简介：帕特里克·雷诺兹报道：许多大型水电工程正在用AtlasCopco公司的设备进行隧洞施工，掘进工作进展顺利。此外．其他一些工程项目的隧洞开挖施工也开始采用该公司的设备。

简介：雪佛龙公司和Atlas能源公司宣布，雪佛龙将以32亿美元收购Atlas能源公司，并承担大约11亿美元的预计净债务。此项收购将为雪佛龙提供有吸引力的天然气资源，该资源主要位于美国宾夕法尼亚州西南部的Marcellus页岩区。此项收购将受制于Atlas能源公司的特定重组交易，以及该公司股东和监管机构的批准。

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简介：In1997themineralresourcesofEuropeandneighbouringcountrieswerepresentedasaprintedmapandabookofexhaustiveinformationandreferences.ThiswasthefirstpublishedmapinventoryofmineraldepositsfromallpartsoftheformerlypoliticallydividedEurope(EastandWest),measuredandevaluatedaccordingtoidenticalgeologicalandminingstandards.

简介：美国：AtlasHoldings已经获得了惠好公司商业用工程木业务。该部门包括4家生产工厂和13家设计和销售部门，并将会被重新命名为RedBuilt，其总部迁回至爱达荷州博伊西市。产品包括：工字梁、LVL、空腹搁栅、混凝土模板，以及脚手架支架。

简介：TheconfigurationdatabasesareanimportantpartoftheTrigger/DAQsystemofthefutureATLASexperiment.Thispaperdescribestheircurrentstatusgivingdetailsofarchitecture,implementation,testresultsandplansforfuturework.

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

简介：ThispaperoutlinesthedesgnandprototypingoftheATLASHighLevelTrigger(HLT)wihchisacombinedeffortoftheDataCollectionHLTandPESA(PhysicsandEventSelectionArchitecture)subgroupswithintheATLASTDAQcollaboration.Twoimportantissues,alresdyoutlinedintheATLASHLT,DAQandDCSTechnicalProposal[1]willbehighlighted:thetreatmentoftheLVL2TriggerandEventFilterasaspectsofageneralHLTwithaviewtoeasiermigrationofalgorthmsbetweenthetwolevels;unificationoftheselectivedatacollectionforLVL2andEventBuilding.

简介：TheATLASdetectorisoneofthemostsophisticatedandhugedetectorseverdesigneduptonow.Adetailed,flexibleandcompletesimulationprogramisneededinordertostudythecharacteristicsandpossibleproblemsofsuchachallengingapparatusandtoanswertoallraisingquestionsintermsofphysics,designoptimization,etc.TocopewiththeseneedsweareimplementinganapplicationbasedonthesimulationframeworkFADS/Goofy(FrameworkforATLASDetectorSimulation/Geant4-basedObject-OrientedFolly)intheGeant4environment.Theuser'sspecificcodeimplementationispresentedindetalilsforthedifferentapplicationsimplementeduntilnow,fromthevariouscomponentsoftheATLASspectrometertopsomeparticulartestbeamfacilities,particularemphasisisputindescribingthesimulationoftheMuonSpectrometeranditssubsystemsasatestcasefortheimplementationofthewholedetectorsimulationprogram:theintrinsiccomplexityinthegeometrydescriptionoftheMuonSystemisoneofthemoredemandingproblemsthatarefaced.Themagneticfieldhandling,thephysicsimpactintheeventprocessinginpresenceofbackgroundsfromdifferentsourcesandtheimplementationofdifferentpossiblegenerators(includingPythia)arealsodiscussed.

简介：WithintheATLASexperimentTrigger/DAQandDCSarebothlogicallyandphysicallyseparated.Neverthelessthereisaneedtocommunicate.TheinitialproblemdefinitionandanalysissuggestedthreesubsystemstheTrigger/DAQDCSCommunication(DDC)projectshouldsupporttheabilityto:1.exchangedatabetweenTrigger/DAQandDCS;2.sendalarmmessagesfromDCStoTrigger/DAQ;3.issuecommandstoDCSfromTrigger/DAQ.Eachsubsystemisdevelopedandimplementedindependentlyusingacommonsoftwareinfrastructure.AmongthevarioussubsystemsoftheATLASTrigger/DAQtheOnlineisresponsibleforthecontrolandconfiguration.Itistheglueconnectingthedifferentsystemssuchasdataflow.level1andhigh-leveltriggers.TheDDCusesthevariousOnlinecomponentsasaninterfacepointontheTrigger/DAQsidewiththePVSSIISCADAsystemontheDCSsideandaddressesissuessuchaspartitioning,timestamps,eventnumbers,hierarchy,authorizationandsecurity,PVSSIIisacommercialproductchosenbyCERNtobetheSCADAsystemforallLHCexperiments,ItsAPIprovidesfullaccesstoitsdatabase,whichissufficienttoimplementthe3subsystemsoftheDDCsoftware,TheDDCprojectadoptedtheOnlineSoftwareProcess,whichrecommendsabasicsoftwarelife-cycle:problemstatement,analysis,design,implementationandtesting.Eachphaseresultsinacorrespondingdocumentorinthecaseoftheimplementationandtesting,apieceofcode,InspectionandreviewtakeamajorroleintheOnlinesoftwareprocess,TheDDCdocumentshavebeeninspectedtodetectflawsandresultedinaimprovedquality.AfirstprototypeoftheDDCisreadyandforeseentobeusedatthetest-beamduringsummer2001.

