Thisbookisforeveryonewhoneedstotesttheweb.Asatester,you'llautomateyourtests.Asadeveloper,you'llbuildmorerobustsolutions.Andasateam,you'llgainavocabularyandameanstocoordinatehowtowriteandorganizeautomatedtestsfortheweb.Followthetestingpyramidandle

DistributedSystems(3rd)英文无水印原版pdf第3版pdf所有页面使用FoxitReader、PDF-XChangeViewer、SumatraPDF和Firefox测试都可以打开本资源转载自网络，如有侵权，请联系上传者或csdn删除查看此书详细信息请在美国亚马逊官网搜索此书Copyright@2017MaartenvanSteenandAndrewS.TanenbaumPublishedbyMaartenvanSteenThisbookwaspreviouslypublishedby:PearsonEducation,IncISBN:978-15-430573-8-6(printedversion)ISBN:978-90-815406-2-9(digitalversion)Edition:3.Version:01(February2017)AllrightstotextandillustrationsarereservedbyMaartenvanSteenandAndrewS.Tanenbaum.Thisworkmaynotbecopied,reproduced,ortranslatedinwholeorpartwithoutwrittenpermissionofthepublisher,exceptforbriefexcerptsinreviewsorscholanyformofinformationstorageadaptationorwhatever,computersoftware,orbysimilarordissimilarmethodsnowknownordevelopedinthefutureisstrictlyforbiddenwithoutwrittenpermissionofthepublisherToMarielle,max,andelkeMVSToSuzanneBarbara,Marvin,Aronnathan,olivia,andmirteASTCONTENTSPreface1Introduction1.1Whatisadistributedsystem?Characteristic1:Collectionofautonomouscomputingelements2Characteristic2:SinglecoherentsystemMiddlewareanddistributedsystems1.2DesigngoalsSupportingresourcesharingMakingdistributiontransparent12Beingscalable15Pitfalls243Typesofdistributedsystems24Highperformancedistributedcomputing25Distributedinformationsystems34Pervasivesystems1.4Summary522Architectures552.1Architecturalstyles56Layeredarchitectures.57Object-basedandservice-orientedarchitectures62Resource-basedarchitectures64Publish-subscribearchitectures2.2MiddlewareorganizationWrappersInterceptors垂番Modifiablemiddleware752.3SystemarchitectureCONTENTSCentralizedorganizations76Decentralizedorganizations:peer-to-peersystemsHybridarchitectures2.4Examplearchitectures94TheNetworkFilesystem94TheWeb982.5Summary3Processes1033.1Threads..104Introductiontothreads104Threadsindistributedsystems1113.2Virtualization116Principleofvirtualizationapplicationofvirtualmachinestodistributedsystems,1223.3Clients124Networkeduserinterfaces124Client-sidesoftwarefordistributiontransparency1273.4Servers128Generaldesignissues129Objectservers133Example:TheApacheWebserver139Serverclusters,,,,,,,1413.5Codemigration152Reasonsformigratingcode152Migrationinheterogeneoussystems1583.6Summary1614Communication4.1Foundations164LayeredProtocols164TypesofCommunication.1724.2Remoteprocedurecall..173Basicrpcoperation174Parameterpassing178RPC-basedapplicationsupport182VariationsonrPc185Example:dCErPc,.1884.3Message-orientedcommunication193Simpletransientmessagingwithsockets.193Advancedtransientmessaging198Message-orientedpersistentcommunication206Example:IBM'sWebSpheremessage-queuingsystem212Example:AdvancedMessageQueuingProtocol(AMQP)....218DS3.01DOWNLOADEDBYTEWIGOMIXMAIL.INFOCONTENTS4.4Multicastcommunication221Application-leveltree-basedmulticasting221Flooding-basedmulticasting225Gossip-baseddatadissemination2294.5Summary2345Naming2375.1Names,identifiersandaddresses2385.2Flatnaming.241Simplesolutions241Home-basedapproaches245Distributedhashtables246Hierarchicalapproaches2515.3Structurednaming256Namespaces.256Nameresolution259Theimplementationofanamespace264Example:TheDomainNameSystem271Example:TheNetworkFileSystem2785.4Attribute-basednaming283Directoryservices283Hierarchicalimplementations:LDAP285Decentralizedimplementations2885.5Summary2946Coordination2976.1Clocksynchronization.298Physicalclocks299Clocksynchronizationalgorithms3026.2Logicalclocks310Lamport'slogicalclocks310Vectorclocks3166.3Mutualexclusion321322acentralizedalgorithm.322adistributedalgorithm323atoken-ringalgorithm.325adecentralizedalgorithm3266.4Electionalgorithms329Thebullyalgorithm.,..330Aringalgorithm332Electionsinwirelessenvironments333Electionsinlarge-scalesystems.3356.5Locationsystems336DOWNLOADEDBYTEWIGOMIXMAIL.INFODS301VIllCONTENTSGPS:GlobalPositioningSystem337WhengPsisnotanoption339Logicalpositioningofnodes3396.6Distributedeventmatching..343Centralizedimplementations3436.7Gossip-basedcoordination349asgregation349Apeer-samplingservice350Gossip-basedoverlayconstruction3526.8Summary3537Consistencyandreplication3557.1Introduction356Reasonsforreplication356Replicationasscalingtechnique3577.2Data-centricconsistencymodels358Continuousconsistency359Consistentorderingofoperations364Eventualconsistency3737.3Client-centricconsistencymodels375MonotonicreadsMonotonicwrites.379Readyourwrite380Writesfollowreads3827.4ReplicamanagementFindingthebestserverlocation383Contentreplicationandplacement..385Contentdistribution..388Managingreplicatedobjects3937.5Consistencyprotocols.396Continuousconsistency..........396Primary-basedprotocols398Replicated-writeprotocolsCache-coherence403Implementingclient-centricconsistency,,...4077.6Example:CachingandreplicationintheWeb4097.7Summar4208Faulttoleran4238.1Introductiontofaulttolerance424Basicconcepts.424Failuodels427Failuremaskingbyredundancy8.2Processresilience432DS3.01DOWNLOADEDBYTEWIGOMIXMAIL.INFO

