主要特点 * Flexible finite element space construction based template element library 基于模板单元库灵活的构造有限元空间 * Convenient facilities to implement mesh adaption 很方便的进行网格加密和稀疏化 * Multi-mesh operation supported 支持多套网格操作 需要有一定的有限元基础和C++语言基础，最好在linux平台下用。 http://162.105.68.168/AFEPack/
标签： element construction Flexible template
上传时间： 2014-11-21
上传用户：qq1604324866
Return to a container object, can pass this object //Carry on management to the container, such as add to control a piece, with layout operation etc.
标签： container object management Return
上传时间： 2014-01-24
上传用户：rocketrevenge
This document provides guidelines for integrating a discrete high speed USB host controller onto a fourlayer desktop motherboard. The material covered can be broken into three main categories: Board design guidelines, EMI/ESD guidelines and front panel USB guidelines. Section 1.1 Background provides an explanation of the routing experiments and testing performed to validate the feasibility of 480 Megabits per second on an actual motherboard. Section 7 contains a design checklist that lists each design recommendation described in this document. High speed USB operation is described in the USB 2.0 Specification (http://www.usb.org/developers/docs.html).
标签： integrating controller guidelines document
上传时间： 2013-11-27
上传用户：电子世界
This document provides guidelines for integrating a discrete high speed USB host controller onto a fourlayer desktop motherboard. The material covered can be broken into three main categories: Board design guidelines, EMI/ESD guidelines and front panel USB guidelines. Section 1.1 Background provides an explanation of the routing experiments and testing performed to validate the feasibility of 480 Megabits per second on an actual motherboard. Section 7 contains a design checklist that lists each design recommendation described in this document. High speed USB operation is described in the USB 2.0 Specification (http://www.usb.org/developers/docs.html).
标签： integrating controller guidelines document
上传时间： 2015-11-18
上传用户：xhz1993
A system simulation environment in Matlab/Simulink of RFID is constructed in this paper. Special attention is emphasized on the analog/RF circuit.Negative effects are concerned in the system model,such as phase noise of the local oscillator,TX-RX coupling,reflection of the environment, AWGN noise,DC offset,I/Q mismatch,etc.Performance of the whole system can be evaluated by changing the coding method,parameters of building blocks,and operation distance.Finally,some simulation results are presented in this paper.
标签： environment constructed simulation Simulink
上传时间： 2014-01-09
上传用户：zhangliming420
邮件系统是Linux网络应用的重要组成，一个完整的邮件系统包括三个部分：底层操作系统（Linux operation），邮件传送代理（Mail Transport Agent，MTA），邮件分发代理（Mail Delivery Agent，MDA），邮件用户代理（Mail User Agent，MUA）。 Postfix是一个非常优秀的MTA，她素以高效、安全的特点而著称。Postfix是作者在UNIX上所见过的MTA中在反垃圾邮件（Anti- Spam或Anti-UCE）方面做得最好的一个，甚至有很多公司在Postfix代码的基础上进行二次开发而推出反垃圾邮件网关产品。MTA的反垃圾邮件功能，实际上就是在MTA处理过程中对会话进行过滤。这个过滤不但过滤了发往自身的垃圾邮件，而且还防止了自身被恶意利用发送垃圾邮件。Postfix 实现了目前所有主要的MTA过滤技术。postfix是Wietse Venema在IBM的GPL协议之下开发的MTA（邮件传输代理）软件。和Sendmail相比Postfix更快、更容易管理、更灵活、更安全。
上传时间： 2015-11-25
上传用户：dapangxie
The MAX504/MAX515 are low-power, voltage-output, 10-bit digital-to-analog converters (DACs) specified for single +5V power-supply operation.用于DA转换芯片选型
标签： digital-to-analog voltage-output converters MAX
上传时间： 2015-11-26
上传用户：541657925
Jitter is extremely important in systems using PLL-based clock drivers. The effects of jitter range from not having any effect on system operation to rendering the system completely non-functional. This application note provides the reader with a clear understanding of jitter in high-speed systems. It introduces the reader to various kinds of jitter in high-speed systems, their causes and their effects, and methods of reducing jitter. This application note will concentrate on jitter in PLL-based frequency synthesizers.
标签： extremely PLL-based important drivers
上传时间： 2014-11-25
上传用户：asddsd
This demonstration shows that reordering the rows and columns of a sparse matrix S can affect the time and storage required for a matrix operation such as factoring S into its Cholesky decomposition
标签： demonstration reordering the columns
上传时间： 2016-01-14
上传用户：奇奇奔奔
ST7529液晶驱动 The ST7529 is a driver & controller LSI for 32 gray scale graphic dot-matrix liquid crystal display systems. It generates 255 Segment and 160 Common driver circuits. This chip is connected directly to a microprocessor, accepts Serial Peripheral Interface (SPI), 8-bit/16-bit parallel or IIC display data and stores in an on-chip display data RAM. It performs display data RAM read/write operation with no external operating clock to minimize power consumption. In addition, because it contains power supply circuits necessary to drive liquid crystal, it is possible to make a display system with the fewest components.
标签： 7529 controller dot-matrix graphic
上传时间： 2013-12-02
上传用户：奇奇奔奔
