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主 办:江西省计算机学会
江西省计算中心
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Table of Content
10 July 2009, Volume 1 Issue 7
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人工智能
A Survey of Research Work on Incremental Learning Based on Feedforward Neural Networks
LIU Jian-jun;HU Wei-dong;YU Wen-xian
2009, 1(7): 1-4,43. doi:
10.3969/j.issn.1006-2475.2009.07.001
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Incremental learning mode is meaningful to efficiently learn new information without forgetting previously acquired knowledge and without requiring access to the original database. The incremental learning principles of feedforward neural networks and feedforward neural network ensembles are expounded. The main incremental learning algorithms based on the principles are introduced and analyzed in detail. Finally, the future direction of incremental learning is depicted.
An Improved Apriori Algorithm for Mining Association Rules
LIU Rui-xiang;ZOU Hai
2009, 1(7): 5-8,21. doi:
10.3969/j.issn.1006-2475.2009.07.002
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An improved Apriori algorithm is developed based on study of the principle and efficiency of the Apriori algorithm, which is more efficient than the old algorithm.
Application Research on Fuzzy Mathematics in Grid Trust Model
LI Xia;DAI Bo;ZHANG Zhi-guang
2009, 1(7): 9-11. doi:
10.3969/j.issn.1006-2475.2009.07.003
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Fuzzy mathematics is a brandnew subject of mathematics. Additionally, it is a great breakthrough from the science of computer to the mechanism of physical science for human being. The grid is regarded as the hottest topic in the research of information and technology area for several decades. The paper uses fuzzy mathematics as a tool to evaluate the trust model and the grade of service quality, which makes the assess of users trust values become more accurate, flexible and reliable. Fuzzy language variable is a quantitative, descriptive model which can describe the fuzzy character of trust and show the characteristic of itselfintuition and concision. It also can depict the dynamic quality of the grid and promote the development trust model of the grid in the theory.
Solving Traveling Salesman Problem by Genetic Algorithm
WANG Hui
2009, 1(7): 12-16,2. doi:
10.3969/j.issn.1006-2475.2009.07.004
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This paper introduces TSP problem and fundamental principle for genetic algorithm. Aiming at solving TSP problem,the paper expounds the utilization of genetic algorithm in code element and genetic arithmetic operators, and some processing method in the producing of the arithmetic. Finally, the paper provides experimental results and summary.
Research on Fault Diagnosis Technology Based on BP Neural Network
HE Xiao-hui;SHI Rong
2009, 1(7): 17-21. doi:
10.3969/j.issn.1006-2475.2009.07.005
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This paper analyzes the characteristics and shortages of traditional fault diagnosis methods, upon these analysis chooses BP neural network to perform fault diagnosis, discusses BP neural network model building method in detail, according to the layer structure and fault characteristics of equipment, applies neural network integrated technology to effectively overcome the shortage of single network fault diagnosis and increase its efficiency and accuracy dramatically.
Analysis and Research on Particle Swarm Optimization Algorithm
WANG Jin;ZHANG Qiu-ming;HUANG Bo
2009, 1(7): 22-25. doi:
10.3969/j.issn.1006-2475.2009.07.006
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Particle swarm optimization algorithm is a kind of new evolutionary computation technology. The algorithm completes the iterative process through following the personal best solution and the global best value. The basic principles of PSO are introduced firstly. Then several typical improved algorithms of PSO are introduced and analyzed and compared by simulation experiment. Finally, future research issues are given.
软件工程
Study on Present Situation and Development Trend of Ontology Construction Tools
WANG Chang-xia;LI Guan-yu;CHEN Bu-wei
2009, 1(7): 26-28,3. doi:
10.3969/j.issn.1006-2475.2009.07.007
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Ontology construction is a hotspot of research in semantic Web. There are many ontology construction tools produced by various organizations. Based on an all around investigation of the existing ontology construction tools, an analysis and comparison of seven ontology construction tools is given, and the differences of some essential characteristics are pointed out. At the end, the summary of the existing bottleneck problem in present situation is given, and the future research direction is suggested.
