模糊聚类分析法在广西区域经济中的应用

运用模糊聚类分析法对广西14个市、地区的综合实力进行模糊聚类分析。结果广西分为5类地区，第1类为南宁市、柳州市和桂林市；第2类为玉林市和南宁地区；第3类为梧州市、北海市、钦州市、贵港市、百色市和河池市；第4类为贺州市和来宾市；第5类为防城港市，分析结果与广西的实际情况比较吻合。     

现浇钢筋混凝土暗梁空心板在某建筑中的应用

介绍了现浇暗梁空心楼盖技术,结合帝景花园商场工程对结构梁板的设计计算进行了说明。     

由微分学和回路方程的物理意义讨论h参数

由晶体管输入和输出回路的偏微分方程,导出h参数的物理意义,并由此画出输入和输出端的等效电路.     

Numerical Simulation of Peen Forming

Peen forming is the most important process for the manufacturing of integral wing skin panels. In order to determine peening parameters, an equivalent deformation theory was proposed in which peening parameters are transformed into equivalent nodal forces. In this study, a linear elastic shell finite element method is adopted. Other related problems such as wing skin panel modeling and peening scheme analysis were also outlined. The method has been applied to manufacturing panels of a certain Chinese aircraft and was proved to be effective in reducing peening experimental tests and improving products quality.     

等效优先系数法确定矿井设计方案的探讨

在对矿井设计方案比选常用的“等效系数法”和“优先系数法”进行分析、比较、评述的基础上，结合实际，提出了等效优先系数法确定矿井设计方案的设想，并对评价因素进行了分析评价，给出具体实例。该方法使矿井设计方案的选择确定更加切合实际，可供有关设计单位和行业管理部门参考。     

Research of a newer spread-spectrum CDM telemetry communication system

In order to reduce the multiplexing interference and enhance the information data transmission efficiency of the common spread-spectrum telemetry communication system, based on the m-sequence' s parallel move equivalent sequence, one type of spread-spectrum CDM(code division multiplexing) telemetry communication system is issued. The method of anti-multiplexing interference of the system is given, i.e. through using the parallel move equivalent sequence to modulate the antipodal signal of each path's data, then transmitted with the same channel. Data transmission rate,the error probability and multiplexing interference of the proposed system are analyzed. Mathematic analysis provesthat the system not only holds all the merits which are inherent in common spread-spectrum telemetry communication system,but also has better transmission efficiency. Simulation result validated the proved conclusion.     

关于当量工序能力指数c′_p的近似展开

在文[1]中已引进当量工序能力指数,并已推得其计算公式为c'_p=(1/3)φ~(-1){(1/2)[φ(((T/2)+E)/σ))+φ(((T/2)-E)/σ))]} (1) 其中,φ(·)为标准正态分布的分布函数,φ~(-1)(·)为其反函数,T为公差,E为偏离距,σ为当分布中心与公差中心一致时的标准差。本文讨论它的线性与2次及5次多项式的近似问题。     

关于不等式(lnx)/(x-1)≤A_k(x)的构造性证明

文章利用构造性证明的方法给出了满足:①lnxx-1≤Ak(x),x>0且x≠1;②当x0+时,Ak(x)～x-1/k;③当x+∞时,xAk(x)～x1/k;④当x1时,Ak(x)-lnxx-1～ak(x-1)2k-2的代数函数Ak(x)(k=2,3,4)的表达式以及条件④中相应系数a2及a3的值,并利用该方法构造出了A5(x),求出了相应的系数a4及a5的值。     

一类图的匹配唯一性

本文证明了图κK1∪m2P2∪m3P3∪[∪↑i≥2m2ipi]∪dD4∪tT1、2、3∪sT1、2、4匹配唯一当且仅当dm2=dm3=0，其中κ、m2、m3、m2i(i≥2)、d、t、s都是非负整数。     

两参数Harnesses和广义Brown单

采用不同于M.Dozzi的方法讨论了广义Brown单的Harnesses,并给出其局部鞅刻划.通过推广张润楚提出的两参数过程的B-Harnesses定义,得到了具有连续轨道和平方可积过程的这种Harnesses对广义Brown单的表征。