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简介：我们在场为聚合物的有效热传导性(等等)的一个实验模型合成那在填料尺寸分发上包括相关性—选择为Rosin-Rammler分发。等等基于某些假设被决定，到一个模型的连接真实合成材料A的行为合成材料B，充满了单音维的填料。到为等等的马模型的这些假设的申请被介绍。新模型和它的典型方程的确认从参考用试验性的数据被执行。比较由使用尺寸分发法律显示出那一很好在新模型(为ETC的尺寸分发模型)和参考的方程之间合适试验性的结果被获得甚至为大量的部分，大约多达50%。

简介：Severalcrosslinkedprotonexchangemembraneswithhighprotonconductivitiesandlowmethanolpermeabilitycoefficientswereprepared,basedonthesulfonatedpoly[(4-fluorophenoxy)(phenoxy)]phosphazene(SPFPP)andnewlysynthesizedwatersolublesulfonatedpoly(cyclophosphazene)(SPCP)containingclusteredflexiblependantsulfonicacids.ThestructureofSPCPwascharacterizedbyfouriertransforminfraredspectroscopy(FTIR)and~1HNMRspectra.ThemembranesshowedmoderateprotonconductivitiesandmuchlowermethanolpermeabilitycoefficientswhencomparedtoNafion117.Transmissionelectronmicroscopy(TEM)resultsindicatedthewell-definedphaseseparationbetweenthelocallyanddenselysulfonatedunitsandhydrophobicunits,whichinducedefficientprotonconduction.IncomparisonwithSPFPPmembrane,theprotonconductivities,oxidativestabilitiesandmechanicalpropertiesofcrosslinkedmembranesremarkablywereimproved.TheselectivityvaluesofallthecrosslinkedmembraneswerealsomuchhigherthanthatofNafion117(0.74×10~5S·s/cm~3).TheseresultssuggestedthatthecSPFPP/SPCPmembraneswerepromisingcandidatematerialsforprotonexchangemembraneindirectmethanolfuelcells.

简介：ThispaperappliestheEXP-functionmethodtofindexactsolutionsofvariousnonlinearequations.Tzitzeica-Dodd-Bullough(TDB)equationwasselectedtoillustratetheeffectivenessandconvenienceofthesuggestedmethod.Moregeneralizedsolitonarysolutionswithfreeparameterswereobtainedbysuitablechoiceofthefreeparameters,andalsotheobtainedsolitonarysolutionscanbeconvertedintoperiodicsolutions.

简介：Inthispaper,theenergy,equilibriumgeometry,andharmonicfrequencyofthegroundelectronicstateofPO2arecomputedusingtheB3LYP,B3P86,CCSD(T),andQCISD(T)methodsinconjunctionwiththe6-311++G(3df,3pd)andcc-pVTZbasissets.AcomparisonbetweenthecomputationalresultsandtheexperimentalvaluesindicatesthattheB3P86/6-311++G(3df,3pd)methodcangivebetterenergycalculationresultsforthePO2molecule.ItisshownthatthegroundstateofthePO2moleculehasC2vsymmetryanditsgroundelectronicstateisX2A1.TheequilibriumparametersofthestructureareRPO=0.1465nm,∠OPO=134.96°,andthedissociationenergyisEd=19.218eV.Thebentvibrationalfrequencyν1=386cm-1,symmetricstretchingfrequencyν2=1095cm-1,andasymmetricstretchingfrequencyν3=1333cm-1areobtained.Onthebasisofatomicandmolecularreactionstatics,areasonabledissociationlimitforthegroundstateofthePO2moleculeisdetermined.ThentheanalyticpotentialenergyfunctionofthePO2moleculeisderivedusingmany-bodyexpansiontheory.ThepotentialcurvescorrectlyreproducetheconfigurationsandthedissociationenergyforthePO2molecule.

