简介:ThenotionsoffuzzydotidealsandfuzzydotH-idealsinBCH-algebrasareintro-duced,severalappropriateexamplesareprovided,andtheirsomepropertiesareinvestigated.Therelationsamongfuzzyideal,fuzzyH-ideal,fuzzydotidealandfuzzydotH-idealsinBCH-algebrasarediscussed,severalequivalentdepictionsoffuzzydotidealareobtained.Howtodealwiththehomomorphicimageandinverseimageoffuzzydotideals(fuzzydotH-ideals)arestudied.Therelationsbetweenafuzzydotideal(fuzzydotH-ideal)inBCH-algebrasandafuzzydotideal(fuzzydotH-ideal)intheproductalgebraofBCH-algebrasaregiven.
简介:让m和n被固定的、积极整数和V.A。Menegatto(相应作者)发电子邮件:menegatt@icmc.usp.brC.P。Oliveira电子邮件:oliveira@unifei.edu.br言论集P。Peron电子邮件:apperon@icmc.usp.br参考书[1]。伯格,C.,Christensen,J.P.R.,Ressel,P.:半组,上的泛音分析积极明确、相关的函数的理论,在数学的毕业生文章,100,Springer-Verlag,纽约,1984[2]。Christensen,J.P.R.,Ressel,P.:复杂Hilbert范围上的积极的明确的核。数学。Z.,180(2),193201(1982)[3]。菲茨杰拉德,C.H.,Micchelli,C.A.,Pinkus,A.:保存积极的半的家庭的功能明确的矩阵。线性代数学Appl,221,83102(1995)[4]。赫,C.S.:Fonctionsopérantsurlesfonctionsdéfinies积极。安。Inst。Fourier(格勒诺布尔),13,161180(1963)[5]。角,R.A.:无穷地可分的矩阵和核的理论。Trans。Amer。数学。Soc,136,269286(1969)[6]。角,R.A.,约翰逊,C.R.:矩阵分析,剑桥大学出版社,剑桥新的约克,1985[7]。陆,F.,阳光,H.:在学习理论的积极的明确的点产品核。副词。Comput。数学,22(2),181198(2005)[8]。Menegatto,V.A.,Peron,A.P.,Oliveira,C.P.:有条件地积极的明确的点产品核。J。数学。肛门。Appl,321(1),223241(2006)[9]。Vasudeva,H.:积极明确的矩阵和绝对单音的补品功能。印度J。纯Appl。数学,10(7),854858(1979)[10]。Cucker,F.,Smale,S.:在学习的数学基础上。公牛。Amer。数学。Soc。(N.S),39(1),149(2002)[11]。Smola,J.S.,óvári,Z.L.,威廉森,R.C.:有点产品核的规则化,在在神经信息处理系统的进展13,ToddK。Leen,ThomasG。Dietterich,VolkerTresp(版本),从神经信息处理系统的报纸(捏)2000,丹佛,公司,美国,MIT出版社,2001[12]。Rudin
简介:Wereviewrecentadvancesinthefieldofquantumdotlasersonsilicon.Asummaryofdeviceperformance,reliability,andcomparisonwithsimilarquantumwelllasersgrownonsiliconwillbepresented.Weconsiderthepossibilityofscalable,lowsize,weight,andpowernanolasersgrownonsiliconenabledbyquantumdotactiveregionsforfutureshort-reachsiliconphotonicsinterconnects.
简介:Quantumdotlasershaveexcellentcharacteristicssuchastimperaturestabilityofthresholdcurrentandultra-highmaterialgain.Quantumdotstructuresfabricatedbyself-organizedgrowthhavehighcrystallineperfection,highquantumyieldofradiativerecombinationandhighsizehomogeneity.Mainadvantagesandoperatingpropertiesofquantumdotalsersfabricatedbyself-organizedgrowtharebrieflyintroduced.
简介:Weproposeaschemetoengineeranon-localtwo-qubitphasegatebetweentworemotequantum-dotspins.Alongwithone-qubitlocaloperations,onecaninprincipalperformvarioustypesofdistributedquantuminformationprocessing.Theschemeemploysaphotonwithlinearlypolarisationinteractingoneaftertheotherwithtworemotequantum-dotspinsincavities.Duetotheopticalspinselectionrule,thephotonobtainsaFaradayrotationaftertheinteractionprocess.Bymeasuringthepolarisationofthefinaloutputphoton,anon-localtwo-qubitphasegatebetweenthetworemotequantum-dotspinsisconstituted.Ourschememayhasveryimportantapplicationsinthedistributedquantuminformationprocessing.
