简介：Thispapergivesaspectrumexpressionwhichissimpleandhasaclearphysicalconceptionforpulsefrequencymodulationsignal,andhasbeenconfirmedbyanexperimentsimultaneously.

简介：ＵｎｉｖｅｒｓａｌＳｐｅｃｔｒａｌＭｏｄｕｌａｔｉｏｎＳｅｎｓｏｒｓ：（Ⅱ）Ａｐｐｌｉｃａｔｉｏｎｓ①ＳＨＩＹｏｎｇｊｉ（ＬｕｏｙａｎｇＴｅｃｈｎｏｌｏｇｙＣｏｌｅｇｅ，Ｌｕｏｙａｎｇ４７１００３，ＣＨＮ）Ａｂｓｒｔａｃｔ：Ｉｎｐａｒｔ（Ⅰ），ｔｈｅ...

简介：Astaticapproachmethodmethodisusedtogetthespectrumexpressionofthepulseintervalmodulationsignal.Theexpressionissimple,hasaclearphysicalconceptandithasbeenconfirmedbyasimultaneousexperiment.

简介：Themodulationandcontrolofgecko'sfootmovementswerestudiedelectrophysiologicallyinordertodesignthemotorcontrolsystemofagecko-mimicrobot.Inthisstudy(1)theanatomyoftheperipheralnervescontrollingthegecko'sfootmovementswasdetermined;(2)therelationshipbetweenthelimbnervesofthegeckoanditsfootmotorpatternswasstudied;(3)theafferentimpulsesofthenervesevokedbyrubbingthegecko'stoesandpalmwererecorded;(4)copyingthenaturalpatternsofmovementofthegecko'sfoot(abduction,adduction,flexion,andrevolution)anditslimbnervemodulationandcontrolmechanism,thenerveswerestimulatedundercomputercontrol,andtheresultsrecordedbyCCD.Resultssuggestthatgecko'sfootmovementscanbesuccessfullycontrolledbyartificialelectricalsignals.

简介：ThepurposeofthisinvestigationistodemonstratewhethertriptolidecaninhibitTNF-αselectivelyandtostudythemechanism.TheabilityoftriptolidetoinhibittheproductionofTNF-αandIFN-γstimulatedbylipopolysaccharide(LPS)andphytohemagglutinin(PHA)onperipheralbloodmononuclearcell(PBMC)fromhealthydonorswasmeasuredbyELISAassays.TheimmunologicalmechanismofactionoftriptolideonTNF-αwasinvestigatedbypre-treatmentwithtriptolideofPBMCandmonecytesfollowedbyanalysiswithFlowCytometry(FCM).TheinhibitionofTNF-αandIFN-γbytriptol-ideoccurredinadosedependentmannerandtheIC50wasequalto5-10ng/mlforTNF-aand0.1-1ng/mlforIFN-γ.TheconcentrationsofTNF-αmeasuredafterthedifferentpre-treatmentswithtriptolideonPBMCandmonecytesareconsistentwithitseffectsonapopulationofCD14^+/TNF-αmonecytesshownonFCM.Thetwomethodsofpre-treatmentswithtriptolidemaysuggestdifferentclinicalsignificances,ImmunophenotypinganalysiswithFCMrevealedthattriptolidemaycompetewithLPSforbindingtotheCD14receptor.Thestudyprovidesbasicevidencethattriptolidemaybeusedasananti-inflam-matoryreagentfortreatmentofleprosyreactions.

简介：关联向量机器(RVM)的普通信号分类的一条新途径基于向量机器(SVM)和RVM被比较并且分析的支持的核方法被介绍，二发信号分类器。信号的开始的几个柔韧的特征作为分类器的输入被提取，然后，内核思维被用来隐含地印射特征向量到高维的特征空格，和多班RVM和SVM分类器被设计完成AM，CW，SSB，MFSK和MPSK信号识别。模拟结果看了那什么时候选了有的合适的参数，RVM和SVM为可比较的精确性，但是RVM有更少的学习时间和基础功能。RVM的分类速度比SVM快得多。

简介：ThispaperpresentsapragmaticadaptiveschemeforTuCMoverslowlyfadingchannels.Theadaptiveschemeemploysasingleturbocodedmodulatorcomposedofavariable-rateturboencoderandavariable-ratevariable-powerMQAMforallfadingregions,soithasanacceptablecomplexitytoimplement.TheoptimaladaptiveTuCMschemeisdeterminedsubjecttovarioussystemconstraints.Simulationshavebeenperformedtomeasuretheperformanceoftheschemefordifferentparameters.Itisshownthatadoptingboththeturbocodedmodulatorandthetransmitpowerachievesaperformancewithin2.5dBofthefadingchannelcapacity.

