简介：Aclassofinitialboundaryvalueproblemsforthereactiondiffusionequationsareconsidered.Theasymptoticbehaviorofsolutionfortheproblemisobtainedusingthetheoryofdifferentialinequality.

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简介：1IntroductionKyaniteisanimportantnaturallyoccurringindustrialmineralandisusedinthemanufactureofavarietyofindustrialceramicproducts;notableexamplesincluderefractoriesandporcelains.Itisahighpressurepolymorphofthealuminosilicatesofthenesosilicategroup,whichincludeskyanite,sillimanite,andandalusite.

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简介：到在蝗虫生态学的框架的群居的阶段的从solitarious的转变的详细方面为理解蝗虫阶段polyphenism无疑是很重要的。但由于在在自然学习solitarious阶段的明显的困难，如此的信息从在实验室条件下面执行的研究有限、主要可得到。在当前的学习，我们在模仿了seminatural条件的实验室安装检验了最新孵的蝗虫美女的疏开模式。这没有除控制他们的父母密度以外的美女的以前的操作被执行。我们比较地在在不同范围位于出现以内的栖息上测试了最新孵的美女的空间分发竞技场，和期望的泊松(随机)分发。人工孵化的鱼苗或小鸟被发现在与由随机期望那显著地不同的一个模式在栖息之中分散。不管他们的父母阶段，所有美女的观察分布清楚地是clumped、类似或为群居的蝗虫近到那些期望。看起来而非与一个父母地导出并且预定的阶段新兴，人工孵化的鱼苗或小鸟有一个独立缺省或天生的行为的状态，它反映至少忍耐如果不吸引力到conspecifics。典型阶段行为以后可以在适当环境条件下面变得主导。这些结果在蝗虫阶段转变上暗示新奇观点，它在地条件下面贡献我们蝗虫人群的形成的理解。这些应该为开发蝗虫人口的预防管理策略在任何基本原理被考虑。

简介：Subjecttotheassumptionthatthecommondistributionofclaimsizesbelongstotheextendedregularvariationclass,thepresentworkobtainsasimpleasymptoticformulafortheruinprobabilitywithinarandomornonrandomhorizonintherenewalmodel.

简介：Inperiodiccellularstructures,novelpatterntransformationsaretriggeredbyareversibleelasticinstabilityundertheaxialcompression.Basedonthedeformation-triggerednewpattern,periodiccellularstructurescanachievespecialmechanicalproperties.Inthispaper,thedesignedarchitecturematerialswhichincludeelastomermatrixescontainingemptyholesorfilledholeswithhydrogelmaterialaremodeledandsimulatedtoinvestigatethemechanicalpropertyoftheperiodicmaterials.Byanalyzingtherelationshipbetweennominalstressandnominalstrainofperiodicmaterial,andthecorrespondingdeformedpatterns,theinfluenceofgeometryandshapesoftheholesonthemechanicalpropertyofarchitecturematerialisstudiedinmoredetails.Wehopethisstudycanprovidefutureperspectivesforthedeformation-triggeredperiodicstructures.

简介：Theinterfacialbehaviorofpipejointsisstudiedinthispaper.Firstly,throughnonlinearfracturemechanics,theanalyticalexpressionsofinterfacialshearstressandtheloaddisplacementrelationshipatloadedendofpipejointsundertorsionloadsareobtained.Thustheshearstresspropagationandthedebondingprocessofthewholeinterfacefordifferentbondlengthscanbepredicted.Secondly,throughtheanalyticalsolutions,theinfluencesofdifferentbondlengthsontheload-displacementcurveandtheultimateloadarestudied.Thestresstransfermechanism,theinterfacecrackpropagationandtheductilitybehaviorofthejointscanbeexplained.

简介：electrospunpolyacrylonitrile(平底锅)的听觉的抑制性质有不同厚度和孔的nanofibrous膜被调查。健全吸收系数基于ISO10534-2:1998(E)用阻抗试管仪器被测量。结果显示nanofibrous膜的第一回声吸收频率随背洞的增加或膜的厚度变到更低的频率。而且，穿孔面板的健全吸收性能能被联合极大地与平底锅nanofibrous的薄层改进膜。传统的听觉的抑制材料(泡沫，纤维)与nanofibrous膜涂独自比听觉的材料的在低、中等的频率范围有更好听觉的性能。所有结果证明PANnanofibrous膜是噪音减小的一个合适的候选人。

简介：Weproposeacatalysis-selectmigrationdrivenevolutionmodeloftwo-species(A-andB-species)aggregates,whereoneunitofspeciesAmigratestospeciesBunderthecatalystsofspeciesC,whileunderthecatalystsofspeciesDthereactionwillbecomeoneunitofspeciesBmigratingtospeciesA.MeanwhilethecatalystaggregatesofspeciesCperformself-coagulation,asdothespeciesDaggregates.Westudythiscatalysis-selectmigrationdrivenkineticaggregationphenomenausingthegeneralizedSmoluchowskirateequationapproachwithCspeciescatalysis-selectmigrationratekernelK(k;i,j)=KkijandDspeciescatalysis-selectmigrationratekernelJ(k;i,j)=Jkij.Thekineticevolutionbehaviourisfoundtobedominatedbythecompetitionbetweenthecatalysis-selectimmigrationandemigration,inwhichthecompetitionisbetweenJD0andKC0(D0andC0aretheinitialnumbersofthemonomersofspeciesDandC,respectively).WhenJD0KC0>0,theaggregatesizedistributionofspeciesAsatisfiestheconventionalscalingformandthatofspeciesBsatisfiesamodifiedscalingform.AndinthecaseofJD0KC0<0,speciesAandBexchangetheiraggregatesizedistributionsasintheaboveJD0KC0>0case.

