https://download.csdn.net/download/qq_41739364/86339152

Thei.MXRT1050processorsareNXP'slatestadditionstoagrowingfamilyofreal-timeprocessingproductsofferinghigh-performanceprocessingoptimizedforlowestpowerconsumptionandbestreal-timeresponse.Thei.MXRT1050processorsfeatureNXP'sadvancedimplementationoftheARM®Cortex®-M7core.

struts2-2.2.1-al完整版本，目前这个版本不好找，分享给大家，原压缩包太大，重新给压缩成7z格式，7z,rar或360zip都可解压

连续光谱的同步辐射光通过入射狭缝照射到光栅单色器后，在出射的单色光λ中总是不可避免的混有基波λ的高级次谐波λn=λ/n。
采用自制的33001p/mm金膜自支撑透射光栅和美国IRD公司的AXUVI00G光电二极管探测器，定量研究了光谱辐射标准和计量光束线在5~40nm波段的高次谐波。
研究了Zr，Si，Al和Al/Mg/Al滤片在不同能量范围对高次谐波的抑制作用，给出了实验数据和曲线。
在5~40nm波段，适当的选用Zr，Si，Al和Al/Mg/Al滤片可有效地抑制高次谐波，在5~34nm波段将高次谐波与基波的信号强度比例控制在8.06%以内，经量子效率修正后小于3.08%，在35~40波段经探测器量子效率修正后高次谐波比例小于10.00%。

在已有理论基础之上，采用严格的计算方法对激光器实现太赫兹(THz)波的辐射进行了可能性分析。
利用传递矩阵法，通过Matlab软件计算了基于AlGaN/GaN材料体系的三能级量子级联激光器导带子能级与电子波函数的分布，详细分析了由该材料特有的极化效应所产生的极化场，得出了在近共振条件下偶极跃迁元、外加电场、垒层Al组分及导带子能级能级差之间的关系，并研究了它们对激光器性能的影响。
分析结果表明，实现受激辐射的条件非常严格，Al组分取0.15或0.16时较为适宜，同时外加电场需大于63kV/cm，但不能过大，这样才能满足近共振条件，实现粒子数反转达到太赫兹量子级联激射。
在Al组分为0.15，外加电

结合飞机起动机钛合金叶轮的修复需要，研究了Ti-6Al-3.5Mo-1.8Zr-0.23Si(TC11)钛合金激光熔化沉积修复工艺及界面的组织与力学性能。
结果表明，激光熔化沉积TC11钛合金及界面重熔区具有典型的魏氏组织特征，基体热影响区组织逐渐由魏氏组织向双态组织过渡；
激光熔化沉积TC11钛合金的抗拉强度高于界面过渡区及基体，而塑性稍低于基体。
通过采用逐点熔化沉积的方法对叶轮受损叶片进行了修复，经加工检验后通过了超转试验考核，实现了装机应用。

