Letmestartwithafewwordsabouttheleadauthorofthisbook,ItzikBen-Gan.Heisamentor,consultant,presenter,teacher,andwriter.Allhisroleshaveaco妹妹ontheme—MicrosoftSQLServerprogra妹妹ing.Butwait—there’sevenmore:heisanMVP(officially“MicrosoftValuedProfessional,”butofteninterpretedasMostValuableProgra妹妹er)andaclosepartnerwithmanySQLServerdevelopersinRedmond,Washington.ThecombinationofthesetraitsputsItzikintoauniquepositionwhenwritingabookaboutSQLServerprogra妹妹ing.Heknowswhatworksandwhatdoesnot.Heknowswhatperformsandwhatdoesnot.Heknowswhatquestionspeopleaskwhenheisteaching.Andheknowswhatpeoplegraspeasilyandwhattheydon’twhenitcomestointroducingmorecomplexconceptsofSQLServerprogra妹妹ing.

pyspark访问hbase2报错的处理方案，下载spark2.4.3的源码重新打包。

本文详细引见了如何攻破已经发表的10种对抗样本防御方法。

DigunderthesurfaceandexploreRuby'smostadvancedfeature:acollectionoftechniquesandtricksknownasmetaprogra妹妹ing.Inthisbook,you'lllearnmetaprogra妹妹ingasanessentialcomponentofRubyanddiscoverthedeep,non-obviousdetailsofthelanguage.OnceyouunderstandthetenetsofRuby,includingtheobjectmodel,scopes,andsingletonclasses,you'reonyourwaytoapplyingmetaprogra妹妹ingbothinyourdailyworkassignmentsandinyourfun,after-hoursprojects.ThiscompletelyrevisedneweditioncoversthenewfeaturesinRuby2.0and2.1,andcontainscodefromthelatestRubylibraries,includingRails4.Mostexamplesarenew,"fromthewild,"withmorerecentlibraries.Andthebookreflectscurrentideasofwhenandhowmuchmetaprogra妹妹ingyoushoulduse.

TheReasonedSchemer(MITPress)(TheMITPress)By作者:DanielPFriedman–WilliamEByrd–OlegKiselyov–JasonHemannISBN-10书号:0262535513ISBN-13书号:9780262535519Edition版本:secondedition出书日期:2018-03-09pages页数:(206)Aneweditionofabook,writteninahumorousquestion-and-answerstyle,thatshowshowtoimplementanduseanelegantlittleprogramminglanguageforlogicprogramming.Thegoalofthisbookistoshowthebeautyandeleganceofrelationalprogramming,whichcapturestheessenceoflogicprogramming.ThebookshowshowtoimplementarelationalprogramminglanguageinScheme,orinanyotherfunctionallanguage,anddemonstratestheremarkableflexibilityoftheresultingrelationalprograms.Asinthefirstedition,thepedagogicalmethodisaseriesofquestionsandanswers,whichproceedwiththecharacteristichumorthatmarkedTheLittleSchemerandTheSeasonedSchemer.FamiliaritywithafunctionallanguageorwiththefirstfivechaptersofTheLittleSchemerisassumed.Forthissecondedition,theauthorshavegreatlysimplifiedtheprogramminglanguageusedinthebook,aswellastheimplementationofthelanguage.Inadditiontorevisingthetextextensively,andsimplifyingandrevisingthe“Laws”and“Commandments,”theyhaveaddedexplicit“Translation”rulestoeasetranslationofSchemefunctionsintorelations.CopyrightContentsForewordPrefaceAcknowledgementsSincetheFirstEdition1.Playthings2.Teaching01dToysNewTricks3.Seeing01dFriendsinNewWays4.DoubleYourFun5.MembersOrnly6.TheFunNeverEnds…7.ABitTooMuch8.JustaBitMore9.ThinIce10.UndertheHoodA.ConnectingtheWiresB.WelcometotheClubAfterwordIndex