Research on Integration for Evaluation and Validation of Architecture and Architecture
XU Wei-ke
2009, 1(7): 29-31. doi:
10.3969/j.issn.1006-2475.2009.07.008
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200
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For the relationship between evaluation and validation of architecture and architecture, as well as the coupling between the issue of how to proceed, the paper presents a tight coupling of the program, which assesses the architecture verification module embedded into the architecture, in order to achieve an assessment of the dynamic, realtime, makes the results of the assessment to be able to timely response architecture.
Research and Design of Web Application System Development Platform
PAN Wei;CAI Hai-shan;CHEN Zhao
2009, 1(7): 32-35,5. doi:
10.3969/j.issn.1006-2475.2009.07.009
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In order to improve Web application system quality and developing efficiency, the impact productivity of common module is analyzed and a platform to assist developing Web application system is designed. Based on modular design and rapid prototyping method, the Web application system development platform is able to enhance the processing of system development documentation and provide some utilitarian functions including documentation management, component library, dynamical compilation, versioning, etc. The studies suggest that the platform can shorten the developing cycle of common module and characterizes the whole processing management of Web application system development life cycle, largegrained building, modularization and rapid generating prototype system.
Design and Implementation of Bank Business System on Pluggable Framework for Access Control
DU Yun-feng;YANG Hua-lin;NIU Jing-chun
2009, 1(7): 36-39,6. doi:
10.3969/j.issn.1006-2475.2009.07.010
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The pluggable framework for access control(PFAC) is proposed. The framework includes information extraction module, pluggable configuration module, implementation of access control devices, and access control decision platform. The framework is implemented in a small banking system. Through the use of the framework, banking system is very well adapted to the everchanging rules of access management. Features of PFAC are showed with high reusability, easy to use and easy to operate. PFAC has solved when various domains redundant development access control module and the deployment brings the question which cause the code redundancy of application system, difficulty with maintains entrusts with heavy responsibility, can protect the application system resources well, safeguard systems correct movement.
Research on CLI of Storage Management System
WANG Xu-xu;LIU Qi-he
2009, 1(7): 40-43. doi:
10.3969/j.issn.1006-2475.2009.07.011
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1021
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Management of a largescale SAN requires a robust configuration management system, and a strong monitoring capacity for centralized management of the resources is necessary. Storage resource management applications are one category, and they manage and monitor the physical and logical level of the storage resources. CLI, command line interface, which is used to controller commands and configure commands, is a user state executable file, using the command tree structure algorithm, with convenient operation, high efficiency, speed, safety and other properties. The paper gives its design and implementation.
Research on Web Services Composition Model Based on Workflow Template
LI Shun-xin;LING Hai-yang;JIANG Nan
2009, 1(7): 44-47. doi:
10.3969/j.issn.1006-2475.2009.07.012
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Web services composition is an important research field of service applications. By the similarity between workflow and Web services composition, a new Web services composition model based on workflow template is proposed. In this model, the workflow and Web service can be found more accurately by using the advantage of the functional semantics. The Agent method is used to execute the composition flow. Finally, the template flow and the Web service are published to the register library by using the publishing algorithm.
Description of Featurebased Multidomainoriented Software Components
LAN Jian-min
2009, 1(7): 48-50. doi:
10.3969/j.issn.1006-2475.2009.07.013
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At present, componentbased software development model is widely accepted by software developers, because this model can improve software quality, reduce software development and maintenance costs. Component description is the basis of component retrieval and reuse. This paper presents a featurebased, multidomainoriented description of the components, including five parts: functional components, applications, component relations, component quality and other. Componentbased software development model in the largescale promotion of the circumstances, the component currency will become the key links of the component industrialization. Featurebased description method of components solves semantic understanding difficulty in the course of the component currency, promotes the domain component standardization promotion.
