• Proceedings of the Korean Institute of Building Construction Conference
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• 2011.11a
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• pp.65-67
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• 2011

It is necessary to the development of the best maintenance system for applying the long-term maintenance plan using the cost breakdown structure in the educational facilities. This study developed the cost breakdown structure for the best maintenance system using the delphi method. For the convenience of maintenance, the maintenance cost breakdown structures are separated into building exterior wall, building inside wall, electric installation, heating installation and outdoor facilities. And these results atomized in each parts. And this study constructed the cost breakdown structure to maintenance's practicality and effectiveness through the expert analysis.

• The Transactions of the Korean Institute of Electrical Engineers A
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• v.49 no.8
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• pp.380-389
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• 2000

This paper presents a method for the regional long-term load forecasting in metropolitan area considering econimic indicator with the assumption that energy demands propoprtionally increases under the economic indicators. For the accurate load forecasting, it is very important to scrutinize the correlation among the regional electric power demands, economic indicator and other characteristics because load forecasting results may vary depending on many different factors such as electric power demands, gross products, social trend and so on. Three steps for the regional long-term load forecasting are microscopically and macroscopically used for the regional long -term load forecasting in order to increase the accuracy and practicality of the results.

• Proceedings of the KIEE Conference
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• 1999.07c
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• pp.1104-1107
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• 1999

A new technique using search method based on fuzzy multi-criteria function is proposed fur flexible generator maintenance scheduling. Minimization of probabilistic production cost, maximization of system reliability level and air pollution are considered fur fuzzy multi-criteria function. To obtain an optimal solution for generator maintenance scheduling under fuzzy environment fuzzy multi-criteria relaxation method(fuzzy search method) is used. The practicality and effectiveness of the proposed approach are demonstrated by the simulation results of the real size model system of KEPCO-1997 SYSTEM.

• Proceedings of the KIEE Conference
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• 1993.11a
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• pp.6-8
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• 1993

Short Circuit analysis is one of the most fundamental procedures for power system analysis problem. In order 10 solve the problem, In order to solve the problem, it's required to develop an advanced algorithm by which modified bus admittance matrix are easily computed for a large number of alternative network configuration. This paper proposes a new calculation method to efficiently modify the bus impedance matrix elements of large power system by method for removal of link, and presents its Practicality by applying the proposed method in the power system model.

• International Journal of Ocean Engineering and Technology Speciallssue:Selected Papers
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• v.4 no.1
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• pp.31-37
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• 2001

In this paper, an integrated damage identification system (IDIS) is proposed to locate and size damage in real structures. The application of the IDIS to real structures includes the measurement of modal responses, the construction of damage-detection models, and the implementation of measurements and models into the damage-detection process. Firstly, the theory of the damage identification method is outlined. Secondly, the schematic and each component of the IDIS are described. Finally, the practicality of the IDIS is verified from experiments on two different bridge-models, a model plate-grider and a model truss.

• Culinary science and hospitality research
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• v.7 no.1
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• pp.181-202
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• 2001

Recently there is growing concern regarding the service industry in Korea, especially the food service industry. The form of food service industry has become larger and speciallized by means of either implementing marketing programme in individual companies or the entrepreneurs' possesstion of chain stores. As the food service industry has extended throughout the whole of Korea, It has contributed enormously to the regional economy. These phenomena is based on the following facts; the increase in income level, the fast economy growth and change, rapid reform of social structure, and the change in status of the labor population. To meet these changes and reforms the food service industry in Korea has to form a new ideology that takes into account the interaction with globalization, the phenomena of instant-food consumption habit, a general increase in the those who eat-out, the two faces of luxury, and the blending of domestic extravagance and practicality, especially the influence of imported brands on advance technology and system utility on the economic section and style as a whole.

• Fashion & Textile Research Journal
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• v.5 no.1
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• pp.59-63
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• 2003

This study aims at developing of textile design expressed not only Korean natural image but also modern sensibility using fabrics dyed by tie dyeing with various natural dyes. And it attempts to practicality of high value-added goods revived traditional beauty. With the aqueous extract of various natural dyes, i.e., indigo, amur cock tree, onion's peel, citrus peel, mugwort, gromwell, sappan wood silk fabrics dyed by tie dyeing. Also various color changes were examined by mordants, i.e., aluminium sulfate, cupric acetate mono hydrate, ferrous chloride. With these fabrics, I made works using the techniques of applique, mola, fabric's connection and weaving. I think the developed textile design gave expression to natural image of Korean nation.

• The Journal of Korean Medical History
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• v.21 no.1
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• pp.37-45
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• 2008

Correlations between "The Book of Changes" and medicine originate from the first publication of the book. Korean Traditional Medicine is no exception in following this tendency of making connections between the two fields. A Chinese medical text, "의학정전" is the most frequently cited text in a Korean medical text "Euirimchalyo". Upon examining the two texts focusing on the 종창, 임폐문 that discusses 비괘, it could be seen that Euirimchalyo edited out the philosophical contents of 의학정전 as much as possible. Thus, on examination of the text, it can be concluded that 의림촬요 takes no part in the Korean history of medical philosophy. This indicates that 의림촬요 is a medical text that purses practicality and efficiency though selectively summarizing.

• Journal of Mechanical Science and Technology
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• v.15 no.7
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• pp.866-875
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• 2001

The complex modal testing methods developed for asymmetric rotors are briefly discussed and their performances are experimentally evaluated. For the experiments, a laboratory test rotor is excited by using a newly developed, cost effective magnetic exciter equipped with Hall sensors, which measure the excitation forces. It is concluded that the exciter system is characterized by a wide bandwidth and a high resolution for both the excitation and force measurement, and that the one-exciter/two-sensor technique for complex modal testing of asymmetric rotors is superior to the standard two-exciter/two-sensor technique in terms of practicality and realization.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.8 no.3
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• pp.52-58
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• 1999

In this study, the growth-strain method was used for shape optimization. The adequate value of growth ratio in the method was used the value obtained by volume control. And the linear PID control theory was applied to control internal stresses by stresses required by a designer. The effect of the values of $K_{P}$, $K_{I}$, and $K_{D}$ was investigated and the adequate values of $K_{P}$, $K_{I}$, and $K_{D}$ were determined empirically. Finally, a shape optimal design system was built up by the improved the growth-strain method with a commercial software I-DEAS. The effectiveness and practicality of the developed shape optimal design system was verified by some examples.les.les.les.