简介：ATLAS[1]hasrecentlyjoinedGaudi,anopenprojecttodevelopadataprocessingframeworkforHEPexperiments[2],ThedatamodelisoneoftheareaswhereATLAShasextendedmoretheoriginalGaudidesigntomeettheexperiment'sownrequirments.ThispaperdescribesStoreGate,thefirstimplementationoftheATLASDataModel.

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简介：AthenaisthecommonframeworkusedbytheATLASexperimentforsimulation,reconstruction,andanalysis,Bydesign,Athenasupportsmultiplepersistenceservices,andinsulatesusersfromtechnology-specificpersistencedetails.AthenausersandevenmostAthenapackagedevelopersshouldneitherknownorcarewhetherdatacomefromthegridorfromlocalfilesystems.norwhetherdataresideinobjectdatabases,inROOTorZEBRAfiles,orinASCIIfiles.InthispaperwedescribehowAthenaapplicationsmaytransparentlytakeadvantageofemergingservicesprovidedbygridsoftwaretoday-howdatageneratedbyAtheajobsareregisteredingridreplicacatalogsandothercollectionmanagementservices,andthemeansbywhichinputdataareidentifiedandlocatedinagrid-awarecollectionmanagementenvironment.Weoutlineanevolutionarypathtowardincorporationofgrid-basedvirtualdataservices,wherebylocatingdatamaybereplacedbylocatingarecipeaccordingtowhichthatdtamaybegenerated.Severalimplementationscenarios,rangingfromlowlevelgridcatalogservices(e.g.,fromGlobus)throughhigher-levelservicessuchastheGridDataManagementPilot(underdevelopmentaspartoftheEuropeanDataGridporject,incollaboration,withtheParticlePhysicsDataGrid)tomoreconventionaldatabaseservices,andacommonarchitecturetosupportthesevariousscenarios,arealsodescribed.

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简介：Oneofthesub-systemsoftheTrigger/DAQsystemofthefutureATLASexperimentistheOnlineSoftwaresystem.Itencompassesthefunctionalityneededtoconfigure,controlandmonitortheDAQ.ItsarchitectureisbasedonacomponentstructuredescribedintheATLASTrigger/DAQtechnicalproposal.ResularintegrationtestsensureitssmoothoperationintestbeamsetupsduringitsevolutionarydevelopmenttowardsthefinalATLASonlinesystem.Feedbackisreceivedandreturnedintothedevelopmentprocess.Studiesofthesystem.behaviorhavebeenperformedonasetofupto111PCsonaconfigurationwhichisgettingclosertothefinalsize,Largescaleandperformancetestsoftheintegratedsystemwereperformedonthissetupwithemphasisoninvestigatingtheaspectsoftheinter-dependenceofthecomponentsandtheperformanceofthecommunicationsoftware.Ofparticularinterestweretheruncontrolstatetransitionsinvariousconfigurationsoftheruncontrolhierarchy.Forthepurposeofthetests,thesoftwarefromotherTrigger/DAQsub-systemshasbeenemulated.Thispaperpresentsabriefoverviewoftheonlinesystemstructure,itscomponentsandthelargescaleintegrationtestsandtheirresults.

简介：ThereconstructionandsubsequentparticleidentificationisachallengeinacomplexandahighluminosityenvironmentsuchasthoseexpectedintheATLASdetectorattheLHC.TheATLASsoftwarehaschosentheobjectorientedparadigmandhasrecentlymigratedmuchofitssoftwarecomponentsdevelopedearlierusingproceduralprogramminglanguages.Thenewsoftware,whichemphasizesontheseparationbetweenalgorthmsanddataobjects,hasbeensuccessfullyintegratedinthebroaderATLASframework.Wewillpresentastatusreportofthereconstructionsoftwaresummarizingtheexperiencesgainedinthemigrationofseveralsoftwarecomponents.Wewillexaminesomeofthecomponentsofthecalorimetersoftwaredesign,whichincludesimulationofreal-timedetectoreffectsandonlineenvironment,andstrategiesdeployedforidentificationofparticles.

简介：微软现在已经进入了ASP．NET2．0和VisualWebDeveloper2005发布版最后的RTM里程碑时刻。为了达到ZBB（ZeroBugnounce），微软已经锁定了这些产品的特性，着重优化最终的质量、性能和可靠性。

简介：Withhypermediatechnologythestructureofapublicationcanbere-arrangedtoaccommodatemoreeasycognitionoftheideaandconceptbylinkingtheconceptswhicharerepresentedbydifferentmediaformsintoanintegratedconcept.Essentially,multimediaelectronicatlasisakindofelectronicpublication,whichhasmanycommoncharacterswithordinaryCD-ROMpublications.Forthedeeperexplorationofelectronicatlasitisveryimportanttounderstandtheinternalandgeneralstructureofthenewmediastructure.Theaimofthispaperistodiscusstheinternalstructureofmultimediaelectronicatlasasawholebyapplyingthemethodologyoflinguistics.