牛牛牛几开始翻倍

本書首先簡要介紹了移動通信發展歷程，使讀者對通信標準有個初步的認識。然后介紹了Rel-15物理層，包括NR-RAN架構、物理層設計要點和幀結構，為后續章節的學習打下基礎。再次，本書重點分析了Rel-16/Rel-17的NR-V2X、5GNTN和5G定位等關鍵技術。尤其是詳細解讀了C-V2X技術演進、C-V2X的特點及應用，NR-V2X直連通信技術，NR-V2X頻譜和信道安排，NR-V2X直連通信物理層、物理層設計及資源分配過程，NR-V2X容量能力、覆蓋能力，C-V2X直連通信安全機制，5G定位技術分類、5G蜂窩定位的需求和基本原理、5G網絡輔助的GNSS定位、5GDL-TDOA定位和5GUL-TDOA定位。最后，本書對5G專網關鍵技術和5GREDCAP涉及的關鍵技術進行了詳細論述，同時展望了未來5GAdvanced技術的發展。

·17.9萬字

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Microsoft Power Platform Enterprise Architecture

Forforward-lookingarchitectsanddecisionmakerswhowanttocraftcomplexsolutionstoservegrowingbusinessneeds,MicrosoftPowerPlatformEnterpriseArchitectureoffersanarrayofarchitecturalbestpracticesandtechniques.Withthisbook,you’lllearnhowtodesignrobustsoftwareusingthetoolsavailableinthePowerPlatformsuiteandbeabletointegratethemseamlesslywithvariousMicrosoft365andAzurecomponents.Unlikemostotherresourcesthatareoverwhelminglylongandunstructured,thisbookcoversessentialconceptsusingconciseyetpracticalexamplestohelpyousavetime.You’lldeveloptheskillsyouneedtoarchitect,design,andmanageacomplexsolutionasyoufollowthejourneyofafictitiousenterprisecustomerastheyentertheworldofPowerPlatform.Throughoutthebook,you’lldiscoverhowtocombinethefunctionalityofPowerApps,PowerAutomate,PowerBI,andPowerVirtualAgentswithvariousmethodologiestoeffectivelyaddressapplicationlifecyclemanagement,security,andextensibility.Finally,you'lllearnhowtoovercomecommonchallengesinmigratingdatatoandfromMicrosoftPowerPlatformusingproventechniques.Bytheendofthisbook,you’llhavethestrategicperspectiveofanenterprisearchitecttomakeaccuratearchitecturaldecisionsforyourcomplexPowerPlatformprojects.

·10.2萬字

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走進下一代互聯網：改變你生活的物聯網

《走進下一代互聯網--將改變你生活的物聯網》敘述清楚、通俗易懂，側重科普，力圖反映下一代互聯網對社會、經濟和生活的改變和應用；《走進下一代互聯網--將改變你生活的物聯網》基于對下一代互聯網知識的普及和應用，在研究方法上采用問答、圖文解讀、比較分析法等，其內容注重社會科學普及，是一部體現時代性、科學性、知識性、實用性的互聯網通俗性讀物。《走進下一代互聯網--將改變你生活的物聯網》針對互聯網技術發展與應用，介紹了互聯網發展、互聯網+的應用、下一代互聯網應用基礎、下一代互聯網的關鍵技術、物聯網與下一代互聯網的融合與演進、智慧城市建設架構及應用六個部分，內容貫穿了互聯網的過去、現在和將來，對信息化的普及具有重要意義。《走進下一代互聯網--將改變你生活的物聯網》是一本面向普通大眾讀者的科普讀物，也可作為職業教育院校計算機相關專業的教材。

·5.5萬字

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React：Cross-Platform Application Development with React Native

Thisbookisfordeveloperswhowanttobuildamazingcross-platformappswithReactNative.

·2.7萬字

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Hands-On Docker for Microservices with Python

Microservicesarchitecturehelpscreatecomplexsystemswithmultiple,interconnectedservicesthatcanbemaintainedbyindependentteamsworkinginparallel.Thisbookguidesyouonhowtodevelopthesecomplexsystemswiththehelpofcontainers.You’llstartbylearningtodesignanefficientstrategyformigratingalegacymonolithicsystemtomicroservices.You’llbuildaRESTfulmicroservicewithPythonandlearnhowtoencapsulatethecodefortheservicesintoacontainerusingDocker.Whiledevelopingtheservices,you’llunderstandhowtousetoolssuchasGitHubandTravisCItoensurecontinuousdelivery(CD)andcontinuousintegration(CI).Asthesystemsbecomecomplexandgrowinsize,you’llbeintroducedtoKubernetesandexplorehowtoorchestrateasystemofcontainerswhilemanagingmultipleservices.Next,you’llconfigureKubernetesclustersforproduction-readyenvironmentsandsecurethemforreliabledeployments.Intheconcludingchapters,you’lllearnhowtodetectanddebugcriticalproblemswiththehelpoflogsandmetrics.Finally,you’lldiscoveravarietyofstrategiesforworkingwithmultipleteamsdealingwithdifferentmicroservicesforeffectivecollaboration.Bytheendofthisbook,you’llbeabletobuildproduction-grademicroservicesaswellasorchestrateacomplexsystemofservicesusingcontainers.

