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119 个结果
  • 简介:亲爱的《大嘴英语》小读者:6月21日是父亲节。你常和你爸爸一起玩吗?你喜欢数学吗?和爸爸一块儿来玩玩这个和老爸有关的数学游戏吧!

  • 标签: 小学 英语 课外阅读 阅读材料
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  • 简介:Chinaisatransitionalanddevelopingcountrywiththelargestpopulationandnumberoffarmersintheworld,andshowsastrikingfeatureofurban-ruraldualstructure.ThemajorcontentinChina’srisingmodernizationistheprocessofurbanizationtransformation,urbanizationofsmallandmiddle-sizedcityinChinashouldbecomethebasicpathselection.Whichinvolvesthreeimportantissues:concept,people,andinstitution.Onlybasedonthemodernizationofconcept,peopleandinstitution,therewillautomaticallygeneratethemodernizationofindustry,agriculture,technologyandnationaldefense,andthusconsistentlydevelopingprosperousofboththecountryandthecitizens.更多还原

  • 标签: 城市化发展 中国 路径 国防现代化 城乡二元结构 自动生成
  • 简介:作者从Riemannian几何学扩大统计结构的观点到赋予以一个非线性的连接和一个概括度量标准的路径空格的一般框架。统计数据的二个特别盒子被定义。相应于这些班的一个非线性的连接的存在和唯一被证明。二Koszul张肌根据Riemannian途径被介绍。作为应用程序,作者对待Finslerian(,)当支持Riemannian度量标准是一个统计模型的Fisher-Rao度量标准时,度量标准和Beil度量标准在相关性和域理论使用了。

  • 标签: 统计结构 空间结构 路径 广义度量空间 KOSZUL模 公制
  • 简介:GyamaChoepelisaTibetanmanbornintheMedrogungkarCountyofLhasa.HegrewuppredominantlyinNyingchi.ThemandrivesforalivingandhasarichunderstandingofthelocalTibetancultureanditscustoms.Whentalkingwithcustomers,especiallyphotographers.

  • 标签: Gyama Choepel MAN LHASA
  • 简介:Thisarticleseekstoaddresssomelingeringdebateswithinsustainabilitystudiesbyrevealingtheconnectionsbetweenrenewableenergyconsumptionandsustainability.Usingdatafrom30OECDcountries,thearticleexaminestheconnectionsviaregressionandgeospatialanalysis.Findingsfromthequantitativeanalysisindicatethatabout50%ofthevariationinsustainabilityisaccountedforbythedegreeofrenewablesconsumption.Thegeo-spatialanalysisvisuallyillustratestheintimateconnectionsbetweenthetwovariables.Theoretically,renewableen-ergyrelatestosustainabilityinthreedimensions.Thefirstdimensioniseconomic.Relyingontraditionalfossilfuelseventuallywillbringoureconomytoastop.Renewableenergies,however,areabletosecureourenergysupplyintoanindefinitefuture.Theseconddimensionlinkstoethics.Toleaveanintactplanettofuturegenerationsisamoralresponsibilityofourgeneration.Thecurrentenergysupplysystemisbuiltondepletionofnaturalresources,whilethesourcesofrenewableenergyarevastandconstantlyreplenished.Thelastdimensionisecologic.Howtoallocateaproperapportionmentoftheglobalbiospherebetweenhumankindandtheotherlifeontheearthisacriticalissuerelatedtosustainability.Byusingrenewableenergy,wecangreatlyreduceourimpactonbiodiversityandthereforestrikeabalancebetweenhumankindandotherlife.Overalltheresearchsuggeststhatdevelopingrenewablescanandinmanycasesdoessustainanation'seconomicgrowthwhilesimultaneouslyprotectingtheenvironment.Itisawin-winsituation.Thisfindingundoubtedlypointsoutapracticalandrealisticpathforsustainabledevelopment.

  • 标签: 政府 可持续发展 可再生能量 生态经济
  • 简介:在放大变量的内部点方法建议一条中央路径。在内部点方法的中央路径的角色;方法论;结果和讨论。

  • 标签: CENTRAL PATH INTERIOR POINT methods LINEAR
  • 简介:TheOnlinecomputingsystemfortheDZEROexperimentisusedtocontrolmonitor,andacquiredatafromtheapproximately1-millionchanneldetector,ThispaperdescribestheOnlineHostsystemeventdatapathrequirementsanddesign.

  • 标签: DZERO实验 数据收集 数据监视
  • 简介:本文所讨论的积图是图的笛卡尔积,图的张量积,图的逻辑积和图的强直积四种积图.证明了:①如果G1和G2都是连通图,则积图中笛卡尔积,逻辑积和强直积都是道路正图.②图的张量积是道路正图的是图G1和G2是一个连通图,G1[或G2]有一个奇圈,且max{λ1μ1,λnμm}≥2,其中λ1和λn[或μ1和μm]分别是图G1或G2的最大和最小特征值

  • 标签: 积图 道路正图 图的笛卡尔积 图的逻辑积 图的张量积 图的强直积
  • 简介:Thispaperpresentsnonmonotonicquasi-Newtonalgorithmsviatwopre-conditionalcurvilinearpaths,thepreconditionalmodifiedgradientpathandtheprecon-ditionaloptimalpath,forunconstrainedoptimizationproblem.WeemploythestableBunch-Parlettfactorizationmethodtoformtwocurvilinearpathsveryeasily.Thenonmonotonecriterionisusedtospeeduptheconvergenceprogressinthecontoursofobjectivefunctionwithlargecurvature.Theoreticalanalysesaregivenwhichprovethattheproposedalgorithmsaregloballyconvergentandhavealocalsuperlinearcon-vergencerateundersomereasonableconditions.Theresultsofnumericalexperimentsarereportedtoshowtheeffectivenessoftheproposedalgorithms.