Design of Distributed Computing Model Based on J2EE
GAN Na;ZHENG Qiang;PAN Shan
2009, 1(7): 51-52,5. doi:
10.3969/j.issn.1006-2475.2009.07.014
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With the development of computer and network technologies, the realization of distributed computing is a natural product by the rapid development of the Internet. The paper designs a distributed computing model that integrates J2EE with the middleware technology CORBA, it could realize the distributed computing technology and solve the problem of the collaboration of the objects under the heterogeneous environment.
Design and Implementation of Integrated Framework for River Software Requirements Engineering Based on OOXML
WANG Ying
2009, 1(7): 53-56. doi:
10.3969/j.issn.1006-2475.2009.07.015
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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.
信息安全
Key Management and Database Encryption Engine in Encryption Database System
CHEN Rui
2009, 1(7): 57-59. doi:
10.3969/j.issn.1006-2475.2009.07.016
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Key management and database encryption engine are two essential components of database encryption system. Key management manages the various keys used in the encryption system, including the user’〖KG-*4〗s personal key, data encryption key and so on. Encryption engine is responsible for encrypting and decrypting the important data through the table keys. They have some inconsistencies in description on encryption keys. This paper discusses and gives the relevant solutions.
RSA Demonstrating System Based on GUI of Matlab
CHEN Hua;CAI Guang-xing
2009, 1(7): 60-63. doi:
10.3969/j.issn.1006-2475.2009.07.017
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This paper makes a deep research about the key algorithms of RSA, such as primetest, arithmetic of generator, algorithm of modular power and modular inverse, and so on. Based on the GUI of Matlab, RSA system is developed. In the system, to take the abstract of this paper for example, the processes of parameters acquirement, encryption and decryption are demonstrated visually through the figure. It shows that this system is of great benefit to understand the RSA fundamentals and improve the teaching effect.
Implementation of SLP-based Security Service Discovery System
SHEN Zhong-zhen;HUANG Yuan-yuan
2009, 1(7): 64-66,6. doi:
10.3969/j.issn.1006-2475.2009.07.018
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With the network services and users increasing, service discovery as intermediary between service providers and users is increasingly becoming one of the main studies of network services. This paper introduces a secure service discovery architecture, focusing on how to build an agreement based on the SLP to provide services for registration and inquiry mechanism, and certification center KDC as to achieve the certification service to ensure service reliability.
Analysis and Improvement of Performance on SSL VPN Servers
ZHANG Ai-ke
2009, 1(7): 67-69. doi:
10.3969/j.issn.1006-2475.2009.07.019
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195
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This paper analyzes the performance of the existing SSL VPN servers, and proposes some solutions to improve the efficient performance of them.
网络与通信
Solving Multiple Constrains QoS Routing Based on Improved Particle Swarm Algorithm
CHI Wen-jie;CHEN Jia-qi
2009, 1(7): 70-74. doi:
10.3969/j.issn.1006-2475.2009.07.020
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In multimedia network, the routing problem is subject to QoS constrains. These problems are NPcomplete. An improved particle swarm algorithm is proposed to solve the QoS routing for multiple constrains. Some methods of evolution mechanism, constructing feasible solution space and adaptive inertia weight are presented to enhance capability of algorithm searching the best global solution. Simulation results verify the proposed algorithm is effective. The algorithm gets good performance and can effectively solve QoS routing with multiple constrains.
Research and Design About Personalized Resources Recommendation System in Distance Learning
WAN Wei;LE Jun
2009, 1(7): 75-76,7. doi:
10.3969/j.issn.1006-2475.2009.07.021
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1057
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By analyzing the history of the network resource access for a distant learner and reference to the similar learners, an algorithm is designed to provide personalized recommendation services, which can effectively enhance the efficiency of the use of learning resources and improve the quality of teaching.
