When a system designer specifies a nonisolated dc/dc powermodule, considering the needed input voltage range isequally as important as considering the required performanceAttributes and features. Generally, nonisolated moduleshave either a narrow or a wide input voltage range. Narrowinputmodules typically have a nominal input voltage of3.3, 5, or 12 V. For systems that operate from a tightlyregulated input bus—such as those that do not use batterybackup—a narrow-input module is often adequate sincethe input remains fairly stable.Offering greater flexibility, wide-input modules operatewithin a range of 7 to 36 V, which includes the popular12- or 24-V industrial bus. This enables a single module tobe used for generating multiple voltages. These modulesare ideal for industrial controls, HVAC systems, vehicles,medical instrumentation, and other applications that usea loosely regulated distribution bus. In addition, systemspowered by a rectifier/battery charger with lead-acidbattery backup almost always require wide-input modules.System designers who choose power supplies may wantto take a close look at the latest generation of wide-inputdc/dc modules.
标签： Wide-input modules offer dc
上传时间： 2014-12-24
上传用户：dragonhaixm
汇编器在微处理器的验证和应用中举足轻重，如何设计通用的汇编器一直是研究的热点之一。本文提出了一种开放式的汇编器系统设计思想，在汇编语言与机器语言间插入中间代码CMDL（code mapping description language）语言，打破汇编语言与机器语言的直接映射关系，由此建立起一套描述汇编语言与机器语言的开放式映射体系。基于此开放式映射体系开发了一套汇编器系统，具有较高层次上的通用性和可移植性。【关键词】指令集，CMDL，汇编器，开放式 Design of Retargetable Assembler System Liu Ling Feng Wen Nan Wang Ying Chun Jiang An Ping Ji Li Jiu IME of Peking University, 100871【摘要】An assembler plays a very important role in the field of microprocessor verifications and applications, thus how to build a retargetable assembler system has been a hotspot in this field for long time. This paper presents a new method about the retargetable assembler system design.It provides a kind of language CMDL, code mapping description language. During the process of assembling, assembler languages are firstly translated to CMDL, and then mapped to the machine codes. In an other word, CMDL is inserted between assembler languages and machine codes during the translation procedure. As a medium code, CMDL has a lot of features, such as high extraction, strong descript capabilities. It can describe almost all Attributes of assembler languages. By breaking the direct mapping relationship between assembler languages and machine codes, the complexities of machine codes are hided to the users, therefore, the new retargetable assembler system has higher retargetable level by converting the mapping from assembler languages and machine codes to assembler languages and CMDL, and implementationof it becomes easier. Based on the new mapping system structure, a retargetable assemblersystem is developed. It proved the whole system has good retargetability and implantability.【关键词】instruction set, symbol table, assembler, lexical analysis, retargetability
上传时间： 2013-10-10
上传用户：meiguiweishi
This article is a very simple introduction writing a Windows Form application for the Microsoft.NET framework using C#. The sample application demonstrates how to create and layout controls on a simple form and the handling of mouse click events. The application displays a form showing Attributes of a file. This form is similar to the properties dialog box of a file (Right click on a file and Click on Properties menu item). Since Attributes of a file will be shown, the sample will show how to use File IO operations in .NET framework.
