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Analysis and Design of Online Examination System Based on UML LIU Jun-li;YAN Jun-song Computer and Modernization    2009, 1 (7): 113-116.   DOI: 10.3969/j.issn.1006-2475.2009.07.032 Abstract （3254）            Knowledge map    Save In order to take scientifically and effectively the resources and technical advantages of information networks, the paper analyzes the online examination system and the flow of the entire structure of the system, designs based on UML case diagram, sequence diagram, activity diagram of the system so that the teacher can use the system to conduct online test for students, management and development of examination papers, and calculation and query scores and so on. Related Articles | Metrics | Comments（0）

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Research on Heterogeneous Patent Data Source Integration CHU Zhen-hua;SUN Yong;;ZHANG Shu-kui;;FEI Wei-xing Computer and Modernization    2009, 5 (5): 29-0.   Abstract （2682）            Knowledge map    Save This paper analyzes the common characters between semistructed and nonstructed patent data, and formulates a common Data Transform Model which is fit for patent data of China and seven other countries and two organizations. Database system and file system are combined to localize the heterogeneous patent data. It proves an effective method by experiments. Related Articles | Metrics | Comments（0）

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Implementation of Radix2 FFT Processor Based on FPGA ZHANG Hui;;ZHANG Ji-long; Computer and Modernization    2009, 5 (5): 15-0.   Abstract （2669）            Knowledge map    Save In view of the current wide demands of Fast Fourier Transform application in digital signal processing field, this paper introduces the method of realizing a 8point Radix2 and DIT (Decimation in Time) FFT processor based on the analysis of FFT algorithm. Then, the design is synthesized on Xilinx xc3s1500 chip family, and simulated using Modelsim SE 6.0. Results indicates that this processor function realization is correct, and has high operating speed and precision. Related Articles | Metrics | Comments（0）

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Design of Individual Dose Instrument Based on Zigbee GONG Di-chen;HUANG Qiu;MA Xiong-nan;DING Wei-cheng Computer and Modernization    2009, 5 (5): 87-0.   Abstract （2668）            Knowledge map    Save This paper introduces the design of individual dose instrument which measures nuclear radiation. ZigBee is used in data transmission between the instrument and upper computer. Centralized management of dose instrument is achieved based on ZigBee. CC2430 is the center of this radiation dose monitor system. Related Articles | Metrics | Comments（0）

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Design and Realization of Graduation Design Management System Basedon Campus Network XI Zhen-yuan;JU Hong-jun;FAN Yu-tao Computer and Modernization    2009, 5 (5): 57-0.   Abstract （2659）            Knowledge map    Save he graduation design is the most important phase of all the teaching process in higher education. It involves plenty of students, teachers,teaching phases and takes a long period. Therefore, the management of graduation design process is difficult and trivial and should be more scientific, managements. The campus network of NCIST has been built and the efficiency of management will be improved greatly with the enough utilization of the network resources. The paper proposes a detailed schema on design and realization of management system for graduation design (thesis) based on campus network. Related Articles | Metrics | Comments（0）

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Research on Hybrid Programming Model on MutliCore Cluster System ZHANG Jun;;WAN Jian-yi; Computer and Modernization    2009, 5 (5): 1-4.   Abstract （2555）            Knowledge map    Save This paper proposes using multicore processor as a computing node in the SMP cluster system, and studies the MPI+OpenMP hybrid programming model which is suitable for this system. To compare the performances of hybrid programming model and the pure MPI algorithm, two different matrix multiplication algorithms on both models are designed and tested in laboratory. The results show that the hybrid programming model can provide better performance. Related Articles | Metrics | Comments（0）

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A Message Passing Mechanism of Distributed Workflow System Based on XML and SOAP LUO Shi-mei;;LI Zhong;;XIE Ling-ying Computer and Modernization    2009, 5 (5): 43-0.   Abstract （2553）            Knowledge map    Save To meet the workflow system in the crossplatform, distributed computing and extendibility of the demand,based on XML and SOAP,a distributed workflow system mixedmode messaging mechanism is presented. It uses XML as system information and data exchange standards, and provides an automatic conversion mechanism between MOM information and SOAP message, binds HTTP protocol to transmit SOAP message, and finally achieves the purpose of heterogeneous distributed workflow systems communicating. Related Articles | Metrics | Comments（0）

