• Journal of the Korea Institute of Military Science and Technology
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• v.7 no.1
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• pp.59-65
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• 2004

Survivability of the general purpose warhead during the target impact was studied. We first simulated the penetration phenomena and temporarily defined the survivability of the warhead at the impact situation. Next we launched the warhead projectiles by using Counter Mass Gun(CMG) system against the simulated specific steel target. The recovered warheads were carefully investigated and the penetration behaviors were analyzed. As a result the warhead can be hardened efficiently to enhance the survivability with the help of CMG test ＆ analysis.

• Journal of Power Electronics
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• v.10 no.4
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• pp.434-443
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• 2010

A general purpose experimental set-up has been designed and implemented for students to carry out various experiments on inverters in the power electronics laboratories of universities, during a few hours of laboratory work. This is the first inverter setup that incorporates hardware and software control, as well as an optional user interface in a laboratory experimental set-up of a single multi-purpose inverter, thus making the system versatile and very practical for both undergraduate and graduate students. The system can be controlled either by a computer or through a liquid crystal display (LCD) and a keypad control unit, and it constitutes a low-cost alternative to relatively expensive commercial teaching sets. The computer provides a user friendly interface and easier control for laboratory environments equipped with computers. The LCD and keypad units eliminate the need for a computer, which makes this system usable in the laboratory as a standalone unit as well.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.56 no.8
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• pp.1360-1366
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• 2007

In this paper, the load balancing which is one of the distribution power system's operation purposes was studied. Reconfiguration of Distribution power system presents that the configuration is changed by changing the switch on/off status which exists in the system according to the mentioned purpose. Through this method, the load of distribution power system is shown to be balanced. As a characteristic of complicated distribution power system, system is designed by being applied by OOP(Object Oriented Programming) method which connected more flexibly than existing Procedural Programming method, and the process of calculating the distflow and the loss of configurated system is shown. In addition, this paper suggests more efficient method compared by the results of reconfiguration on the purpose of the loss minimization and by the result of distribution power system reconfiguration on the purpose of load balancing. Moreover, it searches for the method to approach the global optimal solution more quickly.

• Hwankyungkyoyuk
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• v.20 no.2
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• pp.36-53
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• 2007

Environment is the important issue in many field of study. EU introduced multifunctionality of agriculture in 1980s and adopted strong policy to support that in 1990s. Environment is very important factor of multifunctionality of agriculture. But multifunctionality is not purpose in itself. It is exceptional rule and a means to an purpose. Multifunctionality of agriculture is relation to logic of economics. Mutifunctionality of agriculture was introduced in Korea in 1990s. Owing to different paradigm approach, multifunctionality of agriculture and environmental education have different concept and basis. The purpose of this study is to introduce socio-economical context of multifunctionality of agriculture and enhance mutual understand. More study activities should be encouraged to improve mutual understand and interdisciplinary research.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2005.11a
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• pp.443-448
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• 2005

This study aimed to evaluate the room acoustical performances of multi-purpose halls, analyzing the architectural features by survey and the acoustical characteristics by measurements. Moreover, vocabularies appropriate for the evaluation of the room acoustical performance were determined through questionnaire and subjective responses. From the correlation analysis and factor analysis to the physical values through measurements and the subjective evaluation using vocabularies, useful vocabularies for the evaluation of multi-purpose halls' acoustical performances were determined and physical parameters corresponding to the vocabulary were identified.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2000.11a
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• pp.474-481
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• 2000

recently out-door stadium have been built not only for athletic sports but also various events and huge concerts and 50% of the roof of multi-purpose stadium have been covered by dome and the tendency of this kind of building type gradually increase, in spite of this kind of building tendency, the appearance of acoustic obstacle is serious and have little solution of this problem in acoustic-prevent building field. The purpose of this study is for analysis of acoustic Properties(SPL, RT60, RASTI) and answering of characteristics of echo through acoustic computer simulation in Seoul world cup stadium in the first instance.

• Journal of the Korean Society for Library and Information Science
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• v.31 no.3
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• pp.147-164
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• 1997

The purpose of library automation is to enhance the library function by the computer. Systems Librarian Is the person who manages the automation systems, appeared with the presence of library automation. He/she has the professional knowlege of library and information science, experience of library services and computer technology, The purpose of this study is to introduce the role, characteristics, details of job, nature about systems librarian and to sugest how to educate them. It is important to support systems librarian and to study on them for the purpose of promoting library automation.

• Journal for History of Mathematics
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• v.25 no.4
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• pp.121-137
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• 2012

Recently Statistical literacy, reasoning, and thinking become a educational issue. Especially the important of Statistical literacy in purpose of statistics education has be discussed and come to the fore. So we research about Statistical literacy mainly with advanced researches. We consider about the definition and components of Statistical literacy which is discussed in the meantime. And we look into the purpose of statistics education in the school mathematics curriculum and discuss about the implications for the statistics education from the Statistical literacy.

• Proceedings of the KACD Conference
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• 2003.11a
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• pp.609-609
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• 2003

I. Objectives The purpose of this study was to evaluate the effect of adhesive property on microtensile bond strength and to determine the failure mode. II. Materials and Methods Flat occlusal dentin surfaces were prepared using low-speed diamond saw. The dentin was etched with 37% phosphoric acid. The following adhesives were applied to the etched dentin according to manufacturer's directions；Scotchbond Multi-Purpose in group 1, Primer＆Bond NT in group 2, Scotchbond Multi-Purpose followed by Tetric-flow in group 3. After adhesive application, a cylinder of resin-based composite was built up the occlusal surface.(omitted)

• Journal of Korean Academy of Fundamentals of Nursing
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• v.18 no.1
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• pp.79-86
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• 2011

Purpose: The purpose of this study was to investigate the relationship of fatigue and Yangsaeng in Korea. Yangsaeng as a traditional health care regimen for the promotion of health and prevention of illness by means specific principles and methods, whose purpose was to improve longevity and healthy life. Method: The subjects of this study were 196 male adults in Korea. Data were collected by using a self-reported questionnaire and analyzed through descriptive statistics, Pearson's correlation coefficient, t-test, ANOVA and multiple linear regression. Results: There was statistically significant difference in Yangsaeng and fatigue according to age and education. The relationship between Yangsaeng and fatigue had a significant negative correlation. Exercise, sleep, mind Yangsaeng were found to be significant predictors (28%) of fatigue. Conclusion: To prevent fatigue of adults, nurse should focus on the factors identified in this study when she develop nursing intervention programs for health promotion.