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Table of Content

    12 February 2010, Volume 1 Issue 02
    网络与通信
    <SPAN lang=EN-US style=
    HUANG Jianqiang;HU Xiaoqin;LI Tao;TIAN Shiyuan
    2010, 1(02):  1-4.  doi:
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    This paper presents a fast file backup method used in the environment of lowbandwidth Internet uses a new method to manage checksum data in differential backup. This method reduces data transfer between server and clients, can backup files fast in the environment of lowbandwidth Internet.
    WSRF:Bridge Connection Between Web Service and OGSA
    WANG Jun;SHAO Shilei;TAN Huifu;GUO Lemeng
    2010, 1(02):  5-7.  doi:
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    The typical Web Service is stateless, but the core grid architecture—OGSA which developed from Web Service requires stateful service. This paper analyses the stateless of Web Service and points out its limitation, then introduces the WSRF based on the limitation, educes the concept resource, explains the six composes of WSRF.
    Design and Realization of Network Teaching System Based on B/S Structure 
    ZHAO Xiaojun
    2010, 1(02):  8-10.  doi:
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    By analyzing the needs of different users, with the integrated use of the threetier B/S structure, HTML and ASP programming, SQL databases and IIS technology platform, a network teaching system that can satisfy the universities’ requirements is designed, which is open, interactive, flexible, versatile and so on.
    Research on Typhoon Comprehensive Forecast
    ZOU Yu;GUO Chaozhen
    2010, 1(02):  11-14.  doi:
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    This paper is based on typhoon comprehensive forecast. First, it analyzes the drawbacks of traditional typhoon forecast. Second, it makes some improvements according to these drawbacks: it puts forward a preference algorithm based on sequential evaluation and expert weight to collect the group’s opinions; it introduces a mobile expert based on J2ME, which allows the attendant to take part in the negotiation meeting without sitting in front of the computer; it introduces an objective forecast expert based on all kinds of objective forecast methods. At last, it brings forward the modified typhoon forecast GDSS process and implementes the prototype system.
    Design and Implementation of PPPoE Based on Netgraph Architecture
    CHEN Yanchen;LUO Lei
    2010, 1(02):  15-18.  doi:
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    PPPoE is the key protocol of dynamic IP access technology. A new implementation of PPPoE protocol is discussed, which is different from traditional implementation. First of all the architecture of netgraph is described. Then two main basic states of PPPoE are discussed, one is PPPoE Discovery State, the other is PPPoE Session State. In the end, an implementation of PPPoE based on netgraph architecture including the partition design of software module is introduced.
    Research on Node Location in Wireless Sensor Network
    TANG Lin;GAO Baocheng
    2010, 1(02):  19-21.  doi:
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    Wireless sensor networks have been widely applied to all areas of society. Node location is one of the key technologies in wireless sensor network. Using the strength of known emission signal, the receiver node calculates the loss in the dissemination process according to signal strength RSSI received, then transfers the loss to distance according to the theory or experience signal propagation model.RSSIbased location is a hot spot in nowadays because of its low hardware requirements. For resolving biggish error in RSSIbased location, the paper presents a new method of location using collation of RSSI (Received Signal Strength Indicator) for range measurement between nodes and choose some beacon nodes which can give smaller distance error in sensor network. Simulation results show that this algorithm has a better performance than classical RSSI algorithm.
    论文
    Rulebased Automatic Fault Diagnosis System for Communication Networks
    WANG Yingchun;WANG Yuanbo;WANG Ping;
    2010, 1(02):  22-25.  doi:
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    A typical communication network consists of several service networks. Network faults often lead alarm storms in the whole network. To locate and diagnose faults in a great lot of alarms, an automatic fault diagnosis system and rules maintenance platform is designed and implemented based on the rule engineer Drools. This system is applied in the integrated network management system for Shuohuang railway communication network. Practice results show that the diagnosis rate of this system on serious faults such as fiber cable breaks is more than 90%.
