简介:Aheterochromatictreeisanedge-coloredtreeinwhichanytwoedgeshavedifferentcolors.Theheterochromatictreepartitionnumberofanr-edge-coloredgraphG,denotedbytr(G),istheminimumpositiveintegerpsuchthatwhenevertheedgesofthegraphGarecoloredwithrcolors,theverticesofGcanbecoveredbyatmostpvertex-disjointheterochromatictrees.Inthispaperwedeterminetheheterochromatictreepartitionnumberofr-edge-coloredcompletegraphs.Wealsofindatmosttr(Kn)vertex-disjointheterochromatictreestocoveralltheverticesinpolynomialtimeforagivenr-edge-coloringofKn.
简介:Hardwareandsoftwareco-designisadesigntechniquewhichdeliverscomputersystemscomprisinghardwareandsoftwarecomponents.Acriticalphaseoftheco-designprocessistodecomposeaprogramintohardwareandsoftware.Thispaperproposesanalgebraicpartitioningalgorithmwhosecorrectnessisverifiedinprogramalgebra.Theauthorsintroduceaprogramanalysisphasebeforeprogrampartitioninganddevelopacollectionofsyntax-basedsplittingrules.Theformerprovidestheinformationformovingoperationsfromsoftwaretohardwareandreducingtheinteractionbetweencomponents,andthelattersupportsacompositionalapproachtoprogrampartitioning.
简介:K2NbOF5·H2OandK2TaF7werepreparedthroughmeltingNb2O5andTa2O5respectivelywithFHF2·2H2O,followedbyrecrystallizing.ThehydrolysispropertiesofK2NbOF5andK2TaF7weredeterminedagainbyusingarapidlyquenchvessel.Astemperature(from250to550℃)andpressure(from500to1500bars)increase,thedegreeofhydrolysisofbothK2NbOF5andK2TaF7willincrease.Nb-andTa-fluorinecomplexcompoundsareinstableinsupercriticalaqueousfluids.ThedegreeofhydrolysisofbothK2NbOF5andK2TaF7decreaseswithincreasingconcentra-tionofHF,independentoftheconcentrationofNaF.ThepartitioncoefficientsofNbandTabetweengraniticmeltandfluidphasearelessthan0.15,ie.,mostofNbandTaareleftingraniticmelt.ThepartitioncoefficientofTaismoredependentontheconcentrationofHFthanthatofNb.ThesignificanceofhydrolysisinNb-ansTamineralizationisalsodiscussedinthepresentpaper.
简介:象建议,当模特儿的话题,和医药诊断一样的许多机器学习和数据采矿(MLDM)问题能在由两部组成的图上作为计算被建模。然而,很分布式的图平行系统对在这的唯一的特征忘却图和存在的联机图划分算法通常在网络通讯上象重要压力一样引起顶点的过多的复制。这篇文章识别为分布式的MLDM处理划分由两部组成的图的挑战和机会并且建议BiGraph,划分算法的一套由两部组成面向的图。BiGraph力量观察象数据在导出一套最佳的图的顶点的二个子集之间缩放划分导致最小的顶点复制和网络通讯的算法的顶点,区别计算负担和imbalanced的扭曲的分发那样。BiGraph在PowerGraph上被实现了并且被显示有表演增加直到17.75X(从1.16X)为四个典型MLDM算法,由于减少直到80%顶点复制,并且直到96%网络交通。
简介:这篇论文基于骨骼划分为道路密度分析建议一个算法。道路密度在宏水平关于全面道路分发提供公制、统计的信息。道路密度的存在大小基于格子方法,分数维的几何学和网孔密度被考察,并且为基于骨骼划分计算道路密度的一个新方法被建议。实验基于骨骼划分说明那道路密度可以揭示全面道路分发。建议测量进一步在1:50k规模在1:10k规模和他们的概括版本对道路地图被测试。由在不同密度间隔以内比较删除百分比,道路密度阀值能被发现,它在归纳期间为进一步的操作显示需要。建议道路密度可以被用来检验道路归纳的质量,到探索道路网络的变化通过时间、空间变化,并且它也在城市的计划,交通和房地产评估实践有未来用法。
简介:Sinceithasexcellenttensilestrength,thequenchingandpartitioning(Q&P)treatedsteelhasbeenwidelyacclaimed.SomeresearchediscurrentlybeingconductedonQ&Psteel,butQ&Ptechniquesandrelatedmechanismshavebeenmostlyresearchbasedonconventionaltransformation-inducedplasticity(TRIP)steel.ThisstudyresearchestheeffectofMnonthepropertiesofQ&Psheetsteel.TwokindsofsteelsheetwithdifferentlevelsofMncontent(1.46%Mnand2.75%Mn)areinvestigated.Afterbeingfullyannealed,thesteelsheetswerequenchedtoatemperaturebetweenMsandMf.Allocationtreatmentthencausedthecarbontobepartitionedintotheremainingaustenite.Themicrostructureandtensilepropertieswereanalyzed.TheresultsshowthattheincrementofMncontentcanincreasethestabilityofthesteelanddecreasethesensitivityofthequenchingtemperature(QT).TheresultsalsoindicatethatincreasingthelevelofMncaneffectivelysuppresstheformationofbainite.
