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Bimonthly,Started in December 1984 Pesponsible institution:Department of Education of Guangdong Province Sponsor:Guangdong University of Technology Edited,Published,Distributed:Center of GDUT of GDUT Journal,Periodical Center of GDUT

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For the maintenance of academic integrity and ethics, all members of Journal of Guangdong University of Technology (editors, evaluation experts, and authors) must abide by the basic principles of this journal. This editorship strictly implements the peer review system, reviewing all contributions by going through a three-tier review precedure, namely, the editors' initial review, expert evaluation, and then the final review of deputy editors and editors-in-chief, guaranteeing and improving the quality of all the articles. This journal formulates this statement based on the guiding principles and criteria issued by the Committee of the Publication Ethics (COPE).

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Study on Modification and Properties of Sodium Polyacrlate Super Absorbent Polymer

ZHANG Wei-gang1,CUI Ying-de2,FANG Yan-xiong3,ZHANG Xiao-hong3

Journal of Guangdong University of Technology. 2007, 24 (2): 1-4.

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Using montmorillonite modified organically as host and acrylic acid as guest,the super absorbent polymers of PAA∕MMT are prepared by inverse suspension polymerization and compared with pure PAA samples.XRD and IR studies show that the interlayer distance of the MMT fully dispersed in polymer is over 4.66 nm and the PAA∕MMT SAP are nanocomposites.For PAA∕MMT SAP with 10% clay,the gel strength is 3.6 times as high as that of the pure PAA samples.The important properties of the absorption speed and...

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An Optimizing Study on Effect of a New Kind Packed Material Structure on Regeneration Performance

CHEN Ying1,ZHANG Yong-quan1,SHI Bao-xin1,SHI Yong-kang2

Journal of Guangdong University of Technology. 2007, 24 (2): 5-7.

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A set of experiments are carried out in a new kind of packed material,honeycomb paper,to investigate its regeneration performance varying with air flow and height of the honeycomb paper when the inlet air states,solution concentration and flow rate are fixed.The result and analysis are presented,and the optimal heights of honeycomb paper in different velocity of air inlet are also presented in this paper.

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Preparation of Ultrafine Powder CeO2 Using Electrochemical Method

LIAO Wen-bo,PAN Zhan-chang,YE Jing-quan,LIN Liang-sheng,XIAO Chu-ming,ZHANG Huan-hua

Journal of Guangdong University of Technology. 2007, 24 (2): 8-10.

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Cerium dioxide ultrafine powder is prepared by electrochemical method using composite coating of In-Ru-Ir as anode,cerous nitrate and ammonium nitrate as electrolyte.The powder is analyzed by using XRD and TEM.The technique condition of preparation is optimized by orthogonal design.The kinetics of electrode process is studied.

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Study of Photo-catalytic Degradation of Cationic Brilliant Red 5GN Solution by TiO₂/Coke

L Song1,SUN Ying-jie2,YUAN Bin1,LIANG Kang-yu1

Journal of Guangdong University of Technology. 2007, 24 (2): 11-14.

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It is studied that the degradation of cationic brilliant red 5GN solution with immobiled TiO2 photo-catalyst prepared by binding method that nanosized TiO2 is adsorbed to coke by sodium silicate,using ultraviolet lamp or sunlight as light sources.The results show that the 5GN solution has marked degradation under experimental conditions of immobilized TiO2 of 3 g/L and 10% H2O2 of 0.1 mL.The concentration reducing content of cationic brilliant red 5GN with the concentration of 20 mg/L is more th...

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Removing Ammonia Nitrogen from Wastewater by Immobilization Nitrobacteria with Chitosan and Alginate

QI Su-fang1,YU Yu-mian2,LAI Zi-ni3,GAO Peng4

Journal of Guangdong University of Technology. 2007, 24 (2): 15-19.

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This paper is to find out the best condition of the immobilized microbial beads to treat NH+4-N in fishery wastewater,which is made from entrapping nitrobacteria with chitosan and alginate as entrapment carriers.The experiment results show that when the chitosan mass percent is 1.5%～1.7%,alginate mass percent 3%,CaCl2 mass percent 4.6%～5%,glutaradehyde mass percent 1.1%～1.3%,nitrobacteria 5～5.3 mL,the NH+4-N removal efficiency of fishery wastewater is above 94%.