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esign and Realization of B2C EMarket System Based on ASP.NET ZHONG Ping;CAI Zhao-quan;LU Qing-wu Computer and Modernization    2009, 5 (5): 39-0.   Abstract （2549）            Knowledge map    Save The paper studies the development of the B2C EMarket system based on ASP.NET of the general purpose technology,and then describes in detail the system design of the framework and functions, as well as the realization of the system. The systeme uses of the multilayer design model and component technology of ASP.NET, makes the system structure more simplified,more pack processed,and the lower cost of the system development and maintenances, and enhances system modular reusability, meanwhile favorable to the rapid development of the system. Related Articles | Metrics | Comments（0）

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UML Modeling and Realization of Campus Synthesis Website XIN Dong-jun;ZHAO Song;ZHANG Tian-rui Computer and Modernization    2009, 5 (5): 93-0.   Abstract （2534）            Knowledge map    Save China education is moving towards the studentcentered teaching approach. Adopting the studentcentered teaching approach should strengthen the teacherstudent emotion interaction in process of teaching and learning. Based on this, the campus synthesis website is built. The website owns the forum, the weblog, the electronic commerce, the personnel market and so on. This article brings objectoriented modeling language UML into the design and the realization process of the campus synthesis website. The tool of Rational Rose 2003 is applied to construct function requirement model, static state model, and dynamic model. At last, the programming realizes the above model. Related Articles | Metrics | Comments（0）

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Research and Realization of Portable File System Based on FAT32 ENG Li;SUN Feng-dong Computer and Modernization    2009, 5 (5): 23-0.   Abstract （2524）            Knowledge map    Save Along with the mobile phones becoming more and more intelligent, the traditional ones have changed absolutely, and much higher demands of functions have been brought forward. However, these demands all depend on greater memory capacity of mobile phones. And, the file system is the most important section of the process. This document explains the elements of the FAT32. Finally a file system based on the SD card of mobile phone is accomplished. Related Articles | Metrics | Comments（0）

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Research on Methools of IC Faults Diagnosis TAO Li-fang;MA Qi;ZHU Hong-wei Computer and Modernization    2009, 5 (5): 26-0.   Abstract （2508）            Knowledge map    Save Faults diagnosis of Integrate Circuit (IC) is composed of faults detection and location. The traditional detection, which functioned to detect whether the circuit has faults or not, can not locate, rank or find out the root reason of the faults. So further analysis is needed to identify the types of faults and modify the functional design or electronic design. As the development of IC technology, faults diagnosis which focuses on faults location is becoming critical increasingly. Some traditional methods about diagnosis and faults diagnosis technology based on circuit information are introduced .  Related Articles | Metrics | Comments（0）

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Development Modes and Development Trend of Applied GIS MA Si-gen;;HE Ming-qin Computer and Modernization    2009, 5 (5): 65-0.   Abstract （2480）            Knowledge map    Save Geographical Information System(GIS) can be divided into instrumental and applied GIS. The development modes of applied GIS include independence development, simplicity secondary development and integrated secondary development. Firstly, applied GIS development process is introduced. Then, three development modes of applied GIS are discussed individually, and a comparison on such different development characteristics is made. Finally, the developmental tendency of applied GIS is discussed. Related Articles | Metrics | Comments（0）

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Research on Production Appearance Modeling CSCD Application Technology Based on Web CAO Hui-min;LIU Gang-tian;CUI Feng-kui Computer and Modernization    2009, 5 (5): 61-0.   Abstract （2457）            Knowledge map    Save The communication of Web pages to Open IDEAS is realized by Java, the independent parameters of 3D model can be modified by combining Prg with Excel. By means of the math relation in Excel electronic sheet, the optimal dependent parameter of 3D model can be got through optimization. The user can use the optimal parameter directly to carry out the parameterized design without installing any software. The method proposed in this article can be used to develop the parameterized design module in the WCSCD system. Related Articles | Metrics | Comments（0）