    网络与通信
    Transmission Method for Remote Backup System 
    TIAN Shiyuan;ZHAO Kui;LU Zhengtian;HUANG Jianqiang
    2010, 1(02):  26-29.  doi:
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    This paper presents a transmission method for remote backup system. The method relaxes the requirement of network with the technology of cache. And the method supports Internet. Besides, the method implements an effective transmission with the technology of control of consistency and the transmission of backup data. The result of experiment for this method is very good and feasible.
    信息安全
    Data Consistency Checking Method Based on Efficient Data of Logical Volume
    QI Jing;ZHAO Kui;LI Tao;HUANG Hua;WANG Zhe
    2010, 1(02):  30-33.  doi:
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    A method for data consistency checking based on efficient data of logical volume is presented, the operation of local data server can continue without interrupt thanks to the use of a realtime volume shadow copy for Windows, the remote backup server analyzes the bitmap of local data server to guarantee the accurate for reading data from backup storage pool. According to the result of experiment, this method for data consistency checking is effective.
    Research on Agent Security Communication Framework Based on XML
    DAI Shangfei;HAN Xiuling;XUE Yandong
    2010, 1(02):  34-38.  doi:
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    Security communication is the basis of Agent coordination in multiagent system. This paper analyzes the problem of traditional Agent communication system based on KQML and designes an Agent security communication framework based on XML. In this framework, the paper uses XML instead of KQML and applies XML encryption technology to improve the efficiency, expansibility and crossplatform of Agent communication.
    A Blind MPEG4 Video Watermarking Algorithm Based on  Errorcorrecting Bits in Discrete Cosine Translation Domain
    TAN Ping
    2010, 1(02):  39-42.  doi:
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    A bind MPEG4 video watermarking algorithm is proposed. A binary watermarking image transformed with Arnold scrambling is extended. The extended sequence is modulated with pseudo random sequence and then is embedded into the DCTCoefficients of the low and middle frequency in every video frame. Simultaneity, adjust these DCTCoefficients according as the watermark bits. Extract the watermarking with the scope of the remainder which these DCTCoefficients have been divided by the embedded strength. The algorithm is implemented simply. Experimental results demonstrate that the watermarking is invisible and robust to attacks such as JPEG, altering, salt & pepper noise and cropping.
    Watermarking Method Based on Frequency Modulation Differential Chaos Shift Keying
    CHEN Xuesong;GAO Chang
    2010, 1(02):  43-46.  doi:
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    This paper researches on the watermark encryption method based on the FMDCSK. A carrier signal of constant power is used. A chaos signal is converted into the wave of constant power with a chaotic phase. The error rate is reduced when extracting. Without the need to establish mechanisms for selfsynchronization of chaotic conditions, chaotic digital communications is implemented by the differential related technology, which is used to improve the coding of confidentiality, as well as to strengthen the antijamming ability of encode information. The experiment shows that the embedding watermark with this technology, the better confidentiality and immunity is implemented for the content of information.
    算法
    Several Optimization Algorithms of QoS Multicast Routing  Based on Multiobjective Genetic Algorithm
    LIU Wei;WANG Wei
    2010, 1(02):  47-51.  doi:
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    Multiobjective optimization algorithms of QoS multicast routing are proposed, and three methods are used in the process of evolution: the random weight approach creates weights randomly, makes the algorithm search in alterable directions, samplings uniformly along Paretooptimal Front, and increases the success rate. The Pareto ranking approach assigns the fitnesses in a reasonable way, makes the Pareto solution have same fitnesses, and can adjust the pressure of selection. The Pareto tournament approach maintains the diversity of the population by fitness sharing, and improves the performance of the genetic algorithm. The process of genetic evolution, success rate, speed of convergence and scalability of the algorithm are studied under different network size by simulations and compares with associated algorithms. A great deal of simulations result show that the algorithms proposed are feasible and effective.