简介：Ｅｘｃｉｔａｔｉｏｎ　Ｆｕｎｃｔｉｏｎ　ｏｆ　Ｆｉｓｓｉｏｎ　ａｎｄ　Ｔｒａｎｓｆｅｒ　Ｒｅａｃｔｉｏｎ　ｉｎ　Ｂｏｍｂａｒｄｍｅｎｔ　ｏｆ　４０Ａｒ　ｏｎ　１５９Ｔｂ　ＮｕｃｌｅｉＥｘｃｉｔａｔｉｏｎＦｕｎｃｔｉｏｎｏｆＦｉｓｓｉｏｎａｎ...

简介：Apreviouslypublishednewrotationfunctionhasbeenimprovedbyusingadynamiccorrelationcoefficientaswellastwonewscoringfunctionsofrelativeentropyandmean-square-residuestomaketherotationfunctionmorerobustandindependentofaspecificsetofweightsforscoringandranking.ThepreviouslydescribednewrotationfunctioncalculatestherotationfunctionofmolecularreplacementbymatchingthesearchmodeldirectlywiththePattersonvectormap.Thesignal-to-noiseratioforthecorrectmatchwasincreasedbyaveragingallthematchingpeaks.Severalmatchingscoreswereemployedtoevaluatethegoodnessofmatching.Thesematchingscoreswerethencombinedintoasingletotalscorebyoptimizingasetofweightsusingthelinearregressionmethod.Itwasfoundthatthereexistsanoptimalsetofweightsthatcanbeappliedtotheglobalrotationsearchandthecorrectsolutioncanberankedinthetop100orless.However,thissetofoptimalweightsingeneralisdependentonthesearchmodelsandthecrystalstructureswithdifferentspacegroupsandcellparameters.Inthiswork,wetrytosolvethisproblembydesigningadynamiccorrelationcoefficient.Itisshownthatthedynamiccorrelationcoefficientworksforavarietyofspacegroupsandcellparametersintheglobalsearchofrotationfunction.Wealsointroducetwonewmatchingscores:relativeentropyandmean-square-residues.Lastbutnotleast,wediscussedavalidmethodfortheoptimizationoftheadjustableparametersformatchingvectors.

简介：Amicroturbo-expandercapableofhighworkingspeedwasspeciallymanufacturedforuseinanorganicRankinecycle(ORC).Aseriesoftestswereexecutedtoexaminetheperformanceofthemachine.Intheexperiment,themachinewastestedunderdifferentinletpressureconditions(0.2-0.5MPa).Datasuchasthecompressedairpressure,temperaturesoftheinletandtheoutlet,rotationalspeed,andelectricpowergenerationwereanalyzedtodiscoverunderlyingrelationships.Duringthetest,therotationalspeedofthemachinereachedashighas54000r/min,thepeakvalueofthetemperaturedropbetweentheinletandtheoutletreached42℃,themaximumelectricpowergeneratedbythemotor-generatorattachedtothemachinereached630W,andtheefficiencyofthemachinereached0.43.

简介：Rapidgrowthofmannedspaceflightresultsinmoreconcernabouthealthriskandanurgentneedofhealthassessmentinspacetravel.Sincetheimportanceofbrainfunctionstoastronauts,weexploredthelong-termeffectsandpotentialmechanismsof56Feionradiationonmicebrain.

简介：在这篇论文，基于高顺序的速度精力，集成和变化原则的定理，高顺序的哈密尔顿一般holonomic系统的原则被给。然后，三顺序的Lagrangian方程和四顺序的Lagrangian方程从高顺序的哈密尔顿的原则被获得。最后，哈密尔顿高顺序的Lagrangian功能的原则被给。

简介：我们把tanh函数方法与对称组方法相结合构造Davey-Stewartson方程和implemente的解决方案的新类型它在一台计算机代数学的系统。作为结果，答案的一些新类型被获得。如果非线性的进化方程承认转变的重要one-parametergroup，这个方法也被用于另外的微分方程。

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简介：Byusingthemodifiedmappingmethod,wefindsomenewexactsolutionsofthegeneralizedBoussinesqequationandtheBoussinesq-Burgersequation.ThesolutionsobtainedinthispaperincludeJacobianellipticfunctionsolutions,combinedJacobianellipticfunctionsolutions,solitonsolutions,triangularfunctionsolutions.

