简介：2Introduction,Citation,ReviewandDevelopmentofDiwaTheorybyForeignScientistsandScientistsofTaiwan,ChinaIn1956,theChinesegeoscientistChenGuodapublishedapaperentitled"ExamplesofActivatedRegionintheChinesePlatformwithSpecialReferencetotheCathaysiaProblem",inwhichheunderstoodplatformactivationasthetransfo

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简介：Encodingsinpolymorphismwithfiniteproducttypesareconsidered.TheseencodingsaregivenintermsofI-algebras.Theyhavethpropertythatthegroundtermsarepreciselytheclosednormaltermsoftheencodedtypes.Theproofofawell-knownresultistransplantedtothesettinganditisshownwhyweakrecursionisadmissible.Thepaperalsoshowshowtocarryoutthedualencodingsusingtheexistentialquantifier.

简介：(FollowingVol.23,No.2)　　In1988,theRussiangeoscientistN.I.Nikolaevinthebook"NewestTectonicsandGeodynamicsofLithosphere"wrote:"In1960,whenexplainingthepeculiaritiesoftheMeso－CenozoicgeologicalhistoryofChina,ChenGuoda,equallywithplatformsandgeosynclines,alsodistingui

简介：Fourpapersinthebookhavementionedtheterm"diwa".ShcheglovA.D.inthcpaper"BasicMetallogenicFeaturesofRegionsofTectono-MagmaticActivizationandNewAvenuestoPrognosisofMineralDeposits"wrote:"Regionsoftectono-magmaticactivizationmaybesharplydividedintothefollowingtwotypes,eachhavingitsownpeculiaritiesofdevel

简介：(FollowingVol.24,No.1)Theauthorthinksthat'itisnecessarytoindependentlystudyactivationprocessesandstructures,astheirmetallogenyissharplydifferentfrommetallogenyofgeosynclinesandplatforms.Today,theirsignificanceincreasesbecauseweneedtoworkoutaregionalconceptofrationaluseofnaturalresources,whichcorsidersthatvariousnaturalresources(frommineraltorecycled)havenaturaldynamicrelationsandmutualdependentrelationships.'

简介：(FollowingVol.25,No.1-2)In1992,theRussiangeoscientistE.E.Milanovskyinthepaperentitled'ImportanceofStudiesandTheoreticalIdeasinChinaGeologyforSovietScienceDevelopment'emphasizedtheinfluenceofstudiesandtheoreticalideasinChina'sgeology,especiallyintectonicsandstratigraphy,onthedevelopmentofRussianscience.Helookedupontectono-magmaticactivizationasoneofthefourChina'sgeologicalachievementsthathavedeeplyinfluencedgeologicalthinkinginRussia.Hewrote:'InChinathepeculiarfeatureofMesozoicfolddeformationsandmagmaticmanifestationsconjugatetothemwastheirextremelywidedistributionwithintheChina-KoreaandSouthChinaplatforms.Thesephenomenawererecordedalsointhesouth-easternpartoftheSiberianplatform(withintheAldan-Stanovoishield)andintheeasternsegmentsoftheUrals-Mongolianmobilebelt(inthenortheasternpartofChina,intheeasternpartofMongoliaandtheTransbaikal-PriamurregionofRussia),wheretheHercynianfoldingcompletingtheirgeosynclinaldevelopmentwasfollowedintheearlyormiddleMesozoicbyeitherpartialregenerationofgeosynclinalregimeor,accordingtootherresearchers,tectonomagmaticactivization.'

简介：PotentialenergysurfaceofHNOSsystemisinvestigatedbymeansofMP2methodwith6-311++G(d,p)basisset.TheenergyforeachminimumandsaddlepointonthepotentialenergysurfaceiscorrectedattheQCISD(T)/6-311++G(3df,2p)leveloftheorywithzero-pointvibrationalenergyincluded.Asaresult,eighteenisomersaretheoreticallypredictedandcis-HNSOisfoundtobeglobalminimumonthepotentialenergysurface,Wherein,fourteenisomersareconsideredaskineticallystablespecies,andshouldbeexperimentallyobserved.ComparisonsaremadeforHNOSsystemwithitsanalogues,HNO2andNHS2.Thenatureofbondingandisomers'stabilityofHNOSsystemaresimilartoHNS2.TheobvioussimilaritiesanddiscrepanciesamongHNOS,HNO2andHNS2areattributedtothehypervalentcapacityofsulfur,oxygenandnitrogenatoms.