    Study of Improvement of Blind Signal Separation Algorithm
    WANG Jiwei;GAO Baocheng
    2010, 1(02):  52-54.  doi:
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    The blind signal separation has gradually become important in signal processing, for it providing a better way to separate mixedsignals. In the blind signal separation, one of the mainstream methods is the independent component analysis, of which fast ICA is in wide use for its good separation effect and fast convergence. This paper describes the basic principles of blind signal separation, and details of the fast ICA algorithm. Also, it makes some improvements in allusion to the limitations of fast ICA, and achieves good results.
    A Modified Particle Swarm Optimization Algorithm
    HOU Zhenhua
    2010, 1(02):  55-57.  doi:
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    This paper introduces the principles and characteristics of Particle Swarm Optimization algorithm. Through the improvement of the selection of particles, inertia weight and local search, puts forward an improved particle swarm optimization algorithm. Combining with the inertia weight〖KG-*3〗, the study factor changed and in the local search using 0.618, the modified algorithm have a good performance in the optimal problems. At the same time, the value of best entropy based on PSO optimization algorithm is applied to image segmentation. It is a certain reference value for image segmentation field.
    Study on Method of CBR of Engineering Projects Based on GRA and GA
    ZHANG Wenling;JIANG Shaohua
    2010, 1(02):  58-62.  doi:
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    Similarity analysis of engineering project is the key to knowledge reusing and the most fundamental and crucial step in CBR of engineering projects application. However, many methods of analyzing the similarity of the projects are based on qualitative analysis, the effective quantitative method is scarce. In this paper, a quantitative similarity analysis method is presented by gray distance based on the concept degree of correlation of Gray Relational Analysis. First of all, the important attributes of the projects are extracted and the model of attributes is established. Then GA is used to determine the weight of the attributes. At last, the gray distance of the projects is calculated. The similarity degree of the engineering projects is ascertained according to the order of gray distance. The effectiveness of the method is verified by experiment result.
    Reasearch on Optimization of Multiqueue Multiserver Serving System to Arrangement Beds
    GUI Fengjuan;WANG Mingjun;YANG Lin
    2010, 1(02):  63-65.  doi:
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    The operations research principle of queuing theory is adopted to reasearch the queuing system of ophthalmonogy’s outpatient. This paper presents the best arrangement value of variety of ophthalmonogy’s hospital beds, and compares with the current hospital beds, proving scientific advices and a strong theoretical basis. It can be applied to other diseases departments’s hospital beds. The queuing theory applied to arrange hospital beds is a scientific and effective method.
    Improved Algorithm Based on SUSAN Corner Detection
    LIN Pengyue;LI Lingling;LI Cuihua
    2010, 1(02):  66-68.  doi:
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    The reason for the low speed of SUSAN algorithm in corner detection is analyzed, and an improved fast corner detection algorithm based on SUSAN algorithm is proposed. First of all, the algorithm compares the gray value of current point with the gray values of the points with a radius R around it, and counts the number of pixels with a nonsimilar gray value. The initial corner points are marked according to the criterion presented in the article. Then, a nonmaximal suppression function is used to choose the best corner. Experimental results show that the improved algorithm greatly reduces the computation of corner detection process, and makes efficiency improved.
    Traffic Signal Timing Optimizing Based on Realcoded Genetic Algorithm
    XU Xiao
    2010, 1(02):  69-72.  doi:
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    In view of the problem of traffic signal timing optimization, a modified nonlinear function model about signal timing is proposed; the weighted coefficient of performance indexs changing with traffic demand is designed; A realcoded genetic algorithm is used for optimizing signal timing.The results show that the algorithm is superior to the traditional method of Webster, decreases the vehicle total delay and increase the traffic capacity within the same signal time period. At the same time, the intersection service level is improved from level C to level A.