·9.1萬字

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pytest Quick Start Guide

Python'sstandardunittestmoduleisbasedonthexUnitfamilyofframeworks,whichhasitsoriginsinSmalltalkandJava,andtendstobeverbosetouseandnoteasilyextensible.Thepytestframeworkontheotherhandisverysimpletogetstarted,butpowerfulenoughtocovercomplextestingintegrationscenarios,beingconsideredbymanythetruePythonicapproachtotestinginPython.Inthisbook,youwilllearnhowtogetstartedrightawayandgetthemostoutofpytestinyourdailywork?ow,exploringpowerfulmechanismsandpluginstofacilitatemanycommontestingtasks.Youwillalsoseehowtousepytestinexistingunittest-basedtestsuitesandwilllearnsometrickstomakethejumptoapytest-styletestsuitequicklyandeasily.

·3.3萬字

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從云端到邊緣：邊緣計算的產業鏈與行業應用

本書在介紹5G時代邊緣計算內涵和核心技術的基礎上，分析了邊緣計算產業鏈的基本情況，涵蓋上游云服務商和硬件設備廠商、中游電信運營商及邊緣計算運營和管理服務提供商、下游OTT廠商及智能終端和應用開發商等。本書重點聚焦5G時代邊緣計算可重點應用的行業，包括交通行業（涵蓋自動駕駛、智能網聯、智能交通、智慧道路）、安防行業、云游戲行業、工業互聯網、能源互聯網、智慧城市和智能家居等，結合這些行業的發展趨勢，深入闡述邊緣計算在其中的實踐進展和案例。本書適合通信行業、邊緣計算相關行業的人員閱讀，也適合相關專業在校本科生、碩士生閱讀，以及對邊緣計算感興趣的讀者閱讀。

·19.6萬字

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Learn Web Development with Python

IfyouwanttodevelopcompletePythonwebappswithDjango,thisLearningPathisforyou.ItwillwalkyouthroughPythonprogrammingtechniquesandguideyouinimplementingthemwhencreating4professionalDjangoprojects,teachingyouhowtosolvecommonproblemsanddevelopRESTfulwebserviceswithDjangoandPython.Youwilllearnhowtobuildablogapplication,asocialimagebookmarkingwebsite,anonlineshop,andane-learningplatform.LearnWebDevelopmentwithPythonwillgetyoustartedwithPythonprogrammingtechniques,showyouhowtoenhanceyourapplicationswithAJAX,createRESTfulAPIs,andsetupaproductionenvironmentforyourDjangoprojects.Lastbutnotleast,you’lllearnthebestpracticesforcreatingreal-worldapplications.BytheendofthisLearningPath,youwillhaveafullunderstandingofhowDjangoworksandhowtouseittobuildwebapplicationsfromscratch.ThisLearningPathincludescontentfromthefollowingPacktproducts:LearnPythonProgrammingbyFabrizioRomano.DjangoRESTfulWebServicesbyGastónC.Hillar.DjangoDesignPatternsandBestPracticesbyArunRavindran.

·19.7萬字

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Hands-On Full：Stack Development with Swift

Thisbookisfordeveloperswhoarelookingtobuildfull-stackwebandnativemobileapplicationsusingSwift.AnunderstandingofHTML,CSS,andJavaScriptwouldbebeneficialwhenbuildingserver-renderedpageswithVapor.

·6.3萬字

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Progressive Web Application Development by Example

