GENDER AND TECHNOLOGY DISSEMINATION IN RURAL YUNNAN     

Wang Wanying 《云南地理环境研究》1999,(Z1)

Ｔｈｅｅｆｆｅｃｔｉｖｅｎｅｓｓｏｆｔｅｃｈｎｏｌｏｇｙｅｘｔｅｎｓｉｏｎｒｅｌｉｅｓｎｏｔｏｎｌｙｏｎｈｏｗａｄｖａｎｃｅｄａｎｄａｐｐｒｏ－ｐｒｉａｔｅｔｅｃｈｎｏｌｏｇｉｅｓａｒｅ,ａｌｓｏｏｎｔｈｅｍｅａｎｓｏｆｄｉｓｓｅｍｉｎａｔｉｏｎ．Ｇｅｏｇｒａｐｈｉｃａｌｅｎｖｉｒｏｎｍｅｎｔ,ｌｅｖｅｌｓｏｆｅｃｏｎｏｍｉｃｄｅｖｅｌｏｐｍｅｎｔ,ｃｕｌｔｕｒａｌｃｈａｒａｃｔｅｒｉｓｔｉｃｓａｎｄｇｅｎｄｅｒｃｈａｒａｃｔｅｒｉｓｔｉｃｓ,ｉｎｆｌｕ－ｅｎｃｅｔｈｅｃｈｏｉｃｅｏｆｔｈｅｍｅ…  相似文献   

On the Kinematic Characteristics and Dynamic Process of Boundary faults of the Nansha Ultra-crust Layer-Block     

LIU Hailing⁾  )  SUN Yan⁾  GUO Lingzhi⁾  SHU Liangshu⁾YANG Shukang⁾  ZHOU Di⁾  ZHANG Yixiang⁾) Earth Science Department  Nanjing University  Nanjing ) Open Lab of Geology  Palaeoenvironment of Marginal Seas  South China Sea Institute of Oceanology  Academia Sinica  Guangzhou 《《地质学报》英文版》1999

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Some Investigations on Early Organization of Karst System     

Yu Qingchun 《中国地质大学学报(英文版)》1999,10(4):314-321

Karstsystemsaredynamicsystemsinspontaneoussuc-cessiveevolutionarisenfromtheinteractionbetweenwaterflowandsolub1emedium-Thecircu1ationofwaterprogres-sivelyandcontinuouslymodifiesthestructureofmediumfield,consequentlymodifyingthehydraulicbehaviorofthesystemitself'Someauthors(e.g.,FordandWilliams,l989)believedthatmostcarbonaterockswillbecomeconduitaquifersifsurficialerosionisnegligibleorsufficienttimeisgiven.Karstsystemsfailtodevelopconnectedconduiteitherduetoincompleteextension(becauseinsuffici…  相似文献   

华     

图 　～年华北雨季（～月）°E  °N格点上hPa月平均高度与同期 《高原气象》1999,18(4):34

利用1980～1994年NCEP/NCAR月平均高度场和我国测站降水量资料,通过奇异值分解方法探讨了华北汛期降水与500,200 hPa欧亚中高纬大气环流异常的关系,得到与华北汛期旱涝有关的两类异常环流型。  相似文献   

Discovery of Eoarchean Meta-Dioritic Rocks in Anshan Area, China and Its Geological Significance     

Wan Yusheng  Liu Dunyi  Li Huiming  Yang Chonghui 《中国地质大学学报(英文版)》1999,10(4)

INTRoDUCTIONThe3.8GaBeijiafentrondhjemiticrockwasformedbypartialmeltingofsomeoldercontinentalmaterialintermsofgeochemicalresearches(Waneta1-,l999).Soitisveryim-portanttofindthemoreancientrocksintheAnshanarea.Therecentdiscoveryofthemeta-dioriticrockofEoarchaeanintheDongshanScenicSpotisspecificallyimportantsignifi-canceforit'GEOLOGYANDPETROGRAPHYlntheDongshanScenicSpotoftheAnshancity,thereis.anancientrockbeltbeingmorethanlomwideandstrikingapproximatelyNNW-SSE.Inthebelttherear…  相似文献   