Differenttypesoffemtosecondopticaltweezershavebecomeapowerfultoolinthemodernbiologicalfield.However,howtocontroltheirregulartargets,includingbiologicalcells,usingfemtosecondopticaltweezersremainstobeexplored.Inthisstudy,humanredbloodcells(hRBCs)aremanipulatedwithfemtosecondopticaltweezers,andtheirstatesunderdifferentlaserpowersareinvestigated.TheresultsindicatethatopticalpotentialtrapsonlycancapturetheedgeofhRBCsunderthelas

人工智能与智能系统相关领域学习教材

Thishands-onguidecutsshortthepreambleandgetsstraighttothepoint–actuallycreatinggraphics,insteadofjusttheoreticallearning.Eachrecipeisspecificallytailoredtosatisfyyourappetiteforproducingreal-time3-DgraphicsusingGLSL4.0.IfyouareanOpenGLprogrammerlookingtousethemodernfeaturesofGLSL4.0tocreatereal-time,three-dimensionalgraphics,thenthisbookisforyou.FamiliaritywithOpenGLprogramming,alongwiththetypical3Dcoordinatesystems,projections,andtransformationsisassumed.ItcanalsobeusefulforexperiencedGLSLprogrammerswhoarelookingtoimplementthetechniquesthatarepresentedhere.

RTKLIB是日本东京海洋大学开发（TokyoUniversityofMarineScienceandTechnology）开发的一个开放源程序包，供标准与精确GNSS全球导航卫星系统应用。
RTKLIB包括一个可移植的程序库和几个应用程序（AP）库。
RTKLIB的特点：（1）支持标准的和精确的定位算法：GPS，GLONASS，QZSS准天顶卫星系统,北斗和SBAS（2）支持多种定位模式与GNSS实时和后处理readme：NavIC(IRNSS)completelysupported.RINEX3.04supported.BDS-3andQZSSnewsignalsadded.RTCM3.3amendment-1supported.MT1041/1131-7(NavICephemeris/MSM)added.RTCM3MT1230(GLONASScode-phasebiases)supported.RTCM3MT4076(IGSSSR)supported.GNSSsingalIDchanged:L1,L2,L5/3,L6,L7,L8,L9-＞L1,L2,L3,L4,L5.OnlyWindows64bitAPssupported.32bitAPsdeleted.WindowsscaledDPIAPssupportedfordifferentDPIscreens.DirectoriesRTKLIB/appandRTKLIB/datareorganized.Licenseclarified.SeeRTKLIB/LICENSE.txt.BugsandproblemsfixedincludingGitHubIssues:#461,#477,#480,#514,#540,#547,#555,#560.

