从着眼点的转移看英语动词的时和体

在我们观察、认识客观世界的活动中,着眼点起着重要的作用。它决定我们对某事物的观察内容以及我们对其产生的概念,人们总是通过转移着眼点来认识周围更多的事物。自从兰盖克提出这个概念以来,有关讨论着眼点及其转移的文章并不多,兰盖克本人也未对其做进一步的研究。文章试图以着眼点的转移理论来分析英语动词的时和体,它具有较强的解释力,可以尝试应用于英语教学中。     

浅谈竞技跆拳道的头部防守方法

防守是跆拳道技术重要的组成部分,本文通过对跆拳道的比赛观察与教学实践,对防守技能的构成作了阐述,并对防守技术在运用中的要点作了具体分析。     

Perfect Simulation for Length-interacting Polygonal Markov Fields in the Plane

Abstract.  The purpose of this paper was to construct perfect samplers for length-interacting Arak–Clifford–Surgailis polygonal Markov fields in the plane with nodes of order 2 ( V -shaped nodes). This is achieved by providing for the polygonal fields a hard core marked point process representation with individual points carrying polygonal loops as their marks, so that the coupling from the past and clan of ancestors routines can be adopted.     

进一步转变政府职能是完善我国市场经济体制的关键

进一步转变政府职能十分重要 ,势在必行。它是深化经济体制的关键 ;是推进政治体制改革的重点 ;是依法行政的要求 ;是我国应对入世的首要工作。一句话 ,它是完善社会主义市场经济体制的关键     

内容产业：21世纪信息产业新的生长点

结合我国目前技术产业发展的单一性和传媒业的相对垄断性,以及信息用户对信息和技术需求的高度融合等三个方面,分析了我国信息产业的未来发展核心必将是内容产业。     

几何分布产品不完全数据场合下的统计分析

几何分布是离散型寿命分布中最为重要的分布之一,许多产品的寿命（比如开关等）都可以用几何分布来描述。由于几何分布的无记忆性,它在可靠性理论与应用概率模型中有着非常重要的地位。目前,对关于几何分布在全样本场合、截尾样本场合以及加速寿命试验场合下参数的统计分析已经有了广泛的研究。并且有着重要的理论与应用价值。因此将不完全数据场合下的几何分布问题转化为指数分布问题,再利用指数分布的已有结果首次得到了几何分布在缺失数据场合和分组数据场合下参数的近似点估计,Monte—Carlo模拟算例结果令人满意,说明该方法是可行的。     

The Event: An Underexamined Risk Concept

Some of the terms used in risk assessment and management are poorly and even contradictorily defined. One such term is “event,” which arguably describes the most basic of all risk‐related concepts. The author cites two contemporary textbook interpretations of “event” that he contends are incorrect and misleading. He then examines the concept of an event in A. N. Kolmogorov's probability axioms and in several more‐current textbooks. Those concepts are found to be too narrow for risk assessments and inconsistent with the actual usage of “event” by risk analysts. The author goes on to define and advocate linguistic definitions of events (as opposed to mathematical definitions)—definitions constructed from natural language. He argues that they should be recognized for what they are: the de facto primary method of defining events.     

基于非正态分布的投资风险测度方法

本文通过计算风险点对投资项目的风险进行定量分析,引进当量正态化的方法解决了独立变量非正态分布下的风险的测度问题,在此基础上提出一种新的投资项目风险测度方法。     

具有正弦、余弦、正切鉴相特性的一类三阶锁相环路方程的定性分析

本文对采用理想积分滤波器和RC积分滤波器得到正弦、余弦、正切鉴相特性三阶锁相环路方程，运用首次近似方法，对等价系统判定平衡点渐近稳定、不稳定及拓扑结构，运用Liapunov函数研究渐近稳定的吸引域，进而提供所论环路方程有失锁点。     

The analytic hierarchy process with interval preference statements

In the analytic hierarchy process (AHP), interval judgments instead of precise ratios are widely accepted and can be practically used to solve decision-making problems when uncertainty exists because of scant information available or insufficient understanding of the problem. This paper presents a simple and effective method for finding the extreme points in a range of interval ratios (such as loose articulation, minimum number of interval ratios, and general interval ratios) and ultimately for establishing the dominance relations among alternatives using the identified extreme points. This is followed by an enumeration or simulation approach to manage situations in which the best or a full ranking of alternatives remains unidentified.