简介：Softsettheoryhasarichpotentialapplicationinseveralfields.Asoftgroupisaparameterizedfamilyofsubgroupsandafuzzysoftgroupisaparameterizedfamilyoffuzzysubgroups.Theconceptoffuzzysoftgroupisthegeneralizationofsoftgroup.AbdulkadirAygunogluandHalisAygunintroducedthenotionoffuzzysoftgroupsin2009[1].Inthispaper,theconceptoflatticeorderedfuzzysoftgroupsanditsdualityhasbeenintroduced.Thendistributiveandmodularlatticeorderedfuzzysoftgroupsareanalysed.Theobjectiveofthispaperistostudythelatticetheoryoverthecollectionoffuzzysoftgroupinaparametricmanner.Somepertinentpropertieshavebeenanalysedandhenceestablisheddualityprinciple.

简介：ItisnecessaryforanMC-CDMAuplinkreceivertoemployMUD(multiuserdetection)inafrequencyselectivefadingchannel.AfteranalyzingthealgorithmofPIC(parallelinterferencecancellation)MUD,anovelMUDscheme,Soft-PIC(softparallelinterferencecancellation)isproposed.Basedonthereliabilityofeachdetectedusersignalintheformerstage,thisSoft-PICdetectionschemesubstitutesasoftdecisionofthevariablefortheharddecisioninPICscheme.ComparedwiththePICscheme,itcanreconstructtheinterferencesignalsmoreaccuratelyandeliminateMAI(multipleaccessinterference)inamoreefficientway.PICisoneofthemostpracticalschemesinnumerousmultiuserdetectiontechnologies.However,Soft-PICasanimprovedPICschemedeservesfurtherstudy.

简介：Indentationisasimpleandnondestructivemethodtomeasurethemechanicalpropertiesofsoftmaterials,suchashydrogels,elastomersandsofttissues.Inthiswork,wehavedevelopedamicro-indentationsystemwithhigh-precisiontomeasurethemechanicalpropertiesofsoftmaterials,wheretheshearmodulusandPoisson’sratioofthematerialscanbeobtainedbyanalyzingtheload–relaxationcurve.Wehavevalidatedtheaccuracyandstabilityofthesystembycomparingthemeasuredmechanicalpropertiesofapolyethyleneglycolsamplewiththatobtainedfromacommercialinstrument.Themechanicalpropertiesofanothertypicalpolydimethylsiloxanesamplesubmergedinheptanearemeasuredbyusingconicalandsphericalindenters,respectively.ThemeasuredvaluesofshearmodulusandPoisson’sratioarewithinareasonablerange.

简介：ThesoftswitchingareweldinginverterreducesswitchinglossesandimprovesoperatingenvitonmentofdevicesbyusingZero-Voltage-Transition(ZVT)technique.Step-by-stepanalysisofeachtimingintervalandtheassociatingvoltageandcurrentwaveformsareincludedfortheFull-BridgeZero-Voltage-SwitchedPWMcomerter,Numerousdesignequationssupportingthephase-shiftedsoftswitchingtechniquearehighlighte.

简介：这份报纸面对一个电的偏导领域与内在的有限变丑在软electroactive柱体学习波浪繁殖。为electroelasticity和联系线性增长理论基于一个最近建议的非线性的框架，管理axisymmetric波浪的基本方程在柱体打手势，它受到同类预先拉长并且先存在的轴的电的排水量，当electroactive材料各向同性、不可压缩时，被介绍。准确波浪答案然后被导出以(修改)Bessel函数。为非线性的electroactive材料的一个原型模型，解说性的数字结果被给。这被显示出效果预先拉长并且电的偏导地能在波浪繁殖特征上是重要的。

简介：MuchattentionshouldbepaidtoalargeFPSOmooredpermanentlyinanoilfieldwithwaterdepthofonlyabout20m,sinceshallowwatereffectsonthehydrodynamicsmaybringaboutcollisionanddamage.A160kDWTFPSOwithapermanentsoftyokemooringsystemisinvestigatedwithvariousshallowwaterdepthsandfocusesarethelowfrequencysurgemotionandmooringload.ComputationfortheFPSOsystemismadebasedonlinear3-Dpotentialfluidtheoryandtime-domainnumericalsimulationmethod.CorrespondingmodeltestiscarriedoutintheoceanengineeringbasinofShanghaiJiaoTongUniversity.Itisshownthat,inthesurgenaturalperiod,lowfrequencysurgemotionandmooringforceincreaseremarkablywiththedecreaseofwaterdepth.Especially,thesmallertheratioofwaterdepthanddraughtis,thequickertheincreaseis.Theshallowwatereffectsshouldbetakenintoaccountcarefullyfordeterminingthedesignloadofasinglepointmooringsystem.