标签： introduction application Microsoft article
上传时间： 2015-04-09
上传用户：www240697738
The purpose of this computer program is to allow the user to construct, train and test differenttypes of artificial neural networks. By implementing the concepts of templates, inheritance andderived classes from C++ object oriented programming, the necessity for declaring multiple largestructures and duplicate Attributes is reduced. Utilizing dynamic binding and memory allocationafforded by C++, the user can choose to develop four separate types of neural networks:
标签： differenttype construct computer purpose
上传时间： 2013-12-06
上传用户：13517191407
本手册是 Rainer s DHTML Library 产品的一部分。 本手册针对的是已有一定网页设计制作经验的读者。其目的是提供完整清晰的样式表内容的快速索引及进阶帮助。所以对于网页制作和样式表的基础知识，仅简单介绍，恕不赘述。 手册提供了完整的 CSS2.0 的属性(Properties)、规则(At-Rules)、伪类(Pseudo-Classes)、伪元素(Pseudo-Elements)、声明(Declarations)、单位(Units)、选择符(Selectors)的介绍。其内容涵括了 W3C 的 CSS2.0 标准，以及 Internet Explorer 和 Netscape 各自的私有内容。出于种种众所周知的原因考虑，本手册以浏览器的事实标准—— Internet Explorer 为主。 手册中为几乎所有的已被支持的属性、伪类、单位等，除了基本的语法示范外，都度身制作了可以对照源代码即时察看运行演示的实例。 本手册的升级信息与版权声明请参阅关于本书页面。 限于篇幅，对于一些过于繁杂的相关内容，如动态样式属性(Dynamic Properties)，滤镜(Filters)，行为(Behaviors)请参阅我的其它相关著作。 本书中涉及到的所有HTML对象(Object，Element)，HTML属性(Attributes)和特性(Properties)请参阅我的相关著作。
上传时间： 2013-12-18
上传用户：hakim
Reducer: Given a dataset and a file containing a reduct, this program outputs a new dataset containing only the Attributes appearing in the reduct file.
标签： dataset containing containi Reducer
上传时间： 2014-01-25
上传用户：牛津鞋
本手册针对的是已有一定网页设计制作经验的读者。其目的是提供最新最全的样式表内容的快速索引及注释。所以对于样式表的基础知识，在此仅简单介绍，恕不赘述。 本手册的升级信息与版权声明请参阅关于本书页面。本手册中专用词汇请参阅中英文词汇对照表。 限于篇幅，对于一些过于繁杂的相关内容，如动态样式属性（Dynamic Properties），滤镜（Filters），行为（Behaviors）请参阅我的其它相关著作。 本书中涉及到的所有HTML对象（Object，Element），HTML特性（Attributes）和属性（Properties）请参阅我的相关著作。
上传时间： 2015-11-19
上传用户：hj_18
SharpZipLib之前叫做NZipLib，完全由 C# 开发的压缩库，支持Zip, GZip, Tar and BZip2 ，为2007年8月最新0852release版的源文件和文档说明！ Changes for v0.85.2 release Minor tweaks for CF, ZipEntryFactory and ZipFile. Fix for zip testing and Zip64 local header patching. FastZip revamped to handle file Attributes on extract + other fixes Null ref in path filter fixed. Extra data handling fixes Revamped build and conditional compilation handling Many bug fixes for Zip64. Minor improvements to C# samples. ZIP-1341 Non ascii zip password handling fix. ZIP-355 Fix for zip compression problem at low levels
标签： SharpZipLib NZipLib
上传时间： 2015-12-11
上传用户：84425894
SharpZipLib之前叫做NZipLib，完全由 C# 开发的压缩库，支持Zip, GZip, Tar and BZip2 ，为2007年8月最新0852release版的代码实例！ Changes for v0.85.2 release Minor tweaks for CF, ZipEntryFactory and ZipFile. Fix for zip testing and Zip64 local header patching. FastZip revamped to handle file Attributes on extract + other fixes Null ref in path filter fixed. Extra data handling fixes Revamped build and conditional compilation handling Many bug fixes for Zip64. Minor improvements to C# samples. ZIP-1341 Non ascii zip password handling fix. ZIP-355 Fix for zip compression problem at low levels
标签： SharpZipLib NZipLib
上传时间： 2015-12-11
上传用户：love_stanford
radius协议源码÷The Radius Stack will connect to a Radius Server. This stack implementation is built upon the UdpStack which is available in the radius{version}/util directory. A minimal set of VSAs (Vendor Specific Attributes are supported by this stack). The Radius Stack should be used as a base class. In order to implement a larger set of VSAs, one will need to subclass from the Radius Stack and implement the functionality within the virtual function processVsa(). The Radius Stack supports mostly accounting messages. The authentcation messages will be supported in a future release. A test program has been provided in the radius directory. This program shows how to subclass from the RadiusStack and how to use the api.
标签： Radius implementation connect radius
上传时间： 2013-12-12
上传用户：坏天使kk