    Crowd Behavior Simulation Research Based on Genetic Algorithm  
    ZHOU Junxiang;CHEN Hongmei
    2010, 1(02):  73-76.  doi:
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    The simulation problem of crowd behavior is a multiple constraint,multiple objective combination optimization problems, this paper aimes at the characteristics of population density in public places, analyzes the characteristics of crowd behaviors, adoptes intelligence and parallelism of genetic algorithm’s basic theory, researches how to solve the problem of crowd behavior simulation. The genetic algorithm realizes rational and orderly arrangement of crows behaviors. And by experimental verifies that the behavior simulation problems in genetic algorithm to solve is simple, and can get global optimality, and can better to deal with the issue of crowd behavior simulation. 
    Research on Text Clustering Based on LSASOM
    WANG Jianfeng;MA Lina;LI Xinye;QIAO Dong
    2010, 1(02):  77-79.  doi:
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    A text clustering method based on LSASOM is proposed. The text eigenvector is represented by Latent Semantic
    Analysis (LSA), which embodies the semantic relation of the eigen words, and realizes the dimension reduction of the eigenvector.
    SOM network algorithm is used to nonsupervised selforganizing study, and the weight vectors of neural network are continuously
    adjusted in order to achieving the cluster targets. It requires no predefined number of clusters and can create a new species of text in
    any right position, and remedies the defect of traditional methods.
    Analysis and Improvement of Fluid Fronttracing Method Based on Grid
    XIE Anbing;WANG Jiwen
    2010, 1(02):  80-83.  doi:
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    For fluid movement, we need to solve the free surface which can be separated with their surrounding environment, many people carry out some studies on the interface tracking, and put forward many methods, which are mainly PIC method, MAC method and VOF method early. Level Set method is very effective for representing dynamic surfaces and is crucial to recent research within computer graphics. However, it smears out the sharp interface. Particle Level Set method is put forward base on the Level Set method, then places some particles near the surface, so it can remedy this default. The paper introduces these methods respectively,then puts forward some improvements and the application of these methods combined together.
    图像处理
    Realization of Free Viewer Roaming in Vega Scenery
    YANG Yang;LIU Zhiqin
    2010, 1(02):  84-87.  doi:
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    For better view effect in virtual roaming, this paper researches on motion models and viewer behaving principle of Vega. Via Vega API programming, a method to control roaming viewer using keyboard and mouse is designed, which extends motion models of Vega and provides richer motion states. Based on this method, a free viewer roaming is realized. It improves the effect of HumanComputer interaction, which is also flexible and easy to control.
    Research on Threedimensional Reconstruction Based on  Image Sequences with Monovideo
    ZHAO Wensheng;YIN Shengai
    2010, 1(02):  88-90.  doi:
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    With the rapid development of threedimensional computer technology and digital imaging software and hardware technology, the threedimensional surface reconstruction has got more and more peoples attention, and more and more widespread applications. Researchers have developed a laser stripe as the coding and other optical projection system. But these systems are very low in the surface reflection coefficient of regional or mirror reflection coefficient of the region which can not be very satisfied with the data collected for remote objects in accurate and difficult to calibrate the high environmental requirements, such as inadequate. So it is very significant to stand the point using of simple equipment such as a ordinary optical camera or a camera, in conditions of the background environment relatively simple and routine, use microcomputer to complete 3D surface reconstruction rapidly.
    Research on Accessorial Method of Measuring of Wound Length with Computer
    FU Wei;XIONG Ping;LIU Xiaojiang
    2010, 1(02):  91-93.  doi:
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    The paper introduces a new method about measuring the cut length basis on the traditional method in the legal medical expert length identify, sets forth the method about the half of the perimeter conversion to the length to identify. The half length of the perimeter has certain relation to measure of the area of the cicatrized cut and it can express the degree of the wounded truly, so as to adjudge fairly. Assistant identity to image by computer gaines very good effect.
