简介：汽油的清洁与它的部件有关，properties.All广告汽油在引擎的注射者，吸入阀门和燃烧房间上建立存款，罐头它显著地降低引擎表演和影响用尽煤气的emissions.In这研究，吸入阀门存款(IVD)和燃烧房间存款(电荷耦合器件)从包含aromatics的21v-42v的燃料的燃烧生产了，石蜡的8v-31v被学习了使用de的福特引擎测试，和特征

简介：

简介：Aseriesofporousresins(PYR)withdifferentcontentofpyridylgroupwereprepared,andtheirphysicalstructureandadsorptionpropertiesonthesteviaglycosideswerestudiedindetail.AftertheselectiveadsorptionofPYRresins,therebaudiosideAcouldbeseparatedfromtheothercomponentsofthesteviaglycosides,andanewmethodforobtainingpurerebaudiosideAisreported.

简介：Thedensityofasphaltwasmeasuredwiththepycnometeranddensitometer.Creeppropertiesoftheasphaltwereinvestigatedwiththebendingbeamrheometerattemperaturesrangingfrom0℃to-36℃.Theasphaltdensitydatausedtocorrelatewiththecreeppropertieswerecalculatedfromtheregressionequationofdensityandtemperature.TheasphaltsampleusedtodeterminethecreeppropertywasagedbythestandardRTFOTtestandthePAVtest.Thetestresultsshowedthattheasphaltdensityhadalinearrelationshipwithtemperaturechanges.Thelogarithmofthecreepstiffnessandtheslopeofthelogarithmofthestiffnessat60secondsalldemonstratedalinearrelationshipwiththedensity,andtheregressioncoefficientofthesedatawasaround0.99.Thecreepstiffnessandtheslopeofthecreepstiffnesscanbecalculatedfromtheasphaltdensityatthesametemperature.

简介：Basedontheinvestigationofthefourdifferentcompositiondentalamalgamal-loysmadebysametechnologricalprocess,therelationbetweenphysicalpropertiesandmicrostructureofthemhasbeendiscussedindetail.Thetheoryfoundationhasbeenexaminedforthedesignofdentalamalgamalloy.Themainconclusionsareasfollows:

简介：Three-componentIPNsweresynthesizedfrompolyurethane/poly(methylacrylateaminoethylmethacrylate)/epoxyresin[PU/P(MADMA)/EP]bysimultaneoussynthesisinterpenetratingpolymernetworksmethod(SINs)andsequentialsynthesisinterpenetratingpolymernetworksmethod(STPNs).Comparingtheeffectofthetwosynthesismethodsonthemorphologyandmechanicalpropertiesofthree-componentIPNs,itwasfoundthatthecompatibilityofthree-componentIPNsdependsonthecomponentratiosandinterpenetratingformation,thedifferentsynthesismethodsmaketheentanglementandinterpenetratingbetweennetworkschanged.ThetensilestrengthofSIPNsisbiggerthanthatofSINs,whiletheelongationatbreakofSINsisbiggerthanthatofSIPNs.Itisfeasibletousestepwisestainingmethodtoobservethemorphologychange.

简介：Threepolymericadsorbentswithhydrogenbondingacceptors,methylamine,N-methyl-acetamideandaminotri(hydroxymethyl)methanemodifiedresinsaresynthesizedfromchloromethylatedX-5resin.AdsorptionisothermsofphenolandtheophyllineontothethreemodifiedresinsandtheoriginalX-5resinfromaqueoussolutionaremeasured.TheresultsshowthatadsorptionofcompoundswithhydrogenbondingdonorontomethylamineandN-methylacetamidemodifiedresinsisenhancedascomparedwiththatontoX-5resin,andadsorptionmechanismbetweentheadsorbentsandtheadsorbatesismainlybasedonhydrogenbondingandhydrophobicinteraction.Whileadsorptionofcompoundswithhydrogenbondingdonorontoaminotri(hydroxymethyl)methanemodifiedresinisloweredascomparedwiththatontoX-5resin,andadsorptionmechanismbetweentheadsorbentandtheadsorbatesismainlybasedonhydrophobicinteraction.

简介：

简介：性质A和一致embeddability是暗示粗糙的Baum-Connes的公制的几何学的观点推测并且Novikov推测。在这篇论文，作者在有限深度的大规模分解下面证明性质A的永久性性质和公制的空格的一致embeddability。

简介：

简介：LetT(C(p,1,q))betbenumberofspanningtreesofcirculantgraphC(p,1,q).InthisnoteweshowthatT(C(p+1,1,q))/T(C(p,1,q))→2，p→+∞.

简介：Theeffectsofthemagneticfieldonthevalencebondpropertyofthedouble-quantum-dotmoleculearenumericallystudiedbythefiniteelementmethodandperturbationapproachbecauseoftheabsenceofcylindricalsymmetryinthehorizontallycoupleddots.Thecalculationresultsshowthattheenergyvalueofthegroundstatechangesdifferentlyfromthatofthefirstexcitedstatewithincreasingmagneticfieldstrength,andtheycrossunderacertainmagneticfield.Theincreasingmagneticfieldmakesthecovalentbondstatechangeintoanionicbondstate,whichagreesqualitativelywithexperimentalresultsandandmakesionicbondstatesremain.Theoscillatorstrengthoftransitionbetweencovalentbondstatesdecreasesdistinctlywiththeincreasingmagneticfieldstrength,whenthemoleculeisirradiatedbypolarizedlight.Suchaphenomenonispossiblyusefulforactualapplications.