简介：ＵｎｉｖｅｒｓａｌＳｐｅｃｔｒａｌＭｏｄｕｌａｔｉｏｎＳｅｎｓｏｒｓ：（Ⅰ）ＴｈｅｏｒｙａｎｄＳｔｒｕｃｔｕｒｅ①ＳＨＩＹｏｎｇｊｉ（ＬｕｏｙａｎｇＴｅｃｈｎｏｌｏｇｙＣｏｌｅｇｅ，Ｌｕｏｙａｎｇ４７１００３，ＣＨＮ）Ａｂｓｔｒａｃｔ：Ａｕｎｉｖｅｒ...

简介：Enteralnutritionhasbeenstronglyrecommendedbymajorscientificsocietiesforthenutritionalmanagementofpatientswithacutepancreatitis.Providingsevereacutepancreatitispatientswithenteralnutritionwithinthefirst24-48hofhospitaladmissioncanhelpimproveoutcomescomparedtoparenteralnutritionandnofeeding.Newresearchisfocusinginonwhenandwhattofeedtobestimproveoutcomesforacutepancreatitispatients.Earlyenteralnutritionhavethepotentialtomodulatetheimmuneresponses.Despitethisconsistentevidenceofearlyenteralnutritioninpatientswithacutepancreatitis,clinicalpracticecontinuestovaryduetoindividualclinicianpreference.Achievingtheimmunemodulatingeffectsofenteralnutritionheavilydependonproperplacementofthefeedingtubeandmanaginganytubefeedingassociatedcomplications.Thecurrentarticlereviewstheimmunemodulatingeffectsofenteralnutritionandpro-andprebioticsandsuggestssomepracticaltoolsthathelpimprovethepatientadherenceandtolerancetothetubefeeding.Properselectionofthetypeofthetube,closemonitoringofthetubeforitsplacement,patencyandsecuringitsproperplacementandroutinecheckingthegastricresidualvolumecouldallhelpimprovetheoutcome.Usingpeptide-basedandhighmediumchaintriglyceridesfeedingformulashelpimprovingfeedingtolerance.

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简介：Anewdigitalmodulationrecognitionalgorithmbasedontheinstantaneousinformationisproposedtoimprovetherecognitionsuccessrateinthelowsignalnoiseratio(SNR).Firstdenoisingoftheinstantaneousinformationisoptimizedbywaveletfilter,whichcanimprovetherecognitionabilityatlowSNR.Besidestheexisting3keyfeatureparameters,3newkeyfeatureparametersareproposedtobeusedasthedecisioncriteriaforidentifyingdifferenttypesofdigitalmodulation,whichsimplifiestherecognitionprocessandimprovestherecognitionabilityatlowSNR.Thesimulationsdemonstratethatallmodulationtypesofinteresthavebeenclassifiedwithsuccessrateofnolowerthan99%whenSNRis10dB.EveniftheSNRislowerthan5dB,thesuccessrateisover95.4%formostofthemodulationtypes.

简介：Anewmethodofestimatingthefrequency-knownsignalsfromthestrongbackgroundnoisewaspresentedfirst.Thenthenewmethodwasusedinthedemodulationofthedigitalfrequencymodulation(FSK)signals.ThenewdemodulationmethodcancompletethedemodulationoftheFSKsignalsonlywiththecarrierfrequencyandwithoutanycarrierphaseinformation.Thesimulationresultsshowthattheperformanceofanti-noiseofthenewmethodisbetterthanthatoftheincoherentdemodulationmethodandthefluctuationofthecarrierphasehaslittleeffectonthenewmethod.Sothenewdemodulationmethodhasafineprospectinthepracticalapplications.

简介：Amplitudemodulationofnear-wallturbulencebylarge-scalestructuresintheouterlayerisinvestigatedbydirectnumericalsimulationofturbulentchannelflowsatReynoldsnumberReτ=540,1000,2000.Theeffectofmodulationisobviousinthetwo-pointcross-sectioncorrelationmap,andthecorrelationcoefficientsincreasesignificantlywiththeReynoldsnumber.Theinfluenceofmodulationisreflectedinthetailoftheprobabilitydensityfunctionofthenear-wallflowsignals,whichexpandsastheReynoldsnumberincreases.Theflatnessfactorprovidesaquantitativedescriptionofthehighfluctuationeventsduetomodulation.Vorticalstructuresassociatedwithmodulationarerevealedbyconditionallyaveragingtheflowfieldofthenear-wallextremeevents,providingadepictionofhowtheinfluenceofthelarge-scalestructurespenetratetowardsthenear-wallregion.