简单的基于MFC的Socket点对点对话客户端(SimpleSocketpeer-to-peerdialogueMFC-basedcustomer-side)

不多说，如果你需要学习Extjs或者是不懂Extjs，这门视频能对你有很大的帮助，文件过大，上传乃是下载链接，下面上目录：1、ExtJs初识及其环境搭建2、开始ExtJs梦想之旅#n8}:~+d4X+V1c3、ExtJS工具栏、菜单栏0Q'y0E.yE4、ExtJS最常用的表单之textfield控件4|4]8~/d3Y&k#X5、ExtJs最常用表单组件Number、CheckBox、Radio*s,r%~+k;y#W6、ExtJs最常用表单组件ComboBox、time、date7、ExtJS面板Panelt1E(w8g6?/L'A8、EXtJS布局模式-Auto布局、Fit布局、Accordion布局9、ExtJS布局模式-Card、Anchor、Absolute(r!k$G/Q,u!c'U11、ExtJS布局模式-Box布局、使用ViewPort布局首页0j(d'o{.g$T12、ExtJS之Ext常用函数4{,o8W1s!I6^3k13、ExtJS之Ext常用函数（二）'o,e2G$D7@"?-[!E14、初识Ajax&iO,A2I,c6G:c-Q)K%I15、ExtJS对Ajax支持-注册用户实例16、ExtJS对Ajax支持-注册用户实例217、ExtJS之Grid组件*w/o8_-\.Q![*R6s&u0V18、ExtJS之ComboBox获取远程数据、网页计算器5W&].W7?,V/Q19、ExtJS之组件面向对象编程（一）20、ExtJS之组件面向对象编程（一）21、项目实战-需求分析、数据字典、数据库设计)r,`+J(`$l#d7I$h#W:U'r*a22、项目实战-底层框架搭建、创建实体对象23、项目实战-数据访问层处理9W1_1m7_"T.J(N0T+k24、项目实战-数据批处理、分页查询25、项目实战-业务逻辑层、控制器层26、项目实战-控制器层、Spring配置文件编写27、项目实战-Spring配置文件编写、完善底层环境搭建28、项目实战-在线选课系统用户前端界面3|/|-F1T+E5L2@)l29、项目实战-在线选课系统用户前端界面(添加、修改、删除)

Smallenclosures............................................................23Compactenclosures......................................................39Enclosuresystems.........................................................51ITenclosuresystems/housings......................................81Consolesystems/PCenclosuresystems.......................97Operatinghousings/supportarm/standsystems.........111Stainlesssteel..............................................................157Exenclosures...............................................................171Busbarsystems...........................................................183RiLine...........................................................................189Ri4Power......................................................................245Ri4Powerdistributionenclosures.................................275Coolingwithambientair..............................................293Coolingunits................................................................311Coolingwithwater........................................................331Enclosureheaters........................................................344Climatecontrolaccessories.........................................347RiMatrixS.....................................................................375ITenclosuresystems/housings....................................383ITpower.......................................................................385ITcooling.....................................................................405ITmonitoring................................................................421ITsecuritysolutions.....................................................441Valuechain..................................................................455Software.......................................................................471Service..................................

DICOMpr.ocx适用系统：VB、VB.NET、VC++、C#、DELPHI、C++Builder、PB、VF开发平台软件特点：*使用DICOM标准打印协议*打印胶片大小可进行设置*可进行横向或纵向排版打印*支持NxN格式分布打印购买破解版http://item.taobao.com/item.htm?spm=686.1000925.1000774.13.uCcbIU&id=36242774684

在日常工作中，钉钉打卡成了我生活中不可或缺的一部分。然而，有时候这个看似简单的任务却给我带来了不少烦恼。 每天早晚，我总是得牢记打开钉钉应用，点击"工作台"，再找到"考勤打卡"进行签到。有时候因为工作忙碌，会忘记打卡，导致考勤异常，影响当月的工作评价。而且，由于我使用的是苹果手机，有时候系统更新后，钉钉的某些功能会出现异常，使得打卡变得更加麻烦。 另外，我的家人使用的是安卓手机，他们也经常抱怨钉钉打卡的繁琐。尤其是对于那些不太熟悉手机操作的长辈来说，每次打卡都是一次挑战。他们总是担心自己会操作失误，导致打卡失败。 为了解决这些烦恼，我开始思考是否可以通过编写一个全自动化脚本来实现钉钉打卡。经过一段时间的摸索和学习，我终于成功编写出了一个适用于苹果和安卓系统的钉钉打卡脚本。