• Proceedings of the Computational Structural Engineering Institute Conference
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• 2004.10a
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• pp.93-100
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• 2004

In this study, a support system is developed for the design of facility structures. This system is called Expert System for Design Optimization of Industrial Plant Structures (EDIPS). Based on the strength assessment of steel-plate structures such as ships and off-shore structures, a detailed load calculation method is developed utilizing the database of various plant structures. The method, developed in support of design and for the assessment of strength, constitutes a part of EDIPS. By providing relevant and consistent design data and procedures to engineers, EDIPS is expected to be useful as an important development tool for maritime distribution system that is used to control the transportation by ships and loading unloading, and storage of cargo.

• Journal of the Korean Society for Precision Engineering
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• v.15 no.2
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• pp.81-89
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• 1998

Numerical calculation tools for forging of gear-like components based on kinematically admissible velocity fields for upper bound method applicable to various deformation features of workpiece in forging processes were suggested. Each one of them deals with unidirectional flow of metal on dies, such as external involute spur gear. square spline, internal serrations. A complex calculation tool of gear-like component forging process was built up by combining these kinematically velocity fields. In this paper the workpiece with 110th external and internal teeth is divided into two parts. The deformation of each part is analyzed simultaneously using numerical calculation tool from combined kinematically admissible velocity field. The experimental set-up was installed in a 200 ton hydraulic press. As a result, each kinematically admissible velocity field could be combined with others and the calculated solution are useful to predict the capacity of forging equipment.

• Journal of Korean Home Economics Education Association
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• v.12 no.1
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• pp.89-108
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• 2000

The objective of this study is to analyze variables that have significant effects pocket money management of adolescents. and to provide useful information for parents and educators who educate adolescents. Data obtained from questionnaires returned by 1,200 adolescents who were randomly selected from middle and high Schools in Chejudo. The data were analyzed by using SPSS Win Program. 40.3% of the adolescents were satisfied with their pocket money. Monthly average pocket money of them was 305.00￦, middle school students were 19.780￦. high school students were 41.230￦ male students were 32.880￦. and female students were 28,130￦. Pocket money expenditure of adolescents differed significantly according to gender. school, region. and pocket money. 43.3% of adolescents had experiences in doing part time for making pocket money. Gender, school, and pocket money have a statistically significant effect on it. The strongest predictor of pocket money management of adolescents is their consumer socialization. Pocket money management of them mostly was influenced by family. friends. school. and mass media.

• Proceedings of the Korea Concrete Institute Conference
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• 2000.10a
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• pp.683-688
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• 2000

Nowadays, shotcrete plays an essential part in the construction of underground structures, and fiber reinforcement is so useful for increasing the toughness of the concrete that is spotlighted at tunnel or pavement construction. Therefore, many type of fibers have been introduced on the site and variety of tests have been developed to measure and quantify the improvements achievable in fiber reinforced concrete and shotcrete. Therefore, this study focuses on the flexural toughness according to the fiber types and appraisal methods. The major interests are fiber types, volume fractions and evaluation methods.

• Journal of the Korean Institute of Educational Facilities
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• v.16 no.3
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• pp.49-58
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• 2009

This study is carried out to understand application type and change of learning space and to find out actual situation of management in open planned elementary schools. The twelve elementary schools were selected based on case studies and fundamental data of the agencies performing basic plan, the actual situation of management was studied by interviews of principals and teachers. By the results, open planned elementary schools have been notably reduced after the year of 2004 and corridor expending type was broadly chosen as a plane type for open space. It was also shown that learning space was transformed to the independent type integrating open space to the unit classroom in most part of twelve cases. In addition, whole sliding doors fixed in open classrooms by some Provincial Office of Education didn't need certain physical shut-offs, and it was considered as one of useful alternatives to manage open space.

