共查询到20条相似文献,搜索用时 15 毫秒
1.
《国际泥沙研究》1997,(2)
Onthebasisofpreviousresearchandpractice,anewmodelsandBZYhasbeensuccessfullydeveloped.Experimentshavebeencarriedoutonitsproperties,includingunitweight,initiationvelocity,settlingvelocity,reposeangle,etc.TheexperimentsshowthattheBZYmodelsandhasmanymeritsoverothers,suchasadjustableunitweight,widerangeofparticlesize,particleshapesimilartonaturalsandandstablephysicalandchemicalproperties.Thusithashighvalueforstudy,developmentandextensionforapplication.Stillsomeofitspropertiesneedtobefurtherstudied 相似文献
2.
Thepatterns(inflowplan)ofroughturbulentsteadyflowsinmeanderingstreamsareinvestigatedexperimentally.Theflowcrosssectionisrectangular,theflowwidthisconstant,thechannelbedisflat;theplanshapeissinegenerated.Incontrasttopreviousworks,wherethecomputedflowpatternswereofthesamecharacter,irrespectiveofthesinuosityofthechannel,itisfound,onthebasisofpresentexperiments,thateverydifferentplangeometryofameanderingflowhasitsownflowpicture.Inthecaseof“small"sinuositychannels,theflowconvectivelyacceleratesattheinnerbankbet 相似文献
3.
TheMarkVlietriversystemtransportsbedmaterialandpollutedsuspendedsedimentstotheVolkerakZoomlake,awaterenvironmentofhighlimnologicalvalue.Toprotecttheliving,workingandrecreationareasinthiscatchment,aproperintegratedwatermanagementisessential.Asystematiccontrolandsanitationofthepollutedsedimentsintheriverenvironmentwillhelptostopfurtherdegradationofthewaterecosystemquality.Therefore,atransboundarycollaborationbetweenBelgianandDutchauthoritiesissetuptostudyandsanitatethisinterregionalrivercatchment.Toimprove 相似文献
4.
THEROLEPLAYEDBYWASHLOADDEPOSITIONINTHEFORMATIONOFDIFFERENTRIVERPATTERNSThelowerlayerofthebedmaterialconsistsoftinesandandtheupperlayerconsistsofamixtureofclay(10%)andtinesand(90%).NATURALRIVERSl.ChangeofchannelpatternsalongarivercourseItiscommonthatintheupperPartofanalluvialriverthelongitudinalslopeissteepandtherivercarriesheavysedimentload.Duetothesteepslopeandassociatedhighvelocityclaysettleslittleevenontloodplain.Floodplainorriverhankconsistsofsiltandtinesand.Theriverbehavesasawanderingone.Passingacert 相似文献
5.
Wilhelm Bechteler 《国际泥沙研究》1996,(3)
SEDIMENTATIONINLOWHEADRIVERRESERVOIRS¥WilhelmBechteler(Prof.Dr.-Iug.InstituteofHydrosciences,FederalArmedForcesUniversityMuni... 相似文献
6.
李应平 《地震学报(英文版)》1996,9(3):377-387
Microearthquakeanalysisforhydraulicfrac┐turingprocesYING-PINGLI(李应平)DepartmentofEarth,AtmosphericandPlanetarySciences,Masach... 相似文献
7.
SubhasishDEY 《国际泥沙研究》1997,(2)
Thisbibliographyonpierscouringcoversaperiodfrom1873to1996includingover300references.Althoughtheemphasisinthisbibliographyisonpierscouringassociatedwithmechanismofscour,parametersaffectingscour,timedependentscour,designformulas,modelingandprotectionworks;complementarystudiesonhorseshoevortexatpiersorcylindersarealsoincluded 相似文献
8.
《地震学报(英文版)》1995,(4)
Contributorstothisissue¥//De-YuHUANG(黄德瑜)ProfessoroftheCenterforAnalysisandPrediction,StateSeismologicalBureau.Graduatedfromt... 相似文献
9.
《地震学报(英文版)》1994,(3)
ContributorstothisissueXue-ShenJIN(金学申);AssociateProfessorattheSeismologicalBureauofHebeiProvince.GraduatedfromtheGeophysical... 相似文献
10.
Abdolrahim JAVAHERIAN 《地震学报(英文版)》1994,7(1):23-31
Theoptimumsource-timefunctionforgeneratingfinite-differencesyntheticseismogramsAbdolrahimJAVAHERIAN(InstituteofGeophysics,the... 相似文献
11.
《地震学报(英文版)》1998,(1)
ContributorstothisisuePARVIZMOZAFFARIReceivedhisB.Sc.degrefromtheEarthScienceDepartmentofIranianNationalUniversityin1979.In19... 相似文献
12.
TherelationbetweentheresponsespectrumandthephasediferencespectrumFENG-XINZHAO(赵凤新)andYU-XIANHU(胡聿贤)InstituteofGeophysics,Sta... 相似文献
13.
On unified analysis of uncertainty in seismic hazard assessment 总被引:2,自引:0,他引:2
(胡聿贤,陈汉尧)Onunifiedanalysisofuncertaintyinseismichazardassessment¥Yu-XianHUandHan-YaoCHEN(InstituteofGeophysics,StateSeismolog... 相似文献
14.
EFFECTOFEXISTENCEOFSEDIMENTPARTICLESONTHEENERGYLOSSOFFLOW¥LIUQingquan;CHENLiandLIUDayou(Assoc.ResearchFellow,InstituteofMecha... 相似文献
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王键 《地震学报(英文版)》1994,(4)
(王键)Probabilisticpredictivemodelwithcomplexremembrance¥JianWANG(InstituteofGeophysics,StateSeismologicalBureau,Beijing100081,... 相似文献
18.
段星北 《地震学报(英文版)》1998,11(3):301-312
MacroseismicformulafordetermininghypocentraldepthanditsprecisecalculativemethodXINGBEIDUAN(段星北)4EntrancetoNo.110ofBuilding... 相似文献
19.
Abdolrahim Javaherian 《地震学报(英文版)》1994,7(3):397-407
Griddispersioningeneratingfinite-differencessyntheticseismogramsAbdolrahimJavaherian(InstituteofGeophysics,theUniversityofTeh... 相似文献