学科分类
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445 个结果
  • 简介:1教学设想英语新课程标准倡导任务型教学模式,即让学生在教师的指导下,通过感知、体验、实践、参与、合作等方式,实现任务目标,感受成功。因此本课多在课堂设计上下工夫,注意联系实际,模仿真实的英语口语运用环境,让学生在小组合作中学会英语、掌握英语、运用英语。本节课笔者计划采用情景教学法、多媒体辅助教学法、合作学习法、小组竞赛法等方法。通过多媒体、实物、动作以及图片等创设富有生活气息的语言情境,让学生“在玩中学,在学中玩”,真正做到寓教于乐。

  • 标签: 英语新课程标准 任务型教学模式 小组合作 情景教学法 辅助教学法 合作学习法
  • 简介:<正>AttheinvitationoftheKazankaiFoundationofJapan,NewZealandRotaryandAustralianRotary,a5-memberCAFIUdelegationheadedbyDeputySecretary-GeneralLiuKaiyangvisitedJapan,NewZealandandAustraliafromOctober28toNovember6,2013.Ihavethehonortobeamemberofthedelegationtovisittheabovementionedthreecountries,whichleftan

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  • 简介:GarySnyderisafamousAmericanpoetinthe1960s.HisworksoftenreflectZenthought,whichhighlyinfluencedtheBeatGenerationofthattime,andeventhewholewesternsociety.ThisarticleattemptstodiscusssomeofthepossibleaspectsinwhichSnyder’sZendivertsfromChineseZenthought.Tofindouttheanswer,fourofSnyder’spoetrycollectionsweremainlyconsulted,aswellasinformationabouttheenvironmentthathe’dbeenlivingin.Thediscrepancythisarticlewillshowcaseisthree-folded:first,whatSnyderpursuedmightbe"squareZen",whichisdifferentfromChineseZen;second,hispoemsintegratedsomeideasfromIndianfolklores,thuscontradictingthatofZen;third,givingconsiderationtohiswesternbackgroundandspecifichistoricalenvironment,hemightmisinterpretChineseZenthoughtunconsciouslyorintentionally.ThisisanareawhichsofarnocurrentstudiesaboutSnyderhaveprobedinto,sotheresultsarejusttentativeandexploratory.

  • 标签: dissimilarities GARY Snyder’s ZEN CHINESE ZEN
  • 简介:信息差是指存在于自然界和人类社会中的客观信息与人类对它们的了解、掌握程度之间的距离。换句话说,信息差就是人们在掌握信息方面所存在的差距。L扫于这种差距的存在,人们才有传递和交流信息的必要。通过交际,缩短和填补差距以达到信息平衡。信息差被填补后,新的信息差又会产生,因此信息差是绝对的、永恒的,可以说信息差的这种绝对性是促成礼会交际的诱因和社会发展的基础。

  • 标签: 信息差 教学实录 IT 魔力 人类社会 客观信息
  • 简介:Baosteeldevelopedadigitalautomaticanalysistechniqueformaceralspecificationin2002.Thisanalysissystemcombinesdigitalimageprocessing,graphics,databases,expertsystems,artificialintelligenceandotheradvancedtechnologies.After6yearsofapplicationincokeproduction,thesystemproveditselfsuccessfulincoalqualitytestingandcoalblendingguidanceonmaceral.However,duringthislongprocess,someinadequacieswerefoundthatimpactedtheprecisionandaccuracyoftheanalysis.So,in2008Baosteelbegantoworkonimprovingthecoalmaceralanalysissystem.Theimprovementsincludedthefollowing:furtherupgradingandenhancingtheanalysisperformanceofmicroscopicimages;extendingthegraylevelstoincreasethereflectancemeasurementaccuracy64times;changingthefocusmethodandeffectivelyeliminatingtheinterferenceofhalo.Inaddition,animprovedimagerecognitionmethodwasadoptedtomaketheextractionofvitrinitemoreaccurateandanewmodelofcoalconstituentalgorithmwasaddedwhichcanaccuratelydeterminethecompositionofmaceral(exinite,vitrinite,inertinite).Sincetheseimprovementswerecompleted,thesystemhasachievedhigherautomation,speedandaccuracy,collectedmoreinformationandperformedmoreaccuratemaceralanalysisforcokeproduction.Meanwhile,theimprovedsystemhasprovidedareliableanalyticalbasisforthefurtherstudyontherelationshipbetweencokequalityandcoalblending.

