Poisson单和—类广义Poisson单的刻划

讨论了Ｐｏｉｓｓｏｎ单和一类广义Ｐｏｉｓｓｏｎ单的基本刻划问题。     

A Study of Evaluation System of Restricting Factors in Training Students‘ Qualities

This paper studies evaluation system of restricting factors in training students' qualities by modern mathematical method of analysis hierarchy process and principal factor analysis, and to build up a mathematical model of evaluation system.     

Study of Multistage Project Risk Identification-Assessment Process Based on Objective Orientation

Risk management of projects is about the real time ev aluation and making of decisions proactively in order to maximize the probabilit y of achieving or surpassing the targets set for project objectives. Project objective generally includes three elements: time, cost, quality. Risk occurrin g in the projects will affect these three factors to some various degrees in the end. There are different emphases in each stage and integrated balanced goals b etween the three factors. A large complex engineering ...     

反馈网络中电位器对调节器性能的影响

通过对各种类型的调节器中含有电位器时传递函数的求解分析,得出接入电位器后对调节器的比例放大系数、微分时间常数及积分时间常数的影响结果,并使多种调节器在形式上得到了统一,根据需要可方便地调节电位器使其性能达到设计的需要.     

基于三阶累积量奇异值分解的雷达目标识别

基于一维距离像三阶累积量矩阵的奇异值分解 ,由非零奇异值构成奇异值矢量作为正则子空间法的输入 ,提出一种雷达目标一维距离像识别方法 ,对目标进行分类识别。该方法一方面利用三阶累积量提高了抗噪性能 ,同时又使用非零奇异值矢量减少了存储量与运算量。仿真实验结果表明 :在低信噪比 ,该方法的识别率高于特征子空间法     

Ruin Probability with Variable Premium Rate and Disturbed by Diffusion in a Markovian Environment

We consider a risk model with a premium rate which varies with the level of free reserves. In this model, the occurrence of claims is described by a Cox process with Markov intensity process, and the influence of stochastic factors is considered by adding a diffusion process. The integro-differential equation for the ruin probability is derived by a infinitesimal method.     

基于SVG的WebGis中矢量图形处理研究

在对WebGis中的地理空间信息的数据格式的分析中，客户端浏览器不能直接处理(显示)矢量格式的地理信息数据．通常都是在服务器端把矢量格式的数据转换为栅格数据后，再传输给客户端，结果造成数据量的大增．SVG技术很好的解决了客户端显示矢量图形数据的问题．     

减少化验次数的一个优化模型

依据数学理论证明在一定条件下，可以减少化验次数；并给出了选择方法；建立了一个减少化验次数的优化模型。     

自级联式感应电动机控制系统的研制

描述了自级联式感应电动机的数学模型及其控制系统的结构,研制成功该类电机矢量控制系统样机.根据实验结果,分析了其动态和静态品质,得出此种类型电机控制系统完全可以达到与直流电动机控制系统相同性能的结论,提出了自级联式感应电动机进一步的应用前景.