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69 个结果
  • 简介:Inthispaper,theauthorsintroduceakindofreduciblealgebroidfunctions,thatisgeneralalgebroidfunctionsandobtaintwofundamentaltheoremsofgeneralalgebroidfunctions.Atlast,asanapplication,wegeneralizedatheoremofLiGuoping’s.

  • 标签: 代数体函数 应用 定理 可约
  • 简介:第一原则的计算被执行学习有TiC的形态学的硼和它的关系的吸附。尽管所有低索引的TiC水晶飞机上的硼的吸附是热地有利的,它将更容易被吸附由,这被发现终止C{111}并且{011}飞机,当时不太可能被吸附由{001}。B-B簇的形成的学习显示硼adatoms在上的分发终止C(111)并且{011}飞机将是更一致的,并且adatom的散开进一步证实上述结果。根据几何学关系和不同水晶飞机的生长率,TiC上的硼的吸附将严重阻碍生长,这被推出{111}并且{011}飞机,它能让TiC长成六角形的血小板。

  • 标签: TIC 吸附 表面和接口 第一原则的计算
  • 简介:当一个非免疫学的机关首先从事了新陈代谢的、滋养的存储和detoxification活动,人的肝通常被察觉。然而,我们现在知道健康的肝也是复杂免疫学的一个地点活动象非造血的房间人口一样由一个多样的有免疫力的房间全部剧目调停了。在疾病得非的肝,新陈代谢并且织物改变功能要求发炎的元素。在有到饮食、微生物引起的产品的常规暴露的联合,这发炎为过多的有免疫力的激活创造潜力。在这复杂微型环境,肝的免疫系统容忍无害的分子当同时对可能的传染代理人仍然保持警惕时,恶意的房间或纸巾损坏。在到由病原体或织物损坏的挑战的适当有免疫力的激活之上,解决发炎的机制是必要的维持肝动态平衡。清除‘的失败;dangerous’;刺激或调整适当地激活的有免疫力的机制导致病理学的发炎和纤维变性,肝硬化和最终的肝失败的进步发展描绘的破坏织物动态平衡。肝的煽动性的机制因此在健康的成年的肝有角色的一个系列;他们是必要的维持织物和机关动态平衡并且dysregulated,肝病理的关键司机与长期的感染,autoimmunity和恶意被联系。在这评论,我们在正常的肝动态平衡探索发炎和煽动性的调停人的变化感觉并且求婚作为一条治疗学的途径肝特定的有免疫力的规定小径指向治疗肝疾病。

  • 标签: 肝脏疾病 炎症介质 免疫学 稳态 自身免疫性疾病 组织损伤
  • 简介:EnglishditransitiveconstructionisasignificantcomponentofGoldberg’sconstructiongrammarwhichisbasedoncognitivelinguistics.ItaimstoenlightenteachersandlearnersofSLA.ItpresentsbackgroundsandthebasicconceptsofGoldberg’sconstructiongrammar,depictswhatEnglishditransitiveconstructionisanditssemanticconstraints,andreferstoenlightmentsofEnglishditransitiveconstructiononSLAfromfourperspectives.

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  • 简介:Theequilibriumfittingcode(EFIT)anditsapplicationintheJ-TEXTtokamakareintegratedbytheMatlablanguage.Thefunctionofanalysisandvisualizationtotheresultsisadded.Inaddition,theexperimentdatameasuredbysoftX-ray(SXR)areusedtocalculateplasmaequilibriumasaconstraintcondition.TheimprovedEFITcodeisusedforJ-TEXTdischargeandtheprofilesofplasmaparameterssuchasfluxfunction,safetyfactorq,pressureandcurrentdensityareobtainedfromthereconstructedconfigurations.

