简介：Theparametersofhypocentrallocationareimportantfundamentaldataforthestudyofseismologyandtheearthinteriorphysics;amongthem,thefocaldepthisaveryimportantonebutcanhardlybemeasuredwithhigherprecision.Withtheincreaseofseismicstationsinnumber,theheighteningofobservationqualityandtheimprovementofdeterminationmethod,suchasituationhasbeenchangedmuch.Inthispaper,theresultsofhypocentrallocationandre-locationby7small-aperturedigitalseismicstationnetworksatTangshan,ZhangbeiandHuailaiofHebeiProvince,DatongofShanxiProvinceandJianchuan,LuquanandYao＇anofYunnanProvinceareused.Usingtheseresultstogetherwiththoseoffocaldepthinversionbyfar-fielddataofsomeindividuallargeshocksincorrespondingareasandthosere-determinedbytheLinfentelemeteredseismicnetworkofShanxiProvince,acomparisonwiththeresultsoffocaldepthdeterminationinthepastearthquakecataloguesismade.Itisfoundoutthatthefocaldepthsdeterminedbythesmall-apertureseismicnetworksarebasicallydistributedintherangefromtheearthsurfacetoten-oddkilometersunderground.Incontrast,thefocaldepthsdeterminedinthepastaremostlydistributedatthedepthrangefromtheearthsurfaceto30kmunderground.Besides,thereisadifferenceof50%to100%betweentheaveragevaluesofthetwocases,whichisquiteanobviousone.Fromtheresultofanalysis,itisconsideredthattheresultsdeterminedbythesmall-apertureseismicnetworksmaybeclosertotherealityoffocaldepthsdistribution.Thatistosay,earthquakesintheabove-mentionedareasshouldbedistributedintheshallowpartofthecrust.Thecausesthatleadtotheabovesituationarediscussedpreliminarily,andsomesuggestionsandmeasuresforimprovingtheprecisionoffocaldepthdeterminationareputforward.

简介：Stabilityparameters(Monin-ObukhovlengthL,gradientRichardsonnumberRiandbulkRischardsonnumberRi),whichareapplicableinurbanenvironment,werediscussedforwaysofcalculatingclassificationstandards.Gradientobservationsfroma325-mmeteorologicaltowerinBeijingareusedtocategorizeRibbasedonthreedifferentstandardsofstabilityproposedbyD.Golder,IrwinandHoughton.TheresultsshowthatitisrelativelyreasonablefortheregionofBeijingtoapplytheclassificationstandardbyIrwin.

简介：TherearelargevolumesofthePhanerozoicgranitoidrocksinChinaandneighboringareas.Inrecentyears,numerousnewandpreciseU-Pbzirconageshavebeenpublishedforthesegranitoids,anddefinemanyimportantmagmaticevents,suchasca.500MagranitoideventsintheWestJunggar,AltaiorogensintheNWChina,andQinlingorogeninthecentralChina.TheseagesaccuratelyconstrainthetimeofimportantearlyPaleozoic,latePaleozoic,earlyMesozoicandlateMesozoicmagmaticeventsofthenorthern,central,western,southernandeasternorogenicMountainsinChina.ThereoccurvarioustypesofgranitoidsinChina,suchastalc-alkalinegranite,alkaligranite,highly-fractionatedgranite,leucogranite,adakite,andrapakivigranite.RapakivigranitesarenotonlytypicalProterozoicasintheNorthChinaCraton,butwerealsoemplacedduringPaleozoicandMesozoicintheKunlun-Qinlingorogen,apartoftheChinaCentralOrogenicBelt(CCOB).Nd-HfisotopictracingandmappingshowthatgranitoidsinthesouthernCentralAsianOrogenicBelt(CAOB)inChina(ortheNorthernChinaOrogenicBelt)arecharacterizedpredominantlybyjuvenilesources.Thejuvenilecrustinthisorogenicdomainaccountsforover50%byarea,distinguishingitfromotherorogenicbeltsintheworld,andthoseincentral(e.g.,Qinling),southwestemandeasternChina.Basedonalargeamountofnewagedata,apreliminarygranitoidandgranitoid-tectonicmapsofChinahavebeenpreliminarilycompiled,andanevolutionaryframeworkofPhanerozoicgranitoidsinChinaandneighboringareashasbeenestablishedfromtheviewofassemblyandbreakupofcontinentalblocks.Researchideasongranitoidtectonicshasalsobeenproposedanddiscussed.

简介：ThispaperfirstbrieflylooksbackonthehistoryofcensusGISaroundtheworld,andthensummarizessomepreponderancesofdevelopingurbancensusGISinChina.Andthenathree-tierconstructionarchitecturefortheurbancensusGISisproposed.Finally,usingtheillustrationofthecensusdataofGuangzhoucity,thepaperanalyzesandelaboratessomeissuesontheurbancensusGISdesigning,suchasdatamanagement,datawarehousebuilding,anddataanalysis.

