简介：ＳｉｍｕｌａｔｉｏｎｏｆｔｈｅａｃｔｉｖｅａｎｄｑｕｉｅｔｐｅｒｉｏｄｓｏｆｓｅｉｓｍｉｃｉｔｙＺＨＯＮＧ－ＸＭＮＨＵＡＮＧ（黄忠贤）（ＩｎｓｔｉｔｕｔｅｏｆＣｒｕｓｔａｌＤｙｎａｍｉｃｓ，ＳｔａｔｅＳｅｉｓｍｏｌｏｇｉｃａｌＢｕｒｅａｕ，Ｂｅｉｊｉ...

简介：Thispaperstudiesaservicefirmwhosebusinesstimecanbedividedintoseveralperiods,eachprovidingdifferentvaluetocustomers.Heterogeneousserviceisamajorreasonresultinginimbalancesbetweensupplyanddemand.Sincecustomersdifferintheirdegreeofimpatience,firmscanusedifferentialpricingmechanismstooptimizetheirobjectivesandmatchsupplywithdemandineachperiod,byinducingcustomerstochoosedifferentperiods.Westudytwotypesoffirms,aninternalfirm,theobjectiveofwhichistomaximizethesystem′s(includingthefirmandallthecustomers)totalnetvalue,andacommercialfirm,whichaimstooptimizeitsownprofit.Thoughimpatiencefactorsarecustomers′privateinformation,foreachtypeoffirm,wederivetheoptimalincentivecompatiblepricingpolicy,underwhichallthecomingcustomerswillfollowthefirm′sassignment,thatis,patientcustomerswillbuytheserviceinhigh-valueperiods,buttheirwaitingtimewillbelonger,whileimpatientcustomerswillenterintothelow-valueperiods,buttheywillbecompensatedbyshorterwaitingtimes.Furthermore,intheinternalfirm,wealsoprovethatthismechanismenablesthedecentralizationofdecisions,whilemaintainingcentralizedsystem-wideoptimality.Numericalanalysisshowsthatwhenthereissufficientcapacity,theinternalfirmdoesnotalwaysneedtosetlowerpricesthanthecommercialfirmineveryperiod.

简介：Inthispaper,westudythelocalbifurcationofcriticalperiodsnearthenondegeneratecenter(theorigin)ofaclassofLiénardequationswithdegree2n,andprovethatatmost2n-2criticalperiods(takenintoaccountmultiplicity)canbeproducedfromaweakcenteroffiniteorder.Wealsoprovethatitcanhaveexactly2n-2criticalperiodsneartheorigin.

简介：Theoscillationofmulti-timescalesandtheprocessoftransitionbetweencoldandwarmperiodsovermostpartsofChinaandits6regions(theNortheast,NorthChina,ChangjiangRiverValley,SouthChina,theSouthwest,theNorthwest)wereanalyzedwithwavelettransformationandbycomputingthevariancesofthewaveletcomponentsforthetemperaturegradeseriesduringJanuary191ItoFebruary2001,Thepredictionmodelforcoldandwarmperiodshasbeendevelopedandthetrendofcoldandwarmchangeinthecoming10yearsispredicted.Theresultsshowthattheoscillationwithperiodsofaround30-40yearswasthestrongestinthelast100yearsandthe3-yearoscillationinbothwinterandsummerwasalsostronger,especiallyinwinter.Thetransitiontimeofcoldandwarmperiodsintermsofwintermeandidnotcoincidewiththatofannualmean,butthedifferencebetweensummermeanandannualmeanisless.Theprocessesoftransitionof6regionsaresomewhatdifferent,theirmaincharacteristicsarethatthebeginningyearofsignificantwarmingfor1980sto1990swasverydifferentforthesouthernandthenorthernpartofChina.Itisfoundthatthestrongeroscillationwith3-yearperiodcausescoolinginNortheastChinainrecentseveralwinters.Theexperimentalpredictionsshowthatthemodelsusedinthepapercanprojectthemajortransitionbetweenhighandlowtemperatureperiods.

