• Communications for Statistical Applications and Methods
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• v.9 no.3
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• pp.725-732
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• 2002

P-values are often perceived as measurements of degree of compatibility between the current data and the hypothesized model. In this paper, a new concept of Bayesian p-values is proposed and studied under the non-informative prior distributions, which can be thought as the Bayesian counterparts of the classical p-values in the sense of using the concept of significance level. The performances of the proposed Bayesian p-values are compared with those of the classical p-values through several examples.

• Journal of the Korean Professional Engineers Association
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• v.32 no.6
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• pp.35-39
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• 1999

Many tools in classical type for the production management have been used in industrial cells. In spite of their powerful logic and historical success, many appliers could not take but a little effectiveness in current economic conditions. The major reason is that the chronical production control methods are too narrow in its applicability to cover the problems occurred under such a high-speed changes. Therefore we need to develop the new concept of production management for the higher adaptability and outcome which can support vitablities to enterprises in severe condition. The essential points in changing the viewpoint of new production management concepts are valuable to the group of new management.

• KIEAE Journal
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• v.5 no.2
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• pp.43-49
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• 2005

The purpose of this study is to analyze the form and space of superstructure and to present the characteristics of design innovation and space planning in cruise ships. The exterior design styling and interior space design are induced on the important design concept in cruise ships. The scale and structural daring of the past mega ship and next generation concept is being injected into the current cruise ship design.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2003.11a
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• pp.160-169
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• 2003

Pantograph of high speed rolling stock is one of the key components that transfer of associated technologies was blocked fundamentally from advanced nations. In this study, main technologies related to development of prototype pantograph installed on prototype test train developed according to the project "Development of high speed railway technology" are presented. Status of current korean technologies is explained by presenting developed technologies and applications during the past 6 years from concept design to test and evaluation.

• Journal of Engineering Education Research
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• v.16 no.5
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• pp.36-42
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• 2013

This paper explores the concept and historic context of appropriate technology to provide the academic community with better understanding, insights, current trends, and finally, implications for engineering education. To do that, a rigorous literature survey has been carried out. The result supports that the appropriate technology concept will meet present tasks of engineering education, which calls on policy development and further studies.

• Proceedings of the CALSEC Conference
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• 1999.11a
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• pp.85-92
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• 1999

The current R＆B system has a lot of problems caused by complexity of the system and lack of IDE concept among the related offices and organizations. IDE concept is building Integrated database with data which applied standards and digitalized. So R＆D CALS system should be established for the related offices and organizations can use data which created during R＆D life-cycle in IDE. In this paper, I suggested system requirements and system quality factors for building IDE based upon SSS form.

• Cross-Cultural Studies
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• v.30
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• pp.245-258
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• 2013

This paper analyzes the current Chinese prepositions that represent space and time, which ultimately indicate the concept of Direction. having this in mind, the concept of time that the prepositional phrases 'qian+Tn' and 'Tn+qian' possess can be understood by analyzing the prepositions that 'qian' to make time expressions. also, this paper establishes a systemic framework that will help not only students but also professors to use the preposition 'qian' in order to make correct time expressions.

• Journal of Power Electronics
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• v.6 no.4
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• pp.298-306
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• 2006

A high efficiency and low cost sustain driver for a plasma display panel (PDP) utilizing a current pumping method is proposed. The main concept of the proposed circuit is using the current source to charge and discharge the panel. As a result, all power switches can achieve zero voltage switching (ZVS) and every auxiliary switch can also achieve zero current switching (ZCS). Since the inductor current can compensate for the discharge current, the current stress of all the power switches can be reduced considerably. Furthermore, it has features such as a simpler structure, less mass, lower cost, and lower electromagnetic interference than in previous circuits.

• Proceedings of the KIEE Conference
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• 2002.07b
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• pp.735-737
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• 2002

A current transformer for measuring current in high power testing laboratory is exactly proportional to the current including D.C component due to electrical transient. But, current transformer isn't designed to consider D.C component, therefore when data acquisition system measure that current. the error is increased because of saturation of core. This paper describe the concept of transient factor and how to design the current transformer.

• Journal of Aerospace System Engineering
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• v.2 no.3
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• pp.24-28
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• 2008

Eddy current are induced when a nonmagnetic, conductive material is moving as the result of being subjected to the magnetic field, or if it is placed in a time-varying magnetic field. These currents circulate in the conductive material and are dissipated, causing a repulsive force between the magnet and conductor. Using this concept, eddy current damping can be used as a form of viscous damping. This paper investigated analytically and experimentally the characteristics of an eddy current damping when a permanent magnet is placed in a conductive tube. The theoretical model of the eddy current damping is developed from electromagnetics and is verified from Maxwell program and experiments. From these comparisons, although predictability is not accurate at high excitation frequencies, the present model can be used to predict damping force at low excitation frequencies. In order to improve the prediction of the characteristics of an eddy current damping, the induced magnetic flux densities have to be considered in following researches.