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46 个结果
  • 简介:Itisprovedthatamongtheregularpolygonswithprimeedges,onlytheregularpolygonswithFermatprimeedgesareconstructablewithcompassandstraightedge.As17isaFermatprimenumber,theconstructionofheptadecagonhasbeendiscussingallthetime.Manydifferentconstructionmethodsareproposedalthoughtheyarebasedonthesametheory.Simplificationoftheconstructionisstillasensibleproblem.Here,weproposeasimplemethodforconstructingregularheptadecagonwiththefeweststeps.Theaccumulationofconstructionerrorsisalsoavoided.Thismethodismoreapplicablethanthepreviousconstruction.

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  • 简介:ThearticlebrieflyintroducesthethreestagesthatChinaPostexperiencedandthecircumstancesofthefundamentalnetworkconstruction,focusingonintroducingthethreesortsofservicesbasedonpostalcomprehensivecomputernetwork'sapplicablesoftwaresystem:postalfinancialservice;traditionalserviceelectrified;electronicpostalservice.FinallythethinkingforfutureChinaPost'sinformationizingconstructingisputforward.

  • 标签: 中国 邮政业务 计算机网络 软件系统
  • 简介:Carbonnanotubesusedforconstructingbiosensorwasdescribedforthefirsttime.Single-wallcarbonnanotubes(SWNTs)functionalizedwithcarboxylicacidgroupswereusedtoimmobilizeglucoseoxidaseformingaglucosebiosensor.Thebiosensorresponsecanbedeterminedbyamperometricmethodatalowappliedpotential(0.40V).

  • 标签: 生物传感器 固定化酶 纳米管 葡糖氧化酶
  • 简介:Scenegraphisainfrastructureofthevirtualrealitysystemtoorganizethevirtualscenewithabstraction,itcanprovidefacilityfortherenderingengineandshouldbeintegratedeffectivelyondemandintoareal-timesystem,wherealargequantitiesofsceneobjectsandresourcescanbemanipulatedandmanagedwithhighflexibilityandreliability.Wepresentanewschemeofmultiplescenegraphstoaccommodatethefeaturesofrenderingengineanddistributedsystems.Baseduponthat,someotherfunctions,e.g.blockquery,interactiveediting,permissionmanagement,instanceresponse,″redo″and″undo″,areimplementedtosatisfyvariousrequirements.Atthesametime,ourdesignhascompatibilitytopopularC/Sarchitecturewithgoodconcurrentperformance.Aboveall,itisconvenienttobeusedforfurtherdevelopment.Theresultsofexperimentsincludingrespondingtimedemonstrateitsgoodperformance.

  • 标签: 场景图 分布式环境 构造 虚拟现实系统 基础设施 权限管理
  • 简介:Asimplerobust'strutalgorithm'ispresentedwhich,whengivenagraphembeddedin3Dspace,thickensitsedgesintosolidstruts.Variousapplications,crystallographicandsculptural,areshowninwhichsmoothhigh-genusformsaretheoutput.Atoolboxofalgorithmictechniquesallowforavarietyofnovel,visuallyengagingformsthatexpressamathematicalaesthetic.Insculpturalexamples,hyperbolictessellationsinthePoincaréplanearetransformedinseveralwaystothree-dimensionalnetworksofedgesembodiedwithinaplausiblyorganicorganization.Bytheuseofdifferenttransformationsandadjustableparametersinthealgorithms,avarietyofattractiveformsresult.Thetechniquesproducewatertightboundaryrepresentationsthatcanbebuiltwithsolidfreeformfabricationequipment.Thefinalphysicaloutputsatisfiesthe'coolnesscriterion,'thatpassersbywillpickthemupandsay'Wow,that'scool!'

