不朽情缘外国人视频

Blockchainhasbeenthehottopicoflatethankstocryptocurrencies.Tomakemattersmoreinteresting,thefinancialmarketislookingforwaystoreduceoperationalcostsandgeneratenewbusinessmodels,andthisiswhereblockchainsolutionscomeintothepicture.Inadditiontothis,withInternetofThings(IoT)trendingandArduino,RaspberryPi,andotherdevicesfloodingthemarket,youcannowcreatecheapdevicesevenathome.Hands-OnIoTSolutionswithBlockchainstartswithanoverviewofIoTconceptsinthecurrentbusinessscenario.ItthenhelpsyoudevelopyourowndeviceontheIBMWatsonIoTplatformandcreateyourfirstIoTsolutionusingWatsonandIntelEdison.OnceyouarefamiliarwithIoT,youwilllearnaboutBlockchaintechnologyanditsusecases.YouwillalsoworkwiththeHyperledgerframeworkanddevelopyourownBlockchainnetwork.Asyouprogressthroughthechapters,you'llworkwithproblemstatementsandlearnhowtodesignyoursolutionarchitecturesothatyoucancreateyourownintegratedBlockchainandIoTsolution.Thenextsetofchapterswillexplainhowtoimplementend-to-endBlockchainsolutionswithIoTusingtheIBMCloudplatform.Bytheendofthisbook,youwillhavemasteredtheconvergenceofIoTandBlockchaintechnologyandexploitedthebestpracticesanddriverstodevelopabulletproofintegratedsolution.

·3.3萬字

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奇妙的數(shù)學：激發(fā)大腦潛能的經(jīng)典名題（升級版）

在人類的歷史長河中，數(shù)學家們總結(jié)發(fā)現(xiàn)過許多奇妙的數(shù)學問題，它們?nèi)缫箍罩械姆毙牵W爍著熠熠星輝，體現(xiàn)了客觀世界的規(guī)律之美、人類的智慧之美以及自然界的和諧之美。直到今天，這些經(jīng)典的數(shù)學問題仍然受到大家的喜愛。閱讀并思考這些問題，是啟迪數(shù)學思維、培養(yǎng)興趣愛好、拓寬知識視野的好方法。本書精選了32個專題，每個專題都以故事的形式分享了數(shù)學問題背后的歷史故事及人物軼事，設(shè)置了同類的例題進行詳細講解，還精選了8道習題供讀者練習提升。快來和古今中外的數(shù)學家、物理學家等歷史上的超強大腦們，做一次穿越時空的親密接觸吧！本書適合作為小學中高年級學生和初中生的數(shù)學課外讀物，也可供數(shù)學愛好者閱讀。

·9.4萬字

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Data Visualization：a successful design process

Acomprehensiveyetquickguidetothebestapproachestodesigningdatavisualizations,withrealexamplesandillustrativediagrams.Whateverthedesiredoutcomeensuresuccessbyfollowingthisexpertdesignprocess.Thisbookisforanyonewhohasresponsibilityfor,orisinterestedintryingtofindinnovativeandeffectivewaystovisuallyanalyzeandcommunicatedata.Thereisnoskill,noknowledgeandnorole-basedpre-requisitesorexpectationsofanyonereadingthisbook.

·5.1萬字

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圖像處理的分數(shù)階微積分方法

分數(shù)階微積分研究的是非整數(shù)階的微分和積分，可實現(xiàn)的階數(shù)靈活且自由度大，所以在圖像處理領(lǐng)域的應(yīng)用得到越來越多的關(guān)注。本書通過特定的分數(shù)階微積分定義與圖像處理領(lǐng)域的重要工具——傅里葉變換和分數(shù)階傅里葉變換，建立分數(shù)階微積分與圖像處理的關(guān)系。全書共7章，分別是緒論、圖像處理及分數(shù)階微積分基礎(chǔ)、分數(shù)階微積分與信號處理的關(guān)系、基于分數(shù)階變階微分的圖像去噪方法、圖像復原的分數(shù)階偏微分方法、圖像分割的分數(shù)階微積分方法和圖像增強的分數(shù)階微積分方法。本書論述清晰，適合計算機圖形處理領(lǐng)域的研究人員、對分數(shù)階微積分應(yīng)用感興趣的讀者閱讀，也適合作為高等院校相關(guān)專業(yè)學生的參考書。

