹波产生·ICS：2个隔离的电流传感器·放在A/B相绕组上·适用于相电流较大的场合：无功耗·成本较/LCO
上传时间： 2022-07-27
上传用户：kent
VIP专区-嵌入式/单片机编程源码精选合集系列（121）资源包含以下内容：1. U盘对考的例子程序 U盘对考的例子程序.2. The book is organized around 55 specific guidelines, each of which describes a way to write better C.3. CC2430DB电路图.4. tms320c6000 将用户程序写入到flash.5. 是法国NUM数控系统1006的PLC控制软件。.6. 一本关于C8051F原理和应用的书.7. 19264说明与显示程序,对学习19264初学者很有用.8. 一个经典的东东.9. SD卡的SD模式的读写驱动.10. LPC2142 LCD12232的显示动画例程.11. 一段菜单与界面的程序 效果很好 有图片展示.12. 本驱动程序是24064液晶(肇庆金鹏产品 型号Ocmj4×15D)上使用 控制器为8822 MCU为89S52 效果很好。可以用于8822控制器上的液晶.13. blackfin533开发FFTC语言实现.14. GUI设计.15. 梁祝乐曲演奏电路设计.16. USB网卡dm9601芯片的驱动程序.17. 实现51与计算机的通信测试 通过1602LCD显示通信的数据.18. 本科教育的实体实例.19. S3C44B0学习板原理图.20. 液晶显示模块概述 一、液晶显示模块概述 RT19264D汉字图形点阵液晶显示模块.21. 嵌入式硬件设计实用手册.22. 射频识别利用nrf 2401芯片实现收发功能.23. 基于DE2实验板.24. bc7281b芯片在avr单片机上的应用.25. I2C eprom 读写程序设计.26. ds1302的中文资料.27. FPGA的英文资料,介绍的比较详细EPF10系列的.28. 基于数码管的四位动态同步显示.29. ATMEL169PV,开发详细资料,其中包含源程序代码.30. 高频波形.31. TL431应用.TL431,A、B集成电路是三端可编程并联稳压二极管。.32. uart pci 等verilog hdl 代码.33. HD300 Mp3播放器电路图 CPU部分.34. 通过VERILOG HDL语言使用CPLD连接PS2键盘..35. dspic61010A串口通讯程序.36. PIC单片机的C语言编程.37. protel 设计电路的相关资料,暂时只有一部分,等我再传.38. 采用异步方式传送数据.39. 一种好的统计参数估计方法．其中的原代码为国外学者编写.40. 这个源代码是关于利用MODEM实现单片机与PC通信的程序.
标签： 光电检测技术
上传时间： 2013-07-05
上传用户：eeworm
