Volume 21,Issue 5,1998 Table of Contents

1 Study on the Tracking Technique for Drawing the Moving Paths of the Submicron Particles'''' Browian Movement

Chen Wei , He Zhangjiang , Luo Gang , Yang Guanling

1998, 21(5):1-4.

[Abstract](560) [HTML](0) [PDF 223.67 K](841)

Abstract:
The tracking algorithm for drawing paths of particle's Brownian motion in microscope TV computer system is presented in detail. A new technology method that trackes Brownian motion paths and draws particle's size & size distribution is introduced.

2 Lattice Drift Technic of the Single Integral of Matrix Function and its Applications

Zhang Zongcan , Hu Chenguo , Fang Zhengyu

1998, 21(5):5-14.

[Abstract](467) [HTML](0) [PDF 356.29 K](623)

Abstract:
We have set up the lattice drift technic of the single integral of matrix function and expounded in detail its special mathematical meaning; and appied this technic in the lattice calculation of the general rotation operator matrix for the quantum system in discrete bases, and using the results obtained, we calculate the evolution ratio of the probabitity distribution for the two-dimensional superposition states under the action of a general rotation operator.

3 A Design Method for Composite Ply Containing Preformed Hole

Yang Yunmin , Peng Xianghe , Chen Yuanqiang

1998, 21(5):15-19.

[Abstract](535) [HTML](0) [PDF 224.28 K](676)

Abstract:
A iteration method for the orientation and the distribution of fibers in a composite ply with a pre-formed hole is proposed, which is based on the FEM analysis and the corresponding criterion of strength and continuous condition of fibers. It is shown that, there is marked increase of the load carrying capability compared with that of the ply with a drilled hole. The obtained result can further be extended to the design of composite laminate with pre-formed holes.

4 The Method and Error Analysis of On-line Measuring the Diclectric Loss of High Voltage Capacitive Apparatus with Microcomputer

Tang Ju , Sun Caixin , Gou Haifeng , Chen Rongzhu

1998, 21(5):20-24.

[Abstract](577) [HTML](0) [PDF 235.59 K](818)

Abstract:
以电压，电流过零相位差原理为基础。分析了测量的误差来源，给出了计算公式；利用单片计算机和配套的软件，作为信号采集，数据处理和计算的工具，实现了对高电压电容型设备介质损耗、等效电容和系统频率的在线测量。

5 Emulator of A-bucket Algorithm applying to the Surface Detection

Xie Zhendong , Feng Jun , Pan Yingjun

1998, 21(5):25-29.

[Abstract](534) [HTML](0) [PDF 216.08 K](869)

Abstract:
An important problem in phase-shifting interferometry is to get rid of the phase-shift error in order to enhance the measurement accuracy. In this paper, a new method that can be used to calculate the real phase-shift from the interference pattern is proposed and emulated.

6 An Image Reconstruction Fast Algorithm Based on Orthogonal Wavelets Derived from Symmetric Scale Functions

Liu Yiwu , Zhang Bangli , Wang Guangxue ,

1998, 21(5):30-34.

[Abstract](481) [HTML](0) [PDF 185.84 K](595)

Abstract:
A new image reconstruction algorithm is presented, based on orthogonal wavelets derived from symmetric scale functions. The analysis and practice show that the method lessens greatly the computational time,and improves the reconstruction quality.

7 Realizing Continuous Wavelet Transform with linear Analog filter

Tian Fengchun , Jin Jicheng

1998, 21(5):35-40.

[Abstract](565) [HTML](0) [PDF 264.57 K](854)

Abstract:
A method of realizing wavelet transform with linear analog filter is proposed. It shows another new way of obtaining fast wavelet transform. It has also given out a procedure of constructing such a filter network and verified by the Mexican hat Wavelet.

8 The Open Software System for Electrical Impedance Computed Tomography

Li Xianliang , Zhou Shouchang

1998, 21(5):48-51.

[Abstract](457) [HTML](0) [PDF 210.29 K](626)

Abstract:
The components of open software system for Electrical Impedance Computed Tomography and their functions under Windows environment are introduced, and the ways to extend system's functions are given.

9 The Analysis of Bending Deformation of Cutter Tooth and Gear Tooth During Shaving Process

Liang Xichang , Lu Ming , Zheng Xiaohua ,

1998, 21(5):58-62.

[Abstract](413) [HTML](0) [PDF 247.11 K](122)

Abstract:
In this paper,the variation pattern of the contact point on cutter tooth and gear tooth is analyzed during gear shaving process. According to the shaving force measured by dynamometer, the deformation of cutter tooth and gear tooth at the contact point is calculated by appying the three dimension finite element method. The deformation curve of cutter tooth and gear tooth are obtained by analying deformation in shaving domain. It is the basis of studying relation between shaved amount and deformation.