  • 标签: 无约束最优化 非单调 曲线轨迹算法 最佳途径 因子分解法
  • 简介:作为在城市的陆地价格系统的一个重要角色,基本陆地价格估价在房地产市场指导并且思考各种陆地价格。用有到valuate的算法和强大的分析功能的地理信息系统(GIS),土地将改进陆地估价的合理性和便利。用最佳的路径算法的基本陆地价格上的学习的目的是减少人造错误,提高automatization,避免由障碍目标做不方便。

  • 标签: GIS 地理信息系统 土地价值评价 土地估价
  • 简介:Detectionofpathdelayfaultsrequirestwo-patterntests.BISTtechniqueprovidesalow-costtestsolution.Thispaperproposesanapproachtodesigningacost-effectivedeterministictestpatterngenerator(IPG)forpathdelaytesting.Givenasetofpre-generatedtest-patterngenerator(TPG)forpathdelaytesting.Givenasetofpre-generatedtest-pairswithpre-determinedfaultcoverage,adeterministicTPGissynthesizedtoapplythegiventest-pairsetinalimitedtesttime.Toachievethisobjective,configuablelinearfeedbackshiftregister(LFSR)structuresareused.TechniquesaredevelopedtosynthesizesuchaTPG.whichisusedtogenerateanunordereddeterministictest-pairset.TheresultingTPGisveryefficientintermsofhardwaresizeandspeedperformance.SImulationofacademicbenchmarkcircuitshasgivengoodresultswhencomparedtoalternativesolutions.

  • 标签: 超大规模集成电路 VLSI 图样发生器 路径延迟检验
  • 简介:Greenandintelligentmanufacturingwillbethedevelopmentdirectionofmanufacturingindustrybecauseoftheirfeatures:lowpollutionontheenvironment,highefficiencyandautomaticproduction.Therapiddevelopmentofinternetischangingthedirectionofthemanufacturingindustry,whichwillimpactthegreenandintelligentmanufacturing.Basedonthese,theenvironmentandconditionsofgreenandintelligentmanufacturingbroughtbyinternetissortedoutinthispaper;andthenewopportunitiesandchallengesofgreenandintelligentmanufacturingintheinterneteraareanalyzed.Then,thepathfortherealizinggreenandintelligentmanufacturingisstudied;andsomepolicyrecommendationsareputforwardtopromotetherealizationofgreenandintelligentmanufacturing.

  • 标签: INTERNET green MANUFACTURING INTELLIGENT manufactu
  • 简介:Atthebeginningoftheseconddecadeofthe21stcenturyandontheoccasionofthe90thanniversaryofthefoundingoftheCommunistPartyofChina(CPC),theChinesegovernmentissuedthewhitepaperChina'sPeacefulDevelopment,solemnlydeclaringtothewholeworldonceagainthatpeacefuldevelopmentisastrategicchoicemadebyChinatorealize

  • 标签: 中国共产党 道路 中国政府 现代化
  • 简介:MarkedbytheUNClimateChangeConferenceinCopenhagen2009,climatechangeisshapingthenewpatternforfuturegeopoliticswithunprecedenteddrive.Climatechangehassurpassedthecategoryofpureenvironmentproblemandbecomeafocalissueininternationalrelations.Drivenbyclimatechange,newchangeshavetakenplaceintheevolutionofgeopoliticalpattern.(1)Geopoliticalcontentionexpandsintonewfieldsandregions.(2)Measuresandtoolsofgeopoliticalcontentionbecomemorediversified.(3)Mainbodiesofgeopoliticalgamblingaredividedintodifferentgroups.Withthedevelopmentofpoliticization,climatechangehasbecomethesignificantdrivingforcethatcaninfluencetheevolutionofgeopoliticalpattern.Measures,sphereandcontentsofgeopoliticalcontentionchangeddramatically,carbonemissionpermits,carbontariffandnewenergytechnologyturnedintothekeypointsofgeopoliticalcontention.Climatechangeactsontheevolutionofgeopoliticalpatternthroughthreemainpaths:'Feedbackeffect','Tracebackeffect',and'Rippleeffect',andtheyexertinfluenceongeopoliticalpatternwiththreeimpacts:'Depressioneffect','Traceabilityeffect',and'Diffusioneffect'.Wedrawseveralconclusionsfromtheanalysis:(1)Climatechangegraduallybecomesoneofthemostactivedrivingforcestoimpactontheevolutionofgeopoliticalpatterninthepresentworldanditdiversifiesthegeopoliticaltargets.(2)Climatechangegeneratesnewgeopoliticaltools.Thedevelopedcountriesuseclimatechangeasa'Lever'toprystrategicresourceslikeenergyandgrainandthegeopoliticalmeansareinamoresecretiveway.(3)Low-carbontechnology,withnewenergytechnologyasthecore,becomesthekeyfactorofgeopoliticalinfluenceandpowertransition.Thosewhocantakeadvantageofnewenergytechnologieswilloccupytheleadingpositioninfuture’sclimatechangenegotiationsandgeopoliticalcompetition.

  • 标签: 地缘政治 气候变化 新能源技术 路径 哥本哈根 环境问题
  • 简介:<正>OtosclerosiswasfirstdiscoveredbyValsalvain1704[1],andthetermwasfirstusedbyAntonvonTroltschin1872todifferentiatefromtympanosclerosis[2].Normallytheoticcystinhumanremainsstationaryafterfulldevelopmentandcontainsnovisibleactivatedosteoblastsor

  • 标签: hearing DIFFERENTIATE CANAL stationary PROSTHESIS visible