简介：AnewcoexistingamphibolepairwasrecentlyfoundintheJianshanirondeposit,LoufanofShanxiProvince,China,ElectronmicroprobeanalysisshowsthatthecoexistingpairiscomposedofgrueneriteK0k.001(Na0.027Ca0.073Mn0.031Fe1.801^2+)1.932(Fe2.948^2+Mg1.964Ti0.002Al0.087)5Si8.069O22.10(OH)2andferropargasite(K0.135Na0.461)0.596(Na0.088Ca1.853Mn0.005Fe0.072^2+)2(Mn0.005Fe2.789^2+Mg0.875Ni0.021Fe0.499^3+Al0.812)5(Si6.103Al1.897)8O22.00(OH)2.Thetwokindsofamphibolesoccurinamphiboleschistnotonlyasseparatephenocrysts,butalsoarecombinedtoform"single-crystal"phenocrystsintheformoftopotacticintergrowthswiththecommonc-andb-axes.Theboundarybetweentopotacticgrueneriteandferropargasiteisopticallyandchemicallysharp.Incomparisonwiththecoexistingferromagnesianamphibloeandcalcicamphibolepairdiscoveredbypredecessors,thenewlydiscoveredpairhaslowerMg/Feratiosandwidermiscibilitygaps.

简介：各种各样的途径为解决许多连续全球优化问题被开发了。但是直到现在，更少的工作被奉献给由于固有的困难解决非线性的整数编程问题。这篇论文设法把一般非线性的整数编程问题转变成一个equivalent'专辑连续全球最小化问题。因此，任何有效全球优化算法能被用来解决非线性的整数编程问题。这结果将也在全球优化上支持研究。我们在场一个间隔Branch-and-Bound算法。数字实验证明这条途径是有效的。(作者摘要)11个裁判员。

简介：pair表示“一对;一双”。由两个部分组成的某物表示数量时常用apairof…来表示“一双……;一副……;一对……”等。例如:

简介：充满的功能方法是为连续全球优化的有效算法的一个班。在这份报纸，一个新充满的函数方法被介绍并且过去常解决整数编程。第一，分离优化的一些基本定义被给。然后，一个算法和几个测试问题上的这个算法的实现被显示出。计算结果证明算法是有效的。[从作者抽象]

简介：OneoftheprincipaldisadvantagesofOrthogonalFrequencyDivisionMultiplexing(OFDM)isverysensitivetocarrierfrequencyoffset.Theintegerfrequencyoffsethasnoeffectontheorthogonalityamongthesubcarriers,butitcausesacircularshiftandphaserotationofthereceiveddatasymbolssequence,resultinginaBitErrorRate(BER)of0.5.Inthispaper,anovelintegerfrequencyoffsetestimatorforOFDMisderivedbasedonmaximumlikelihoodestimationtechniqueandexplorationofthedifferentialrelationbetweentwoconsecutiveOFDMdatasymbolsequencesinfrequencydomain.ItsperformanceiscomparedwiththeconventionalmethodbycomputersimulationsfortheadditivewhiteGaussiannoisechannelandamultipathfadingchannel.Simulationresultsshowthattheperformanceoftheproposedestimatorisbetterthantheconventionalestimator.

简介：Inthispaper,theperfectdyadicbinarysequencepairwithone-valuedyadiccorrelationfunctionsispresented.Thatis,theperfectdyadicbinarysequencepairisaperfectdiscretesignal,foritsdyadicrelativefunctionisδ-function.Thetransformationfeaturesandsomeexistingadmissibilityconditionsofperfectdyadicbinarysequencepairarediscussed,andthepropertiesforthiskindofcodeinWalshtransformationspectrumandweightspectrumarealsoanalyzed.Fromabove,Itisfoundthattheperfectdyadicbinarysequencepaircaneasilydifferentiatefromitsdyadicshifting.Sothesegoodsignalscanusedinengineeringassynchronizationcode,multi-usercodeandsoon.

