簡介：ASP外文翻譯原文XINXIASD1ASPASP外文翻譯外文翻譯原文原文ENGLISHEDEVELOPWEBAPPLICATIONPROGRAMUSINGASPTHEARCHITECTURETHATMUSTFIRSTESTABLISHWEBAPPLICATIONNOWINAPPLICATIONFREQUENTLYWITHTOHAVETWOTHEARCHITECTUREOFC/SANDTHEARCHITECTUREOFB/SCLIENT/SERVERANDCUSTOMEREND/SERVERHOLDTHEARCHITECTUREOFC/STHECUSTOMER/SERVERSTRUCTUREOFTWOFLOORCUSTOMER/SERVERCLIENT/SERVERMODELISAKINDOFGOODSOFTWAREARCHITECTURE,ITISTHEONEOFBESTAPPLICATIONPATTERNOFNETWORKFROMTECHNOLOGY,SEETHATITISALOGICCONCEPT,DENOTEWILLAAPPLICATIONMANYTASKSOFDECOMPOSINGDIFFERENCECARRYOUT,COMMONCOMPLETIONISENTIRETOAPPLYTHEFUNCTIONOFTASKONEACHNETWORKMAINCOMPUTEROFWEBSITE,RESOURCEHARDWARE,SOFTWAREANDDATADIVIDEINTOSTEP,ISNOTBALANCED,UNDERCUSTOMER/SERVERSTRUCTURE,WITHOUTTHECLIENTCOMPUTEROFRESOURCETHROUGHSENDINGREQUESTTOTHESERVERTHATHASRESOURCE,GETRESOURCEREQUEST,SOMEETTHERESOURCEDISTRIBUTIONINNETWORKNOTBALANCEDNESSWITHTHISKINDOFSTRUCTURE,CANSYNTHESIZEVARIOUSCOMPUTERSTOCOOPERATEWITHWORK,LETITEACHCAN,REALIZETHESCALEFORTHESYSTEMOFCOMPUTEROPTIMIZATIONRIGHTSIZINGWITHSCALEREDUCETOMELTDOWNSIZINGPICTUREISASFOLLOWSITISMOSTOFTODIVIDEINTOCOMPUTERNETWORKAPPLICATIONINTOTWO,INWHICHTHERESOURCEANDFUNCTIONTHATPARTSUPPORTSMANYUSERSTOSHARE,ITISREALIZEDBYSERVERANOTHERPARTFACESEVERYUSER,ISREALIZEDBYCLIENTCOMPUTER,ALSONAMELY,CLIENTCOMPUTERISUSUALTOCARRYOUTPROSCENIUMFUNCTION,REALIZESMANMACHINEINTERACTIONTHROUGHUSERINTERFACE,ORISTHEAPPLICATIONPROGRAMOFSPECIFICCONDUCTEDUSERANDSERVERUSUALLYCARRIESOUTTHEFUNCTIONOFBACKSTAGESUPPORTER,MANAGESTHEOUTSIDEREQUESTCONCERNINGSETINGUP,ACCEPTINGANDREPLYINGUSERTHATSHAREDFORACOMPUTER,ITCANHAVEDOUBLEFUNCTION,ISBEINGCERTAINANDMOMENTARYTOCARVETOACTASSERVER,ANDAGAINBECOMESCLIENTCOMPUTERINANOTHERTIMECUSTOMER/SERVERTYPECOMPUTERDIVIDEINTOTWOKINDS,ONESIDEWHOOFFERSSERVICEISCALLEDASSERVER,ASKSONESIDEOFSERVICETOBECALLEDASCUSTOMERTOBEABLETOOFFERSERVICE,SERVERONESIDEMUSTHAVECERTAINHARDWAREANDCORRESPONDINGSERVERSOFTWAREALSO,CUSTOMERONESIDEMUSTALSOHAVECERTAINHARDWAREANDCORRESPONDINGCUSTOMERSOFTWARETHEREMUSTBEAAGREEMENTBETWEENSERVERANDCUSTOMER,BOTHSIDESCOMMUNICATEACCORDINGTOTHISAGREEMENTAPPLYCUSTOMER/SERVERMODELININTERNETSERVICE,THERELATIONBETWEENASP外文翻譯原文XINXIASD3UNDERTHETHREELAYERARCHITECTUREOFBROWSER/SERVER,EXPRESSLAYERPRESENTATIOON,FUNCTIONLAYERBUSINESSLOGIC,DATALAYERDATASERVICEHAVEBEENCUTTHEUNITOF3RELATIVEINDEPENDENCESITISTHEFIRSTLAYEROFTOEXPRESSLAYERWEBBROWSERINEXPRESSINGLAYERCONTAINSYSTEMSHOWLOGIC,LOCATEINCUSTOMERENDITSTASKISTOSUGGESTBYWEBBROWSERTOTHECERTAINAWEBSERVERONNETWORKTHATSERVICEISASKED,AFTERVERIFYINGFORUSERIDENTITY,WEBSERVERDELIVERSNEEDEDHOMEPAGEWITHHTTPAGREEMENTTOCUSTOMEREND,CLIENTCOMPUTERACCEPTTHEHOMEPAGEFILETHATPASSED,ANDSHOWITINWEBBROWSERONSECONDLAYERFUNCTIONLAYERHAVETHEWEBSERVEROFTHEAPPLICATIONFUNCTIONOFPROGRAMEXTENSIONINFUNCTIONLAYERCONTAINTHESYSTEMATICHANDLINGOFGENERALAFFAIRSLOGIC,LOCATEINWEBSERVERENDITSTASKISTHEREQUESTCONCERNINGACCEPTINGUSER,NEEDTOBEFIRSTCONDUCTEDANDCORRESPONDINGTOEXPANDAPPLICATIONPROGRAMANDDATABASETOCARRYOUTCONNECTION,PASSESTHROUGHTHEWAIESSUCHASSQLTODATABASESERVERTOPUTFORWARDDATAHANDLINGTOAPPLYFOR,THENETCDATABASESERVERTHERESULTOFHANDLINGDATASUBMITTOWEBSERVER,DELIVERAGAINBYWEBSERVERTORETURNCUSTOMERENDTHENUMBEROFPLIESOF3THACCORDINGTOLAYERDATABASESERVERINDATALAYERCONTAINSYSTEMATICDATAHANDLINGLOGIC,LOCATEINDATABASESERVERENDITSTASKISTOACCEPTTHEREQUESTTHATWEBSERVERCONTROLSFORDATABASE,REALIZATIONISINQUIREDANDMODIFIEDFORDATABASE,UPDATEETCFUNCTION,SUBMITOPERATIONRESULTTOWEBSERVERCAREFULANALYSISISBEENEASYTOSEE,THEARCHITECTUREOFBROWSER/SERVEROFTHREELAYERISTHEHANDLINGOFGENERALAFFAIRSOFTHETWOLEVELSOFSTRUCTUREOFCLIENT/SERVERLOGICMODULARFROMTHETASKOFCLIENTCOMPUTERINSPLIT,FROMTHEFIRSTFLOOROFINDIVIDUALCOMPOSITIONBEARTHEPRESSUREOFITSTASKANDSUCHCLIENTCOMPUTERHAVEALLEVIATEDGREATLY,DISTRIBUTELOADBALANCEDLYANDHAVEGIVENWEBSERVER,SOFROMTHESTRUCTURALCHANGEOFCLIENT/SERVEROFORIGINALTWOFLOORTHESTRUCTUREOFBROWSER/SERVEROFTHREELAYERTHISKINDOFTHREELAYERARCHITECTUREFOLLOWINGPICTURESHOWSTHISKINDOFSTRUCTURENOTONLYCLIENTCOMPUTERFROMHEAVYBURDENANDTHEREQUIREMENTOFPERFORMANCETHATRISESCONTINUOUSLYFORITINLIBERATIONCOMEOUT,ALSODEFENDTECHNOLOGYPEOPLEFROMHEAVYMAINTENANCEUPGRADINGWORKINFREEONESELFSINCECLIENTCOMPUTERHANDLESGENERALAFFAIRS,LOGICPARTIALMINUTESHAVEGIVENFUNCTIONSERVER,MAKECLIENTCOMPUTERRIGHTOFF“SLENDER“ALOTOF,DONOTTAKETHERESPONSIBILITYFORHANDLINGCOMPLEXCALCULATIONANDDATAAGAINVISITETCCRUCIALGENERALAFFAIRS,ISRESPONSIBLETOSHOWPART,SO,MAINTENANCEPEOPLEDONOTRUSHABOUTAGAINFORTHEMAINTENANCEWORKOFPROGRAMBETWEENEVERYCLIENTCOMPUTER,ANDPUTMAJORENERGYINTHEPROGRAMONFUNCTIONSERVERUPDATEWORKBETWEENTHISKINDOFTHREELAYERSTRUCTURALLAYERANDLAYER,THEMUTUALLYINDEPENDENTCHANGEOFANYFIRSTFLOORDOESNOTAFFECTTHEFUNCTIONOFOTHERLAYERITHASCHANGEDTHEDEFECTOFTHETWOLEVELSOFARCHITECTUREOFCLIENT/SERVEROFTRADITIONFROMFOUNDATION,ITISTHETRANSFORMWITHDEEPONCEINAPPLICATIONSYSTEMATICARCHITECTURETHECONTRASTOFTWOARCHITECTURESTHEARCHITECTUREOFBROWSER/SERVERANDTHEARCHITECTUREOFCLIENT/SERVER

簡介：VIRTUALREALITYMODELOFAIRPOLLUTIONMMUDROVA,APROCHAZKA,ANDMKOLNOVAINSTITUTEOFCHEMICALTECHNOLOGY,DEPARTMENTOFCOMPUTINGANDCONTROLENGINEERINGABSTRACTTHEPAPERISDEVOTEDTOTHEDESCRIPTIONOFVIRTUALREALITYMODELGENERATIONUSINGTHESYSTEMMATLABANDITSVIRTUALREALITYTOOLBOXTHESELECTEDPOSSIBILITIESOFINTERCONNECTIONOFBOTHSYSTEMSMATLABANDVRMLAREDEMONSTRATEDBYMEANSOFVISUALISATIONOFTWODIMENSIONALINTERPOLATIONOFAIRPOLLUTIONDATA1INTRODUCTIONPRESENTATIONOFTHREEDIMENSIONALDATACURRENTLYREPRESENTSAVERYTOPICALTHEMEINMANYAREAS,ANDNOTONLYTECHNICALONESCLEARANDINTELLIGIBLEARRANGEMENTSOFINFORMATIONINTHE3DMODELISNECESSARYFOREXAMPLEINMEDICINEANDITISUSEDMOREANDMOREFREQUENTLYINOTHERAREASRESULTSOFINFORMATIONPROCESSINGUSINGCOMPLEXMATHEMATICALTOOLSCANNATURALLYLEADTOFORMULATIONOFATHREEDIMENSIONALGRAPHICALMODELITHASBEENPOSSIBLETOOBSERVEORPROCESSSPATIALDATAFORALLUSERSOFPERSONALCOMPUTERSSINCETHEVRMLVIRTUALREALITYMODELINGLANGUAGEHADBEENDEVELOPED5,6,7THEMOSTFREQUENTLYUSEDINTERNETBROWSERSMSINTERNETEXPLORERANDNETSCAPENAVIGATORHAVEAVRMLVIEWERBUILTINTHEREAREALSOMANYOTHERFREEWAREPLUGINMODULESAVAILABLEONTHEINTERNETWITHWHICHONECANENTERTHEVIRTUALWORLDANDOBSERVEITANDPOSSIBLYCONTROLITASWELLTHANKSTOTHESEFACTS,ITISEXPECTEDTHATAREASOFAPPLICATIONSOF3DMODELINGWILLGROWTHEGOALOFTHISPAPERISTODESCRIBETHEPROCESSOFFORMULATIONOFA3DMODELOFAIRPOLLUTIONLEVELINTHECZECHREPUBLICUSINGTHESYSTEMMATLAB,ANDITSEXPORTTOVRML2BACKGROUNDTHEVIRTUALREALISTICSCENEESTABLISHESTOGENERALLYHAVETWOKINDSOFPATHSADOPTINGOPENGL,VRML，DIRECT3DISTHE1ST。