Research on Personalized Web Information Service
2009, 1(7): 77-79. doi:
10.3969/j.issn.1006-2475.2009.07.022
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861
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Research on Load Balancing Technique of CSCL System
YUAN Yuan
2009, 1(7): 80-83. doi:
10.3969/j.issn.1006-2475.2009.07.023
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1031
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CSCL system enables the learners distributed in different places to improve their achievements with shareable resources. However, the enormous data transmission and computing intensity in the session of different learners can result in the heavy load of a single server. Common load balancing techniques and scheduling algorithms are firstly introduced. Then, against the characteristics of CSCL system, a novel dynamic weighted round robin scheduling algorithm is proposed based on NAT load balancing technique and TCP Handoff mechanism to fulfill the balance of CSCL system.
Study on Ajax in Web Application
LI Jian;HUANG Han-wen;LIU Fang;CHEN Jian-ying;
2009, 1(7): 84-87,9. doi:
10.3969/j.issn.1006-2475.2009.07.024
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388
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Ajax solves the defects on refreshing the whole page when users submit request in the traditional Web application by asynchronously communicating between the browser and the server, achieves to submit the page without refreshing, enhances interactivities in Web applications, and improves user experience. This paper introduces the framework of Ajax, gives an example of Ajax in a typical Web application development, analyzes the lack of Ajax technology, and gives a view for the development of Ajax in the future.
Design and Implementation of Network Watthour Meter Concentrator
HE Xiao-jun;LIU Lei
2009, 1(7): 88-91. doi:
10.3969/j.issn.1006-2475.2009.07.025
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Due to many drawbacks in IC card prepayments watthour meter system, the paper puts forward network watthour meter system, integrates different communication network, implements unified management of lowvoltage automatic meter reading and charging system, introduces the function, design principle and implementation of concentrator. The concentrator is tested by China Electric Power Research Institute. This system takes on electricity purchasing of 200,000 residents in Beijing area and data collection of Electric Corporation.
Research on Switching of Earth Stations Between TDM Channels
LI Bing;MIAO Jing-jun
2009, 1(7): 92-94. doi:
10.3969/j.issn.1006-2475.2009.07.026
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1204
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The number of the earth stations in a TDM channel is limited, along with the increase of the earth station, one TDM channel can’t send control injunction to all the earth station, so this thesis proposes a conception which is more TDM control channels, extending the TDM channel from one to more, achieving the grouping of the earth station and the switching between the channels. In the basis of the parameter, the earth station setting the value in the channel chooses field. On duty of the correlational TDM channel, the system takes the reserved of the channel for every TDM.
Application of LVDS in Air GAP
GAN Ran;YANG Guang-ming
2009, 1(7): 95-97,1. doi:
10.3969/j.issn.1006-2475.2009.07.027
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1036
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The use of LVDS technology solves the problem of speed bottleneck of GAP gateway system data“ferry”. Highspeed LVDS data transmission is one of the most important applications, and is also the main performance of GAP gateway system. This paper introduces the working principle of GAP system and LVDS technology, the use of FPGA hardware avoids the complexity of the interface design. LVDS technology in the GAP system has good application prospects.
Applications and Practice of Shortrange Wireless Network
LANG Xi-gui;YU Hong-biao
2009, 1(7): 98-100. doi:
10.3969/j.issn.1006-2475.2009.07.028
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This paper introduces the application and practice of the shortrange wireless network with the technical analysis of two implement case(streetlighting wireless control system, factory transmitter datacollection system), analyzes the problems in the development and implement of shortrange wireless network project, and gives the solution.
Design of City Water Environment Realtime Monitoring System Based on Intelligent and Distributed LonWorks
WANG Jian;CAI Yu-jie;LIU Yuan
2009, 1(7): 101-105,. doi:
10.3969/j.issn.1006-2475.2009.07.029
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1070
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The status of city water environment monitoring in home and abroad is briefly introduced. On the basis of discussing the monitoring request, it is described that the technique advantage of LonWorks adapts to monitoring system, from the aspect of frame, function and application. Especially, the processor of neuro chip, application I/O port, memory mirror and service of LonTalk protocol are analyzed. Then, the paper presents the monitoring system based on LonWorks, and accounts for the function and procedure of each section. A detailed study of the measure container, frame of local control layer and configuration of iLon100 server is carried out. At last, the problems which are worth researching further are put forward.
