고전압 Power IC 집적을 위한 4H-SiC CMOS 신뢰성 연구

강연주,나재엽,김광수 한국전기전자학회 2022 전기전자학회논문지 Vol.26 No.1

In this paper, we studied 4H-SiC CMOS that can be integrated with high-voltage SiC power devices. Afterdesigning the CMOS on a 4H-SiC substrate, we compared the electrical characteristics with the reliability of hightemperature operation by TCAD simulation. In particular, it was confirmed that changing HfO2 as the gatedielectric for reliable operation at high temperatures improves the thermal properties compared to SiO2. Byresearching SiC CMOS devices, we can integrate high-power SiC power devices with SiC CMOS for excellentperformance in terms of efficiency and cost of high-power systems. 본 논문에서는 고전압 SiC Power 소자와 집적이 가능한 4H-SiC CMOS에 대해 연구하였다. SiC CMOS 소자 연구를 통해 고출력 SiC Power 소자와 함께 제작을 가능하게 함으로써 SiC 전력소자를 이용하는 고출력 시스템의 효율 및 비용면에서 우수한 성능을 기대할 수 있다. 따라서 4H-SiC 기판에서 CMOS를 설계한 후 TCAD 시뮬레이션을 통해 전기적 특성 및 고온 동작 신뢰성을비교하였다. 특히 높은 온도에서 신뢰성 있는 동작을 위해 gate dielectric으로 HfO2를 변경함으로써 SiO2보다 열적 특성이 개선됨을 확인하였다.

『우리꽃 답사기』를 읽고

강연주 숲과 문화 연구회 2011 숲과 문화 Vol.20 No.1

「도시미화법」을 통해 본 김정은 체제 도시공간정책 의 변화 양상에 관한 연구

강연주,권영상 한국도시설계학회 2019 도시설계 : 한국도시설계학회지 Vol.20 No.6

Kim Jong-un’s regime emphasizes the construction of a city to forge the Socialism-Fairyland, but the landscape of Pyongyang under the reign of Kim Jong-un is very similar to what we see in the capitalist cities. The purpose of this study is to analyze the changes of urban spatial policy based on the Socialism-Fairyland envisioned by the Kim Jong-un regime. This study analyzes the composition of the Urban Beautification Act, which was enacted when the reign of Kim Jong-un commenced, and confirmed that Kim Il-sung’s instruction emphasizes on the importance of urban management led to the enactment of the Urban Beautification Act. The Act stresses the importance of the city’s visual image, the green spaces, and entertainment facilities, and related urban spatial policies actively carried out. Kim Jong-un’s regime also seems to be using the Socialism-Fairyland as political propaganda while maintaining the characteristics of a socialist city. This study has limitations when it comes to discussing the changes of urban spatial policy in Kim Jong-un regime, as they are based solely on laws. However, it is meaningful that Kim Jong-un’s regime has identified some features of urban spatial policy through the Urban Beautification Act, which was enacted for the purpose of realizing this Socialism-Fairyland. 김정은 체제는 사회주의선경을 만들기 위한 도시 건설을 강조하고 있으나, 김정은 집권 이후의 평양은 자본주의 도시의 경관과 크게 다르지 않다. 본 연구는 김정은 체제가 강조하는 ‘사회주의선경이란 무엇인가’에 대한 질문을 토대로 김정은 체제 도시공간정책의 변화 양상을 분석하는 것을 목적으로 한다. 김정은 집권 직후에 채택된 「도시미화법」을 중심으로 관련 법령의 흐름과 구성, 내용을 분석하고, 도시관리의 중요성을 강조한 김일성의 교시가 「도시미화법」을 포함한 관련 법령의 채택으로 이어졌음을 확인하였다. 각 법령은 특히 도시미관, 원림화, 공원과유원지를 중복적으로 강조하고 있으며, 이와 관련된 도시공간정책이 활발히 진행되고 있다. 또한, 김정은 체제는 김일성과 김정일 시대를 계승하면서 체제의 유지ㆍ강화를 위해 ‘사회주의선경’을 정치적으로 선전ㆍ선동하고 있는 것으로 보인다. 본 연구는 법이라는 문헌자료만을 바탕으로 연구를 진행한 한계가 있으나, 사회주의선경의 조성을 목적으로 제정된 「도시미화법」을 통해 김정은 체제 도시공간정책의 변화 양상을 파악하였다는데 의의가 있다.