简介：BulkZr55Al10Ni5Cu30metallicglassplateswithadimensionof85mm×35mm×4mmandacomplicatedplatewerefabricatedbyinjectingcastingmethodusingspongyzirconiumandindustrialpurityaluminum,nickelandcopperasrawmaterials.Itwasshownthattheholdingtimeofliquidmetalsatelevatedtemperatureshadagreatinfluenceontheoxygencontentoftheplatesduetothecontaminationresultingfromtheatmosphere.Increasingholdingtimeresultedintheincreaseofoxygencontentintheinjectedalloy.Theglasstransitiontemperaturesofthebulkmetallicglassplatesarehigherthanthatreportedintheliteratureandcrystallizationtemperatureislowerfortheonewithhigheroxygencontentatthesameheatingrate.Theextensionoftheundercooledliquidregion△Txreachingabout87Kis3Khigherthanthatpreviouslyreportedand26Khigherthanthatwithoxygencontentof0.076wtpctfortheonewithoxygencontentashighas0.065wtpct.Thereforetheoxygencontentofthealloyhasasignificantinfluenceontheglassformingabilityandthermalstabilityofbulkmetalglass.Itissuggestedthatdirectcorrelationbetweenhighglassformingabilityandlarge△Txisonlyvalidforawell-definedIowoxygenconcentrationorhastobereconsideredbyincorporatingoxygenasanadditionalalloyingelement.

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简介：ThepolycrystallinesamplesofLa2/3Ca1/3MnO3werepreparedbyaconventionalsolidstatereactionmethod.Themagnetizations(ZFC,FCandinitialmagnetization)ofthepolycrystallineLa2/3Ca1/3MnO3weremeasuredwithsuperconductingquantuminterferencedevicemagnetometer.Thescalingtheorywasemployedtostudythechangesofcriticalbehaviorarisingfromtheappliedexternalfield.Thecriticalparameterβdecreaseswithincreasingtheexternalmagneticfieldresultsinanincreaseinthemagnitudeofferromagneticordering.

简介：Basedonfluidequations,weshowatime-dependentself-consistentnonlinearmodelforvoidformationinmagnetizeddustyplasmas.Thecylindricalconfigurationisappliedtobetterillustratetheeffectsofthestaticmagneticfield,consideringtheazimuthalmotionofthedusts.Thenonlinearevolutionofthedustvoidandtherotationofthedustparticlesaretheninvestigatednumerically.Theresultsshowthat,similartotheunmagnetizedone-dimensionalmodel,theradialiondragplaysacrucialroleintheevolutionofthevoid.Moreover,thedustrotationisdrivenbytheazimuthaliondragforceexertingonthedust.Astheazimuthalcomponentofionvelocityincreaseslinearlywiththestrengthofthemagneticfield,theazimuthalcomponentofdustvelocityincreasessynchronously.Moreover,theangularvelocitygradientsofthedustrotationshowasheareddustflowaroundthevoid.

简介：Therapidadvancementofscienceandtechnologyintheeraofbusinesscompetition,asitistoday,hasanimpactonaverydynamicbusinessenvironment,andrequiresorganizations/companiestohavehumanresources(employees)thatareinnovativeandresponsivetotheadvancementofscienceandtechnology.Schoolsanduniversitiesmustcontributetopreparinggenerationswhohavetheabilitytoinnovateforeveryemployeewhoworksinanagency/company.Thepurposeofthisstudyistostudythedominantfactorsthatinfluencebehaviortoproduceinnovativeproducts.Thequantitativeapproachwasusedinthisstudywithsurveymethods.Thesampleofthisstudyis100employeeswhoareoneofthecompaniesinthefieldoftechnologyservicesinJakarta,including:markets,volunteerwebsites,portals,andselectedbypurposivesampling.Datawereobtainedbydistributingquestionnairesandanalyzedusingregression.Regressionanalysisisusedtodeterminethemodeloftherelationshipbetweenbehaviortoproduceinnovativeproducts(Y)withentrepreneurialleadership(X1)andcreativity(X2).Theresultsofthestudyare:(1)Entrepreneurialleadershipandcreativitycollectivelyhaveapositiveinfluencetoimprovebehaviortowardsinnovativebehavior;(2)leadershipandentrepreneurialcreativitycollectivelycontributetoimprovingbehaviortoproduceinnovativeproductsat77%and23%ofotherfactors;(3)entrepreneurialleadershipandcreativity“cannotbeignored”asaninstrumenttoimprovebehaviortoproduceinnovativeproducts;(4)improvingbehaviortoproduceinnovativeproductscanbepredictedbyincreasingentrepreneurialleadershipandcreativitybyusingasimpleregressionmodelY=0.61+0.47X1+0.41X2.

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