FORNONCALCULATORPROFESSIONALPERSONNELTOSAY,MAKEUSEOFOPENGLTOWRITEACOMPLICATED3DAPPLICATIONDOUBTLESSISACHALLENGEVRMLLANGUAGEONESELFWRITINGISVERYEASY,BUTTHISKINDOFFIG1WEREPREPROCESSEDBYMEANSOFCOMPENSATIONFORVALUESOFMEASUREMENTFAILURESANDELIMINATIONOFDISTANTVALUES4FIGURE1THEAIMSTATIONLAYOUTINTHECZECHREPUBLICWITHMARKEDDELAUNAYTRIANGULATION4TWODIMENSIONALINTERPOLATIONMETHODSITISPOSSIBLETOUSEVARIOUSINTERPOLATIONMETHODSFORESTIMATIONOFVALUESOFANOBSERVEDPOLLUTANTINOTHERNONMEASUREDPOINTSSPECIEDBYASELECTEDORTHOGONALNETTHEDESCRIPTIONANDCOMPARISONOFTHESEPROBLEMSHASBEENPRESENTEDIN4ITISPOSSIBLETOUSETHESIMPLESTMETHODOFTHE0THORDERTHENEARESTNEIGHBOURMETHODTHATINTERPOLATESTHESURROUNDINGSOFAGIVENSTATIONBYTHESAMEVALUEMEASUREDINTHESTATIONVORONOIDIAGRAMS1LIMITTHESURROUNDINGBORDERSRELATEDDELAUNAYTRIANGULATIONMETHODPRESENTEDINFIG1ISUSEDFORHIGHERORDERINTERPOLATIONBILINEAR,CUBIC,SPLINEASELECTEDMETHODAPPLIEDTOTHEARRAYOFCALCULATEDCONCENTRATIONSVALUESRESULTSINTHEORTHOGONALNETDE_NINGLONGITUDEANDLATITUDETHETHREEDIMENSIONALMODELREPRESENTSANATURALPRESENTATIONOFTHESERESULTS5THREEDIMENSIONALMODELINMATLABANDVRMLENVIRONMENTTHESPLINEINTERPOLATIONMETHODHASBEENAPPLIEDFORTHEDATAPM10PARTICULARMATERIALUPTO10_MMEASUREDINTHEAIMSYSTEMOFTHECZECHREPUBLICATASELECTEDTIMETHEALGORITHMREALIZEDINTHEMATLABR12SYSTEMPROVIDESRESULTINGMODELOFAIRPOLLUTIONPRESENTEDINFIG2

簡介：1外文翻譯外文翻譯ENGLISHEDEVELOPWEBAPPLICATIONPROGRAMUSINGASPTHEARCHITECTURETHATMUSTFIRSTESTABLISHWEBAPPLICATIONNOWINAPPLICATIONFREQUENTLYWITHTOHAVETWOTHEARCHITECTUREOFC/SANDTHEARCHITECTUREOFB/SCLIENT/SERVERANDCUSTOMEREND/SERVERHOLDTHEARCHITECTUREOFC/STHECUSTOMER/SERVERSTRUCTUREOFTWOFLOORCUSTOMER/SERVERCLIENT/SERVERMODELISAKINDOFGOODSOFTWAREARCHITECTURE,ITISTHEONEOFBESTAPPLICATIONPATTERNOFNETWORKFROMTECHNOLOGY,SEETHATITISALOGICCONCEPT,DENOTEWILLAAPPLICATIONMANYTASKSOFDECOMPOSINGDIFFERENCECARRYOUT,COMMONCOMPLETIONISENTIRETOAPPLYTHEFUNCTIONOFTASKONEACHNETWORKMAINCOMPUTEROFWEBSITE,RESOURCEHARDWARE,SOFTWAREANDDATADIVIDEINTOSTEP,ISNOTBALANCED,UNDERCUSTOMER/SERVERSTRUCTURE,WITHOUTTHECLIENTCOMPUTEROFRESOURCETHROUGHSENDINGREQUESTTOTHESERVERTHATHASRESOURCE,GETRESOURCEREQUEST,SOMEETTHERESOURCEDISTRIBUTIONINNETWORKNOTBALANCEDNESSWITHTHISKINDOFSTRUCTURE,CANSYNTHESIZEVARIOUSCOMPUTERSTOCOOPERATEWITHWORK,LETITEACHCAN,REALIZETHESCALEFORTHESYSTEMOFCOMPUTEROPTIMIZATIONRIGHTSIZINGWITHSCALEREDUCETOMELTDOWNSIZINGPICTUREISASFOLLOWSITISMOSTOFTODIVIDEINTOCOMPUTERNETWORKAPPLICATIONINTOTWO,INWHICHTHERESOURCEANDFUNCTIONTHATPARTSUPPORTSMANYUSERSTOSHARE,ITISREALIZEDBYSERVERANOTHERPARTFACESEVERYUSER,ISREALIZEDBYCLIENTCOMPUTER,ALSONAMELY,CLIENTCOMPUTERISUSUALTOCARRYOUTPROSCENIUMFUNCTION,REALIZESMANMACHINEINTERACTIONTHROUGHUSERINTERFACE,ORISTHEAPPLICATIONPROGRAMOFSPECIFICCONDUCTEDUSERANDSERVERUSUALLYCARRIESOUTTHEFUNCTIONOFBACKSTAGESUPPORTER,MANAGESTHEOUTSIDEREQUESTCONCERNINGSETINGUP,ACCEPTINGANDREPLYINGUSERTHATSHAREDFORACOMPUTER,ITCANHAVEDOUBLEFUNCTION,ISBEINGCERTAINANDMOMENTARYTOCARVETOACTASSERVER,ANDAGAINBECOMESCLIENTCOMPUTERINANOTHERTIMECUSTOMER/SERVERTYPECOMPUTERDIVIDEINTOTWOKINDS,ONESIDEWHOOFFERSSERVICEISCALLEDASSERVER,ASKSONESIDEOFSERVICETOBECALLEDASCUSTOMERTOBEABLETOOFFERSERVICE,SERVERONESIDEMUSTHAVECERTAINHARDWAREANDCORRESPONDINGSERVERSOFTWAREALSO,CUSTOMERONESIDEMUSTALSOHAVECERTAINHARDWAREANDCORRESPONDINGCUSTOMERSOFTWARETHEREMUSTBEAAGREEMENTBETWEENSERVERANDCUSTOMER,BOTHSIDESCOMMUNICATEACCORDINGTOTHISAGREEMENTAPPLYCUSTOMER/SERVERMODELININTERNETSERVICE,THERELATIONBETWEEN3UNDERTHETHREELAYERARCHITECTUREOFBROWSER/SERVER,EXPRESSLAYERPRESENTATIOON,FUNCTIONLAYERBUSINESSLOGIC,DATALAYERDATASERVICEHAVEBEENCUTTHEUNITOF3RELATIVEINDEPENDENCESITISTHEFIRSTLAYEROFTOEXPRESSLAYERWEBBROWSERINEXPRESSINGLAYERCONTAINSYSTEMSHOWLOGIC,LOCATEINCUSTOMERENDITSTASKISTOSUGGESTBYWEBBROWSERTOTHECERTAINAWEBSERVERONNETWORKTHATSERVICEISASKED,AFTERVERIFYINGFORUSERIDENTITY,WEBSERVERDELIVERSNEEDEDHOMEPAGEWITHHTTPAGREEMENTTOCUSTOMEREND,CLIENTCOMPUTERACCEPTTHEHOMEPAGEFILETHATPASSED,ANDSHOWITINWEBBROWSERONSECONDLAYERFUNCTIONLAYERHAVETHEWEBSERVEROFTHEAPPLICATIONFUNCTIONOFPROGRAMEXTENSIONINFUNCTIONLAYERCONTAINTHESYSTEMATICHANDLINGOFGENERALAFFAIRSLOGIC,LOCATEINWEBSERVERENDITSTASKISTHEREQUESTCONCERNINGACCEPTINGUSER,NEEDTOBEFIRSTCONDUCTEDANDCORRESPONDINGTOEXPANDAPPLICATIONPROGRAMANDDATABASETOCARRYOUTCONNECTION,PASSESTHROUGHTHEWAIESSUCHASSQLTODATABASESERVERTOPUTFORWARDDATAHANDLINGTOAPPLYFOR,THENETCDATABASESERVERTHERESULTOFHANDLINGDATASUBMITTOWEBSERVER,DELIVERAGAINBYWEBSERVERTORETURNCUSTOMERENDTHENUMBEROFPLIESOF3THACCORDINGTOLAYERDATABASESERVERINDATALAYERCONTAINSYSTEMATICDATAHANDLINGLOGIC,LOCATEINDATABASESERVERENDITSTASKISTOACCEPTTHEREQUESTTHATWEBSERVERCONTROLSFORDATABASE,REALIZATIONISINQUIREDANDMODIFIEDFORDATABASE,UPDATEETCFUNCTION,SUBMITOPERATIONRESULTTOWEBSERVERCAREFULANALYSISISBEENEASYTOSEE,THEARCHITECTUREOFBROWSER/SERVEROFTHREELAYERISTHEHANDLINGOFGENERALAFFAIRSOFTHETWOLEVELSOFSTRUCTUREOFCLIENT/SERVERLOGICMODULARFROMTHETASKOFCLIENTCOMPUTERINSPLIT,FROMTHEFIRSTFLOOROFINDIVIDUALCOMPOSITIONBEARTHEPRESSUREOFITSTASKANDSUCHCLIENTCOMPUTERHAVEALLEVIATEDGREATLY,DISTRIBUTELOADBALANCEDLYANDHAVEGIVENWEBSERVER,SOFROMTHESTRUCTURALCHANGEOFCLIENT/SERVEROFORIGINALTWOFLOORTHESTRUCTUREOFBROWSER/SERVEROFTHREELAYERTHISKINDOFTHREELAYERARCHITECTUREFOLLOWINGPICTURESHOWSTHISKINDOFSTRUCTURENOTONLYCLIENTCOMPUTERFROMHEAVYBURDENANDTHEREQUIREMENTOFPERFORMANCETHATRISESCONTINUOUSLYFORITINLIBERATIONCOMEOUT,ALSODEFENDTECHNOLOGYPEOPLEFROMHEAVYMAINTENANCEUPGRADINGWORKINFREEONESELFSINCECLIENTCOMPUTERHANDLESGENERALAFFAIRS,LOGICPARTIALMINUTESHAVEGIVENFUNCTIONSERVER,MAKECLIENTCOMPUTERRIGHTOFF“SLENDER“ALOTOF,DONOTTAKETHERESPONSIBILITYFORHANDLINGCOMPLEXCALCULATIONANDDATAAGAINVISITETCCRUCIALGENERALAFFAIRS,ISRESPONSIBLETOSHOWPART,SO,MAINTENANCEPEOPLEDONOTRUSHABOUTAGAINFORTHEMAINTENANCEWORKOFPROGRAMBETWEENEVERYCLIENTCOMPUTER,ANDPUTMAJORENERGYINTHEPROGRAMONFUNCTIONSERVERUPDATEWORKBETWEENTHISKINDOFTHREELAYERSTRUCTURALLAYERANDLAYER,THEMUTUALLYINDEPENDENTCHANGEOFANYFIRSTFLOORDOESNOTAFFECTTHEFUNCTIONOFOTHERLAYERITHASCHANGEDTHEDEFECTOFTHETWOLEVELSOFARCHITECTUREOFCLIENT/SERVEROFTRADITIONFROMFOUNDATION,ITISTHETRANSFORMWITHDEEPONCEINAPPLICATIONSYSTEMATICARCHITECTURETHECONTRASTOFTWOARCHITECTURESTHEARCHITECTUREOFBROWSER/SERVERANDTHEARCHITECTUREOFCLIENT/SERVER

簡介：畢業(yè)設(shè)計正文第1頁哈爾濱職業(yè)技術(shù)學(xué)院印制摘要21世紀(jì)計算機(jī)網(wǎng)絡(luò)已經(jīng)是人類生活當(dāng)中不可缺少的一部分；互聯(lián)網(wǎng)涉及到的很多方面；已經(jīng)被越來越廣泛地應(yīng)用于政治、經(jīng)濟(jì)、軍事、生產(chǎn)及科學(xué)技術(shù)的各個領(lǐng)域。目前我國企業(yè)尤其是中小型企業(yè)網(wǎng)絡(luò)建設(shè)正在如火如荼的進(jìn)行著，此方案采用了國際高端品牌CISCO的網(wǎng)絡(luò)設(shè)備，同時采用了當(dāng)前重要的和使用廣泛的網(wǎng)絡(luò)體結(jié)構(gòu)有OSI體系結(jié)構(gòu)和TCP/IP體系結(jié)構(gòu)。以先進(jìn)，安全，實(shí)用，可擴(kuò)展，靈活為原則進(jìn)行設(shè)計，并規(guī)劃出了交換機(jī)/路由器各種應(yīng)用服務(wù)器構(gòu)架成的設(shè)計方案。本方案將以中小型企業(yè)內(nèi)部局域網(wǎng)的組建需求、實(shí)際應(yīng)用為出發(fā)點(diǎn)，從中小型企業(yè)局域網(wǎng)的業(yè)務(wù)需求和傳統(tǒng)網(wǎng)絡(luò)技術(shù)入手，設(shè)計適用于中小型企業(yè)的組網(wǎng)方案，為客戶營造一個一流的企業(yè)網(wǎng)絡(luò)。關(guān)鍵詞中小型企業(yè)；網(wǎng)絡(luò)；路由交換技術(shù)；局域網(wǎng)畢業(yè)設(shè)計正文第3頁哈爾濱職業(yè)技術(shù)學(xué)院印制一、緒論在信息化快速推進(jìn)的今天，中小企業(yè)網(wǎng)絡(luò)作為網(wǎng)絡(luò)化建設(shè)的一支主體力量，其市場前景得到越來越多的關(guān)注。企業(yè)網(wǎng)絡(luò)技術(shù)的發(fā)展以及企業(yè)生存和發(fā)展需要促成了企業(yè)網(wǎng)的形成。信息技術(shù)所帶來的一場革命將徹底改變我們的學(xué)習(xí)、生活和工作方式。全球信息化浪潮勢不可擋，已經(jīng)迅速延伸至國防、科研、經(jīng)濟(jì)、教育等各個領(lǐng)域，也不可避免地改變著傳統(tǒng)的企業(yè)人事的工作模式，利用當(dāng)前蓬勃發(fā)展的以計算機(jī)和網(wǎng)絡(luò)為主導(dǎo)的現(xiàn)代信息技術(shù)則是企業(yè)實(shí)現(xiàn)現(xiàn)代化工作的必不可少的技術(shù)基礎(chǔ)。在現(xiàn)今的網(wǎng)絡(luò)建設(shè)中，企業(yè)網(wǎng)的建設(shè)是非常重要的，企業(yè)網(wǎng)內(nèi)部各種不同業(yè)務(wù)的開展是企業(yè)網(wǎng)發(fā)展迅速的最主要原因。從早期的企業(yè)網(wǎng)主要是簡單的數(shù)據(jù)共享，簡單數(shù)據(jù)庫的共享到現(xiàn)在內(nèi)部全方位的數(shù)據(jù)共享，從過去單一的企業(yè)到現(xiàn)在多個分支公司的全部互連，因而對網(wǎng)絡(luò)的覆蓋面要求越來越廣。這一要求最早還只局限于各分支企業(yè)內(nèi)部，現(xiàn)在則已是整個企業(yè)、整個行業(yè)，甚至整個INTERNET的共同要求為了適應(yīng)網(wǎng)絡(luò)經(jīng)濟(jì)的飛速發(fā)展，擴(kuò)大企業(yè)經(jīng)營的規(guī)模和范圍，方便企業(yè)內(nèi)部和企業(yè)之間的交流，節(jié)省辦公開銷，提高企業(yè)的管理水平，企業(yè)發(fā)展INTRANET（企業(yè)內(nèi)部網(wǎng)）已經(jīng)是刻不容緩?，F(xiàn)如今后如何應(yīng)對瞬息萬變、競爭激烈的國內(nèi)外市場環(huán)境以及如何利用網(wǎng)絡(luò)技術(shù)迅速提升企業(yè)核心競爭力就是成為企業(yè)成敗的關(guān)鍵所在。

簡介：外文原文THEENTERPRISEJAVABEANSINAJ2EEAPPLICATIONENTERPRISEJAVABEANSEJBTIERHOSTSAPPLICATIONSPECIFICBUSINESSLOGICANDPROVIDESSYSTEMLEVELSERVICESSUCHASTRANSACTIONMANAGEMENT,CONCURRENCYCONTROL,ANDSECURITYENTERPRISEJAVABEANSTECHNOLOGYPROVIDESADISTRIBUTEDCOMPONENTMODELTHATENABLESDEVELOPERSTOFOCUSONSOLVINGBUSINESSPROBLEMSWHILERELYINGONTHEJ2EEPLATFORMTOHANDLECOMPLEXSYSTEMLEVELISSUESTHISSEPARATIONOFCONCERNSALLOWSRAPIDDEVELOPMENTOFSCALABLEACCESSIBLE,ROBUST,ANDHIGHLYSECUREAPPLICATIONSINTHEJ2EEPROGRAMMINGMODELEJBCOMPONENTSAREAFUNDAMENTALLINKBETWEENPRESENTATIONCOMPONENTSHOSTEDBYTHEWEBTIERANDBUSINESSCRITICALDATAANDSYSTEMSMAINTAINEDINTHEENTERPRISEINFORMATIONSYSTEMTIERTHISCHAPTERDESCRIBESTHECONCEPTSCENTRALTOTHEENTERPRISEJAVABEANSARCHITECTUREANDPROVIDESGUIDELINESANDRECOMMENDATIONSTOBESTUSEEJBCOMPONENTSTHECHAPTER．EXAMINESTHENATUREOFBUSINESSLOGICANDDESCRIBESTHEPROBLEMSADEVELOPERNEEDSTORESOLVEWHENIMPLEMENTINGBUSINESSLOGIC．DESCRIBESTHECOMPONENTMODELTHATENTERPRISEJAVABEANSARCHITECTUREPROVIDESTOADDRESSTHESEPROBLEMSDESCRIBESREMOTEANDLOCALCLIENTVIEWSPROVIDESDETAILSONTHETHREETYPESOFENTERPRISEBEANSENTITYBEANS,SESSIONBEANS,ANDMESSAGEDRIVENBEANSRECOMMENDSDESIGNGUIDELINESFORDEVELOPINGEJBCOMPONENTSANDAPPLICATIONSPRESENTSRECOMMENDATIONSANDPRACTICESTOBESTUTILIZETHEEJBTIERSERVICESPROVIDEDBYTHEJ2EEPLATFORMPROVIDESGUIDELINESTOFACILITATEAPPLICATIONPORTABILITY51BUSINESSLOGICANDBUSINESSOBJECTSBUSINESSLOGIC,INAVERYBROADSENSE,ISTHESETOFPROCEDURESORMETHODSUSEDTOMANAGEASPECIFICBUSINESSFUNCTIONTAKINGTHEOBJECTORIENTEDAPPROACHENABLESTHEDEVELOPERTODECOMPOSEABUSINESSFUNCTIONINTOASETOFCOMPONENTSORELEMENTCALLEDBUSINESSOBJECTSLIKEOTHEROBJECTS,BUSINESSOBJECTSHAVEBOTHSTATEORDATAANDBEHAVIORFOREXAMPLE,ANEMPLOYEEOBJECTHASDATASUCHASANAMEADDRESS,SOCIALSECURITYNUMBER,ANDSOONITHASMETHODSFORASSIGNINGITTOANEWDEPARTMENTORFORCHANGINGITSSALARYBYACERTAINPERCENTAGETOMANAGEABUSINESSPROBLEMYOUANDUPDATEDACCOUNTINFORMATIONSHOULDBEWRITTENTOPERSISTENTSTORAGENOOTHERCLIENTSHOULDBEABLETOACCESSTHEPARTICULARACCOUNTCONCURRENTLYSIMILARANALYSISANDREQUIREMENTDEFINITIONSCOULDBEPERFORMEDFOROTHEROBJECTSFOREXAMPLE,ANORDEROBJECTHASASETOFGENERALCONDITIONSONITSBEHAVEFORTHATHAVEASIGNIFICANTCORRELATIONTOTHEBEHAVIOROFANACCOUNTOBJECTTHATISCLIENTNEEDSTOBEAUTHORIZEDBEFOREUPDATINGORREADINGTHESTATUSOFANORDER,DETAILSNEEDTOBEWRITTENTOAPERSISTENTSTORAGE,ANDSOONIFYOUEXAMINEBUSINESSOBJECTSINSIMILARAPPLICATIONSYOUWILLSEETHATEVENTHOUGHTHEACTUALSTRUCTUREANDBEHAVIOROFTHEOBJECTISTIEDCLOSELYTOTHEBUSINESSPROBLEMITISGOINGTOSOLVE,MANYSERVICESTHATTHESEBUSINESSOBJECTSPROVIDEFOLLOWSPECIFICPATTERNSTHATAREQUITEGENERICINNATURE．51．1COMMONREQUIREMENTSOFBUSINESS06JECTSTHISSECTIONDESCRIBESCOMMONREQUIREMENTSOFBUSINESSOBJECTS511．