简介：Platemotionisoneofthemajordynamicsourcesfordeformationinthecrustandthemantle.SincethedeformationinthecrustcanbeobservedbyGPSandgeologicalobservation,thecomparisonbetweenthedeformationofthecrustandthatofthemantlebecomesoneofthemajormethodsavailableforstudyingthecouplingbetweencrustmovementandmantledeformation.RegionalcrustalstrainratetensorvaluesinChina,inferredfromQuaternaryfaultslipratesandearthquakedeformationdatawithinareasofapproximately200×200km,areinterpolatedwithsmooth,continuousfunctions(spline)todetermineaself-consistentmodelvelocitygradienttensorfieldforthepresent-dayChinesecontinent.Intheinterpolationprocess,GPSvelocityvectorsarealsomatched,withinadefinedframeofreference,bythemodelvelocityfield.Thedirectionsofsheardeformationcalculatedfromthemodelvelocityfieldarecomparedwiththefastdirectionsofshear-wavesplittinginferredfromSKSphasesandPnwaves.Theresultsmightrepresentthesheardeformationinmantleandthedeepcrust,respectively.Thereisarelativelylargedifferencebetweentheaveragedirectionofcrustalshearandthatofmantleshearintheareaofactivetectonics,whichmayindicatethatintheseactiveareasthecrustandthemantlemaybedecoupled.

简介：Inthisletter,weproposeahybridanalog/digitaldetectionalgorithm,theCorrelatedIn-terferenceCancellation(CIC)algorithm,forImpulseRadioUltra-WideBand(IR-UWB)system.TheCICalgorithmcorrelatesreceivedsignalwithitsdelayedversionsintheanalogdomainandsamplesthecorrelationoutputatthesymbolrate.Thesymbolratesamplesareprocessedinthedigitaldomaintoperforminterferencecancellation.Therefore,CICworksforhighdataratesystemswithheavyIn-terSymbolInterference(ISI).SimulationresultsshowthatCICachievesgoodperformanceintypicalUWBchannels.

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简介：AbstractGamete production is essential for mammalian reproduction. In the ovaries, the primordial follicle, which is the basic reproductive unit, is formed either perinatally or during the second pregnancy stage in humans. However, some oocytes die before the establishment of the primordial follicle pool. Consequently, it is essential to uncover how the size of the primordial follicle pool is determined and how the programmed cell death of oocytes is performed under potential surveillance. According to recent studies, the fate of oocytes in the fetal ovary seems to be determined by different protective strategies through the timely control of apoptosis or autophagy. In this review, we discuss at least three oocyte-derived protective biomarkers, glycogen synthase kinase 3 beta, X-linked inhibitor of apoptosis, and Lysine-specific demethylase 1 (also known as KDM1A), responsible for surveilling the developmental quality of fetal oocytes to coordinate primordial follicle formation in the fetal ovary. This review contributes to a better understanding of the secrets of the female reproductive reserve under physiological conditions.

简介：Thispaperstudiesthemodel-robustdesignproblemforgeneralmodelswithanunknownbiasorcontaminationandthecorrelatederrors.ThetrueresponsefunctionisassumedtobefromareproducingkernelHilbertspaceandtheerrorsarefittedbytheqthordermovingaverageprocessMA(q),especiallytheMA(1)errorsandtheMA(2)errors.Inbothsituations,designcriteriaarederivedintermsoftheaverageexpectedquadraticlossfortheleastsquaresestimationbyusingaminimaxmethod.Acaseisstudiedandtheorthogonalityofthecriteriaisprovedforthisspecialresponse.Therobustnessofthedesigncriteriaisdiscussedthroughseveralnumericalexamples.

简介：Inordertobetterassesstheperformanceofwirelesscommunicationsystems,itisdesirabletoproducemultipleRayleighfadingenvelopeswithspecifiedcorrelations.Inthispaper,weanalyzetheoreticallyaprocedurewhichgeneratescorrelatedGaussianrandomvariablesfromindependentGaussianrandomvariablesandgiveaphysicalexplanationforthelimitationofthisprocedure.Then,basedonsomeuncorrelatedRayleighfadingenvelopes,asimplebutefficientprocedureforgeneratinganarbitrarynumberofcross-correlatedRayleighfadingenvelopesisproposed.Simulationresultsandcomputationalcomplexityanalysisarepresented,whichshowthattheproposedmethodhassomeadvantages,suchashighaccuracy,lowcomputationalcomplexityandeasyimplementation,overtheconventionalsimulationmethod.