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Support of WSS Platform for Software Development of SaaS Model XU Yuan-hu;YU Ben-gong;SHEN Hao-jie Computer and Modernization    2009, 5 (5): 33-0.   Abstract （2452）            Knowledge map    Save This paper analyzes the characteristics of multitenant， UI settings， ondemanding and expansibility of SaaS model. Combining with WSS platform technology， the support for a variety of characteristics is demonstrated from WSS platform to SaaS model of software development， and a certain extent applicable system model to SaaS model is proposed. For the various characteristics of SaaS model， some experiments are carried out and the support is validated by a smiple instance, and it gets the result： WSS platform for SaaS model can reduce the workload of the development of UI configure and ondemanding function. Then WSS platform can promote the software development of SaaS model in a certain range. Related Articles | Metrics | Comments（0）

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Security Management in IPbased Urban Network XU Lin-feng;ZENG Ju-gen;LI She-hong Computer and Modernization    2009, 5 (5): 126-0.   Abstract （2449）            Knowledge map    Save With highspeed development and widespread of the network construction, network security issues become more and more concerned. For the network development department, the further construction and the development of the business requires higher security for the network connection. This paper analyzes the architecture of the IPbased urban network, and analyzes the possibility of the security issues in each layer of the architecture. Finally combined with the IPbased urban network of a broadcast television,the paper proposes the technique and advices on the security management of IPbased urban networks. Related Articles | Metrics | Comments（0）

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Research on Distributed Virtual Cluster Render System ZHANG Li-min;TANG Ming Computer and Modernization    2009, 5 (5): 110-0.   Abstract （2408）            Knowledge map    Save Aimed at the rendering bottleneck and the problems of distributed rendering resource search in 3D cartoon, a distributed virtual cluster rendering system on a basis of dualtier architecture is proposed and the functional models are introduced in detail. How to compute the virtual cluster rendering is defined through the uniform description of rendering resource. The search algorithms on distributed rendering resource are proposed and the validity of the algorithms is checked. Related Articles | Metrics | Comments（0）

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Optimization Algorithm for MPEG-4 Video Compression Coding CHENG Qi-yue Computer and Modernization    2009, 5 (5): 140-142.   Abstract （2404）            Knowledge map    Save Based on the research background of mobile communication, with roundly understanding the MPEG4 standard, the paper introduces three algorithms to optimize the DCT and motion estimation respectivly. In DCT module, it adopts binDCT and partial coefficients DCT to decrease complexity. At the same time, Normalized Partial Distortion Search (NPDS) is used to reduce computations of motion estimation. Via theory analysis and simulation result, these three algorithms not only ensure the images quality, but also reduce the encoding time.  Related Articles | Metrics | Comments（0）

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Design of Online Teaching System Based on SOA JI Jia-qi;LIU Hong-zhuan;XU Su;CHEN Si Computer and Modernization    2009, 5 (5): 81-0.   Abstract （2385）            Knowledge map    Save This article elaborates the SOA concept, technology and its implementation. The online exam system is analyzed and designed based on SOA. Finally, it gives this system’s frame structure, functional module and realization. Related Articles | Metrics | Comments（0）

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Rotationinvariant Denoising Algorithm for Cyclic and Dihedral Symmetry Images ZOU Yu-ru;LU Jian Computer and Modernization    2009, 5 (5): 130-0.   Abstract （2362）            Knowledge map    Save A rotationinvariant denoising algorithm is proposed for restoring noisy images with cyclicr and dihedral symmetries. Based on the rotationinvariant (or plus reflection invariant) characteristic of cyclic (or dihedral) images, the proposed algorithm is performed successfully by rotating (or plus reflecting) and summing the noisy images. Experimental results show that, compared with other classic denoising methods, the proposed algorithm can restore the symmetric images efficiently. Related Articles | Metrics | Comments（0）

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Checkcode Login with Integration of Spring Security and JCaptcha WANG Wei;FANG Shuqiong Computer and Modernization    2011, 1 (5): 35-37.   Abstract （2359）            Knowledge map    Save Security is an open source Java security framework, can be very easy to integrate with the application system, and deploy to any J2EE container. Integrating the two technologies, checkcode login is realized. Related Articles | Metrics | Comments（0）

