简介:InthispapertheshortagesofexplanationsonthecauseofTangshanearthquakesin1976arepointedout.Earth-quakephenomenaaroundTangshanearthquakesareanalyzedsynthetically,itisnoticedthatthemostprominentseismicphenomenonareseismicdensenessofML=4,butML=3andML=2isnotactiveinthesametemporal-spatialinterval,whichoccurredfrom1973to1975.Wethinkthatthephenomenonshouldcorrespondtorelativeintegrityofthecrustmediumunderhigherregionalstress.AssumingthattheseismicityincircumjacentregioncouldreflectthejostlingextentofsurroundingplatestowardtheChinesemainland,itisinferredthattherearemulti-dynamicalprocessesinNorthChinaregionin1970s,whichsupplythebasicdynamicalsourcetoTangshanearthquakes.Amodelofmulti-dynamicalprocessesandlocalweakeningofthecrustisproposedtoexplainthecauseofTangshanearthquakes.ThismodelcouldunpuzzlemanyseismicphenomenarelatedtoTangshanearthquakes.
简介:ColorfulCauseGearedtoHelpDevelopTibetZHIXIA,YONGLEInthegoldenautumnmonthofAugust,LiRuihuan,chairmanoftheChinesePeople'sPoliti...
简介:ForewordTheyear2003wasanimportantandunusualyearforChina’sdevelopment.Itwasalsoayearofgreat,landmarksignificanceforprogressinhumanrightsinthecountry.In2003,theChineseGovernmentdidagoodjobintacklingthesuddenoutbreakofSARSandcurbingitsspread,aswellasintacklingfrequentnaturaldisasters.Persistingintakingeconomicconstructionasitscentraltask,andstrivingfor
简介:China’saccessiontotheWorldTradeOrganization(WTO)representsastrategicsteptakenbythecountrytoopenitselfevenwidertotheoutsideworld,indicatingitsreadinesstogetinvolvedintheprocessofeconomicglobalization.
简介:<正>Hungary’sdomesticeconomicsystemreform,i.e.thefoundingofitsneweconomicsystemwasthehasisofaccessiontoGATT,solet’sreviewtheeconomicreforminHungaryfirst.Beginingin1968,Hungary’seconomicreformwascarriedoutundertheconditionofrapiddevelopmentofworldeconomy,cheapenergyandrawmaterialsandthepros-
简介:The19thNationalCongressoftheCommunistPartyofChinawasanepoch-makingPartyCongress.TheCongresssolemnlydeclaredthat'socialismwithChinesecharacteristicshasenteredanewera'.WiththemajorchangeinChina’shistoricalposition,thecauseofhumanrightsinChinahasalsoenteredaneweraofsocialismwith
简介:Thereportofthe19thCommunistPartyofChinaNationalCongressisadocumentwithanimportanthistoricalpositionanduniquehistoriccontributioninthehistoryofthePeople’sRepublicofChinaandthegreatrejuvenationoftheChinesenation.Thereportcanberoughlydividedintotwoparts:generalprinciplesandsubstantialcontent.Thegeneralprinciplescomprisefourissues,whicharejudgmentof
简介:Thisstudyexploresreasonsfortherandomoccurrenceofstampingcracksduringtheproductionofpureironmagneticshieldingcovers.Scanningelectronmicroscopyandenergyspectrumareusedtoobservecrackswithinparts,andresultsshowsignificantbrittlefracturemorphologywithchunksofmanganesesilicateandaluminumsilicateinclusionspresentinthefracturesurface.Thechemicalcomposition,mechanicalproperties,andmicrostructurearealsoanalyzedforacorrespondingbatchofcoldrolledpureironsheet.Theoxygencontentofthematerialisfoundtobehigh,resultingintherandomdistributionofalargeamountoflongchainmanganesesilicateandaluminumsilicateinclusionsalongtherollingdirection,whichcorrespondstoinclusionsfoundonthefracturedsurface.Thestampingcracksarethusassumedtobecausedbytherandomlydistributedchainofinclusionswithinthecoldrolledsheet.Itissuggestedthattheamountofdeoxidizerusedshouldbemorecarefullycontrolledtodecreasetheinclusioncontentsandtothusavoidtherecurrenceofsuchdefects.
简介:IllegallogginghasbecomeaseriousprobleminforestmanagementinASEAN.Inthepaper,theillegalloggingstatusinASEANisintroduced,anditissurethatIndonesia,Malaysia,Brunei,Laos,MyanmarandCambodiaareproductioncountries,ThailandandVietnamaretheprocessingcountries,andPhilippines,Singaporeareconsumercountriesinthewholesupplychainofillegallogging.Aswell,thetradeflowsofillegalforestproductsofASEANarechecked,thecauseofillegallogginganditsproducingimpactsareassessed.Totackleillegallogging,onefeasiblewayistodesignecologicalsupplychaintosuperviseillegalloggingprocess,andundertheconceptofecologicalsupplychain,theproductioncountries,processingcountriesandconsumercountriesshouldtakeactionstogether.Non-ASEANcountriesshouldimprovebordercontrol,introducepublicprocurementpolicies,promotemarket-basedinstruments,andstrengtheninternationalcooperation.ForASEANcountries,theyshouldestablishcooperationmechanismswithintheregion,takeaunifiedaction,increasegovernancecapacityandpromotelegalityverificationorsustainabilitycertification.
简介:Byanalyzinghigher-accuracylocationdataoftheTangshanearthquakesequence,acleardistributionpatternofthreeaftershockbeltsintheNE,NWW,andNWdirectionsofhasbeenobtained.TheanalysisrevealsthreeruptureplanesofstrongeventsofMS7.8,MS7.1andMS6.9inthesequence.Itindicatesthatthecomplexpatterniscloselyrelatedtotheearthquakesource,andtheNE-,NWW-andNW-trendingregionalfaultzones,whichhavebeenrevealedbytheresearchofthepre-seismicityanomaly.Insummary,thesourceislocatedinthejunctionofthethreefaultzones,andtheruptureplanesofthethreestrongeventslocatedinthesourcecanberegardedasthelockedsegmentsonthethreefaultzones.Onthesegrounds,thepaperexplainsthecomplexityofthesourceandepicentraldistributionofaftershocks.