简介：Thefastturnoverofsoftwaretechnologies,inparticularinthedomainofinteractivity(coveringuserinterfaceandvisualisation)makesitdifficultforasmallgroupofpeopletoproducecompleteandpolishedsoftware-toolsbeforetheunderlyingtechnologiesmakethemobsolete.AttheHepVis'99workshop,aworkinggrouphasbeenformedtoimprovetherpoductionofsoftwaretoolsfordataanalysisinHENP.Besidepromotingadistributeddevelopmentorganisation,onegoalofthegroupistosystematicallydesignasetofabstractinterfacesbasedonusingmodernOOanalysisandOOdesigntechniques.Aninitialdomainanalysishascomeupwithseveralcategories(componets)foundintypicaldataanalysistools:historams,Ntuples,Functions,Vectors,Fitter,Plotter,AnalyzerandController,SpecialEmphasiswasputonreducingthecouplingsbetweenthecategoriestoaminimum,thusoptimisingre-useandmaintainabilityofanycomponentindividually.TheinterfaceshavebeendefinedinJavaandC++andimplementationsexistintheformoflibrariesandtoolsusingC++(Anaphe/Lizard,Openscientist)andJava(JavaAnalysisStudio),AspecialimplementationaimsataccessingtheJavaLiraries(throughtheirAbstractInterfaces)fromC++.ThispapergiveranoverviewofthearchitectureanddesignofthevariouscomponentsfordataanalysisasdiscussedinAIDA.

简介：Thisstudyrepresentstheinfluenceonexhaustperformancebyactivemufflervalvespring.Themainexperimentalparameterswereenginespeedsandtorsioncoilspringconstantsintheactivemuffler.Whenthemufflervalvespringhasalowspringconstantofk=0.75,thesoundpressurelevelwaslowattheregionofenginespeed2000to2500r/min,andthevelocityofexhaustgaswashighatspringconstantk=0.75.Whentheenginespeedwasunder1500r/min,themeanconcentrationofCOwashighincasewithoutmufflervalve.Whentheenginespeedintherangeof1600to2600r/minwithspringconstantk=0.75,themeanHCconcentrationshowedthelowestvalue.Withoutmufflervalve,thetemperatureinthemufflerwashigherthanthecasewithmufflervalve.Thisresearchrepresentedthattheperformanceoftheactivemufflervalvespringconstantk=0.75washigherthanthatwithoutmufflervalveandvalvespringconstantk=0.70.Amongthethreecasesofexperimentalcondition,withaspringcon

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简介：在这份报纸，我们根据他们用直接集成技术杀死向量领域的teleparallel分类空间地同类的旋转时空。结果杀死向量地的teleparallel的尺寸是5或10。在杀死向量领域的10teleparallel的情况中，时空成为Minkowski，所有扭转部件是零。在这种情况中杀死向量地的Teleparallel作为在一般相关性一模一样。在杀死向量地的5teleparallel的情况中，我们在引力的teleparallel理论得到二条更多的能量守恒定律。这里，我们也根据他们杀死向量地的teleparallel讨论空间地同类的旋转时空的一些著名例子。

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