  • 标签: 自动分析技术 显微组分 宝钢 规格 数字图像处理 专家系统
  • 简介:SeismicPvelocitystructureisdeterminedfortheupper500kmoftheinnercoreandlowermost200kmoftheoutercorefromdifferentialtraveltimesandamplituderatios.ResultsconfirmtheexistenceofagloballyuniformFregionofreducedPvelocitygradientinthelowermostoutercore,consistentwithironenrichmentneartheboundaryofasolidifyinginnercore.Pvelocityoftheinnercorebetweenthelongitudes45oEand180oE(quasi-EasternHemisphere)isgreaterthanorequaltothatofanAK135-Freferencemodelwhereasthatbetween180oWand45oE(quasi-WesternHemisphere)islessthanthatofthereferencemodel.Observationofthisheterogeneitytoadepthof550kmbelowtheinnercoreandtheexistenceoftransitionsratherthansharpboundariesbetweenquasi-hemispheresfavoreithernoorveryslowinnercoresuperrotationoroscillationswithrespecttothemantle.DegreeoneseismicheterogeneitymaybebestexplainedbyactiveinnercorefreezingbeneaththeequatorialIndianOceandominatingstructureinthequasi-EasternHemisphereandinnercoremeltingbeneathequatorialPacificdominatingstructureinthequasi-WesternHemisphere.Variationsinwaveformsalsosuggesttheexistenceofsmaller-scale(1to100km)heterogeneity.

  • 标签: 地震影响 内核 P波速度结构 赤道太平洋 融化 冷冻
  • 简介:<正>AttheinvitationoftheDanish-ChineseBusinessForum(DCBF),ZhouTienong,Vice-Chairmanofthe11thNationalPeople’sCongressStandingCommitteeandPresidentofCAFIU,ledaCAFIUdelegationtovisitDenmarkfromJune9thto12th.WhenwearrivedinCopenhagenat10:30pm,lookingattheskylineofthecopperdomesand

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  • 简介:Separationtechnologyofrareearthelements(REEs),asthecriticalstepintheseparationprocess,hadlongbeenfraughtwithtechnicaldifficulty.AresearchprojectconductedbyBaotouShiboRareEarthExtraction&EquipmentCo.Ltd.,BaotouREEResearchInstitute,andBaotouSteel&REEGroupHi-TechCo.Ltd(InnerMongolia),hassuccessfullysolvedtheproblemusingacentrifugalextractorandadvancedtechniquestoachieveakeybreakthrough.ThekeydeviceofthewholeproductionlinecontainsCTL-500FBcentrifugalextractorsanddigitalflowsystemequipment.Employmentofanautomaticcontrollingsystemanditsfullyfunctionaloperationsystem,alongwithvarioussupportivefacilities,fulfilstheseparationprocessesforvariousrareearthmaterials.Comparedwithconventionalbox-typeseparationtechnology,thisnewapproachsignificantlyimprovesthestirringintensity,thusimprovingproduction