1MAINTAINSTATEABUSINESSOBJECTOFTENNEEDSTOMAINTAINSTATEBETWEENMETHODINVOCATIONSTHISSTATECANBEEITHERCONVERSATIONALORPERSISTENTCONVERSATIONALSTATEISSTATEMAINTAMEDINANOBJECTDURINGTHECONVERSATIONBETWEENACLIENTANDTHEAPPLICATIONPERSISTENTSTATEISSTATETHATISSTOREDINADATABASEOROTHERPERSISTENTSTORE,OUTLIVINGTHECONVERSATIONBETWEENACLIENTANDTHEAPPLICATIONCONSIDERASHOPPINGCARTOBJECTTHESTATEOFTHESHOPPINGCARTOBJECTREPRESENTSTHEITEMSANDQUANTITIESOFTHEITEMSPURCHASEDBYTHECLIENTTHECARTISINITIALLYEMPTYANDGAINSMEANINGFULSTATEWHENAUSERADDSANITEMTOTHECARTWHENAUSERADDSASECONDITEMTOTHECART,THECARTSHOULDHAVEBOTHITEMSINITSIMILARLY,WHENAUSERDELETESANITEMFROMTHECART,THECARTSHOULDREFLECTTHECHANGEINITSSTATEWHENAUSEREXITSTHEAPPLICATION,THECARTOBJECTISRECLAIMEDANDTHECONVERSATIONALSTATENOLONGEREXISTS．WHENTHEOBJECTGAINS,MAINTAINS,ANDLOSESITSSTATEASARESULTOFREPEATEDINTERACTIONSWITHTHESAMECLIENT,WESAYTHEOBJECTMAINTAINSCONVERSATIONALSTATETOUNDERSTANDPERSISTENTSTATE,CONSIDERANACCOUNTOBJECTWHENAUSERCREATESANACCOUNT,THEACCOUNTINFORMATIONNEEDSTOBESTOREDPERMANENTLYSOTHATWHENTHEUSEREXITSTHEAPPLICATIONANDREENTERSTHEAPPLICATION,THEACCOUNTINFORMATIONCANBEPRESENTEDTOTHEUSERAGAINTHESTATEOFANACCOUNTOBJECTNEEDSTOBEMAINTAINEDINPERSISTENTSTORAGE,SUCHASADATABASETHATWILLSURVIVESYSTEMCRASHES5112OPERATEONSHAREDDATA

簡介：實(shí)習(xí)報告實(shí)習(xí)報告實(shí)習(xí)名稱實(shí)習(xí)名稱學(xué)院姓名班級學(xué)號實(shí)習(xí)時間實(shí)習(xí)時間實(shí)習(xí)地點(diǎn)實(shí)習(xí)地點(diǎn)一、實(shí)習(xí)目的通過理論聯(lián)系實(shí)際，鞏固所學(xué)的知識，提高處理實(shí)際問題的能力，為順利畢業(yè)進(jìn)行做好充分的準(zhǔn)備，并為自己能順利與社會環(huán)境接軌做準(zhǔn)備。通過這次實(shí)習(xí)，使我們進(jìn)一步理解和領(lǐng)會所學(xué)的基本理論，了解計算機(jī)技術(shù)的發(fā)展及應(yīng)用，較為系統(tǒng)地掌握計算機(jī)應(yīng)用技能，把所學(xué)知識與解決實(shí)際問題相聯(lián)系，能夠利用計算機(jī)處理工作中的各種信息，培養(yǎng)我們發(fā)現(xiàn)問題、分析問題和解決問題的能力，從而提高我們從事實(shí)際工作的能力。通過理論聯(lián)系實(shí)際，鞏固所學(xué)的知識，提高處理實(shí)際問題的能力，了解設(shè)計專題的主要內(nèi)容，使學(xué)生能夠了解社會、學(xué)校的需要，在實(shí)習(xí)單位領(lǐng)導(dǎo)的幫助，對自己今后所從事的事業(yè)有一個實(shí)習(xí)了解的過程。為畢業(yè)設(shè)計的順利進(jìn)行做好充分的準(zhǔn)備，并為自己能順利與社會環(huán)境接軌做準(zhǔn)備。實(shí)習(xí)對于鍛煉學(xué)生能力，了解社會、熟悉民生，看清自己的定位是很有幫助的。而從就業(yè)角度來看，擁有豐富實(shí)習(xí)經(jīng)歷的學(xué)生在就業(yè)時的優(yōu)勢也是比較明顯的。二、實(shí)習(xí)意義實(shí)習(xí)是一個極為重要的實(shí)踐性教學(xué)環(huán)節(jié)。通過實(shí)習(xí)，使學(xué)生在社會實(shí)踐中接觸與本專業(yè)相關(guān)的實(shí)際工作，增強(qiáng)感性認(rèn)識，培養(yǎng)和鍛煉學(xué)生綜合運(yùn)用所學(xué)的基礎(chǔ)理論、基本技能和專業(yè)知識，去獨(dú)立分析和解決實(shí)際問題的能力，把理論和實(shí)踐結(jié)合起來，提高實(shí)踐動手能力，為學(xué)生畢業(yè)后走上工作崗位打下一定的基礎(chǔ)同時可以檢驗(yàn)教學(xué)效果，為進(jìn)一步提高教育教學(xué)質(zhì)量，培養(yǎng)合格人才積累經(jīng)驗(yàn)。計算機(jī)是一門對實(shí)踐要求較高的學(xué)科，通過專業(yè)實(shí)習(xí)，使學(xué)生能熟悉有關(guān)計算機(jī)專業(yè)的各個領(lǐng)域，使學(xué)生畢業(yè)后能勝任與本專業(yè)相關(guān)的工作。大學(xué)期間學(xué)習(xí)了很多，經(jīng)歷了很多，得到的是學(xué)習(xí)能力、處事能力和一些專業(yè)知識。可面對社會，我們經(jīng)驗(yàn)太少，思想單純畢業(yè)實(shí)習(xí)，給了我們一個了解社會，增加經(jīng)驗(yàn)，熟悉工作單位的機(jī)會。鍛煉自己的動手能力，將學(xué)習(xí)的理論知識運(yùn)用于實(shí)踐當(dāng)中，反過來還能檢驗(yàn)書本上理論的正確性，有利于融會貫通。同時，也能開拓視野，完善自己的知識結(jié)構(gòu)，達(dá)到鍛煉能力的目的。一切都是為了讓實(shí)踐者對本專業(yè)知識形成一個客觀，理性的認(rèn)識，從而不與社會現(xiàn)實(shí)相脫節(jié)。此外通過理論聯(lián)系實(shí)際，鞏固所學(xué)的知識，提高處理實(shí)在整個網(wǎng)建建設(shè)過程中，在很多地方，給予了我耐心且精心地指導(dǎo)，使我對相關(guān)的概念和原理的理解和把握更形象、更準(zhǔn)確，對我的整個開發(fā)進(jìn)程幫助很大。實(shí)習(xí)成功檢驗(yàn)了大學(xué)幾年所學(xué)專業(yè)知識。實(shí)踐出真知，實(shí)習(xí)使我所學(xué)的知識不再是空洞的理論。這次實(shí)習(xí)是對所學(xué)知識的綜合應(yīng)用，充分發(fā)揮了我的創(chuàng)新能力和想象力，使我動手解決實(shí)際問題的能力有了很大提高。通過實(shí)習(xí)，充分將理論與實(shí)踐結(jié)合起來，達(dá)到了學(xué)以致用的目的。通過獨(dú)立思考、團(tuán)結(jié)協(xié)作、查找資料等各種途徑，圓滿地完成了既定任務(wù)，知識順利通過了實(shí)踐的檢驗(yàn)。實(shí)習(xí)讓我懂得了團(tuán)隊(duì)和進(jìn)步的關(guān)系。因?yàn)檎麄€項(xiàng)目很龐大，邏輯性很強(qiáng)，工作量大，同時限于我們的知識、經(jīng)驗(yàn)和時間，不是每一個員工能獨(dú)立地完成的。它需要通過員工們之間相互學(xué)習(xí)、相互幫助、團(tuán)結(jié)協(xié)作才能保證任務(wù)更好、如期地完成。因此本次實(shí)習(xí)帶給了我們很多溝通交流的機(jī)會，大大增進(jìn)了我們之間的互信與友誼。我所在的組共4人，自稱“然后小分隊(duì)”，在整個開發(fā)過程中，密切配合、充分交流，不僅出色地完成了任務(wù)，而且隊(duì)員之間的親近度和信任度也大大加強(qiáng)。通過實(shí)習(xí)，使我系統(tǒng)地復(fù)習(xí)和應(yīng)用了所學(xué)的知識，增強(qiáng)了我對相關(guān)知識在宏觀上的把握和微觀上的理解，使我的專業(yè)技能和專業(yè)素質(zhì)有了質(zhì)的提高。然而，實(shí)習(xí)中也暴露了不少存在的問題。主要體現(xiàn)在以下幾方面其一是基礎(chǔ)知識不夠扎實(shí)。開發(fā)這類網(wǎng)站不同于一般網(wǎng)站的開發(fā)，它功能復(fù)雜、邏輯性很強(qiáng)、安全性要求高，因此對我們知識和技能的要求很高。在開發(fā)過程，我在知識和技能方面存在的問題逐漸暴露出來，成為開發(fā)中的拌腳石。開發(fā)因?yàn)橹R和技能的限制，明顯落后于某些員工的開發(fā)進(jìn)程。同時，很多問題不得不求教于他人。其二是知識面不夠廣。在開發(fā)過程中，發(fā)現(xiàn)有的知識點(diǎn)從來沒有涉及過，導(dǎo)致開發(fā)時，不知道從何入手，開發(fā)一度中斷，以致抽出大量的時間來補(bǔ)充相關(guān)知識。鑒于此，今后我需要充分利用空閑時間，加強(qiáng)自己對計算機(jī)專業(yè)相關(guān)知識的學(xué)習(xí)，增加自己相關(guān)知識的廣度和深度。學(xué)習(xí)不僅是從網(wǎng)絡(luò)上下載學(xué)習(xí)視頻，還應(yīng)該多向有能力的同行請教。更要盡量將學(xué)習(xí)的東西及時地運(yùn)用到實(shí)踐中，在實(shí)踐中學(xué)習(xí)。另外，計算機(jī)專業(yè)相關(guān)知識，國內(nèi)趕不上國際，應(yīng)該加強(qiáng)自己的英語水平，以便于閱讀國外的相關(guān)文章。還有就是理論與實(shí)踐分離。在開發(fā)過程中，經(jīng)常有這樣的體會，有的理論雖然看似掌握了，但操作起來，遇到了不少麻煩。后來發(fā)現(xiàn)，原來問題就出在重理論輕實(shí)踐上。正是因?yàn)樵趯W(xué)校學(xué)習(xí)期間，把太多的時間和精力放在了課本中空洞的理論學(xué)上去了，甚至僅僅是為了應(yīng)試而學(xué)習(xí)，這樣學(xué)出來的東西，與實(shí)際相關(guān)太遠(yuǎn)。因此，在以后的學(xué)習(xí)中，不能用在校期間的學(xué)習(xí)方式，而應(yīng)該把理論和實(shí)踐相結(jié)合，使理論得到充分的實(shí)踐檢驗(yàn)。

簡介：字?jǐn)?shù)英文字?jǐn)?shù)英文28142814單詞，單詞，1557015570字符；中文字符；中文49124912漢字漢字出處出處SAXENASAXENAA,A,KAUSHIKKAUSHIKN,N,KAUSHIKKAUSHIKNNIMPLEMENTINGIMPLEMENTINGANDANDANALYZINGANALYZINGBIGBIGDATADATATECHNIQUESTECHNIQUESWITHWITHSPRINGSPRINGFRAMEFRAMEWORKWORKININJAVAJAVAJ2EEJ2EEBASEDBASEDAPPLICATIONC//PROCEEDINGSAPPLICATIONC//PROCEEDINGSOFOFTHETHESECONDSECONDINTERNATIONALINTERNATIONALCONFERENCECONFERENCEONONINFORMATIONINFORMATIONANDANDCOMMUNICATIONCOMMUNICATIONTECHNOLOGYTECHNOLOGYFORFORCOMPETITIVECOMPETITIVESTRATEGIESSTRATEGIESACM,ACM,2016520165外文文獻(xiàn)外文文獻(xiàn)IMPLEMENTINGANDANALYZINGBIGDATATECHNIQUESWITHSPRINGFRAMEWORKINJAVAJ2EEBASEDAPPLICATIONABSTRACT–INTHETIMEOFBIGDATATECHNIQUESWITHSPRINGFRAMEWORKONJAVA,WEBSERVERSORAPPLICATIONSERVERASTHESIGNIFICANTCHANNELINBIGDATASHOULDBEUPDATEDTOMEETEXECUTIONANDFORCEIMPERATIVESSIGNIFICANTENDEAVORSHAVEBEENPUTRESOURCESINTOWEBSERVERORAPPLICATIONSERVERCONVEYANCEANDWEBSTORINGPROCEDURES,BUTVERYFEWEFFORTSHAVEBEENPAIDTOIMPROVEHARDWAREFAVOREDWEBTYPESERVICESBIGDATAWITHSPRINGFRAMEWORKINJAVAISAPROMISINGBUSINESSANDCOMPUTINGMODELINWEBFRAMEWORKSPRINGISTHEMOSTPOPULAROPENSOURCEJAVAAPPLICATIONFRAMEWORKITCOMBINESALLTHEINDUSTRYSTANDARDFRAMEWORKSFOREGSTRUTSANDHIBERNATEANDAPPROACHESINTOONEBUNDLETHEEXPENSEANDWORKINGCOSTSOFDATACENTERSHAVESKYROCKETEDWITHTHEINCREASEINCOMPUTINGCAPACITYBIGDATAISACONCEPTTHATDEFINESTHELARGEVOLUMEOFBOTHSTRUCTUREDANDUNSTRUCTUREDDATA–THATINUNDATESABUSINESSONADAYTODAYENVIRONMENTTHISRESEARCHARGUESTHENEEDTOPROVIDENOVELMETHODANDTOOLSTOBOLSTERPROGRAMMINGENGINEERSMEANINGTOENHANCEVITALITYPRODUCTIVITYANDMINIMIZETHESUBSEQUENTFROMOUTLINING,CREATING,SENDINGANDRUNNINGPROGRAMMINGINBIGDATAWITHSPRINGFRAMEWORKKEYWORDS–JAVA,J2EE,HADOOPFRAMEWORK,SPRING,BIGDATAJAVAJAVAISONEOFTHEMOSTROBUST,MAINLYUSEDANDPERFECTPROGRAMMINGLANGUAGEFORCREATINGENTERPRISEAPPLICATIONSOVERTHEYEARS,JAVADEVELOPMENTHASEVOLVEDFROMAPPLETSRUNONAWEBBROWSERCHROME,MOZILATOLARGEENTERPRISEDISTRIBUTEDAPPLICATIONSRUNONMULTIPLESERVERSPRESENTLY,JAVAHASTHREEDIFFERENTFLAVORS,ANDEACHADDRESSESCERTAINPROGRAMMINGREQUIREMENTSSPRINGFRAMEWORKISTHEMOSTWELLKNOWNAPPLICATIONADVANCEMENTSTRUCTUREFORBIGBUSINESSJAVAAGREATMANYDESIGNERSAROUNDTHEGLOBEUSESPRINGFRAMEWORKTOMAKEHIGHPERFORMING,EFFORTLESSLYTESTABLE,REUSABLECODEJ2EEJ2EEUTILIZESAMULTILEVELCIRCULATEDAPPLICATIONMODELTHEREARETHREELEVELSINTHECOMMONPLACEJ2EEAPPLICATIONMODELPRESENTATIONTIER,BUSINESSLOGICTIERANDDATATIERFRAMEWORKTHEFRAMEWORKISINTENDEDTOSTREAMLINETHEFULLIMPROVEMENTCYCLE,FROMBUILDING,TOSENDING,TOLOOKINGAFTERAPPLICATIONSITCANBECONSIDEREDASANARRANGEMENTOFCAPACITIESHELPINGTHEDESIGNERSINMAKINGTHEAPPLICATIONSIISPRINGFRAMEWORKSPRINGISALIGHTWEIGHTFRAMEWORKITCANBECONSIDEREDASASTRUCTUREOFSYSTEMSINLIGHTOFTHEFACTTHATITGIVESBACKINGTODIFFERENTSTRUCTURES,FOREXAMPLE,STRUTS,HIBERNATE,TAPESTRY,EJB,JSFANDSOFORTHTHESYSTEM,INMOREEXTENSIVESENSE,CANBECHARACTERIZEDASASTRUCTUREWHEREWEDISCOVERARRANGEMENTOFTHEDIFFERENTSPECIALIZEDISSUESFEATURESOFSPRINGFRAMEWORK

簡介：本科畢業(yè)設(shè)計（論文）英文翻譯英文翻譯題目ASP的發(fā)展學(xué)生姓名專業(yè)班級學(xué)號院（系）指導(dǎo)教師（職稱）完成時間2011年5月26日2THESECONDTHEDEVELOPINGHISTORYANDCLASSIFICATIONOFASPSEENFROMTHEPRESENT,ASPISASEMERGINGANDPROPOSINGFORMALLYITISONLYATHINGFROMTHEENDOF1998TOTHEBEGINNINGOF1999OFAKINDOFMODEANDUNTILFROMTHEENDOF1999TOTHEBEGINNINGOF2000TOAGREATEXTENT,ASPFIELDRELEVANTOUTSTANDINGBEHAVIOURSATTHECAPITALMARKETOFCOMPANYJUSTCAUSEPEOPLESEXTENSIVECONCERNINFACTSPEAKINGFROMTHEINTENSIONANDESSENCEOFASPMODE,ITISNOTTHEBRANDNEWTHINGS,BUTTHEMODETHATHADONCEHAD,HASBEENGIVENTHENEWVITALITYATINTERNETAGEDURINGTHISFESTIVAL,WEWILLREVIEWTHECOURSETHATASPPRODUCEDEVELOPMENTANDDEVELOP,INORDERTOHELPTHEESSENCEOFBETTERDEEPUNDERSTANDINGASPATTHEEND,WEWILLCONCENTRATEONINTRODUCINGTHESITUATIONWHICHENTERPRISESDIVIDEFROMDIFFERENTSTANDARDSINASPFIELDATPRESENTTHETHIRDTHEDEVELOPMENTFOUNDATIONOFASPMODEASPASONEBRANDNEWCONCEPT,PROPOSITIONANDITTAKESSHAPETOBEJUSTTIMEFORMORETHANHALFAYEAROFIT,BUTINUSAANDOTHERFASTDEVELOPINGCOUNTRIESOFITINDUSTRY,ASPISBECOMINGAKINDOFNEWDEVELOPINGBUSINESSMODEOFLEADINGECOMMERCEINTHEFUTURE,MAINMATURITYBASEDONFOLLOWINGITTECHNOLOGYOFPRECONDITIONTHATASPPRODUCESANDDEVELOPSPOPULARIZATIONOFINTERNETINTERNETDEEPENSPEOPLESLIFEPROGRESSIVELY,ALARGENUMBEROFSOLUTIONSBASEDONWEBAREEMERGINGCONSTANTLY,ALLTHESEMAKELONGRANGEAPPLICATIONSCHEMEBASEDONHOSTCOMPUTERBECOMEPOSSIBLETHEBANDWIDTHISINCREASINGANDDROPPINGWITHTHEPRICECONSTANTLYCONSTANTLYCOMMUNICATIONPERFORMANCEANDBANDWIDTHEXPENSESREDUCEDCONTINUOUSLYINCREASED,MAKETHEAPPLICATIONPROGRAMATTHEHOSTCOMPUTERABLETOVISITTHROUGHINTERNETANDTIGHTCLIENTWHETHERCLIENT/SERVERCANUSEBYSHARINGUNDERTHEENVIRONMENTTHEREMOTEACCESSINASPCONCEPT,USERSHAVEALREADYBEENACCUSTOMEDTOUNDERTHEENVIROMENTOFCLIENT/THESERVER,THISMAKEREMOTEACCESSANDISITISITBECOMEACCEPTABLEFIRSTBUSINESSMODETOUSETOSHARETHEBROWSERBECOMESFIGUREINTERFACEAPPLICATIONPROGRAMACCEPTINGEXTENSIVELYTHEWIDE

簡介：外文原文J2EEISACOMPLETELYDIFFERENTFROMTHETRADITIONALAPPLICATIONDEVELOPMENTTECHNOLOGYINFRASTRUCTURE,CONTAINSMANYCOMPONENTS,THEMAJORAPPLICATIONSYSTEMTOSIMPLIFYANDSTANDARDIZETHEDEVELOPMENTANDDEPLOYMENT,ANDTOIMPROVEPORTABILITY,SECURITYANDTHEVALUEOFREUSEJ2EECOREISAGROUPOFTECHNICALSPECIFICATIONSANDGUIDELINES,WHICHCONTAINSVARIOUSCOMPONENTS,SERVICESTRUCTUREANDTHETECHNICALLEVEL,HAVECOMMONSTANDARDSANDSPECIFICATIONSFORALLTOFOLLOWTHESTRUCTUREOFJ2EEPLATFORMBETWEENTHEEXISTENCEOFGOODCOMPATIBILITY,ADDRESSINGPASTUSEOFTHEBACKENDENTERPRISEINFORMATIONPRODUCTSCANNOTBECOMPATIBLEWITHEACHOTHER,RESULTINGININTERNALOREXTERNALINTEROPERABILITYDIFFICULTDILEMMAINTHEJ2EEFRAMEWORK,DEVELOPERSCANFOLLOWNORMATIVEBASIS,ANDDEVELOPENTERPRISELEVELAPPLICATIONS,ANDJ2EEDIFFERENTSUPPLIERS,WITHTHESUPPORTOFDIFFERENTJ2EEVERSIONOFTHEPROPOSEDSTANDARDSTOENSURETHATDIFFERENTJ2EEPLATFORMANDCOMPATIBILITYBETWEENPRODUCTSINOTHERWORDS,THESTRUCTUREOFTHEPLANTBASEDJ2EEAPPLICATIONSCANBASICALLYBEDEPLOYEDINDIFFERENTAPPLICATIONSONTHESERVER,ORTHENEEDTOCARRYOUTONLYASMALLAMOUNTOFCODECHANGESTHATCANSIGNIFICANTLYIMPROVEAPPLICATIONPORTABILITYPORTABILITYJ2EEFROMTHESUNSUNVENDORSSUCHASIBMANDCOORDINATEDDEVELOPMENTOFTHEINDUSTRYFROMTHETECHNICALSPECIFICATIONSTOENTERPRISESISBETWEENENTERPRISESJAVACOMPUTINGORIENTEDDEVELOPMENTENVIRONMENTJ2EEARCHITECTUREDEFINESVARIOUSKINDSOFCOMPONENTS,SUCHASWEBCOMPONENT,EJBCOMPONENTANDSOON,ANDVARIOUSCOMPONENTSCANBEREUSEDREUSE,HASCOMPLETEDTHEDEVELOPMENTOFCOMPONENTS,ORISDERIVEDFROMPROCUREMENTBYTHECOMPONENTSOFTHEMARKETAREFURTHERASSEMBLEDINTODIFFERENTSYSTEMSFORDEVELOPERS,NEEDONLYFOCUSONTHEAPPLICATIONSOFTHEBUSINESSLOGICANDSTRUCTUREDESIGN,ASFORTHEBOTTOMOFTHECUMBERSOMEPROCEDURESWRITINGCANBEPAIREDWITHDIFFERENTDEVELOPMENTPLATFORMS,INORDERTOALLOWTHEAPPLICATIONSYSTEMDEVELOPMENTANDDEPLOYMENTEFFICIENCYINCREASEDDRAMATICALLYJ2EESTANDARDISTHECOREOFENTERPRISEJAVABEANSEJBSEJBINACCORDANCEWITHTHEDIFFERENTCHARACTERISTICSISCURRENTLYDIVIDEDINTOTHREE,NAMELYSESSIONBEAN,ENTITYBEAN,ASWELLASMESSAGEDRIVENBEANWHICHSESSIONBEANANDEJBENTITYBEANISTHEANCESTOROFTHETWOEJBSPECIFICATIONSINTHEEJB1XVERSIONHASBEENINTRODUCEDTHERE,ANDMESSAGEDRIVENBEANISEMERGINGINTHEEJB20OFTHESPECIFICATIONSATPRESENTTHEINDUSTRYMANYPROGRAMMERS,ORWEBPAGEDESIGN,MOREUSEOFJSP/SERVLETTHECONVENIENCEOFTHEJ2EESERVERONTHEFURTHERDEVELOPMENTOFRELATEDAPPLICATIONS,ORINTEGRATEINTERNALRESOURCESOFALLKINDSJAVA2PLATFORM,INACCORDANCEWITHTHEDIFFERENTAREASOFAPPLICATION,ISDIVIDEDWEBSERVICESAREBEINGIMPROVEDCONTINUOUSLY,INAVERYINTELLIGENTANDDYNAMICMEANSTOCARRYOUTTHESEFLEXIBLEWEBSERVICESCANBEUNDERSTOODINTHECONTEXTOFTHEREQUEST,ANDINEACHSPECIFICCIRCUMSTANCEGENERATEDYNAMICRESULTSTHESESERVICESAREDEPENDINGONTHEUSERSIDENTITY,LOCATION,ASWELLASAREQUESTTOCHANGETHEREASONSFORTHEDIFFERENTTREATMENTTOPRODUCEUNIQUE,CUSTOMIZABLEOPTIONSTHISCOORDINATIONMECHANISMFORTHOSEWHOHADONLYTHEENDRESULTOFINTERESTEDUSERS,ITISCOMPLETELYTRANSPARENTTHISWEBSERVICEFOLLOWEDBYTHEXMLSTANDARDTHINGSCANIMPROVECOMMUNICATIONSPERFORMANCEDEVELOPERSWILLBEABLETOUSEDIFFERENTPLATFORMS,PRODUCTSANDSTANDARDSTOACHIEVEANUMBEROFPOSSIBILITIESTHROUGHTHISSTANDARD,DEVELOPERSCANBUILDASYSTEMOFWEBSERVICESSOTHATTHEYOFFERTHEGREATESTABILITYTOWORKTOGETHERTHISWHITEPAPERDESCRIBESHOWTOFACILITATETHEUSEOFJAVAANDXMLTECHNOLOGYTOACHIEVEWEBSERVICESARCHITECTUREITDEMONSTRATESTHATTHEWEBSERVICESAKEYPARTOFEACHANDHOWTOCOMBINETHEMYOUWILLBEBASEDONXMLWEBSERVICESANDHOWTHESTRUCTUREANDJ2EEINTEGRATION,THEREISAMOREINDEPTHUNDERSTANDINGOFHOWWEBUILDWEBSERVICESUSINGJ2EESTARTTHISPARTWILLENABLEYOUONHOWTOESTABLISHAWEBSERVICESAREANUNDERSTANDINGCONCLUDEDGENERALLYSPEAKING,INTHEAFFAIRSOFDIFFERENTELECTRONICCOMMUNICATIONSANDCOLLABORATIONBETWEENTHEREWILLBEMANYOBSTACLESDISPARATESYSTEMS,SECURITYRESTRICTIONSANDTHESAMEDATAFORMAT,ALOTOFB2BSYSTEMINTHEIROWNFIELDSORONLYFORMEDINTHECUSTOMERBASEWEBSERVICESWILLCHANGEALLTHIS,SOTHATTHEDIFFERENTCOMMUNICATIONSINTOTHEAFFAIRSOFEACHOTHERMAYBE,ITISNOTEWORTHYTHATTHISWILLREDUCETHEESTABLISHMENTOFTHECOMMERCIALSITEDEVELOPMENTANDMAINTENANCECOSTSINTHEESTABLISHMENTOFWEBSERVICES,THEREARETHREEMAJORSTEPS1ESTABLISHEDCLIENTCONNECTIVITYTOALLOWAPPLETS,APPLICATIONS,BUSINESSPARTNERS,BROWSERSANDPDASUSINGWEBSERVICES2REALIZATIONOFWEBSERVICESINCLUDEWORKFLOW,DATAACCESS,ANDDATAACCESSANDBUSINESSLOGICTHESEFEATURESAREHIDDENINWEBSERVICES,ANDFORTHEWORKOFTHECLIENT3CONNECTEDBACKOFFICESYSTEMSTHISSYSTEMMAYINCLUDEONEORMOREDATABASES,THEEXISTINGENTERPRISEINFORMATIONSYSTEMS,BUSINESSPARTNERSORTHEIROWNWEBSERVICESSYSTEM,ASWELLASMULTIPLESYSTEMSTOSHAREDATAYOUCANUSEJ2EETOACHIEVETHESETHREEOBJECTIVESJ2EEDEVELOPMENTUSINGWEBSERVICESBASEDONTHEFOLLOWINGTWOTECHNOLOGIESXMLTECHNOLOGIESINWEBSERVICES,XMLSTANDARDISVERYIMPORTANTXMLISADATAFORMAT,ITCANBEACOHERENTAPPROACHTOPERFORMANCEDATA,ANDITCANBEINAPEERTOPEERNETWORKINTHEFORMOFTRANSMISSIONTHISDIFFERENTXMLSTANDARD,TOGETHERWITHSPECIFICAPPROACHISDESIGNEDTOSUPPORTSPECIFICACTIVITIESJAVATECHNOLOGY

簡介：SCALEUPXSCALEOUTACASESTUDYUSINGNUTCH/LUCENEMAGEDMICHAEL,JOSéEMOREIRA,DORONSHILOACH,ROBERTWWISNIEWSKIIBMTHOMASJWATSONRESEARCHCENTERYORKTOWNHEIGHTS,NY105980218向上向外擴(kuò)展關(guān)于研究向上向外擴(kuò)展關(guān)于研究NUTCH/LUCENE的互操作性的互操作性摘要摘要在過去幾年中，多處理系統(tǒng)提高運(yùn)行能力的解決方案一直困擾著主流的商業(yè)計算。主要的服務(wù)器供應(yīng)商繼續(xù)提供越來越強(qiáng)悍的機(jī)器，而近期，向外擴(kuò)展的解決方案，規(guī)模較小的機(jī)器集群的形式，更加被商業(yè)計算所接受。向外擴(kuò)展的解決方案是以網(wǎng)絡(luò)為中心高吞吐量的特別有效的應(yīng)用。在本文中，我們調(diào)查了向上擴(kuò)展和向外擴(kuò)展這兩種相對的方法在一個新興的搜索應(yīng)用程序中并行的情況。我們的結(jié)論表明，向外擴(kuò)展的策略即使在向上擴(kuò)展的機(jī)器中依然可以表現(xiàn)良好。此外，向外擴(kuò)展的解決方案提供更好的價格/性能比，雖然增加了管理的復(fù)雜性。1簡介簡介在過去10年里的商業(yè)計算中，我們目睹了計算機(jī)系統(tǒng)單處理器到多處理器的全面換代。80年代初期引發(fā)的計算機(jī)行業(yè)的科技革命導(dǎo)致它占領(lǐng)了90年代商業(yè)計算大部分的市場。我們可以根據(jù)不同的做法，將采用多處理器系統(tǒng)的運(yùn)算（包括商業(yè)和技術(shù)/科學(xué)）分為兩個大組向上擴(kuò)展大型共享存儲服務(wù)器的部署應(yīng)用（多處理系統(tǒng)）。向外擴(kuò)展多個小相互服務(wù)器應(yīng)用程序的部署（網(wǎng)絡(luò)集群）。在第一階段的商業(yè)計算革命中，向上擴(kuò)展的優(yōu)勢是顯而易見的。多處理系統(tǒng)規(guī)模的增加，處理器時鐘速率的提高，提供更高的計算能力來處理事物的需要，即使是目前最大的公司也面臨這些問題對稱多處理系統(tǒng)是目前的主流商業(yè)計算。IBM、惠普和SUN這樣的公司每一代人都投入巨資以建設(shè)更大、更好多處理系統(tǒng)。最近，針對于商業(yè)計算的向外擴(kuò)展越來越被關(guān)注。對于許多新的以網(wǎng)絡(luò)產(chǎn)品為主的企業(yè)（例如谷歌、雅虎、EBAY、亞馬遜），使用向外擴(kuò)展是是解決必要計算能力唯一的辦法。另外，計算機(jī)制造商更容易部署基于機(jī)架最佳化和刀片服務(wù)器的向外擴(kuò)展解決方案。向外擴(kuò)展在過去好多年一直是大規(guī)?？茖W(xué)計算的唯一可行方案，我們可以觀察世界500強(qiáng)系統(tǒng)的發(fā)展。群服務(wù)器相似的能力4處理器的配置，1632培養(yǎng)基的最大內(nèi)存，內(nèi)置以太網(wǎng)，并擴(kuò)展卡兩種光纖通道，INFINIBAND的，MYRINET的，或10GBIT/S以太網(wǎng)。同時還提供有多達(dá)8個處理器的雙寬葉片配置和額外的內(nèi)存。BLADECENTERH是最新的IBMBLADECENTER機(jī)架。與之前的BLADECENTER–1機(jī)架相比，它有14個刀片插槽的刀片服務(wù)器。它也有多達(dá)兩個管理單元，4個交換機(jī)模塊，四橋模塊和四個高速交換機(jī)模塊的空間。（在機(jī)架上交換機(jī)模塊3與4和橋梁模塊3與4均共享相同的插槽。）我們在每個機(jī)架配備兩個1GBIT/S以太網(wǎng)交換機(jī)模塊和2個光纖通道交換機(jī)模塊。三種不同葉片中使用了我們的集群JS21（POWERPC處理器），HS21（英特爾WOODCREST處理器）和LS21（AMDOPTERON處理器）。每一個刀片（JS21，HS21，或LS21）既有本地磁盤驅(qū)動器（73GB的容量）也有雙光纖通道的網(wǎng)絡(luò)適配器。在光纖通道適配器，兩個用于連接的刀片光纖通道交換機(jī)，都被插入機(jī)架。大約一半的集群（4底盤）組成JS21刀片。這是四處理器（雙插槽，雙核心）的POWERPC970片，運(yùn)行在25GHZ。每一個刀片有8GIB的內(nèi)存。在本文中的結(jié)論報告中，我們著重關(guān)注這些JS21刀片。DS4100存儲子系統(tǒng)包括雙存儲控制器，每一個都配有2GB/S的光纖通道接口，并且在主要抽屜中容納了14個SATA驅(qū)動器。盡管每個DS4100是搭配一個專門的BLADECENTERH機(jī)架，但由于我們運(yùn)行的光纖通道網(wǎng)絡(luò)，集群中的任何刀片都可以可以查看到存儲系統(tǒng)的每個邏輯單元。3NUTCHNUTCH/LUCENELUCENE的工作量的工作量NUTCH/LUCENE是一種執(zhí)行搜索應(yīng)用的框架。這是基于非結(jié)構(gòu)化數(shù)據(jù)（網(wǎng)頁）搜索的應(yīng)用程序日益增多的表現(xiàn)。我們已經(jīng)習(xí)慣了谷歌和雅虎這樣開放互聯(lián)網(wǎng)運(yùn)作的搜索引擎。然而，搜索也是公司局域網(wǎng)、內(nèi)部網(wǎng)絡(luò)的一個重要的運(yùn)作。NUTCH/LUCENE完全是基于JAVA和其代碼的開源性。NUTCH/LUCENE，作為一個典型的搜尋工作，有三個主要部分組成（1）檢索，（2）索引，和（3）查詢。在本文中，我們列出查詢結(jié)果的組成部分。為了完整性，我們簡要介紹了其他組成部分。抓取操作是瀏覽和檢索信息的網(wǎng)頁，然后輸入將要搜索的文本信息。這一套文件在搜索術(shù)語稱為語料庫。爬行可以同時在內(nèi)部網(wǎng)絡(luò)（內(nèi)聯(lián)網(wǎng)）以及外部網(wǎng)絡(luò)（因特網(wǎng)）內(nèi)執(zhí)行。檢索，尤其是在互聯(lián)網(wǎng)，是一個復(fù)雜的工作。無論是有意還是無意，總有許多的網(wǎng)站難以檢索到。檢索的性能通常是被檢索系統(tǒng)和被檢索系統(tǒng)之間的網(wǎng)絡(luò)帶寬給制約著。在NUTCH/LUCENE的搜索框架包含一個使用MAPREDUCE編程模型的并行索引操作書面。MAPREDUCE提供了一個方便的方式處理一個重要的（盡管有限）

