简介:文章在Markov跳变系统描述的固定资产投入产出模型基础上,考虑外界的不确定性,引入随机变量,建立了基于离散时间随机Markov跳变系统的固定资产投入产出动态变化模型.接着,把固定资产投入看作博弈的一方,外界随机干扰看作博弈的另一方,在两者之间设计一个随机零和博弈,进而运用鞍点均衡理论设计出求解固定资产投入产出问题的最优策略,并给出最优解的显式形式.
简介:对新颁布的2011《中华人民共和国船员教育和培训质量管理规则》主要修订内容进行介绍,就其对航海院校和船员培训机构的影响进行分析,并提出适应新质量标准的质量管理体系改进对策。
简介:OnMarch26,2010anunderwaterexplosion(UWE)ledtothesinkingoftheROKSCheonan.TheofficialMultinationalCivilian-MilitaryJointInvestigationGroup(MCMJIG)reportconcludedthatthecauseoftheunderwaterexplosionwasa250kgnetexplosiveweight(NEW)detonationatadepthof69mfromaDPRK'CHT-02D'torpedo.KimandGitterman(2012a)determinedtheNEWandseismicmagnitudeas136kgatadepthofapproximately8mand2.04,respectivelyusingbasichydrodynamicsbasedontheoreticalandexperimentalmethodsaswellasspectralanalysisandseismicmethods.ThepurposeofthisstudywastoclarifythecauseoftheUWEviamoredetailedmethodsusingbubbledynamicsandsimulationofpropellersaswellasforensicseismology.Regardingtheobservedbubblepulseperiodof0.990s,0.976sand1.030swerefoundincaseofa136NEWatadetonationdepthof8musingtheboundaryelementmethod(BEM)and3Dbubbleshapesimulationsderivedfora136kgNEWdetonationatadepthof8mapproximately5mportsidefromthehullcenterline.Hereweshowthroughanalyticalequations,modelsand3Dbubbleshapesimulationsthatthemostprobablecauseofthisunderwaterexplosionwasa136kgNEWdetonationatadepthof8mattributabletoaROKlittoral'landcontrol'mine(LCM).
简介:阐述了"航海气象与海洋学"多媒体教学课件的开发目的、设计结构、主要特点及开发过程.