简介:摘要:本文详细介绍了所采用的通信软件技术,如软件结构、通信协议,从不同角度详细介绍OMG的模块功能、关键功能,从两个层面阐述OMG的体系结构,包括HCMT网关通信架构,以及HCMT网关内部接口,和基于HCMT的通讯技术网关技术分析。
简介:一、问题的提出我系应用电子专业学制三年,近几年来学生毕业后绝大部分分配到县、区乡镇企业工作,这些单位往往技术人员少,既生产又经营,一人顶多人用,同时还经常和外商打交道,这些单位迫切要求我们的毕业生要一专多能,适应改革开放形势的需要,具有较强的独立工作能力,既要有解决生产中具体技术问题的能力,又要有行政管理、技术管理的能力,同时还要有外语会话能力、计算机操作能力.总之,他们需要的是应用型、职业型、综合型的人才.为了适应社会的这种新情况、新要求,我们对传统的“2.5+0.5”的教学模式进行了适当的改革,提出了“2+0.5+0.5”的新教学模式,并制定了相应的教学计划.
简介:睁开双眼,我看到的是摇曳在空中那被风吹动的树叶。细细的呼啸声与耳膜产生共鸣,使我不禁感到一丝凉意。天气阴沉,应该是快要下雨了吧。我甩了甩脑袋,试图使自己的头脑清醒一下。长时间躺在这公园的长椅上使我感到腰酸背疼,是该起身活动活动筋骨了啊。
简介:InthispaperitturnsoutthataBanachlatticeXisorderisomorphictol~1(Γ)forsomenonemptysetΓiffitisaSchurspaceandalltheinfinitelydimensional,separableandclosedidealsofXareorderisomorphic.
简介:Letf(x)∈C[-1,1],pn*(x)bethebestapproximationpolynomialofdegreentof(x).G.Iorentzconjecturedthatifforalln,p2n*(x)=p2n+1*(x),thenfiseven;andifp2n+1*(x)=p2n+2*(x),po*(z)=0,thenfisodd.Inthispaper,itisprovedthat,undertheL1-norm,theLorentzconjectureisvalidconditionally,i.e.if(i)(1-x2)f(x)canbeextendedtoanabsolutelyconvergentTehebyshevsories;(ii)foreveryn,f(x)-p2n+1*(x)hasexactly2n+2zeros(or,inthearcondsituation,f(x)-p2n+2*(x)hasexaetly2n+3zeros),thenLorentzconjectureisvalid.
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简介:identification and classification of learning strategy. The problems are reviewed concerning the definition and classification of learning strategies and then the paper tentatively introduces Cohen’s approach to defining learning strategies in terms of prototypicality of features of learning strategies.,Cohen’s attempt to describe the prototypicality of strategies is a step forward concerning defining learning strategies. It might reflect the nature of learning strategies to a large extent because the answers to the questionnaire come from strategy experts. It is true that some problems still exist. For example,all-or-nothing feature but in terms of how far along a continuum a feature could possibly go before it stopped being descriptive of a strategy. This is an approach of defining learning strategies in terms of how prototypical the feature was. These features as follows are arranged in a descending order of agreement
简介:Radialfunctionshavebecomeausefultoolinnumericalmathematics.Onthespheretheyhavetobeidentifiedwiththezonalfunctions.Weinvestigatezonalpolynomialswithmassconcentrationatthepole,inthesenseoftheirL1-normisattainingtheminimumvalue.Suchpolynomialssatisfyacomplicatedsystemofnonlineare-quations(algebraicifthespacedimensionisodd,only)andalsoasingulardifferentialequationofthirdorder.Theexactorderofdecayoftheminimumvaluewithrespecttothepolynomialdegreeisdetermined.Byourresultswecanprovethatsomenodalsystemsonthesphere,whicharedefinedbyaminimum-property,areprovidingfundamentalmatriceswhicharediagonal-dominantorboundedwithrespecttothe∞-norm,atleast,asthepolynomialdegreetendstoinfinity.
简介:摘要校企合作、工学结合是职业教育发展的必由之路,本文在工学结合的基础上,提出了“2+0.5+0.5”人才培养模式,并以电子技术应用专业为例,对模式的内涵进行了阐释,对实践中取得的成效和发现的问题进行了总结和反思。
简介:Thefullpotentiallinearizedaugmentedplanewave(FLAPW)methodisusedtostudythecrystalstructureandelectronicstructurepropertiesofPbFeo.5Nbo.5O3(PFN).Theoptimizedcrystalstructure,densityofstates,bandstructureandelectrondensitydistributionhavebeenobtainedtounderstandtheferroelectricbehaviourofPFN.TheanalysisresultofthedensityofstatesshowsthereisanobviouschangeofNbdstatesintheparaelectric-to-ferroelectricphasetransition.ThepolarizationresultshowsthatthecontributiontoferroelectricityofNbatomsislargerthanthatofFeatoms.InferroelectricphasethereisahybridizationofFed-OpandNbd-OpinferroelectricPFN.Thisisconsistentwiththeresultoftheelectronicbandstructure.Thishybridizationisresponsibleforthetendencytoitsferroelectricity.