简介:TheJointControlsProject(JCOP)isacollaborationbetweenCERNandthefourLHCexperimentstofindandimplementcommonsolutionsfortheircontrolandmonitoringsystems.AspartofthisprojectandArchitectureWorkingGroupwassetupinordertostudytherequirementsanddeviseanarchitecturalmodelthatwouldsuitthefourexperiments.Manyissueswerestudiedbythisworkinggroup:Alarmhandling,AccessControl,HierarchicalControl,etc.Thispaperwillreportonthespecificissueofhierarchicalcontrolandinparticularpartitioning,automationanderrorrecovery.
简介:TheDantzig/Wolfelinearprogrammingdecompositionalgorithmhashadimportanteconomicinterpretationsaswellasawidespreadimpactonsolvinglargescalelinearprogrammingproblem.Inthispaperweconsiderasimilarunderlyingstructure,wherehoweverthereisonlyonecouplinginequalityorequation.Withthissimplification,wedemonstratehowtoachieveanequitablepartitionoftheoverallcouplingresourcetoindividualsubproblemconstraintsthroughasimpleiterationprocedurewhichappearstobeveryefficient.
简介:Threeextractionmethods,ultrasonicassistedextraction(USE),microwaveassistedextraction(MSE),andconventionalsingleextraction(CSE),inconjunctionwiththemodifiedthree-stageBCRsequentialextractionprocedure(SEP)wereappliedtoexaminethecontentsofCd,Cu,Cr,Ni,PbandZnfromlakesedimentsamples,toknowwhetherthesetechniquescanreduceextractiontimeandimprovereproducibility.TheSEPanddevelopedalternativesingleextrac-tionmethodswerevalidatedbytheanalysisofcertifiedreferencematerialBCR601.Bytheuseofoptimizedsonicationandmicrowaveconditions,steps1,2and3oftheBCRsequentialextractionmethods(excludingthehydrogenperoxidedigestioninstep3,whichwasnotperformedwithsonicationandmicrowave)couldbecompletedin15-30minand60-150s,respectively.TherecoveriesoftotalextractablemetalcontentsinBCR601,obtainedbythreesingleextractionsrangedfrom93.3%-102%,88.9%-104%and81.2%-96.2%forCSE,USEandMSE,respectively.Theprecisionofthesingleextractionmethodswasfoundintherangeof3.7%-9.4%forallmetals(n=6).
简介:ThreelogarithmiclinearequationsbetweenDMeV/Land[mNaCl],andtherelationshipofDMeV/LversusF/ClorK/NamoleratioshavebeenestablishedbytheexperimentsofthepartitioningofPbandZnbetweengraniticsilicatemeltandaqueousfluid.Theseresultshavebeenusedtoquantitativelystudysomeessentialproblems,suchasthepossibilityanddegreeofPb-Znmineralizationinthesystemofgraniticmagmaandhydrothermalfluid,andtheinfluenceoftherelativecontentsofalkaliandvolatilesonthePb-Znmineralizationinthesamesystem.Somenewpointshavebeenputforwardinthispaper.
简介:Thisstudyaimstoinvestigatetheeffectofthe1-stepquenchingandpartitioning(Q&P)processonthemicrostructureandtheresultingVicker’shardnessof0.3C-1.5Si-1.5Mnsteelbyusingin-situdilatometry,opticalmicroscopy(OM),scanningelectronmicroscopy(SEM),X-raydiffractometry(XRD),andVicker’shardnessmeasurement.Systematicanalysesindicatethatthemicrostructureofthespecimensquenchedandpartitionedat150℃,200℃,250℃,and300℃mainlycompriseslathmartensiteandretainedaustenite.Thedilatometrycurveofthespecimenpartitionedat150℃ispresumablyascribedtotheformationofisothermalmartensite.Intheearlystagesofpartitioningat200℃,thenearlyunchangeddilatationcurveiscloselyrelatedtothesynergisticeffectofisothermalmartensiteformationandtransitionalepsiloncarbideprecipitation.Inthelaterstagesofpartitioningat200℃,theslightincreaseinthedilatationcurveisduetothecontinuousisothermalmartensiteformation.Withfurtherincreaseinpartitioningtemperatureto250℃,thedilatationincreasesgraduallyupto3600s,whichisrelatedtocarbonpartitioningandlowerbainiteformation.Partitioningatahighertemperatureof300℃causesarapidincreaseinthedilatationcurveduringtheinitialstages,whichsubsequentlylevelsoffuponprolongingthepartitioningtime.Thisismainlyattributedtotherapiddiffusionofcarbonfromathermalmartensitetoretainedausteniteandcontinuousformationoflowerbainite.
