多媒体声频监控系统开发

研究了把多媒体技术引进监控领域从而改善现有的报警形式．提出了多媒体声频监控系统的结构，并在运用小波分析等数字信号处理算法的基础上，达到了对声音（特别是周期性声音）的变化进行同步声频报警的监控目的．     

拉普拉斯变换在聚合物粘弹性理论中的应用

将拉普拉斯变换应用于聚合物粘弹性理论，使粘弹性材料的特性函数如松弛模量、蠕变柔量以及表示动态力学性能的函数之间的关系简单明了，并用拉氏变换定义松弛谱和推迟谱，将各粘弹函数相互联系起来．     

适于SPICE仿真,拓扑不变的数字电路模型

本文提出了适于ＳＰＩＣＥ程序仿真、拓扑不变的组合逻辑电路模型。采用这种模型，ＳＰＩＣＥ程序就可以直接分析组合逻辑电路，甚至模糊逻辑电路。这种方法扩展了ＳＰＩＣＥ程序的使用范围。     

改进ROI模型及其在工业企业生产率分析中的应用

本文在David M Miller提出的原始ROI模型基础上经过改进和发展,提出了一个改进ROI模型,考虑到综合要素生产率变化和价格等其他因索变化对企业盈利能力影响的定量关系。建立了多层次的生产率分解测算系统,并结合一个具体的国营工业企业进行了测算和分析。     

堆山工程软土地基Biot固结的非线性有限元分析

本文在文献[1]、[2]给出的软土地基Biot固结的有限元构式及程序基础上,对某大型堆山工程分级加荷施工过程中,软土地基的固结变形,附加应力及超孔隙水压力分布,塑性区的开展等进行了弹性非线性有限元的计算分析,得出了在理论和工程应用上一些有意义的结论。本文的计算方法和结果,可供工程技术人员在类似工程的初步设计时借鉴和参考。有些内容尚可进一步研究和探讨。     

一阶闭环TAR模型的应用及其系数估计的渐近性质

应用一维一阶闭环TAR模型拟合中国的消费与积累关系。并对二维一阶自激TAR模型,研究了它的系数估计,获得了估计的强相容性和渐近正态性的一个充分条件。     

铁路运用BOT方式进行投融资初探

通过对铁路运用ＢＯＴ 方式进行投融资的利弊分析,提出铁路实际ＢＯＴ 运作策略建议,旨在为加快我国的铁路基础设施建设服务     

Representation of the space of polyanalytic functions as a direct sum of orthogonal subspaces. Application to rational approximations

Suppose thatD={z:|z|<1}, L ₂ (D) is the space of functions square-integrable over area inD,A _k (D) is the set of allk-analytic functions inD, (A ₁ (D)=A(D) is the set of all analytic functions inD),A _k L ₂ (D)=L ₂ (D)∩A _k (D),A ₁ L ₂ (D)=AL ₂ (D),

Two-dimensional asymptotic expansions for large deviations of spherically distributed random vectors if the dominating point degenerates asymptotically

A geometric approach to asymptotic expansions for large-deviation probabilities, developed for the Gaussian law by Breitung and Richter [J. Multivariate Anal.,58, 1–20 (1996)], will be extended in the present paper to the class of spherical measures by utilizing their common geometric properties. This approach consists of rewriting the probabilities under consideration as large parameter values of the Laplace transform of a suitably defined function, expanding this function in a power series, and then applying Watson’s lemma. A geometric representation of the Laplace transform allows one to combine the global and local properties of both the underlying measure and the large-deviation domain. A special new type of difficulty is to be dealt with because the so-called dominating points of the large-deviation domain degenerate asymptotically. As is shown in Richter and Schumacher (in print), the typical statistical applications of large-deviation theory lead to such situations. In the present paper, consideration is restricted to a certain two-dimensional domain of large-deviations having asymptotically degenerating dominating points. The key assumption is a parametrized expansion for the inverse $\bar g^{ - 1} $ of the negative logarithm of the density-generating function of the two-dimensional spherical law under consideration.     

Représentations des algèbres de clifford des formes binaires et ternaires cubiques

Clifford algebras of polynomial forms of degreed>2 defined by N. Roby are infinite dimensional when the module has rank bigger than 1. So the study of their representations differs from that of Clifford algebras of quadratic forms. Some authors have established several results in this domain, especially in the case of binary cubic forms, which can be found in the bibliography. In the first section of this paper, we consider the case of binary cubic forms and the base fieldK is algebraically closed. We define an explicit family of irreducible representations of their Clifford algebras, indexed by only one parameter, such that every 3-dimensional representation is equivalent to an element of this family. When the form is ternary cubic, Revoy and Tesser on one hand, Van den Bergh on the other, proved in two different ways, in [7] and [9] respectively, the existence of 3-dimensional linearizations. In the last section, we show directly that the number of classes of 3-dimensional representations is finite and non zero.