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简介：Thekeyofthesubspace-basedDirectionOfArrival(DOA)estimationliesintheestimationofsignalsubspacewithhighquality.Inthecaseofuncorrelatedsignalswhilethesignalsaretemporallycorrelated,anovelapproachfortheestimationofDOAinunknowncorrelatednoisefieldsisproposedinthispaper.TheapproachisbasedonthebiorthogonalitybetweenamatrixanditsMoore-Penrosepseudoinverse,andmadenoassumptiononthespatialcovariancematrixofthenoise.Theapproachexploitsthestructuralinformationofasetofspatio-temporalcorrelationmatrices,anditcangivearobustandpreciseestimationofsignalsubspace,soapreciseestimationofDOAisobtained.Itsperformancesareconfirmedbycomputersimulationresults.

简介：Vertically-layeredBellLaboratoriesLayeredSpace-Time(VBLAST)isoneofthemostpromisingtechniquesforrealizinghighspectralefficienciesoverwirelesslink.Inpreviouslypublishedwork,theperformanceofVBLASThasbeenprimarilyinvestigatedinuncorrelatedRayleighfadingchannels.Howeverinrealenvironmentssomecorrelationbetweenantennaelementscanbepresented.Inthispaper,westudytheimpactoftransmitcorrelationontheperformanceofVBLASTsystems.FinallyweprovidesimulationresultsdemonstratingtheimpactofspatialfadingcorrelationonthesymbolerrorrateofVBLAST.

简介：Thestationarycorrelationfunctionandtheassociatedrelaxationtimeforageneralsystemdrivenbycrosscorrelatedwhitenoisesarederived,byvirtueofaStratonovich-likeansatz.Theeffectsofcorrelatednoisesontherelaxationtimeofabistablekineticmodelcoupledtoanadditiveandamultiplicativewhitenoisesarestudied.ItisprovedthatforsmallfluctuationstherelaxationtimeTcasafunctionofλ(thecorrelatedintensitybetweennoises)exhibitsverydifferentbehavioursforαD(αandD,respectively,standfortheintensitiesofadditiveandmultiplicativenoises).Whenα>D,Tcincreaseswithincreasingλ.Butwhenα

简介：它最近被看了那相关自发的排放激光(CEL)展览在线性政体的短暂纠纷。这里我们覆查在二光子的CEL的量关联并且在连续可变纠纷上探索浸透效果。稳定的州的纠纷在弱或中等的浸透政体是可获得的，这被显示出，当时在深浸透政体外面被洗。

简介：Asimplifiedmethodforthesimulationoftheergodicspatiallycorrelatedseismicgroundmotionisproposedbasedonthecommonlyusedoriginalspectralrepresentationmethod.Torepresentthecorrelationinthegroundmotion,thephaseanglesaregivenbyexplicittermswithaclearphysicalmeaning.Bytheseexplicitterms,thecomputationalefficiencycanbeimprovedbyconvertingthedecompositionofthecomplexcross-spectralmatrixintothedecompositionoftherealincoherencecoefficientmatrix.Double-indexingfrequenciesareintroducedtosimulatetheergodicseismicgroundmotion,andtheergodicfeatureoftheimprovedmethodisdemonstratedtheoretically.Subsequently,anexplicitsolutionoftheelementsofthelowertriangularmatrixundertheCholeskydecompositionisgiven.Withthisexplicitsolution,theimprovedmethodissimplified,andthecomputationalefficiencycanbeimprovedgreatlybyavoidingtherepetitiveCholeskydecompositionofthecross-spectralmatrixineachfrequencystep.Finally,anumericalexampleshowsthegoodcharacteristicoftheimprovedmethod.