简介：Thispaperdiscussessomemechanicalconceptsthathavebeenlargelyappliedtostructuralgeologyandtectonics,andaddressestheproblemsandmisunderstandingsinuseofthesemechanicalterms.Thepurposeistostimulatetheinterestsforstructuralgeologistsinusingthemechanicalprinciplesandmethodscorrectlytosolvethegeodynamicproblems.

简介：ThepaperstudiedthedistributionlawofXinjiang’sheavyrainintime-area-depthbytheoreticalexpressiondeducedfromtheentropymaximumprincipleandfoundsomeregularitiesofheavyrainfallinXinjiangbasedonanalyzing32-yearobservationaldatafromabout400hydrologicalandmeteorologicalstations.IthaspracticalsignificanceforstudyingXinjiang’sheavyrainfall,designingwaterconservancyandreducingfloodcatastrophecausedbyheavyrain.

简介：ＳＴＵＤＹＯＮＳＯＭＥＭＥＴＥＯＲＯＬＯＧＩＣＡＬＰＲＯＢＬＥＭＳＩＮＨＨＧＡＧＲＩＣＵＬＴＵＲＡＬＰＲＯＤＵＣＴＩＯＮ￥ＧａｏＳｕｈｕａ（高素华），ＧｕｏＪｉａｎｐｉｎｇ（郭建平）．ＡｎＳｈｕｎｑｉｎｇ（安顺清）ａｎｄＷａｎｇＳｈｉｌｉ（王石立）Ｓ...

简介：-Inthispaper,someproblemsinthedesignofthebreakwaterforDayaowanportareaaredescribedincludingtheoptimalselectionofthelayoutplanofthebreakwater;theselectionofstructuraltypeofthebreakwater,theconcreteblocktypeforbankprotection,thereversedL-shapeparapet;theelevationoftheparapet;thestabilitytestofthewholerevetment;aswellaswaveabsorbingeffectsoftheperforated

简介：

简介：ThediagnosticmodelofthecumulusconvectionproposedbyYanaietal.(1973)wasappliedtotheatmosphereovertheTibetanPlateau,andusedtoestimatetheverticalmassflux,entrainmentanddetrainment,excesstemperatureandmoisture,liquidwatercontent,andcondensationandprecipitationratesofhighlandcloudclusters.TheresultsillustratedthatincloudsovertheTibetanPlateau,thewatervaporcondensationrate,liquidwatercontent,andefficiencyoftheraingenerationprocessarelessthanthoseinthetropics(representedbytheMarshallIslandsregion).Therefore,thecondensationallatentheatreleasedovertheTibetanPlateau,overall,ismuchsmallerthanthatinthetropics.Thewatervaporandliquidwaterdetrainmentfromshallownonprecipitatingcumulusclouds,andtheirentrainmentintodeepcumulusclouds,serveasagrowingmechanismforthedeepprecipitatingcumulustowersovertheTibetanPlateau.Itshouldbenotedthatthereisastrongerdetrainmentofliquidwater

简介：Thispaperreviewsthedynamicsofoceanpipesaspiratingfluidandpresentsaselectivereviewoftheresearchundertakenonit.Itfocusesontheequationsofmotion,fluid-solidinteractionattheinletofthefreeendofthepipe,thestabilitymechanismofpipesaspiratingsteadyfluid,etc.Inparticular,someunresolvedorpartlyresolvedissuesontheseimportantaspectsarediscussed.Finally,thepromisingfuturedevelopmentinthisareaisdiscussed.

简介：Thetransitionalspanisaspecialenvironmentfordeposits.Takingpeat,oil-gas,metallicdepositsasexamples,thispaperdiscussesthespatial-temporaltransitionalcharacteristicsofmineralizationintransitionalregions,pointsouttheimportanceofthemineralizationintransitionspans,andanalysestheirdynamicsfinally.

简介：TheanalysisoftheSPECTRUM(SpecialExperimentConcerningTyphoonRecurvatureandUnusualMovement)dataindicatesthatthestructureofrecurvingtargettyphoons9015(Abe),9019(Flo)and9020(Gene)atdifferentstagesofmovingprocessesshoweddifferentmotionfeatures.Ondifferenttimescales,temporalvariationsoftyphoonstructureandmotionspeeddisplayeddifferentfeatures.

