같은 값이면 다홍치마

李祐鍾 대한사립학교장회(구 대한사립중고등학교장회) 1982 私學 Vol.21 No.-

A Supercapacitor Remaining Energy Control Method for Smoothing a Fluctuating Renewable Energy Power

이우종,차한주 대한전기학회 2015 Journal of Electrical Engineering & Technology Vol.10 No.1

This paper proposes a control method for maintaining the energy level for asupercapacitor energy storage system coupled with a wind generator to stabilize wind power output. Although wind power is green and clean energy source, disadvantage of the renewable energy outputpower is fluctuation. In order to mitigate the fluctuating output power, supercapacitor energy storagesystem (SCESS) and wind power simulator is developed. A remaining energy supercapacitor (RESC)control is introduced and analyzed to smooth for short-term fluctuating power and maintain thesupercapacitor voltage within the designed operating range in the steady as well as transient state. When the average and fluctuating component of power increases instantaneously, the RESCcompensates fluctuating power and the variation of fluctuating power is reduced 100% to 30% at 5kWpower. Furthermore, supercapacitor voltage is maintained within the operating voltage range and near50% of total energy. Feasibility of SCESS with RESC control is verified through simulation andexperiment.

상악동에 발생한 우상암종 1례

이우종,이강대,제갈제환,유태현 대한이비인후과학회 1997 대한이비인후과학회지 두경부외과학 Vol.40 No.9

Personnel is Policy: Labor Investment Efficiency and Firm Value

이우종,유경화 한국회계학회 2017 會計學硏究 Vol.42 No.2

Labor is an essential factor of production. Like many other emerging markets, Korean economy has been developed with heavy reliance on labor over the past few decades, and therefore efficient investment in labor has been of primary interest to Korean companies. We investigate whether and to what extent the labor investment efficiency contributes to firm value in Korea. Following prior studies, we construct an empirical proxy for labor investment efficiency - abnormal changes in the number of employees which deviates from the fitted value based on firm fundamentals. We then find that more deviation from the optimal labor investment is related to lower future operating performance and higher external financing costs (i.e., required rates of returns). We further document that long-term stock performance decreases as the deviation from the optimal labor investment increases. Our results remain unchanged with a battery of robustness checks such as controlling for capital investment efficiency, addressing endogeneity concerns, or using alternative measures of labor investment efficiency. In sum, our results collectively indicate that investment efficiency in human resources indeed significant contributes to firm value.

새로운 지방분권화 시대를 맞이하며

이우종 대한지방행정공제회 2018 도시문제 Vol.53 No.590

도시계획과 공중위생

이우종 대한국토·도시계획학회 2020 도시정보 Vol.- No.457

Architectural Design of Wooden Building during the 15th century: Legacy and Beginning

이우종 한국학중앙연구원 한국학중앙연구원 2019 THE REVIEW OF KOREAN STUDIES Vol.22 No.1

This paper analyzes characteristics of architectural design of existing wooden architecture built in the 15th century, focusing on its joints and decorations of framing components and their positions. Representative buildings of the first and second half of the 15th century were considered respectively. This study focuses on interpreting architectural characteristics inherited or changed from the late Goryeo dynasty and those settled as main features of architectural design during the Joseon dynasty period and scrutinizing the rationale behind the emergence and transformation of these features. Two buildings discussed in this paper inherited and developed the traditional orders of two bracketing styles, the simple-bracketing style and the multi-bracketing style, while adopting each other’s trimming techniques and some decoration features. These transformations appeared in soeseo decoration techniques, roof structure supporting system, and integration of framing components. Also, their recessed canopies attested how the visual impression of the multi-bracketing style was dominant. On the other hand, buildings of the late 15th century display changes such as the expansion of soeseo-decorated parts and differentiation of the elevations or smaller sections through flexible utilization of original orders and the transformations appeared in two bracketing styles during the early 15th century. This transition period can be read as the preliminary phase of independent simple-bracketing style and multi-bracketing style being converged after the mid-Joseon dynasty period. These two bracketing styles began to be situated harmoniously within one whole boundary of the Joseon architecture, only being differentiated in its hierarchy.