简介：Countdatawithexcesszerosareoftenencounteredinmanymedical,biomedicalandpublichealthapplications.Inthispaper,anextensionofzero-inflatedPoissonmixedregressionmodelsispresentedfordealingwithmultileveldataset,referredashierarchicalmixturezero-inflatedPoissonmixedregressionmodels.AstochasticEMalgorithmisdevelopedforobtainingtheMLestimatesofinterestedparametersandamodelcomparisonisalsoconsideredforcomparingmodelswithdifferentlatentclassesthroughBICcriterion.AnapplicationtotheanalysisofcountdatafromaShanghaiAdolescenceFitnessSurveyandasimulationstudyillustratetheusefulnessandeffectivenessofourmethodologies.

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简介：在这篇文章，我们在二维的强烈相关的费米子系统在量阶段转变上考察我们的最近的工作。我们由用细胞的动态吝啬地的理论(CDMFT)和连续时间的量蒙特卡罗算法的联合计算状态，两倍占有，和费密表面进化的密度讨论这些系统的metalinsulator转变性质。而且，我们由定义磁性的顺序参数探索每个状态的磁性。包括antiferromagnetic金属，顺磁的金属，Kondo金属，和铁磁性的绝缘体，有许多吸引人的量状态的富有的阶段图被作出对有利的裁决有强烈相关的费米子的二维的格子。我们相信我们的结果将导致真实材料的性质的更好的理解。

简介：Fieldandpotexperimentswereconductedusingindicaricevarietieswithdifferentialchalkiness.Thereweresignificantdifferencesinrootactivityamongthevarieties.Thepercentagesofchalkygrainsandchalkyareawerebothnegativelycorrelatedwithrootactivityexpressedasα-naphthylamineoxidationability(RA)pergramoffreshroot(RAfw),RAperspikelet(RAgrn),orRApersinkcapacity(RAsink).TheRAsinkwasmorecloselyrelatedtochalkinessthanRAfwandRAgrnwhenvarietiesdifferedgreatlyinpaniclesizeandgrainweight.ApplicationofNO3--Nfertilizeratheadingresultedinhigherrootactivityandreducedchalkiness.Applicationof10daysafterheadingunderdifferentchemicaltreatments(r=-0.8567*andr=-0.9211**,respectively).

简介：到达(DOA)评价方法的一个计算有效宽带方向面对未知相关噪音被介绍。集中转变仅仅信号subspace的矩阵的快两方面的关联转变(TCT)第一被开发，然后增殖者方法被利用计算集中的矩阵和噪音关联矩阵。与常规宽带DOA评价方法相对照，建议方法要求仅仅线性的操作但是不包含任何eigenvelue分解估计集中的矩阵；它喝更低的计算精液，特别当传感器数字比来源数字大时。因为噪音关联矩阵从数组关联矩阵被估计并且消除，DOA评价的精确性甚至面对未知关联噪音被改进。计算机模拟结果验证了方法的效率。

简介：Inrealmultiple-inputmultiple-output(MIMO)systems,theperfectchannelstateinformation(CSI)maybecostlyorimpossibletoacquire.Butthechannelstatisticalinformationcanbeconsideredrelativelystationaryduringlong-termtransmission.Thestatisticalinformationcanbeobtainedatthereceiverandfedbacktothetransmitteranddonotrequirefrequentupdate.Byexploitingchannelmeanandcovarianceinformationatthetransmittersimultaneously,thispaperinvestigatestheoptimaltrans-missionstrategyforspatiallycorrelatedMIMOchannels.Anupperboundofergodiccapacityisderivedandtakenastheper-formancecriterion.Simulationresultsarealsogiventoshowtheperformanceimprovementoftheoptimaltransmissionstrategy.

简介：为协调宽带的评价在未知相关噪音领域里采购的到达(DOA)的方向的一个柔韧的算法被调查。噪音通常在在实际应用程序的传感器之中未知、相关，特别为有比较地小的孔的数组。空间地相关的噪音在在DOA评价集中错误和严重降级招致增加，并且因此，基于区分协变性矩阵集中转变的一个方法被建议消除噪音，因此减少集中的错误。模拟和试验性的结果表明建议方法的有效性。

简介：我们报导nxn“在n的情况中的像连贯的州的解决方案，n”=1,2，...为包括二的系统，相关库仑的离子与一个时间依赖者泛音潜力在一个维的Paultrap限制了。n之一“centre-of-massmotion的准确答案描述一个概括协调状态。为小开车力量，相对运动的napproximatesolutions被构造，它在古典平衡位置附近描述twoions的协调摆动。