简介：近几年来,Skyline查询处理在许多应用领域具有潜在的实用价值。在Map-Reduce框架下采用基于角度数据划分的方法,本文提出Cirl-Skyline查询算法。进一步提高算法的查询效率,为了更好的解决重复计算局部没有发生变化Skyline查询点的问题,在Cirl-Skyline算法的基础上提出Restrict-Skyline算法。理论分析和实验证实,该算法具有高效性和可扩展性。

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简介：和Adnan一起坐上飞毯，按照下文指明的方向前进，找出地图中隐藏的宝物。

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简介：TheCommissionfortheGeologicalMapoftheWorld(CGMW),anIUGSaffiliatedbody,hasjustissuedthefirsteditionoftheStructuralMapoftheIndianOceanwhichwaspresentedduringthe32ndIGC(Florence).Duringthe1980's,theCommissionpublishedtheGeologicalAtlasoftheWorld,whichincludedthemapsofthe5oceansoftheglobe.Twodecadeshaveelapsedandtheknowledgeofthesea-floorexperiencedverysignificantprogress;thereforesome5yearsago,theCommissiondecidedtolaunchanewtypeofoceanmapping.TheStructuralMapoftheIndianOceanisthefirstofthisnewseriesofmaps.

简介：ThispaperaimstopresentanexperimentdevelopedinatechnologydegreecollegeinS?oPaulo:thefreshmenintegrationandremedialclassesweek.Thisworkwasdevelopedduetothedropoutratethatoccurredinseveralcourses.The50%dropoutratewascollectedthroughasampleofthefirstsemesterfrom2012to2014.Thiscollegehascoursesinweldingtechnology,mechanicalmanufacturing,industrialautomationandrefrigeration,airconditioning,andventilationandheating.Itisapubliccollege.Astheyarecoursesoftheareaofmechanicalengineering,theirfirstsemestersconsistofcalculus,physics,chemistry,statistics,andotherdisciplinesthatrequiresolidknowledgebackgroundfromseniorhighschool.Thisisnottherealityfortheprofileofincomingstudents.Ninety-fivepercentofthestudentscomefrompublicschools.Remedialclassesweekiscomprisedofremedialclassesonmathematics,motivationallectures,presentationoftheacademic,andjobmarketarea,aswellasintegrationwithveteranstudents,teachers,andcoordinators.Thisworkbeganin2014andtherewas35%evasionreduction.

简介：Chinahaspublishedastricteremissionstandardforthermalpowerplantsinordertohelpreducethepowerindustry'ssulfurdioxideemissionsbyoversixmillio

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简介：ThemainpurposetodevelopaMapGraphicWorkstationonthewidelyusedmicro-computeristhatbyitthewholeprocessingofmapdatafromcapturing,managing,editing,updatingtographicoutputtingcanberealized.MapDigitizationSystem（MDS）isthesoftwaresystemtodealwiththeinitialandalsothemostimportantprocessing.Inthispaper,theauthorsintroduceaMDSonamicro-computerbasedMapGrphicWorkstationthathasbeenqualitifiedfortheproducationofdigitalmap.SincethesystemisdesignedtotallyindependentlyandinthegeneralframeoftheMapGraphicWorkstation,thecapturingandman-agingandotherprocessingsformapdataareinanintegralmanner,inwhichtheproducationofdigitalmapcanbefulfilledconveniently.Atthesametime,thesystemisflexibleforfunctionextensionandwidelyapplicabletothedatafromdif-ferentsourcesandwithdifferentinformationcharacterisitcs(e.g.,theprocessingofChinesecharactersonmap).

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简介：Anesthesiaisanimportantpartofmedicine:theabilitytopreventpainand/orunwantedmovementduringsurgeryiscriticaltomakingtherequiredincisionsandinjectionsortoemployotherpotentiallypainfulprocedureswithoutcausingthepatientunduedistress.Patientswithchronicpain,especiallythosewithneuralgia(amalfunctioningnervethatconstantlysignalspain),alsorelyon

简介：罗丹和苏利文(1987)证明Thurston是推测那基于收拾行李的圆，定理集成到印射的Riemann的一个计划，从而证明了更新是印射定理的Riemann的几何看法。自然地，我们考虑使用椭圆包装围住的简单地连接的领域并且同样获得在收拾行李的椭圆和收拾行李的圆之间的顺序simplicial同胚。在这份报纸，我们证明这些simplicial同胚接近与他们当时，在领域几乎到处趋于到1的复杂膨胀的模量从围住的简单地连接的领域印射到联合起来的磁盘上的quasiconformal更长的轴和趋于到鈭的椭圆的更短的轴的比率吗？

简介：MAP(一种先抽真空后充隋性气体的包装，直译为改性气体包装)能延长食品货架寿命已为世人认可多年。100多年前，就已有一件经授权的专利涉及到使用CO2／CO混合气来延长肉的货架寿命。MAP的第一种主要商业用途是1974年之后由法国的SCOPA公司开始销售MAP肉。

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