简介：SufficientconditionsweregiventoassertthatbetweenanytwoBanachspacesoverK,Fredholmmappingsshareatleastonevalueinaspecificopenball.Theproofoftheresultisconstructiveandbaseduponcontinuationmethods.

简介：LetMbeacompactminimalhypersurfaceofsphereSn+1(1).Let(M)beH(r)-torusofsphereSn+1(1).AssumetheyhavethesameconstantmeancurvatureH,theresultin[1]isthatifSpec0(M,g)=Spec0((M),g),thenfor3≤n≤6,r2≤n-1/norn≥6,r2≥n-1,thenMisisometricto(M).Weimprovedtheresultandprovethat:ifSpec0(M,g)=Spec0((M),g),thenMisisometricto(M).Generally,ifSpecp(M,g)=Specp((M),g),herepisfixedandsatisfiesthatn(n-1)≠6p(n-p),thenMisisometricto(M).

简介：加权的Sobolev狮子类型空格Wlp，(；E0，E)=Wlp，(；E)Lp，(；E0)，被学习E0，E是二个Banach空格，E0连续地并且浓密地在E上被嵌入。在Wlp的区域Rn的能力的一个新概念，(；E0，E)被介绍。几个条件以区域的能力和E0和E的插值被发现以便保证嵌入操作员的连续性和紧密。特别地，在E0之间的插值空格E的最常规的类和E，看情况并且l，被发现以便混合微分操作符D从Wlp被围住并且压缩，(；E0，E)到电子valuedLp，空格。在应用，为有参数的微分操作员的方程的最大的整齐被学习。

简介：Anewmethodwasproposedforconstructingtotalvariationdiminishing(TVD)upwindschemesinconservationforms.Twolimiterswereusedtopreventnon-physicaloscillationsacrossdiscontinuity.BothlimiterscanensurethenonlinearcompactschemesTVDproperty.TwocompactTVD(CTVD)schemesweretested,oneisthird-orderaccuracy,andtheotherisfifth-order.Theperformanceofthenumericalalgorithmswasassessedbyone-dimensionalcomplexwavesandRiemannproblems,aswellasatwo-dimensionalshock-vortexinteractionandashock-boundaryflowinteraction.Numericalresultsshowtheirhigh-orderaccuracyandhighresolution,andlowoscillationsacrossdiscontinuities.更多还原

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简介：Basedontotalreflectionprinciple,acompactliquid-refractiveindexmeasuringequipmentwasdesignedandfabricated,inwhichadiodelaserwasusedaslightsourceandacharge-coupleddevice(CCD)asphotodetector.Theinfluenceonmeasurementaccuracyofthewavelengthshiftandintensityfluctuationofthediodelaserweresurmountedbyaneffectivefeedbackmethod.Itiscrucialwhetherthediodelasercouldbeusedinsuchasystem.

简介：Inthispaper,thespin-coatedthinfilmsofphthalocyaninedyearepresented.Absorptionspectrumofthethinfilmshowsacomparativelybroadabsorptioninthewavelengthrange630-770nm.Opticalparametersofthethinfilmweremeasuredbyaspectroscopicellipsometersystem.5-inCD-RdiscsmadeofthisdyeexhibitgoodperformancewithYamaha20-speedrecorder.Jittersoflandandpitarelessthan30ns,andthe3T-11T'ssignalsshowverygoodquality.ThisdyeisapromisingrecordingmediumforCD-Rwithmuchhigherrecordingspeed.