leetcodepython题解，包含大量leetcode题目的解法，源代码，python实现CourseSchedule21.4.4Numberofislands14.5HeapsMergeKSortedLinkedLists1.5.1KthLargestElementinanArray1.5.2Arrays1.62sum‖l1.62SumⅢ1.6.2ContainsDuplicate1.6.3RotateArray1.643SumSmaller1.653Sumclosest1.663Sum1.6.7TwoSum1.68PlusOne1.6.9BestTimetoBuyandSellStock1.6.10Shortestworddistance1.6.11Movezeroes1.6.12ContainsDuplicate1.6.13MajorityElement1.6.14RemoveDuplicatesfromSortedArray1.6.15NestedListWeightSum1.6.16NestedListWeightedSumIl1.6.17Removeelement1.6.18IntersectionofTwoArraysll1.6.19MergeSortedArrays1.6.20ReverseVowelsofaString1.6.21IntersectionofTwoArrays1.6.22Containerwithmostwater1.6.23ProductofArrayExceptSelf1.6.24TrappingRainWater1.6.25MaximumSubarray1.6.26BestTimetoBuyandSellStockIl1.6.27FindMinimuminRotatedSortedArray1.6.28Pascal'sTriangle1.6.29Pascal'sTriangle‖l1.6.30SummaryRanges1.6.31MissingNumber1.6.32StringsValidAnagram1.7.1Validpalindrome1.7.2WordPattern1.7.3ValidParentheses1.7.4IsomorphicStrings1.7.5ReverseString1.7.6BitManipulationSumofTwoIntegers18.1SingleNumber18.2Singlenumber‖18.3SingleNumberIll1.8.4Maths1.9ReverseInteger1.9.1Palindromenumber19.2Pow(x,n)19.3Subsets1.94Subsets‖195FractiontoRecurringDecimal19.6Excelsheetcolumnnumber19.7Excelsheetcolumntitle19.8FactorialTrailingzeros199HappyNumber1.9.10Countprimes1.9.11Plusone19.12DivideTwoIntegers19.13MultiplyStrings1.9.14MaxPointsonaline1.9.15ProductofArrayExceptSelf19.16Powerofthree19.17IntegerBreak1.9.18Poweroffour9.19Adddigits1.9.20UglyNumber1.9.21glyNumberll1.9.22SuperUglyNumber19.23FindKpairswithsmallestsums1.924SelfCrossing1.9.25Paintfence1.9.26Bulbswitcher19.27Nimgame1.9.28Matrix1.10RotateImage1.10.1SetmatrixZeroes1.10.2Searcha2DMatrix1.10.3Searcha2dMatrixl1.10.4SpiralMatrix1.10.5SpiralMatrix‖l1.10.6DesignLRUCache1.11.1IntroductionMyLeetcodeSolutionsinPythonThisbookwillcontainmysolutionsinPythontotheleetcodeproblems.Currently,willjusttrytoposttheacceptedsolutions.TheplanistoeventuallyincludedetailedexplanationsofeachandeverysolutionamdoingthisjustforfunLinkedListCycleLinkedListCvcleGivenalinkedlist,determineifithasacycleinitFollowup:Canyousolveitwithoutusingextraspace?Url:https://leetcode.com/problems/linked-list-cycle/Definitionforsingly-linkedlistclassListNodeobject)###definit(self,x)self,val=xself,nextNoneclassSolution(object):defhasCycle(self,head)IItypehead:ListNodertype:boolIIIIifhead=nonereturnfalseelsefastheadslow=headWhilefastnoneandfast.nextnonesloW=slownextfastfast.nextnextiffast=slow:breaki千fastNoneorfast.next=nonereturnFalseeliffast=slowreturntruereturnfalseLinkedListCycleReverseLinkedListReverseLinkedlistReverseasinglylinkedlistUrl:https://eetcode.com/problems/reverse-linked-list/definitionforsingly-linkedlist#tclassListNode(object):##def-init(self,x)self.∨al=xselfnextnoneclassSolution(object):defreverseList(self,head)11IIl1typehead:ListNodertype:ListNodeifhead=nonereturnnoneelifhead!=noneandheadnext=nonereturnheadelsetempNonenextnodenoneWhileheadNonenextnodeheadnexthead.nexttemptemp=headheadnextnodereturntempDeletenodeinalinkedlistDeletenodeinalinkedlistWriteafunctiontodeleteanode(exceptthetail)inasinglylinkedlist,givenonlyaccesstothatnodeSupposedthelinkedlistis1->2->3->4andyouaregiventhethirdnodewithvalue3,thelinkedlistshouldbecome1->2->4aftercallingyourfunctionUrl:https://eetcode.com/problems/delete-node-in-a-linked-list/Definitionforsingly-linkedlistclassListNode(object):#def-init(self,x)#self,valxself,nextNoneclasssolution(object):defdeleteNode(self,node):IIlIItypenode:ListNodertype:voidDonotreturnanythingmodifynodein-placeinsteadI111fnode=nonepasse⊥se:nextnodenode.nextnodevalnextnodevalnode.nextnextnode,next

腾讯2017年全球人工智能人才调查报告，全球Al领域人才约30万，而市场需求在百万量级。
其中，高校领域约10万人，产业界约20万人。
全球共有367所具有人工智能研究方向的高校，每年毕业Al领域的学生约2万人，远远不能满足市场对人才的需求。