简介：背景：为疼痛地势的Opioid药方正在增加。Codeine是在几个欧洲国家的统治opioid，与在最高的codeine用户之中的挪威。瞄准：决定codeine是否首先为剧烈疼痛被使用或是否有一个药方模式，显示有问题的opioid使用。方法：在挪威的所有药店被强迫在所有分配药方上在公共健康的挪威的研究所电子地提交数据到挪威的药方数据库。因为所有药方与一个独特的人标识符被识别，识别所有药方到一个题目是可能的。codeine的有的药方在2004，2005或2006分配了到他们的所有题目在学习被包括。结果：385190个挪威的人有在2005由于非癌症疼痛分配到他们的codeine的至少一张药方，相应于8.3%的1年的周期的流行。223(58%)778在2005收到了仅仅一张药方，121(31%)025收到了超过一张药方，但是<120定义每日的剂量(DDD)，30(8%)939在120和365DDD之间收到了，7661(2%)在365和730DDD之间，当(0.5%)仅仅1787超过了730DDD的最大的推荐剂量时。在后者组，有benzodiazepines(65%)和carisoprodol(45%)的合作药是流行的。结论：大约一在在挪威的10个成年的人是在2005的分配codeine。一个多数(58%)收到了codeine仅仅一次，为剧烈疼痛最可能，而一个小少数(0.5%)有一个药方模式显示有问题的opioid，使用。

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简介：Thepresentstudyinvestigatesthecharacteristicsofturbulenttransferandtheconditionsfordustemis-sionandtransportusingthedustconcentrationandmicrometeorologicaldataobtainedduringdusteventsoccurringinthespringof2004overtheHuushandakedesertarea.Theturbulentexchangecoefficientsandturbulentfluxesofmomentumandheatarecalculated.Therelationshipsbetweendustflux,frictionvelocity,andwindspeedarealsoexplored.Theresultsshowthatthermalturbulenceisdominantduringdaytimeofnon-dnstydays.Thedynamicturbulenceincreasesobviouslyandthesensibleheatfluxreducesbydifferentdegreesduringdustevents.Thereisanefficientdownwardtransferofmomentumbeforeduststormoccur-rence,andboththedynamicturbulenceandthethermalturbulenceareimportantinthesurfacelayer.Thedynamicturbulenceevenexceedsthethermalturbulenceduringseverednststormevents.Thevaluesofdustfluxvaryintherangeof-5-5,-30-30,and-200-300μgm~(-2)s~(-1)duringnon-dustydays,blowingdust,andduststormevents,respectively.Aslightupwardtransportofdustisobservedduringnon-dnstydays.Thedustfluxgraduallyvariesfrompositivetonegativeduringdnststormperiods,whichindicatesthetimeevolutionofdusteventsfromdustrisingtostablysuspendingandthendeposition.Thedustfluxisfoundtobeproportionaltou_*~3.Thethresholdvaluesofwindspeedandfrictionvelocityareabout6and0.4ms~(-1),respectively.

简介：Purpose:Thepurposeofthisstudywastoinvestigatetheeffectofvariableintensitiesonasimplememoryrecognitiontaskduringexercise.Methods:Twentyactiveparticipantstookpartininitialtesting,afamiliarizationtrialandthenfour60mincyclinginterventionsinarandomizedorder.Interventionsconsistedofnoexercise（control）,constantexerciseat90%ventilatorythreshold（constant）and2trialsthatinitiallymimickedtheconstanttrial,butthenincludedperiodsofhigh(90%VO2peak)andlowintensities(50%VO2peak).Cardiorespiratorymeasuresandcapillarybloodsamplesweretakenthroughout.Ashorttablet-basedcognitivetaskwascompletedpriortoandduring（50and55minintoexercise）eachintervention.Results:Theexerciseconditionsfacilitatedresponsetime（p=0.009）,althoughtheextentofthiseffectwasnotasstronginthevariableexerciseconditions（p=0.011–0.089）.Highintensityexerciseperiodsresultedinsomecognitiveregressionbacktowardscontroltrialperformance.Elevationsincardiorespiratorymeasuresandperiodsofhypocapniacouldnotexplainchangesincognitiveperformance.Conclusion:Changesincognitiveperformancewithvariationsinexerciseintensityarelikelytohaveimplicationsforsportandoccupationalsettings.Thetimingofcognitiveteststoexerciseintensitychangesaswellasuseofshortcognitiveassessmentswillbeimportantforfuturework.

