• Journal of the Korea Fashion and Costume Design Association
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• v.1 no.1
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• pp.35-51
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• 1999

This study was aimed to analyze how images of information society were embodied in contemporary fashion design. To find out images of information society expressed in contemporary fashion design, this paper reviewed the characteristics of information society, and, found out six categories of contemporary fashion design in which the information society was expressed. Cyber environment causes techno style clothing which is characterized by the metallic or lustrous material and mechanical message. And interest in new materials increased significantly. Time-space compression makes the meaning of time and space change, therefore the past, present and future are coexist in the contemporary fashion design. The boundaries has loosed, so, heterogeneous materials and colors are used in fashion design all together. Variety and plurality affect expression of individuality and self-concept. Flexibility increased, so, soft and pliable clothing increased, too. Finally, quality of life is considered as more important value than quantity, so, luxurious look and zen style appear. Also, minimalism which is characterized as simplicity and purity affects the contemporary fashion design.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.13-18
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• 2002

Foreign construction requires the globalization of management structure and role execution as a global manager. Therefore, this paper prospects the light and shadow of Korea construction business with the consideration about the foreign construction market and Korea's foreign construction. This paper interprets meaning about the foreign construction and analyzes the distinction, strategy, and competitive factor of foreign construction business. On the basis of interpretation and analysis, this paper suggests the innovative change of the domestic construction business manager and management system.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.9 no.1
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• pp.53-59
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• 2000

Recently air pollution is increased according to increase of vehicle. So many countries are studying about compressed natural gas engine. Research on the development of CNG dedicated engine that has important meaning both as a clean fuel and an alterna-tive energy to reduce the exhaust emission from diesel engine are actively going on these days. In this study the character-istics of CNG engine was investigated and the engine performance experimented by changing the parameters such as boost pressure. The CNG engine performance and exhaust emission were measured by engine performance mode at maximum load condition with increasing the rpm in the range of 1,000-2,200rpm. The exhaust emission was also measured at D-13 mode and compared to the emission regulation.

• Journal of the Korea Furniture Society
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• v.21 no.2
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• pp.196-204
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• 2010

This study focuses on wardrobes to examine how the terms have been changed by comparing traditional Korean furniture in Chosun Dynasty and contemporary furniture since the traditional furniture terms and forms have been changed like our life culture. For chests and wardrobes, approximately 26 terms were used in Chosun Dynasty. However, only five of them are currently used for top panels, hinges, drawers, mirrors, and columns. For bedroom cabinets, 27 terms are used and 4 of them are changed with the same meaning. The change of the terminology results from the life culture mostly. While the Chosun Dynasty furniture terms were mostly presented as the Korean and Chinese language, in the contemporary furniture ones Korean and Chinese together with English are used. The English terms' usage results from hardwares imported from overseas. The terms derived from the three different languages are presented not only in the wardrobes but also other pieces generally.

• School Mathematics
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• v.1 no.1
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• pp.19-37
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• 1999

In this study, we examined some matters related to the learning of variable concept in school mathematics on the basis of the theoretical foundation from the previous studies(e.g. Davis, 1975; Rosnick, 1981; IK chemann, 1981; Wagner, 1983.) and practices on variable concept teaching by evaluating the current state of that. Matters be discussed are as follows; the use of symbol for place holders in elementary mathematics, the dealing with sets those elements are literals and operations of such sets, the teaching of dummy variable, the construction of literal expressions that contains variables, the labeling indeterminates as a constant, the change in the exact meaning of variable according to the function concept, the teaching of a generalization by means of variables. After considering on these matters that are connected with the teaching-learning of variable concept, we suggested the alternative proposal to the current state of variable concept teaching.

• Transactions of the Korean Society of Automotive Engineers
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• v.18 no.3
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• pp.8-18
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• 2010

According to the needs of change to hybrid, fuel cell and electric vehicle, and to the increasing demand for safety and eco-friendliness, the necessity of Electro-Mechanical Brake(EMB) is being increased. But, one of the most important problems for realizing EMB to the practical use is that the required motor power for braking is too high. So the high braking efficient EMB is required. In recent years, the Electronic Wedge Brake(EWB) is noticeable for the high braking efficiency. In this research, we examine the improvable matter of the recent published EWB, and we propose the improved mechanism and the cost effective control method using this mechanism. And we test these feasibility by experiment and discuss these meaning and effect.

• Tribology and Lubricants
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• v.30 no.1
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• pp.46-51
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• 2014

In this study, we attempted to characterize the physical meaning of the design parameters used for automobile passive dampers by considering the slit, disc, and hole, which influence the pressure characteristics. We also analyzed the change in the pressure characteristics when mixing various slits and discs. Finally, we used a computer simulation to implement lag according to nitrogen gas and analyzed the dependence of frequency on the nitrogen gas pressure.

• 제어로봇시스템학회:학술대회논문집
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• 1987.10a
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• pp.836-841
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• 1987

Many kinds of conditioning monitoring technique have been studied, so this study has investigated the possibility of checking the trend in the fault diagnosis of ball bearing, one of the elements of rotating machine, by applying the cepstral analysis method using the adaptive noise cancelling (ANC) method. And computer simulation is conducted in oder to identify obviously the physical meaning of ANC. The optimal adaptation gain in adaptive filter is estimated, the performance of ANC according to the change of the signal to noise ratio and convergence of LMS algorithm is considered by simulation. It is verified that cepstral analysis using ANC method is more effective than the conventional cepstral analysis method in bearing fault diagnosis.

• Journal of Institute of Control, Robotics and Systems
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• v.15 no.10
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• pp.967-973
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• 2009

The model matching problem of asynchronous sequential machines is to design a corrective controller such that the stable-state behavior of the closed-loop system matches that of a prescribed model. In this paper, we address model matching when the external input set consists of controllable inputs and uncontrollable ones. Like in the frame of supervisory control of Discrete-Event Systems (DES), uncontrollable inputs cannot be disabled and must be transmitted to the plant without any change. We postulate necessary and sufficient conditions for the existence of a corrective controller that solves model matching despite the influence of uncontrollable events. Whenever a controller exists, the algorithm for its design is outlined. To illustrate the physical meaning of the proposed problem, the closed-loop system of an asynchronous machine with the proposed control scheme is implemented in VHDL code.

• Journal of the Korean housing association
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• v.10 no.4
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• pp.101-109
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• 1999

The Japanese style official residence were built by Chosun bank during the Japanese colonial period. The purpose of this study is to find out the architectural meanings of Chosun bank's official residence, its influences on Korean modem dwellings through trace of the original form and actual survey on the residence. We could understand influences of the rationality, also through the process of prototype's transformation and maintenance's change, we can know that the residence's modernizing process don't have the inflow onesidedly but the process of the collision and the assimilation to the differences between the residential sense and one's culture.