简介：这份报纸在使隧道褪色的伪静电干扰rayleigh上为合作传播基于空间调整论述一个新奇增长中继协议，也就是空间的调整增长中继(SMIR)，它使用空间调整的概念进增长中继。在建议协议，信息位被印射进带单位的二个信息：1)在星座图的一个星座点并且2)空间领域，即进一个特别合作用户数字的地点。为SMIR协议的框架错误率(FER)的分析表示被导出。模拟结果证实介绍数学分析并且证明那个SMIR协议分别地为3-bit/symbol和5-bit/symbol传播在常规协议上在信号获得2和3dB到噪音比率(SNR)。而且，在这个协议下面，系统能完成高得多的产量，它意味着我们的建议协议在性能带重要获得。

简介：Basedonthetheoryofthepassivehydrogenmaser,alongwiththetechnologyoffrequencymodulationandmodulationtransferspectroscopy,thetheoreticalexpressionofthesinglefrequencymodulationforthepassivehydrogenmaserandthefunctionofthecavityandHlineerrorsignalsseparationarederived,whicharebasicallycoincidentwiththeexperiment.Theabsorptionanddispersionspectrumcurveswithdifferentresonancewidthsshowthatthecavityandhydrogentransitionserveasdiscriminators,andthetwoerrorsignalscanbeseparated.Throughthecalculationsofthetwoerrorsignalsinthepassivehydrogenmaser,itanalyzesthetraditionalmethodofthetwoerrorsignalsseparation,andthendescribesanewimprovedmethodforthepassivehydrogenservoloopsconsistingintheuseofasinglemodulationfrequencyandfrequencydiscrimination.Anullinteractionofthetwoerrorsignalsforthenewselectionofthephasesettingisdeducedtheoreticallyandvalidatedbythesimulation.Thepreliminaryexperimentalresultconfirmsthefeasibilityofthisnewapproach,whichcanreducetheinfluencefromthecavityfrequencyvarietyonthecrystaloscillatorandcontributesignificantlytothelongtermperformanceofthepassivehydrogenmaser.

简介：Thispaperpresentstheprincipleofphasemodulationoftheopticalwave,thatisusingadensefringefamilytomodulateanotherfringepattern,anditsapplicationinfringemultiplication.Itisofuniversalsignificanceinopticallyexperimentalmechanics.

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简介：Tinnitusisasubjectiveperceptionofphantomsoundthatcurrentlycannotbeobjectivelymeasured.However,thereisgrowingevidencesuggestingthatthebiologicalsourceoftinnitusmayexistinoneormorethanoneplaceintheauditorypathway.Recentstudieshavefoundthatneurotransmittersormodulators,suchasglutamate,γ-aminobutyricacid(GABA),serotonin,dynorphin,dopamine,neurosteroid,acetylcholine(ACh)andsubstanceP,areinvolvedintinnitusgeneration.Animalandhumanstudieshaveshownthatsomeoftheseneurotransmittersandtheagonistsorantagonistsoftheirreceptorseitheraffecttinnitusbehaviorsordemonstratesomedegreeoftreatmenteffectsontinnitus.However,duetotheunclearbiologicalmechanismsoftinnitusandsideeffectsofthesedrugs,thevalueofclinicalusageofsuchdrugsintreatingtinnitusisyettobeestablished.Revealingtherelationshipbetweentinnitusandneurotransmitterreceptorfunctionswillhelpidentifymoreeffectivedrugsfortinnitustreatment.Thisarticlereviewstheliteratureofneurophysiologicalstudiesontinnitusinbothanimalandhumansubjectstudiesatvariouslevelsoftheauditorypathway.

简介：Basedonfluidequations,weshowatime-dependentself-consistentnonlinearmodelforvoidformationinmagnetizeddustyplasmas.Thecylindricalconfigurationisappliedtobetterillustratetheeffectsofthestaticmagneticfield,consideringtheazimuthalmotionofthedusts.Thenonlinearevolutionofthedustvoidandtherotationofthedustparticlesaretheninvestigatednumerically.Theresultsshowthat,similartotheunmagnetizedone-dimensionalmodel,theradialiondragplaysacrucialroleintheevolutionofthevoid.Moreover,thedustrotationisdrivenbytheazimuthaliondragforceexertingonthedust.Astheazimuthalcomponentofionvelocityincreaseslinearlywiththestrengthofthemagneticfield,theazimuthalcomponentofdustvelocityincreasessynchronously.Moreover,theangularvelocitygradientsofthedustrotationshowasheareddustflowaroundthevoid.

简介：基于self-imaging效果，multimode干扰(MMI)有区域调整的光开关被建议。地转移矩阵被介绍分析MMI开关。作为一个例子，3脳的阶段调整参数为不同切换的盒子的3MMI开关被解决域转移方程获得。并且有限差别的横梁繁殖方法(FD-BPM)被用来证实分析结果。CLC数字TN256不到资助号码200506由shenzhen大学的科学研究开始基础支持了。