  • 标签: 计算机半自动化设计 算法 实体模型 三维模型
  • 简介:与因特网的开发一起,分享的geo信息和为GIS申请增加重要性的开的GISare回答。西南的中国由几个省或区域组成,他们是四川,贵州,云南,重庆,等等。在他们之中的Theeconomic和信息合作具有意义。为基于万维网服务为西南的中国分享的资源和环境geo信息的飞行员站台,OGC(开的GISConsortium)WFS(网特征服务)被构造。经由这个飞行员平台,分享模式的一个松开的信息能被实现改进他们的合作水平。

  • 标签: GIS 地理信息系统 WEB服务 网络建设
  • 简介:在Myanmar,正式金融机构不提供uncollateralized学分。在贫穷线下面的农村unbanked与高利率正在取决于非正式的放债者。私人代理处合作一起仅仅是没有担保并且与低利率,在Myanmar提供学分给unbanked的一个microfinance机构。unbanked的一半是不能的因为信息贡献的软弱和microfinance机构的严格的法律政策,从microfinance机构借贷款。因此,这研究的目的是构造一个系统由在microfinance机构的当前的系统减少障碍改进在microfinance机构和unbanked之间的关系。法律政策作为这研究和i的创见从本地unbanked的视觉被学习--系统方法论被使用完成研究。当前的系统包括信息贡献,贷款和法律政策。当前的系统仅仅是在microfinance机构和unbanked之间的一种关系。当十个障碍发生在当前的系统时,unbanked不能来临到microfinance机构。包括四个分系统的一个存取系统被开发取决于收集了想法解决这些障碍并且打算改进在microfinance机构和unbanked之间的关系。

  • 标签: 金融机构 小额信贷 银行账户 准入制度 缅甸 接入系统
  • 简介:ESITOR'SNOTE:AninternationalsymposiumheldinBeijingwiththethemeof'RespectingandPromotingHumanRightsandConstructingaHarmoniousWorld'washeldinBeijingfromNovember22to24,2006.Thefollowingareexcerptsfromthespeechesandpapersofsomepartcipants.

  • 标签: 人权 和谐世界 重大事件 国际问题
  • 简介:FollowingHalliday’sviewthat"ifatextistobedescribedatall,thenitshouldbedescribedproperly;andthismeansbythetheoriesandmethodsdevelopedinlinguistics"(Halliday,2002),weusethetheoreticalframeworkandmethodsdevelopedinSystemic-Functionallinguisticstoexplore"thesocio-historicalandideologicalenvironment"forthe"engendering"(ibid.)oftheAnalects,theparticularcontextualfeaturesofthisgreatwork,thehierarchicalstructureofConfucius’mainteachings,andalsothewaysofrealizinghisideasinthisbookbythelexico-grammaticalchoices.WealsodiscusstheimplicationandrelevanceofConfucianismtoChinaandthepresentworld.

  • 标签: CONFUCIUS the Analects systemic-functional LINGUISTICS context
  • 简介:ThelateststepsinthesteadyevolutionoftheCERNComputerCentrehavebeentoreducethemultitudeofclustersandarchitecturesandtoconcentrateoncommodityhardware.AnactiveRISCdecommissioningprogramhasbeenundertakentoencouragemigrationtoLinux,andaprogramofmergingdedicatedexperimentclustersintolargersharedfacilitieshasbeenlaunched.Thispaperdescribestheseprogramsandtheexperiencesrunningtheresultantmulti-hundrednodesharedLinuxclusters.

  • 标签: 程序设计 RISC 商品硬件
  • 简介:Asanemergingpower,Chinahastoputforwardanewconceptofpowerandproposeanewwayofapplyingpowerinordertogobeyondtheconventionalwayfollowedbyotherbigpowersintheirone-sidedpursuitandabuseofhardpowerinmoderntimesandtoshapeChina’sinternationalimageasanemergingpowerandformulateitsnewdiplomaticstyle.Theconceptofpeace-orientedpoweristhesummarizationofChina’sdiplomaticpracticesinthepast30yearswith"peace,developmentandcooperation"asthepurposes.

  • 标签: 电源 现代物理学 国外 人类社会 国际政治 自然界
  • 简介:基于同质的平衡方法和试用函数方法,由指数的函数组成的几个试用函数方法被建议并且适用于非线性的分离系统。在符号的计算系统的帮助下,分离非线性的mKdV格子方程的新准确独居的波浪答案,分离非线性(2+1)维的Toda格子方程,Ablowitz-Ladik-lattice系统被构造。方法具有意义寻求准确独居的波浪解决方案到另外的非线性的分离系统。

  • 标签: 函数论 离散式 实变函数 描述理论