• 제목/요약/키워드: Historic Data

검색결과 210건 처리시간 0.021초

UPFC GTO Thyristor VTE(Valve Test Equipment) 개발 (Development of UPFC GTO Thyristor Valve Test Equipment)

  • 김수열;장병훈;윤종수;김용학;백두현
    • 전력전자학회논문지
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    • 제13권5호
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    • pp.391-395
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    • 2008
  • 한국전력공사는 강진변전소에 FACTS 설비인 80MVA UPFC를 (주)효성과 공동으로 개발하여 2003. 5월 준공하였다. 강진 UPFC는 40MVA 병렬인버터와 40MVA 직렬인버터로 구성되어 있으며, 대용량 인버터 핵심기술은 지멘스와의 기술제휴로 개발되었다. 한국전력공사는 UPFC 운영을 통하여 확보된 기술을 기반으로 제어기술을 국산화하고 있으며, 현재 유지보수용으로 GTO Thyristor 밸브 시험 장비를 개발하였다. 본 설비는 기존 수작업에 의한 GTO Thyristor 밸브의 건전성 시험을 자동화하고, 자료를 체계적으로 이력 관리함으로써, UPFC 설비의 신뢰성 향상에 도움을 줄 것으로 기대된다.

조선시대(朝鮮時代) 곤룡포(袞龍袍) 연구 (A Study on Gollyongpo in the Joseon Dynasty)

  • 금종숙;고부자
    • 복식문화연구
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    • 제16권5호
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    • pp.937-954
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    • 2008
  • The Gollyongpo was worn by the King and the Crown Prince in Joseon dynasty as an ordinary wear. The research on the Gollyongpo is focused on the historic record of Joseon dynasty, Joseonwangjosillok. This study will analyze literature, paintings and relics. First, I have researched Ming's(China) representative document daminghuidian, and excavated relics from the tomb dingling. I examined the usage and characteristic, through various remaining literature data, artifacts and paintings. The Gollyongpo was worn for the various ceremonies as well as an ordinary wear. According to the periode, the style and color had changed. The King wore the red Gollyongpo with 5 clawed dragon pattern, the Crown Prince wore black one with 4 clawed pattern, and the eldest son of the Crown Prince wore black one with 3 clawed dragon emblem. After the Daehan Empire, the Emperor wore gold outfit and the Crown Prince wore red outfit. Sonyongpo recorded in the Gungjungbalgi is concerned as Gollyongpo with narrow straight sleeve, one of the Sejong University Museum's Collection. There is some Possibility that the Gollyongpo painted in Bongsado is woven with dragon design, I would leave this matter for next research task.

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종교유적 건축물 정보의 메타데이터 구성과 온톨로지 구축 (Construction of Metadata Format and Ontology for Religious architecture heritage Information)

  • 정희선;김희순;송현숙;이명희
    • 한국도서관정보학회지
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    • 제44권1호
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    • pp.5-26
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    • 2013
  • 표준화된 메타데이터 구성은 문화유산정보의 효율적인 검색을 위해서 중요하지만 현실적으로 메타데이터는 각 객체가 속한 집단의 목적이나 자원의 속성에 따라 다양하게 표현되고 있다. 본 연구에서는 서울시 종교유적 건축물 데이터베이스 구축에 적합한 메타데이터 항목 구성을 위하여 국내외의 대표적인 문화유산정보 분야의 6종의 메타데이터 포맷을 비교하여 18개의 메타데이터 항목을 구성하였다. 종교유적 건축물 메타데이터 항목에 근거하여 서울시 소재 72개 종교유적 건축물에 대하여 건축물 부분, 스토리텔링 부분, 참고자료 및 관련 자료의 세부분으로 이루어진 데이터베이스를 구축하였다. CIDOC-CRM에 한국의 종교문화유산 정보에 필요한 항목을 추가하여 구성한 수정모형을 이용한 온톨로지를 설계하고, 수동 말뭉치 구축 프로그램을 개발하여 원문 텍스트로부터 개체명 및 이벤트를 부착하였다.