·5.8萬字

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簡明實用速算法：高位分段累加算術(shù)（第2版）

本書以高位分段累加計算的方法，全面系統(tǒng)地介紹了實數(shù)加、減、乘、除、乘方、開方運算在普遍情況下的簡化計算法則，實現(xiàn)了數(shù)的運算在通常情況下即能順利通過心算速算來完成的目的。全書共分九章：第一章至第八章介紹了高位分段累加算術(shù)的思想方法，及其在實數(shù)加、減、乘、除、乘方、開方運算中的一般心算速算應(yīng)用；第九章介紹了特殊條件下的心算速算方法，并運用高位分段累加算術(shù)解讀了古印度吠陀數(shù)學乘法五式和除數(shù)是九的除法速算方法。第二版增加了直寫答案式簡化計算方法，更有利于大眾應(yīng)用。介紹方式由淺入深、通俗易懂。并詳細講解了方法的論證過程，有益于讀者理解和掌握應(yīng)用，利于普及。掌握了本算法不僅能迅速提高學生的心算能力和計算速度，更有利于提高學生的邏輯思維能力、激發(fā)學生的學習興趣。本方法若能廣泛應(yīng)用于中小學教學中，即能明顯提高學生的解題速度和學習效果；若能廣泛應(yīng)用于財會、商業(yè)、科研活動中，更能提高人們的工作效率和社會效益。本書可作為中小學校、財會、商貿(mào)及師范院校的教輔參考用書，也適用于青少年及從事財會、商業(yè)、科研等活動的成人自學。為了方便我國小學各年級讀者學習，在2018年美國版《高位分段累加算術(shù)》（HIGHORDERPIECEWISEARITHMETICS）的基礎(chǔ)上增設(shè)了減法運算中的退位速算法和“附錄三：速算基礎(chǔ)習題（小學一至六年級分階段基礎(chǔ)練習題）”供小學讀者速算訓練用。

·1.6萬字

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Hands-On Blockchain with Hyperledger

BBlockchainandHyperledgertechnologiesarehottopicstoday.HyperledgerFabricandHyperledgerComposerareopensourceprojectsthathelporganizationscreateprivate,permissionedblockchainnetworks.Thesefindapplicationinfinance,banking,supplychain,andIoTamongseveralothersectors.ThisbookwillbeaneasyreferencetoexploreandbuildblockchainnetworksusingHyperledgertechnologies.Thebookstartsbyoutliningtheevolutionofblockchain,includinganoverviewofrelevantblockchaintechnologies.YouwilllearnhowtoconfigureHyperledgerFabricandbecomefamiliarwithitsarchitecturalcomponents.Usingthesecomponents,youwilllearntobuildprivateblockchainnetworks,alongwiththeapplicationsthatconnecttothem.Startingfromprinciplesfirst,you’lllearntodesignandlaunchanetwork,implementsmartcontractsinchaincodeandmuchmore.Bytheendofthisbook,youwillbeabletobuildanddeployyourowndecentralizedapplications,handlingthekeypainpointsencounteredintheblockchainlifecycle.

·10.8萬字

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Blockchain for Enterprise

Theincreasinggrowthinblockchainuseisenormous,anditischangingthewaybusinessisdone.Manyleadingorganizationsarealreadyexploringthepotentialofblockchain.Withthisbook,youwilllearntobuildend-to-endenterprise-leveldecentralizedapplicationsandscalethemacrossyourorganizationtomeetyourcompany'sneeds.ThisbookwillhelpyouunderstandwhatDAppsareandhowtheblockchainecosystemworks,viareal-worldexamples.Thisextensiveend-to-endbookcoverseveryblockchainaspectforbusinessandfordevelopers.Youwillmasterprocessflowsandincorporatethemintoyourownenterprise.YouwilllearnhowtouseJ.P.Morgan’sQuorumtobuildblockchain-basedapplications.Youwillalsolearnhowtowriteapplicationsthatcanhelpcommunicateenterpriseblockchainsolutions.Youwilllearnhowtowritesmartcontractsthatrunwithoutcensorshipandthird-partyinterference.Onceyou'vegraspedwhatablockchainisandhavelearnedaboutQuorum,youwilljumpintobuildingreal-worldpracticalblockchainapplicationsforsectorssuchaspaymentandmoneytransfer,healthcare,cloudcomputing,supplychainmanagement,andmuchmore.