简介：Toevaluatetheinfluenceofosteoporosisonthemiddleandlateperiodsoffracturehealingprocessthroughobservingthehistomorphologicalchanges,honemineraldensityandbiomechanicalpropertiesinovariectomizedrats.Methods:Eighty-fourfemaleSDratsof4monthsoldwererandomlydividedintoosteoporosisgroupandshamoperationgroup,42ineach.Ratsinosteoporosisgroupwereperformedovariectomyoperationwhilethoseinshamoperationgroupweregivenshamoperation.Amidshafttibiafracturemodelwasestablished10weeksafterovariectomy.Tibiaswereharvested2,4,6,12,18weeksafterfractureforbonemineraldensity,histomorphologicalandbiomechanicalevaluation.Results:Comparedwiththeshamoperationgroup,callusbonemineraldensitywas12.8%,18.0%,17.0%lowerinosteoporosisgroup6,12,18weeksafterfracture,respectively(P<0.05);callusfailureloadwas24.3%,31.5%,26.6%,28.8%lowerinosteoporosisgroup,andcallusfailurestresswas23.9%,33.6%,19.1%,24.9%lowerinosteoporosisgroup4,6,12,18weeksafterfracture,respectively(P<0.05).Inosteoporosisgroup,endochondralboneformationwasdelayed,moreosteoclastcellscouldbeseenaroundthetrabecula,andthenewbonetrabeculaarrangedlooselyandirregularly.Conclusions:Osteoporosisinfluencesthemiddleandlateperiodsoffracturehealingintheratosteoporoticmodel.Theimpairmentisconsideredtobetheresultofcombinedeffectsofprolongedendochondralcalcification,highactivatedosteoclastcellandthedecelerationoftheincreaseinbonemineraldensity.

简介：I~nNABU1992/102andmyAHistoryofEshnunna,MariandAssyria....p3,Iproposedthatu-iliya,thefirstkingofEshnunna,waspromotedtothepositionofensi,orking,fromthesonoftheensiasahighrankingscribe.InthepresentworkIhaveinvestigatedthecareersofotherensigovernorsoftheAkkadianandUrⅢperiods.Theevidencefromthisinvestigationwouldindicatethatmanyensigovemorswerepromotedfromsimilarpositionsasscribeswhentheysucceededtothepositionsoftheirfathers,andthattheirfathershadalsobeenscribesandensis,whichmeanstheensigovernorsoftheseperiodswereintellectuals

简介：ＴＨＥＥＡＲＬＹＳＵＭＭＥＲＦＬＯＯＤＰＥＲＩＯＤＳＯＦＳＯＵＴＨＥＲＮＣＨＩＮＡＡＮＤＴＨＥＳＵＭＭＥＲＭＯＮＳＯＯＮＣＩＲＣＵＬＡＴＩＯＮＯＦＥＡＳＴＡＳＩＡ￥ＨｕａｎｇＳｈｉｓｏｎｇａｎｄＴａｎｇＭｉｎｇｍｉｎ黄士松，汤明敏（Ｄｅｐａｒｔｍｅｎ...

简介：EarthquakeeventsfromtheIndonesiansubductionzonerecordedinnorthernAustraliashowalongandhigh-frequencycodaassociatedwithbothPandSwaves.RegionaleventsrecordedbyWarramungaarrayinnorthernAustraliacanseparateoutwavepropagationthroughthemantlebyfocusingonthecoherentsignalacrossthemedium-aperturearray.Mostoftheincoherentwavecomponentsresultfromstructuresinthevicinityofthearraywithsmall-scalelengthsof1–2kmorsmaller.Thecoherentphaseswithrelativelyrapidchangesinwaveformsareassociatedwiththescatteringofseismicwavesbycrustalandmantleheterogeneity,butinsomecasecanberelatedtostructuraleffectsnearthesource.Asthedepthofthesourceincreases,thecoherentportionoftheseismicwavefieldtendstobecomemuchsimpler,whichsuggeststhattheheterogeneitytendstoweakenatdepthwithlarger-scalelength.WecomparethecoherentsignalfeaturesofearthquakesfromtheIndonesiansubductionzonethathaveoccurredinrecentyearswiththoseintheearly1980s,firststudiedbyKennett(PhysEarthPlanetInter47:319–332,1987).Thegeneralcharacteristicsofthecoherentsignalvariationwithdepthinrecentyearsarethesameasthoseobservedin1980s,butthevariationsarelarger.Thischangesuggestsastringervariationinheterogeneitywithdepththanbefore,whichmaybearimportantinformationaboutthedynamicprocessesandevolutionofthecrustanduppermantle.