简介：最近，Popa和Rasa[27，28]出现了(在里面)一些古典操作员的稳定性定义在上[0，1]并且当积极线性操作员在Hyers-Ulam的意义是稳定的时，发现最好的常数。在这份报纸，我们显示出Hyers-Ulam(在里面)紧缩的磁盘上的复杂Bernstein-Schurer操作符，复杂Kantrovich-Schurer操作符和Lorentz操作符的稳定性。当操作员在Hyers和Ulam的意义是稳定的时，在情况中，我们为各自的操作员发现Hyers-Ulam稳定性常数的infimum。

简介：ＴＨＥＧＥＮＥＲＡＬＩＺＥＤＥＩＮＳＴＥＩＮＲＥＬＡＴＩＯＮＯＮＡＣＯＭＰＡＣＴ　ＯＲＩＥＮＴＡＢＬＥＲＩＭＡＮＮＩＡＮＭＡＮＩＦＯＬＤＦａｎｇＨａｉｔｏ（方海涛）；ＧｏｎｇＧｕａｎｇｌｕ（龚光鲁）（ＤｅｐａｒｔｍｅｎｔｏｆＡｐｐｌｉｅｄＭａｔｈｅｍ...

简介：Acompactmultipasscellwithlowfringesandhighthermalstabilityisdescribed.Thiscellisformedbytwotwistedcylindricalmirrors.Theopticalparametersaredeterminedbasedontheselectioncriteria,whichincludemirrorfillingefficiency,interferencefringes,andpatternstability.Withapatternof174passes,thiscellgivesa22-mpathlengthinavolumeof0.55L.Theresultsofanabsorptionmeasurementofoxygenat13091.7cm1showthatthefringenoiseislowerthan6.54×104.Themaximumallowedtemperaturechangetokeepthebeamfromexitingis33K,whichindicateshighstabilityagainstthermaldrift.

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简介：紧缩的兆兆赫(THz)波浪描准仪被建议，它与photonic晶体(PC)从2.4THz在频率下面工作到2.7THz平板基于自我描准效果。飞机波浪扩大(PWE)方法被用来计算分散表面和相等频率的轮廓(EFC)并且优化结构。在结构的THz波浪的繁殖被模仿，规范的传播由使用有吸收边界的完美地匹配的层(PML)的方法调节的有限差别的时间域(FDTD)是计算的。数字模拟证明设计描准仪有一个好描准性质和高发射度。

简介：ThispaperintroducesaunifiedoperatortheoryapproachtotheabstractFourieranalysisoverhomogeneousspacesofcompactgroups.LetGbeacompactgroupandHbeaclosedsubgroupofG.LetG/HbetheleftcosetspaceofHinGandμbethenormalizedG-invariantmeasureonG/HassociatedtotheWeil'sformula.Then,wepresentageneralizedabstractframeworkofFourieranalysisfortheHilbertfunctionspaceL~2(G/H,μ).

简介：二种紧缩的电磁的乐队差距(EBG)结构被设计。与生气螺线形状线电感器和interdigital电容器设置的二层协议EBG结构首先被介绍。因为它的显著地扩大的相等的引导者和电容，格子的时期是约4.5%空间波长。由insetting，几在扎根的飞机缩小裂缝，主要bandgap的带宽被将近19%提高。进一步的努力为设计三层协议EBG结构被作了。模拟结果证明它的时期被大约26%与的相比减少建议主要bandgap的二层EBG结构，和带宽作为的是大约3次建议了二层EBG结构。包括二层的详细图案压缩3(有或没有缺点地面飞机和EBG数组被给的三层和模拟的7EBG数组结果被介绍。

简介：ThefirstAsia-PacificComparisonofAbsoluteGravimeters(APMP.M.G-K1)wasorganizedbytheNationalInstituteofMetrology(NIM)ofChinafromDecember21,2015toMarch25,2016inChangping,Beijing.Ourcompactcoldatomgravimeter(CCAG)wastransportedfromHangzhoutoBeijingwithalongdistanceofabout1200kmtoparticipateinthiscomparison.TheCCAGistheonlyone,tothebestofourknowledge,thatisbasedontheprincipleofatominterferometryamongalltheinstruments.Absolutegravityintheindicatedthreetestsiteshasbeenmeasuredasrequestedbytheorganizer.ThesensitivityofourCCAGisestimatedtobe90μGal∕Hzp,evenwhenthemeasurementsarecarriedoutwithoutanyvibrationisolation.Besides,theaccuracyofthisgravimeterhasbeenevaluatedtobeabout19μGalbyconsideringthesignificantsystemerrors.Ourresultsshowagoodagreementwiththegivenreferencevalue.