On the Tectonic Evolution of the Kunlun-Karakorum Area, Southern Xinjiang, Northwest China   总被引：5，自引：0，他引：5  

LIU Xun  FU Derong 《Continental Dynamics》1999,(2)

IntroductionTheKtmlundearakorumMountainRangeislocatedinthesouthernpartoftheXinjiangUygUrAutonomousRegion,NorthwestChina,belongingtotheconnectionpaftbetWeentheQinghai-TibetPlateauandthePamirPlateau.So,itstectonicfeaturesandevolutionaryhistoriesarecloselylinkedwiththesetWoplateaus(seefig.l).ThecompIexityofgeologicalstrUctUresinthisarealeadstoalotofcontfoversiesabolltitsevolutionhistoryforalongtime.TheXinjiangGeotTansect,runningacrosstheTianshanMountains,theTarimBasinandtheKunlun-Kara…  相似文献   

'98《中国学术期刊(光盘版)》.专题文献数据库宣布发行     

中国学术期刊 《铀矿地质》1999,15(4):256

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APPLICATION OF THE MULTIGRID METHOD IN NUMERICAL SIMULATION OF SEDIMENT TRANSPORT   总被引：1，自引：0，他引：1  

ZHAO Yongqing  FANG HongWei 《国际泥沙研究》1999,(2)

IINTRODUCTIONThemultigridmethod(Brandt,1988)iswidelyusedinmanydisciplinesandengineeringsubjects,especiallyintheareaofComputationalFluidMechanicsbecauseofitshighefficiencyincomputation.Themultigridmethodhasbeenprovenintheorytobeoneofbestnumericalmethodsforsolvinglinearellipticproblemsbecausetheloadofcomplltationisindirectproportiontothenumberofgridnodes;theconvergentspeedofmultigridmethodisirrelevanttothesizeofgird.Soitissuitableforthenumericalsimulationoffullscaleengineeringprojects.The…  相似文献   

ANALYSIS ON PECULIARITIES OF "92.8"FLOOD EVENT IN THE LOWER YELLOW RIVER     

WANG Gang  XU Mingquan 《国际泥沙研究》1999,(2)

lCOMPOSITIONOFTHE"92.8"FLOODThreerainstormsoccurredfrom7ththrough13,,,August,1992inShaanxiProvince,diStributingfromnorthtosouthinsequence.Therainfallareacoveredtheregionsofintensivesoilerosion,'wheretheaveragerateoferosionis10,000-15',000ton/kmZ'year.Fig.IshowsisohyetsofrainfallintensityinthecatchmentoftheMiddleYellowRiVerdepictingthedistributionoftherainstormsfrom7thto13,,,August,1992(thehydrologicalBureauYRCC,1992).ThecenterofthefirstrainstormwaslocatedattheYikezhaomengPrefec…  相似文献   

FLOW MECHANISMS AND SEDIMENT TRANSPORT IN COMPOUND CHANNELS     

Donald W. KNIGHT 《国际泥沙研究》1999,(2)

IINTRODUCTIONCompoundortWo-stagechannelshavereceivedconsiderableattentioninrecentyearsduetotheirrelevancetofloodstudiesinnaturalrivers,theirsignificanceinunderstandingrivermol'phology,andtheiruseinsomefloodalleviationschemeswherethefloodplainshavebeenartificiallyloweredtoproduceengineeredchannels.ThispaperreviewsworkwhichhasbeenundertakenintheUKFloodChannelFacility(FCF)overthepastdecade.TheACewasbuiltatHRWallingfordin1986,asalargescalenationalfacilityforhydraulicengineeringstUdies.T…  相似文献