简介：有抑制使用橡胶磁性的粉末(DRM)的材料的一根伸臂横梁被调查了。二个方法被选择保持DRM到一根颤动的钢横梁，一个人是由粘合剂结合由磁性的吸引人的力量(叫的DRM横梁)和其它依附DRM(叫的AB-DRM横梁)。与引起由的AB-DRM横梁的抑制性质不同砍抑制材料的变丑，DRM横梁的抑制性质被滑动描绘和抑制材料的内部损失的摩擦损失。作者建立了明确的表达预言DRM横梁的抑制特征，它试验性地被验证。橡胶材料损失因素尾在抑制DRM横梁对AB-DRM横梁的改进上有明确的影响，这被发现。如果尾是比在0.8255附近的批评价值小的，振动振幅的一个有效范围总是在在哪个DRM，横梁能完成比AB-DRM横梁的更好的抑制存在；相反地，如果尾比批评价值大，当幻灯片发生时，有效范围不存在。如此的结果被用来决定DRM的优点和限制并且开发设计指南。

简介：Inthispaperweshowthatinerrorestimates,theconditionnumberκ(T)ofanyinvertiblelinearboundedoperatorTinBanachspacesisminimal.WealsoextendtheHahn-Banachtheoremandotherrelatedresults.

简介：碳nanofibers(CNF)的表面functionalization被执行，ie，CNF第一被氧化然后表面经由一个集会方法是由3-Aminopropyltriethoxysilane(APTES)的silanized。一种新类型高穿抵抗s-CNFs/epoxy合成被制作由在原处反应。FTIR光谱学被用来检测silane在CNF的表面上生产的功能的组的变化。tribological性质和微观结构修改，未修改的CNFs/epoxycomposites分别地被学习。expremental结果显示APTEScovalently成功地被连接到CNF的表面并且在环氧基树脂矩阵改进CNF的分散。磨擦系数和s-CNFs/epoxycomposites的wear率是比在一样的负担下面的u-CNFs/epoxycomposites的那些显然低的。调查也显示磨料穿主要为u-CNFs/epoxy穿机制合成，为在一样的滑动下面合成的s-CNFs/epoxy与细微粘合剂穿穿状况。

简介：Themanufacturetechnologiesoftwokindsofbamboolaminatedpanelandtheirphysical-mechanicalpropertieshavebeenstudiedinthepaper.ThespeciesofbambooaretheD.yunnanicusHsuehetD.Z.LiinYunnanProvinceandP.heterocyclavar.pubescensOhwiinZhejiangProvince.Thedataareofferedinordertoprovideprooftoproducearchitecturalpanelbybamboomaterials.Theresultsshowasfollows:Laminatedbamboopanelcanbeproducedbythereconstructiontechnology,andthemechanicalprope...

简介：我们准备了graphene氧化物(去)可饱和的吸收器(SA)成功地在光的效果下面通过光免职方法，它是的一条简单却有效的途径扔各种各样的材料到底层上，并且调查了影响光免职结果的几个因素去到光纤维结束上，包括(甲基methacrylate)(PMMA)poly，集中，轻紧张，轻模式，和免职预定。有效光学地扔了去保存它GO/PMMA合成形成保证的非线性也被表明。光免职准备的GOSA分别地与调整深度和6%和40%的nonsaturable损失显示出优异可饱和的吸收性质。

简介：Thispaperdealswiththeblow-uppropertiesofsolutionstothesystemsut=Δu,vt=ΔvinBR×(O,T)subjecttononlinearboundaryconditionsδu/δη=v^p,δu/δη=u^q,inSR×(O,T).Itisshownthatundercertainconditionsthesolutionblowsupatafinitetimeandtheblow-uponlyoccursontheboundary.Theself-similarsolutionfortheone-dimensionalcasehasbeenstudied.Moreover,theexactblow-upratesarealsoderived.

简介：Objective:AnovelPVA-CaAlgcompositematerialbypolyvinylalcohol(PVA)andsodiumalginate(SA)wasfabricatedtoinvestigatethefeasibilityservingasascaffoldfortissueengineeringandtofindoutthemostidealproportionaccordingtotheirproperties.Methods:Film,graininessandspongescaffoldsofPVA-CaAlgwerefabricatedbythreedifferentmethods.Watercontentandswellingratioweretested.SEMwasusedtoobservetheconfigurationofthecrosssection.Results:DifferentproportionalscaffoldscouldbeobtainedwithdifferentPVAmolecularweight,alcoholysisdegreeanddifferentSAdosages.Thewatercontentofdifferentscaffoldsrangedfrom48%to93%andshoweddifferentinnerconfigurationwithswellingratiobetween120%and470%.SEMprovedthatdifferentcompositematerialshaddifferentporousstructures.Conclusion:AscaffoldfortissueengineeringwithhighwatercontentandproperswellingratiocanbefabricatedusingPVAandSA.Theporousstructureshowspotentialintissueengineeringandcellculture.

简介：直角的多匹配的追求(OMMP)是直角的匹配追求(OMP)的自然扩展.We作为M1是一个整数的OMMP(M)与参数M表示OMMP。OMP和OMMP(M)之间的主要差别是OMMP(M)每重复选择M原子，当OMP仅仅把一个原子加到最佳的原子集合时。在这份报纸，我们学习直角的多匹配的追求的表演在下面裂开。特别地，我们看那测量矩阵A是否满足(25年代，1/10)有12能恢复的M0=的-RIP,OMMP(M0)在s重复以内的s稀少的信号。我们而且证明OMMP(M)能为M的一个大班在O(s/M)重复以内恢复s稀少的信号。[从作者抽象]