·4.9萬字

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Hyperledger Cookbook

Hyperledgerisanopen-sourceprojectandcreatesprivateblockchainapplicationsforarangeofdomains.Thisbookwillbeyourdeskreferenceasyouexplorecommonandnot-so-commonchallengesfacedwhilebuildingblockchainnetworksusingHyperledgerservices.We'llworkthroughallHyperledgerplatformmodulestounderstandtheirservicesandfeaturesandbuildend-to-endblockchainapplicationsusingvariousframeworksandtoolssupportedbyHyperledger.Thisbook'sindependent,recipe-basedapproach(packedwithreal-worldexamples)willfamiliarizeyouwiththeblockchaindevelopmentcycle.Frommodelingabusinessnetworktointegratingwithvarioustools,youwillcoveritall.We'llcovercommonandnot-so-commonchallengesfacedintheblockchainlifecycle.Later,we'lldelveintohowwecaninteractwiththeHyperledgerFabricblockchain,coveringalltheprinciplesyouneedtomaster,suchaschaincode,smartcontracts,andmuchmore.We'llalsoaddressthescalabilityandsecurityissuescurrentlyfacedinblockchaindevelopment.Bytheendofthisbook,youwillbeabletoimplementeachrecipetoplan,design,andcreateafull-fledged,private,decentralizedapplicationtomeetorganizationalneeds.

·4.9萬字

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Ethereum Smart Contract Development

IfyouwanttoknowtheinsandoutsoftheEthereumnetworkandbuildyourowndecentralizedapplications,thenthisbookiswhatyouneed!ThisbookisforanyonewhoisinterestedinblockchainandwantstobecomeanEthereumdeveloper.It’sidealforexistingEthereumdeveloperswhowanttodevelopEthereumusingsmartcontracts.Basicknowledgeofcryptographyisexpectedbutisnotmandatory.

·5.3萬字

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Hands-On Cryptography with Python

Hands-OnCryptographywithPythonisforsecurityprofessionalswhowanttolearntoencryptandevaluatedata,andcomparedifferentencryptionmethods.

·1.6萬字

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Hands-On Blockchain for Python Developers

Blockchainisseenasthemaintechnologicalsolutionthatworksasapublicledgerforallcryptocurrencytransactions.Thisbookservesasapracticalguidetodevelopingafull-fledgeddecentralizedapplicationwithPythontointeractwiththevariousbuildingblocksofblockchainapplications.Hands-OnBlockchainforPythonDevelopersstartsbydemonstratinghowblockchaintechnologyandcryptocurrencyhashingworks.Youwillunderstandthefundamentalsandbenefitsofsmartcontractssuchascensorshipresistanceandtransactionaccuracy.Asyousteadilyprogress,you'llgoontobuildsmartcontractsusingVyper,whichhasasimilarsyntaxtoPython.Thisexperiencewillfurtherhelpyouunraveltheotherbenefitsofsmartcontracts,includingreliablestorageandbackup,andefficiency.You'llalsouseweb3.pytointeractwithsmartcontractsandleveragethepowerofboththeweb3.pyandPopulusframeworktobuilddecentralizedapplicationsthatoffersecurityandseamlessintegrationwithcryptocurrencies.Asyouexplorelaterchapters,you'lllearnhowtocreateyourowntokenontopofEthereumandbuildacryptocurrencywalletgraphicaluserinterface(GUI)thatcanhandleEthereumandEthereumRequestforComments(ERC-20)tokensusingthePySide2library.Thiswillenableuserstoseamlesslystore,send,andreceivedigitalmoney.Towardtheend,you'llimplementInterPlanetaryFileSystem(IPFS)technologyinyourdecentralizedapplicationtoprovideapeer-to-peerfilesystemthatcanstoreandexposemedia.Bytheendofthisbook,you'llbewell-versedinblockchainprogrammingandbeabletobuildend-to-enddecentralizedapplicationsonarangeofdomainsusingPython.

·8.8萬字

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Blockchain Developer's Guide

Blockchainapplicationsprovideasingle-sharedledgertoeliminatetrustissuesinvolvingmultiplestakeholders.ItisthemaintechnicalinnovationofBitcoin,whereitservesasthepublicledgerforBitcointransactions.BlockchainDeveloper'sGuidetakesyouthroughtheelectrifyingworldofblockchaintechnology.Itbeginswiththebasicdesignofablockchainandelaboratesconcepts,suchasInitialCoinOfferings(ICOs),tokens,smartcontracts,andotherrelatedterminologies.YouwillthenexplorethecomponentsofEthereum,suchasEthertokens,transactions,andsmartcontractsthatyouneedtobuildsimpleDApps.BlockchainDeveloper'sGuidealsoexplainswhyyoumustspecificallyuseSolidityforEthereum-basedprojectsandletsyouexploredifferentblockchainswitheasy-to-followexamples.Youwilllearnawiderangeofconcepts-beginningwithcryptographyincryptocurrenciesandincludingethersecurity,mining,andsmartcontracts.YouwilllearnhowtousewebsocketsandvariousAPIservicesforEthereum.BytheendofthisLearningPath,youwillbeabletobuildefficientdecentralizedapplications.ThisLearningPathincludescontentfromthefollowingPacktproducts:BlockchainQuickReferencebyBrennHill,SamanyuChopra,PaulValencourt.BuildingBlockchainProjectsbyNarayanPrusty.

