Analytical Algorithms for the Blend Ratios by Fibre-bundle Tensile Curves Part Ⅱ: Calculations of the Modulus Method and the Percentage Method

IntroductionTheblendratioofyarnsandfabricscanbemeasuredbyfibresolution[1,2 ] ,imageanalysisofmicroscopy[3 ,4] ,infraredspectroscopy[5,6] ,X raydiffraction[7,8] ,thermo analyses[9] andothermethods[10 ,11,12 ] .However ,thetensiletestsofsinglefibresorfibreassembliesarethenecessaryandthemost popularmeasurementintextileprocessingand qualitycontrol[13 ,14 ] .Thereisevidentrelationshipbetweenthetensile propertiesandtheblendratioofblendedfibreassemblies[15,16,17] .Therefore ,whynottopredicttheblendr…     

Synthesis and Crystal Structure of New Supramolecular Adducts of[PtCl_6]~(2-) with Cucurbit [7] uril:[(H_3O)_2 [PtCl_6]_3 [C_(42)H_(42)N_(28)O_ (14)_2·H_2O

0　IntroductionCucurbit [n]urils (Qn ,Fig .1.)arecyclicoligomersofnunitsofglycolurillinkedby 2nmethylenebridgesderivedfromformaldehyde.Theypossessacharacteristicannularshape,withtwoidenticalcarbonyl fringedportals[1 ,2 ] .Themostcom moncucurbituril,Q6 ,wasreportedtoaccommodatedifferentguestssuchaswater[3] ,THF[4 6] ,xenon[7] ,pyridium[8] andp xylyenediammonium[3] ionsandsoon .ThealkyldiaminesthreadthroughtheQ6 ,andformtherotaxanestructures[9 1 3] .Metalions[1 ,3 6 ,1 4 ,1 5] andclusters[8,…     

Algebraic characterization of RNA operations for DNA-based computation

In 1994 ,AldemansuccessfullyintroducedDNA basedcomputingasanapproachtosolvingmathemat icalproblems[1] ,whichusesDNAasadatacarrierandtechniquesofmolecularbiologytooperateonDNA .FollowingAdleman ,DNAalgorithmshavebeenfoundtosolveother problems :expansionofsymbolicdeterminants[2 ] ,matrixmultiplication[3] ,addition[4 ] ,exascalecomputeralgebra[5] ,andsoon .Liptonetal.introducedanewmethodforcon structionofbinarynucleicacidlibraries[6 ] ,andtheyintroducedRNAasamoleculeforcomputationtopre sent…     

Distribution and correlation analysis of wildfire and weather data in Japan

Theoccurrence ,spreadanddistributionofwild firesareaffectedbyhumanactivities,weatherandfu eltype ,ortreespecies ,etc .Inalongterm ,thefre quency sizedistributionofwildfiressatisfiesthepow er lawrelation[1— 4 ] connectedwithself organizedcriticality[5,6 ] ,whichisfoundincomplexsystemssuchastheInternet[7— 8] ,earthquake[9] ,epi demics[10 ] ,andsoon .Thedistributionsofverylargefiresandverysmallfiresdeviatefromthepower lawwithheavy tail[1— 4 ,12 ] andflat head[13] phenomena ,respectively .Obser…     

Atomic-scale computer simulation for early precipitation process of Ni_(75) Al_x V_(25-x) alloy with intermediate Al composition

SincethepublicationoftheclassicalworkofChan[1] andHilliard[2 ] ,therehavebeenextensiveex perimentalandtheoreticalstudiesonthethermody namicsandkineticsofprecipitation process .Recentresearchworkhasbeenconcentratedoncomputersimulation ,mostofwhichwerereviewedbyChen[3] .Mostcomputersimulationswerecarriedoutinbinarysystems[4— 8] .However ,theternaryormulti compo sitionsystemsaremoreimportantinindustries .MechanicalpropertiesofNi Albasedsuperalloyscanbestronglyaffectedbythemorphology ,distribu …     

Synthesis and X-ray crystal structure of a new manganese 18-metallacrown-6

0　IntroductionThemetalionsinmetallamacrocylesformedbysupramolecularself assemblycantaketrigonal,square planar,andtetrahe dralconfiguration[1 ,2 ] .Metallacrownisaspecialclassofmetalla macrocyle,theyareanalogoustocrownethersinbothstructureandfunctionexceptthatthemetalionsarenowtakingthepositionsofcoordinationatomsincrownether[3,4] .Themetallacrownswithdifferentnumberof [M—N—O]repeatunithavedifferentcavitysizes,suchas 9 MC 3[5 7] ,12 MC 4 [4,8 1 4 ] and 15 MC 5 [1 5] .Thereportedazameta…     