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Design Scheme of Networked Virtual Laboratory Based on LabVIEW JIANG Bo Computer and Modernization    2009, 5 (5): 117-0.   Abstract （2347）            Knowledge map    Save Considering the large investment, slow renewal and difficult maintenance of equipment in the traditional laboratory of electrician and electron, a design scheme of the networked virtual laboratory based on LabVIEW is presented. The new laboratory with this design scheme has many advantages, such as short developing period, low investment, and easy functional expansion, which can enhance utilization efficiency of the equipments and teaching quality greatly. Therefore, the design scheme based on LabVIEW is a new thought on the teaching reform of electrical and electronic experiment. Related Articles | Metrics | Comments（0）

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Design of Wireless Data Monitoring System Based on Single Chip and Kingview ZHANG Xue-wei, ZHANG Ce, CHEN Jin-yang Computer and Modernization    2013, 12 (12): 210-210.   DOI: 10.3969/j.issn.1006-2475.2013.12.049 Abstract （2215）            Knowledge map    Save This paper introduces a temperature and humidity monitoring system based on AT89S52 MCU and PC which communicated by the wireless serial port. The system uses a single chip microcomputer as the slave computer to complete the temperature and humidity data acquisition, sends the data collected by the wireless serial port to PC. The design makes full use of the powerful data processing function of PC unit state Kingview V6.53 software and friendly man-machine interface design to display real-time temperature.  Reference | Related Articles | Metrics | Comments（0）

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Design and Implementation of Streaming Media Server Based on Darwin XIA Min;WU Zhonghai;YANG Ya-hui;WANG Hong-qin Computer and Modernization    2009, 5 (5): 19-0.   Abstract （2176）            Knowledge map    Save This paper, firstly, uses VTune tools to optimize its scheduling algorithm. Then, it improves the scheduling algorithm of Darwin Server, and adds a realtime monitor thread of monitor server state. The thread sends the server running state and parameters to the scheduler server, then the scheduler compares those parameters sent by all servers, and assigns the request of customers to the current minimum load server. Finally,the experimental clusters are set up to prove that the works in this paper are effective. Related Articles | Metrics | Comments（0）

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Implementation, Installation and Configuration of MPJ Parallel Programming Framework LIU Jun-li;LIN Xiao-rui;WANG Chu-bin;TAN Zi-yi;SITU Zhu-kun Computer and Modernization    2009, 8 (8): 164-168.   DOI: 10.3969/j.issn.1006-2475.2009.08.046 Abstract （2173）            Knowledge map    Save The MPJ programming interface provides MPIlike message passing for Java applications. In this article, an overview and introduction on the design and implementation of the MPJ parallel programming framework, including architectures, implementation mechanisms and correlated technologies, are presented. Besides, the installation and configuration process of MPJ Express are also introduced. At last, a practical MPJ program demo is given.  Related Articles | Metrics | Comments（0）

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Design and Research on Web Reports Based on Multi-database and Complicated Statistics XIAN Jin Computer and Modernization    2011, 7 (7): 161-164.   Abstract （2166）            Knowledge map    Save This paper tells how to use Crystal Reports and ADO.NET to develop reports based on multi-database and complicated statistics. It describes a structured solution which has already used in the line loss system of Zhuhai Power Supply Company. It transforms Crystal Reports to Excel files and uses ADO.NET to read them. It already is of a good effect in practice. Related Articles | Metrics | Comments（0）

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Design and Implementation of Integrated Framework for River Software Requirements Engineering Based on OOXML WANG Ying Computer and Modernization    2009, 1 (7): 53-56.   DOI: 10.3969/j.issn.1006-2475.2009.07.015 Abstract （2139）            Knowledge map    Save This paper produces an integrated framework for river software requirements engineering based on OOXML. The tool abstracts river software on top level, and describes it from background, task, entity, relationship between task and entity, entity action. The document is structured, and makes the process engineered and standardized. Related Articles | Metrics | Comments（0）

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Reviews on Event Knowledge Graph Construction Techniques and Application XIANG Wei Computer and Modernization    2020, 0 (01): 10-.   DOI: 10.3969/j.issn.1006-2475.2020.01.003 Abstract （2133）      PDF（pc） （912KB）（1708）       Knowledge map    Save Given its rich and flexible semantics by the graph structure, knowledge graph which describes the things in the objective world and their relationships has received extensive attentions in many fields. In objective world, event knowledge graph focuses on various dynamic events, entities and their relationships in terms of structured graph for more efficient management of massive data. In particular, the mining of dynamic event information and event logic in the application field are of great significance for understanding the laws of world development and assisting various intelligent applications. The construction techniques and typical applications of event knowledge graph are reviewed in this article, including event knowledge representation, event knowledge extraction, and event relation extraction. The challenges and research perspectives are also discussed. Reference | Related Articles | Metrics | Comments（0）