캄보디아 프놈펜의 숍하우스의 변형에 관한 연구: 공간조직적 측면에서 (Transformation of Shophouses in Phnom Penh, Cambodia: In the Aspect of Spatial Organization)

  • 얌속리;주서령
    • Human Ecology Research
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    • 제54권1호
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    • pp.13-26
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    • 2016
  • The purpose of this paper is to investigate the rationale behind the transformation process of unique shophouse spatial organization in Phnom Penh. We selected 20 representative shophouses located in the Chinese district of Phnom Penh according to construction period. A qualitative study methodology was applied and field surveys were conducted that included interviews with residents, photographs, sketches, measurements, collecting historic photos, and cataloging maps. Selected cases were analyzed in terms of: basic house data, urban block analysis, and unit analysis. Cases were then classified into two types: private courtyard shophouse (PCS) and shared courtyard shophouse (SCS). PCS refers to shophouse typology that maintains most of the characteristics of early shophouses while being transformed into a modern multi-story apartment within a limited one bay plot. However, SCS refers to shophouses adapted from the indigenous forms of PCS that evolved into a multi-storey and multi-family housing typology that includes features that might have been adapted from Western apartment buildings such as sharing a big courtyard, staircase and corridors. We conclude that shophouses in Phnom Penh have positively adopted a Western building typology, adapted it to local traditions, and finally formulated a new building type that represent indicators of a modernization process gradually accepted by society.

기하학적 문제와 펜토미노의 발명을 통한 수학 학습에서의 자료 개발 (Development of mathematical learning materials through geometric problems and the invention of pentominoes)

  • 황선욱;심상길
    • 한국수학사학회지
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    • 제20권1호
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    • pp.57-72
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    • 2007
  • 최근 수학교육에서 펜토미노와 같은 절단 퍼즐들을 학습에 많이 활용하고 있다. 그러나 이런 퍼즐들의 개발 배경과 수학적 활용 방법에 대한 연구 부족으로 수학적 개념 도입이나 문제해결을 위한 소재로서 다양하게 사용되고 있지 못한 실정이다. 이 논문은 펜토미노를 수학 학습에서 효과적으로 활용하기 위하여 펜토미노와 같은 절단 퍼즐의 배경이 되는 기하학적 문제와 펜토미노의 개발에 관한 수학사적 배경을 알아보고, 제 7차 초등학교 교육과정의 수학 교과서에서 활용할 수 있는 단원과 여러 문헌에서 펜토미노를 활동한 자료를 조사하여 체계적인 수학 학습자료를 개발하는 기초 자료와 방향을 제시하는 데 그 목적이 있다.

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소화장(昭和莊)의 주거 변용(變容)에 관한 연구 (A Study on the Transformation of Housing in Sohawjang)

  • 정미정;유재우;김동철
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2011년도 춘계학술발표대회 논문집
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    • pp.89-92
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    • 2011
  • Built in 1944, in Busan, Sohawjang has currently remained in severe state of transformation. Sohawjang is a rare case of modern housing complex in Korea and it is a significant historic building as housing history and technique history. This study is to leave the basic data about modern housing by finding the substance of Sohawjang, a unusual case of modern housing complex in Korea, and examples of housing transformation through this study. This study attempts to find the original shape and architectural history about Sohawjang, modern apartment building, and analyze the actual conditions of transformation. For implementing, this study carried out the surveys and interviews with experimental research. As the result of the study, after the independence, various cases of transformation were investigated from floor plan of Japanese middle corridor. This study classified according to types of housing by analyzing outcomes and examined the reason and characteristic of transformation. This study discovered the Sohawjang's housing transformation cases, modern housing complex, that has not been disclosed so far and draw the characteristic of transformation as the Architectural Planning.

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기후변화와 관련한 제주지역 농업용수의 효율적 활용 방안(I) (An Appropriate Utilization of Agricultural Water Resources of Jeju Island with Climate Change (I))

  • 송성호;최광준
    • 한국지하수토양환경학회지:지하수토양환경
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    • 제17권2호
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    • pp.62-70
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    • 2012
  • Rainfall, on Jeju Island varies regionally in relation to Mt. Halla with higher rainfall within southern area and lower in western area, and its variability is expected to expand according to the climate change scenario. Non-parametric trend analysis for rainfall, using both historic (1971-2010) and simulated (2011-2100) data assuming the A1B emissions scenario, shows regionally increasing trends with time. In perspective of agricultural land use, area for market garden including various crop types with high water demand is increasing over the Island, especially in the western area with lower rainfall compared to southern area. On the other hand, area for fruit including mandarin and kiwi with low water demand is widely distributed over southern and northern part having higher rainfall. These regional disparity of water demand/supply may be more affected by extreme events such as drought and heavy rainfall that has not yet been considered. Therefore, it is necessary to make policies for water resource management considering both demand and supply in different regions with climate change impacts over Jeju Island.