簡介：外文資料翻譯JOURNALOFMATERIALSPROCESSINGTECHNOLOGY1392003212–218COMPUTERISEDPRICEQUOTINGSYSTEMFORINJECTIONMOULDMANUFACTURESFCHANA,CKLAWB,KKCHANCASCHOOLOFSCIENCEANDTECHNOLOGY,THEOPENUNIVERSITYOFHONGKONG,HONGKONG,PRCHINABHASBROFAREASTLTD,HONGKONG,PRCHINACDEPARTMENTOFMANUFACTURINGENGINEERING,HONGKONGINSTITUTEOFVOCATIONALEDUCATION,CHAIWAN,HONGKONG,PRCHINAABSTRACTTHEBUDGETFORMAKINGINJECTIONMOULDSISINEVITABLYTHEMAJORDEVELOPMENTEXPENSETHATNEEDSTOBEWELLPREPAREDANDCONTROLLEDINTHETOYSINDUSTRYTHISISESPECIALLYIMPORTANTFORMAKINGHARDTOYSSUCHASACTIONFIGURETOYS,WHICHACCOUNTEDFOR277GROWTHASINSEPTEMBER1999INTHETOTALTOYSINDUSTRYTHECURRENTMAJORPRACTICEINTHETOYSINDUSTRYFORQUOTINGPRICESFORMANUFACTURINGANINJECTIONMOULDISEITHERBYEXPERIENCEORBYCOMPARISONWITHASIMILARPRODUCTOWINGTOTHECOMPLEXITYOFMOULDCONSTRUCTIONANDTHEINCREASINGVARIETYOFTOYS,THEAPPLICATIONOFSOMECOMMERCIALLYAVAILABLECOMPUTERIZEDPACKAGEFORESTIMATINGTHECOSTOFMANUFACTURINGINJECTIONMOULDSISINACCURATE,IMPRACTICALORSLOWTHISCONSEQUENTLYLEADSTOANUNDERESTIMATEDQUOTEWHICHWILLALSOBECOMEADISASTERTOTHEMOULDMANUFACTURERSINTERMSOFMANPOWERPLANNING,DELIVERYSCHEDULEANDPROFITSINORDERTOOVERCOMETHESEPRACTICALSITUATIONSANDTOMEETTHEKEENMARKETCOMPETITION,AUSERFRIENDLY,MOREACCURATEMOULDCOSTCALCULATIONANDQUOTATIONSYSTEMSHOULDBEINTRODUCEDTHISPAPERFOCUSESONINTRODUCINGACOMPUTERIZEDQUOTATIONSYSTEMFORINJECTIONMOULDMANUFACTURECQSIMCODEDINVISUALBASICTHISCANBEPERFORMEDONAPERSONALCOMPUTERPCTHESYSTEMISTYPICALLYUSEFULFORTHETOYSINDUSTRYAREA,BUTITCANALSOBEAPPLIEDINPLASTICSRELATEDINDUSTRYBASEDUPONADATABASEOFCOSTINGELEMENTS,ANINTEGRATEDSYSTEMISESTABLISHEDFORTHEPURPOSEOFLEARNING,NOTUSERFRIENDLYANDTHEMOULDCOSTESTIMATEISNOTACCURATEIFUSERSDONOTWELLUNDERSTANDTHEMEANINGSFORINDIVIDUALINPUTOWINGTOTHESEFACTORS,THECURRENTMAJORPRACTICEINTHEINDUSTRYFORQUOTINGTHEPRICEOFANINJECTIONMOULDISSTILLFORITTOBEMADEBYEXPERIENCEORBYMAKINGCOMPARISONTOSIMILARTOYSPRODUCTSANEMPIRICALCOSTESTIMATIONMETHODISGENERALLYUSED,WHICHISREGARDEDASAFASTERANDAMOREUSERFRIENDLYMETHODTHISCOSTESTIMATIONAPPROACHAGREEDQUITECLOSELYWITHMENGESANDMOHREN2THATTHERESPECTIVEMOULDCOSTSARE“OFTENNOTCOMPUTEDATALL”BUT“ESTIMATEDBASEDONEXPERIENCEORINCOMPARISONWITHMOULDSMADEINTHEPAST”MOREOVER,THEFACTTHATTHENUMBEROFORDERISONLY5OFTHENUMBEROFQUOTATIONSISALSOAFFECTINGTHEAMOUNTOFTIMEALLOWEDFORAPROPERQUOTATIONHOWEVER,THEEMPIRICALCOSTESTIMATIONMETHODREQUIRESMOULDMAKERSTOMEMORIZETHEDETAILEDMOULDCONSTRUCTIONSTEPSANDTOOLMATERIALSOCCASIONALLYWHENTHEYFORGETSOMEMOULDCONSTRUCTIONDETAILS,UNDERESTIMATESMAYOCCURWHICHWILLAFFECTTHEMOULDCOSTSIGNIFICANTLYANOTHERPROBLEMISTHEIMPRECISEESTIMATIONOFMATERIALCOST,WHICHCOULDBEAMAINCOSTELEMENTFORMOULDMAKINGINMAINLANDCHINABECAUSETHELABORCOSTWILLBECOMPARATIVELYLOWERITISHARDTOREMEMBERALLTHEPRICESFORSTANDARDCOMPONENTSWITHOUTREFERENCETOHANDBOOKSWITHOUTCALCULATINGTHECOMPONENTS’VOLUMEANDDENSITY,ITISDIFFICULTTOKNOWTHEWEIGHTOFRAWMATERIALSFINALLY,ITISHARDTOESTIMATETHECOSTFORACERTAINMOULDFABRICATIONPROCESSHENCE,THEESTIMATEDCOSTBYTHEEMPIRICALMETHODISQUITEINCONSISTENTTHEORETICALLY,COSTESTIMATORSWHOCALCULATEMOULDCOSTMANUALLYTOAVERYSUBTLEDETAILMAYBEABLETOOBTAINAPRECISEANDCONSISTENTRESULTHOWEVER,ITWOULDBEEXTREMELYTIMECONSUMINGANDIMPRACTICALASOFTWAREPACKAGECANQUICKLYCOMPUTETHEMATERIALCOSTANDMACHININGTIMEDIRECTLYFROMITSDATABASEWITHKNOWNDATAOFTHEPRODUCTAGOODSOFTWAREPACKAGECANALSOIMPROVETHEMANUFACTURER’SMANAGEMENTBYPROVIDINGMACHININGDATA,TIMEFRAMEANDACTUALFABRICATIONDATAFORREFERENCE,TWOTHINGSCANBEIMPROVEDFIRSTLY,THEEFFICIENCYOFTHESHOPFLOORORDESIGNDEPARTMENTCANBEKNOWNANDHENCECANBEIMPROVEDSECONDLY,THEACCURACYOFQUOTATIONCANBEIMPROVEDWHENITDOESNOTMATCHWITHTHEACTUALPRODUCTIONMODELTHISPAPERWILLDISCUSSUPONAPROTOTYPESYSTEMDEVELOPEDTOPROVIDEAMORERELIABLEANDCONSISTENT

簡介：中文中文4500字，字，3000單詞，單詞，15萬英文字符萬英文字符出處出處GONGL,CHEUNGMSCOMPUTERSIMULATIONOFDYNAMICINTERACTIONSBETWEENVEHICLEANDLONGSPANBOXGIRDERBRIDGESJTSINGHUASCIENCETECHNOLOGY,2008,13S17177車輛與大跨度箱梁橋動力相互作用的計算機(jī)模擬雷汞，莫學(xué)祥加拿大，渥太華，渥太華大學(xué)土木工程系，南屯組6N5摘要在與道路交通相關(guān)的移動車輛荷載下，可引起對橋梁結(jié)構(gòu)動態(tài)運(yùn)行狀況的顯著影響，特別是大跨度橋梁來說。當(dāng)前研究的主要目標(biāo)是研究由交通荷載引起的大跨度箱梁橋的動力響應(yīng)。在研究中，利用了有限元技術(shù)建立橋梁系統(tǒng)的三維數(shù)學(xué)模型，對于車橋動力相互作用的分析，車輛被建模成為一個更加接近實(shí)際的三軸和六輪系統(tǒng)模型，以及導(dǎo)出相應(yīng)的動態(tài)相互作用方程組。一座橋梁中橋與車輛間的相互作用是受多種因素影響的。目前的研究主要是集中在一下這些因素上，比如說車輛行駛速度、車輛阻尼比、多條車道、車輛和橋梁的質(zhì)量比和橋梁動力特性等。通過對幾個箱形梁橋的例子進(jìn)行了案例研究，其中包括聯(lián)邦大橋世界上最長的箱形梁橋，來調(diào)查這些因素的影響。關(guān)鍵詞振動，箱梁橋，大跨度橋梁與車輛的相互作用，有限元分析簡介箱型梁橋和上承式橋梁對中、大跨度橋梁，已被證明是非常有效的結(jié)構(gòu)形式，這些橋梁一般包括由預(yù)應(yīng)力混凝土或者加筋混凝土的互相關(guān)連的板單元或鋼結(jié)構(gòu)組成，或通過它們之間的組合，來提供足夠的抗彎強(qiáng)度和抗扭轉(zhuǎn)載荷的結(jié)構(gòu)。箱梁橋通常是能給人美感，且箱梁橋可以很容易地遵循計劃中的任何調(diào)整的要求，且需要的維修量相對其他類型的橋梁也較小。箱梁橋往往顯的比其他類型的橋梁更加苗條和靈活，有韌性。因此，應(yīng)該將注意力集中在如何避免產(chǎn)生過大的加速度和動態(tài)撓度這些易導(dǎo)致行人不適和關(guān)心的問題上來。通常的說，在以扭轉(zhuǎn)為主導(dǎo)模式的橋梁中，特別是人行道的位置，動態(tài)撓度會產(chǎn)生更為顯著的影響，這種模式往往會使人們在對行人在使用橋梁時候產(chǎn)生的振動和舒適性水平產(chǎn)生更加不利的影響。一座橋梁的加速度等級同樣與伸縮振動模式有直接的聯(lián)長為129公里的聯(lián)邦大橋是世界上最長的預(yù)應(yīng)力混凝土箱梁橋,它建設(shè)在咸水中，為橫跨加拿大東部的森伯蘭海峽提供了公路交通聯(lián)系。對于這樣一個典型的跨徑，每個支柱都通過上部結(jié)構(gòu)嚴(yán)格的連接起來，形成一個250M的入口框架。在每一個橋墩之上都有一個96M的懸臂結(jié)構(gòu)。通過海運(yùn)重復(fù)這些入口框架生產(chǎn)21片相同的框架。這些結(jié)構(gòu)通過60M的簡支DROPIN跨徑連接起來。在此次分析中，主跨徑的入口框架被采用。就像在圖二中所表示的一樣，橋梁的交叉連接處是一個預(yù)壓的單箱單室不規(guī)則四邊形。橋梁的總寬度是12M，其中包括11M的車道寬。上部結(jié)構(gòu)的深度從跨中處的45M變化到橋墩處的14M。為了降低在低頻率下的扭轉(zhuǎn)振動，在每個橋墩的交叉連接處都用A精致鋼進(jìn)行加強(qiáng)。圖2聯(lián)邦橋（單位M）橋梁被建成一個3D不連續(xù)的有限元模型。橋梁甲板，箱梁和橫隔板被建模成一個8節(jié)點(diǎn)的殼結(jié)構(gòu)單元。每個殼單元的節(jié)點(diǎn)都包含六個自由度。在X、Y和Z方向的IE裝換和圍繞X、Y、Z軸的旋轉(zhuǎn)。2車輛模型對車橋D動態(tài)相互作用的分析中，車輛被建模成一個三軸和六車輪系統(tǒng)，如圖3所示。車身包括被當(dāng)做集中荷載的一個拖拉機(jī)和一個拖車，通過一個彈簧系統(tǒng)和粘貼在三個車軸上的支撐。質(zhì)量為M2的圖噢拖車點(diǎn)D處，點(diǎn)D位于質(zhì)量為M1的拖拉機(jī),減震器提供粘貼力。軸，車輪，剎車系統(tǒng)，被輪子支撐的暫停系統(tǒng)，總是與橋表明接觸。