  • 标签: 离心萃取器 分离技术 稀土元素 包头稀土研究院 中国 分离过程
  • 简介:ThisworkinvestigatesthedistributionofhighwindsaboveBeaufortscale6intheoffshorezonesofChinausinghigh-resolutionsatellitemeasurements.AnumericalexperimentiscarriedoutinordertofindouttheeffectsofTaiwanIslandontheformationofstrongwinds.Theanalysisindicatesthatthedistributionofhighwindoccurrenceissimilartothatoftheaveragewindvelocityinwinter.Highwindstendtobeanchoredinspecialtopographicalregions,suchastheTaiwanStrait,theBashiChannelandthesoutheastcoastofVietnam.HighwindsoccurmuchmorefrequentlyoverthewarmerthanthecolderflankofKuroshiofrontasitmeandersfromTaiwantoJapan.Thefrequencyofhighwindsdecreasesdrasticallyinspring.TheTaiwanStraitmaintainsthelargesthighwindoccurrence.Besides,highwindsremainfrequentintheBashiChannel,thesoutheasttipofTaiwanIslandandthewarmerflankofKuroshiofront.Insummer,highwindsgenerallyoccurinfrequentlyexceptoverabroadregionoffthesoutheastcoastofVietnamnear10°Nandthefrequencytheredecreasesfromsouthwesttonortheast.HighwindsaroundTaiwanIslandpresentnearaxisymmetricdistributionwithlargerfrequencyalongsoutheast-northwestdirectionandsmallerfrequencyalongsouthwest-northeastdirection.Thedominantdirectionofhighwindsexhibitsacounterclockwisecirculationsurroundingtheisland.Thefrequencyofhighwindsincreasesrapidlyinautumnandalmostrepeatsthedistributionthatappearsinwinter.ThesimulationresultssuggestthattheeffectsofTaiwanIslandtopographyonhighwindsvarywithseasons.Inwinter,topographyisthemajorcauseofhighwindsinthesurroundingoceaniczones.HighwindsinbothTaiwanStraitandthesoutheastcorneroftheislanddisappearandthefrequencydecreasesgraduallyfromsouthtonorthwhentheterrainisremoved.However,insummer,highwindfrequencyderivedfromtwosimulationswithandwithoutterrainisalmostidentical.Weattributethisphenomenontothefactorswhicharerespon

  • 标签: OFFSHORE HIGH winds in China COASTAL
  • 简介:联华电子与数字电视解调器芯片设计公司高拓讯达(AltoBeam)近El共同宣布,高拓讯达推出了DVB—T2/T/C/S2/S解调器,以适应采用这些标准的数字电视市场需求。ATBM7812采用联华电子12寸URAM嵌入式内存技术专利,具备了更高的效能与更小的芯片尺寸。

  • 标签: 电视解调器 DVB 电子 芯片设计公司 市场需求 数字电视
  • 简介:经济增加值(EVA)作为一种价值管理的工具,是衡量银行创能力的新方法。通过对42家城市商业银行2009年-2011牟的创能力分析,从EVA的计算结果来看,大部分城商行都在创造价值,且创能力不断提升。与国内大型商业银行相比,城市商业银行有其自身的特点,如决策权相对集中和市场占有份额较低等,因此,本文选取42家城市商业银行2009-2011年间前五家股东持股比例、高管平均年薪、董事会人数和主营业务收入这四个指标作为EVA的驱动因素进行分析。回归结果显示:主营业务收入和前五大股东持股比例对创能力的影响显著,其中主营业务收入有正向影响,前五大股东持股比例则呈现负向影响;而高管薪酬和董事会人数的影响不显著。

  • 标签: EVA 城市商业银行 创值能力
  • 简介:数学思想方法是对数学的知识内容和所使用方法的本质认识,它是形成数学意识和数学能力的桥梁,是灵活运用数学知识、数学技能和数学方法解决有关问题的灵魂.作为一名数学教师,真正考虑的应是如何在整个教学过程中渗透蕴涵于数学知识之中的种种数学思想,达到逐步培养思维能力、提高数学素质,从而达到提高教学质量的近期效果和全面提高人的素质的远期效果.

  • 标签: 数学思想方法 数学素质 教学过程 绝对值 数学知识 本质认识
  • 简介:现实中当有重大信息出现时会对股票价格产生冲击,使其呈现不连续跳跃,即股票价格表现为一种跳跃-扩散模型.在股票价格服从跳跃-扩散过程模型中,引入均值-方差准则,运用倒向随机微分方程及随机最大原理对套期保值问题进行研究,并得到了该框架下的最优套期保值策略.

  • 标签: 随机最大值原理 最优控制 BSDE 跳跃-扩散过程 套期保值策略
  • 简介:Jacobi算子是Sturm-Liouville算子的离散化,通过对无穷维Jacobi算子的特征的性质进行探讨,得出了无穷维Jacobi算子的特征对其系数具有连续依赖性的结论,并给出了严格的数学证明.

  • 标签: 无穷维Jacobi算子 特征值 连续依赖性