    Extraction and Analysis of Texture of Side Surface for Fracture of Copper Wires
    LI Daxing;ZHU Zhengtao
    2010, 1(02):  94-96.  doi:
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    Texture is an important feature of fractures, different reason of rupture has different texture features, which contain lots information of directional distribution of image illumination. Image has a twodimension feature macroscopic, and can call the diversity of gray scale the thirddimension of an image. This thirddimension can be described by capacity of information. The methods of extraction and analysis of texture mainly include the following: statistical approach, lag correlation function approach, frequency spectrum, joint probability matrix and syntactic structures of texture. This paper mainly uses the frequency spectrum and gray symbiotic matrix to extract and analyze the features of texture of the four images of fracture of copper wires.
    软件工程
    Image Edge Detection Based on Wavelet Transform and Gray System Theory 
    ZHENG Zihua;CHEN Jiazhen;ZHONG Yuekang;PAN Rihong
    2010, 1(02):  97-100.  doi:
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    Multiscale edge synthesis is a difficult problem. Combining gray system theory with idea of multiscale edge detection, an adaptive scale edge detection algorithm based on gray system theory is presented. It chooses scales of quadratic spline wavelet filter adaptively by the width of image edge which is calculated by a new method based on gray correlation analysis and Gradient Direction. The simulations prove that in binary image cases, the algorithm is good at removing noise and remaining both dim edges and fine edges.
    应用与开发
    Promelabased UML Modeling Methods and Its Application 
    SHU Liangchun;RAO Jun;XIAO Meihua;YIN Chuanwen
    2010, 1(02):  101-104.  doi:
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    In terms of the advantages and disadvantages of the formalization methods and the visualization methods, this paper proposes modeling methods based on the two methods, which are reciprocal supplemented each other, it mainly focuses on how to use the formalization methods to verify the UML model, converts a UML model to a Promela specification, and then uses the famous model checking tool SPIN to verify it. And it is resulted to be available to verify the converting methods through an instance.
    Design of Embedded Construction Machinery Monitor Based on PXA270
    ZHANG Yanjin;ZHOU Huiling;LI Qingsong
    2010, 1(02):  105-108.  doi:
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    PXA270 is one of highperformance embedded systems based on the Intel XScale Micro architecture. The hardware design, driver design and the system transplantation of construction machinery monitor is proposed based on PXA270.
    est Procedures Analysis of Billingsettlement System Development 
    NIE Yanfeng;;SUN Fei;PENG Xiangjun
    2010, 1(02):  109-113.  doi:
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    Briefly introduces the characteristics of billingsettlement system development and compares the traditional model of software testing. Through the analysis of the test activity in key documents, the test case design, test efficiency and so on, demonstrates the test’s role in promoting the activity and support capabilities. Only the test constantly sums up experience in the longterm process of developing, and the use of testing activity tracking and feedback capabilities, can the specific type of largescale software system development process improve quality control capability and efficiency.
    Parallel Computing Environment Based on TSpaces 
    LI Xiaoqiang;LIN Lin;ZHANG Chao
    2010, 1(02):  114-117.  doi:
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    This paper first discusses the communication and synchronization mechanisms of TSpaces technology, builds an parallel computing model based on the TSpaces, and designs of parallel functions. The experimental results are given. The results show that the parallel computing environment is not only achieved the capabilities to meet user requirements, but also easy to use.
    A UPbased Integrated Approach to Workflow Modelling and Analysis
    YE Chuanxiu;ZHAO Meiyan
    2010, 1(02):  118-120.  doi:
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    Petri nets and the Unified Modeling Language are two very popular and powerful modeling tools in workflow modeling area. Petri nets are easy to describe and can run dynamically, but lack administrative levels; UML can describe the system in detail, but is not easy to quantify. It lacks effective and rigorous analytical tools and methods. In this paper, the benefits of two kinds of modeling methods are integrated, and a UPbased integrated modeling method is put forward which can effectively describe the system, realize the modularization of system and model reuse.By model simulation, its shortcomings and inadequacies are come to light.
    Campus Internet News System’s Design and Implementation
    PAN Yanhua
    2010, 1(02):  121-123.  doi:
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    With the development of information technology, Internet has become the important source from which people get information. In contrast with traditional media, Internet news system has advantagement in the fast speed of information release,much information, the flexibility of page design, no geographic and time boundaries etc. Taking a certain campus news system for example, this article introduces the design process of campus news website on the basis of B/S mode and video server framework.