简介：埃及被serpentinites的宽出现描绘，特别地在东方沙漠的中央、南部的部分。有几合作影响serpentinites的因素用作装饰石头。这些因素包含矿物学的特征(包括的矿物成分和微观结构参数)，物理性质和机械properties.Antigorite是一种必要serpentinite矿物质与chry-sotile.Talc的次要的数量，碳酸盐(菱镁矿和白云石)和透闪石是主要联系矿物质。象滑石和碳酸盐(白云石和菱镁矿)那样的联系矿物质的质量和数量影响用作装饰石头的serpentinites的性质。碳酸盐对捱过抵抗，但是在内部使用受不了酸的除垢剂，而有滑石的一个高内容的serpentinites在外部脸上使用了在体积和作为结果的快速的降级经历增加。学习serpentinites被相对小的粒子大小与foliated质地，低潮吸收，低孔，和高磨损抵抗描绘。在学习的样品，单轴的抗压强度(UCS)在89和189MPa之间变化，与到贝尔(1992)的分类的152MPa.According的一般水准，样品No.B8在力量很高当时在力量的剩余的高度。

简介：BasedonPb-Pbisochrondataofmorethan40Precambrianpolymetallicdeposits,theauthorsconsiderthattherearefourmineralizationperiodsforthePrecambriancopperdepositsinChina,andthemajorcopperdepositswereformedatabout1800Ma;therearethreemineralizationperiodsforgolddepositsformedfromArchaeantoProterozoic.BystudyinghundredsofleadisotopedatafromsomeMesozoiccontinentalsubvolcanicCuandAgpolymetallicdepositsandfine-disseminatedgolddeposits,theauthorsfoundthatthecalculationbasedontheleadsingle-stageevolutionmodelortwo-stageevolutionmodelcannotgivethetrueore-formingagesbutcanprovidemoreinformationaboutmineralizationandmaterialsourcesofthedeposits.

简介：ＳｏｍｅｇｅｏｌｏｇｉｃｓｉｇｎａｔｕｒｅｓｏｆｆａｕｌｔｃｒｅｐｉｎｔｈｅｃｏｎｔｉｎｅｎｔａｌａｒｅａｏｆＣｈｉｎａＨＯＮＧＦＡＸＩＡＮＧ（向宏发）ＳＨＵＮＭＩＮＧＵＯ（虢顺民）ＷＡＮＸＩＡＺＨＡＮＧ（张晚霞）ＢＩＮＧＬＩＡＮＧＺＨＡＮ...

简介：根据我们关于忍受卫星的激光回射器数组的设计研究，一些建议在怎么生产能让我们测量在月亮鈥檚表面上照亮点和unilluminating区域的新阿波罗LLRA上被建议。这些建议是：为了控制二面的角度，在卤以内抵消0.1鈥吗？使用立方体角落棱柱的透明的脸的更大的孔；为了调查怎么外面分开，阿波罗鈥檚从混合横梁在LLR系统上撞击反映了激光。

简介：Inthisarticle,itispointedoutthattheinformationnon-modifiabilityandinformation“fidelity”involvedin“informationdeterminacy”isamomentousrevolutioninepistemologicalconception.Byeliminatingtheconstrictionofquantitativestability,thereexistpeculiarinformationandperiodicityundernonlinearinstability.ThecommensurabilitybyWengWenbomaybeexplainedbyapplyingspecialcharactersofpeculiarinformation.Onevolutionofsubstance,thegeneralrulesforquantitativeanalysescannotbeextendedintoprocessofpeculiarinformation.Therefore,thecontemporaryscienceshavenotresolvedsomeimportantproblemsinevolutionofsubstancesuchas“time”,peculiarity,non-inertialsystem,andfabricatedinformationinquantitativeanalyses.Thenaturalcharactersandnon-modifiabilityofinformationhaveessentiallyprovedthatitisanepistemologicalmisunderstandingtoconsidertheinformationanalysisinmodern“informationscience”thesameasquantitativeanalysisinthecontemporarysciences.Thatis,“information”cannotbeidenticalto“quantity”.

简介：ItwasagreatpleasuretobeinbeautifulFlorencewithover7,000geoscientstswhohadregistered.Iwasverymuchinvolvedintwosymposiaongeoethicsandgeoeducation.Theybothwentverywell,butitwasinterestingthatthegroupswhocameweresmall.Inourdiscussionapointofagreementwasthatwemustattackthegreatglobalproblemssuchasvastmalnutritionandthefactthatmostoftheworldpopulationhasproblemswithfoodandwaterresources,notgold!,

简介：Thesediment-hosteddisseminatedgolddepositsintheOinlingregionareofsedimentation-slight-metamorphicoriginsuperimposedbyhydrothermalreworkingatmoderate-lowtemperaturesandarewellcomparablewiththetypicalCarlingolddepositsintheUnitedStates.Inviewoftheconfusingconceptconcerningthe“sediment-hosted”and“Carlin-type”golddeposits,theauthorsproposethattheterm“sediment-hostedgolddeposit”shouldbeusedinabroadsensewhichencompassesatleastthefoursubtypes,i.e.,theCarlintype,themetamorphicfineclastictype,thehydrothermalsedimentarytypeandtheveintype.Inoterwords,the“Carlin-type”shouldnotbeusedasasynonymfor“sediment-hosted”butisrecommendedasasubtypeunderthegeneralcategoryof“sediment-hostedgolddeposits”