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简介：In-situvanesheartestisfrequentlyperformedtodetermineshearstrengthforslopestabilityanalysisinTianjinNewHarbor.However,thesoilshearstrengthvarieswiththeshearplaneorientation.Apossiblemeanstoreducetheeffectofdirectionaldependencyofshearstrengthistoconvertthein-situvaneshearstrengthintoundrainedshearstrengthparameters.Amethodofconvertingin-situvaneshearstrengthintoundrainedshearstrengthparametersispresented.Theshearstrengthparametersdeterminedforallofthein-situvaneshearstrengthsaresubjectedtostatisticalregressionanalysistotakeintoconsiderationthepossibleeffectofnon-homogeneityinthesoftclaydeposit.Usingtheregressedshearstrengthparameters,slopestabilityanalysesareperformedforfiveexistingsoilslopes.Theresultsofstabilityanalysesindicatethatthesafetyfactorsobtainedfromtheconvertedparametersreflectthestateoftheslopesanalyzedmuchbetterthanthoseobtainedfromin-situvaneshearstrengthandlaboratoryconsolidated-undrainedandunconsolidated-undrainedstrengthparameters.Itisconcludedthatthepresentedmethsodofdeterminingundrainedshearstrengthparametersforin-situvaneshearstrengthiseffective.

简介：Stretchable/flexibleelectronicshasattractedgreatinterestandattentionduetoitspotentiallybroadapplicationsinbio-compatiblesystems.Oneclassoftheseultra-thinelectronicsystemshasfoundpromisingandimportantutilitiesinbio-integratedmonitoringandtherapeuticdevices.Thesedevicescanconformtothesurfacesofsoftbio-tissuessuchastheepidermis,theepicardium,andthebraintoprovideportablehealthcarefunctionalities.Uponcontractionsofthesofttissues,theelectronicsundergoescompressionandbucklesintovariousmodes,dependingonthestiffnessofthetissueandthestrengthoftheinterfacialadhesion.Thesebucklingmodesresultindifferentkindsofinterfacialdelaminationandshapesofthedeformedelectronics,whichareveryimportanttotheproperfunctioningofthebioelectronicdevices.Inthispaper,detailedbucklingmechanicsofthesethin-filmelectronicsonelastomericsubstratesisstudied.Theanalyticalresults,validatedbyexperiments,provideaveryconvenienttoolforpredictingpeakstrainintheelectronicsandtheintactnessoftheinterfaceundervariousconditions.

简介：AttheinitialoperationstageofthecontinuousbloomcasteratBaosteel,alotofcentralporosityandcracksoccurredinblooms,especiallyinthebloomsofhigh-pressureboilersteel.Inthisstudy,amodelofheattransferandsolidificationwassetuptoanalyzetheprocessofcontinuousbloomcasting.Basedonthemodel,thedistributionsoftemperaturefieldandshellthicknesswereobtained,themushyzonewasdefined,andtherebythetechnologyofsoftreductionforbloomswasdeveloped.Afterseveraltestswereconducted,areasonabletestplanwasdeveloped,whichledtothedeterminationoftheoptimalreductionzoneandgaugereduction.Now,centralporosityandcracksinbloomsarealmostavoidedandtheinnerqualityhasbeenobviouslyimproved.

简介：Reformandopening-up,representingagreatrevolution,havenotonlycompletelychangedthevisagesofChinaandtheChinesenation,butalsohaveimportantinternational

简介：In1929,AmericanastronomerHubblefirstdiscoveredthattherecessionalvelocityofagalaxyincreaseswithitsdistancefromtheearth,andthereforeputforwardHubble’slaw.ItisconsideredthefirstobservationalbasisfortheexpansionoftheuniverseandtodayservesasoneofthepiecesofevidencemostoftencitedinsupportoftheBigBangmodel.SincethentheastrophysicscommunityhasbelievedthattheuniverseisinaconstantrateofexpansionuntilSaulPermutter,BrianPaulSchmitandAdamGuyRieesdiscoveredtheacceleratingexpansionoftheuniversethroughobservationofseveraldozendistantsupernovasin1998,whothenwontheNobelPrizeinPhysics2011.Buthumanstillcannotcompletelyexplainthephenomenonthattheuniverseisexpandingatanever-acceleratingrate.Thustheauthorofthispaperstudiedtheoriginandevolutionofgalaxiesagain,andrevealedthestructureofgalaxyandprovedHubble’slaw,thenrevealedthetruthabouttheexpansionoftheuniverseaswellasdarkmatteranddarkenergy.

