基于层次分析法与模糊评价的学科水平评估

在学科建设中,学科水平评估可以采用专家咨询的方法,分别从学术队伍、科学研究、教学与人才培养和工作条件四个方面设计学科水平评估指标体系,运用层次分析法确定指标权重系数,针对评估指标的模糊性,建立学科水平评估模糊综合评价模型,并通过实例分析和计算,证明该学科水平评估体系合理、有效、可行。     

基于ECA规则的业务行为描述方法

给出了业务行为的形式化描述,并在此基础上利用ECA规则详细给出了业务行为过程的描述方法、业务行为内部活动之间的关系模型,以及不同业务行为之间的关系模型,使业务行为过程描述变得清楚,而且有利于机器的自动解释。基于ECA规则的业务过程模型对过程的调整和动态变化带来了方便,增强了其适应变化的能力。     

Semiparametric linear transformation models for current status data

Current status data arise when the death of every subject in a study cannot be determined precisely, but is known only to have occurred before or after a random monitoring time. The authors discuss the analysis of such data under semiparametric linear transformation models for which they propose a general inference procedure based on estimating functions. They determine the properties of the estimates they propose for the regression parameters of the model and illustrate their technique using tumorigenicity data.     

共青团围绕党的中心任务而奋斗的百年历程及基本经验

作为党的助手和后备军,中国共产主义青年团紧跟党的步伐,围绕党的中心任务,走过了百年辉煌历程。百年来,共青团坚持党的领导,将党领导团正确的方针政策落到实处;坚持改革,不断增强团围绕党的中心任务而奋斗的能力;教育引导青年,重视青年在革命、建设、改革中的作用,在新民主主义革命时期、社会主义革命和建设时期、改革开放和社会主义现代化建设时期、新时代中国特色社会主义建设时期都作出了重要贡献。未来建设中,共青团要不断突出政治性,增强先进性,保持群众性,巩固、夯实、筑牢其围绕党的中心任务而奋斗的领导基础、政治基础和青年群众基础。     

论交际法在大学英语教学中的局限性

本文通过对大学英语教学特点的分析,探讨了大学英语教学过程能否交际化的问题,从理论和实践两方面论述了外语课堂所培养的交际能力与社会交际能力之间的差异,最后指出“弱式”交际能力的理论对大学英语教学更具有实际指导意义。     

Dynamic reliability models with conditional proportional hazards

A dynamic approach to the stochastic modelling of reliability systems is further explored. This modelling approach is particularly appropriate for load-sharing, software reliability, and multivariate failure-time models, where component failure characteristics are affected by their degree of use, amount of load, or extent of stresses experienced. This approach incorporates the intuitive notion that when a set of components in a coherent system fail at a certain time, there is a jump from one structure function to another which governs the residual lifetimes of the remaining functioning components, and since the component lifetimes are intrinsically affected by the structure function which they constitute, then at such a failure time there should also be a jump in the stochastic structure of the lifetimes of the remaining components. For such dynamically-modelled systems, the stochastic characteristics of their jump times are studied. These properties of the jump times allow us to obtain the properties of the lifetime of the system. In particular, for a Markov dynamic model, specific expressions for the exact distribution functions of the jump times are obtained for a general coherent system, a parallel system, and a series-parallel system. We derive a new family of distribution functions which describes the distributions of the jump times for a dynamically-modelled system.     

非退化扩散过程极性的充分条件

讨论了多维非退化扩散过程样本轨道的性质,得到了其极性的充分条件     

A Class of Efficient Non-parametric K-sample Tests for Multivariate Counting Processes with Frailties

A K -sample testing problem is studied for multivariate counting processes with time-dependent frailty. Asymptotic distributions and efficiency of a class of non-parametric test statistics are established for certain local alternatives. The concept of efficiency is to show that for every non-parametric test in this class, there is a parametric submodel for which the optimal test has the same asymptotic power as the non-parametric one. The theory is applied to analyse a diabetic retinopathy study data set. A simulation study is also presented to illustrate the theory     

Circuit optimization via sequential computer experiments: design of an output buffer

In electrical engineering, circuit designs are now often optimized via circuit simulation computer models. Typically, many response variables characterize the circuit's performance. Each response is a function of many input variables, including factors that can be set in the engineering design and noise factors representing manufacturing conditions. We describe a modelling approach which is appropriate for the simulator's deterministic input–output relationships. Non-linearities and interactions are identified without explicit assumptions about the functional form. These models lead to predictors to guide the reduction of the ranges of the designable factors in a sequence of experiments. Ultimately, the predictors are used to optimize the engineering design. We also show how a visualization of the fitted relationships facilitates an understanding of the engineering trade-offs between responses. The example used to demonstrate these methods, the design of a buffer circuit, has multiple targets for the responses, representing different trade-offs between the key performance measures.     

NFCAPP系统中工序图的生成

主要探讨了NFCAPP系统中工序图生成的原理、方法、工序图数据的存贮结构及工序图的输出.