简介:我们调查一个戒指系统联合到在一个维的拓扑的超导体nanowire的结束限制的二个Majorana界限状态的一个量点(QD)填写了的电子运输里面。由调节通过戒指穿的磁性的流动,当nanowire在它的拓扑的阶段时,我们考虑的模型系统能被交换进状态与或没有零精力的模式。我们发现在传导力光谱的Fano侧面为这二种不同状况由于在界限和连续统状态之间的干扰展出显著地不同的特征,它能因而被用来检测Majorana零精力的模式。作为磁性的流动的一个周期的函数,最有趣地,传导力看2频率二个Majorana界限状态什么时候是nonoverlapping(是在无穷地长的nanowire)但是当重叠成为非零时,显示4频率(作为在有限长度nanowire)。我们在Majorana费米子表示印射模型系统进一枚QD-Kitaev戒指并且由检查精力光谱肯定这些不同特征。
简介:Low-lyingstatesofaverticallycoupledthree-layerquantum-dotsystemarestudied.Eachlayercontainsoneelectron,andthetunnellingofelectronsbetweenlayersisneglected.EffectsoftheinterlayerseparationdandtheexternalmagneticfieldBareevaluatedbynumericalcalculations.Inthestrongcouplingcase(i.e.dissmall),asinasingledot,transitionsoftheangularmomentumLofthetruegroundstatesoccurwhenBincreases,whereasintheweakcouplingcasethetransitiondoesnotoccurandLremainszero.Furthermore,itisfoundthatthevariationofdmayalsoinducetheLtransition.Asaresult,aphasediagramofLofthetruegroundstateisgiveninthed-Bplane.
简介:摘要目的为临床医生监控妊娠受TORCH感染的风险,提供了有效的、可靠的检测手段。方法酶联免疫法。在微孔板上包被有抗人IGM抗体,在加入样本后,进行孵育,样本中含有的IGM抗体就会被微孔上包被的抗人IGM单克隆抗体所捕获。经洗涤将样品中所有其它成分去除后,加入抗原与辣根过氧化物酶标记的特异性抗体形成的免疫复合物。孵育后,清洗微孔以除去未结合的复合物,然后加入色原/底物。在有结合复合物存在下,无色底物被水解为可检测其光密度值、并与样品中存在的抗体数量成比例的有色终产物。结果临界值(Cut-off,co)=NC+0.250S/Co<1.0阴性S/Co1.0-1.2灰区S/Co>1.2阳性。结论用ELISA法检测TORCH特异性IgM抗体用于诊断急性/原发病毒具有重要价值。
简介:Theeffectsofthemagneticfieldonthevalencebondpropertyofthedouble-quantum-dotmoleculearenumericallystudiedbythefiniteelementmethodandperturbationapproachbecauseoftheabsenceofcylindricalsymmetryinthehorizontallycoupleddots.Thecalculationresultsshowthattheenergyvalueofthegroundstatechangesdifferentlyfromthatofthefirstexcitedstatewithincreasingmagneticfieldstrength,andtheycrossunderacertainmagneticfield.Theincreasingmagneticfieldmakesthecovalentbondstatechangeintoanionicbondstate,whichagreesqualitativelywithexperimentalresultsandandmakesionicbondstatesremain.Theoscillatorstrengthoftransitionbetweencovalentbondstatesdecreasesdistinctlywiththeincreasingmagneticfieldstrength,whenthemoleculeisirradiatedbypolarizedlight.Suchaphenomenonispossiblyusefulforactualapplications.
简介:Inthepresentpaper,weshallrigorouslyre-establishtheresultofthesingle-particlefunctionofaquantumdotsystematfinitetemperature.Unliketheproofgiveninourpreviouswork(Phys.Rev.B74195414(2006)),wetakeadifferentapproach,whichdoesnotexploittheexplicitexpressionoftheGibbsdistributionfunction.Instead,weonlyassumethatthestatisticaldistributionfunctionofthequantumdotsystemisthermodynamicallystable.Asaresult,weareabletoshowclearlythattheelectronicstructureinthequantumdotsystemiscompletelydeterminedbyitsthermodynamicstability.Furthermore,theweakerrequirementsonthestatisticaldistributionfunctionalsomakeitpossibletoapplythesamemethodtothequantumdotsystemsinnon-equilibriumstates.
简介:Weinvestigatethedynamicsoftwointeractionelectronsconfinedtoone-dimensionalquantumdotarrayinanacelectricfield.Wefindthatinitiallylocalizedelectronswillremainlocalizedintheabsenceofcoulombinteractioniftheratiooftheacfieldmagnitudetothefrequencyisarootoftheordinaryzero-orderBesselfunction.IncontrasttothecasewithoutCoulombinteraction,nomatterwhatthevalueis,theelectronsaredelocalizedandthedelocalizationeffectdependsontheratioU/ωandeaE/ω,whereUisthestrengthofCoulombinteraction,aisthelatticeconstant,andEandωaretheacfieldamplitudeandfrequency,respectively.
简介:摘要目的探讨ELISA法甲胎蛋白(AFP)的检测方法及意义。方法对原发性肝癌患者30例,对ELISA法甲胎蛋白(AFP)方法及临床意义进行分析。结果ELISA测得的AFP含量取不同浓度的混合血清,AFP浓度为10.7lng/mL、18.08ng/mL、46.83ng/mL,分别加入不同浓度定值血清,用ELISA法分别检测其回收率。用ELSIA测得的回收率分别在93.90%~98.16%,平均回收率分别为96.42%,ICA的检测精度高,稳定性强。结论AFP是原发性肝癌最灵敏、最特异的肿瘤标志,血清AFP测定结果大于500μg/L以上,或含量有不断增高者,更应高度警惕。