简介：Theimpactofmutualcouplingontheperformanceofmultiple-inputmultiple-output(MIMO)systemswithcompactantennaarraysisanalyzed.ThisarticleaimstousetheS-parametermodelingapproachtoexaminetheimpactofmutualcouplingonthreesystem-relatedperformancemeasures:antennacorrelation,efficiencyandbandwidth.Itisshownthatimplementingagoodmatchingnetworkcandrasticallyimprovethesystemperformanceinthepresenceofstrongmutualcoupling.Experimentresultsindicatethesuperiorityofcross-shapedantennatodipoleantenna.

简介：这份报纸介绍概括Riesz操作符的概念和概括Riesz操作符的西方分解的定义的一个一般操作符的概括韦斯特分解的概念，并且证明下列三个语句在一个一般Banach空格是相等的：(a)每个概括Riesz操作员有概括韦斯特分解；每个操作员使Stampfli强壮的(b)定理真；(c)每个操作员有Apostol鈥檚协议修正。关键词Banach空间-概括Riesz操作员-概括韦斯特分解-紧缩的修正先生(2000)题目分类47A10-47A11-47A53由中国(10471025)的国家自然科学基础支持了，福建省(Z0511019)和福建省(JA04170)的教育系的基础的国家科学基金

简介：Inthispaper,thenotionoftheboundedcompactapproximationproperty(BCAP)ofapair[Banachspaceanditssubspace]isusedtoprovethatifXisaclosedsubspaceofL∞withtheBCAP,thenL∞/XhastheBCAP.WealsoshowthatX*hastheλ-BCAPwithconjugateoperatorsifandonlyifthepair(X,Y)hastheλ-BCAPforeachfinitecodimensionalsubspaceY∈X.LetMbeaclosedsubspaceofXsuchthatM⊥iscomplementedinX*.IfXhasthe(bounded)approximationpropertyoforderp,thenMhasthe(bounded)approximationpropertyoforderp.

简介：Thispaperpresentsacompacttriple-bandbandpassfilterbasedonmetamaterials.Theminiaturizationisrealizedbytheprincipleofphasecompensationofmetamaterial.Comparedwiththeconventionalhalf-wavelengthfilter,themetamaterialfilterhasasmallsizeof10mm×10mm.Thetriple-bandbandpassfilterperformancehasbeenvalidatedbytheelectromagneticsimulationsoftwareofhighfrequencystructuresimulator(HFSS).Theresultsillustratethatthefilterisdesignedwithcenterfrequenciesof2.4GHz,5.1GHzand8.8GHz,bandwidthsofabout7.9%(2.31—2.50GHz),7.8%(5.0—5.4GHz)and7.4%(8.50—9.15GHz),respectively,anditshowsgoodbandpasscharacteristics.

简介：这份报纸给有限维的无法缩减的操作员的概念((FDI)操作员)并且无限的维的无法缩减的操作员((IDI)操作员)。讨论关系(FDI)操作员，(IDI)操作员和强烈无法缩减的操作员((SI)操作员)并且说明操作员的三个班的一些性质。为有上面的三角形的操作员矩阵的形式的操作员的有限维的irreducibility的一些足够的条件被给。这份报纸证明有一个单条系列的每个操作符是小紧缩的不安一(FDI)在每围住的线性操作符T能被操作符接近在的可分离的Banach空格和表演(FDI)的操作员关于强壮操作员的拓扑学和每个紧缩的操作符K罐头的(X)由操作符接近了在(FDI)关于有一个Schauder基础的Banach空格X上的标准拓扑学的(X)，在此(FDI)(X):={TB(X)：T=i=1kTi,Ti(FDI)，k}。