简介：Geodomestructuresinthispaperrefertopositiveunitsofdiffcrentorders,geodomespptem,geodomesericsandgeodome,inadiwaregion.Onthem,besidesintrusivebodies,thediwastructuralstag6iscomplcte1ymissingoron1yhasasmallareaandthickncss,butthop1atform,gcosynclina1andcvcnprcgcosyncllna1structuralstagcsarccxposcdwidc

简介：Inthispaper,wediscussthetopologicalstructuresofthevortexfilamentsandvortextubeswithanexactsolutionofastraightspiralvortextube.Wefindthattherearesomeconfusionsaboutthecalculationofthehelicitiesofaknottedvortexfilamentandsomelinkedvortexfilamentsbyusingdifferentmethods.Weexplainhowtounifythesemethodsandgivetherightresults.

简介：-Inthispaper,mathematicalmodelsanddynamicanalysesforbothSDOFandMDOFstructuresisolatedwithdampersareestablishedandperformed,andacomprehensivecomputationmethodisprovided.TheshockabsorbingeffectisillustratedthroughanexampleofatwoDOFdamper-isolatedsystemexcitedbysinusoidalwavesandactualgroundaccelerationinputrecordedinearthquakes.Itisshownthatmostoftheresponsesofthestructurewithdampersreducegreatlyneartheresonantzone,butaccelerationisenlargedinthelowerorhigherfrequencyzone;amongvariousparameters,theinfluenceoffrictionalcoefficientnisthemostsignificant,thatofdampingratioofthedampers,isthesecond,andthatofstiffnesscoefficientofthedampersk,istheslightest.

简介：Aprocedureforreanalysisofvariousstructuressubjectedtovarioustopologicalmodifi-cationsispresented.Theprocedureisbasedontheresultsofasingleexactanalysisandthefactoriza-tionofthestiffnessmatrixofinitialstructures.Itissuitableforthecaseofadditionofjoints,wherethenumberofthedegreesoffreedomisincreased.Themethoddealswiththestiffnessmatrixofstruc-turesdirectly,soitcanbeusedwithageneralfiniteelementsystem.Itisshownthattheproposedap-proximationmethodismosteffectiveintermsofaccuracy,efficiency,andeaseofimplementation.

简介：Trellisstructuresofblockcodesarediscussed.L-sectiontrellisstructuresofsomeBCHcodesarepresented.AfastmaximumlikelihooddecodingalgorithmforBCHcodesisproposedcorrespondingly,thedecodingproblemofq-aryimagesofqm-aryblockcodesisalsodiscussed.Thedirect-sumpartitionandtheassociateddecodingalgorithmsaregivenfortheimages.

简介：Synthesis,structures,propertiesandapplicationsofhypercrosslinkedpolystyrenesarereviewedwith50refereneces.

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简介：Theapproximateeigenfrequenciesforthein-planevibrationsofacablestruc-tureconsistingofinclinedcables,togetherwithpointmassesatvariouspointswerecom-puted.Itwasdiscoveredthattheclassicaltransfermatrixmethodwasinadequateforthistask,andhencethelargerexteriormatriceswereusedtodeterminetheeigenfrequencyequation.Thenpredictionsofthedynamicsofthegeneralcablestructurebasedontheasymptoticestimatesoftheexteriormatricesweremade.

简介：Semi-empiricalmolecularorbitalcalculationswereperformedonheterocyclicaromaticamines(HCAs).TherelationshipbetweenthestructuresandthecarcinogenicitiescanberationallyelucidatedbythemodelsbasedonthemetabolismofHCAsandtheDi-regiontheory.ThedegreeofeasinessfortheformationofDi-regionelectrophiliccentersdeterminesthecarcinogenicactivity.ThereisagoodlinearrelationshipbetweentheobservedcarcinogenicitiesandthePM3calculatedparameters,withr=0.973andF=29.8>(F*0.*01).

简介：-AboldinnovationwascarriedoutforthestructuraltypeofwharvesinlinewithlocalconditionsinChiwanPort,inwhichagroupofwharveswithnovelstructureshavebeenbuiltinthisportduringthepasttenyears.