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Neural Network for a Kind of General Linear Complementarity Problem

MO Hao-yi

Journal of Guangdong University of Technology. 2007, 24 (2): 20-23.

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A nongradient neural network is presented for solving a kind of the general linear complementarity problem.With the Lyapunov theorem and LaSalle invariant set principle,the network is proved to be Lyapunov stable and globally convergent to an exact solution of the problem when the matrix M is positive semidefinite.The network can be used to solve the linear complementarity prlblem,and it is simpler than the existing network.Moreover,it includes the network of quadratic optimization problem.Feasi...

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Topological Sequence Entropy of Some Compact Systems and Generalized Specification Property

HU Chao-jie,MA Dong-kui

Journal of Guangdong University of Technology. 2007, 24 (2): 24-26.

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This paper studies continuous onto map of a compact metric space and topological sequence entroy property of the shift map in the inverse limit space and generalized specification property of the shift map in the inverse limit space.

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Exact Solutions for Wick-type Stochastic Generalized kdv Equation

HUANG Wei-xiang,SONG Xian-fa

Journal of Guangdong University of Technology. 2007, 24 (2): 27-32.

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In the paper,by using Hermite tranformation,Wicktype stochastic generalized kdv equation is reduce to stochastic coefficient equation,then some stochastic exact solutions are obtained via generalized expansion method and Hermite inverse transformation.

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Design of the Illumination System for Laser Projection Lithography

LIN Qing-hua,LI Wen-jing,SONG Chao,WANG Lu-bin

Journal of Guangdong University of Technology. 2007, 24 (2): 33-35.

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For the laser projection lithography system used for the production of large-area,high processing throughput,and cost-effective printed circuit boards(PCB),its illumination system is simulation-designed and optimized using ZEMAX optical design software,and the optimized results are analyzed.The designed results,including uniform of image plane,size and shape of beam geometry,aberration as well as matching of illumination system with projection lens,fulfill the demands of laser illumination syste...

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Application Research of Bus Charging Protection Based on Fuzzy Hyperbox Classifier

LEI Yu,CHEN Shao-hua,GUI Cun-bing,MA Bi-yan

Journal of Guangdong University of Technology. 2007, 24 (2): 36-39.

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At present the bus charging protections have some disadvantages and shortcomings.Analyzing the mechanism and processes of bus charging and making full use of the differences of characteristics variables’ value between normal bus charging and fault element charging,a new protective method is presented in this paper to distinguish normal bus charging from fault element charging based on the fuzzy hyperbox classifier.EMTP program is used to obtain plenty of training and testing patterns.The results...

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The Intelligent Monitor System of Motors Based on Distributed Network

DU Yu-xiao1,PENG Guo-jun2

Journal of Guangdong University of Technology. 2007, 24 (2): 40-43.

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To diagnose the motor faults and monitor the multimotors parameters on-line,this thesis proposes the intelligent monitor system of distributed network for motors,which realizes the collection and management of real-time data,practical status identification and intelligent fault diagnosis,with the low-level intelligent monitoring module,fuzzy expert technique and neural network and expert system,respectively.Thus,it will provide an efficient industrial method with!distributed information monitor,...

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Study on the Simulation Platform of Control System Based on PLC

GAO Jun-li,XUAN Jian-lin,DENG Ze-ming

Journal of Guangdong University of Technology. 2007, 24 (2): 44-46.

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Based on personal computer environment,this paper constructs a simulation platform of parallel elevator control system using the development tool GX Developer of programmable logic controller(PLC) and developer tool GT Designer of touch panel.The platform can realize the software simulation of the control system of the parallel elevator.It can verify the development process and running process of the control program,so this platform has the engineering application value.

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The Research and Application of Data Fitting in the Test of Gas Permeability of Film Material

PANG Ran,WANG Ren-huang,GONG Xiong-wen,TAN Yi

Journal of Guangdong University of Technology. 2007, 24 (2): 47-50.

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With the rapid growth of application of film material in packing industry,the study on gas permeable ability in different kinds of condition is effectively pushed.In order to figure out the performance of gas permeability in nonstandard temperature,this paper introduces a new method of data fitting.It is based on least-square principle and matlab and visual c++ is used to mix programming,so that it can make good use of the two tools.The data fitting platform can perform widely,and it brings a va...