10 Investigation on Improving Manufacturing Precision of ZC1 Worm

Shi Wankai , Qin Daton , Tian Chuanbao

1998, 21(5):63-69.

[Abstract](525) [HTML](0) [PDF 268.47 K](179)

Abstract:
Based on coordinate measrement of tooth surface of ZC1 worm, the deviation function for evaluating tooth surface is established. According to minimal zone principle, the profility of tooth surface of worm is evaluated. The machining errors of the worm are divided into setting error and adjusting error of the machine and tool. By error compensation, the setting error and adjusting error are corrected and the manufacturing precision of the worm is improved.

11 Conbination of On-line Methods and Off-line Methods for On-line Recognizing Un-constraint Handwritten Numerals

Zhao Xuejun , Yu Chuzhong , Qiao Jin , Xiao Tong ,

1998, 21(5):71-74.

[Abstract](672) [HTML](0) [PDF 199.52 K](117)

Abstract:
In this paper, we propose a scheme of recognizing un-constraint handwritten numerals,in which on-line methods and off-line methods are combined. This scheme inherits the good quality,and overcoming the defect of both on-line methods and off-line methods. Experiments show the scheme has achieved impressive performance and the preliminary results are very encourgine for recongnizing un-contraint handwritten numerals.

12 The Busy Period of Er/M/1 Queueing System

Sun Rongheng

1998, 21(5):75-78.

[Abstract](418) [HTML](0) [PDF 126.31 K](83)

Abstract:
设θ为Ｅｒ／Ｍ／１排队系统的忙期，Ｍ为在一个忙期中服务完的顾客数。给出了θ的ＬＳＴ和Ｍ的ＰＧＦ以及θ，Ｍ的前两阶矩。

13 Using the Eigenvalue Method to Modify the Direct Consumed Coefficients of the Input-Output

Yi Zhengjun

1998, 21(5):79-84.

[Abstract](409) [HTML](0) [PDF 201.63 K](100)

Abstract:
This paper considered the eigenvector of transition matrix of the direct consumed coefficient matrix as constant vector,the eigenvalnes are modified. Then, we can modify the direct consumed coefficients.

14 A Proof on Conjecture of Knight-tour Problem

Bai Sen , Yang Xiaofan , Bai Lin ,

1998, 21(5):85-89.

[Abstract](687) [HTML](0) [PDF 279.19 K](236)

Abstract:
对n×n棋盘上的骑士旅游问题进行了研究，证明了猜想：当n≥5且为偶数时，以任意点作为初始点都有解。

15 Overvoltage and Its Damage by Interrupting Unload By-pass Bus with Isolating Link

Du Guang

1998, 21(5):90-93.

[Abstract](442) [HTML](0) [PDF 238.39 K](164)

Abstract:
According to the equivalent circuit of unload by- pass bus, generation and developement of the overvoltagr by interrupting unload by-pass bus with isolating link were presented. Through representative fault examples, the reasons of flashover caued by interrupting unload by-pass bus with isolating link under the circumstances of high humidity were analyzed.

16 Experimental Study on Drying Coefficient of Noodle

Zhu Xun , Shen Jiqun , Wu Zhengzhong ,

1998, 21(5):94-99.

[Abstract](555) [HTML](0) [PDF 298.43 K](130)

Abstract:
In this paper, the characteristics of noodle in different stages during drying process are analysed. And the influence of thermal parameters of dry media on drying process are studied by a series of experiments. On the basis of the experimental results, the methods are introduced for calculating the drying coefficient K, and the different drying coefficients obtained from part of the experimental conditions are given.

17 Effect by Hot Rolling Process on Wall Thickness Difference in a Same Steel Pipe

Zhang Caian , Lu Zhiun , Du Shengkang ,

1998, 21(5):100-103.

[Abstract](746) [HTML](0) [PDF 192.17 K](82)

Abstract:
The causes producing wall thickness difference in a same pierced shell are expounded and the influences of piercing, rolling and mandrel drawing on the difference are studied.

18 An Improving Design for FT-12 Electric Desk Fan Assembly Line

Luo Bing , Zeng Rui

1998, 21(5):104-110.

[Abstract](601) [HTML](0) [PDF 328.02 K](714)

Abstract:
This paper analyzes the FT-12 electric desk fan assembly line,and discusses the methods of improving the work stations design using the principles of industrial engineering(IE),the concepts of systems engineering and the techniques of work study. Practice proves that the productivity and the economic benefit of the manufacturing company are greatly increased, with only a small amount of additional investment and without additional labor and equipment input.

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