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  • 简介:摘要本次研究过程主要对10kV变电站线缆施工的准备事项及主要内容进行研究,在上述基础上结合具体工程项目,对10kV变电站电缆敷设过程的重点和难点进行把握,实施相应的优化和调整,望在一定程度上改善变电站线缆施工质量,为10kV变电站建设提供相应的参考。

  • 标签: 10kV变电站 线缆敷设 内容 应用
  • 简介:摘要电力设备因分布广泛,又常常在户外,导致在供电输电过程很容易受外界环境干扰造成设备故障。变电检修主要用于对电力设备进行适时检查,消除用电系统前场安全隐患,从而保证电力输送的正常,因此,变电检修在整个用电系统十分重要。本文将围绕变电检修的状态检修技术的现状进行分析,为完善变电检修的状态检修技术的有效措施进行阐述,制定科学的管理流程,旨在推动我国电力系统的顺利运行。

  • 标签: 变电检修技术 现状 注意事项
  • 简介:Theobjectofthispaperistoshowregularityof(0,1,...,r-2,r)interpolationonthesetobtainedbyprojectingverticallythezerosof(1-x2)pn(x)(λ≥1/2)ontotheunitcircle,wherePn(x)standsforthenthultrasphericalpolynomial.

  • 标签: 反声 理气
  • 简介:Inthispaperwestudytheaverageσ-Kwidthandtheaverageσ-linearwidthoftheunitballofl1x(R)inl2α(R).Theexactvaluesofthesewidthsarecalculatedandanoptimalsubspacewiththeoptimallinearopera-tor(fortheσ-linearwidth)areidentified.

  • 标签: exact inequality opera subspace AVERAGE R)IN
  • 简介:AconstructiveproofisgivenfortheinversionformulaforzonalfunctionsonSL(2,R).AconcretelyconstructedsequenceofzonalfunctionsareprovedtosatisfytheinversionformulaobtaAnedbyHarish-Chandraforcompactsupportedinfinitelydifferentiablezonalfunctfons.Makinguseofthepropertyofthissequencesomehowsimilartothatofapproximationkernels,theauthorndeducethattheinversionformulaistrueforcontinuouszonalfunctiotmon8L(2,R)somecondition.Theclassicalresultcanbeviewedasacorollaryoftheresultshere.

  • 标签: 线性函数 倒置公式 近似值 数学分析 证明方法
  • 简介:.Thesingle2dilationorthogonalwaveletmultipliersinonedimensionalcaseandsingleA-dilation(whereAisanyexpansivematrixwithintegerentriesand|detA|=2)waveletmultipliersinhighdimensionalcasewerecompletelycharacterizedbytheWutamConsortium(1998)andZ.Y.Li,etal.(2010).Butthereexistnomoreresultsonorthogonalmultivariatewaveletmatrixmultiplierscorrespondingintegerexpansivedilationmatrixwiththeabsolutevalueofdeterminantnot2inL2R2).Inthispaper,wechoose2I2=(2002)asthedilationmatrixandconsiderthe2I2-dilationorthogonalmultivariatewaveletY={y1,y2,y3},(whichiscalledadyadicbivariatewavelet)multipliers.Wecallthe3×3matrix-valuedfunctionA(s)=[fi,j(s)]3×3,wherefi,jaremeasurablefunctions,adyadicbivariatematrixFourierwaveletmultiplieriftheinverseFouriertransformofA(s)(cy1(s),cy2(s),cy3(s))?=(bg1(s),bg2(s),bg3(s))?isadyadicbivariatewaveletwhenever(y1,y2,y3)isanydyadicbivariatewavelet.Wegivesomeconditionsfordyadicmatrixbivariatewaveletmultipliers.TheresultsextendedthatofZ.Y.LiandX.L.Shi(2011).Asanapplication,weconstructsomeusefuldyadicbivariatewaveletsbyusingdyadicFouriermatrixwaveletmultipliersandusethemtoimagedenoising.

  • 标签: Multi-wavelets FOURIER multipliers image denoising.
  • 简介:摘要随着中国经济的快速发展,人们对电力的需求不断增长。为了确保良好的经济发展,社会有效的生产和提高人民的生活质量,需要安全,稳定,可靠和高效的能源设施。10kV变压器的配电在供电系统起着重要作用,因此,10kV变电站的电气设备和施工技术尤为重要,是人们生活和工业用电的重要保障。

  • 标签: 10kV变配电 电气设备 安装施工
  • 简介:ThecommutatorsofsingularintegraloperatorswithhomogeneouskernelΩ(x)/|x|^narestudied,whereΩishomogeneousofdegreezero,andhasmeanvaluezeroontheunitsphere.ItisprovedthatΩ∈L(logL)^(k+1)(S^(n-1))isasufficientconditionsuchthatthek-thordercommutatorisboundedonL^2(R^n).

  • 标签: 转接器 单一积分算子 有界平均振动 傅里叶变换
  • 简介:G的广义Randic指标定义为Rα=Rα(G)=∑uv∈E(G)(d(u)d(v))^α,其中d(u)是G的顶点u的度,α是任意实数.本文确定了单圈共轭的广义Randic指标R-1的严格下界,并刻划了达到最小R-1的极,这类极还是化学

  • 标签: 广义Randi指标 单圈图 完美匹配
  • 简介:WesummarisetheHEPVis'01workshopheldinMay2001atNortheasternUniversity,Boston.Generalissuessuchasarchitectureanddesignoftheframeworksandtoolkitsaredescribedaswellasthestatusofawiderangeofgenericanalysisandvisualisationtoolsandexperiment-specificsystems.

  • 标签: 高能物理实验 数据分析 交互图形
  • 简介:为有效辐射同轴高功率微波产生器的微波能量,利用径向线结构设计了一种将同轴输出结构的微波模式TM◎01转化为圆波导的微波模式TM○01的模式转换器,它能以较短的轴向长度实现较高的模式转换效率,满足紧凑化应用需求,且易于加工。数值模拟结果表明:该模式转换器在14.77GHz处的转换效率大于99%,在超过300MHz的频率带宽内的转换效率大于98%。

  • 标签: 同轴 高功率微波 模式转换 效率
  • 简介:Letuk(2,r)bealittleq-Schuralgebraoverk,wherekisafieldcontaininganl-thprimitiverootεof1withl≥4even,theauthorconstructsacertainmonomialbaseforlittleq-Schuralgebrauk(2,r).

  • 标签: Schur代数 英国 单项
  • 简介:TheauthorsdiscussproblemsofapproximationtofunctionsinL^2(R^n)andoperatorsfromL^2(R^n1)toL^2(R^n2)byRadial-BasisFunctions.TheresultsobtainedsolvetheparblemofcapabilityofRBFneuralnetworks,abasicprobleminneuralnetworks.

  • 标签: 径向基函数 中性网络 逼近函数 算子
  • 简介:Theneutron-richisotopeswithN40below68Ni,inmanywaysbehavesimilartothe“islandofinversion”nucleiwithN20.Wereportonthemeasurementsofexcitedstatesof63;65;67Mnviain-beam-rayspectroscopy.TheexperimentwasperformedattheRadioactiveIsotopeBeamFactory,RIKEN.Analysisofdatafor63;65;67MnobtainedintheSEASTARcampaignhasbeendone.Afewtransitionshavebeenidentifiedineachofthemprovidingachancetostudythesystematicstructureevolutionofn-richMnisotopesnearN40.

  • 标签: BEAM r-ray SPECTROSCOPY