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Numerical Simulation of the Effects of Buildings on Pollutant Dispersion from a Nearby Source

WANG Xin

Journal of Guangdong University of Technology. 2007, 24 (2): 51-55.

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Using three turbulence models,i.e.the standard kε model,Shear stress transport model(SST) and SSG Reynolds-stress model,and pollutant transport equation,a numerical simulation for the dispersion of a plume around an isolated building is conducted.In comparison with results from wind-tunnel experiments,the computational results are analyzed and evaluated.The results demonstrate that all the three turbulence models can reasonably reproduce the concentration distribution in the near wake.Quantitati...

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Structure Analysis for Frame Arch Bridge with Slant Leg Before and after Strengthening

TAN De-pan1,JIANG Hai-bo1,HE Bo-qing2,L Yan2

Journal of Guangdong University of Technology. 2007, 24 (2): 56-59.

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This article presents the deteriorations of the concrete frame arch bridge with slant leg.The model for structural analysis is built by using a bridge analytical software.The lower security position is located by structural analysis.The reinforcement methods of humid-plastering steel plates and ordinary-plastering steel plates are proposed for different positions.The reinforcement design is proved feasible and reasonable by rechecking calculations.

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Critical Strain of Carbon Nanotube by Structural Mechanics Approach

TANG Wen-yan,YUAN Qing-ke

Journal of Guangdong University of Technology. 2007, 24 (2): 60-63.

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The paper investigates buckling deformation of armchair and zigzag nanotubes with different length-radius ratio(H/R).The results show that the critical strain decreases as the radius increases with certain length-radius ratio nanotubes;length-radius ratio has important effect on the critical strain;for small length-radius ratio,the continuum shell theory is valid,but as length-radius ratio increases and at the radius of less than 0.8 nm,the divergence appears.So macroscopic mechanics frame model...

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Structure Design Analysis for Transition Section of Highway and Bridge

LUO Zhi-qiang

Journal of Guangdong University of Technology. 2007, 24 (2): 64-68.

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Combined with the problems of the ununiform settlements met in the subgrade and pavement in transition section of the highway and bridge,it is analyzed and presented that structure design must secure the foundation conditions and subgrade conditions in transition section of the highway and bridge.The study of the soft soil base treatment at the bridge abutment must be strengthened and the suitable stability and settlement measures of the bridge abutment and bridge head must be chosen.

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The Analysis of Artificial Control Reliability in Constructing

DENG Tie-jun1,DAI Hua1,KUANG Jian2

Journal of Guangdong University of Technology. 2007, 24 (2): 69-71.

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According to the concept of reliability in construction and constructing an analytic model of artificial control reliability in construction and using level analytic method principle,the appraisal analysis method of artificial control reliability in construction is proposed.

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The Design of Industrial Air Ventilation and Conditioning in High-spacious Workshops

HE Biao

Journal of Guangdong University of Technology. 2007, 24 (2): 72-75.

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This article is about the design of industrial air ventilation and conditioning in high-spacious workshops.It has introduced the air distribution of nozzle parallel jet which is used in stratified air conditioning design and the designing concept of working area air conditioning.In the high-spacious workshops,the industrial equipment generates a lot of heat and dust.In order to make sure of the workmen being healthy in such working environment,this design not only uses the designing concept stat...

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Blind Nonlinear System Identification Based on LS-SVM

ZHU Yan-fei1,TAN Hong-zhou2,ZHANG Yun1

Journal of Guangdong University of Technology. 2007, 24 (2): 76-79.

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To solve the nonlinear problems in blind system identification,a novel blind nonlinear system identification approach based on Least-Square Support Vector Machines(LS-SVM) is investigated in this paper.By oversampling the system outputs,more information of the system characteristics can be observed to blindly identify nonlinear systems.The LS-SVM based mathematical approximation provides an adequate modeling of the unknown system given the distribution knowledge of the system inputs.The paper de...

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The Expanded Turn-to-the-left-most Rule and the Application in Profile Search

LI Jin-fang,HE Han-wu,YANG Xue-rong,SUN Jian

Journal of Guangdong University of Technology. 2007, 24 (2): 80-83.

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An approach is presented to search profile in engineering drawing based on the turn-to-the-left-most rule.It is called expanded turn-to-the-left-most rule.A term named guiding-line is brought forward for the expanded rule.It could solve the incompletion in searching profile by the quondam rule.Owing to the guide-lines,all the profiles could be found,including those which couldn’t be found through the turn-to-the-left-most rule using the same first profile line.An instance is given to compare the...

