简介：·AIM:Toevaluateandcomparetheefficacyandstabilityofintrastromalcornealringsegment(ICRs)implantationwithcross-linking(CXL)usingdifferentsequenceandtiming.·METHODS:Inthissingleretrospectivestudy,86keratoconiceyessubjectedtheICRsimplantation.Weanalyzedonly41eyesthathadcompletefollow-ups.Theyweredividedintothreegroups:ICRsimplantationwasappliedonly(groupnormal),ICRsfirstfollowedbyCXLimmediately(groupCXL-S),CXLfirstfollowedbyICRslongafter(groupCXL-B).Thevisualacuity,refractiveresults,keratometrywerecomparedpreoperativelyand1ypostoperatively.Theirdifferencesamongthethreegroupswerealsoanalyzed.·RESULTS:Groupnormalcomprised25eyes,groupCXL-S8eyes,andgroupCXL-B8eyes.Therewereimprovementsinthemeanuncorrecteddistancevisualacuity(UDVA)andthemeancorrecteddistancevisualacuity(CDVA)comparedpreoperativelyand1ypostoperatively[UDVA:0.31(P=0.030)logarithmicminimumangleofresolution(logMAR)groupnormal,0.4(P=0.020)groupCXL-S,0.45(P=0.001)groupCXL-B;CDVA:0.21logMAR(P=0.013)groupnormal,0.30(P=0.036)groupCXL-S;0.26(P=0.000)groupCXL-B].Therefractiveandtopographicoutcomesalsoshowedimprovements.Intermsofcomparisonsamongthethreegroups,allthePvalueswereabove0.05,showingnosignificantdifference.ButonlygroupCXL-BhadimprovementinUDVAandCDVAforallthepatients.·CONCLUSION:Withsafetyandgoodvisualoutcomes,ICRsimplantationisaviablealternativeforkeratoconus.Nosignificantdifferencewasfoundamongthesethreegroups.

简介：

简介：Weinvestigatemodulationalinstability(MI)ofacoupledtwo-componentBose–Einsteincondensatesinarotatingringtrap.TheexcitationspectrumandtheMIconditionofthesystemarepresentedanalytically.WefindthatthecouplingbetweenthetwocomponentsstronglymodifiestheMIcondition,andtheMIconditionisphase-dependent.Furthermore,wediscusstheeffectofMIonbothdensityexcitationandspinexcitation.Iftheinter-andintra-componentinteractionstrengthsareallequal,theMIcausesdensityexcitationbutnotspinexcitation,andiftheinter-andintracomponentinteractionstrengthsaredifferent,theMIcausesbothdensityexcitationandspinexcitation.Ourresultsprovideapromisingapproachforcontrollingthestabilityandexcitationofarotatingtwo-componentBose–Einsteincondensatesbymodulatingitscouplingstrengthandinteractionstrength.

简介：Nuclearmassmeasurementsprovidevaluableinformationonthenuclearbindingenergywhichreflectsthesummedresultofallinteractionsamongitsconstituentprotonsandneutrons.Thesystematicandaccurateknowledgeofnuclearmasseshavewideapplicationinmanyareasofsubatomicphysicsrangingfromnuclearstructureandastrophysicstothefundamentalinteractionsandsymmetriesdependingontheachievedmassprecision[1].

简介：PlanarringresonatorwaveguidesarefabricatedinthinfilmsofAs2S3chalcogenideglass,depositedonsilicaon-siliconsubstrates.WaveguidecoresaredirectlywrittenbyscanningthefocusedilluminationofafemtosecondTi:sapphirelaseratacentralwavelengthof810nm,throughatwo-photonphoto-darkeningprocess.Alargephotoinducedindexchangeof0.3–0.4refractiveindexunitsisobtained.Theradiusoftheringresonatoris1.9mm,correspondingtoatransmissionfreespectralrangeof9.1GHz.Ahighloaded（intrinsic）Qvalueof110,000（180,000）isachieved.Thethermaldependenceoftheresonatortransferfunctionischaracterized.Theresultsprovidethefirstreport,tothebestofourknowledge,ofdirectlywrittenhigh-Qringresonatorsinchalcogenideglassfilms,anddemonstratethepotentialofthissimpletechniquetowardsthefabricationofplanarlightguidecircuitsinthesematerials.

简介：庇护重量枚举符，完全的重量在戒指R=F上为线性代码枚举符2+uF2+vF2被定义并且从R的灰色的地图n到F23n被构造。由证明灰色在R上自我双的代码想象的事实是在F上的自我双的代码2,并且基于为Hamming的MacWilliams身份，重量在F上线性代码枚举符2,MacWilliams为李重量的身份在R上线性代码枚举符被给。进一步由介绍特殊可变t，为完全的重量的MacWilliams身份在R上线性代码枚举符被获得。最后，说明二MacWilliams身份的正确性和功能的一个例子被提供。

简介：在tetrahydrofuran(THF)的生活cationic戒指洞聚合期间的单体集中的方便即时监视与甲基triflate(MeOTf)开始了的A为平衡单体集中的运动调查和决心被开发了([M]e)经由在在联合的situFTIR光谱学与一颗钻石付小费给的稀释全部的反射(ATR)沉浸探查。聚合率从ln的线性斜坡是关于单体集中和开始者集中的第一份订单([M]<潜水艇class=“a-plus-plus”>0-[M]e)/([M]-[M]在在各种各样的溶剂的不同温度的e)对聚合时间。[M]<潜水艇class=“a-plus-plus”>当与增加聚合温度指数地增加了时，e与起始的单体集中线性地减少了。平衡强烈也取决于有单体的溶剂极性和它的相互作用。平衡聚合时间(t<潜水艇class=“a-plus-plus”>e)与增加溶剂极性减少了并且与增加线性地减少了[M]<潜水艇class=“a-plus-plus”>在有到当溶剂不在时的体积聚合的一样的点的不同斜坡的三溶剂的0。M的方程n，e=72.1/(0.14-0.04[M]e)被建立了为数字一般水准为预言提供一条简单、有效的途径以平衡状态的polyTHFs的分子的重量(Mn，在在0o犀?犀?犈?犈的THF的平衡生活cationic戒指洞聚合的e)？？

简介：

简介：