IT项目管理（英文版.第四版）/（美）施瓦尔布（Schwalbe，K.）著.—北京:机械工业出版社，2006.7（经典原版书库）课后习题答案语言——英文Class130613Team3MadeByWangWanHongorganizationscollectandcontrolanentiresuiteofprojectsorinvestmentsasonesetofinterrelatedactivitiesinaportfolio.Theprojectportfoliomanagementingeneralisdividedintofivelevels,fromthesimpletothecomplexare:1]Putalltheitemsintoadatabase2Settingprioritiesfortheitemsinthedatabase3]Accordingtothedifferenttypeofinvestment,theseitemsweredividednto2-3Budget4RunKnowledgebaseautomatically5ApplythemodernPortfolioTheory7.WhataretheskillsrequiredforProjectManagers?Answer:Projectmanagersneedawidevarietyofskills.Theyneedbothhard"andsoftskillsHardskillsincludeproductknowledgeandknowinghowtousevariousprojectmanagementtoolsandtechniquesoSoftskillsincludebeingabletoworkwithvarioustypesofpeople.1)Communicationskills:Listens,persuades2)Organizationalskills:Plans,setsgoals,analyzes3)Team-buildingskills:Showsempathy(同感,共鸣),motivates,promotesespritdecorps4)Leadershipskills:Setsexamples,providesvision(bigpicture),delegatespositive,energetic5]Copingskills:Flexible,creative,patient,persistent6Technologyskills:Experience,projectknowledge8.ExpandPMiandPMP?AnswerPMI:ProjectManagementInstitutePMP:ProjectManagementProfessionaChapter-21.ExplainSystemApproachofProjectmanagement?AnswersSystemsapproachdescribesaholistic(A])andanalyticalapproachtoPage3Class130613Team3MadeByWangWanHongsolvingcomplexproblemsThreepartsinclude:Systemsphilosophy:Viewthingsassystems,whichareinteracting(fh互作用)componentsthatworkwithinanenvironmenttofulfillsomepurposeSystemsanalysisisaproblem-solvingapproach1)Definethescopeofthesystem2Divideintocomponents3Identifyandevaluatingsystemproblems,opportunities,constraintsandneeds4]Examinealternativesolutionforimprovingthecurrentsituation5)Identify(f)ansolutionoractionplanandexaminethatplanagainsttheentiresySystemsmanagement:Addressbusiness,technological,andorganizationalissuesassociatedwithcreating,maintaining,andmakingchangestosystems1Identifyandsatisfythekeystakeholders2Doingthebestfortheorganization2.Whatarethethreebasicorganizationalstructures?Answer:Threegeneralclassificationsoforganizationalstructuresarefunctional,project,andmatrix.Afunctionalorganizationalstructureisthehierarchy.Functionalmanagersorvicepresidentsinspecialtiesreporttotheceo.Thestaffshavespecializedskills.Aprojectorganizationalstructurealsohasahierarchicalstructure,buttheirprogrammanagersreporttotheceoAmatrixorganizationalstructurerepresentsthemiddlegroundbetweenfunctionalandprojectstructures3.DrawandexplainthephasesofthetraditionalprojectLifeCycle?Answer:Page4Class130613Team3MadeByWangWanHongProjectFeasibilityProjectAcquisitionConceptDevelopmentImplementationClose-outFigurePhasesofthetraditionalprojectlifecycleIntheconceptphaseofaproject,managersusuallybrieflydescribetheproject-theydevelopaveryhigh-levelorsummaryplanfortheproject,whichdescribestheneedforprojectandbasicunderlyingconceptInthedevelopmentphase,theprojectteamcreatesmoredetailedprojectplans,amoreaccuratecostestimate,andamorethoroughwbsIntheImplementationphase,theprojectteamcreatesadefinitiveorveryaccuratecostestimate,deliverstherequiredwork,andprovidesperformancereportstostakeholdersIntheclose-outphase,alloftheworkiscompleted,andthereshouldbesomesortofcustomeracceptanceoftheentireproject4.Whatarephaseexits?Answer:phaseexitsarethephase-endreviewofkeydeliverablesthatallowtheorganizationtoevaluatetheprojectsperformanceandtotakeimmediateactiontocorrectanyerrorsorproblems5.Howcantopmanagementhelpprojectmanagers?Answer:TopmanagementcanhelpprojectmanagersinthefollowingwaysTheprojectmanagerneedsadequate(足够的)resourcesThebestwaytokillaprojectistowithhold(E)therequiredmoney,humanresources,andvisibilityfortheproject.Iftheprojectmanagershavetopmanagementcommitment,theywillalsohaveadequateresourcesandnotbedistractedbyeventsthatdonotaffecttheirspecificprojectsProjectmanagersoftenrequireapprovalforuniqueprojectneedsinatimelymannerProjectmanagersmusthavecooperationfrompeopleinotherpartsofthePage5Class130613Team3MadeByWangWanHongorganizationProjectmanagersoftenneedsomeonetomentorandcoachthemonleadershipissuesChapter-31.ExplainProjectmanagementprocessgroups?AnswerInitiatingPlanningExecutingandControllingClosingProcessProcessProcessProcessProcessGroupGrouproupGroupGroupActivityStartFinishTimeMonitoringInitiatingExecutingandClosingControllig∩,,PlanningkProjectmanagementprocessgroupsprogressfrominitiationactivitiestoplanningactivities,executingactivities,monitoringandcontrollingactivities,andclosingactivities.Initiatingprocessesincludedefiningandauthorizingaprojectorprojectphase.Planningprocessesincludedevisingandmaintainingaworkablescheme.ExecutingprocessesincludecoordinatingpeopleandotherresourcesMonitoringandcontrollingprocessesincluderegularlymeasuringandmonitoringprogresstoensurethattheprojectteammeetstheprojectobjectives.ClosingprocessesincludeformalizingacceptanceoftheprojectorprojectphaseandendingitefficientlyPage6Class130613Team3MadeByWangWanHongChaptter-41.DrawProjectManagementFramework?Answer:TheProjectManagementFrameworkisProjectPortfolioProject1Project9KnowledgeAreasToolsandProject3EySEnterpriseProject4uccessCorefunctionstechniquesProject5TimeCostQualityProject6MatMgt.MgtMat1gProjectIntegrationManagementProjectStakeholders'SuccessedsandexpectatonsHRComm.RiskProcure.G++MatMatMgtMatFacilitatingFunctions2.ListthevariousProjectIntegrationManagementProcesses?Answer1)Developtheprojectcharter,whichinvolvesworkingwithstakeholderstocreatethedocumentthatformallyauthorizesaproject-thecharter2)Developthepreliminaryprojectscopestatement,whichinvolvesurtherworkwithstakeholders,especiallyusersoftheproject'sproducts,services,orresults,todevelopthehigh-levelscoperequirements.Theoutputofthisprocessistheprocessisthepreliminaryprojectscopestatement3Developtheprojectmanagementplan,whichinvolvescoordinatingallplanningeffortstocreateaconsistent,coherentdocument-theprojectmanagementplan4Directandmanageprojectexecution,whichinvolvescarryingouttheprojectmanagementplanbyperformingtheactivitiesincludedinit.Theoutputsofthisprocessaredeliverables,requestedchanges,workperformanceinformation,implementedchangerequest,correctiveactions,preventiveactions,anddefectrepair.5)Monitorandcontroltheprojectwork,whichinvolvesoverseeingPage7Class130613Team3MadeByWangWanHongprojectworktomeettheperformanceobjectiveoftheproject.Theoutputsofthisprocessarerecommendeddefectrepair,andrequestedchanges6)Performintegratedchangecontrol,whichinvolvescoordinatingchangesthataffecttheproject'sdeliverablesandorganizationalprocessassets.Theoutputsofthisprocessincludeapprovedandrejectedchangerequests,approvedcorrectiveandpreventiveactions,approvedandvalidateddefectrepair,deliverables,andupdatestothepIrojectmanagementplanandprojectscopestatement.7Closetheproject,whichinvolvesfinalizingallprojectactivitiestoformallyclosetheprojectOutputsofthisprocessincludefinalproducts,services,orresults,administrativeandcontractclosureprocedures,andupdatestoorganizationalprocessassets3.WhatisSWotanalysis?Answer:SWOTAnalysisisastrategicplanningmethodusedtoevaluatetheStrengths,Weaknesses,Opportunities,andThreatsinvolvedinaprojectorinabusinessventure.Itinvolvesspecifyingtheobjectiveofthebusinessventureorprojectandidentifyingtheinternalandexternalfactorsthatarefavorableandunfavorabletoachievingthatobjective4.WhatisaProjectcharterdocument?Answer:Aprojectcharterisadocumentthatformallyrecognizestheexistenceofaprojectandprovidesdirectionontheproject'sobjectivesandmanagement5.Whatisscopestatementdocument?Answer:ScopeStatementisadocumentfortherighttoreachacommonunderstandingofprojectscopeaswellastheconfirmation.Itdescribesindetailwhatworkshouldbeaccomplishedintheproject,andisanimportanttooltopreventthespreadofthescope.Scopestatementshouldincludetheoverallprojectobjectivesanddescription,productdescription,allprojectdeliverables,aswellasasynthesisofthedeterminantsofsuccessoftheprojectdescriptions6.Whatisscopecreeps?Answer:Scopecreepisthetendencyofaprojecttoincludemoretasksortoimplementmoresystemsthanoriginallyspecified,whichoftenleadstoPage8Class130613Team3MadeByWangWanHonghiigherthanplannedprojectcostsandanextensionoftheinitialimplementationdate.Inotherwordsitbasicallymeansafeaturethatwasinitiallythoughttobesimplethat'sexplodinginscale7.Whatarethecommonelementsofaprojectmanagementplan?AnsweroIntroductionoroverviewoftheproject1)Projectname2Projectdescriptionitsneed3Sponsor'sname4NamesofthePMProjectTeamdEliverables6Listofreferencematerials7)ListofdefinitionsandacronymsoDescriptionofhowtheprojectisorganizedOrganizationalcharts2Projectresponsibilities3Otherorganizationalorprocess-relatedinformationManagementandtechnicalprocessesusedontheproject1)ManagementobjectivesProjectControls3RiskManagement4staffing5TechnicalProcessesoWorktobedone,schedule,andbudgetinformation1)Majorworkpackages2)Keydeliverables3)Otherwork-relatedinformation4Summaryschedule5Detailedschedule6Otherschedule-relatedinformation7Summarybudgets8Detailedbudget9)OtherbudgetrelatedinformationPage9Class130613Team3MadeByWangWanHong8.Whatisstakeholderanalysis?Answer:Stakeholderanalysisisanimportanttechniqueforstakeholderidentificationanalyzingtheirneeds.Itisusedtoidentifyallkeystakeholderswhohavevestedinterestintheissueswithwhichtheprojectisconcerned.Theaimofstakeholderanalysisprocessistodevelopastrategicviewofthehumanandinstitutionallandscape,andtherelationshipsbetweenthedifferentstakeholdersandtheissuestheycareaboutmost9.ExplainCCBsAnswer:CCBisaChangeControlBoardforshort.CCBsprovideguidelinesforpreparingchangerequests,evaluatechangerequests,andmanagetheimplementationofapprovedchanges10.Explain48-hourspolicy?Answer:A"48-hourpolicy"canhelptaskleadersonalargeinformationtechnologyprojectreachagreementsonkeydecisionsorchangeswithintheirexpertiseandauthority.Itallowsprojectteammemberstomakeadecisionandhave48hourstoseekapprovalfromtopmanagement.Iftheteamdecisioncannotbeimplemented,managementhas48hourstoreverseadecision;otherwise,theteamsdecisionisapprovedChapter-51.WhatisProjectScopeManagement?Answer:Projectscopemanagementisthedefinitionaboutwhatisincludedandwhatisnotincludedintheprojectandtheprocessofcontrolling.Thisprocessensuresthattheprojectteamandstakeholdershaveacommonunderstandingoftheprojectproductsastheprojectresultandtheprocessesusedinproducingtheseproducts.Themainprocessesare:Scopeplan;Scopedefinition;CreateWBS;Scopeconfirm;Scopecontrol2.ListthevariousProjectscopemanagementProcesses?AnswereScopeplanningDecidinghowthescopewillbedefined,verified,andcontrolledandhowthewbswillbecreatedPage10

采用激光诱导击穿光谱（LIBS）技术结合偏最小二乘判别分析（PLS-DA）对新疆、青海和俄罗斯的白色软玉进行产地研究。
选取产自新疆（和田、于田、且末）、青海（格尔木）、俄罗斯（贝加尔湖）的146个白色软玉样品作为样品集，从样品集中随机抽取111个样品作为校正集，用于建立PLS-DA识别模型，剩余35个样品作为验证集，用于检验PLS-DA识别模型的预测效果。
采用LIBS对三个产地的软玉样品进行成分分析，选择Na、K、Al、Li、Be、Mn、Sr、Zr、Ba、Y、Ce作为目标元素，并选取589.995，766.490，396.152，670.793，313.042，257.610，407.771，389.138，455.403，437.493，401.239nm处的谱线作为目标元素的分析谱线，选取Si元素作为内标元素，以其在288.158nm处的谱线作为内标元素分析谱线，分别计算各目标元素与内标元素的谱线强度的比值Rx，由Rx组成自变量矩阵，用于模型的建立与预测。
实验结果表明，采用LIBS结合PLS-DA建立的产地识别模型，其校正自变量和验证自变量与实际分类变量的相关系数都大于0.9

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。