• Journal of the Korean Data and Information Science Society
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• v.14 no.3
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• pp.511-523
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• 2003

Internet has become an important part of teenagers' life and has changed the life style of teenagers. Internet can be an useful tool for educating teenagers and also can be misused as a cyberspace for social problems. Recognizing that teenagers spend most of their free time enjoying internet and they form their own new life culture, it is needed to develop practical strategies for maximizing the positive effect of internet on the teenagers' culture. The purpose of this research is to suggest a desirable way for forming teenagers' healthy internet-based culture. The research was conducted by the survey of teenagers in the city of Pyongtaek on their use of internet and their problems The survey shows that most of teenagers are using internet in order to release the stress and most of them are hooked on it. It also indicates that cyber police and volunteer groups should be formed to help the desirable teenagers' internet-based culture.

• Proceedings of the Korea Concrete Institute Conference
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• 1995.10a
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• pp.344-349
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• 1995

In recent years, the most common bridges are showed a decrease of duriability in quick times of 10~20 years after construction. Therefore, the project of maintenance and management is located a important subject more and more. The maintanence-management of bridges begin from inspection of bridge and this accupy more important part with repairing-reinforcing method. In a point of view liked this, the purpose of this paper is to propose the most rational and useful method for the maintance-management of bridges with comparing and examming inspection kind inspection frequency and judge standard etc. that manage the each organization of Korea and Japan. Also in the bases of this result, hereafter, it will propose the standard idea for the organization etc. of databank of the bridges.

• International Journal of Fluid Machinery and Systems
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• v.6 no.1
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• pp.33-48
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• 2013

If large pressure fluctuation is observed in the draft tube of a Francis turbine at part-load operation, we have generally called it draft-tube-surge. As occurrence of this phenomenon seriously affects the limit of turbine operating range, extensive studies on the surge have been made since proposal of surge-frequency criterion given by Rheingans. According to the literature survey of related topics in recent IAHR symposiums on hydraulic machinery and systems, in which state-of-the-art contributions were mainly presented, a certain review of them may be desirable for an outlook on the future studies in this research field. Thus, in this review paper, the authors' previous attempts for the last three decades to challenge the following topics: a rational method for component test of a draft tube, nature of spiral vortex rope and its behavior in a draft tube and cavitation characteristics of pressure fluctuations, are introduced together with other related contributions, expecting that more useful and significant studies will be accomplished in the future.

• Culinary science and hospitality research
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• v.8 no.1
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• pp.125-147
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• 2002

This study is to show the importance of customer and to define the customer's meaning in food industry. According to previous research, a consumer is a very small part of customer. At present and in the future, a customer is not only a consumer but all of interior and exterior environments related to a company. However the scope of customer has been extended eventually. Therefore, it is important for a company to find out and secure the proper customer giving profit. This study considers a relative marketing as a way to impress a customer. It is a useful marketing technology to make profits and company's growth. And to achieve a relative marketing successfully, it is necessary to perceive a fundamental understanding and building an organization for workers. Therefore, this study propose that a company would accomplish followings to continue a quality growth. First, Understanding and confidence about workers. Second, Building the culture of a company's organization impressive to a customer Third, Continuing effort and interest ing about service. In conclusion, a company will accomplish a customer satisfaction successfully through developing a service organization and performing relative marketing.

• Culinary science and hospitality research
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• v.10 no.2
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• pp.72-83
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• 2004

The study aimed at conducting comparative analysis of employees' job satisfaction between Korean brand restaurant and foreign's in the food service industry, and suggesting useful human resource management. As a result, the survey showed several findings; The first, workers in the Korean brand restaurant have more satisfied than foreign brand restaurant employee overall. The second, expecially employees in the Korean brand company have higher pride and vision than those of Foreign brand company in the restaurant business. The third, service staffs in the both recognized very low in the working schedule, fairness of promotion, and wage. Some implications are as followed; The first, works as a one day manager or unit manager who is one of the best employees. The second, use education & training video to increasing the communication. The third, attend in the decision making to being a part of co' and giving a motivation.