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Time Series Prediction Based on Mixture of ARMA and SVR Model LIN Hui-jun;XU Rong-cong Computer and Modernization    2009, 8 (8): 19-22.   DOI: 10.3969/j.issn.1006-2475.2009.08.006 Abstract （2117）            Knowledge map    Save The prediction of stabled time series often use ARMA model, but to the most of the unstabled time series often use the analysis of certainty and randomness time series. It is a waste of the random information with the analysis of certainty, while after the difference of time series, it comes to ARMA model with the analysis of randomness. The paper gives a way to full use of the residual data with SVR model after using ARMA model. Comparing to the single model used to predicting, the method of the mixture of ARMA and SVR model show to be more practical to improve the prediction precision. Related Articles | Metrics | Comments（0）

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Research on Geospatial Metadata Management for Web Service LI Zhenhua;;LIU Peng;WANG Zhen;XIA Lei;;GAO Chengdong; Computer and Modernization    2009, 1 (6): 106-109.   Abstract （2110）            Knowledge map    Save Geospatial metadata system is one of main ways to solve the spatial information sharing. This paper summarizes the standard and technology that is involved in the process of geospatial metadata management, proposing the way, that based on the global metadata database and multilayers metadata management,for the distributed Web situation. The description of the spatial metadata is not sufficient for the registration with UDDI, so the paper improves the description with the Web service information, also do some first research on the metadata management in the distributed situation. Related Articles | Metrics | Comments（0）

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Implementation of Dualchannel Data Communication in Scheduling System ZENG Xiao-ning Computer and Modernization    2009, 5 (5): 120-0.   Abstract （2104）            Knowledge map    Save cheduling console is the core of scheduling system. Implementation of dualchannel data communication between scheduling console and switch can ensure uninterrupted scheduling operations, and improve the system’s stability and reliability. Related Articles | Metrics | Comments（0）

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pplication Research on Data Mining Technique on Intrusion Detection System CHEN Si;XU Su;JI Jia-qi Computer and Modernization    2009, 5 (5): 114-0.   Abstract （2099）            Knowledge map    Save This paper firstly analyzes and researches the intrusion detection system, then brings up the necessity of introducing data mining technique to intrusion detection system, and deeply researches application of data mining technique on misuse detection and anomaly detection of intrusion detection system. Related Articles | Metrics | Comments（0）

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Method of Integrating CMS in Portal Environment Based on IPC Mechanism YUAN Linli;;ZHANG Jianjun; Computer and Modernization    2009, 5 (5): 11-0.   Abstract （2090）            Knowledge map    Save This paper introduces a method to integrate business system with CMS in portal environment. A business object has many related files which can be stored by CMS, when properties of files are managed by business system. The business system commits a request to manage related files to the portal system, then the portal event listener receives the request and deliveries the request to a bridge Portlet, which is called CMS Bridge Portlet, using IPC mechanism. This CMS Bridge Portlet communicates with CMS system through MBean Service registered in the application server. Related Articles | Metrics | Comments（0）

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Analysis of Open Source Workflow System——Enhydra Shark CHEN Xian Computer and Modernization    2009, 5 (5): 73-0.   Abstract （2075）            Knowledge map    Save Enhydra Shark is an open source software system which is based on Java platform and developed by Lutris Corporation. It completely complies with WfMC standards. Enhydra contains a visible modeling tool, a workflow execution service as well as a set of client application interfaces. Because the Shark’s source code is open, it can be refered its internal construction and be realized to practical application. There for, it’s very useful to analyze its structure and work process in detail, which is the main object of this paper. Related Articles | Metrics | Comments（0）

