Volume 23,Issue 6,2000 Table of Contents

1 Experimental Study about the Plasma Activated Water on the Performance of the Concrete

LIAO Zhen-fang , TANG Chuan-lin , LIU Mei-sheng , ZHANG Feng-hua

2000, 23(6):1. DOI: 10.11835/j.issn.1000-582X.2000.06.003

[Abstract](794) [HTML](0) [PDF 305.91 K](1571)

Abstract:
A new good idea to improve the performance of the concrete by plasma activated water is put forward. The work principle of electrohydraulic impulsed technolaqe for producing plasma activated water is introduced. Some experimental data of improving the performance of the concrete by the plasma activated water are reported. The study shows that improving the performance of concrete by plasma activated water is practical and the view points provided by the authors is correct.

2 Digital Filtering with Zero Phase Error

JI Yue bo , QIN Shu ren , TANG Bao ping

2000, 23(6):4-7. DOI: 10.11835/j.issn.1000-582X.2000.06.004

[Abstract](2675) [HTML](0) [PDF 312.25 K](2481)

Abstract:
Aiming at the problem of phase error caused by normal filters in signal processing , summarizes the important meaning of digital filtering with zero phase error. Puts forward RRF Filtering which is a new way to realize digital filtering with zero phase error through reversing the time serials of the signal. Another way to realize digital filtering with zero phase error is suggested through reversing the time serials of normal filter. Testifies the way to realize digital filtering with zero phase error. Points out how to design the digital filter with zero phase frequency peculiarity. Solves the problem of phase error in DSP.

3 Integrated Quality System Research and Development Based on Browser/Server Model

LUO Shu qiang , HE Yu lin , FU Hong qiao , JIA Yan min

2000, 23(6):8-11. DOI: 10.11835/j.issn.1000-582X.2000.06.005

[Abstract](698) [HTML](0) [PDF 385.59 K](1344)

Abstract:
In this paper, the authors discuss the principium of browser/server model and expatiate on the characteristic of browser/server model. Elucidated the concept and connotation of integrated quality system, and emphatically researched the system structure and function model of the integrated quality system based on browser/server model.

4 Study on Dressing and Grinding Characteristics of Vitrified Bonded CBN Wheels

GUO Yin biao , YANG Ji dong , LIANG Xi chuang , kATUO SYOJI

2000, 23(6):12-15. DOI: 10.11835/j.issn.1000-582X.2000.06.006

[Abstract](842) [HTML](0) [PDF 295.41 K](1118)

Abstract:
This paper describes the dressing principle and its grinding characteristics of vitrified bonded CBN wheels trued by cup truer.Analyzing experiment data of grinding workpiece,the influence factor on wear of CBN wheel has been obtained,which wear of CBN abrasives and chippings adhered is the main resons in grinding hard steel,and surface abrasives melted is the major factors in grinding soft steel.

5 Study on the Nonlinear Vibration System with Slow-changing Parameters

LI Yi-nong , ZHENG Ling , WEN Bang chun

2000, 23(6):16. DOI: 10.11835/j.issn.1000-582X.2000.06.007

[Abstract](806) [HTML](0) [PDF 275.67 K](255)

Abstract:
The nonlinear vibration system with slow-changing parameters has been studied. This system has wide background in engineering. In this system the mass, stiffness and exciting force are changed slowly with time, so it is differient from the ordinary time-varied system. In this paper, the analytical method for the slow-changing systems is discussed, and the vibration feature is also studied based on the rotor system with slow-changing stiffness. At last, the way of the controlling the amplitude when the system passes through the resonant region is proposed.

6 The Study Evolution of Gear Electric Erosion Phenomenon

HU Gao ju , WEI Yun long , ZHANG Guang hui , HE Ze long , CAO Xin jin

2000, 23(6):19. DOI: 10.11835/j.issn.1000-582X.2000.06.008

[Abstract](670) [HTML](0) [PDF 422.06 K](292)

Abstract:
This paper introduces phenomenon of electric erosion of gear and the research condition and evolution of it; puts forward a point of view that a system of electric erosion of gear is a especial tribology system which is in relation to many subjects and in which many phenomena exist and coupling each other , moreover , it is very difficult and complex to study electric erosion of gear by experiment ; have made statistical datas about typical example of electric erosion of gear inland ,at this base ,summarizes characters of electric erosion of gear and the study means of it.

