Consistency analysis of accelerated degradation mechanism based on gray theory

A fundamental premise of an accelerated testing is that the failure mechanism under elevated and normal stress levels should remain the same. Thus, verification of the consistency of failure mechanisms is essential during an accelerated testing. A new consistency analysis method based on the gray theory is pro- posed for complex products. First of all, existing consistency ana- lysis methods are reviewed with a focus on the comparison of the differences among them. Then, the proposed consistency ana- lysis method is introduced. Two effective gray prediction models, gray dynamic model and new information and equal dimensional （NIED） model, are adapted in the proposed method. The process to determine the dimension of NIED model is also discussed, and a decision rule is expanded. Based on that, the procedure of ap- plying the new consistent analysis method is developed. Finally, a case study of the consistency analysis of a reliability enhancement testing is conducted to demonstrate and validate the proposed method.     

切实做好高校学生入党积极分子的教育培养工作

只有紧跟时代步伐，牢牢把握青年大学生的思想脉搏，不断创新我们教育培养工作的方法、措施，有的放矢，力求实效，才能促进大学生入党积极分子的健康成长，为高校学生党员发展工作提供源头活水。     

Consistent Algorithm for Multi-value Constraint with Continuous Variables

Mature algorithms for the Constraint Satisfaction Problem (CSP) of binary constraint with discrete variables have already been obtained for the application. For the instance of multi-value constraint with continuous variables, the approach will be quite different and the difficulty of settling will aggrandize a lot. This paper presents the algorithm for realizing global consistency of continuous variable. And this algorithm can be applied to multi-value constraint.     

基于结点加密的边线捕捉处理方法*

针对空间数据融合中消除输入图形与参考图形不一致的需要，提出了一种基于结点加密的边线捕捉处理方法。该方法由结点加密、结点捕捉和结点顺序调整三个步骤组成。通过结点加密，实现了对边线更细致有效地分段捕捉处理。附加的结点顺序调整步骤则消除了结点捕捉引起的自相交问题。结果表明，本文方法处理结果中的输入边与容限距离内的参考边完全重合，并且不存在自相交问题，优于ArcGIS捕捉处理结果。实验结果证明了本文方法引入附加结点和调整结点顺序的有效性。     

线性综合评价模型参数的专家评定方法

基于层次分析法(AHP),对一类线性综合评价模型参数的确定给出了三种有效的专家评定方法:专家评定法,综合专家评定法,修正专家评定法。     

ASYMPTOTIC PROPERTIES OF MLE IN EXPONENTIAL FAMILY NONLINEAR MODELS

1.IntroductionSupposethattherandomvariablesyi5y2,'',y.areindependentandeachyihasdensity:withrespecttoaa-finitemeasurev,whereb,c,]areknownl'unctions;fiisaknownq-vectordefinedinX,Pistheunknownp-vectorparameterdefinedinB,oiisthenaturalparameter,andaisascaleparameter.Then(1)iscalledtheexponentialfamilynonlinear..dels[2]whicharenaturalextensionofgeneralizedlinearmodelsandnormalnonlinearmodels.Inthispaper,wegeneralizetheasymptoticresultof[1]and[3,4]toexponentialfamilynonlinearmodels.Section2gives…     

自主式水下潜器虚拟仿真系统研究

基于软件平台MultiGenCreatorPro和Vega开发出自主式水下潜器(简称AUV)虚拟仿真系统。论述了仿真系统体系结构、信息流、AUV运动模型与空间一致性方法;介绍了数据交换方式、主要的仿真功能、实时视景生成与显示技术;给出了AUV基于路径规划的三维仿真结果。结果表明,该仿真系统结构合理可靠,采用的运动模型和仿真算法满足了系统仿真的实时性要求,可逼真地演示AUV的自主运动过程。该仿真系统作为演示并验证AUV自主能力与动态控制方法正确性、有效性和实用性的先进手段和科学方法,已得到实际应用。     

层次分析法(AHP)中的检验

分析了AHP(层次分析法)中现有检验指标存在的问题和应用的局限,设计了一个通用的检验指标,采用该指标,用统计学的知识进行一致性和相容性检验.该方法比通常方法使用面广、简单、精确.通过一个指标解决了AHP中的所有检验指标问题.     

中国企业的组织文化同IS文化之间的一致性分析

IS中隐含着独特的文化特征,与组织文化相冲突的IS会引起组织成员的抵制,这在一定程度上会引起实施的失败或者导致组织没有达到预期的变化,因此,这种文化与IS实现之间的连接关系是IS实施过程中需要控制的一个重要因素.中国企业在将IS引入时,不得不考虑IS成长和应用所依托的文化背景.分析中国企业文化同IS自身携带的文化之间的差异,努力在这二者之间进行融合,才能建立IS成功运用的土壤.     

层次分析法中几种标度的比较

提出了用保序性、一致性、标度均匀性、标度可记忆性、标度可感知性、标度权重拟合性等标准,综合评价层次分析法中的不同标度;并用上述标准对现有的几种标度进行了比较,结论是:对单一准则下的排序,各种标度法都具有保序性,因而建议使用1～9标度;对精度要求较高的多准则下的排序问题,建议使用指数标度e0/5～e8/5或e0/4～e8/4.