Design and Implementation of Mobile Commerce System Based on Java ME and Java EE
2009, 1(7): 106-110. doi:
10.3969/j.issn.1006-2475.2009.07.030
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909
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计算机辅助教学
Application of Regular Expressions in Knowledge Points Extraction of Computer Category Materials
SUN Qin-hong;ZHU Ying-wen
2009, 1(7): 111-112,. doi:
10.3969/j.issn.1006-2475.2009.07.031
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1114
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Now computer technology is developing rapidly, it is a problem to be resolved how to get the computer to help readers find important knowledge point. The article solves how to make the computer automatically and quickly extract knowledge points of the materials. In the realization process, the article uses regular expressions to match the type of knowledge points by scanning the whole text. Finally, the found knowledge points are saved in database.
Analysis and Design of Online Examination System Based on UML
LIU Jun-li;YAN Jun-song
2009, 1(7): 113-116. doi:
10.3969/j.issn.1006-2475.2009.07.032
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2735
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In order to take scientifically and effectively the resources and technical advantages of information networks, the paper analyzes the online 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.
Research on Experiments of Game Design Based on Socialized Networks
CHEN Yu-mei
2009, 1(7): 117-119. doi:
10.3969/j.issn.1006-2475.2009.07.033
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1018
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This paper researches the feasibility and key technique of experiments of game design based on socialized networks which can make students attend the design and development of game and popularize the game rapidly based on huge customer groups of socialized networks. Also the experiments can evaluate the level of game design of students by feedback of game users.
Application of VisualSTATE in Vocational Education of Computer Science
YANG Zhen-lun
2009, 1(7): 120-122. doi:
10.3969/j.issn.1006-2475.2009.07.034
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1086
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To solve the problem of vocational students’ inadequate programming abilities in computer major, this paper puts forward a teaching mode based on a tool: VisualSTATE. A smooth connection between programming basic courses and specialized professional courses is established as well as the education for programming abilities of students is enhanced observably in this teaching mode.
Application of LabVIEW in Teaching of Digital Circuits
YAN Wen-juan
2009, 1(7): 123-125. doi:
10.3969/j.issn.1006-2475.2009.07.035
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1091
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According to the characters and functions of LabVIEW, simulation teaching for LabVIEW digital circuits is put forward. Setting 83 encoder, made of 74148 circuits, as the priority encoder, the paper analyzes the application of LabVIEW in teaching of digital circuits. As the result of research findings, the design is completed for the 42, 83 and 104 normal encoders and priority encoders. Programs for all the encoders are gathered on the panel of the main programs, and displayed in the form of digital numbers. Through the simulation verification, it is found out that it functions in the same way as that of the actual electronic components and parts. In this way, the teaching methods become diversified, the teaching quality is improved, and the interest and active participation for learning is strengthened.
应用与开发
Design and Realization of Mine Roadways Geological Sketch Picture Drawing System Based on ArcGIS Engine
SU Cheng-bao;ZOU Hai
2009, 1(7): 126-129,. doi:
10.3969/j.issn.1006-2475.2009.07.036
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234
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Manual mapping method is adopted by the mining geologic surveying department while compiling the drawings of mine geologic sketch picture. However, many disadvantages such as slow mapping speed, poor mapping precision, difficulty in modification and management are caused subsequently. So the old method using manual mapping and processing can not meet the need of modernization. A new system implementing automatic mapping based on ArcGIS Engine is proposed, and the main architecture and basic function of this system are introduced.