负实零点整函数的一种推广

零点分布与增度的关系是整函数论的一个中心问题;本文的目的是讨论零点分布在κ条射线上的整函数的零点与增度的关系,这是负实零点整函数的一种推广。 对于负实零点的整函数,G.Valiron[1]、E.C.Titchmarch[2]、A.Pfluger[3]、R.E.A.C.Paley与N.Wiener[4]、H.Delange[5],[6]、M.Heins[7]、N.A.Bowen[8]、Bowen与A.J.Macintyre[9]等都研究过函数的模的对数的渐近值与零点个数的渐近值之间的关系,Valiron[1]、M.E.Noble[10]研究了零点的辐角以π为极限的整函数,     

一类具有变量时滞的非线性中立型微分方程组解的稳定性(1)

文[1]、[2]利用A.M.方法研究了一类线性的和非线性的中立型时滞系统的渐近稳定性,文[3]利用文[4]的积分不等式,对一类具有变量时滞的非线性中立型微分方程组建立了解的稳定性和渐近稳定性充分判别定理,改进并推广了[1],[2]的结果.本文借助于[5]中建立的不等式,结合[6]和[3]所使用的方法推广了文[3]的结果,使文[3]所适用的函数类成为本文之一特款.文[7]将文[3]的结论推广到方程右端具有多项式控制的情形,笔者又进一步推广了文[7]的结论,这一内容将另交给出。     

Optimal portfolio rules with habit formation and preference for wealth

0　IntroductionWhenthepricesofriskyassetssatisfythegeometricBrow nianmotionandtheinvestor’sutilityfunctionisamem beroftheHARAfamily ,Mertoncompletelysolvedtheconsump tionportfolioproblem [1 2 ] .Buttheequitypremium puzzle[3] andtherisklessinterestratepuzzle[4] meanthatthesimpleHARAfamilyu tilityfunctioncannotdescribetheinvestor’scomplexbehavior,sotheutilityfunctionhastobeextendedtomoregeneralcase.Zoufirstintroducesthepreferenceforwealthbylettingthewealthasanargumentofutilityfunction[5] …     

物资采购工作的特点及要求

~~Theoretical study of Structural and analytical potential energy functions of GaN[1]D.L.Luo,D.Q.Meng,Z.H.Zhu,Acta Phys.Sin.52[2003]2438. [2]H.Y.Wang,Z.H.Zhu,Chin.Phys.12[2003]154. [3]P.Waltereit,O.Brandt,A.Trampert,H.T.Grahn,J.Menniger,M.Ramsteiner,M.Reiche,K.H.Ploog,Nature406[2000]865. [4]Z.H.Zhu,H.G.Yu,Molecular structure and molecular potential function,Science Press,Beijing1997.…     

Effects of [S] and T[O] on strength and toughness of high purification low alloy steel plates

The effect of[S] on strength and toughness of low alloy steel plates in which sum of[P],[N], T[O] is less than 8×10-5 and the effect of T[O] on strength and toughness of the steel plates in which sum of[S],[P],[N] is less than 7×10-5 were investigated. It is found that the strength of the steel plates decreases with increasing[S] content when[S] is less than 4×10-5. When[S] varies within the range of 4×10-5-1.2×10-4,[S] has no significant effect on strength of the steel. The strength of the steel plates increases with increasing T[O] content when T[O] is less than 30×10-6, but decreases with increasing T[O] when T[O] is more than 3×10-5.The difference between the LETT in plate length direction and LETT in width direction decreases with decreasing[S] content. However, even when[S] is decreased to 9×10-6, the difference of the LETT is still 16℃. When T[O] varies between 1.8×10-5 and 5.2×10-5, the low temperature impact toughness of the steel plates slowly decreases with T[O] increasing. When T[O] increases to more than 5.2×10-5, the low temperature toughness of the steel rapidly decreases with increasing T[O] content.     

S-单式环的变换条件

文献[1]讨论了一类S—单式环的交换性条件,推广了文献[2]和文献[3]中的某些结论.在文献[1]的基础上继续讨论了此课题.得到了比文献[1]中一些结论更为广泛的结果和新的结论.     

Purification and Inhibition Fungal Growthof Chitinases from Vibrio pacini

0　IntroductionChitinases (EC3.2 .1.14 )areenzymesthathydrolyzechitin ,ahomopolymerofβ 1,4linkedN acetylglucosamine .Thecompletedegradationofchitinchainsisusuallyachievedbyacom plexofenzymesactingtobreaktheinitialchainsintochitooligosac charides .Theseparateenzymesthenacttobreaktheseoligomersdownintotheircomponentmonomers.Thechitinolyticsystemex istsinawiderangeoforganisms,includingbacteria[1 ] ,fungi,higherplants[2 ] ,insects[3] ,crustaceans[4] andsomevertebrates,andplaysvariousrolesbothin…     