Areyouadeveloperthatwantstocreatetrulycross-platformuserexperienceswithaminimalfootprint,freeofstorerestrictionsandfeaturescustomerswant?ThenyouneedtogettogripswithProgressiveWebApplications(PWAs),aperfectamalgamationofwebandmobileapplicationswithablazing-fastresponsetime.ProgressiveWebApplicationDevelopmentbyExamplehelpsyouexploreconceptsofthePWAdevelopmentbyenablingyoutodevelopthreeprojects,startingwitha2048game.Inthisgame,youwillreviewpartsofawebmanifestfileandunderstandhowabrowserusespropertiestodefinethehomescreenexperience.Youwillthenmoveontolearninghowtodevelopanduseapodcastclientandbeintroducedtoserviceworkers.Theapplicationwilldemonstratehowserviceworkersareregisteredandupdated.Inadditiontothis,youwillreviewacachingAPIsothatyouhaveafirmunderstandingofhowtousethecachewithinaserviceworker,andyou'lldiscovercorecachingstrategiesandhowtocodethemwithinaserviceworker.Finally,youwillstudyhowtobuildaticketsapplication,whereinyou’llapplyadvancedserviceworkertechniques,suchascacheinvalidation.Also,you'lllearnabouttoolsyoucanusetovalidateyourapplicationsandscaffoldthemforqualityandconsistency.Bytheendofthebook,youwillhavewalkedthroughbrowserdevelopertools,nodemodules,andonlinetoolsforcreatinghigh-qualityPWAs.

·7.7萬字

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NB-IoT原理和優化

本書以NB-IoT網絡的原理和目前的應用為出發點，通過大量的實例詳細介紹了NB-Iot網絡的基本原理、網絡結構以及基站安裝、網絡維護、網絡優化各項工作的要點與細節，最后重點闡述了NB-Iot在5G時代的發展，展望了后續5G時代NB-IoT的發展和應用。本書適合NB-IoT網絡規劃設計、工程施工、維護人員閱讀，以及對NB-IoT技術感興趣的人員參考閱讀，也可以作為大專院校相關專業的輔導教材。

·17.5萬字

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移動物聯網智能通信與計算

隨著物聯網、5G通信技術和大數據的發展，支持邊緣計算的終端設備的快速普及與低時延高可靠通信需求的日益提升，傳統的資源管理與優化技術已經無法滿足移動物聯網用戶的多樣化需求。為提升移動網絡通信容量以及推動移動通信系統可持續發展，本書對智能通信與計算融合技術進行了闡述，包括面向通信與計算融合的泛在智能網絡、面向通信與計算融合的智能網絡服務延伸和面向通信與計算融合的智能網絡算力增強三個部分。本書適合于通信工程、計算機科學和軟件工程專業的高年級本科生和研究生，以及從事IT領域的工程技術人員學習和參考。

·12.8萬字

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INSTANT CloudFlare Starter

Writtenasapracticalguide,CloudFlareStarterwillshowyouallyouneedtoknowinordertoeffectivelyimproveyouronlinepresenceinamultitudeofdifferentways.CloudFlareStarterisapracticalyetaccessibleguideforwebsiteownerslookingtooptimizetheirsiteforoptimumsecurityandmaximumperformance.

·8222字

會員

Vue.js Quick Start Guide

Vue.jsisthelatesttrendingfrontendframework.Simplicity,reactivity,and?exibilityaresomeofthekeybenefitsthatVueofferstodevelopers.ThisbookwillhelpyoulearneverythingyouneedtoknowtobuildstunningreactivewebappswithVue.js2quicklyandeasily.ThisbookwilltakeyouthroughtheVue2framework.YouwillstartbylearningthedifferentVueinstallationoptions:CDN,NPM,andVueCLI.ThenwewilllookatthecoreconceptsofVue:templatesandcomponents–waystomodularizeVuecode.Youwilllearnhowtoutilizedirectives,whichareVue-specificHTMLattributeswithadditionalfeatures.Also,youwillseehowVueusesastreamlinedapproachtodevelopment,withreusablemethods,computedproperties,andwatchers,andhowitcontrolsstatewiththehelpofitsdataoption.YouwilllearnabouttheconceptsofreactiveprogramminginVue,andhowtounderstandcommunicationbetweenparentandchildcomponents.Wewilltakealookatpropsandslots,workingwithCSS,filters,andmixins.WewillalsolookatwaystoaddtransitionsandanimationstoVueapps.ThenyouwillextendVuebybuildingcustomdirectivesandyourownplugins.Finally,youwilllearnaboutVuex–aVuepluginthatallowsustocentralizestate,andalsointroduceNuxt,whichisaframeworkthatbuildsontopofVueandsolvessomeissuesofsingle-pageapplications.Afterlearningaboutthesecomponents,youwillbereadytobuildyourownreactivewebappswithVue.js2.