Development on Software System of ELM Based on MVC and Command Design Pattern
ZHAO Xue-fang;LIN Yong-tao
2009, 1(7): 130-132. doi:
10.3969/j.issn.1006-2475.2009.07.037
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1047
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Based on the requirement on the software system of electronic lettering machine(ELM) and the advantage of modelviewcontrol(MVC) framework design, thinking about the flexibility of the Command design pattern, a software system based on MVC is set up to make the context of electronic lettering machine available to different kinds of situations. This system provides nice user interface and great support for the user.
Design and Implementation of Film Ticket Booking System Based on J2ME
CHEN Yi;DENG Shi-rong;LIU Yun
2009, 1(7): 133-135. doi:
10.3969/j.issn.1006-2475.2009.07.038
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249
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With development of Internet and wireless communication industry, mobile Ecommerce becomes a new application. J2ME technology has been widely accepted as a mobile Ecommerce development platform for its safety and seamless connection with J2EE technology. The paper presents the architecture of J2ME platform and introduces how to design and develop mobile Ecommerce application: film ticket booking system based on J2ME. The system has features of good interface and function structure, which can meet practical requirements.
Exploration and Implementation of EGovernment Uniform Application Platform
LIU Zheng
2009, 1(7): 136-138,. doi:
10.3969/j.issn.1006-2475.2009.07.039
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1078
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At present, E-Government construction in China is promoting the depth and breadth. The construction of business application system in each region and department is also ascendant. “Pyramid Engineering”, Document Transmission System, Emergency Command System, Open Information Platform, Administrative Examine and Approval System and Social Credit System, etc., have been launched and achieved good social economic benefits. However, too many access points result in the lack of a unified access control mechanism; vertical and horizontal business applications coexist leads to the lack of an effective operational coordination; and each system working for their own causes the lack of uniform data transfer mechanism. As a result, data security will not be effectively protected, and exchange and sharing of government information will be constrained. This paper makes useful explorations to solve above problems and establishes a unified application platform of E-Government.
Design and Implementation of Cuttingtools Database in NC Simulation System
ZHANG Xia;YANG Yue
2009, 1(7): 139-141. doi:
10.3969/j.issn.1006-2475.2009.07.040
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994
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This paper introduces a numeral control machining simulation system model. Further, the paper explains the description of cuttingtools, building and management of cuttingtools database and configuration of cuttingtools base in NC simulation system. And the article shows in details the principle of designing cuttingtools database.
Edge Detection Based on Wavelet Lifting Transform and Its Application
GUAN Sheng-qi;DONG You-geng
2009, 1(7): 142-144. doi:
10.3969/j.issn.1006-2475.2009.07.041
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1064
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According to wavelet lifting scheme analysis, a new method for edge detection based on wavelet transform is presented. Firstly, subimages of horizontal, vertical and diagonal details are acquired through the wavelet decomposition. Secondly, according to subimages characteristics, subimage edges are detected by different edge detection operator. Lastly, image is reconstructed through the inverse wavelet transform. The experimental result confirms that the proposed method is feasible through traffic flow detection.
Research on Credit Evaluation System of Science and Technology Project
TANG Jing-xiong
2009, 1(7): 145-146,. doi:
10.3969/j.issn.1006-2475.2009.07.042
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1015
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By analyzing the key elements in implementing process of credit evaluation information system for science and technology project, the paper points out the synthetical solution of credit evaluation information system for science and technology project with practice.
Analysis and Design on Anhui Tobacco Company Collaborative Office Automation System
ZHU Yan
2009, 1(7): 147-150. doi:
10.3969/j.issn.1006-2475.2009.07.043
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1075
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This paper introduces what are office automation and collaborative office automation system. It also discusses the objective and requirement, design theory, global design and technology platform, functions and characteristics of Anhui tobacco collaborative office automation system. The mode of Anhui tobacco collaborative office automation system, which takes budget management as the thread, optimizes the business procedure and procedure control as the key point, enhances cooperative ability within different departments of the enterprise and the core competitiveness of enterprises.
