• 전자공학회논문지B
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• 제32B권12호
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• pp.1545-1551
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• 1995

As the modern industrial processes become more complex, it is getting more difficult to model and control the processes. Naturally, an advanced type of DCS(Distributed Control System) with higher level functions is being sought. Advanced DCS is a DCS with advanced functions such as fault diagnosis, GPC(Generalized Predictive Control), NN(Neural Network), and Fuzzy Control. In this thesis, we have studied a fuzzy control algorithm for realizing an advanced DCS. Its algorithm is implemented in a form of function code which is a process control language, being used by the industrial engineers. To verify the realized function code of the fuzzy control, the function code is applied to a continuous casting process of the Pohang Iron & Steel Works in Kwangyang. The rules of the fuzzy control were collected via interviews of the field operators and their operation documents. Finally under a real-time operating system environment, usability of the function code of the fuzzy control is shown via simulation for the continuous casting process.

• 한국재료학회지
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• 제15권10호
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• pp.662-666
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• 2005

Solid solutions of $(Zr/Ti)O_2$ were prepared in powder form by the coprecipitation technique. After mixing with carbon or exposing to nitrogen gas at elevated temperature, titanium cations selectively diffused out from the oxide compound to form titanium carbide (TiC) or titanium nitride (TiN), respectively. TiN formed strong interfacial contacts between the oxide grains. In contrast, TiC formed as small crystallites on oxide grains but did not bind the matrix grains together. TiN therefore played a role in strengthening the interparticle bonding, but TiC weakened the bonding between grains. Partial diffusion of titanium cations also led to nanolayered structure being formed between the oxide grains, which provided weak interfacial layers that fractured in a step-wise fashion.

• 대한치과의사협회지
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• 제18권6호통권135호
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• pp.467-470
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• 1980

An experimental study was performed to observe the epithelial-mesenchymal interacion in the developing odontogenic tissue of 10-18 days rat embryos. Several results were obtained with the histochemical study of this experimentss. 1. Through invagination of dental lamina, P A S mucicarmine staining of middle and basal cells was shown to have weak reaction. but in mesenchymal cells, these staining was reacted with diffus form. 2. In accordance with the differentiation of enamel organ, these odontogenic tissue was being to form mesenchymal condensation, it was alse shown that the intermesenchymal cell was stained deeply with colloidal iron and alcian blue.

• 대한치과의사협회지
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• 제55권4호
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• pp.284-294
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• 2017

Recently, education is regarded as a service item and university education services are being exported abroad. In the form of educational export operations, export of educational contents and curriculum, specific consultancy projects for foreign institutes, installation of local educational facilities, or attracting foreign students are being carried out. Korea has the potential and competitiveness to export dental education. The advantages of Korea's dental education services, such as dental equipment and materials, excellent education programs, and high-quality human resources, will enable the export of education services in various ways. Establishment of educational infrastructure and educational programs for overseas dental students, export of educational consulting items, clinical training programs for foreign dentists abroad, invitation for international clinical workshops, dispatch of faculty members, exchange student programs can be considered as exporting dental education service items. Therefore, in a long-term perspective, it is necessary to establish differential and appropriate educational export plans.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 춘계학술대회 논문집
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• pp.806-812
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• 2008

Many kinds of rolling-stocks that have various control methods are being operated by Seoulmetro which is a history of a city railroad rolling-stock. Seoulmetro is being faced with a wheel management comparing of other lines with a perpendicular wear of wheel and a side damage, and so on, by operating several cars at a loop line. This is causing maintenance expenses increase and deteriorating a fusibility of rolling-stock, for it has an effect on a rolling-stock using. A cutting pattern of wheel and a wear form affect the expected span of a wheel. A wheel cutting cause is classifed into cutting for reprofiling of a flange wear of wheel and for removing every kind defect which originates from wheel wear. In this study, Seoulmetro exhibit a stable rolling-stock use method and a reasonable management method of wheel, analysing wheel exchange condition and cutting management of wheel.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1995년도 하계학술대회 논문집 B
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• pp.995-998
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• 1995

As the modern industrial processes become more complex, it is getting more difficult to model and control the processes. Naturally, an advanced type of DCS(Distributed Control System) with higher level functions is being sought Advanced DCS is a DCS with advanced functions such as fault diagnosis, GPC(Generalized Predictive Control), NN(Neural Network), and Fuzzy Control. In this thesis, we have studied a fuzzy control algorithm for realizing an advanced DCS. Its algorithm is implemented in a form of function code which is a process control language, being used by the industrial engineers. To verify the realized function code of the fuzzy control, the function code is applied to a continuous casting process of the Pohang Iron & Steel Works in Kwangyang. The rules of the fuzzy control were collected via interviews of the field operators and their operation documents. Finally, usability of the function code of the fuzzy control is shown via simulation for the continuous casting process model.

