学科分类
/ 25
500 个结果
  • 简介:

  • 标签:
  • 简介:Object-oriented(OO)approachisthekeytechnologytodevelopasoftwaresystemintheLHC/ATLASexperiment.WedevelopedaOOsimulationframeworkbasedontheGeant4general-purposesimulationtoolkit.BecauseofcomplexityofsimulationinATLAS,wepayedmostattentiontothescalabilityinitsdesign.AlthoughthefirsttargettoapplythisframeworkistoimplementtheATLASfulldetectorsimulationprogram,thereisnoexperiment-specificcodeinit,thereforeitcanbeutilizedforthedevelopmentofanysimulationpackage,notonlyforHEPexperimentsbutalsoforvariousdifferentresearchdomains,Inthispaperwediscussourapproachofdesignandimplementationoftheframework.

  • 标签: 软件开发 关键技术 ATLAS模拟
  • 简介:BasedontheBeijingMunicipalGovern-ment'splansfordevelopingthecityandneighboringsuburbs,andaftermorethan10yearsindevelopment,theBeijingDe-velopmentZoneshavetakenshape,eachwiththeirowncharacteristics.Beijingnowhasthreestate-leveldevelopmentzones:ZhongguancunSciencePark,theBeijingEconomicandTechnologicalDe-

  • 标签:
  • 简介:Fromaneconomicpointofview,theindustrialecon-omyisefficienttoovercomesituationsofascarcityofgoods.Fromatechnologicalpointofview,theresourceefficiencyofthemanufacturingprocessesoftheindustrialeconomyhasbeenper-manentlyimprovedduringthelast200years.Inaddition,cleanerprocesseshavebeendeveloped.However,fromanecologicpointofview,anincreasingworldpopulationwithincreasingconsump-tionhasproduceda'globalfootprint'whichapproachesthecar-ryingcapacityoftheplanet.Acirculareconomyanditshigh-valuespin-offs-alakeeconomyandaperformanceorfunctionalserviceeconomy-canfulfilcustomers'needswithconsiderablylessresourceconsump-tion,lessenvironmentalimpairmentinproductionandconsidera-blylessend-of-lifeproductwaste,especiallyinsituationsofaf-fluence,whenaconsiderablestockofphysicalgoodsandinfra-structuresexists.Also,insituationsofascarcityofnaturalresources,bothen-ergyandmaterials,oftencharacterisedbyrapidlyrisingresourceprices,theeconomicactorsofacirculareconomyhaveahighcompetitiveadvantageovertheactorsoftheindustrialeconomy,duetomuchlowerprocurementcostsformaterialsandenergy.Fromasocialpointofview,acirculareconomyincreasesthenumberofskilledjobsinregionalenterprises.However,theshiftfromalinearmanufacturingeconomytoacircularorserviceeconomymeansachangeineconomicthinking,fromflow(throughput)managementtostock(asset)management:inamanufacturingeconomywithlargelyunsaturatedmarkets,totalwealthincreasesthroughaccumulationasresourcethrough-put(flow)istransformedintoahigherstockofgoodsofbetterquality(butinamanufacturingeconomywithlargelysaturatedmarkets,wealthrepresentedbythestockofgoodswillnolongerincrease);inacircularorserviceeconomy,totalwealthincreasesthroughasmartmanagementofexistingphysicalassets(stock)thatareadaptedtochangesinbothtechnology

  • 标签: 战略思想 可持续发展 循环经济 中国 绿色GDP
  • 简介:HighpopulationgrowthandcontinuedeconomicdevelopmenthavecausedseriousenvironmentaldamageintheAsiaPacificregion.However,therecentexperienceisthatthepaceofenvironmentaldegradationisfasterindevelopingcountriesthanindevelopedcountries.Tothisend,thestudyseekstoassesstheimpactofpopulationpressureonIndia’senvironment,withparticularreferencetothedegradationofnaturalendowmentslikelandandwaterresourcesandtheresultantenvironmentalpollutioninthesixregionsofIndia.Therapideconomicgrowthandexpansionofinfrastructuredevelopmentinrecentdecadeshavenotcomewithoutseriousenvironmentalconsequencesparticularlyinthesouthern,northern,andwesternregions.Butintheeastern,north-eastern,andcentralregionsofthecountry,environmentaldamagehasbeenmainlyduetorapidpopulationgrowth.

  • 标签: INDIA POPULATION POVERTY URBANIZATION DEVELOPMENT ENVIRONMENT
  • 简介:

  • 标签: