简介：这篇论文在在新西兰在坎特伯雷大学被进行的非结构的元素和大楼内容上总结研究。自从坎特伯雷地震的2010-2011系列，在哪个重重地贡献到空闲时间和全面金融损失的非结构的部件和内容的损坏，到大楼里的非结构的部件和内容的地震性能和设计的注意在NZ指数地增加了。这导致了资源的增加的分配到在将实质地在地震期间招致更少的损坏和原因很少空闲时间的大楼里导致更有弹性的非结构的系统的开发的研究。在最后几年里，NZ研究人员在理解并且改善象分区，门面，天花板和内容那样的第二等的大楼元素的地震性能做了重要开发。

简介：TheYuguangbasinisahalf-grabenbasininthebasin-rangetectoniczoneinnorthwestBeijing,locatedatthenorthernendoftheShanxigrabensystem,andtheYuguangbasinsouthernmarginalfault(YBSMF)controlstheformationofthisbasin.AlinearfaultescarpmenthasformedintheproluvialfanonthepiedmontfaultzoneoftheTangshankousegmentofYBSMF.Atrenchacrossthisescarpmentrevealsthreepaleo-earthquakeeventsontwoactivefaults.Onefaultrupturedatabout9kaforthefirsttime,andthenfaultedagainatabout7.3ka,causingtheformationandsynchronousactivityofanotherfault.Finally,theyfaultedforthethirdtime,butwecannotdeterminethefaultingtimeduetothelackofrelevantsurfacedeposition.Theaccumulativeverticaldisplacementofthesethreeeventsisabout8.1m.Weestimatethattheaveragerecurrenceperiodofthepiedmontfaultisabout1.7ka,andtheaveragesliprateofthepiedmontfaultisabout1.6mm/a.Wealsoestimatethereferencemagnitudeofeacheventaccordingtotheempiricalformula.

简介：在为低温度、浅、高的冰点油水库折断处理期间，首要的问题是由注射冷液体克服uncompleted故障，折断液体的uncompletedcleanup和形成的冷损坏。避免那些问题，采用被建议一新包含了在这篇论文描述了的产生热的水力的断裂液体系统。第一，二种化学产生热的系统我们再学习，NH_4Cl-NaNO_2系统被选择。根据系统的反应特征，草酸酸被选择为反应的催化剂并且包含由阶段分离方法把乙醇纤维素和石蜡用作涂层材料。有折断液体的hydroxypropyl-guar的NH_4Cl-NaNO_2-encapsulated草酸酸的相容性也在论文被讨论。结果证明包含的水力的断裂液体包含了heat-generatingagents兔好稳定性和相容性。当断裂的液体包含2.0摩尔·L~时(-1)NH_4Cl-NaNO_2,0.93%每硫酸盐包含了草酸酸和0.08%铵，山峰温度罐头到达78.0℃和剩余液体的粘性是在4个小时以后的3.12mPa·s。

简介：Earthquakeengineeringresearchanddevelopmenthavereceivedmuchattentionsincethefirsthalfofthetwentiethcentury.Thisvaluableresearchpresentedahugestepforwardinunderstandingearthquakehazardmitigation,whichresultedinappreciablereductionoftheeffectsofpastearthquakes.Nevertheless,the2011Tohokuearthquakeandthesubsequenttsunamiresultedinmajordamage.Thispaperpresentsthetimelineofearthquakemitigationandrecovery,asseenbytheauthors.Possibleresearchdirectionswheretheauthorsthinkthatmanyopenquestionsstillremainareidentified.Theseareprimarilybasedontheimportantlessonslearnedfromthe2011Tohokuearthquake.

简介：<正>1IntroductionThemainproductionofYabulaisaltlakewasoriginalsaltandrecycledsaltmanyyearsago.Afterdecade’sproduction,thesalelakeresourceismoreandmoredeficient.Glauber’ssaltandmagnesiumsaltareconcentratedinbrinenow.Itcouldaffectthequalityofthesalt.Inrecentyears,researchhaddonemuchworkto

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简介：Thispaperhighlightspasteffortsindevelopingerosionprocessconceptsthatleadtothedevelopmentofthecurrentprocess-basederosionpredictionmodel,i.e.,WEPP.Recentprogressincludesthedevelopmentofamultiple-boxsystemthatcansimulatehillslopehydrologicconditions.Laboratoryproceduresenablethequantificationofnear-surfacehydrologiceffects,i.e.,artesianseepagevs.drainage,onthesoilerosionprocessandsedimentregime,flowhydraulics,andsedimenttransportanddepositionprocesses.Theserecentfindingsimprovesoilerosionscienceandprovidenewerosioncontrolstrategiesthatmayhaveadditionalenvironmentalbenefitsrelativetothetraditionalerosioncontrolpractices.Thepaperalsodiscussesthepotentialimpactsoftheerosionprocessonerosionmodeldevelopmentandfutureresearchdirectionsofsoilerosionprocessresearchandmodeldevelopment.

简介：Jiashi和它的包围区域由许多结构的地区组成。在Jiashi和它的包围区域使用59中等强烈的地震的焦点的机制解决方案，并且把这些与计算相结合系统簇和压力领域倒置结果，我们在不同时间和不同区域分析了压力领域的发展特征。结果如下：在Jiashi的地震主要是strike-slip.However，Kalpin块的那些主要是反向的事件，显示出地区性的特征是的明显的thrusting.The与另外的区域不同。地区性的主要压力领域的方向在NS附近。在不同构造背景下面，然而，压力地的方向是不同的。主管的方向压缩应力在在Kashi-Wuqia区域的NS附近。但是在有M7.0的3地震前后，到NS然后到有时间过程的NE的从NW的动态进化被观察。Kalpin块很长时间在NW方向由一块一致压力地被统治了。然而，Jiashi区域的压力地的方向是NE。自从1996，地区性的压力地的方向显然变化了。P轴的方向向NE被偏斜，并且plunge角度增加了。结果清楚地在不同构造环境显示出压力地的分发模式的地区性的特征和变化。

简介：TheInternationalCentreonGlobal-scaleGeochemistry(ICGG)isaresearchorganizationtoprovidesystematic,longtermandauthoritativeglobalforsustainingnaturalresourcesgeochemicalobservationdataandenvironmentsintheworld.

简介：ThreelogarithmiclinearequationsbetweenDMeV/Land[mNaCl],andtherelationshipofDMeV/LversusF/ClorK/NamoleratioshavebeenestablishedbytheexperimentsofthepartitioningofPbandZnbetweengraniticsilicatemeltandaqueousfluid.Theseresultshavebeenusedtoquantitativelystudysomeessentialproblems,suchasthepossibilityanddegreeofPb-Znmineralizationinthesystemofgraniticmagmaandhydrothermalfluid,andtheinfluenceoftherelativecontentsofalkaliandvolatilesonthePb-Znmineralizationinthesamesystem.Somenewpointshavebeenputforwardinthispaper.

简介：Thedynamicshearmodulusratioanddampingratioofsandygravelareimportantparametersfortheseismicresponseanalysisofvalleygeomorphicsites,whichhaveanimportantimpactonthedeterminationofdesigngroundmotionparameters.Inthispaper,thedynamictriaxialtestofsandygravelshasbeenperformedbasedontheprojectoftheShangluoSeismicMicrozonation.Combinedwiththeotherresultsofsandygravel,therecommendedresultsofslightlydense,mediumdenseanddensesandygravelwereobtained.Bybuildingthetypicalsitemodel,theinfluenceofthedynamicshearmodulusratioandthedampingratiouncertaintyontheseismicresponseofthesiteisstudied.Theresultsshowthattheuncertaintyoftheaverageofthedynamicshearmodulusratioandthedampingratio±1timesthestandarddeviationhaslittleeffectonthepeakaccelerationofthesandygravelsite,andtherationalityofthegroupingandstatisticalresultsisexplained.Underdifferentprobabilitylevels,thechangeintheshearmodulusratioanddampingratioleadstoasignificantdifferenceinthehighfrequencyresponsespectrum.Theresponsespectrumof0.04-0.1srangesfromabout20%,butithaslittleeffectonthelongperiodspectrumofmorethan1.0s.Thestudyofdynamicshearmodulusratioanddampingratioofsandygravelhastheabilitytoimprovethereliabilityofthedesigninggroundmotionparameters.

简介：Ａｐｒｅｌｉｍｉｎａｒｙｒｅｓｅａｒｃｈｅｓｔａｂｌｉｓｈｉｎｇｔｈｅｐｒｅｓｅｎｔ－ｔｉｍｅｉｎｔｒａｐｌａｔｅｂｌｏｃｋｓｍｏｖｅｍｅｎｔｍｏｄｅｌｏｎｔｈｅＣｈｉｎｅｓｅｍａｉｎｌａｎｄｂａｓｅｄｏｎＧＰＳｄａｔａＳＨＵＯ－ＹＵＺＨＯＵ１）（周...

简介：ThisstudyinvestigatedtheflowcharacteristicsalteredbyJangBogoAntarcticResearchStationusingcomputationalfluiddynamics(CFD)modeling.ThetopographyandbuildingsaroundJangBogoStationwereconstructedwithcomputeraided-designdataintheCFDmodeldomain.Wesimulated16caseswithdifferentinflowdirections,andcomparedtheflowcharacteristicswithandwithoutJangBogoStationforeachinflowdirection.Thewinddatarecordedbythesite’sautomaticweatherstation(AWS)wereusedforcomparison.WindroseanalysisshowedthatthewindspeedanddirectionaftertheconstructionofJangBogoStationwerequitedifferentfromthosebeforeconstruction.Wealsoinvestigatedhowvirtualwindfenceswouldmodifytheflowpatterns,changingthedistanceofthefencefromthestationaswellastheporosityofthefence.Forwesterlyinflows,whentheAWSwasdownwindofJangBogoStation,thedecreaseinwindspeedwasmaximized(-81%forwest-northwesterly).ThewindspeedreductionwasalsogreaterasthedistanceofthefencewasclosertoJangBogoStation.Withthesamedistance,thefencewithmediumporosity(25%–33%)maximizedthewindspeedreduction.Theseresultssuggestthatthelocationandmaterialofthewindfenceshouldbeselectedcarefully,orAWSdatashouldbeinterpretedcautiously,forparticularprevailingwinddirections.

简介：Since2011,certainadvanceshavebeenmadethroughtheresourceinvestigation,metallogenesisresearch,miningsupervisionandenvironmentalprotectionofion-adsorptiontyperareearthelement(REE)depositinSouthChina.Firstly,someprogresshasbeenmadeinREEprospectinginJiangxi,Guangdong,GuangxiandYunnan.REEdepositsarenotonlyfoundwithintheweatheringcrustsofgranitesandfelsicvolcanicrocks,butalsowithintheweatheringcrustsofepimetamorphicrocksandbasicmagmaticrocks.Secondly,themethodsofexploration,delineatingorebodiesandcalculationofreserveshavebeenimproved,whichintuitivelyreflectthethickness,REEcompositionandvalueofweatheringcrust.Thirdly,therelationshipbetweenREEsandweatheringdegreeandtheruleofdistribution,migrationandenrichmentofREEsintheweatheringprofilewassummarizedthroughtheanalysisofbigdata,whichcanpredictthemetallogenetichorizonofREEs.Fourthly,amethodforquick,accurateanddynamicinvestigationoftheREEdeposithasbeenestablishedbyusinghighresolutionremotesensingtechnology.Finally,therelationbetweentheproductionstatusofREEminesandwaterpollutionhasbeenrevealedbasedonlong-termhydrochemicalmonitoringdataofriversandwellsinminesandsurroundingareas.

简介：Dependingonanalyzingtheabuseofequivalentweights,asetofself-containedtheorysystemonrobustestimationbasedonequivalentvariance-covarianceisestablished,whichincludesρfunction,φfunction,equivalentvariance-covariancefunction,influencefunctionandbreakdownpoint.Andanexampleisgiventoverifythattherobustmodelsproposedinthispaperarereliableandcorrect.