Hands-OnComputerVisionwithJulia:BuildcomplexapplicationswithadvancedJuliapackagesforimageprocessing,neuralnetworks,andArtificialIntelligenceExplorethevariouspackagesinJuliathatsupportimageprocessingandbuildneuralnetworksforvideoprocessingandobjecttracking.KeyFeaturesBuildafull-fledgedimageprocessingapplicationusingJuliaImagesPerformbasictoadvancedimageandvideostreamprocessingwithJulia'sAPIsUnderstandandoptimizevariousfeaturesofOpenCVwitheasyexamplesBookDescriptionHands-OnComputerVisionwithJuliaisathoroughguidefordeveloperswhowanttogetstartedwithbuildingcomputervisionapplicationsusingJulia.Juliaiswellsuitedtoimageprocessingbecauseit'seasytouseandletsyouwriteeasy-to-compileandefficientmachinecode.ThisbookbeginsbyintroducingyoutoJulia'simageprocessinglibrariessuchasImages.jlandImageCore.jl.You'llgettogripswithanalyzingandtransformingimagesusingJuliaImages;someofthetechniquesdiscussedincludeenhancingandadjustingimages.Asyoumakeyourwaythroughthechapters,you'lllearnhowtoclassifyimages,clusterthem,andapplyneuralnetworkstosolvecomputervisionproblems.Intheconcludingchapters,youwillexploreOpenCVapplicationstoperformreal-timecomputervisionanalysis,forexample,facedetectionandobjecttracking.YouwillalsounderstandJulia'sinteractionwithTesseracttoperformopticalcharacterrecognitionandbuildanapplicationthatbringstogetherallthetechniquesweintroducedpreviouslytoconsolidatetheconceptslearned.Byendofthebook,youwillhaveunderstoodhowtoutilizevariousJuliapackagesandafewopensourcelibrariessuchasTesseractandOpenCVtosolvecomputervisionproblemswithease.WhatyouwilllearnAnalyzeimagemetadataandidentifycriticaldatausingJuliaImagesApplyfiltersandimproveimagequalityandcolorschemesExtract2Dfeaturesforimagecom

基于Simplorer场路耦合多物理域结合仿真基于Simplorer场路耦合多物理域结合仿真

PLL_ADF4360-8之C言语驱动代码

电动汽车无刷直流电机驱动系统实时仿真-电动汽车无刷直流电机驱动系统实时仿真.rar在设计开发电动汽车的过程中，采用实时数字仿真可实现并行工程，缩短开发时间，节约开发费用。
基于方框图建模工具Simulink建立无刷直流电机驱动系统模型，采用dSPACE实时仿真环境自动生成控制器及被控对象模型实时代码。
实时仿真系统具有与实际系统的硬件接口，可以与实际控制器或电机系统直接相连，构成硬件在回路仿真测试或快速控制原型系统。
实时仿真与真实系统实验结果表明，实时仿真器与实际系统的呼应特性无明显差别，在开发和测试阶段可以代替实际电机系统进行实时闭环测试。
Abstract：Inordertoreducecost,riskanddevelopmenttime,thereal-timesimulatorofelectricvehiclesystemcanbeusedforconcurrentengineering.Animplementationofthereal-timemodelofbrushlessDCmotordrivefortheelectricvehiclebasedonblock-orientedprogrammingtoolSimulinkisproposed.Also,byusingdSPACEenvironment，thereal-timecodeofcontrollerandinverter-motor-sensormodelisdirectlygenerated.Havingthereal-timehardwareinterfacetoactualsystem,thereal-timesimulationsystemcanbedirectlyconnectedtoactualcontrollerorrealinverter-motor-sensorsystemforhardware-in-the-loopsimulationtestaswellasforrapidcontrolprototypingapplications.Experimentalresultsshowthatthereisnoremarkabledifferencebetweentheresponsesoftherealsystemandthereal-timemodel,sothereal-timesimulationsystemcanreplacetherealsysteminthedevelopmentandteststages.

windows+linux+arm开发板+mplayer播放器完成的音乐播放器，代码简单，适合老手上手。

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。