7 A Develop Mode Of The New Type Motorcycle

HONG Sha

2000, 23(6):23-26. DOI: 10.11835/j.issn.1000-582X.2000.06.009

[Abstract](689) [HTML](0) [PDF 342.34 K](207)

Abstract:
This paper introduced a develop mode of new type motorcycle. Based on research on apply techniques of general design products with ATOS,RP and PRO/E, idea design,structure design and entity dynamic embnator, celerity collection data to expedite rate of esse sculpt, manufacture of prompt pattern and small batch mould was researched, and the corresponding methods of tap mode of new motorcycle are proposed to meet the demands of products prompt development.

8 The Study on the Electric Erosion Mechanism of the Gear Surface

HE Ze-long , WEI Yun long , ZHANG Guang hui , HU Gao ju , CAO Xin jing , ZHU Xiao lu

2000, 23(6):27. DOI: 10.11835/j.issn.1000-582X.2000.06.010

[Abstract](797) [HTML](0) [PDF 422.50 K](396)

Abstract:
The bar and the cloud microcosmic appearance character of the electric erosion is described in this paper.The electric erosion mechanism of the gear surface has been set forth by setting up the model of electric erosion of the discharge not contacted and the model of electric erosion of discharge contacted. The electric erosion of the discharge not contacted would be taken place when the voltage is stronger and the lubricating oil film formed better between the space of the gear surface. The electric erosion of the discharge contacted would be taken place when the voltage is lower and the lubricating oil film formed not better between the space of the gear surface. The failure of the gear is accelerated by the action of the electric erosion and the friction wear together.

9 Time Domain Model of 2-d Road Roughness and Numerical Simulation

TANG Guang wu , CHENG Si yuan

2000, 23(6):31-34. DOI: 10.11835/j.issn.1000-582X.2000.06.011

[Abstract](1010) [HTML](0) [PDF 269.81 K](206)

Abstract:
An attempt is made to develop a two dimensional AR model of road roughness. Simulated and checked on computer, the road surface and spectrum are agreable with the ISO. The model developed in this paper is proved to be feasible and practicable.

10 Finite Element Analyses of Spherical Node of Coal Pipeline System of Blast Furnace

JIAN Kai-lin , ZHU Yu-zhun , LIN Bao-ru

2000, 23(6):35-37. DOI: 10.11835/j.issn.1000-582X.2000.06.012

[Abstract](672) [HTML](0) [PDF 212.53 K](203)

Abstract:
The mechanical model of spherical node of coal pipelines of blast furnace is built. Its boundary conditions and loads are presented. Its finite element analyses are used for this structure. Its stress distributing rules are obtained and the security of this structure is evaluated.

11 Effect of the Circulate Loading on the Deformation of Sanjome Andesite

XU Jiang , Seisuke OKUBO , XIAN Xue fu

2000, 23(6):38-41. DOI: 10.11835/j.issn.1000-582X.2000.06.013

[Abstract](774) [HTML](0) [PDF 318.12 K](236)

Abstract:
By the experimental study about the effect of a circulate loading on the deformation and the Young's model of Sanjome andesite at the distinct strain rate in a low stress state, the viscoelasticity of Sanjome andesite in a low stress state is researched by means of the effect of the circulate loading on the deformation of rocks. It is found that the natural material such as rocks has obvious viscoelasticity, and the mechanical property of rocks has a direct bearing on the size, direction and loading rate, but also on the way of loading and the organization attribute of rocks.

12 Exploration on the Principle of ECMB

XU Long jun , LIU Cheng lun , XIAN Xue fu

2000, 23(6):42-44. DOI: 10.11835/j.issn.1000-582X.2000.06.014

[Abstract](657) [HTML](0) [PDF 233.47 K](156)

Abstract:
ECMB, which is developed by Amoco company in USA, has very prospective. On the basis of the study on adsorption characteristics of mixture gas in coal, the principle of ECMB has been explored. The order of adsorption capacities of coal for several gases is: CO 2>CH 4>N 2>H 2 when coal adsorbs gas. In 2 member mixture gases, adsorption capacities of coal for mixed gases, methane and carbon dioxide tally with Langmuir equation, but not does for nitrogen and hydrogen. The substance of the increasing drawing ratio of coal seam gas by using ECBM is decreasing adsorption amount of methane in coal by emptying the other gas or gases into coal seam. N 2 is better gas than CO 2 in the process of using ECMB.

