工业一般指令端局远程监测系统的开发

鉴于生产中广泛应用的工业一般指令通信设备缺乏必要的远端端局监测功能,为了能实时跟踪了解现场端局的运行状态,从而提高工业一般指令通信设备的智能化管理水平和工作效率,开发了一套工业一般指令端局远程监测系统.     

The constrained longest common subsequence problem

This paper considers a constrained version of longest common subsequence problem for two strings. Given strings S₁, S₂ and P, the constrained longest common subsequence problem for S₁ and S₂ with respect to P is to find a longest common subsequence lcs of S₁ and S₂ such that P is a subsequence of this lcs. An O(rn²m²) time algorithm based upon the dynamic programming technique is proposed for this new problem, where n, m and r are lengths of S₁, S₂ and P, respectively.     

基于VC++6.0多媒体CAI课件中动画制作的研究

本文介绍了动画设计的基本原理，讨论了Windows位图的显示原理和显示方法。以一个动画制作的程序实例，详细叙述了使用VC 6.0设计多媒体动画软件的方法。     

钢筋混凝土旧桥常见病害产生原因及防治

根据对十余座桥梁检测情况以及相关献，论述了既有钢筋混凝土桥梁常见病害情况，分析了病害的发生原因。并提出了初步防治建议，它涉及确定既有钢筋混凝土桥梁的技术状况，采用相应的加固、改善措施，确保既有桥梁的安全性等方面。     

A Note on Testing for Homogeneity Among Effect Sizes Sharing a Common Control Group.

L. V. Hedges and I. Olkin (1985) presented a statistic to test for homogeneity among correlated effect sizes and L. J. Gleser and I. Olkin (1994) presented a large-sample approximation to the covariance matrix of the correlated effect sizes. This article presents a more exact expression for this covariance matrix, assuming normally distributed data but not large samples, for the situation where effect sizes are correlated because a single control group was compared with more than one treatment group. After the correlation between effect sizes has been estimated, the standard Q statistic for correlated effect sizes can be used to test for homogeneity. This method is illustrated using results from schizophrenia research. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

新疆灌溉用水定额分区初步研究

在综合分析新疆各地区地形地貌、气候特征、水资源状况、种植结构、农业灌溉用水现状和经济发展水平等因素基础上,采用共区优选法对新疆灌溉用水定额进行分区,并提出相应的改善措施。该结果可为提高新疆灌溉用水率和用水效率,以及为灌溉管理节水提供决策参考。     

Common subgraph isomorphism detection by backtracking search

Graph theory offers a convenient and highly attractive approach to various tasks of pattern recognition. Provided there is a graph representation of the object in question (e.g. a chemical structure or protein fold), the recognition procedure is reduced to the problem of common subgraph isomorphism (CSI). Complexity of this problem shows combinatorial dependence on the size of input graphs, which in many practical cases makes the approach computationally intractable. Among the optimal algorithms for CSI, the leading place in practice belongs to algorithms based on maximal clique detection in the association graph. Backtracking algorithms for CSI, first developed two decades ago, are rarely used. We propose an improved backtracking algorithm for CSI, which differs from its predecessors by better search strategy and is therefore more efficient. We found that the new algorithm outperforms the traditional maximal clique approach by orders of magnitude in computational time. Copyright © 2004 John Wiley & Sons, Ltd.     

墙体改革·生态环境·居住质量

结合可持续发展思想,简述了墙体改革的必要性、重要性和紧迫性     

细雨湿衣看不见 闲花落地听无声——试说汪曾祺小说意境的平淡美

汪曾祺小说意境的平淡美主要体现在三个方面 :一由于是写回忆 ,所以表现的内容超而不脱 .二长于以平淡的情态表现强烈的情感 ,言有尽而意无穷 .三外在形式极其自由 ,返朴归真     

基于矩阵变换的NTRUSign密钥生成算法

首次提出将矩阵变换应用于NTRUSign签名算法中,在NTRUSign签名算法中公开密钥和私有密钥的生成算法是最关键的部分,其实现时所花的时间占整个签名算法实现约一半以上的时间,直接影响NTRUSign的工作性能.矩阵是处理数学问题的重要工具,给出一种新的矩阵变换,并将之应用于求多项式的最大公因式问题中,且给出相应的求两个多项式最大公因式算法,并以该算法应用于NTRUSign中,得出NTRUSign密钥生成的优化算法.实验结果表明,该算法在寻找小多项式F和G比由JeffreyHoffstein给出的NTRUSign密钥生成算法的计算量和所占用的系统资源较少,该算法在生成密钥速度略快,为较有效的算法.