  • 标签: 平衡重 TEXT MATLAB语言 整合 托卡马克装置 等离子体参数
  • 简介:Regimeswitching,whichisdescribedbyaMarkovchain,isintroducedinaMarkovcopulamodel.Weprovethatthemarginals(X,H~i),i=1,2,3oftheMarkovcopulamodel(X,H)arestillMarkovprocessesandhavemartingaleproperty.Inthisproposedmodel,apricingformulaofcreditdefaultswap(CDS)withbilateralcounterpartyriskisderived.更多还原

  • 标签: COPULA 马尔科夫 模型 应用 政权 马尔可夫过程
  • 简介:AsystematicexaminationofRamessesⅡ'slargefamilyofover100childrenandatleastadozenwivesrevealsthattheGreatRoyalWivesNefertariandIsetnofret,alongwiththeirchildren,enjoyedaprivilegedstatuswithinthehierarchicalstructureoftheroyalfamily.NefertariowedhersupremestatustobeingmotherofRamessseⅡ'sfirstbornsonAmunhirkhopeshef,whileRamessesⅡwasstillcrownprinceunderSetyI.Isetnofret'ssonsanddaughterswerealsofavoredbecauseshegavebirthtothesecondbornsonPrinceRamessesJr.IsetnofretherselfdidnotenjoyprominenceonthemonumentsuntilafterthedeathofNefertari,norwassheburiedintheValleyoftheQueens.Theremainingoffspringofthesewivesalsobenefitedfromtheprestigeoftheirmothersandeldestbrothers.OtherearlywivesgavebirthtothemajorityofRamessesⅡ'schildren,butthesewomenarenowcompletelyanonymous.Otherattestedwivesofthekingincludehisfivedaughter-wivesandtwoHittitePrincess-brides.NootherEgyptianwivesareknownforRamessesⅡ.MonumentalsourcesthatprivilegeQueenNefertari,andthechildrenofbothNefertariandIsetnofret,revealahierarchicalstructureoftheroyalfamily.

  • 标签: 层次结构 FISHER 法老王 埃及 儿子 大惯性
  • 简介:Compressivesensing(CS)hasemergedasanovelsamplingframeworkwhichenablessparsesignalacquisitionandreconstructionwithfewermeasurementsbelowtheNyquistrate.AnimportantissueforCSistheconstructionofmeasurementmatrixorsensingmatrix.Anewdeterministicsensingmatrix,namedasOOC-B,isproposedbyexploitingopticalorthogonalcodes(OOCs),BernoullimatrixandSingerstructure,whichhastheentriesof0,+1and-1beforenormalization.Wehaveproventhatthedesigneddeterministicmatrixisasymptoticallyoptimal.Inaddition,theproposeddeterministicsensingmatrixisappliedtodirectionofarrival(DOA)estimationofnarrowbandsignalsbyCSarrays(CSA)processingandCSrecovery.TheoreticalanalysisandsimulationresultsshowthattheproposedsensingmatrixhasgoodperformanceforDOAestimation.ItisveryeffectiveforsimplifyinghardwarestructureanddecreasingcomputationalcomplexityinDOAestimationbyCSAprocessing.Besides,lowerrootmeansquareerror(RMSE)andbiasareobtainedinDOAestimationbyCSrecovery.

  • 标签: DOA估计算法 测量矩阵 波达方向(DOA)估计 应用 窄带信号 硬件结构
  • 简介:Theecologicalcivilizationhealthquotientindexisputforwardcombinedwiththe"healthquotient"concepttoevaluatethehealthstateofecologicalcivilization.Thispaperhasconstructedtheindexsystemofecologicalcivilizationhealthquotientandquantitativelygoteachindexproportionofthesystemwithapplicationofanalytichierarchyprocess(AHP).Thevalueofecologicalcivilizationhealthquotientindexiscalculatedwiththefuzzyanalysismethod.Thehealthstateofecologicalcivilizationisjudgedbythepositiveandnegativeecologicalcivilizationhealthquotientindex.Thispaperhasselectedthedatafrom2009to2013tocalculatethewholehealthstatusofecologicalcivilizationofourcountry.Theconclusionisthatourcountryhadtransformedfromtheunhealthystatus(ecologicalcivilizationhealthquotientindexis-0.133)intothesub-healthstate(ecologicalcivilizationhealthquotientindexis0.191,butitsinternalrulelayersarenegative)duringthefiveyears.WeshouldconstructtheecologicalcivilizationmainlyfromtwoaspectsofresourceconservationandecologicalbehaviorcivilizationinthefuturetobuildabeautifulChina.