• 대한화학회지
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• 제5권1호
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• pp.80-83
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• 1961

Solution of the diffusion problem applicable to steady state reduction at the ideal streaming mercury electrode are presented, with special attention being given to the influence of stream contraction caused by the gravity. To eliminate the convection occurring in the layer between the streaming mercury and the electrolytic solution, a new method have been invented, in this case the solution being tested was streamed with same velocity of the streaming mercury. Experiment have been made in order to compare the experimental value with the theoretical value and the experimental diffusion current was approached more to the theoretical value than the value obtained by earlier form of the streaming mercury electrode used by Heyrovsky.

• 교육시설
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• 제7권3호
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• pp.15-22
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• 2000

The purpose of this study is to grasp a concept for mixed-use tendency of educational facilities, its propellant circumstance in the nation and japan, to analyze a feature of a function, a flow planing of user and the complex form which appear from an instance of the mixed-use tendentious educational facilities and is to suggest a basic matter on the architectural planning for mixed-use tendency of the regional facilities and educational facilities. The results of the study can be summarized were as follow: 1) The step of mixed-use in nation is yet the early step and a extremely feeble to compared with the japan. 2) In a case of the mixed-use tendency facility, the nation is to appear for the necessity of a region but they know of a varied facility to be mixed-use tendency in japan. 3) Much to appear monolithic form in the side of complex form. 4) To appear multi-story in the side of facility-story. 5) It is much example of separating from main entrance, the flow of interior found of dividing into not to transit or transit by the function of facility. 6) To know for being tendency of common and division by the principal of user in facility instituting E V.

• 한국농촌건축학회논문집
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• 제10권4호
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• pp.33-40
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• 2008

This paper aims to clarify the spatial form and functional transition of Korean traditional shop house in Maehwa marketplace, Uljin. The general form of Korean traditional shop house of Maehwa marketplace was the timbered house of the tin roof built in the 1960s. As the scale of a building being comparatively small-scale, building area is $60m^2$ and the yard was mainly made behind the building. When the spatial form of Korean traditional shop house is considered, the composition of 4 by 2 is most. And in the front of a building, the shop is located, and when the back of a building prepares a residence, integration of a sales function and a habitation function is seen. The shop of Korean traditional shop house is converted into living space by change of the function, and the position is the middle of a front of building. This is considered as what inherited the Korean lifestyle. And the last, Although it is not different from the appearance of the shop house of other areas, since there are few grades of the change in comparison, the extension situation of Korean traditional shop house is recognized as an example important for future research.

• 영어영문학
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• 제55권6호
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• pp.937-959
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• 2009

The Queen of the Air, John Ruskin-s highly elliptical publication of 1869, elaborates a complex mythology as a way of responding to the prevalence of scientific thinking, widespread environmental degradation, the pernicious effects of political economy, and mechanistic labor. Benjamin-s desire to rescue human experience from prevailing scientific conceptions is reminiscent of Ruskin-s fear that the peculiar power that shapes the unities of the natural world is simultaneously being "beaten down by the philosophers into a metal or evolved by them into a gas" and obscured by the dreams and theories of philosophers and theologians. As a critic remarks, in Benjamin-s-and, we would add, Ruskin-s-view, "what the modern era lacked was a basis for continuity which would prevent experience from disintegrating into a desultory and meaningless series of events." Despite its frenetic hyper-associativity, then, The Queen of the Air contains a key element that Benjamin believes is necessary for "redemption": the desire for a new form of consciousness that recognizes links to the past and thus to the longings and dreams of our forebears. Thus, although Ruskin most immediately influences Proust, who in turn influences Benjamin, Benjamin-s thought is far more Ruskinian than critics have heretofore observed. Just as Benjamin helps us make sense of the ways in which The Queen of the Air is caught in the grip of the shocking associativity of modern life, so Ruskin assists us in discerning similar impulses in Benjamin-s attraction to a form of archaic consciousness that can, by altering the modern form of perception, reenchant the present.