• Proceedings of the KIEE Conference
• /
• 2000.07a
• /
• pp.507-509
• /
• 2000

This study developed the window based power flow analysis software for distribution system. This system was developed by using Visual C++ 6.0 in Microsoft Windows 98 environment; therefore, it utilized many advantages of window based programming for providing user-friendly interface. The backward/forward sweep algorithm is implemented in this software for power flow analysis. Especially, this software includes the newly developed classes of complex function, matrix function, and power flow calculation procedure, so it has high flexibility for enhancement and modifications.

• Journal of the Korea Society for Simulation
• /
• v.4 no.2
• /
• pp.1-16
• /
• 1995

The performance of a computer system depends on the system architecture and workload, and the high performance required in many applications can be achieved by the scalability of the system architecture and workload. This paper presents scalable workload, a performance metric of scalable speedup and hierarchical modeling for the scalable computer system as well as the development of the object-oriented simulator spmplC++ Which is an advanced C++ version of the discrete event-driven simulation environment smplE. In addition, this paper presents two examples of applying scalable speedup, hierarchical modeling and simulator smplC++ to analyze the performance effect of the sclcbility in a multiprocessor system and a network-based client/server system.

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.23 no.57
• /
• pp.21-39
• /
• 2000

BOM(Bill of Materials) is a listing or description of raw materials, parts, and assemblies that define a product. In manufacturing companies that produce various products with short life cycles, it is very important to manage the BOM of products with various options and versions efficiently. BOM information should be required to share among the departments of engineering, production control, material purchasing, cost management, and shop floor within a manufacturing company. In order to share BOM information efficiently, information system based on WWW(World Wide Web) should be developed. Thus, this paper models and implements Web-based Generic BOM Management System (WGBMS) for management of a number of variant products which are consisted of standard parts under ATO(Assemble To Order) production environment. Also, object-oriented methodology was used to model a generic BOM and phases of navigational design and interface design were introduced to implement the prototype of WGBMS. And Object-Relational Database Management System (ORDBMS) was used to construct the WGBMS database.

• Proceedings of the Safety Management and Science Conference
• /
• 2000.05a
• /
• pp.225-239
• /
• 2000

The objective of ECMS(Environmentally Conscious Manufacturing Systems) is to consider environmental effects through the entire product life cycle from product development stage to design, manufacturing, supplying, using and disposing stage. Recently, environment-oriented recycling, reusing and manufacturing technologies have been researched actively in every engineering fields. In the field of chemical engineering, HHS(Health Hazard Scores) which classifies and analyzes hazardous materials in production processes has been presented. Metal cutting processes also have a lot of harmful factors, and especially hazardous components in cutting fluids have been known to have a bad effect on workers and working area. However, research works such as HHS have been little accomplished in metal cutting processes. In this research, a environmentally conscious machining process is presented by classifying hazardous components in cutting fluids, by using LCA(Life Cycle Assessments) and HHS method, and by evaluating environmental effects from cutting fluids.

• Journal of the Semiconductor & Display Technology
• /
• v.4 no.1 s.10
• /
• pp.23-27
• /
• 2005

This paper presents a simulation methodology for the poly-silicon oriented TCAD(technology-CAD) system. A computer simulation environment for the poly-silicon processing has been set up with the proper adoption of the two-stream model for ion-doping, diffusion, and defects inside of grain and on the grain boundary. After the simulator calibration, simulation results for the poly-silicon diffusion hat shown a good agreement with the SIMS data.

• 제어로봇시스템학회:학술대회논문집
• /
• 2005.06a
• /
• pp.1581-1585
• /
• 2005

This paper describes the design and implementation of a XCP (Xeline Control Protocol) network system. XCP is an information oriented protocol which delivers information with high reliability according to the predefined rule. The XCP network system is implemented with partly hardware and partly software based on the power line communication(PLC) environment. A network management tool which interacts with devices is also developed. In order to verify the feasibility of the proposed architecture, the implemented XCP network system is evaluated using a lighting control system.

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2001.04a
• /
• pp.393-397
• /
• 2001

This paper addresses an Intelligent Agent-based Open Architecture Cell Controller for Intelligent Manufacturing System(IMS). With an Intelligent Agent approach, the IMS will be a independent, autonomous, distributed system and achieve a adaptability to change of manufacturing environment. As the development methodology of Open Architecture Cell Controller, an object-oriented modeling technique is employed for building models associated with IMS operation, such as resource model, product model, and control model. Intelligent Agent-based Open Architecture Cell Controller consists of two kinds of dependant agents, that are the active agent and the coordinator agent. The Active agent is contributed to control components of IMS in real-time. The coordinator agent has great role in scheduling and planning of IMS. It communicates with other active agents to get information about status on system and generates the next optimal task through the making-decision logic and dispatch it to other active agent.

• Journal of the Korean housing association
• /
• v.3 no.2
• /
• pp.43-50
• /
• 1992

In the course of modernization coupled with urbanization, children's rooms of Korean urban housing has emerged as a symbol of evolution of people's dwelling standards. At the same time. family member's privacy-oriented needs in the home environment have shown its usefulness in the quality of life to some extent. The authors made an analysis of the parents' privacy behavior in relation to the children's rooms, through 1)parents' access rule, and 2)their intervention including goods as a measure. The results are as following: 1)Between knocking behavior a]eng wi th call ins by names of their children (or clearing throat) and non-knocking behavior. there proved to be difference in the parents' attitudes towards access to the children's rooms. The difference is made mainly by the children's age, sex and the exclusiveness of children's rooms. 2)The degree of intervention within children's roms by peopel and goods is observde to be different significantly according to children's age, but not significantly to children's sex and exclusiveness of children's rooms.

• Korean Journal of Health Education and Promotion
• /
• v.11 no.2
• /
• pp.1-17
• /
• 1994

This study is concentrated on the concept of health promotion through the consideration and the review of articles and books concerning the theory and practice of health promotion. The study results are as follows: Firstly, the early definitions of health promotion are behavior-oriented concepts in general. Secondly, the concepts of health promotion generally regard environmental factors as of great importance. Thirdly, the concepts of health promotion attach great importance to the aspect of policy. Fourthly, health promotion programs usually need the support from the study results of social epidemiology. Fifthly, some distinguished academic fields have been fused into an integrated field under the concept of health promotion. Sixthly, the two key concepts of health promotion are behavior and environment. This study concludes that health promotion can be defined as "the optimal combination of educational, medical and policy resources to maximize the health potential of people most efficiently or effectively through the change of their behavioral and environmental factors at the level of individual, organization or society.

• International Commerce and Information Review
• /
• v.9 no.4
• /
• pp.67-89
• /
• 2007

The purpose of this study is to find out current problems facing the Commodity Trust of Internet Shopping Mall and to suggest proper solutions. the Commodity Trust of Internet Shopping Mall recently emerged as ubiquitous business environment that is not this only sales promotion but the Commodity Trust. Now we should have focused on the cooperation among the organizations in the Commodity Trust of Internet Shopping Mall; need various kind of government aids; need marketing-oriented and professional skills to build and enhance the growth of trade show exhibition industry. Accordingly, the important thing is an exploratory study of assessing the Commodity Trust of Internet Shopping Mall etc.