  • 标签: ECOLOGICAL CIVILIZATION HEALTH QUOTIENT INDEX of
  • 简介:索尔顿湖是在东南的加利福尼亚位于地形的关上的Salton马槽的最深的点的一个终端湖。它当前是在处于状态的区域的最大的湖。它被一个泛滥的事件在19051907沿着克罗拉多河创造,类似于在过去的世纪的历史的洪水在一样的地点创造了古老的卡休拉湖的短暂化身的方法。它在今天的中心的位置帝国山谷,一个热、干旱的地点家到一些在美国的最高效的灌溉农业陆地,通过在农业流量,它输入的主要形式,和广阔蒸发损失之间的精细的平衡保证了它的进行中的幸存。不过,它是的平行角色一个娱乐资源和重要野生动物产地,在它存在的第一个世纪建立了,被增加咸度减少威胁水质量,和从喂山谷农业的克罗拉多河的减少的水分配。将被影响由的逐渐地不明确的未来减少了的索尔顿湖脸从克罗拉多河,对到在山谷的支持耕作和能量工业的另外的水来源的要求,和稳定湖咸度的需要浇进口,维持娱乐资源,并且保存什么成为了重要生态系统和野生动物产地。

  • 标签: 历史洪水 科罗拉多河 故事 农业土地 野生动物 湖水盐度
  • 简介:Climateeffectcausedbyurbanizationhasbeenanindispensableanthropogenicfactorintheresearchonregionalclimatechange.Basedondailyprecipitationdata,possibleeffectsofprecipitationonthedevelopmentofthreecitygroupsineasternChinaarediscussed.Withthreeclassificationmethods(TP,PDandMODISlandcover),urbanandruralstationsareidentified.Themainfindingsareasfollows.Climateeffectscausedbyurbanizationaredifferentfromplacetoplace.In1960to2009,theurbanizationbroughtmoreprecipitationtotheYangtzeRiverDeltaandPearlRiverDeltacitygroupsbuthadnoobviouseffectontheprecipitationoftheBeijing-Tianjin-Tangshancitygroup.Thedifferenceofprecipitationisslightbetweenurbanandsuburbanareasduringslowperiodoftheurbanizationfrom1960to1979.Itismoreevidentintherapidperiod(1980to2009)thaturbanizationhaspositiveeffectsonprecipitationineverycitygroup.Thedifferenceofprecipitationbetweenurbanandruralstationsissensitivetothewaysofdistinguishingruralfromurbanarea,whichmaycauseuncertaintiesin1960to1979,whileitisverydifferentin1980to2009inwhichurbanizationfavorsmoreprecipitationinallcitygroupsandtheirdifferencesinprecipitationarenotsensitivetothedivisionmethods.

  • 标签: 日降水量 城市化 不确定性 中国东部 珠江三角洲城市群 区域气候变化
  • 简介:Thestructureofatmosphericboundarylayerdeterminestheabilityofatmosphericdispersionandhasanessentialimpactonairborneaerosols.Inthispaper,thedataofaradiosoundingexperimentheldinDongguanNationalMeteorologicalObservationStation,whichisinacoastalcityinPearlRiverDelta,aswellasthedataofatmosphericaerosols,wereutilizedinordertoanalyzethecharacteristicsofatmosphericboundarylayeranditseffectsonsurfaceaerosolconcentrations.Theresultsareshowedatfollows:thelocalcirculations,associatedwithdominantwinds,madecomplexstructuresofatmosphericlayers,asthecoldairandsystematicwindsweakenedintheendofacoldairevent.Weakenedwindshearsandinversionlayers,especiallyastrongnear-surfaceinversionlayer,remarkablydiminishedtheatmosphericdiffusionabilitiesandfacilitatedanespeciallyhighconcentrationofsurfaceaerosols.Theconvergencelineorweakshearlineofseabreezeinthegroundlevelhelpsweakentheatmosphericdiffusionabilitiesandresultsinatmosphericaerosolsaccumulation.