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An Improved Vehicle Image Edge Detection Based on Morphology Gradient

LIU Li-cheng

Journal of Guangdong University of Technology. 2007, 24 (2): 84-86.

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On the analysis and comparison of the multi-scale,multi-direction and multi-grade mathematical morphology gradient algorithm for the image edge detection,an improved vehicle image edge detection method based on the morphology gradient is given in this paper.Experiment results are obtained by applying the edge detector on a truck image,which prove to be more efficient than other existing morphology edge detectors.

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Motion Object Detection Method Based on the Characteristic Image

CAO Xiao-jun,PAN Bao-chang,ZHENG Sheng-lin,GAN Yan-fen

Journal of Guangdong University of Technology. 2007, 24 (2): 87-89.

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On the traditional foundation of characteristic image method,this paper proposes a kind of mobile examination algorithim based on the piecemeal edge characteristic image.This method carries on piecemeal processing to the background chart and the stacking chart,separately takes out their biggest characteristic vector,obtains each block projection coefficient,carries on the match examination of the mobile.In actual practice,the canny operator is used to obtain the edge detection so as to eliminate...

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Face Detection Based on Elimination of Background

ZHANG Chao-yang,PAN Bao-chang,ZHENG Sheng-lin,PENG Shao-hu

Journal of Guangdong University of Technology. 2007, 24 (2): 90-92.

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Because picture background has great influence on the people face detection,this article proposes a method of face detection by eliminating the background.It studies the skin color characteristics and the geometry characteristics of the picture regions,and carries on the classification according to the background regions geometry characteristics.Using the corresponding methods that are based on different geometry characteristics can effectively remove the background and realize the fast face det...

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Research of Retrieval Method on Encrypted Database

SONG Jun-hong,WANG Bing

Journal of Guangdong University of Technology. 2007, 24 (2): 93-95.

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Based on ciphertext index and aiming at practical application on encrypted database,the paper designs a new ciphertext index by combining binary tree ciphertext index with B+ tree index.Meanwhile,it also introduces query method and analyzes its query efficiency and security performance.

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The Network Communication of the Embedded Visual Online Inspection Based on Winsock Control

HE Shu-xian1,ZHU Zheng-tao1,LI Wen-rui2,ZHANG Gang1

Journal of Guangdong University of Technology. 2007, 24 (2): 96-98.

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In view of the online detecting function of DVT embedded visual intelligent sensor and to realize realtime output result and information feedback in user terminal,this paper researches the technology of reading out the detected date on Ethernet from DVT embedded visual intelligent sensor.The network communication based on Winsock control and TCP/IP protocol is researched with VC++6.0 software package.The experiment evidences that this technology can realize the realtime communication between dat...

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Risk Analysis of Insurance Business Based on SPRINT Classification Algorithm

BIN Ning

Journal of Guangdong University of Technology. 2007, 24 (2): 99-102.

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Risk evaluation is very important to insurance company.This paper presents an insurance business risk analysis method based on SPRINT classification algorithm.Aiming at the medical insurance instance,it introduces the implementation of SPRINT in details,and then mines some rules which could be utilized in the field of insurance.

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Blind Signal Separation Algorithm Based on Quasi-Newton

JIAN Ke,LIU Hai-lin

Journal of Guangdong University of Technology. 2007, 24 (2): 103-106.

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This paper proposes a new blind signal separation algorithm which uses joint diagonalization of correlation matrices as the cost function,and separates source signal based on quasi-Newton’s DFP method.The algorithm improves the convergence rate.Validity and performance of the proposed algorithm are demonstrated by extensive computer simulations.

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The Fast Dynamic Algorithm of the Cost of Construction Based on Fuzzy Mathematics

YU Jing1,2,LIU Jian-min1,ZHANG He3

Journal of Guangdong University of Technology. 2007, 24 (2): 107-110.

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Based on the method of fuzzy mathematics,the similarity of the projects completely built and to be built is studied,and eight factors affecting the cost of the project have been proposed.All the eigenfunctions and the approaches of the project completely built are calculated in this paper.According to the fabrication cost of the project being built,the fabrication cost of the project to be built can be determined accurately and rapidly.

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