简介：ＰｒｅｌｉｍｉｎａｒｙｓｔｕｄｙｏｎｔｈｅｄｕｒａｔｉｏｎｏｆｅａｒｔｈｑｕａｋｅａｃｔｉｖｉｔｙＦｕ－ＭｉｎｇＨＵＡＮＧ（黄福明）（ＩｎｓｔｉｔｕｔｅｏｆＣｒｕｓｔａｌＤｙｎａｍｉｃｓ，ＳｔａｔｅＳｅｉｓｍｏｌｏｇｉｃａｌＢｕｒｅａｕ，Ｂｅｉｊｉｎ...

简介：基于在国际软件确定基准点标准组(ISBSG)仓库包含的数据的实验分析，这篇论文基于工程努力论述软件工程计划持续时间模型。持续时间模型为全部数据集并且为为个人计算机开发的工程的子集被造，中间范围并且大型机平台。持续时间模型也为比努力并且为要求努力的超过400人小时的工程的400人小时要求少数的工程被构造。作为第二个独立变量增加分配资源的最大的数字解释持续时间也被分析的实用性。从在功能的功能的尺寸削尖的工程直接造持续时间模型的机会也被调查。电子增补材料这件物品(doi:10.1007/s11390-007-9051-5)的联机版本contatins增补材料，它对授权用户可得到。

简介：ItisprovedinthispaperthatcheckingatimedautomatonMwithrespecttoalineardurationpropertyDcanbedonebyinvestigatingonlytheintegraltimedstatesofM,Anequivalencerelationisintroducedinthispapertodividetheinfinitenumberofintegraltimedstatesintofinitenumberofequivalenceclasses.Basedonthis,amethodisproposedforcheckingwhetherMsatisfiesD.Insomecases,thenumberofequivalenceclassesistoolargeforacomputertomainpulate,Atechniqueforreducingthesearch-spaceforcheckinglineardurationpropoertyisalsodescribed.Thistechniqueismoresuitableforthecaseinthispaperthanthoseintheliteraturebecausemostofthosetechniquesaredesignedforreachablilityanalysis.

简介：Inordertosolvetheproblemofearlyestimationofmoderatelystrongaftershockdurationtimeinanearthquakesequence,thisstudyhasbeenconducted.First,thedefinitionofthestrongaftershockhasbeengiven.Itispointedoutthatthereisadifferenceinthestrongaftershockdurationtimebetweenthemainshocktypesequenceandthestrongearthquakeswarmsequence.Afterdividingthethreecases,i.e.,astrongaftershockdurationtimelargerthan1day,smallerthan1day,andnostrongaftershockoccurredinamainshocktypesequencebyusingthepatternrecognitionmethod,wegavetheroughcorrelationrelationbetweenstrongaftershockdurationtimeandfirstlargeshockmagnitudefortwotypesofsequences.Finally,thejudgmentindexandmethodofestimatingstrongaftershockdurationtimesfordifferentsequencetypeshavebeengiven.

简介：监视任何结构的表演要求批评的点的位置的变化的即时大小。不同技术能被用于这个目的，一个出现优点和劣势。这种技术基于放系统(GPS，GLONASS和未来伽利略)的卫星似乎为长时期结构至少很有希望。GPS特别地提供能与高精确性追踪动态排水量的采样率。它的服务能力独立于大气的条件，温度变化和监视目标的可见性。这篇论文调查双频率GPS接收装置的大小的可靠性和精确性。一台线性电磁的马达沿着一个给定的方向移动一个目标。位置的变化与他们由GPS接收装置记录了的估计相比，其天线位于参考书目标。比较基于足够地长的记录。

简介：依靠三十篇记事讲话的一个语料库，沥青的角色和在句子口音的诗体学的词的持续时间在讲话上下文被学习。起初，沥青被使正常化。然后，根据沥青，范围，句子和诗体学的词被分类进三个等级加强，正常、削弱分别地。在一样的时间，句子口音被分类进二个层次由感性的评估主要、第二等。结果证明在到句子的反对的诗体学的词的相对沥青范围主导地作出贡献判口音。而且，在句子口音的沥青和持续时间的角色被句子和诗体学的词的等级交互地影响。在正常的诗体学的词，当第二等的句子口音主要取决于沥青的变化时，主要句子口音被沥青和持续时间的相互的表演认识到。在加强的诗体学的词，当句子的沥青范围是压缩的更多时，在句子口音的持续时间的角色是更重要的。最后，在沥青和持续时间之间的关联首先被诗体学的词的力量影响，这被发现，并且在削弱的、正常、加强的诗体学的词，在沥青和持续时间之间的关联分别地积极、空、否定。