새정부에 바라는 도시정책방향 도시정보전문가가 새정부에 바라는 도시정책방향

이우종 대한지방행정공제회 1998 도시문제 Vol.33 No.354

N/A

단층 불전 내주의 결구 및 배열방식에 관한 연구

李雨鍾,田鳳熙 국립문화재연구원 2000 헤리티지:역사와 과학 Vol.33 No.-

This study aims to classify the framework and arrangement of interior columns(Naeju) which are used in single-story Buddhist halls into several types, and to develop a theory on the process of changes among those types. Since interior columns are building material which hold up the roof structure and make partition in the interior space of halls, their framework and arrangement is closely linked to the development of building technology and expected to reflect new architectural needs. The kinds of interior column classified by the shape of framework are goju,chaduju,oepyonju,naepyonju. The arrangement of interior columns can be classified by two methods: One which counts the number of the interior columns can be classified by two methods: One which counts the number of the interior column arrangements in a hall, and the other whose classification of these classifications, we can divide the framework and arrangement of interior columns into 8 types From the remains of Korean and Chinese Architecture, we can presume that before the late Goryo period, jeongchibup had only been applied in the construction of Buddist halls, and gamji(column reducing) had only been used in examples of small scale. After the founding of Choseon Kingdom, however, national policy had weakened the economic power of Buddhist temples. Because of that, large-scale outdoor Buddhist mass was replaced by small-scale indoor mass, and for this reason, though the scale of Buddhist halls became smaller, the need for a broad interior space became stronger. Thus in early-Choseon period, reduction of interior columns became widely spread. Those type of framework and arrangement of interior columns where yijubup was applied were developed because the rear interior columns arrangements, in order to wxpand the interior space, have moved backward. Among these types, yiju-goju and yiju-chaduju were developed for the Buddhist halls with paljak roof(hipped-gabled roof), where the load of their side eaves caused structural problems at the side walls. And oepyonju type was for the small-scale and middle-scale Buddhist halls which needed more interior space but didn't want the extension of roof structure. From the local and periodic distribution of each types, we can conclude that the jwongchi-goju, jeongchi-chaduju and yiju-chaduju have been settled as typical technique of local carpenters. Oepyonju was developed later than the other types, but for its merit of low cost, it became a popular type across the nation.

역사.문화자원 정보시스템을 활용한 관광코스 개발 방안에 관한 연구

이우종 한국공간정보학회 2000 한국공간정보학회지 Vol.8 No.2

최근 들어 관광산업은 지역경제의 활성화, 도시환경의 정비 등 장소마케팅의 일환으로 그 영역이 더욱 확대되고 있는 추세이다. 그러나 국내의 경우, 특정시설을 위주로 한 단일기능적 접근방식에 의해 관광객의 주목을 유발할 수 있는 다양한 관광코스 개발이 이루어지지 못하고 있으며, 이로인해 상대적으로 관광 경쟁력이 확보되지 못한 실정에 있다. 이러한 문제점을 해결하고자 본 연구에서는 역사·문화 관광자원의 데이터베이스 구축과 이를 활성한 관광코스 개발방안을 강릉시의 사례를 중심으로 모색해 보았다. 역사·문화자원을 비롯한 여러 관광자원, 관광지원시설에 대한 정보시스템이 구축되면, 일차적으로 자원의 관리상태, 유형, 가치, 숙박가능 지역, 접근성 등을 고려하여 최적의 관광코스를 개발할 수 있다. 또한 향후 인터넷을 통한 관광서비스의 제공을 비롯한 교육, 자원의 관리 등 많은 영역에서 그 활용도가 매우 높다고 할 수 있다. Recently, tourism industry is on the trend of expanding its activity arena, boosted by revitalization of regional economy and reorganization of urban environment, undertaken for the purpose of place marketing. However, Korea has not been able to develop a variety of tourism itineraries that can attract the interest of tourists because most tourism resources are isolated with single function. This constraint has prevented tourism industry in Korea from attaining competitiveness. In attempting to overcome this constraint, this study seeks to develop tourism itineraries by constructing and utilizing database on historical and cultural tourism resources based on the case of Kangneung City. Through the construction of information system on historical and cultural resources and tourism support facilities, optimal tourism itineraries that take into account maintenance conditions, types, values, lodging availabilities and accessibility of tourism resource areas can be developed. Moreover, it is expected that this information system will have a high level of usage in the future, for it can provide a wide range of tourism services on the internet and education materials as well as facilitate resources management.