13 The Experiment of Prevention Accumulated Methane by Means of Abnormal Y Pattern Ventilation Method

YU Hai long , XIAN Xue fu , YING Guang zhi

2000, 23(6):45-48. DOI: 10.11835/j.issn.1000-582X.2000.06.015

[Abstract](685) [HTML](0) [PDF 267.50 K](184)

Abstract:
In this paper, according to the experiment of abnormal Y pattern ventilation method in Coal Face 22160, Mine 10, Pingdingshan Coal Group Ltd. Co. , it is discussed that the effect of ventilation method on fugitive air and gas emission. It is discovered that Y pattern ventilation method can not only decrease air break in mine goaf by means of declining intake air in drawing road, and alleviate gas emission in gob area, but also wash the accumulated methane in upper corner by means of fresh air in middle road, and reduce the gradient of gas concentration greatly in direction of dip in upper half part of mining face and the gas concentration in upper corner. That can effectively prevent gas accumulation in mechanized high gas faces and provide reliable guarantee for high production and high effectiveness in mechanized high gas faces.

14 Two-dimensional Vibration of a Pendulum Bob

XIANG Yu min

2000, 23(6):49-52. DOI: 10.11835/j.issn.1000-582X.2000.06.016

[Abstract](938) [HTML](0) [PDF 205.07 K](319)

Abstract:
对摆球的二维摆，利用球坐标下的运动积分，求得θ方向和φ方向的振动解，计算振动周期。讨论向一维摆动蜕化的两种典型特例：铅垂平面内的单摆及水平面上的圆锥摆。θ－φ面上的振动曲线有助于分析摆球在球面上的运动轨迹。

15 Artificial Neural Network Fault Diagnosis System Based on Rough Set Theory

SUN Ying-kai , ZHANG Bang li , CAO Long han , CAO Chang xiu

2000, 23(6):53. DOI: 10.11835/j.issn.1000-582X.2000.06.017

[Abstract](413) [HTML](0) [PDF 280.75 K](992)

Abstract:
On the basis of fault diagnosis neural network model, in this paper, knowledge representation system of rough set theory is taken as a major tool to delaminate the complex neural network and in which unnecessary properties are eliminated. This method overcomes some shortcomings, such as network scale is too large and the rate of classification is slow. The good effect that reduces the matching quantity of pattern search in classification course is gotten. The structure and algorithm of layered-mining neural network model based on rough set theory are also given. The example shows that this system has higher reference value in practical application.

16 The Knowledge Representation of the Prediction and Diagnosis of Tomato Disease

CHAI Yi , HUANG Xi yue , HE Li qing , TU Yun hua

2000, 23(6):56-58. DOI: 10.11835/j.issn.1000-582X.2000.06.018

[Abstract](668) [HTML](0) [PDF 235.83 K](1150)

Abstract:
On the basis of the character and feature interpretation of tomato disease,the prognosticate, prediction and diagnosis of tomato are researched. Thus,it may be widely applied in the developing research of the expert system about the prognosticate,prediction and diagnosis of tomato desease.

17 Structure and Integration on Intelligent Building System

YANG Zi , GUO Bing , LI Xiao lin , PEI Yu lin

2000, 23(6):59-63. DOI: 10.11835/j.issn.1000-582X.2000.06.019

[Abstract](862) [HTML](0) [PDF 475.65 K](1434)

Abstract:
Aimed at the properties of multi technology synthesis integration of intelligent Building, discussed in the paper. It mainly consists of BAS, CAS and OAS. The Building environment and technological principle is also mentioned in this paper. The intelligent Building is a complicated system engineering. It should pay more attention that the key point is system integration in the programming, design and practical realization.

18 Development of Management System for Network Matriculation

YANG Bo , YE Jun yong , PENG Jian , WANG Tong qing

2000, 23(6):64-66. DOI: 10.11835/j.issn.1000-582X.2000.06.020

[Abstract](782) [HTML](0) [PDF 222.35 K](1443)

Abstract:
The management system is designed for network matriculation,which achieves data collection and electro files making.As for aspect of the hardware, a general scanner is applied. Meanwhile, as for aspect of the software, the general recognition is completed under the condition of OCR and OMR existed in the same system and the image is also saved. We applied distributed processing in the system, which possesses the characters of faster recognizing speed, higher accuracy and better generality compared to the similar system.