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简介：Anextendedelectronmodelfullyrecoversmanyoftheexperimentalresultsofquantummechanicswhileitavoidsmanyofthepitfallsandremainsgenerallyfreeofparadoxes.TheformulationofthemanybodyelectronicproblemhereresemblestheKohnShamformulationofstandarddensityfunctionaltheory.However,ratherthanreferringelectronicpropertiestoalargesetofsingleelectronorbitals,theextendedelectronmodelusesonlymassdensityandfieldcomponents,leadingtoasubstantialincreaseincomputationalefficiency.Todate,theHohenberg-Kohntheoremshavenotbeenprovedforamodelofthistype,norhasauniversalenergyfunctionalbeenpresented.Inthispaper,weaddresstheseproblemsandshowthattheHohenbergKohntheoremsdoalsoholdforadensitymodelofthistype.Wethenpresentaproof^of^conceptpracticalimplementationofthismethodandshowthatitreproducestheaccuracyofmorewidelyusedmethodsonatest-setofsmallatomicsystems,thuspavingthewayforthedevelopmentoffast,efficientandaccuratecodesonthisbasis.

简介：Earlyin1904,Hadamard[1]showedthescaleimplicitfunctiontheoremoffinitedimensions.Thenitwasgeneralizedtoinfinitedimensions.Inthispaperanewproofofthistheoremisgivenandtheuniqueexistenceoftheperiodicsolutionforaclassofordinarydifferentialequationsystemsatresonanceisobtained.

简介：软沉积的变丑结构的间隔在在西方的Qaidamu盆的侏罗记湖的存款是暴露得好的。通过地观察，许多软沉积的变丑结构能被识别，例如旋绕的床上用品，液化的沙静脉，负担和火焰结构，商业萧条结构和重叠滑动的结构。基于他们的开始，软沉积的变丑结构能作为三种类型被分类：地震导致的结构，垂直装载结构，并且水平砍结构。基于他们的几何学和开始分析，他们是地震导致结构。根据旋绕的床上用品结构和液化的沙静脉的特征，在中间的侏罗记期间有比在学习区域的大小6大的地震，这能被推断。而且，商业萧条结构的学习和重叠滑动的结构显示在中间的侏罗记期间有一个东南的斜坡。自从到Altyn山和Altyn差错的来自学习区域的距离，是仅仅10km，Altyn山然后存在并且Altyn罢工滑倒差错在中间的侏罗记期间是活跃的，这能也被推断。

简介：Full-bridgeZero-Voltage-SwitchPWMconvertercombinesadvantagesofthePWMcontroltechniqueandresonanttechnique.However,FullZVSisachievedonlyunderlargeloadcurrentbecauseresonanttankofthiscircuitismadeupoftheparasiticcapacitanceofthepowersemiconductorsandtheleakageinductorofthetransformerprimary.Inthispapertwosaturableinductorsasmagneticswitchesareaddedtosecondary,sooutputinductorisalwaysreflectedtoprimaryandassistsresonanttransition.FullZVSisachievedunderlowerloadcurrent.Theabove-mentionedinvestigatedresultsarevalidatedbythecomputerizedsimulationandhardwarecircuitexperiment.

简介：ShanghaiislocatedineasternChinaandisbuiltonoverburdensoillayers.ItcanbeseenfromtheMexicoMs=8.1earthquakeonSeptember19,1985andtheHanshinMs=7.4earthquakeonJanuary17,1995thatheavycasualtiesandpropertylosseshaveadirectrelationshipwithoverburdensoillayers.Groundmotionscausedbyearthquakesaresignifieantlyamplifiedwhenpassingthroughthesoillayers.Undertheinfluenceoftheseamplifiedmotions,buildingstructures,whosenaturefrequencyiswithinthefrequencybandofsoilamplificationresponse,willexperiencemoreseveredamagethanthosebuiltonbedrock.Therefore,engineeringseismologistshavepaidconsiderableattentiontheamplificationresponsesintheShanghaioverburdensoillayers.TheamplificationresponsesofsoilandsandlayersinthispaperaregivenbytheML=4.1earthquakeinNantong,JiangsuProvinceonDecember25,2001at31.8°N,120.9°E.Itcanbeseenthattheresponsesofsoilandsandlayersareverydifferent.Thatisimportant.

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简介：China'sreformandopeningup,hailedasagreatrevolution,hasnotonlytransformedthecountryandnationinathoroughwaybutalsoproducedasignificantinfluenceinternationally.IthasfreedChina'smaterialaswellasnon-materialproductiveforces