简介:Metalpollutioninaquaticecosystemsisofimmenseimportance.Undervariousenvironmentcircumstances,themetalcontentsofsedimentscanenterintotheoverlyingwaterbodyleadingtoseveretoxicity.ThisstudyaimstodeterminemetalconcentrationsinsedimentsofAnzaliInternationalWetlandinIran.Chemicalpartitioningmethodisusedtodeterminetheportionofanthropogenicpollutionandthemobilitypotentialofeachmetal.Theintensityofmetalpollutioninsedimentsofthewetlandisassessedusingthreereliableindices.TheresultsofchemicalpartitioningrevealthatcadmiumbearthehighestriskofbeingreleasedintotheaquaticenvironmentandhighamountofmanganeseinsulfidebondphaseimpliestheinitiationofredoxstateinaquaticenvironmentoftheAnzaliWetland.TheresultsofchemicalpartitioningstudiesshowthatPb,Cd,MnandAshavethehighestanthropogenicportion.Clusteranalysisalsoconfirmstheresultsofchemicalpartitioningandindicatesthatthementionedmetalscanbeoriginatedfromanthropogenicsources.Sedimentpollutionindices,including,I_geo,I_POLL,andm-ERM-Qrevealthatmetalsareintherangeoflowtomoderatepollutionandalsoshowthatthehighestmetalpollutionisintheeasternandcentralpartsofthewetland.Thiscanbeascribedtoriverswhicharetherecipientofindustrial,agriculturalandmunicipalwastewatersandflowintothesepartsofthewetland.
简介:Fe-0.2C-l.5Si-l.67Mn钢受到熄灭并且划分(Q&P)进程,和在在提高的划分温度的马氏体和奥氏体之间的接口移植被观察。接口迁居在constrainedparaequilibrium(用户终端设备)被排除模型。基于“端点”由用户终端设备模型预言接口移植的热力学的条件被分析,也就是说,在在铁酸盐(martenisite)和奥氏体的铁的化学势的差别生产铁原子的驱动力从一个阶段移居到另外的阶段。另外,接口迁居罐头改变奥氏体部分;作为结果,在划分温度的奥氏体部分可能在通过接口移植熄灭温度比那高,但是这现象不能被用户终端设备模型解释。
简介:Femtocell是一种有希望的技术与低力量、费用有益的小基础车站改进网络性能。然而,在femtocell网络的干扰有限现实使干扰和资源管理成为钥匙到完成femtocell网络的好处。在这份报纸,下列贡献一步一步地被做:首先,根据在技术和第三产生合伙的网络建筑学投射的认知无线电(CR)(3GPP)的干扰温度模型(ITM),长期的进化进展了(LTE--一),优化再使用femtocell的子通道的能力的问题模型在划分策略的频率下面被建立,联合考虑平均干扰限制和即时干扰限制。第二,利用凸的理论,再使用femtocell的子通道的最佳的力量分配被导出。第三在使隧道褪色的瑞利下面,子通道的靠近形式的表情可重用的概率和能力被导出。最后,数字结果被进行到证实我们的分析结果,它能为femtocell网络推广的频率资源分配提供理论指导。
简介:在Qinghai西藏的高原附近散布的活跃差错的kinematics的定量分析是批评的理解高原的当前的构造过程。按年代先后的分析基于在地区性的气候和地形学之中的比较,数字摄影测量学,偏移量地形,和tectonics在东方西藏的高原在Xianshuihe差错上在这研究被采用。二或更多的偏移量年龄数据为Xianshuihe和Yunongxi差错的每个片断被获得。包括河梯田,冲积扇子和冰川的冰碛,偏移量地形提供限制为晚第四级滑动Xianshuihe差错的率。左侧面的罢工在东南片断上在西北片断上从17mm/a滑动Xianshuihe差错减少的率到9.3mm/a。认为Xianshuihe差错地区和它的邻近的块是一个地区性的构造系统,向量分析习惯于份量上分析纵的kinematical转变并且横过滑倒在地区以内以主要差错的kinematical参数在差错地区上划分。有的结果表演一分布式垂直以越过Gongga山区域弄短引起的6.1公里/年的率高举。把结果基于这些,我们建立了为Xianshuihe差错地区的东南的片断划分的slip的一个模型。