19 On the Research of the Periodicity and Statistical Characteristics by Linear Congruence and Combined Generator

ZHOU Yan

2000, 23(6):67-70. DOI: 10.11835/j.issn.1000-582X.2000.06.021

[Abstract](765) [HTML](0) [PDF 233.19 K](2031)

Abstract:
In this paper the author researches the periodicity and statistical characteristics produced by linear congruence and combined generator through numerical value tests, and puts forward a random numeral generator with a long periodicity, a good independence and homogeneity.

20 Technology of Developing CAI Courseware Based on Web

ZHOU Xing , WU Ze hui

2000, 23(6):71-74. DOI: 10.11835/j.issn.1000-582X.2000.06.022

[Abstract](608) [HTML](0) [PDF 315.42 K](1243)

Abstract:
This paper introduces specificities of CAI courseware based on network,the configuration and connection of courseware server, compares several technologies to develop CAI courseware based on network, discusses technical key points to develop courseware based on campus network.

21 The Research of HAND-CNC Lathe Numerical Control System Based on Industrial Personal Computer

TU Yun hua , HUANG Xi yue , CHAI Yi , MA Xiao xiao

2000, 23(6):75-78. DOI: 10.11835/j.issn.1000-582X.2000.06.023

[Abstract](584) [HTML](0) [PDF 303.40 K](1595)

Abstract:
对基于ＰＣ机平台的ＨＡＮＤ－ＣＮＣ（人机集成型）车床数控系统软件的结构、软件模块等进行了介绍，主要在人机集成的概念、快速自动跨象限圆弧插补原理、步进电机／升降频控制等关键技术进行了阐述。该新型车床数控软件，在人与数控车床之间建立起了一种新的人机关系－“伙伴式”合作关系，使人的才能与设备的性能得以充分发挥，显著地提高了系统的性价比。具有广泛的应用价值。

22 An Experimental Device of Culture Cells Which Are Stretched Mechanically

LU Xiao , WANG Hong bing , SHENG Wei dong , HUANG Qi ping , WANG Yuan liang

2000, 23(6):79-81. DOI: 10.11835/j.issn.1000-582X.2000.06.024

[Abstract](559) [HTML](0) [PDF 257.25 K](1486)

Abstract:
为研究离体培养细胞在应变作用时的生长行为，研制了可模拟生物软组织细胞在生理或病理应变情况的离体加载装置。本装置的方法是将细胞培养于弹性硅橡胶薄膜（厚度０.2mm）的上表面，弹性膜固定于压力腔的上方，在电路控制上蠕动泵使压力腔的压力产生周期性变化，弹性膜在此压力作用下发生周期性的。弹性膜的周期将牵动粘附于其上表面的细胞产生周期性伸张，从而实现对细胞施加周期拉伸变形的作用。装置中弹性膜周期伸长的应变峰值和周期分别在０.007-0.0３和０.０６－０.１１８Ｈz范围内可调。本装置对研究细胞的应力－生长关系十分有用。

23 Theoretical Analysis on 13-Bit Lattice Gas Automata Model with Poly-velocity and its Simulation

ZHENG Zhong , GAO Xiao qiang

2000, 23(6):82-86. DOI: 10.11835/j.issn.1000-582X.2000.06.025

[Abstract](1022) [HTML](0) [PDF 301.89 K](1607)

Abstract:
An 13 bit lattice gas automata model has been investigated from fluid discrete dynamics. By gaining the moment equations from lattice Boltzmann equation and using Chapman Enskog expansion, the fluid dynamics equation and energy equation of 13 bit lattice gas automata model with polyvelocity have been deduced. The validity of the model using for non isothermal fluid dynamics has been proved . Finally, simulation results for non isothermal flow pass plate have been shown

24 Analysis of Elastic Deformation of Rollers System in Rolling Mill Based on Influential Function and Prediction of Plate Shape

LIU Xue feng , WANG Ling yun

2000, 23(6):87-90. DOI: 10.11835/j.issn.1000-582X.2000.06.026

[Abstract](860) [HTML](0) [PDF 211.41 K](1163)

Abstract:
Roll elastic deformation must be considered when plate rolling mill is designed and rebuilt and plate shape is controlled and improved. By using influential function method and computational formulas that are given, the roll deformation in some 1850 rolling mill is analyzed, and the results are used to predict the transverse thickness difference of plate. The results of prediction show that the method is correct.