    Researeh on Water Supply System Based on PLC Dual Closedloop Control 
    CAI Bin;;WU Lushen
    2010, 1(02):  124-126.  doi:
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    This paper designes a PLC as VF speed constant pressure water supply controller, a dual closedloop selftuning fuzzy PID control algorithm is used to pump motor speed and pressure of the pipe network set parameters to achieve constant pressure water supply. The realtime control system runs good performance, and energysaving effect is remarkable.
    Design and Implementation of Electronic Documents Management System  Based on Userdefined Structure
    SHI Junping;LI Biyun
    2010, 1(02):  127-129.  doi:
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    Electronic documents management system is designed and implemented based on analysis of documents management business of institutions. An solution of the electronic documents management system with userdefined structure is proposed, and gives a concrete realization based on C# language. System customization features allow users to tailor their own to develop in line with the needs of the user’s own electronic file structure, provides users with plentiful data entry and collection means. Not only the system can input media files, but also the user can input files for the past automatically converted database.
    Method and Implementation of Massive Data Export in Excel Format
    LIU Zhensheng
    2010, 1(02):  130-132.  doi:
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    During the process of software development, the author discoveres that when a massive amount of data is exported in Excel format by the software after a multicriteria query, the choice of the opensource component Biff8 can improve the efficency of data export while avoiding errors and shortmings of conventional export methods. This paper illustrates through an example by introducing the functional requirements of the data export module, its user interface requirements, and its coding implementation. 
    Design Based on Multidimensional Antenna Array
    XU Chunyan;HAN Li;JIANG Dawei
    2010, 1(02):  133-135.  doi:
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    This article introduces the multidimensional antenna array controlling system’s design based on ARM and the CPLD. This system uses the control style of serial communication. The connection control between the ARM embedded system and the CPLD replaces of the control between computer and CPLD, because the utilization of ARM intellectualizes the system and simplifies the program. The utilization of CPLD increases the pin numbers connected with the peripheral device. ARM possess of the performances of small volume, high integration, rapid operating speed, huge storage capacity and low power consumption. Meanwhile Arm saves the cost, reduces the volume and strengths the system stability. The fine effect is obtained through practical application.
    Research and Implementation of Picture Function in Equipment Management Software
    YANG Yang;GUO Fuliang
    2010, 1(02):  136-138.  doi:
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    Nowadays equipment management softwares are still on the word lay, picture description function has not added into these software. The paper can farther enhance efficiency of managing equipment by making the equipment management of intuitionistic and visual effect. On the basis of researching and analyzing the methods of picture store, the text designs and practices a picture module which is fit for equipment management. And the result of experiment shows that this work can advance the capability of equipment’s management.
    Design and Implementation of Read Operation in GCFS File System
    HE Xiaochuan;TIAN Hao;CAO Peifa
    2010, 1(02):  139-142.  doi:
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    This paper introduces the design and implementation of read operation in a cluster file system called GCFS. Then, the paper expatiates that the basic structure and the calling process. Finally, it gives the result of test about reading capability in the concrete condition. 
    tructure Random Fatigue Life Simulation Based on Power Spectral Density
    GU Chaolin;WANG Ke
    2010, 1(02):  143-146.  doi:
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    The MSC. softwares, such as MSC.Patran, MSC.Nastran, MSC.Fatigue are used in the strength and fatigue life analysis of a leaf spring structure of a certain device. The process simulation and realization of the process random vibration fatigue analysis are studied in detail:That is, first of all, calculating the frequency response of the structure to obtain the transfer function, then multipling this transfer function with the input of the power spectrum to obtain the power spectral density of stress of the leafspring, combing which with the material parameters, and selecting the appropriate damage model. So it is able to figure out the fatigue life of the leafspring structure through frequencydomain method.Comparing the simulation results with the experimental results of the real structure proves that the two results are in the same order of magnitude, so the accuracy and reliability of simulation results are reliable.
