• Journal of Advanced Marine Engineering and Technology
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• v.13 no.3
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• pp.64-71
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• 1989

In this paper, a computer program for simulation of 4 cycle diesel engines including intake and exhaust manifold system is developed. The wave action theory is applied for optimization of the intake and exhaust manifold system. The calculation results of this computer program is finely accurate and agreed well with experimental results. Accordingly, it is recognized that the developed computer program can be utillized very usefully for the design of intake and manifold system. And then, influential factors of the engine performance in the design of intake manifold is numerically investigated by the calculation only. As the results it is concluded that the inertia one of the dynamic effects on the intake and exhaust maninfold affects mainly the engine performance and the pulsation one is a side effect.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 1993.10a
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• pp.120-127
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• 1993

This paper is concerned with the integrated computer program system aiming at efficiently performing the structural analysis and design. The developed computer program system is introduced and applied to a simple two-dimensional structure to show the general concept of the integrated system. Some design modifications and re-analyses are illustrated including local mesh refinement, These show the efficiency in doing design modification and analysis.

• 한국기계연구소 소보
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• s.18
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• pp.137-146
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• 1988

Shrink-rings (stress-rings) are used in the fabrication of compaction dies to increase the allowable pressures for a given die material. This paper proposes a new approach, where the maximum allowable shrinking pressures are calculated on shrinked plans in the radial direction and then the fractional fitting pressures below the maximum shrinking pressures are used as the design values. A computer program, DIECAD, is developed. The paper presents two design cases as examples in order to easily illustrate the design procedures from the computer program DIECAD

• Proceedings of the Korean Society of Agricultural Engineers Conference
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• 1999.10c
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• pp.212-218
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• 1999

In this study , Computer programs for the optimum and automation desgin of reinforced concrete box culvert were developed. It was shown that even though the strarting points and optimization method are different the objective function and optimum design variables converge to a value within a close range respectively, and consequently the optimum design program developed in the study is reliable and stron. 3D-design drawing can be drawn using automation desgin computer program developed in this study.

• Journal of the military operations research society of Korea
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• v.10 no.1
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• pp.65-86
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• 1984

This thesis presents a design and partial implementation of a program family of extended pretty printers. Factors that influence the readability (perception) and understand ability (cognition) of computer programs are indentified, previous work is reviewed, and new solutions are suggested. Extensions to the previous pretty printer designs include a capability to selectively display levels of control of a program. In order to accommodate different computer languages and to allow for, several secondary functions, a family of pretty printers is designed. This design facilitates easy extension, contraction and modification.

• Journal of the korean Society of Automotive Engineers
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• v.5 no.1
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• pp.63-78
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• 1983

As a basic study on the machine tools of modular structure, a Computer Aided Design of feed driving unit and an optimization of the dynamic characteristics of a machine tool structure are carried out.. Computer-aided design technique enables designers to save time and to easily do the job in variant design by effectively documenting design techniques and data. In this study a computer program package was developed for automatic design of a proper feed driving units by utilizing building block principle of OIWA CADET.

• Journal of Advanced Marine Engineering and Technology
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• v.10 no.1
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• pp.74-84
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• 1986

Ejectors, having no moving, lubricating and leaking parats, are widely used as marine pumps because of its high working confidence. For instance, uses in ships are stripping in crude oil tank, bilge discharge in engine room, ballast water pumping on are carrier, and brine discharge from fresh water generator. And it is also used as cooling water recirculating pump in boiling water type nuclear reactor and deep-well pump. It is not easy to determine the optimal dimension for designing each ejector agreed with its suggested performance condition, because complicated calculations must be repeated to obtain the maximum efficiency affected by flowrate ratio, head ratio, area ratio and so on. Therefore, it is considered that the CAD (Computer-Aided Design) for ejector is a powerful method for design according to the individual design condition. In this paper, a computer program for water ejector design is developed based on the previous paper on theoretical analysis and experimental results for water ejector. And from the theoretical approach, an equation for the working limit and an equation for determing the shape of throat are obtained. The validity of the present computer program is sufficiently confirmed through the comparison of the computed results with the main dimension of the previous manufactured water ejector. This program will be easily developed as the CAD for various kinds of ejectors, including steam ejector.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.18 no.36
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• pp.175-182
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• 1995

Industrial safety management program can be divided three part that is education, technology, and management. The effectiveness of a industrial safety management program depends on the ability to manage hardware which is technology and software, education and management, In this research, it will be described that how to design and develop Computer Integrated Safety System and Computer Based Training System for Press operations which is how to integrated industrial safety program wi th production planning and control in order to control efficiently using personnel computer system.

• International journal of advanced smart convergence
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• v.8 no.4
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• pp.113-120
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• 2019

Recently, the artificial intelligence(AI) is used in various environments in life, and research on this is being actively conducted in education. In this paper, we designed a Design-Based Research(DBR)-based AI programming education program and analyzed the application of the program for the improvement of understanding of AI in elementary school. In the artificial intelligence education program in elementary school, we should considerthat itshould be used in conjunction with software education through programming activities, rather than creating interest through simple AI experiences. The designed education program reflects the collaborative problem-solving procedures following the DBR process of analysis - design - execution - redesign, allowing the real-world problem-solving activities using AI experiences and block-type programming language. This paper also examined the examples of education programs to improve understanding of AI by using Machine Learning for Kids and to draw implications for developing and operating such a program.

• 제어로봇시스템학회:학술대회논문집
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• 1986.10a
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• pp.425-430
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• 1986

This paper introduces the program to develop graphics-oriented, interactive, computer-aided design modules for machine elements which are developing in Mechanical Engineering Department of The Ohio State University in U.S.A. The CAD modules are developed to be efficiently performed within the arena of minicomputer- and personal computer-based computer-aided design. In addition, this paepr deals with the state-of-the-art in computer-aided design.