북한 전통의학의 시대적 발전과정 및 의료체계 (The transition and medical system of Traditional Medicine in North Korea)

  • 한창현;박선희;신미숙;최선미
    • 한국한의학연구원논문집
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    • 제13권2호통권20호
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    • pp.37-45
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    • 2007
  • Background : The 'Korean Medicine' is the traditional medicine in Korea, which has preserved its homogeneous quality in the long historic period. But since 1945 when Korea was divided, the Korean Medicine has also been independently developed in South and North Korea. As a Result, it has lost its national homogeneity. Objective : In order to illuminate the past and an actuality of the transition and medical system of traditional medicine in North Korea. Method : Overview a preceding research paper and the various data of traditional medicine in North Korea. Result : 1. The name of North Korea traditional medicine from 'East medicine' was changed history with 'Korean medicine', It with the method which combines a traditional medicine and a Western medicine is endeavoring to modernization. 2. The administrative systems which take charge of the traditional medicine of North Korea are the organization which manages the Korean medicine and the Bureau of The Korean medicine production control. Also there is relation of the Bureau of the treatment prevention. 3. There are 8 medical colleges other than P'yongyang medical college. There is 6 years 6 months and 7 years 7 month follows in curriculum. Conclusions : It evaluated the past and an actuality of the transition and medical system of traditional medicine in North Korea.

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An Al Approach with Tabu Search to solve Multi-level Knapsack Problems:Using Cycle Detection, Short-term and Long-term Memory

  • Ko, Il-Sang
    • 한국경영과학회지
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    • 제22권3호
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    • pp.37-58
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    • 1997
  • An AI approach with tabu search is designed to solve multi-level knapsack problems. The approach performs intelligent actions with memories of historic data and learning effect. These action are developed ont only by observing the attributes of the optimal solution, the solution space, and its corresponding path to the optimal, but also by applying human intelligence, experience, and intuition with respect to the search strategies. The approach intensifies, or diversifies the search process appropriately in time and space. In order to create a good neighborhood structure, this approach uses two powerful choice rules that emphasize the impact of candidate variables on the current solution with respect to their profit contribution. "Pseudo moves", similar to "aspirations", support these choice rules during the evaluation process. For the purpose of visiting as many relevant points as possible, strategic oscillation between feasible and infeasible solutions around the boundary is applied. To avoid redundant moves, short-term (tabu-lists), intemediate-term (cycle-detection), and long-term (recording frequency and significant solutions for diversfication) memories are used. Test results show that among the 45 generated problems (these problems pose significant or insurmountable challenges to exact methods) the approach produces the optimal solutions in 39 cases.lutions in 39 cases.

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해일/범람에 따른 해안 매립지의 취약성 (The Vulnerability of the Reclaimed Seashore Land Attendant Upon Storm Surge/Coastal Inundation)

  • 강태순;문승록;남수용;심재설
    • 한국해양공학회지
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    • 제24권1호
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    • pp.68-75
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    • 2010
  • Recently, the intensity and frequency of typhoons have been on the increase due to unusual weather phenomena and climate change. In particular, on September 13, 2003, typhoon MAEMI (0314) caused heavy damage in the provinces of Busan and Gyongnam, but also provided an opportunity to perform a variety of studies on storm surge. According to investigation reports on the damage resulting from typhoon MAEMI, the areas where coastal inundation occurred were located in reclaimed land under coastal development. In this study, through an image data analysis of historic and present day typhoons affecting Masan, we found that the inundation damage areas corresponded to reclaimed lands. Therefore, using the area around Busan, including the southeastern coast of Korea where typhoons lead to an increased storm surge risk, we performed a storm surge/inundation simulation, and examined the inundation effect on reclaimed land due to the intensified typhoons predicted for the future by climate change scenarios.