    Research and Design of USB Camera Driver Based on Windows CE
    DENG Yang;CHEN Quangen
    2010, 1(02):  147-151.  doi:
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    This paper introduces the design of USB camera driver under Windows CE 4.2, through analyzing USB bus, USB device driver model of WinCE and stream interface, the development process of USB camera driver is detailedly introduced based on ZStar USB Camera. Collection of USB camera data stream, decoding JPEG image, and display of bitmap are realized successfully. This method makes references for development of other USB device drivers. 
    Design of USB Host Controller Driver Based on OHCI
    TANG Yiling;CHEN Yi
    2010, 1(02):  152-154.  doi:
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    This paper develops the USB host controller driver based on S3C2410 processor. The driver follows USB 1.1 and OHCI 1.0 specification. It makes the embedded system with S3C2410 having USB host function and can connect USB mouse, keyboard, USB camera etc.
    Solution of Departing Data Compression Based on Spring AOP
    HU Liqiang;WANG Wei;ZHOU Dongchu
    2010, 1(02):  155-157.  doi:
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    This article introduces how to depart data compression from business by Spring AOP technology. And it is strong code reusable, readable, maintainable and can improve program quality. 
    Analysis of Linux Startup Process
    PANG Guoan;YUE Xishun
    2010, 1(02):  158-160.  doi:
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    With the rapid development of the IT industry, the embedded system has been more and more important, especially the Linux operating system which has got great recognition and comprehensive application. This paper analyzes the startup process of Linux operating system by VMware virtual PC, taking a fedora 8 and kernel version 2.6.23 as an example. It divides the startup process into four stages such as hardware initializations, kernel guiding, init process running, and terminal building. After analyzing the startup process of every stage, it draws the following chart of the startup process. The analysis of the startup process of Linux operating system is the basic work for deeply analyzing Linux kernel, cutting out Linux operating system and finally applying Linux into the embedded system. 
    Research on Font and Color Support to Standard Control in MiniGUI
    CHENG Gang;SHANG Lihong
    2010, 1(02):  161-165.  doi:
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    This paper introduces the MiniGUI system and its operational mechanism. It analyses the principle that MiniGUI support for a variety of font. On this basis, it gives the detail methods on modification of the MiniGUI source code to expand the support to the standard control on font and color, and realizes the userdefined function.
    Research and Implementation of Association Rules Mining Visualization
    SHI Huijuan;SUN Lei;LI You
    2010, 1(02):  166-169.  doi:
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    With the continuous development of data mining technology and applications, data mining visualization technology becomes one of the hot areas of the research field. This paper analyzes the concept and classification of data mining visualization technology, completes the implementation of association rules mining based on Netbeans 6.1 development platform with Java, JFreeChart technologies and combines with the PMML model standards. Experiments show that association rules mining visualization can guide and optimize the association rules mining process effectively and lead a better assessment of the results and analysis.
    uDig Plugin Design and Implementation Based on Eclipse
    LI Nan
    2010, 1(02):  170-172.  doi:
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    This article analyzes the Eclipse Plugin Architecture, and extends the uDig function based on actual demand. The article brings forward a method on uDig plugin design, and puts it into implementation on the Eclipse platform.
    Application of Workflow Technology in Government Procurement System 
    AI Dengzhi;HU Xiaoqin;LI Tao;LIU Xudong;ZANG Wen juan;CUI Xuelin;CHEN Yu
    2010, 1(02):  173-175.  doi:
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    By means of workflow technology, a system to manage the product and its suppliers is presented. Based on the work reference model defined by WFMC, the system abstracts tasks and roles from realistic management of products and suppliers. The system well binds the function such as the management of suppliers and product, browsing the product information, searching for product information together. By using of this system, the efficiency of government procurement will greatly improve.
