n维变差·n重导数·N-n重积分

给出了n元函数在n维区间的变差表达式 .定义了n重导数 ,n元绝对连续函数 ,广义n重原函数及牛顿n重积分 .该积分包括正常积分和无界函数积分 ,它使积分与微分的互逆关系更加明确     

对中国共产党八十年变化发展的辩证思考

从唯物辩证法变与不谈判原理入手，研究中国共产党八十年把握变与不变原理的状况及教训，给人以新的思考和启示，从理论上探讨了在新时期如何认识和把握变与不变之间的关系。     

Variations in Variation and Selection: The Ubiquity of the Variation-and-Selective-Retention Ratchet in Emergent Organizational Complexity

The variation and selection form of explanationcan be prescinded from the evolutionary biologyhome ground in which it was discovered and forwhich it has been most developed. When this isdone, variation and selection explanations arefound to have potential application to a widerange of phenomena, far beyond the classicalbiological ground and the contemporaryextensions into epistemological domains. Itappears as the form of explanation most suitedto phenomena of fit. It is also found toparticipate in multiple interestingrelationships with other forms of explanation. We proceed with an examination of multiplekinds of phenomena, interrelationships withother members of the family of forms ofexplanation, and some novel applications evenwithin the home ground of evolutionary biology.     

具有共轭点的类光测地线的变分

在广义相对论中有一条重要的定理：如果一条类光测地线γ0(λ)在(p，q)间存在一点γ沿γ0(λ)共轭于p，那么γ0(λ)的变分将给出连接p，q的类时曲线。证明了这样得到的类时曲线趋于类光测地线时，它的固有加速度趋于无穷大。     

南水北调对我国北方局地气候影响的一个理论分析

从简单的一维气柱能量平衡模式研究在我国北方土壤中增加水份含量后引起的局地气候变化，应用气柱中的辐射、降水、水汽和内，位能辐合间的平衡，可以推导出降水、温度、地表反射率各变化量之间的关系，而地表反射率的变化又与地表水份含量有关；而从地表能量平衡方程也可得到降水、温度、地表水份含理各变化量之间的关系，从上述这些关系最终可以得到地表水分变化对降水变化和温度变化的影响，结果表明降水和温度变化与植被复盖度有关。在我国西北地区，当土壤水增加1／15，随植被复盖度的从大到小，年降水可增加原年降水量的1／30－1／11，在华北地区，当土壤水增加1／20，随植被复盖度的从大到小，年降水可增加原年降水量的降低均与土壤水的增加量成正比。而能量平衡模型在西北地区更为适合。     

含参数λ的Euler型微分方程的求解公式

提出含参数λ的二阶齐次Euler微分方程,并借助变量替换法、线性化法、降阶法、交换变量位置法给出几类含参数λ的二阶齐次Euler型微分方程的求解公式,简化其求解过程.     

温光条件对冬茬黄瓜地上部生长发育及产量形成的影响

本试验连续两年观测了冬茬黄瓜生育期间的温度、光照变化以及黄瓜生长发育动态和产量形成规律。结果表明：受低温弱光影响，冬茬黄瓜植株节间长，叶片分布稀疏，叶面积受人为落蔓作用呈波动式变化；结果期间叶面积指数为１～２．４０。１２月中旬至元月中旬黄瓜果实长成时间平均２７．９天，日增长量仅４．８１ｇ，至４月上旬果实生长量为深冬的３倍。投影寻踪回归分析表明，日照时数、日总辐射量和有效积温对冬茬黄瓜产量影响最大，地温大于气温对产量的影响。     

三峡大学图书馆人工照明光环境研究

采用JD-3型照度计,对三峡大学图书馆阅览区工作面上的人工照明光环境进行测量,从数量上比较科学地得出了该馆的照度数值.通过对所得的数据进行统计分析,在与现行的相关标准进行比较后,得出照明度严重不足的结论.通过对照明不足的现象进行研究后,提出改进方法和解决途径.采用了多种方法进行改进后,问题基本得到了解决.     

Woolen Textile Simulation by Synthesis Mapping

This paper proposes a new rapid and efficient method for woolen textile simulation-Cmapping synthesize. This method uses a stochastic function to simulate fuzz on some types of wool textile. The wool yarns are simulated on the basis of Phong illumination model. In order to obtain a visual effect of the wool textile with fuzz, the light intensity of fuzz is synthesized as a color parameter in the Phong illumination model after the yarns have been simulated. The model of woolen textile with fuzz can be built eventually. With synthesis mapping methods, user can choose his favorite fuzz density on the wool by controlling some appropriate parameters.     

Genetic background of phenotypic variation

A noteworthy feature of the living world is its bewildering variability. A key issue in several biological disciplines is the achievement of an understanding of the hereditary basis of this variability. Two opposing, but not necessarily irreconcilable conceptions attempt to explain the underlying mechanism. The gene function paradigm postulates that phenotypic variance is generated by the polymorphism in the coding sequences of genes. However, comparisons of a great number of homologous gene and protein sequences have revealed that they predominantly remained functionally conserved even across distantly related phylogenic taxa. Alternatively, the gene regulation paradigm assumes that differences in the cis-regulatory region of genes do account for phenotype variation within species. An extension of this latter concept is that phenotypic variability is generated by the polymorphism in the overall gene expression profiles of gene networks. In other words, the activity of a particular gene is a system property determined both by the cis-regulatory sequences of the given genes and by the other genes of a gene network, whose expressions vary among individuals, too. Novel proponents of gene function paradigm claim that functional genetic variance within the coding sequences of regulatory genes is critical for the generation of morphological polymorphism. Note, however, that these developmental genes play direct regulatory roles in the control of gene expression.