简介：文章从高职数学的教学目标及学生的学情出发，对基于“概念意象”形成的高职数学概念教学的可行性及实施效果进行了论述，并以定积分概念教学为例来说明采用工作过程导向的案例教学在学生掌握正确的概念意象，并顺利实现知识迁移中的作用。

简介：当代隐喻理论认为，隐喻不仅是一种语言修辞现象，而且是一种认知活动，对诗歌的鉴赏也有很深的影响。文章尝试从概念隐喻这一认知视角对张九龄的五言古诗进行分析，对古诗研究具有一定借鉴意义。

简介：罗尔斯罗伊斯公司日前推出一艘1000TEU支线集装箱船概念船。发动机、燃料舱、电池板甚至和住宿区都将以集装箱模块方式被部署在＂ElectricBlue＂概念船上。据罗尔斯罗伊斯公司介绍,＂ElectricBlue＂概念船能够很好地应对航运业的两大挑战。模块化的船用机械、使用高速机而不是中低速机、无需压载水处理（因为应用了一种革新的船体形式）、固定的住宿区,这些都意味着这种概念船能以更低的成本设计和建造。

简介：Theprogressofeconomicglobalization,therapidgrowthofinternationaltrade,andthemaritimetransportationhasplayedanincreasinglysignificantroleintheinternationalsupplychain.Asaresult,worldwideseaportshavesufferedfromacentralproblem,whichappearsintheformofmassiveamountsoffuelconsumedandexhaustgasfumesemittedfromtheshipswhileberthed.Manyportshavetakenthenecessaryprecautionstoovercomethisproblem,whileothersstillsufferduetothepresenceoftechnicalandfinancialconstraints.Inthispaper,thebarriers,interconnectionstandards,rules,regulations,powersources,andeconomicandenvironmentalanalysisrelatedtoships,shore-sidepowerwerestudiedineffortstofindasolutiontoovercomehisproblem.Asacasestudy,thispaperinvestigatesthepracticability,costsandbenefitsofswitchingfromonboardshipauxiliaryenginestoshore-sidepowerconnectionforhigh-speedcraftscalledAlkaherawhileberthedattheportofSafaga,Egypt.Theresultsprovidethenationalelectricitygridconceptasthebesteconomicalselectionwith49.03percentofannualcostsaving.Moreover,environmentally,itcouldachieveanannualreductioninexhaustgasemissionsofCO2,CO,NOx,P.M,andSO2by276,2.32,18.87,0.825and3.84tons,respectively.