    Optimized Analysis of Tobacco Materials Data Based on Cotraining
    LU Jialei;ZHU Shihua;DING Xiangqian;HUANG Yuehua
    2010, 1(02):  176-179.  doi:
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    This thesis combins the two important studies machine intelligence and tabacco industry to solve insdustial material analysing research subjects. The author explains the theoretical and applied analysis of the cotraining algorithm which belongs to semisupervised learning framwork. Based on analysis of the theroy and need of tobacoo industy, the author constructs a machine learning model based on cotrainging which apply to optimized analysis of tobacco materials data. Some experiments are done to verify the correctness and superiority compared to other methods.
    [WTHZ]Key words:[WTBZ]
    A Mapping Schema from XML Database to Relational Database
    MA Zhujuan;WANG Hongxi
    2010, 1(02):  180-182.  doi:
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    The paper introduces how to convert XML documents to labeled directed graph, discusses how to mapping XML database to relational database based on the labeled directed graph. There are two steps in this mapping schema technique, i.e. attribute mapping and value mapping. Finally, the paper discusses several operations on database base on this mapping schema technique.
    Analysis of Linux Pagecache and Influence on Disk I/O Optimization
    ZHANG Xueliang;ZUO Xiaocui
    2010, 1(02):  183-187.  doi:
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    With constantly expanding of the speed gap between the secondlevel storage(commonly disk devices) and the main memory, disk I/O greatly impacts the performance of computer systems, and moreover has become a bottleneck that limits average system performance. As the main form of disk caches in the OS, the pagecache mechanism closedly interacts with buffered file read/write operations, and thus plays an important role in improving disk I/O performance. Therefore, the pagecache is one of key components of the virtual memory subsystem。
    Implementation of Universal Database Operating Composition Based on Grid Control
    JIN Baidong
    2010, 1(02):  188-190.  doi:
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    The thesis demonstrates the theory to implement universal database operating composition based on Grid control, discusses how to contact Grid and database view, data dictionary, also points the importance for Grid control on generating interface dynamically and displaying the universal check information. The composition can be planted in other enterprise, doesn’t need to program again.
    Design and Implementation of Google Maps APIbased Vehicle Monitoring System
    MA Yue;HE Xiaowei;OUYANG Tielei
    2010, 1(02):  191-196.  doi:
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    Vehicle real time monitor, an important approach of modern autos group management, can effectively improve the productive forces of trucking company. A platform of vehicle monitoring and a data communication service,which is based on Google Maps API and AJAX,is designed in this paper, including the design and implement of the service of GPS information collection, communication protocol decoding, real time vehicle location, trace playing, fence setting and etc. The work provides a useful reference for the design of vehicle monitoring platform. 
    Research on Information Appliance Based on Definition Language of IAIDL
    ZHANG Chucai;LIU Hong
    2010, 1(02):  197-199.  doi:
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    By adopting the idea of object oriented, designs IAIDL and presents the internal logic structure of information appliance, which radically solves the compatible problem of IA’s devices. Finally, extends hardware and software on SX52 to achieve a simulated experimental system.
    Fault Diagnosis for Certain Equipment Based on Improved BP Neural Network
    WANG Zhenxing;;LIU Chenyu;LI Li;YANG Naizong;ZHANG Suqin
    2010, 1(02):  200-203.  doi:
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    Characteristics of the neural network and expert system are analyzed, and a fault diagnosis method for a certain equipment based on BP neural network and expert system is proposed. Fault diagnosis for equipment based on BP neural network and expert system model are constructed.A weak of collection and expression of knowledge on classical expert system are overcomed. Availability of the method based on BP neural network system and expert system is verified by experimental results of a equipment fault.〖JP〗
    An Improved XML Access Control Model 
    GUO Jinliang;JIA Songhao;YANG Cai
    2010, 1(02):  204-206.  doi:
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    In XML access control, the paper improves the existing models authorized the definition of the main areas. Meanwhile, the request evaluation module and the decision execition module will be explicit separated. Customization security strategy is increased the flexibility, versatility and safety rules.