简介：BytheaftershockfrequencyestimationmethodbasedonthecalculationofcoseismicstaticCoulombstresschangesandrate-andstate-dependentfaultconstitutivelaw,wecalculatethefrequencyof"direct"aftershocksoftheWenchuanearthquakerelatedtocoseismicstaticCoulombstresschangesinitsaftershockzoneandtheareasnearby.Itshowsthatthefrequencyissignificantlylowerthanthetruthinthemainrupturezone,especiallyinthesouthernrupturezone,duetothedecreaseofstresslevelontheruptureplaneofthemainshockresultingfromcoseismicCoulombstresschange.ThestudyalsoshowsthattheeffectoftheCoulombstresschangeonthedurationofaftershockactivityisassociatedwiththelowerlimitmagnitude.Thedurationisabout15-16monthsforaftershocksaboveML4.0,andcloseto60monthsforaftershocksaboveML3.5.Inthisperiod,theratioofthe"direct"aftershockscausedbycoseismicCoulombstresschangerangesbetween44.7%to48.6%,whichsuggeststhat,eveninthe"effective"periodofcoseismicCoulombstresschanges,abouthalfoftheaftershocksonthemainshockruptureplaneareindependentofcoseismicCoulombstresschanges.Itispointedoutthatthoseaftershocksmayberelatedtotheaftersliportheviscoelasticrelaxation,whicharetimedependentcases.

简介：作为在地震学，液体，热和精力的基本问题，地震附近的分发在地震产生期间采购原料是地震学者的担心的领先的题目。当前，越来越多的研究在地震来源区域附近显示出液体，它在地震准备和产生的过程起一个重要作用。然而，在在深外壳中的液体的来源上有可观的争吵。至于在地震来源区域附近的热的问题，不同模型被建议了向压力热流动解释悖论。在他们之中，动态变弱模型被认为是解决热流动悖论问题的关键。在大地震以后，精力分发是直接与磨擦热有关。立即深实现具有及时、重要的实际意义钻调查在地震产生期间获得液体，磨擦热和精力分发的理解的在里面地点。在液体，热和精力分发研究的最近的国际进步在将为地震准备和出现的理解带重要灵感的这篇论文被考察了。

简介：AsimulationofclimatechangetrendsoverNorthChinainthepast50yearsandfuture30yearswasperformedwiththeactualgreenhousegasconcentrationandIPCCSRESB2scenarioconcentrationbyIAP/LASGGOALS4.0(GlobalOcean-Atmosphere-Landsystemcoupledmodel),developedbytheStateKeyLaboratoryofNumericalModellingforAtmosphericSciencesandGeophysicalFluidDynamics(LASG),InstituteofAtmosphericPhysics(IAP),ChineseAcademyofSciences(CAS).Inordertovalidatethemodel,themodernclimateduring1951-2000wasfirstsimulatedbytheGOALSmodelwiththeactualgreenhousegasconcentration,andthesimulationresultswerecomparedwithobserveddata.Thesimulationresultsbasicallyreproducethelowertemperaturefromthe1960stomid-19?0sandthewarmingfromthe1980sfortheglobeandNorthernHemisphere,andbettertheimportantcold(1950-1976)andwarm(1977-2000)periodsinthepast50yearsoverNorthChina.Thecorrelationcoefficientis0.34betweensimulationsandobservations(significantatamorethan0.05confidencelevel).TherangeofwintertemperaturedeparturesforNorthChinaisbetweenthosefortheeasternandwesternChina'sMainland.Meanwhile,thesummerprecipitationtrendturningaroundthe1980sisalsosuccessfullysimulated.Theclimatechangetrendsinthefuture30yearsweresimulatedwiththeCO_2concentrationunderIPCCSRES-B2emissionscenario.Theresultsshowthat,inthefuture30years,wintertemperaturewillkeepawarmingtrendinNorthChinaandincreasebyabout2.5℃relativetoclimatemean(1960-1990).Meanwhile,summerprecipitationwillobviouslyincreaseinNorthChinaanddecreaseinSouthChina,displayingasouth-deficit-north-excessivepatternofprecipitation.

简介：ＰｒｅｌｉｍｉｎａｒｙｄｉｓｃｕｓｉｏｎｏｎｅａｒｔｈｑｕａｋｅｐｒｅｄｉｃｔｉｏｎｒｅｓｅａｒｃｈＷｈｅｔｈｅｒｉｔｒｅｌｉｅｓｏｎｅｘｐｅｒｉｅｎｃｅｏｒｄｅｔｅｒｍｉｎａｃｙＬＩＵＱＩＡＯＷＡＮＧ（王六桥）ＳｅｉｓｍｏｌｏｇｉｃａｌＢｕ...