简介：Theoptimaldurationofdualantiplatelettherapy(DAPT)ofaspirinandaP2Y12receptorblockerafterstentingisstillbeingdebated.ThecurrentrecommendationsforDAPTdurationaresignificantlyfocusedonreducingstentthrombosis;alessfrequenteventwithlaterthanearliergenerationdrugelutingstents(DES).ApersistentoccurrenceoflateandverylatestentthrombosiswithfirstgenerationDESsupportedextendeduseofDAPTbeyondoneyear.However,recentstudieshavedemonstratedthatextendeddurationDAPTisassociatedwithincreasedbleeding;anindependentpredictorforpooroutcomes,includinglong-termmortality.Second-generationDESareassociatedwithlesslateandverylatestentthrombosis.SomerecentstudieshavesupportedashorterdurationofDAPTforsecondgenerationDES.However,thesestudieswereinadequatelypoweredtoassesssignificantdifferencesinstentthrombosis.Furthermore,extendeddurationDAPThasbeenassociatedwithareducedriskofthromboticeventsinnon-culpritvesselsinadditiontostentthrombosisinpatientswithacutecoronarysyndromes(ACS).ThehigherriskofbleedingassociatedwithextendedDAPTtherapyprovidesastrongrationaleforpersonalizedDAPTbasedonpatientriskfactors(e.g.ACSvs.non-ACS),typeofstents,andcost-benefitanalyses.

简介：TheresearchaimistoinvestigatethathowpitchanddurationaffecttheperceptionoftheneutraltoneinstandardChineseandthatwhichoneofthetwofactorsismoreimportant.Apsycho-acousticexperimentwasconducted,inwhichthelisteningstimuliconsistedof15groupsofdisyllabicwords,andthepitchesanddurationsofthetwosyllablesineachofthewordswereartificiallycontrolled.Thirty-threestandardChinesenativespeakersparticipatedinaforced-choicetasktojudgeifthesecondsyllablesofthewordstheyheardcarriedtheneutraltoneorthenormaltones.Theresultsoftheexperimentindicatedthat,(1)theeffectsofbothpitchanddurationontheperceptionoftheneutraltonearesignificant;(2)theeffectofpitchislargerthanthatofduration;(3)boththeF0valuesofthehighpointinthepitchcontourandthepitchcontourpatternhaveinfluenceontheperception.Theresultsoftheexperimentwerecorrespondenttosomeextenttothoseofthepreviousacousticanalysesontheneutraltone.Thediversitybetweentheresultsofthepresentedperceptualstudyandthoseoftheacousticalstudiesimpliesthattheacousticfeaturesoftheneutraltonethatexistinnaturalspeechwhiledonotaffecttheperceptionmaybephonologicallyredundant.

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简介：Inthispaper,weconsidertheBrownianmotionriskmodelwithinterest.TheLaplacetransformofthefirstexittimefromtheupperbarrierbeforehittingthelowerbarrierisobtained.Usingtheobtainedresultandexploitingthelimitationidea,wederivetheLaplacetransformoftotaldurationofnegativesurplus.

简介：这份报纸为全球阳光持续时间评价论述一个改进模型。方法论由包括雪盖子信息，阳光和卫星角度和一个趋势修正因素季节合并地球同步的卫星图象，为云盖子索引的决心。建议方法论的有效性与1h的时间的分辨率和2.5km瑵洠慥?汦睯?湡?慷?畦瑲敨?浥汰祯摥琠?瑳摵?桴?的空间分辨率在可见乐队用Meteosat地球同步的卫星图象被测试了晥敦瑣漠?桴?敭湡映潬?湯琠敨愠潣獵楴?数晲牯慭据?景琠敨洠?汦牥.閌?閌吗？？

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简介：AbstractBackgrounds:Inadequate sleep duration is associated with a higher risk of type 2 diabetes and the relationship is nonlinear. We aim to assess the curve relationship between night sleep duration and the incidence of type 2 diabetes in China.Methods:A cohort of 11,539 participants from the REACTION study without diabetes at baseline (2011) were followed until 2014 for the development of type 2 diabetes. The average number of hours of sleep per night was grouped. Incidence rates and odds ratios (ORs) were calculated for the development of diabetes in each sleep duration category.Results:Compared to people who sleep for 7 to 8 h/night, people with longer sleep duration (≥9 h/night) had a greater risk of type 2 diabetes (OR: 1.27; 95% CI: 1.01-1.61), while shorter sleep (<6 h/night) had no significant difference in risk of type 2 diabetes. When the dataset was stratified based on selected covariates, the association between type 2 diabetes and long sleep duration became more evident among individuals <65 years of age, male, body mass index <24 kg/m2 or with hypertension or hyperlipidemia, no interaction effects were observed. Furthermore, compared to people persistently sleeping 7 to 9 h/night, those who persistently slept ≥9 h/night had a higher risk of type 2 diabetes. The optimal sleep duration was 6.3 to 7.5 h/night.Conclusions:Short or long sleep duration was associated with a higher risk of type 2 diabetes. Persistently long sleep duration increased the risk.