简介：象在1975一样早，Shamos和Hoey首先给了O(nlgn)-timedivide-and-conquer算法(嘘算法在短)为发现点的最靠近的对的问题。在联合的一个过程，在一些点需要被计算的3n之间的欧几里得距离，计算距离的全面复杂性当时因此是3nlgn。因为距离的计算与另外的基本操作相比是更昂贵的，怎么嘘改善从计算距离的复杂性的方面的算法被考虑。在1998，周，熊和朱由把这复杂性归结为2nlgn改进了SHalgorithm。在这篇论文，我们做进一步的改进。计算距离的Theoverall复杂性被归结为(3nlgn)/2，它仅仅是一半SHalgorithm的。

简介：ThispaperdiscussesproblemIEP:Givenn×mmatrixXandm×mdiagonalmatrixA,findann×nmatrixAsuchthatAX=XA.ThenewsolvablilyconditionsfortheproblemIEPareobtained.TheeigenvaluedislribulaionofthesolutionsfortheproblemIEParedescribedindetail.

简介：Inthispaper,theglobalandlocallinearindependenceofanycompactlysupporteddistributionsbyusingtimedomainspaces,andofrefinablevectorsbyinvariantlinearspacesareinvestigated.

简介：　　（1）考查学生对会话活动的兴趣,（3）有54%的学生喜欢与外向性格的同学一组会话,笔者将如何解决低水平学生的搭配与如何解决活动设计问题

简介：教师在做Pair Work时可不必拘泥于让学生固定和谁一起练习,活动时对学生提出不同要求,7. 增加课堂活动的趣味性 　　帮助差生更好地进行Pair Work 的最终目的是为了更好地提高其语言能力

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简介：Fourturbulencemodels,namely,thebasicandnonlinearstress-transportmodelsandthebasicandanisotropick-εmodels,havebeentestedinthecaseofinteractionbetweenalongitudinalvortexpairandaflat-plateboundarylayer.TheresultsoftheirpredictionswerecomparedwithMehtaandBradshaw’smeasure-ments.Inthispaper,partoftheresultsinvolvingthoseofthenonlinearstress-transportmodelandanisotropick-εmodelarepresentedanddiscussed.

简介：Hartree-Fock-Roothaan(HFR)calculationsforgroundstatesofsomeatoms,i.e.He,Be,Ne,Ar,andKrhavebeenperformedusingminimalbasissetsofSlatertypeorbitals(STOs)withintegerandnonintegerprincipalquantumnumbers(integern-STOsandnonintegern-STOs).Theobtainedtotalenergiesfortheseatomsusingminimalbasissetsofintegern-STOsareingoodagreementwiththoseinthepreviousliterature.Ontheotherhand,forthecaseofminimalbasissetsofnonintegern-STOs,althoughthecalculatedtotalenergiesoftheseatomsagreewellwiththeresultsinliterature,somestrikingresultshavebeenobtainedforatomsArandKr.OurcomputationalresuitsfortheenergiesofatomsArandKrareslightlybetterthanthoseinliterature,byamountof0.00222and0.000054a.u.,respectively.TheimprovementintheenergiesofatomsArandKrmayresultfromtheefficientcalculationsofone-centertwo-electronintegralsovernonintegern-STOs.Forsomeatomicionsintheirgroundstate,HFRcalculationshavebeencarriedoutusingminimalbasissetsofnonintegern-STOs.Theobtainedtotalenergiesfortheseatomicionsaresubstantiallylowerthanthoseavailableinliterature.

简介：ThereactionofNdCl3withlithiummethylnaphthalenein1:2moleratioinTHFgeneratesblackpowder.Thepowderreactswithcyclooctatetraene（COT）inTHFtoformthetitlecomplex.[Li（THF）4Nd（C8H8）2]·2THFcrystallizesinthemonoclinicspacegroupP2/cwithunit-celldimensionsa=1.7858（7）nm,h=1.3243（4）nm,c=1.8086（6）nm.β=106.52（4）°,V=4.10nm3andDc=1.268g/cm3forZ=4.F（000）=1660,R=0.0774,Rn=0.0733.Thecomplexconsistsofdiscreteion-pairandtwoTHFmoleculesadduct.Intheanion,theneodymiumatomiscoordinatedbytwoCOTrings.ThestructureofthecationshowsthatthelithiumatomisattachedwithTHFmoleculesonly.