简介：<正>1IntroductionMostoftheworldwellknowpotashminesaredepositedinmarineenvironment.Regardingtheseriouspotashshortage,nosignificantprogresshasbeenmadeinmarinepotashinChina,whiletheterrestrialpotash

简介：客观：在单个教材扩大(矿泉)和高密度的oligonucleotideDNA数组的帮助下学习在earliergestational皮肤和老鼠的以后的gestational皮肤之间的基因表示的差别理解scarlesshealing的分子的机制。方法：全部的RNA从疤更少(E15)的胎儿的老鼠皮肤被孤立怀孕期(学期=21.5天)的形成andscar(E18)时期。从更早的gestational皮肤(EGS)和以后的gestational皮肤(LGS)的RNA相对地两个都被抄录到cDNAs，然后为由矿泉方法准备杂交探针用荧光灯的dCTP的加入标记。Themixed探针当时是到包含了5的oligonucleotideDNA数组的hybridized代表5705老鼠基因的705根探针。在高度紧的洗以后，这些DNA数组被扫描因为显示差别的荧光灯的信号表示了在2组skin.Results之间的基因：在5705老鼠基因之中，与差别有53基因(0.93%)在EGS和LGS组，之间的表示层次27基因，包括成纤维细胞生长因素2(FGF2)并且follistatinwere起来调整(0.47%)并且26基因是下面调整的(0.46%)在胎儿的皮肤在scarlessperiod对形成疤的时期期间。在EGS的FGF2和follistatin的更高的表情被RT-PCR方法也比那些inLGS揭示。结论：高密度的oligonucleotideDNA数组为调查微分基因表示在提供了一个强大的工具更早并且latergestational胎儿的皮肤。这种技术验证胎儿的疤更少愈合的机制是很复杂化，许多基因表情的变化与胎儿的疤被联系更少的愈合。

简介：在印第安人和华南海季风区域和他们的热机制上的tropospheric温度地的进化从三月在时期期间被比作并且分析1996年6月。结果证明印第安人和华南海夏天季风的发作仔细与在10瑮?祣汣湯捩瘠牯整?湯琠敨爠杩?漠?桴?畋潲桳潩?牵敲瑮映潲?慊畮牡?潴?杵獵t的带的带上的在对流层的季节的温暖被联系

简介：当前的实践使用预兆的模型外推长时期的反应系列基于在中等、弱的地震的远地的记录。然而，系列不足够长，数据经常不是可靠的，它意味着地震设计代码不能精确地为长时期的结构定义地震设计要求。近地的记录罪恶假装聪明的地震主要吃惊有大signal-to-noise比率(SNR)，它为学习长时期的加速反应光谱直到20秒使他们合适。来自在原因的差错的120km以内的246个车站的Theacceleration反应系列统计上在这篇论文被分析。long-periodresponse光谱上的距离和地点条件的影响被讨论，并且扩大系列的形状与在中国的地震设计代码指定的标准系列相比。最后，为到代码的未来修订的建议被建议。

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简介：InordertoimplementthestipulationintheNationalHumanRightsActionPlan(2012-2015)re-quiringtheadditionofnolessthanfivenationalhumanrightseducationandtrainingbasesby2015,theappraisalandselectionmeetingforthesecondgroupofnationalhumanrightseducationandtrainingbaseswasheldonMarch17,2014inBeijing.LeadingofficialsfromrelatedministriesandtheChinaSocietyforHumanRightsStudies(CSHRS),membersoftheappraisalandselectioncommittee

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