文后参考文献书写规范

在引文处按论文中引用文献出现的先后以阿拉伯数字连续编号,置于方括号内.一种文献被反复引用者,用同一序号标示,需表明引文具体出处的(如页码或章、节、篇名),可在序号后加圆括号注明.1引用专著[M]、论文集[C]、学位论文[D]、研究报告[R]格式[序号]主要责任者.文献题名[文献类型标识].出版地:出版者,出版年.起止页码.示例[1]周振甫.周易译注[M].北京:中华书局,1991.2引用期刊文章[J]格式[序号]主要责任者.文献题名[J].刊名,年,卷(期):起止页码.示例[3]何龄修.读顾城《南明史》[J].中国史研究,1998,(3):167~173.3引用论文集中的析出文献…     

文后参考文献书写规范

在引文处按论文中引用文献出现的先后以阿拉伯数字连续编号,置于方括号内.一种文献被反复引用者,用同一序号标示,需表明引文具体出处的(如页码或章、节、篇名),可在序号后加圆括号注明.1引用专著[M]、论文集[C]、学位论文[D]、研究报告[R]格式[序号]主要责任者.文献题名[文献类型标识].出版地:出版者,出版年.起止页码.示例[1]周振甫.周易译注[M].北京:中华书局,1991.2引用期刊文章[J]格式[序号]主要责任者.文献题名[J].刊名,年,卷(期):起止页码.示例[3]何龄修.读顾城《南明史》[J].中国史研究,1998,(3):167~173.3引用论文集中的析出文献…     

Research of the streaming media system architecture based on net-RAID

0　IntroductionRecentdevelopmentsincomputersystemsandhigh speednetworkshavepropelledtheresearchonmultimediasys temsandstimulatedtheemergenceofstreamingmediaapplica tions .ThistrendispartlypromptedbythewidedistributionofsoftwarefromindustrysuchasRealNetworksandMicrosoftWindowsMedia,andtheadoptionofapplicationlevelprotocolssuchasRTP[1 ] andRTSP[2 ] forstreamingmediatransmission .Inthetypicalstreamingmediasystem[3] ,thestoragede vicesareattachedprivatelytothestreamingmediaserver.Un fortunate…     

Sol-gel-coated calix[4]arene fiber for solid-phase microextraction

Solid phasemicroextraction (SPME) [1 ] isaninnovativesamplepreconcentrationtechniqueandhasgainedawidespreadacceptanceinmanyareas.Uptonow ,thedevelopmentofnewfibercoatingsisstillacrucialaspect.Calixarenesareregardedasthethirdgenerationofsupramoleculesnexttocrownethersandcyclodextrins.TheyhavebeenwidelyusedandtheirapplicationsasGC[2 ] ,HPLC[3] andCE[4] stationaryphasehaveinterpretedspecialselectivity .Inthisstudy ,thesynthesized 5 ,11,17,2 3 tetra tert butyl 2 5 ,2 7 diethoxy 2 6 ,2 8 dihyd…     

Effect of Heat Treatment on Structures and Properties of Polyurethane Blend Ultrafiltration Membranes

IntroductionMembraneseparationisanewseparationprocessthatreplacesamajorityoftheconventionalseparationsystemsanditisnowwidelyusedinmanyindustrialareassuchasfoodandbeverage ,pulpandpaper,andtextileindustries.Polyurethane (PU )isoneofthenewmembranematerialsthathaveattractedincreasingattention[1] .K .Rzesautek[2 ] studiedtheextractionandtransportofvariousorganicdyesthroughthinether typePUmembranes.U .S .AithalandS .B .Harogoppao[3 ,4] studiedthediffusionortransportofsomeindustrialsolventsthrou…     

Studies on the Synthesis and Electron Spectra of 2,6-Bis(p-Aminophenyl)Benzo[1,2-d;5,4-d'''']Bisoxazole

0　IntroductionBenzoxazolesareaveryinterestinggroupofaromatichetero cycliccompoundsbecauseoftheiropticalapplicationssuchasphotoluminescents,whiteningagents,laserdyeandfluorescentprobes[1 ,2 ] .Furthermore,thebenzoxazoleunitsareusefulforotherimportantcasessuchasintermediatesfororganicsynthesesandtherapeuticmaterials[3] .Recently ,muchresearchhasbeenfocusedonintroducinganaromaticbenzoxazoleorbenzobisoxazoleunitintononlinearopticalmaterialstoimprovethermalandphoto chemicalstabilities[4 6] .Benzob…     

Asymptotic behavior of the shock solution for a class of nonlinear equations

Recently thenonlinearsingularly perturbedproblemhasbeeninvestigatedintheinternationala cademiccircles[1] .Approximationmethodshavebeendevelopedandrefined ,includingthemethodofaver aging ,boundarylayermethod ,matchedasymptoticexpansion ,andmultiplescales .ManyscholarssuchasO’MalleyJr .[2 ] ,Boh啨[3] ,Butuzovetal.[4 ] ,Kel ley[5] ,andMizoguchietal.[6 ] havedoneagreatdealofwork .UsingthemethodofdifferentialinequalityandothersMoconsideredalsoaclassofsingularlyperturbednonlinearboundaryvaluepro…