·3.4萬字

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5G物聯網端管云實戰

本書系統介紹了5G物聯網端管云協同設計理念，主要內容包括基于STM32單片機的感知終端開發、基于5GNB-IoT和NR的感知數據處理與傳輸、采用公有云和自建云的物聯數據存儲與Grafana可視化平臺，最后通過4個典型的物聯網綜合應用和兩個物聯網競賽獲獎實戰案例，助力讀者掌握面向端管云協同設計的物聯網應用項目開發。為提高學習效率與增強使用效果，本書為5GNB-IoT感知數據處理部分提供了完整的操作步驟和源代碼。本書適用于物聯網應用開發者實戰指導參考，也可作為高等院校物聯網領域相關課程的實踐指導書。

·6.2萬字

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Django 2 Web Development Cookbook

Djangoisaframeworkdesignedtobalancerapidwebdevelopmentwithhighperformance.Ithandleshighlevelsofusertrafficandinteraction,integrateswithavarietyofdatabases,andcollectsandprocessesdatainrealtime.Thisbookfollowsatask-basedapproachtoguideyouthroughdevelopingwiththeDjango2.1framework,startingwithsettingupandconfiguringDockercontainersandavirtualenvironmentforyourproject.You'lllearnhowtowritereusablepiecesofcodeforyourmodelsandmanagedatabasechanges.You'llworkwithformsandviewstoenterandlistdata,applyingpracticalexamplesusingtemplatesandJavaScripttogetherfortheoptimumuserexperience.Thiscookbookhelpsyoutoadjustthebuilt-inDjangoadministrationtofityourneedsandsharpensecurityandperformancetomakeyourwebapplicationsasrobust,scalable,anddependableaspossible.You'llalsoexploreintegrationwithDjangoCMS,thepopularcontentmanagementsuite.Inthefinalchapters,you'lllearnprogramminganddebuggingtricksanddiscoverhowcollectingdatafromdifferentsourcesandprovidingittoothersinvariousformatscanbeabreeze.Bytheendofthebook,you'lllearnhowtotestanddeployprojectstoaremotededicatedserverandscaleyourapplicationtomeetuserdemands.

·8.7萬字

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ReasonML Quick Start Guide

ReasonML,alsoknownasReason,isanewsyntaxandtoolchainforOCamlthatwascreatedbyFacebookandismeanttobeapproachableforwebdevelopers.AlthoughOCamlhasseveralresources,mostofthemarefromtheperspectiveofsystemsdevelopment.Thisbook,alternatively,exploresReasonfromtheperspectiveofwebdevelopment.You'lllearnhowtouseReasontobuildsafer,simplerReactapplicationsandwhyyouwouldwanttodoso.Reasonsupportsimmutabilitybydefault,whichworksquitewellinthecontextofReact.InlearningReason,youwillalsolearnaboutitsecosystem–BuckleScript,JavaScriptinteroperability,andvariousnpmworkflows.Welearnbybuildingareal-worldappshell,includingaclient-siderouterwithpagetransitions,thatwecancustomizeforanyReasonproject.You'lllearnhowtoleverageOCaml'sexcellenttypesystemtoenforceguaranteesaboutbusinesslogic,aswellaspreventingruntimetypeerrors.You'llalsoseehowthetypesystemcanhelpoffloadconcernsthatweoncehadtokeepinourheads.We'llexploreusingCSS-in-Reason,howtouseexternalJSONinReason,andhowtounit-testcriticalbusinesslogic.Bytheendofthebook,you'llunderstandwhyReasonisexplodinginpopularityandwillhaveasolidfoundationonwhichtocontinueyourjourneywithReason.

·3.2萬字

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Angular 6 for Enterprise：Ready Web Applications

Thisbookisfordeveloperswhowanttoconfidentlydeliverhigh-qualityandproduction-gradeAngularappsfromdesigntodeployment.WeassumethatyouhavepriorexperienceinwritingaRESTfulAPIwiththetechstackofyourchoice;ifyoudon't,youcanstillgainalotofbenefitfromthisbook,whichfocusesontheentirescopeoffrontenddevelopment,fromdesigntodeployment!

·8.4萬字

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Learning QGIS 2.0

Ashortbookwithalotofhands-onexamplestohelpyoulearninapracticalway.Thisbookisgreatforusers,developers,andconsultantswhoknowthebasicfunctionsandprocessesofaGISbutwanttoknowhowtouseQGIStoachievetheresultstheyareusedtoafull-fledgedGIS.

·2.1萬字

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人際網絡

本作品貫徹落實國務院新聞辦公室發布的《攜手構建網絡空間命運共同體》白皮書中關于“構建更加緊密的網絡空間命運共同體”的政策主張。全書提出建設和發展“以人為中心”的中國式網絡空間——人際網絡，為實現中國式現代化提供了系統學領域的理論貢獻。人際網絡是以網絡空間為基礎，通過網絡在個人之間建立一對一、一對多的連接，實現人人互聯。新時代中國式網絡空間的討論已成為學術界和產業界的熱門話題。如果說國際標準的網絡空間是物的邏輯，創新方向是通過時間和空間的連接實現橫向大發展，那么新時代中國式的網絡空間就是人的邏輯，通過滿足個人需求實現縱向發展。

·2.4萬字

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