简介：Theeffectsofconcurrentpulsesinholdingdurationonsuperplasticityof2091Al-Lialloyhavebeeninvestigatedinthispaper.Theresultsofsuperplasticdeformationshowedthatconcurrentpulsesinholdingdurationdecreasedtheoptimumholdingtimeforsuperplasticdeformation(ε=3.33×10-2s,T=500℃)from15to5minandincreasedelongation（δ）from530to550%.Themetallographicobservationsshowedthatthespecimensappliedlybyconcurrentpulsewerecom-pletelyrecrystallizedafterholding5minat500℃,andgrainsrefinedtoabout2μm,andthosespec-imensunappliedcurrentpulseswerepartlyrecrystallizedevenafterholding15minat500℃.theelectronprobeanalysesindicatedthatconcurrentpulsespromotedatomicdiffusion.Itispointedoutthatconcurrentpulsesaccelerateatomdiffusionanddislocationmotion.increasenucleationrateofrecrystallizationanddecreasetheoptimumholdingtimeforsuperplasticdeformationandincreasesuperplasticproperties.

简介：在这篇文章，激光产生了瑞利，兰姆波浪被考虑它的脉搏持续时间学习。物理模型和理论答案被介绍在脱离产生政体下面为铝样品预言相应波形。由有选择脉搏持续时间的激光的激动的瑞利和兰姆波浪的波形被激光干涉仪测量并且理论上分析了，并且在测量和分析之间的协议为理论模型和答案的确认被表明。拓宽瑞利波浪并且高顺序兰姆波浪模式消失能被激光随脉搏持续时间的增加发现超声的技术。

简介：Durationisasalientfeatureofacousticsignalsincludingspeech.Durationtuningwasfirstreportedinfrogsandlaterinecholocatingbats.Morerecently,durationtuninghasbeenreportedinnon-echolocatingmammalsandappearstobeafundamentalencodingmechanismthroughouttheanimalkingdom.However,thedurationtuningreportedinthesenon-echolocatingmammalsappearstobemuchweakerthanthatinthepreviousstudiesonbats.Incontrasttothisfinding,ourrecentstudyreportedthatdurationtuningintheICinguineapigsappearedtobestrongwhenitwasmeasuredusinganappropriatetemporalwindow.Withsuchatemporalwindow,durationtuningwasfoundtobecompatiblewiththatofecho-locatingbats.Inthepresentreport,wefurtherdemonstratethatdurationtuningintheICofthisspeciesisestablishedbyinteractionbetweenexcitationandGABAergicinhibition.Inadditiontooverallincreaseinresponsiveness,applicationofbicuculline(BIC),aGABA-Areceptorantagonist,wasfoundtosignificantlyreduceoreliminatedurationselectivityin44outofthe67neuronsthatshowedcleardurationtuningfromasampleof340neurons.

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简介：Objective:Toinvestigatetheinfluenceofdifferentrightventricular(RV)pacingsitesonQRSwidth,andtoprovideapotentialreferencesiteforpermanentrightventricularpacinginpatientsimplantedwithpermanentpacemakers.PacingatthesitewiththeshortestQRSdurationmayreducethedeleteriouseffectsofRVpacingonLVfunction,andthushavingbeneficialeffectsonpatient’soutcome.Methods:AllconsecutivepatientswhowereplannedtohavepermanentpacemakerimplantationforaClassIorIIaindicationatourdepartmentfromOctober2010toJuly2012werescreenedfortheparticipationinthisprospective,singlecenter,non-randomizedstudy.ThebaselinesurfaceECGwasanalyzedforQRSwidthandmorphology,respectively.DuringtheimplantationprocedurepatientsweretransientlypacedatdifferentRVlocations(rightventricularapex,rightventricularinflowtract[RVIT],midseptum,highseptumandrightventricularoutflowtract[RVOT])beforetheleadwasplacedatitsfinalposition.Duringpacingatthedifferentpositionsthesurface12-leadsECGwasrecorded.BasedonthesurfaceofECGQRSdurationandmorphologyofthedifferentrightventricularpacingsiteswereanalyzedandcomparedwithbaselineandtoeachother.Results:Atotalof216patients(39%female,meanage69±13years,higherdegreeAVblock30.5%)wasenrolledinthestudy.PacedQRSdurationwassignificantlydifferentbetweenallrightventricularpacingsitescomparedwiththebaselineECG(baseline:106ms±21ms;meanpaced:158ms±16ms;p<0.001).RVApacingshowedthewidestQRS(168ms±16ms).QRSdurationwithRVITpacingwas166ms±15ms,andthatwithRVOTpacingwas165ms±15ms,respectively.QRSdurationwasnotsignificantlydifferentbetweenthesethreepositions.Mid-septalpacingshowedthenarrowestQRS(139ms±19ms)comparedtoallotherpacingsites(p<0.001).Pacingatthehigh-septumshowedabroaderQRS(153ms±14ms)thanthatpacingatthemid-septum.Comparedtootherrightventricularpacingsites

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