25 The Harmonic Injection Method for Single-Switch Three-Phase Power Factor Correction Circuits

YU Xiang xu , HOU Zhen cheng , YE Yi lin

2000, 23(6):91-94. DOI: 10.11835/j.issn.1000-582X.2000.06.027

[Abstract](586) [HTML](0) [PDF 250.50 K](226)

Abstract:
被研究电路简单而实用，工作于固定占空比就能实现功率因数校正，不过这种情况下，输入电流含较多的５、７和１１次谐波。往占空比注入６倍次谐波，能显著减小谐波，但确定各谐波的注入量是个难点。采用多种算法（含遗传算法）对皮注入系数进行了优化。经过对比可知：最简单迅速的方法是一维搜索；各次谐波的注入系数和输入电压幅值有关，只注入６次谐波效果还不够理想；此外，所给优化结果是这种电路所能达到的最佳效果。

26 Three-phase Four-wire Shunt Active Power Filter

ZHOU Lin , QIN Mei , YI Qiang , YE Yi-lin

2000, 23(6):95-99. DOI: 10.11835/j.issn.1000-582X.2000.06.028

[Abstract](650) [HTML](0) [PDF 271.58 K](334)

Abstract:
大量关于有源电力滤波器的研究仅限于三相三线制系统，而没有考虑三相四线制系统。针对不对称三相四线制系统中零序电流的补偿，提出采用三相四线制并联有原电力滤器来滤除其中的零序电流。详细阐述了这种三相四线制并联有源电力滤波器的主电路结构、工作原理、数学模型和检测方法，并提出了一种不经过坐标变换的滞环控制。仿真结果表明这种有源电力滤波器能有效滤除三相四线制系统中的基波零序、基波负序和谐波等有害电流。

27 X-Ray Computer Tomography on Residual Stress Measurement

CHEN Yu an , ZHOU Shang qi

2000, 23(6):100-103. DOI: 10.11835/j.issn.1000-582X.2000.06.029

[Abstract](821) [HTML](0) [PDF 298.44 K](217)

Abstract:
X ray computer tomography for the measurement of triaxial stresses within a low atomic order material is presented to aim at the shortcoming of conventional X ray stress analysis and AST2001 X ray stress analyzer of USA. The device for X ray computer tomography of residual stresses and the measurement theory is discussed. The computer procedure for the measurement of X ray computer tomography is designed. With the diffraction data provided, complete triaxial stresses of an arbitrary point on the surface of and within material investigated can be evaluated. The stress tensors, stress gradients and stress free lattice spacing of material investigated can also be calculated. And a self control mechanism for measurement and evaluation is presented.

28 Analysis on Effect Factors of 20MnSi Steel Bar Quality

LI Yu-tian

2000, 23(6):104-106. DOI: 10.11835/j.issn.1000-582X.2000.06.030

[Abstract](474) [HTML](0) [PDF 221.31 K](271)

Abstract:
针对济钢２０MnSi棒材曾出现断裂现象，从微观组织、化学成分、出钢湿度以及终钢温度等方面进行了探讨。认为钢坯中元素含量与均匀程度是影响棒材质量的重要因素，并提出２０MnSi钢中，Ｃ含量最好控制在0.18-0.24%,Mn含量控制在１.2%-1.6%,Mn/Si比值控制在３.0左右，Ｓ含量控制在０.025%以上；加热炉温度可控制在ＡＣ３线以上３０－５０℃，固相线ＮＳＥ以上１００－１５０℃之间；加热时间宜控制在８０－１００min；终轧温度在ＡＣ３线以上５０－１００℃。

29 Numerical Simulation and Analysis of Control Rod Dropping of Qingshan 300 MW Nuclear Reaction

ZHAO Liang-ju , PENG Yun-kang , ZENG Dan-ling

2000, 23(6):107-109120. DOI: 10.11835/j.issn.1000-582X.2000.06.031

[Abstract](467) [HTML](0) [PDF 256.73 K](224)

Abstract:
This paper provides a theoretic basis to analyze the mechanism of control rod dropping and a solution method to solve the process of dropping. The authors analyze the effect of different forces acting on the control rod in detail. A mathematical model is built and a program is written to solve the process of downward motion. Finally, the model and relative coefficients of the model are modified according to the experimental data. The modified model can well simulate the process of dropping of the control rod, which gives a powerful proof to the accuracy of the model.