Techniques of VC++ Calling Matlab
LI Jian;HAN Guo-dong;SUN Zhi-peng
2009, 1(7): 151-154,. doi:
10.3969/j.issn.1006-2475.2009.07.044
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1040
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The problem about Matlab progresses transferring to VC〖KG-*2〗+〖KG-*2〗+ is discussed. MCC orders and COM objects are used to achieve this work. These methods can not only disengage Matlab progresses from Matlab circumstance entirely but also make the best use of the characteristic of VC and Matlab. By these methods, speed and capability of software are improved.
Design and Implementation for Soakagent Management System Based on .NET Platform
YANG Wei-ming;LIU Quan-xi;LIU Cheng-chen
2009, 1(7): 155-158. doi:
10.3969/j.issn.1006-2475.2009.07.045
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248
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Soakagent management information system, which realizes the informational management of material inventory, manages the complicated formula, analyzes the product quality, selects the information of event and prints the report, provides a detailed data analysis for raise a craft and the detailed alarm data for the event occurrence. The paper explains some problems of complicated formula management, database access, system safety and design pattern of MIS based on .NET, and has some value for realization of MIS in ERP System.
Satellite Formation Keeping in Considering Nonlinearity
WANG Ji-bing;WU Wei-hua
2009, 1(7): 159-162. doi:
10.3969/j.issn.1006-2475.2009.07.046
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1682
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As to satellite formation keeping moving on low orbit in the influence of nonlinearity, subordinative satellite orbit may drift related to reference orbit, initial error of orbit drift can be restrained by traditional Lyapunov controller, which makes the system stable, but the large shock error can’t be removed. This thesis introduces a multilooped structure for satellite formation keeping, the ruler which can satisfy Lyapunov stability is set in inner loop, an outer LQR state adjuster added on Lyapunov controller is introduced, this inner and outer loop controller can restrain subordinative satellite drift of orbit related to reference orbit, which can keep satellite formation stable. Finally, numerical results show that the two inner and outer loop controller can satisfy the actual require.
Research on Shrapnel Calculation System Under Integrated Network Environment
ZHAO Hong-zhi;ZHAO Jing-qiu;JING Wei
2009, 1(7): 163-166. doi:
10.3969/j.issn.1006-2475.2009.07.047
Asbtract
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1007
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In order to increase the highexplosive shell development efficiency and to manufacture the highexplosive shell in high speed, the increasement of accuracy of shell’s computation and the sharing of networks data are realized by studying the method of integration networks and the shell’s calculation.
Premises Distribution Scheme of Campus Network Based on SYSTIMAX Solutions
CHEN Chang-hui;YANG Zhen-lun
2009, 1(7): 167-169. doi:
10.3969/j.issn.1006-2475.2009.07.048
Asbtract
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1061
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This paper puts forward a premises distribution scheme of campus network based on SYSTIMAX solutions from CommScope company, the scheme improves the efficiency of maintenance and management of network. The scheme has high performance and low price, can be applied to the construction and reconstruction of campus network.
Application of Oracle Database System Optimization Technology in Post Office System
YUAN Hong-jie;CHU Bei-bei
2009, 1(7): 170-171,. doi:
10.3969/j.issn.1006-2475.2009.07.049
Asbtract
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1056
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With the wider and wider application of Oracle database in post office, its performance optimization is directly related to the system performance of post office. In view of the basic principle of the database performance optimization, technologies that how to avoid competition and optimize data accessing during the database design phase are introduced. Furthermore, the adjustment technology of memory and I/O from operating system or database instance is presented in order to optimize the database performance in the phase of database operation.
Research on VB Printing Technique
ZHANG Bo
2009, 1(7): 172-174. doi:
10.3969/j.issn.1006-2475.2009.07.050
Asbtract
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1034
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The paper puts forward two ways to improve the speed and quality of designing program. The text box, label, picture box and so on can be recognized automatically by programs and can be printed by the program for controls to realize automation of printing. It also introduces practical technique of print preview and realizes printing of complicated forms.