计算机网络课程设计---文件传输系统

OGIS框架式开发平台是对GIS行业应用系统开发项目的深入研究与总结基础上,精心设计研发的供GIS公司进行二次开发的产品级平台组件.平台封装了GIS系统的通用功能,各功能独立、设计合理、使用方便, 开发人员不需编写过多即可完成功能复杂的软件项目。从而达到降低开发难度、缩短开发周期、快速实时项目的目的,在GIS市场需求迅速扩张的环境下,让更多的公司更加容易进行GIS项目的实时,降低超额的人力成本,提高公司核心竞争力。 平台主要由两部分组成: 基础组件: 基础组件作为平台的组件库,各功能级模块进行封装,提供方便的调用接口. 项目级开发框架:通过组件进行搭建的GIS通用软件系统框架,盖含空间数据源管理、系统图层树管理配置、地图符号化配置、地图标注配置、 空间数据查询检索、缓冲区分析、数据输出、制图输出、图面元素标绘等功能,用户在实施项目时,获取框架源码后,只需在基础上添加业务级功能.

可以读取文本文档，将散乱的大量三维点云数据显示出来，并进行，平移旋转等。

stm32的TIM1带死区互补输出六路PWM波

美萍商业进销存管理系统是一款专业的销售管理软件，其中包含商品销售管理系统 ，库存管理系统（仓库管理系统），财务和报表系统等子模块。软件界面设计简洁，美观，其人性化的软件流程，使普通用户不需培训也能很快掌握软件操作使用方法，上手极易。