简介：Inthisletterthethree-dimensionalnonlinearHelmholtzequationisinvestigated,whichdescribeselectro-magneticwavepropagationinanonlinearKerr-typemediumsuchthatsixteenfamiliesofnewJacobiellipticfunctionsolutionsareobtained,byusingourextendedJacobianellipticfunctionexpansionmethod.Whenthemodulusm→1or0,thecorrespondingsolitarywavesincludingbrightsolitons,darksolitonsandnewlinesolitonsandsinglyperiodicsolutionscanbealsofound.

简介：Weproposeanultra-simpledual-channelconfigurationforsimultaneouslyevaluatingtwobranchesofamultifunctionalintegratedopticchip(MFIOC).Intheconfiguration,theMFIOCisemployedasabeamsplittertoconstructthedemodulationinterferometertogetherwitha2×2fibercoupler.InterferencehappensbetweenpolarizationmodestravelingthroughdifferentchannelsoftheMFIOC.Thecross-couplingsofeachchannelarerespectivelycharacterizedbytheinterferencepeakswhichdistributeonoppositesidesofthecentralinterferencepeak.TemperatureresponsesoftheMFIOCareexperimentallymeasuredfrom-40°Cto80°C.Resultsshowthattheproposedconfigurationcanachievesimultaneousdual-channeltransientmeasurementswithresolutionof-90dBanddynamicrangeof90dB.Inaddition,thetwochannelsoftheconfigurationhaveconsistentmeasuringperformance,andthetwobranchesoftheMFIOChavedifferentresponsestotemperaturevariation.

简介：Inordertoinvestigatethefiresuppressioneffectivenessofwatermistwithmetalchlorideadditives,ultrafinewatermistsofthesesaltswithdiametersabout10μmwereintroducedintoCH4/airnon-premixedflameinthecupburner.Resultsshowedthatthesedropletshardtomakeitselftotheflamefrontunderthecupburnerflowconditionsfunctionedasacarrierofthevaporizedsolidparticlesoritsdecomposedmaterials.Themetalchlorideimprovedfiresuppressionefficacyofwatermistwhichwereaffectedbythetypeandconcentrationofmetalchloride.Onamassbasis,thereisafiresuppressioneffectivenessrelationshipofMgCl2

简介：Room-temperaturetestwithhighpowerisanessentialstepbeforecouplersareinstalledonsuperconductingcavities.Anewroom-temperatureteststandisbeingdesignedatIMP.ThenewstandwillbeassembledwithaNC(normal-conducting)QWRcavity.Thepowerlossonthecavitywhencouplersareconditionedintraveling-wavemodehastobethoroughlyevaluated.Fig.1demonstratesthepowerflowintraveling-waveconditioningmode.Pe1andPe2representthepowerthatisextractedbycouplers.PfandPredenotetheforwardpowerandreflectedpower,respectively.

简介：CrystallineTiO2（P25）andisolatedtitanatespeciesinaZSM-5structure（TS-1）weremodifiedwithAuandAg,respectively,andtestedinthegas-phasephotocatalyticCO2reductionunderhighpurityconditions.Thenoblemetalmodificationwasperformedbyphotodeposition.LightabsorbancepropertiesofthecatalystsareexaminedwithUV–Visspectroscopybeforeandaftertheactivitytest.Inthegas-phasephotocatalyticCO2reduction,itwasobservedthatthecatalystswithAgnanostructuresaremoreactivethanthosewithAunanostructures.Itisthusfoundthattheenergeticdifferencebetweenthebandgapenergyofthesemiconductorandthepositionoftheplasmonisinfluencingthephotocatalyticactivity.Potentially,plasmonexcitationduetovisiblelightabsorptionresultsinplasmonresonanceenergy,whichaffectstheexcitationofthesemiconductorpositively.Therefore,anoverlapbetweenbandgapenergyofthesemiconductorandmetalplasmonisneeded.

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