语篇意识对翻译质量的影响

语篇是翻译中最大的交际单位 ,其交际功能的实现与否决定翻译的成功。本文揭示了语篇因素对翻译的作用。     

浅谈创造的心理深度

创造是一种人工性的从无到有的实现过程，是人类特有的社会活动，具有明显的新颖性和独特性。动机与兴趣、想象与直觉、感觉与思维、灵感与哲学、胆识与情结等人的思维感情心理因素是激发个人创造力的重要内容。     

现代小说中的时空关系

本文主要以现代文学中的小城镇小说为个案,来探讨现代小说中的时空关系。作为小说的主要构成因素,时间与空间并不能截然分开,彼此之间存在着交叉和相互转化的关系,如空间的时间化或时间及小说本身的空间化。这种种时空关系除了拓展了现代小说的表现手法外,还蕴涵或承载着作家的、社会的、时代的、民族的等等众多信息和意义。     

适合恒等式[x,y]=[（xy）^n,（yx）^m]的结合环

本文研究了满足恒等式[x,y]=[(xy)^n,(yx)^m]的结合环R的一些性质，其中，n,m为依赖于x,y的正整数，且至少有一者大于1，最后证明了如果n,m是有界的话，那么R是一个交换环。     

Estimators for the Horvitz-Thompson Statistic Based on Some Posterior Distributions

The knowledge of first-order inclusion probabilities characterizing a sampling scheme is essential in design-based estimation of finite population totals. Sometimes the scheme is so complex that these probabilities cannot be computed exactly. Instead, both inclusion probabilities and corresponding sampling weights are simulated. One empirical Horvitz-Thompson estimator for a population total using simulation-based range-preserving estimates of sampling weights is obtained by applying the restricted maximum likelihood principle directly to each inclusion probability. The assumption of a prior distribution and the assessment of resulting posterior for a weight lead to two other estimators. One of them is the posterior mean estimator of the Horvitz-Thompson statistic. In a simulation involving Polish agricultural census data and a sequential fixed-cost sampling scheme, this estimator has attractive properties also from a frequentist point of view.     

Unique nontransitive measurement on finite sets

Two themes in the theory of measurement that have been studied extensively in the past few years are numerical representations of nontransitive binary comparison structures and uniqueness in finite measurement systems. This paper brings the two together by exploring the solutions to a nontransitive, additive model that are unique up to multiplication by a positive constant. The model relates to various contexts including decision under risk, evaluation of objectives, comparative probability, and voting theory. The family of unique solutions for the model is shown to be extremely rich and varied.     

基于有限差分的化学剂平面运移规律数值模拟

在化学驱中，各种化学剂在地层中的浓度对于驱油是极为关键的，理想的情况是合理设计化学剂注入参数（注 入浓度、注入量和注入速度），使得地层各处化学剂的浓度接近实验室设计的最佳浓度，从而驱油效率最高。化学剂在 地层中除正常的对流外，还会发生扩散和吸咐，而平面渗流中，各处渗流速度的不同，使得化学剂在平面的浓度分布比 一维情况复杂得多。依据有限差分法和雅可比迭代方法，根据达西渗流定律确定平面渗流速度场和压力场分布，再根 据已求得的速度场结合化学剂运移的对流弥散方程，求解得到了化学剂的浓度场。数值模拟结果给出了不同时刻化 学剂在地层中的浓度分布，并针对不同的运移滞后系数、弥散系数和化学剂注入量，分析了这些参数对于化学剂分布 的影响。     

The likelihood ratio test for homogeneity in finite mixture models

The authors study the asymptotic behaviour of the likelihood ratio statistic for testing homogeneity in the finite mixture models of a general parametric distribution family. They prove that the limiting distribution of this statistic is the squared supremum of a truncated standard Gaussian process. The autocorrelation function of the Gaussian process is explicitly presented. A re‐sampling procedure is recommended to obtain the asymptotic p‐value. Three kernel functions, normal, binomial and Poisson, are used in a simulation study which illustrates the procedure.     

D-optimal design for a quadratic log contrast model for experiments with mixtures

A practical method is suggested for solving complicated D-optimal design problems analytically. Using this method the author has solved the problem for a quadratic log contrast model for experiments with mixtures introduced by J. Aitchison and J. Bacon-Shone. It is found that for a symmetric subspace of the finite dimensional simplex, the vertices and the centroid of this subspace are the only possible support points for a D-optimal design. The weights that must be assigned to these support points contain irrational numbers and are constrained by a system of three simultaneous linear equations, except for the special cases of 1- and 2-dimensional simplexes where the situation is much simpler. Numerical values for the solution are given up to the 19-dimensional simplex     

基于波导模式正交的新吸收边界条件

提出了一种可同时吸收波导内行波和雕落波型的新型吸收边界条件。与常规的吸收边界条件相结合，在这种新的吸收边界条件下，可将边界紧置于不连续区附近而保持计算精度，使计算时间和对计算机内存的要求都大大下降。数值计算的例子表明用新的边界条件计算出的结果与用常用吸收边界条件计算出的结果吻合得很好