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简介：当考虑热传导时，阶段地建模途径被用来学习纯Ni的氧化行为。在这计算，温度T上的Cahn-Hilliard方程Lc的系数的依赖被考虑。到这个目的，为纯Ni当模特儿的高温度的氧化实验和阶段地在600点在气压下面在空中被执行，700，并且\(800\，^{\circ}\hbox{C}\)。氧化率被thermogravimetry测量，在这些温度的Lc经由交互算法是坚定的。与Lc\({构造的-}T\)关系，Ni的氧化行为当考虑热时，传导被调查。氧化度，氧化物电影厚度，和特定的重量获得上的温度边界的影响被讨论。当模特儿的途径在这研究建议了的阶段地将给氧化抵抗分析的一些热点和热保护材料的冷却措施设计。

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简介：Monoclinicparacetamol(PA)isnotoriousasapoorlycompactiblemodeldrug.Polyvinylpyrrolidone(PVP)isapolymerthatcanactasaneffectivebindertoimprovethemechanicalpropertiesofPA.ItissurprisinghoweverthattheroleofmixingconditionsonthephysicochemicalandmechanicalpropertiesofPA-PVPmixtureshasnotbeenreportedpreviously.TheresultsofthisworkshowedthatPA-PVPmixturescontaining5%(w/w)PVPpreparedusinghighenergymixingconditionshadconsiderablysmallerparticlesizedistributionsandhighercohesivitiesthanmixturespreparedusinglowenergymixingconditions.Solid-stateanalysisdidnotdetectanychangeinthemonocliniccrystallineformofPAaftermixingwithPVP.ThefollowingrankorderoftabletabilityforPA-PVPmixtureswasobtainedaccordingtothemixingcondition:lowshear-mediumshear

简介：Themonitoredresonantbehavioroffatiguespecimensofmetastableausteniticstainlesssteel(AISI304)iscorrelatedwithitsdamageaccumulationintheveryhighcyclefatigue(VHCF)regime.Theresonantbehaviorisstudiedexperimentallyandshowsadistincttransientcharacteristic.MicroscopicexaminationsindicatethatduringVHCFalocalizedplasticdeformationinshearbandsarisesonthespecimensurface.Hence,thisworkfocusesontheeffectofdamageaccumulationinshearbandsontheresonantbehaviorofAISI304intheVHCFregime.Amicrostructuralsimulationmodelisproposedthattakesintoaccountspecificmechanismsinshearbandsprovenbyexperimentalresults.Thesimulationmodelissolvednumericallyusingthetwo-dimensionalboundaryelementmethodandtheresonantbehaviorischaracterizedbyevaluatingtheforce-displacementhysteresisloop.Simulationofshearbandsagreeswellwithmicroscopicexaminationsandplasticdeformationinshearbandsinfluencesthetransientcharacteristicoftheresonantbehavior.

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简介：Theinnovationoftechnologyandtheimprovementofpeople'slivingstandardacceleratethereplacementofconsumerelectronicappliances,resultinginasignificantincreaseofwastehouseholdelectronicappliances(WHEA).ToaddresstheenvironmentalproblemsofWHEA,manycountrieshaveenactedlegislationaccordingtoWHEAmanagement,includingcollecting,processingandrecycling.TheregulationsonthemanagementofWHEAwerealsodraftedinChinaandpilotprogramsofWHEArecyclingmanagementencountereddifficultiesincollectingWHEA.Thesuccessofarecyclingschemeisdependentonpeople'swillingnessofparticipatinginthescheme.ThispaperappliesAjzen'stheoryofplannedbehaviortoseekthemainfactorstoengourageconsumerstoparticipateinWHEArecyclingmanagementinChina.Datafromasurveyconductedwithasampleof633consumersshowthatservicemotivationisthefirstpredictorofparticipationbehaviorintention,followedbyenvironmentalbehaviorattitude,economicmotivation,subjectivenorm,andperceivedbehaviorbarrier.Environmentalknowledgeisfoundnottobethepredictorofbehaviorintentioninthisrecyclingscheme.StudyresultsalsosuggestthatpublicityisthekeysituationalfactorintheWHEArecyclingmanagement.Recyclingnetworkandpolicyhavelittleinfluenceonchangingconsumers'currentbehaviorintentionandparticipation.Implicationsofthefindingsarediscussedandfutureresearchdirectionsaresuggestedintheend.

简介：ThepotentiometricbehaviorofthechelatingionexchangeresinD751containingiminodiaceticacidgroupshasbeenstudiedat25℃bybatchtitrationwithalkaliandacidinwaterandinethanol-watermixturesolvent.Thetitrtioncurves,theamountofchemicallyboundcounter-ionsandinvasiveelectrolytesintheresinphase,andthesolventcontentstheresinhavebeeninvestigated.