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Research on Conditional Access Technique for Cable TV Based on Cardless Model YAN Yi-gong;DONG Guo-zhen Computer and Modernization    2009, 8 (8): 126-129.   DOI: 10.3969/j.issn.1006-2475.2009.08.035 Abstract （2064）            Knowledge map    Save In the traditional digital cable TV CA (Conditional Access) system, the encryption of user entitle information, which is transmitted by headend system, is archived by the encrypted ECM (Entitle Control Message) and EMM (Entitle Management Message), and the decryption of the encrypted data in the receiver side, is completed by the smart card which is integrated in the SetTopBox. This paper proposes a new model of cardless LCA(Local Conditional Access) system based on DES（Data Encryption Standard）. In this system, the user entitle information, ECW (Encrypt Control Word) and Email etc. are carried within EMM which is transmitted by the headend management server, and in the SetTopBox side, the controlling of the entitle information is achieved by parsing the EMM information.  Related Articles | Metrics | Comments（0）

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Application of XML in Parallel Skeleton Specification XU Chun;;WAN Jian-yi;;YAN Fei-bo Computer and Modernization    2009, 5 (5): 51-0.   Abstract （2053）            Knowledge map    Save Based on intensive study of the idea, specification and application of parallel skeleton, this paper proposes a XMLbased method of parallel skeleton specification. This method provides a genetic processing model for all kinds of skeleton specification in skeletonbased systems, and gives great benefit on improving the universality, extensibility and portability of parallel skeleton libraries. Related Articles | Metrics | Comments（0）

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Application of ASP.NET 2.0 Single Signon Technology to Digital Campus YUE Xiao-ting Computer and Modernization    2009, 5 (5): 106-0.   Abstract （2021）            Knowledge map    Save After analyzing several typical cases of Single Signon in digital campus, the paper elaborates forms authentication based on ASP.NET 2.0, realizes Single SignOn with several examples in digital campus. Related Articles | Metrics | Comments（0）

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Research on Grain Moisture Detection Data Fusion Based on RBF Network XUE Hai-yan;ZOU Li-xia Computer and Modernization    2011, 1 (6): 103-3.   DOI: 10.3969/j.issn.1006-2475.2011.06.029 Abstract （2017）            Knowledge map    Save For improving the accuracy and speed of measurement, it needs to deal with the data from multisensors. Firstly, this paper introduces the characters and training mode of BRF network, and then describes the whole processes, which includes data collection, data normalization, neural network training and network structure selection, using multisensors to detect the grain moisture based on BRF network. Lastly, trained by the net models in Matlab, the results prove that the fitted value fluctuates around target values and the differentials are less than 7%. This method has advantages and can be applied in other industry fields. Related Articles | Metrics | Comments（0）

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Research on Load Balancing of Web-server System and Comparison of Algorithms LI Kun;WANG Bai-jie Computer and Modernization    2009, 8 (8): 7-10,1.   DOI: 10.3969/j.issn.1006-2475.2009.08.003 Abstract （1983）            Knowledge map    Save This paper simply introduces the types of load balancing strategy, and mainly describes the concept of load balancing of Webserver system. It also includes a detailed presentation of the algorithms of load balancing, which is a key point of judging load balancing strategy, and a comparison of these algorithms. Besides, an introduction of some new load balancing algorithms is presented in the paper. At the end of this paper, the prospect of load balancing on Webserver system is showed. Related Articles | Metrics | Comments（0）

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Application of Workflow in House Property Registration LU Jian-xin Computer and Modernization    2009, 5 (5): 84-0.   Abstract （1972）            Knowledge map    Save This paper applies the theory of workflow management system and project management to the practice of house property registration. It fulfills a set of management information system of house property registration based on theory of workflow management system, solves the problem of multiformity and uncertainty in the process of house property registration.  Related Articles | Metrics | Comments（0）

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Development of Navigation Software System for Blind on Windows Mobile Platform XU Zhu-bao;XU Yong;YANG Jun Computer and Modernization    2010, 1 (10): 116-119,.   DOI: 10.3969/j.issn.1006-2475.2010.10.031 Abstract （1930）            Knowledge map    Save Traditional navigation products are designed for the visually normal people, the use of the blind community has been limited. By the integration of Global Positioning System with Geographic Information Systems (GIS), a navigation software system specially designed for the blind is developed on the smart phone platform that running Windows Mobile system. This paper works out a navigation strategy special for the blind users by providing the custom-built map data and an optimized Dijkstra shortest routing algorithm. The software has the functions of route customization, location sharing and peripheral searching for the blind users. And the users can interact with the system by means of voice and buttons. Related Articles | Metrics | Comments（0）