Inside_NAND_Flash_Memories.pdfRino micheloni· Luca Crippa· Alessia marelliInside nand flashMemoriesSpringerRino micheloniLuca CrippaIntegrated Device TechnologyForward InsightsAgrate BrianzaNorth yorkItalCanadarino. micheloni@ieee. orgluca.crippa @ieee.orgAlessia marelliIntegrated Device Technologyagrate brianzaItalylessiamarelli@gmail.comISBN97890-481-9430-8e-ISBN97890-481-9431-5DOI10.1007/978-90-481-9431-5Springer Dordrecht Heidelberg London New YorkLibrary of Congress Control Number: 2010931597O Springer Science+Business Media B.V. 2010No part of this work may be reproduced, stored in a retrieval system, or transmitted in any form or byany means, electronic, mechanical, photocopying, microfilming, recording or otherwise, without writtenbeing entered and executed on a computer system, for exclusive use by the purchaser of the wor Ose ofpermission from the Publisher, with the exception of any material supplied specifically for the purpoCover design: eStudio Calamar SLPrinted on acid-free paperSpringerispartofSpringerScience+businessMedia(www.springer.com)PrefaceIn the last decade Flash cards became the most important digital storage supportIt is difficult to identify a single killer application(digital photography, MP3digital video, ...)or whether the success of this media support is due to itsusability in different applications. It is also difficult to state whether the recentlution in the infotainment area has been triggered by the availability of high-performance NAND Flash memories or if the extraordinary success of Flash cardsis a consequence of the establishment of new applicationsIn any case, independently of the cause-effect relationship linking new digitalapplications and Flash cards, to realize how NANd Flash memories entered in ourdaily life, it is sufficient to imagine as they would change our recent habits if theNAND memories disappeared suddenly. To take a picture it would be necessary tofind a film (as well as a traditional camera .), disks or even magnetic tapes wouldbe used to record a video or to listen a song, and a cellular phone would return tobe a simple mean of communication rather than a console for an extendedentertainmentThe development of nand Flash memories will not be set down on the mereevolution of these digital systems since a new killer application can trigger a furthersuccess for this memory support: the replacement of Hard Disk Drives(HDD)with Solid State Drives (SSD)The advantages of Ssd with respect to HDD are countless(higher read/writspeed, higher mechanical reliability, random access, silent operation, lower powerconsumption, lower weight, .. ) Nevertheless, the cost per gigabyte is stillsignificantly favorable to hDd and the success of ssd will depend only on theperformances that they will succeed in reachingThe present book, the fourth authored by rino micheloni and coworkers afterVLSI-Design of Non-volatiles Memories, Memories in Wireless Systems and ErrorCorrection Codes for Non-volatile Memories, all published by Springer, tacklesall the main aspects related to NANd Flash memories, from the physicaltechnological, and circuit issues to their use in Flash cards and SsdsAfter an extended market overview(Chap. 1), Chap 2 has been conceived as aguide for the entire book, so that the reader can directly reach the heart of theproblems that interest himThe following chapters deepen physical and technological aspects. In particularChaps. 3 and 4 tackle technological and reliability issues of traditional FloatingGate NAND memories, respectively, while the state-of-the-art of charge trappingtechnologies is effectively summarized in Chap 5Ⅴ i PrefaceThe central part of the book is dedicated to circuit issues: logic( Chap. 6),sensing circuits(Chaps. 8 and 9)and high voltage blocks( Chaps. 1l and 12)Other basic topics related to circuit aspects are also analyzed, such as theimplementation of Double Data Rate interfaces( Chap. 7), while multilevel storage(2 bits per cell) is presented in Chap. 10Techniques adopted to increase memory reliability and yield are discussedin Chaps. 13 and 14, the former dealing with redundancy, the latter with ErrorCorrection Codes. The test flux used by nand memories manufactures is describedin Chap 15Chapter 16 focus on nand devices storing 3 and 4 bits per cell that allowreaching the lower cost per gigabyte and that will conquer, in the next few years,the market of consumer applicationsThe last chapters are dedicated to the two most popular systems based onNAND memories: Flash cards( Chap. 17)and SsD(Chap. 18). The relationshipbetween Nand memories and system performances are highlightedFinally, Chap. 19 describes the effects of ionizing radiations on non-volatilememories, to understand whether NaNd memories can be safely used in spaceand military applicationsProf. Piero olivoDean of the Engineering FacultyUniversity of ferrara, ItalyAcknowledgementsAfter completing a project like a technical book, it is very hard to acknowledgeall the people who have contributed directly or indirectly with their work anddedicationFirst of all, we wish to thank all the authors of the contributed chaptersWe have to thank mark de Jongh for giving us the possibility of publishing thiswork and cindy zitter for her continuous supportLast but not least, we keep in mind all our present and past colleagues for theirsuggestions and fruitful discussionsRino. Luca and alessiaTable of contentsPrefaceAcknowledgementsvIII Market and applications for nand Flash memoriesGregory Wong2 NAND overview: from memory to systemsR. Micheloni, A Marelli and S. Commodaro3 Program and erase of Nand memory arrays55Cristoph Friederich4 Reliability issues of NAND Flash memoriesC. Zambelli. a. Chimenton and p. olivo5 Charge trap nand technologies115Alessandro grossi6 Control logic131A Marelli.R Micheloni andR. ravasio7 NAND DDR interface161Andrea silvagni8 Sensing circuits197L. Crippa and R. micheloni9 Parasitic effects and verify circuits235L. Crippa and R. michelonO MLC Storage261L Crippa and R Micheloni11 Charge pumps, voltage regulators and HV switchesR Micheloni and L Crippa

关于qc-ldpc码的校验矩阵的构造，有详细的解释，简单易懂。关于qc-ldpc码的校验矩阵的构造，有详细的解释，简单易懂。关于qc-ldpc码的校验矩阵的构造，有详细的解释，简单易懂。关于qc-ldpc码的校验矩阵的构造，有详细的解释，简单易懂。

simulink搭的模型，参数全部设置好了，每个节点负载参数转换的有名值，功率60Hz

用于echarts地图全国各省份下各城市都有全，注意这里是全国各城市的json数据如果需要各省的请见我上传的全国及各省json资源

解压后，将matlab工作路径切换到ga文件夹，打开intcomputing.m或intcomputing.fig文件运行即可。基本遗传算法matlab的实现（比例选择（轮盘法），单点交叉，基本位变异),可以查看每代种群的最大及平均适应值曲线，各代个体的离散分布图及动画。

在局域网实现多人聊天功能，通过TCP协议提供简单和快速的网络传输服务来保证聊天的实时性。程序基于C/S结构，可实现多个客户端与服务端的通信，或者说是建立了一个聊天室，可以实现多人聊天，双方通过确认端口号和局域网IP来实现连接，服务端可以设置最大连接人数，客户端可以断开连接。