  • 标签: boundary layer characteristics aerosol concentration radio sounding Dongguan
  • 简介:Basedonobservationsandreanalysisdata,thecharacteristicsoftheevolutionofclimatologicalspringprecipitationoverSouthernChina(SPSC)andtheassociatedclimatologicalintraseasonaloscillation(CISO)andatmosphericcirculationarestudied.ResultsshowthatSPSCincreasesinanoscillatoryway.AlthoughtheevolutionofSPSCissimilarindifferentregions,therearealsodifferences.IndifferentregionsofSouthernChina,theonsetdatesoftherainseasonarefromthe12thto24thpentadandthepeakdatesareafterthe20thpentad.CISOisanimportantcomponentofSPSC,whichisnotonlystatisticallysignificant,butalsoaccompaniesadynamicallycoherentstructure.Thepeakwet/dryphaseofeachCISOcyclecorrespondstoasignificantrainfallincreasing/decreasingperiodandmodulatestheevolutionofSPSC.TherainfallgrowthinthesecondhalfofMarchandmid-Aprilistheresultofthemodulation.Thewet/dryphaseofCISOisaccompaniedbylow-levelconvergent(upper-leveldivergent)andcyclonic(anti-cyclonic)circulation,whichfavorsascendingmotiontodevelopoverSouthernChina.

  • 标签: spring precipitation over Southern China wavelet analysis climatological intraseasonal oscillation
  • 简介:Softsettheoryhasarichpotentialapplicationinseveralfields.Asoftgroupisaparameterizedfamilyofsubgroupsandafuzzysoftgroupisaparameterizedfamilyoffuzzysubgroups.Theconceptoffuzzysoftgroupisthegeneralizationofsoftgroup.AbdulkadirAygunogluandHalisAygunintroducedthenotionoffuzzysoftgroupsin2009[1].Inthispaper,theconceptoflatticeorderedfuzzysoftgroupsanditsdualityhasbeenintroduced.Thendistributiveandmodularlatticeorderedfuzzysoftgroupsareanalysed.Theobjectiveofthispaperistostudythelatticetheoryoverthecollectionoffuzzysoftgroupinaparametricmanner.Somepertinentpropertieshavebeenanalysedandhenceestablisheddualityprinciple.

  • 标签: 模糊子群 对偶性 有序 模格 分配 对偶原则
  • 简介:Theearth'sstructuremaychangewithtimeundernaturaloranthropogenicloading.Monitoringthesubtlechangesofthesubsurfacestructurewithrepeatableseismicsourcessuchasrepeatingearthquakes,ambientseismicnoiseandartificialsourceshasbecomeoneofthehottopicsinseismologicalresearch.Thesestudiesprovideimportantcluesinunderstandingthephysicalprocessofhazardouseventssuchasearthquakesandvolcaniceruptions.Inthisreviewweintroducethepracticesandadvancesinexploringandmonitoringthesubsurfacestructurewithartificialseismicsources.Thisreviewisorgainzedasfollows.Firstly,wedescribethestudiesonthecharacteristicsofdifferenttypesofseismicsource(especiallytheairgunsource).Thentheadvancesondataprocessingandmechanicalunderstandingaredepicted.Attheendofthisreview,werevealtheprospectsoffuturestudyofexplorationandmonitoringofthesubsurfacestructureanditstemporalvariationsusingartificialsources.

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