簡介：中文中文6940字出處出處COMPUTERSANDELECTRONICSINAGRICULTURE,2010,742238243計算機(jī)和電子技術(shù)在農(nóng)業(yè)中應(yīng)用計算機(jī)和電子技術(shù)在農(nóng)業(yè)中應(yīng)用在受控環(huán)境中用計算機(jī)視覺檢測生菜缺乏鈣癥的植物功能在受控環(huán)境中用計算機(jī)視覺檢測生菜缺乏鈣癥的植物功能DAVIDSTORY，MURATKACIRA，LINGLINGAN，CHIERIKUBOTA，ALIAKOGLUDAVIDSTORY,MURATKACIRA，LINGLINGAN，亞利桑那大學(xué)農(nóng)業(yè)和生物系統(tǒng)工程，1177E第四街，SHANTZ大廈403室，圖森，AZ85721，美國；CHIERIKUBOTA，亞利桑那大學(xué)植物科學(xué)院，1140E南校區(qū)驅(qū)動，“福布斯”大廈303室，圖森，AZ85721，美國；ALIAKOGLU，亞利桑那大學(xué)電氣和計算機(jī)工程，1230E賽道大道，圖森，AZ85721，美國。文章信息文章信息收到初稿于2010年2月10日修訂于2010年7月15日定稿于2010年8月19日摘要摘要常規(guī)的溫室環(huán)境條件是通過觀察確定的。然而，破壞性或侵入性的接觸式測量對實(shí)時監(jiān)測和控制的應(yīng)用領(lǐng)域是不實(shí)際的。在冠層區(qū)域中，機(jī)器視覺有辨別產(chǎn)生應(yīng)激和引導(dǎo)樣品識別應(yīng)激源的潛力。機(jī)器視覺引導(dǎo)下的植物感應(yīng)和監(jiān)控系統(tǒng)是在溫室條件下利用生長的生菜作物顏色和形態(tài)的變化，以此來檢測鈣缺乏。機(jī)器視覺系統(tǒng)主要包括兩個部分組成一個機(jī)器人攝像頭定位系統(tǒng)和圖像處理模塊。機(jī)器視覺系統(tǒng)中提取的植物特征來確定植物整體的生長和健康狀況，包括頂部的預(yù)測冠層區(qū)域（TPCA）作為形態(tài)學(xué)特征；紅，綠，藍(lán)（RGB）和色調(diào)，飽和度，亮度（HSL）的顏色值作為顏色特征熵，能量，對比度和均勻度作為質(zhì)地特征。機(jī)器視覺導(dǎo)引系統(tǒng)能夠自主地提取植物形態(tài)，質(zhì)地和時態(tài)的特征。由此開發(fā)的方法比可視化的人類視覺應(yīng)激檢測早一天確定生菜植物的鈣缺乏。該方法通過提取的植物特征，TPCA，能量，熵和均勻度，在及時發(fā)現(xiàn)生菜作物缺鈣狀況中是最有前途的研究。PUBLISHEDBYELSEVIERBV在傳統(tǒng)的溫室生產(chǎn)中，生長條件是基于人工的觀察或預(yù)設(shè)的環(huán)境參數(shù)，而不是著眼于植物在特定時期的特定需求。接觸式傳感通常用來確定植物的物理特征，過程繁瑣，勞動密集，往往是極具傷害的。利用機(jī)器視覺的非接觸式傳感可確定植物的整體狀況，并確定一株植物的特定需求。這種智能化控制水平的溫室培養(yǎng)將更有效地利用資源和生產(chǎn)能量，并最終提高植物的質(zhì)量，同時降低消費(fèi)者的成本。這種類型的監(jiān)測需要的一些機(jī)器視覺應(yīng)用技術(shù)已經(jīng)被開發(fā)出來。例如，HETZRONI等人（1994年）用神經(jīng)網(wǎng)絡(luò)和統(tǒng)計分類，以植物大小，顏色和個別生菜植物的光譜特征等條件確定植物營養(yǎng)缺乏（鐵，鋅和氮）。該研究報告指出，早期的生菜植物的營養(yǎng)缺乏易被察覺，但癥狀并不容易預(yù)見，直到缺乏的時間長達(dá)正常生長2周以上。他們指出對照組和處理組相比，綠色分量的減少，紅色成分增加是由于生菜植物缺氮后的黃化病。這份報告指出，分類單個像素到分類整株植物對于鑒定植物狀態(tài)是必需的。LING等人（1996年）用生菜葉的光譜和形態(tài)學(xué)特征檢測營養(yǎng)缺乏。這項(xiàng)研究表明，反射率為415到720NM之間的波段，可以用來作為一個機(jī)器視覺實(shí)現(xiàn)的信號波段。越靠近可見的波段越好，因?yàn)樗峁┝溯^佳的信號強(qiáng)度。該研究還提出使用多個信號進(jìn)行植物水分和養(yǎng)分的應(yīng)激檢測的可能性，使用機(jī)器視覺系統(tǒng)可以判斷從缺乏開始的“正?！鄙L和植物狀態(tài)的偏差。MEYER等人（1992年）使用機(jī)器視覺系統(tǒng)檢測單葉和一品紅枝葉，報告說歸一化差異指數(shù)可提供從健康植株辨別氮缺乏的最好方法。種植在溫室和增長室的低氮植物表現(xiàn)出類似的紅色反射（07075米）增加，但由于植物不同數(shù)量的冠層覆蓋，故有不同程度的近紅外反射。以前關(guān)于機(jī)器視覺和傳感的努力是成功地監(jiān)控一片葉，（SEINER等人，1992年；MEYER等人，1992年；SHIMIZU和HEINZ，1995年；REVOLLON等人，1998年）或一株單一植物HETZRONI等人，1994年；KARATEANDYAN，1996年；MURASE等人，1997年；KACIRA等人，2002年；CHANGYINGANDGUANGHUI，2003年以確定植物的狀態(tài)。但是，監(jiān)測作物和從作為冠層的作物取樣對大型系統(tǒng)更加有用（LEINONEN和JONES，2004年；USHADA等人，2007年；HENDRAWAN和MURASE,，2009年）。此外，在商業(yè)環(huán)境中，開發(fā)一個多傳感器平臺，用于實(shí)時監(jiān)控植物冠層健康（成長）和質(zhì)量的系統(tǒng)是可取的。在移動冠層上配備一個人工傳感系統(tǒng)光源和多傳感器的平臺可以實(shí)現(xiàn)這一目的。這種系統(tǒng)可用于檢測生長及發(fā)展的正常偏差和作物應(yīng)激（如營養(yǎng)缺乏或疾?。?。目前的研究目標(biāo)是（1）通過機(jī)器視覺系統(tǒng)制定一個使用形態(tài)，質(zhì)地和時態(tài)的植物特征，自動非接觸監(jiān)測植物的健康成長的方法；（2）在早期檢測溫室種植生菜作物與鈣缺乏有關(guān)的干燒心癥狀時，評估該方法的能力。

簡介：本科畢業(yè)設(shè)計（論文）外文翻譯年級2004級學(xué)號20041235姓名任XXX專業(yè)機(jī)械設(shè)計制造及其自動化指導(dǎo)老師2008年06月外文翻譯第2頁CAPTURETHEDISTINCTFEATURESOFAPARTICULARFONTTYPETHISMANUALPROCESSOFMODELLINGCHARACTEROUTLINESBECOMESRATHERTEDIOUSANDTIMECONSUMINGWHENONEREALISESTHATTHEREARETHOUSANDSOFLATINFONTTYPESAVAILABLE,EACHCOMPRISINGOFATLEAST100CHARACTERSWITHTHEARRIVALOFCOMPUTERS,ATTEMPTSHAVEBEENMADETOAUTOMATETHEDESIGNPROCESSTHISHASRESULTEDINSOFTWAREPROGRAMSUNDERTHEHEADINGSOFCOMPUTERAIDEDDESIGNCAD,MANUFACTURECAMANDGEOMETRICDESIGNCAGDBEINGDEVELOPEDTHEMODEMTYPOGRAPHERUSESAPARTICULARDESIGNPACKAGETOCAPTUREANDMODELADESIREDFONTTHEPROCESSWORKSWITHSOMEPREDEFINEDSPECIFICATIONS,ENSURINGTHATTHEMODELLEDIMAGEEMBODIESTHEDESIREDFONTFEATURESINVIEWOFMODEMCOMMERCIALREQUIREMENTSFORAFASTANDACCURATEMEANSOFCOMPUTERISINGAGIVENOUTLINE,MOSTDESIGNSYSTEMSMAKEUSEOFAMATHEMATICALDESCRIPTIONTHISHASTHEATTRACTION,WHENCOMPAREDTOTHEMANUALAPPROACH,OFPROVIDINGAMODELLEDIMAGEATAFASTERRATEANDYIELDINGWITHIN,ANDBETWEEN,DESIGNSYSTEMSINADDITION,THERESULTINGIMAGEISINAFORMWHICHCANBETRANSFORMEDTRANSLATED,ROTATED,SCALEDFTCWITHOUTDISTORTIONBYUSINGASIMPLEANDANAPPROPRIATEDMATRIXTHESIMPLESTMATHEMATICALDESCRIPTIONMAKESUSEOFSTRAIGHTLINESEGMENTSFROMPOINTTOPOINTAROUNDTHEOUTLINEANEXAMPLEOFTHEAPPROACHISDEPICTEDINFIG1CLEARLY,ITCANBESEENTHATTHERESULTINGMODELGIVESACOARSEREPRESENTATIONOFTHEORIGINALMOREDATAPOINTSANDTHUSLINESEGMENTSWILLBEREQUIREDTOYIELDTHEDESIREDOUTCOMEEVENTHEN,ITISNOTCERTAINWHETHERTHERESULTINGREPRESENTATIONWOULDBEACCEPTABLEFORAESTHETICREASONSANOTHERSHORTCOMINGWITHTHELINEMODELLINGAPPROACHISTHEAMOUNTOFCONTINUITYITGIVESBETWEENJOININGSEGMENTSASITSTANDS,THESYSTEMCANATMOSTPROVIDEZERO

簡介：中文中文4040字外外文翻譯外文資料名稱外文資料名稱THEFUTUREOFCOMPUTERUSEINPRODUCTDESIGN外文資料出處外文資料出處COMPUTERINARTANDDESIGNEDUCATION附件件1外文資料翻譯譯文2外文原文指導(dǎo)教師評語簽名簽名年月日如今，基于計算機(jī)技術(shù)進(jìn)步的影響已經(jīng)普及，電腦在設(shè)計工作室的設(shè)計工作中扮演越來越重要的角色。現(xiàn)在CAD應(yīng)用于設(shè)計和制造過程的各個方面。工業(yè)設(shè)計公司和制造公司用幾種CAD工具來設(shè)計和評估他們的產(chǎn)品。不過，那些能夠被工業(yè)設(shè)計師在整個設(shè)計階段所使用、從最初想法到最終產(chǎn)品的工具的數(shù)量仍然很有限。這是因?yàn)镃AD工具套裝相對較新，而且這些工具要么是為在市場上獲得高額利潤諸如電腦動畫片的制作而設(shè)計的，要么是為了大型市場諸如機(jī)械工程而設(shè)計的。在調(diào)查計算機(jī)輔助工業(yè)設(shè)計工具的演變時，一個主要的問題是在將CAD融入設(shè)計過程前認(rèn)清工藝設(shè)計師的需求和他們工作的性質(zhì)。本次研究的目的是通過博士研究項(xiàng)目的發(fā)現(xiàn)來進(jìn)行辯論。研究的主要目標(biāo)是獲得計算機(jī)輔助工業(yè)設(shè)計領(lǐng)域的相關(guān)技術(shù)與實(shí)用性指示。2．先前的研究回顧．先前的研究回顧本節(jié)介紹作為學(xué)習(xí)一部分的文獻(xiàn)回顧的的成果。早期的學(xué)習(xí)研究著重于尋找該地區(qū)產(chǎn)品大規(guī)模生產(chǎn)設(shè)計過程中的電腦應(yīng)用的有關(guān)文獻(xiàn)。隨著計算機(jī)技術(shù)快速變化，文獻(xiàn)回顧僅限于過去的20年，以便找到藝術(shù)級的。最近信息的主要來源是互聯(lián)網(wǎng)上的期刊文章與文件以及參加過的展覽。文獻(xiàn)回顧導(dǎo)致了許多重復(fù)的問題。這些問題可以分成如下更廣泛的主題1電腦的創(chuàng)造力。2數(shù)據(jù)與其它軟件和硬件的兼容性。3溝通和團(tuán)隊(duì)協(xié)作。4成本問題。2121電腦的創(chuàng)造力電腦的創(chuàng)造力創(chuàng)造力經(jīng)常被認(rèn)為是設(shè)計方面最重要的。但是，設(shè)計人員不可能與他們的工具完全獨(dú)立，并且CAD的使用與有關(guān)的產(chǎn)品有許多牽連。這項(xiàng)研究是著眼于在產(chǎn)品造型階段創(chuàng)造性地使用CAD工具，而不是看創(chuàng)造力。在這種情況下，創(chuàng)造力是連接設(shè)計人員為了制造出最有趣和最令人滿意的新產(chǎn)品所做的一系列工作。這些觀點(diǎn)使得設(shè)計人員能夠自由地利用這些特征，如顏色、表面光潔度、外形尺寸、產(chǎn)品圖形，來快速地生成表格、保持記錄等，而不用擔(dān)心丟失原始概念。