简介：Thepaperinvestigatestheh-pversionoftheinfiniteelementmethod.Anexponentialconvergencecanbeabtainedbyasmallamountofcomputingwork.

简介：Inthispaper,acompleteclassificationofarc-transitivecubicgraphsoforder4pisgiven.

简介：Inthepresentpaper,westudycertaindifferentialinequalitiesinvolvingp-valentfunctionsandobtainsufficientconditionsforuniformlyp-valentstarlikenessanduniformlyp-valentconvexity.Wealsoofferacorrectversionofsomeknowncriteriaforuniformlyp-valentstarlikeanduniformlyp-valentconvexfunctions.

简介：Weintroducethecategoryoft-foldmoduleswhichisafullsubcategoryofgradedmodulesoveragradedalgebra.Weshowthatthissubcategoryandhencethesubcategoryoft-Koszulmodulesarebothclosedunderextensionsandcokernelsofmonomorphisms.Westudytheone-pointextensionalgebras,andanecessaryandsufficientconditionforsuchanalgebratobet-Koszulisgiven.Wealsoconsidertheconditionssuchthatthecategoryoft-Koszulmodulesandthecategoryofquadraticmodulescoincide.

简介：本标准规定了亚磷酸三（2，4-二叔丁基苯基）酯（简称抗氧剂168）的要求，试验方法，检验规则，标志、包装、运输及贮存。

简介：1范围本标准规定了四[β-二叔丁基-4-羟基苯基）丙酸]季戊四醇酯（简称抗氧剂1010）的要求，试验方法，检验规则，标志、包装、运输及贮存。

简介：Theglassytransitionofthepolyethyleneterephthalate(PET)sampleswhichhavebeensubjectedtosolventinducedcrystallization(SINC)wasinvestigatedbymodulateddifferentialscanningcalorimetry(MDSC)anddensitymeasurement.Thedif-ferentialofheatcapacitysignal,dC_p/dTfromMDSC,wasusedtomonitortheSINCprocess.ItrevealsthattheT_gtemperatureshiftstohighervaluewiththeadvancementofSINC.Whenthetoluene-immersingtimewaslonger(168h),thedetectionofT_gbecomemoredifficult,becausesomesmallerpeaksemergedatthelowertemperaturesandtheseareexplainedasthemovementofsmallsegmentsintheamorphousregion.TheseobservedresultsareduetothemorphologyandstructureintroducedbytheSINCprocess.

简介：Theone-dimensionalsuper-symmetricferromagnetict-JmodelisstudiedviathethermalBetheansatz.AnalyticexpressionsofthefreeenergyforT→Oareobtained.AnewcriticalbehaviourbeyondtheuniversalclassofLuttingerLiquidsisfoundinthissystem.

简介：由T表示复杂射影的花托，我们能在ℂℙ5嵌入表面ℂℙ1×T。在这篇论文，我们计算这表面的分支曲线的补充的基本的组。因为嵌入不是“足够宽大”的，嵌入的表面不属于基本的组是几乎可解决的表面的班：为这些组成立为的一个性质“足够宽大”嵌入钟声。在另一方面，作为它是为非简单地连接的表面的这计算的第一个例子，这个组的结构(是出现在这篇论文)关于任何表面的那些基本的组的结构产生conjecture的延期。

简介：Inthispaper,weshallestablishthateachweaksolutionofp-harmonictypesystemswiththegradientsbelowthecontrollablegrowthbelongsto,HldercontinuityspaceswithanyHlderexponenta∈[0,1).Furthermore,wecanobtainthatthegradientsofthecorrespondingweaksolutionsalsobelongtolocallyHldercontinuityspaceswithsomeHlderexponent.

简介：InthispaperL^p-L^qestimatesforthesolutionu(x,t)tothefollowingperturbedhigh-erorderhyperbolicequationareconsidered,(ρπ--a△)(ρπ--b△)u+V(x)u=O,x∈R^n,n≥6,ρ1eu(x,O)=O,ρ^3eu(x,O)=f(x),(j=O,1,2).WeassumethattheotentialV(x)andtheinitialdataf(x)arecompactlysupported,andV(x)issufficientlysmall,thenthesolutionu(x,t)oftheaboveproblemsatisfiesthesameL^p-L^qestimatesasthatoftheunperturbedproblem.

简介：InanefforttoutilizeNMRtechniquefortheanalysisofthestructuralcomponentsofwoodandbiomassessuchaslignin,wemadeacomparativestudyoflignincontentsofseveraltypesoflignocellulosicmaterialsbothbeforeandafterenzymatichydrolyses.Tothisend,EucalyptusGlobulus,Norwaysprucethermomechanicalpulp(TMP)cornstoverandEucalyptuskraftpulpwereball-milledandtreatedwithcellulasetopreparematerialswithhighlignincontents.Thesematerialswereanalyzedvia31PNMRinionicliquids.Theresultsshowthatthecontentsofvariousfunctionalgroupsforthelignocellulosicmaterialsafterenzymatichydrolysesaregenerallyinagreementwiththosefromtheircorrespondingenzymaticmildacidolysisliginins(EMALs),indicatingthat31PNMRanalysisoflignocellulosicmaterialsinionicliquidsisapromisingmethodforquantitativecharacterizationoflignocellulosicmaterials.

简介：利用天然气脱硫厂的酸气、氢氧化钠、对二氯苯和助剂磷酸钠，在六甲基苯磷酰三胺溶剂中，常压下缩聚４～６小时，制备了线型结晶性高分子量聚苯硫醚（ＨＭＷＰＰＳ）。该方法具有的明显优点是：设备简单、容易操作、活性高、溶剂稳定、产品收率高、成本低、适宜于大规模工业生产。

简介：Inthispaperwewillshowthatifanapproximationprocess{Ln}n∈Nisshapepreservingrelativetotheconeofallk-timesdifferentiablefunctionswithnon-negativek-thderivativeon[0,1],andtheoperatorsLnareassumedtobeoffiniterankn,thentheorderofconvergenceofDkLnftoDkfcannotbebetterthann2evenforthefunctionsxk,xk+1,xk+2onanysubsetof[0,1]withpositivemeasure.Takingintoaccountthisfact,wewillbeabletofindsomeasymptoticestimatesoflinearrelativen-widthofsetsofdifferentiablefunctionsinthespaceLp[0,1],p∈N.

简介：Inthispaper,thenotionofp-waveletpacketsonthepositivehalf-lineR+isintroduced.Anewmethodforconstructingnon-orthogonalwaveletpacketsrelatedtoWalshfunctionsisdevelopedbysplittingthewaveletsubspacesdirectlyinsteadofusingthelowpassandhigh-passfiltersassociatedwiththemultiresolutionanalysisasusedintheclassicaltheoryofwaveletpackets.Further,themethodovercomesthedifficultyofconstructingnon-orthogonalwaveletpacketsofthedilationfactorp>2.

简介：有限的组G的亚群H被称为TI亚群如果H∩H~x=1或Hfor所有x∈G。在这篇论文，为有限p组，所有abeliansubgroups在是TI亚群的一个完全的分类，被给。

简介：

简介：Inthispaper,weestablishtheLp(Rn+1)boundednessforthecommutatorsofsingularintegralsassociatedtosurfacesofrevolution,{(t,φ(|t|)):t∈Rn},withroughkernels?∈L(logL)2(Sn-1),ifφ(|t|)=|t|.

简介：主要研究具有性质(P)环的同调维数,所得的结果推广了文[1]的结果.

简介：讨论具有非线性耗散项P系统的Caucby问题．在一些较为合理的假设下．证明了其光滑解的整体存在性及其解的奇性形成．