简介：在370点的Cu底层上的熔融的双性人的弄湿的行为上的直接电流的效果

简介：在这研究，数字图象关联(DIC)被采用评估牛的蹄角的机械性质。用特定的过程，张力的标本地区包括了4脚底和5从前面的爪和一头成熟黑安格斯奶牛的后面的蹄被切除。在抽取以后，标本被调节与任何一个0%的相对潮湿内容获得角(干燥)或100%(湿)然后使遭到了到单轴的紧张到失败。所有“干燥”、“湿”的蹄角的平均有弹性的模量(E)是2870瑵漠?潦吗？

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简介：Theself-extinguishingbehaviorofkerosenesprayfirewasinvestigatedinacompletelyenclosedcompartmentwiththesizeof3m×3m×3.4m.ThespraywasgeneratedbylocatingoneBETEnozzleatthecenterofthebottomwall.AseriesofsprayfirevideoswereobtainedbychangingBETEnozzletypeandinjectingpressure.Theresultsshowthatsprayfireundergoesfourstages:thegrowthstage,thequasi-steadystage,thestretchstageandtheself-extinguishingstage.Consumptionoflargequantitiesofoxygencausessprayfiretofirstbestretchedandthenquench.Inthisprocess,firebasemigratesawayfromsprayregionandleadstotheemergenceofghostingfire.Ghostingfirepromotestheinstabilityofsprayfireandlargefluctuationofitsheight,whichprovideshelptoitsself-extinguishing.Withincreasingtheinjectingpressureorthenozzlediameter,theself-extinguishingtimedecreases.Itisfoundthattheself-extinguishingtimeisapproximatelyininverserelationwithinjectingflowrate.Additionally,wealsoobservedtheoccurrenceoftwo-phasedeflagrationjustafterignition,anditacceleratesthesprayfiregrowthandinducesalargerfireheightthanthefollowingquasi-steadysprayfire.Thedeflagrationturnsstrongerwithincreasingtheinjectingpressure.

简介：ThecorrosionbehaviorofaweatheringsteelSPA-Candtwoacidresistancesteels(S-TEN1andND)insulfuricacidsolutionwasinvestigatedbyusingpotentiodynamicpolarizationandweightlossmeasurementtechniques.Bothpotentiodynamicpolarizationandweightlossmeasurementtestsindicatedthatcorrosionresistanceofthesethreealloysteelswasasfollows:ND≈S-TEN1>SPA-C.Surfaceanalysisofthecorrodedsamplesconductedaftertheimmersiontestindicatedthattwolayerswereformedonthesubstrates,withtheouterlayercomprisingFeSO_4·H_2Oandtheinnerlayermainlycomprisingironoxides.TheadditionofCu,Cr,andSbrefinedthecorrosionproductsandimprovedtheadhesionabilitybetweentherustlayerandthesubstrate.

简介：Inthispaper,weconsiderthefollowingsecondorderretardeddifferentialequationsx″(t)+cx′(t)=qx(t-σ)-lx(t-δ)(1)x″(t)+p(t)x(t-τ)=0(2)WegivesomesufficientconditionsfortheoscillationofallsolutionsofEq.(1)inthecasewhereq,ι,σ,δarepositivenumbersandcisarealnumber.Andalso,westudytheasymptoticbehaviorofthenonoscillatorysolutions.Ifnecessary,wegivesomeexamplestoillustrateourresults.Atlast,westudyEq.(2)withsomeconditionsonp(t).

简介：INTRODUCTIONPolyhydroxybutyrate(PHB)andit'scopolymerPHBVachievedbythebiosyntheticpathway,hasattractedmuchattentionasanalternationbiodegradablematerials.Theyhavetheexcellentbiocompatibilityandproperdegradationperiodsbyoptimizationofpertinentmolecularweightandcopolymercompositions.

简介：在动态破裂性质和玻璃的失败机制上装载率的效果在我折断的模式下面的增强纤维的合成材料被学习。动态反射苛性的实验被执行因为二装载评价。由在苛性的实验期间测量阴影点的典型尺寸，动态SIF被计算因为不同装载评价。试验性的结果显示动态破裂坚韧与增加装载率，和裂缝显著地调笑增加在高速度的影响下面变得更快。而且由检验裂缝生长线路和破裂表面，装载的率极大地也影响失败机制在，这被显示出微规模。

简介：目的：观察刺血法对偏头痛大鼠行为学及脑干组织c—fos、c-jun基因表达的影响。方法：以硝酸甘油造模偏头痛大鼠模型并予以刺血治疗，观察大鼠行学改变，应用免疫组化技术观察脑干组织c-fos及c-jun基因表达的变化。结果：与模型组及空白组比较，治疗组在刺血治疗后耳红、挠头次数显著减少（P〈0．05），c-fos、c-jun表达明显降低（P〈0．01）。结论：刺血治疗可以改善大鼠偏头痛行为学指标，抑制大鼠c—fos及c-jun阳性表达。

简介：这篇文章的作者学习ut=div的起始边界的值问题的弱解决方案的存在和唯一((|u|+d0)|u|p(x，t)2u)+f(x，t)(0<<2)。

简介：TheannealingbehaviorofAgnanoparticlesinsilicawithandwithoutdefectswasinvestigatedinthisstudy.SilicasampleswithandwithoutArionpre-irradiationwereimplantedwithAgionsandthenannealedattemperaturefrom300to850℃.UV-VISspectroscopyandTEMwereusedtocharacterizetheopticalabsorbancepropertyandsizedistributionofAgnanoparticles,respectively.OpticalabsorbanceresultsshowthattheabsorbanceintensityofSPR(SurfacePlasmonResonance,SPR)peakfromAgnanoparticlesinthesamplewithpre-irradiationisstrongerthaninthesamplewithoutpre-irradiation,whichindicatesthatthedefectsproducedbypre-irradiationpromptthenucleationofAgnanoparticles.Duringannealing,theSPRpeakshiftstoshortwavelengthdirection,asshowninFig.1.