·12.5萬字

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Foundations of Blockchain

Blockchaintechnologyisacombinationofthreepopularconcepts:cryptography,peer-to-peernetworking,andgametheory.Thisbookisforanyonewhowantstodiveintoblockchainfromfirstprinciplesandlearnhowdecentralizedapplicationsandcryptocurrenciesreallywork.Thisbookbeginswithanoverviewofblockchaintechnology,includingkeydefinitions,itspurposesandcharacteristics,soyoucanassessthefullpotentialofblockchain.Allessentialaspectsofcryptographyarethenpresented,asthebackboneofblockchain.Forreaderswhowanttostudytheunderlyingalgorithmsofblockchain,you’llseePythonimplementationsthroughout.You’llthenlearnhowblockchainarchitecturecancreatedecentralizedapplications.You’llseehowblockchainachievesdecentralizationthroughpeer-to-peernetworking,andhowasimpleblockchaincanbebuiltinaP2Pnetwork.You’lllearnhowtheseelementscanimplementacryptocurrencysuchasBitcoin,andthewiderapplicationsofblockchainworkthroughsmartcontracts.Blockchainoptimizationtechniques,andblockchainsecuritystrategiesarethenpresented.Tocompletethisfoundation,weconsiderblockchainapplicationsinthefinancialandnon-financialsectors,andalsoanalyzethefutureofblockchain.Astudyofblockchainusecasesincludessupplychains,paymentsystems,crowdfunding,andDAOs,whichroundsoutyourfoundationinblockchaintechnology.

·9.2萬字

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Security Tokens and Stablecoins Quick Start Guide

Thefailureofinitialcoinofferings(ICOs)isnoaccident,asmostICOsdonotlinktoarealassetandarenotregulated.RealizingtheshortcomingsofICOs,theblockchaincommunityandpotentialinvestorsembracedsecuritytokenofferings(STOs)andstablecoinsenthusiastically.Inthisbook,westartwithanoverviewoftheblockchaintechnologyalongwithitsbasicconcepts.WeintroducetheconceptbehindSTO,andcoverthebasicrequirementsforlaunchingaSTOandtherelevantregulationsgoverningitsissuance.WediscussU.S.securitieslawsdevelopmentinlaunchingsecuritydigitaltokensusingblockchaintechnologyandshowsomerealusecases.WealsoexploretheprocessofSTOlaunchesandlegalconsiderations.WeintroducepopularsecuritytokensinthecurrentblockchainspaceandtalkabouthowtodevelopasecuritytokenDApp,includingsmartcontractdevelopmentforERC1404tokens.Later,you'lllearntobuildfrontendsidefunctionalitiestointeractwithsmartcontracts.Finally,wediscussstablecointechnicaldesignfunctionalitiesforissuingandoperatingSTOtokensbyinteractingwithEthereumsmartcontracts.Bytheendofthisbook,youwillhavelearnedmoreaboutSTOsandgainedadetailedknowledgeofbuildingrelevantapplications—allwiththehelpofpracticalexamples.

·5.6萬字

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Blockchain for Business 2019

BlockchainforBusiness2019isacomprehensiveguidethatenablesyoutobringinvariousblockchainfunctionalitiestoextendyourexistingbusinessmodelsandmakecorrectfully-informeddecisions.Youwilllearnhowdecentralizedapplicationsaretransformingnumerousbusinesssectorsthatareexpectedtoplayahugeroleinthefuture.Youwillseehowlargecorporationsarealreadyimplementingblockchaintechnologynow.Youwillthenlearnaboutthevariousblockchainservices,suchasBitcoin,Ethereum,Hyperledger,andotherstounderstandtheirusecasesinavarietyofbusinessdomains.Youwilldevelopasolidfundamentalunderstandingofblockchainarchitecture.Movingahead,youwillgettogripswiththeinnerworkingsofblockchain,withdetailedexplanationsofmining,decentralizedconsensus,cryptography,smartcontracts,andmanyotherimportantconcepts.Youwilldelveintoarealisticviewofthecurrentstateofblockchaintechnology,alongwithitsissues,limitations,andpotentialsolutionsthatcantakeittothenextlevel.Bytheendofthisbook,youwillallbewellversedinthelatestinnovationsanddevelopmentsintheemergingblockchainspace.

·6萬字

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錢敏數(shù)學文選

本書收錄了《馬爾可夫半群的不變測度與遍歷性》《非自治系統(tǒng)的不變?nèi)Γń饬餍危┓种А贰禡inimalCoupledDiffusionProcess》《GeneralizedWeylTransformation》等文章。

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Hands-On IoT Solutions with Blockchain