30 The Characteristics of the Components and Pyrolysis of MSW in Chongqing

RAN Jing yu , ZHANG Li , QU Chao shu , ZHANG Yun , XIONG Ke jia

2000, 23(6):110-113. DOI: 10.11835/j.issn.1000-582X.2000.06.032

[Abstract](688) [HTML](0) [PDF 289.82 K](223)

Abstract:
It is shown from the investigation for the characteristics of the physics & the thermal treatment process about MSW in Chongqing:The complex components exist in MSW. The MSW have the characteristics, such as higher water, ash and lower heat value. And the bubbing temperature zone about the volatility of the organic matter is obviously but the others are not. The optimum relationship exists among the temperature, the size and the staying time of the MSW. The furnace temperature and constructure play very important roles for the clean combustion of the MSW.

31 Descending Dimension Algorithm for Convex Nonlinear Programming Problem with Equality Constraints

FENG Qi-shan , CHEN Rong , TONG Dong-fu

2000, 23(6):114-116. DOI: 10.11835/j.issn.1000-582X.2000.06.033

[Abstract](555) [HTML](0) [PDF 157.46 K](163)

Abstract:
This paper deals with the nonlinear system of equations algorithm for convex nonlinear programming problems with equality constraints.We use the optimatily conditions for programming problem with equality constraints and then estabish a nonlinear system of equations.Finally we solve these to get optimal solution of nonlinear programming problems.

32 Research on Shoelast CAD/CAM Technology

GAO Chao , GUO Yong cai , HU Xue dong , GUO Xiao en

2000, 23(6):117-120. DOI: 10.11835/j.issn.1000-582X.2000.06.034

[Abstract](1004) [HTML](0) [PDF 274.44 K](192)

Abstract:
A shoelast CAD/CAM system designed by authors is described,which consists of a shoelast opto electronic measurement device,a shoeinner shape detect,number controlled machine and system software.The system's function is introduced in detail.A math model of complicated shoelast surface is given.The whole system is fulfilled with MFC programming technology in Visual C++ under Windows'95 environment.Finally,a novel compact system with measure,design and machining is successfully accomplished.

33 Application of Components Geographic Information System

SONG Yang , LI Jian wei , ZENG Hang , ZHONG Jian

2000, 23(6):121-123. DOI: 10.11835/j.issn.1000-582X.2000.06.035

[Abstract](760) [HTML](0) [PDF 253.97 K](188)

Abstract:
Com GIS is a new gerneration GIS system.This article demonstrates the basic concepts and the technical features of Com GIS,and discussions on the secondary application developments of Com GIS system for the Geomedia platform are given as an example.

34 Study on Central Pre-treatment of High Content Organic Chemical Acid Wastewater

HUANG Xiu shan , YU Zhong xue

2000, 23(6):124-125137. DOI: 10.11835/j.issn.1000-582X.2000.06.036

[Abstract](856) [HTML](0) [PDF 203.22 K](159)

Abstract:
Wastewater from some chemical plant is of high content ,chroma and acid. On the base of these characters, "micro electrochemical reduction coagulation" process was opted to pretreat it and better efficiency was obtained. Running results indicated that the removal rates of COD and chroma were above 70% and 80% respectively on the best influent condition of pH=6,iron:carbon=2:3,the input rate=60% and micro electrochemical reduction coagulation was used as 1.5%.

35 Framework of M-channel Systems and the Best Symmetric Extension

GONG Qu , CAO Chang xiu , GONG Jian

2000, 23(6):126-130. DOI: 10.11835/j.issn.1000-582X.2000.06.037

[Abstract](817) [HTML](0) [PDF 272.14 K](1259)

Abstract:
In image compression based on wavelet transform, the borders of images have to be processed in advance so as to reduce the distortions around the borders. An efficient way for this problem is symmetric extension. There are different types of symmetric extension methods. The paper presents the best symmetric extension and gives a design algorithm. Using the algorithm, we obtain the scheme of extending and windowing the signals in general best M-channel analysis/synthesis system.

36 Research on Electrochemically Controlled Release of Antineoplastic Agent Ftorafur

SHAO Fang , LI Ming chun , CHEN Chang guo

2000, 23(6):135-137. DOI: 10.11835/j.issn.1000-582X.2000.06.039

[Abstract](850) [HTML](0) [PDF 200.09 K](1215)

Abstract:
The electrochemically controlled release of Ftorafur(FT 207) from the polypyrrole film on platinum electrode is studied.The result shows that the binding and release of FT 207 depends on the electrochemical redox process of the PPy film.The release amount of FT 207,which can reach 10 -5 mol/L,is proportional to the cathodic charge and thickness of the PPy film.

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