• Journal of the Korea institute for structural maintenance and inspection
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• v.10 no.1
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• pp.149-156
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• 2006

Steel hollow section members have been widely used as a major material in the construction market due largely to their efficiency, their aesthetic appeal and to the technical development. But it is true that the commercial Program for dealing with a joint problem using hollow section members is not firmly established due to its uncertain and variable design parameters. The qualitative analysis program developed by using computer is introduced in this study. The results of that analysis are shown in the two-dimensional space in variable ranges and diagrams, so it would be useful to whom have not many experiences and knowledges. It is represented that the differences between Canadian code and the Korean standard for the connections of hollow section members. And It is verified that the software is applicable to the Preliminary design in steel tubular structures.

• Journal of Advanced Marine Engineering and Technology
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• v.33 no.2
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• pp.304-312
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• 2009

Automated design system of injection mold was developed in this study. Shapes of mold parts and mold base were defined according to standards of mold components and database modules of mold components were built. And then an automation program of mold design was developed by the user definition features, family table and Pro/Program of Pro/Engineer. The automatic production divided into mold base and standard parts was manipulated to manufacture parts meeting the design requirements and the selected parts were changed in size and shape to meet the design goals. The mold design was also carried out to have organic relations and be easy in case of a change to the mold part or mold base. As a result, it is possible to design the mold efficiently and conveniently modify the designed mold parts and base by using the developed automated design system in this study.

• The Journal of the Korea Contents Association
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• v.10 no.9
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• pp.18-25
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• 2010

Computer Graphics(CG) are very important in the movie industries. Recently, many domestic CG Companies participate in a movie creation. However, most companies only use commercial tools, and do not concentrate on developing techniques. This is why they use the commercial tools in spite of its lack of functions. In this paper, we explain the importance of developing technical tools to complement the shortage of commercial tools through the previewer for fluid simulation. We present how we design and implement the previewer to specialize it for fluid simulation. Finally, we estimate our previewer's performance and discuss with result.

• The Journal of the Korea Contents Association
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• v.1 no.1
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• pp.59-67
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• 2001

A new intelligent home appliance is being appeared with overlap of telecommunication and home appliance technology. In this kind of product the user interface especially on screen display(OSD) and remote controller, holds a key post and is critical factor of performance and usability. In spite of this importance, the user interface is designed by circurt engineer from a viewpoint of engineering on the basis of his experience and unsophisticated insight. Therefore this study clarifies a user- centered design process of OSD from the designer's viewpoint on the basis of development case and gives a guideline for each stage in consideration of characteristic features that the user interface design of OSD is highly enfluenced by hardware specification and restricted by remote controller as input device.

• Information Systems Review
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• v.4 no.2
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• pp.343-360
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• 2002

Ideal project manager is a critical factor for successful IS development. The purpose of this paper is to investigate the knowledge and skills requirement of IS project managers and to suggest ideas of a career path development for powerful IS project managers. From a previous research work, this paper was conducted to classify 6 domains-strategic management, business function, innovation, general management, personnel management, and technical expert- as knowledge and skills of IS project managers, and to generate IS project manager's career path which is developed through engineer, analyst and designer, planner, and project leader. The results provide a good framework to train and develop knowledge and skills of IS project mangers.

• Journal of the Korean Society for Railway
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• v.14 no.2
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• pp.87-93
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• 2011

This work describes an availability model of highly available systems to achieve Five-9's availability. Modern railway systems have raised users' expectations of powerful "always on" services. The crucial characteristics of these highly available services are essential to many modern businesses area, such as telecommunications, railway systems, information operations, Web-based businesses, and so on. The architecture-based model of system availability is useful to assess the feasibility of meeting a high availability target. The Markov model approach is straightforward for relative system engineers to adapt when they model highly available system failure and the failure recovery process. This work proposed the improved availability model through UML2.0. It is shown that the architecture-based model of system availability is a good reasonable by its application of the railway systems.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.322-326
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• 2007

Recently, as construction projects are getting bigger and more complex, the number of participants has been tremendously increased. According to the current trend, the necessity of collaboration design management controlling communication and information exchange among many participants has came up. So this study considers the roles and tasks of each participant and informations that occur in each design stage, and looks into the present status of collaboration in design management of domestic design companies. Finally, the function of collaboration system is drove. It supports tasks of design participants, such as input design outcome, decision making among concerned people and solution of design change and interference.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.4
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• pp.1812-1816
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• 2011

This research developed chemical flow control system(CFCS) essential for spinner equipment in nano semiconductor manufacturing process under the 100nm to prevent complex process defect due to missing spread after chemical injection. The devices developed in this research, which can be swiftly replaced in case abnormal state element changes or wafer manufacturing defect occurs, are anticipated to improve module yield as well as real-time monitoring on the state element. In addition, as a result of mounting H/W and S/W system to control detailed operation sequence in production line and executing performance check and verification, we can be exactly detected in five abnomal process type.

• The Journal of the Korea Contents Association
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• v.9 no.6
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• pp.45-52
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• 2009

Recently, we started a project development of the digital expert system for the product design supporting in manufacturing industry. This digital expert system is used to the engineers in manufacturing industry for the process control, production management and system management. In this paper, we develop the ontology based inference engine shell for building of expert system. This expert system shell included a various functions which of Korean language supporting, graphical ontology map modeling interface, fuzzy rule definition function and etc. And, we introduce the knowledge representation method for the ontology map building and ontology based fuzzy inferencing method.

• The Journal of the Convergence on Culture Technology
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• v.7 no.3
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• pp.469-474
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• 2021

Nowadays, a lot of software engineers struggle with the efficient back-end design of mobile application programs operated on the new mobile platform. It is simply because not only their lack of experiences in developing large scale system but also the unstructured nature of the mobile software, where there are no standard solutions. Furthermore, since big data is at the center of many challenges in system design of mobile software, so an efficient system design scheme is required for the development of such data-intensive applications. In this paper, we propose a systematic and efficient system design method that can figure out the substantial nature of the mobile software and solve the difficulties of the back-end software engineers.