남·여 대학생의 골다공증에 대한 지식정도와 건강신념 비교조사연구

강연주,김산아,김유리,배혜우,송윤정,왕은경,이민정,조은주,한진호,김수지 이화여자대학교 간호과학대학 2003 이화간호학회지 Vol.- No.37

A study whose subjects are male and female undergraduates in youth has been done to suggest the basic material for planning instructive program effective in preventing osteoporosis by measuring the degree of their knowledge of osteoporosis and their convictions in health. This study targeted male and female undergraduates who are in the university which lie in Seoul and Gyeonggi and agreed to participate in this study. The subjects of this study amounted to 270, male and female 135 respectively. This questionnaire was composed of total 78 questions including 12 questions as to general characteristics of undergraduates, 24 questions as to the knowledge of osteoporosis, and 42' questions as to convictions in health(Kim, Horan & Gendler 1991). This questionnaire was self-reported method and data were analyzed into real numbers, percentage, t-test and ANOVA, by operating SPSS and using Pearson correlation coefficient. The results of this study were summarized as follows: 1. Osteoporosis Knowledge, the degree of osteoporisis health belief 1) Knowledge of osteoporosis The mean of osteoporosis knowledge in male and female undergraduates who are in the university was 73.81 in range of 24 to 96 and by percent 76.89% about total score, showing a relatively middle-higher score than mean score. The mean of osteoporosis knowledge in female undergraduates who are in the university was 75.13 in range of 24 to 96 and by percent 78.25% about total score, showing a relatively middle-higher score than mean score. The mean of osteoporosis knowledge in male undergraduates who are in the university was 72.50 in range of 24 to 96 and by percent 75.52% about total score, showing a relatively middle-higher score than mean score. 2) The degree of osteoporisis health belief The mean of osteoporosis health belief in male and female undergraduates who are in the university variables that susceptibility 13.7, seriousness 15.57, benefits of exercise 21.54, benefits of calcium intake 21.22, barriers to exercise 14.79, barriers to calcium intake 13.26, motivation 17.29 in ever range of 6 to 30. The mean of benefits of exercise was highest in other variables and the mean of barriers to calcium intake was lowest in other variables. The mean of osteoporosis health belief in female undergraduates who are in the university variables that susceptibility 14.84, seriousness 16.24, benefits of exercise 21.57, benefits of calcium intake 21.37, barriers to exercise 15.84, barriers to calcium intake 13.47, motivation 17.04 in ever range of 6 to 30. The mean of benefits of exercise was highest in other variables and the mean of barriers to calcium intake was lowest in other variables. The mean of osteoporosis health belief in male undergraduates who are in the university variables that susceptibility 12.61, seriousness 14.90, benefits of exercise 21.50, benefits of calcium intake 21.07, barriers to exercise 13.73, barriers to calcium intake 13.04, motivation 17.55 in ever range of 6 to 30. The mean of benefits of exercise was highest in other variables and the mean of barriers to calcium intake was lowest in other variables. 2. Difference between male and female undergraduate in knowledge and health belief about osteoporosis according to general affection 1) Difference between male and female undergraduate in knowledge about osteoporosis according to general affection It is gender that seems to be similar correlation with knowledge about osteoporosis according to general affection. There were statistically higher figure in female undergraduate(F=2.943, p=O.OO4), by means of the mean of female undergraduate is 75.13, the mean of male undergraduate is 72.50, about osteoporosis knowledge according to gender. Especially, there were statistically similar difference (F=5.005, p<.OOl) in calcium knowledge of the prevention knowledge. In case of female, there weren't similar difference, but There were statistically similar difference (F=4.374, p=O.014) in female undergraduate in knowledge about osteoporosis according to age. There were shown higher age at the degree of higher knowledge. 2) difference between male and female undergraduate in health belief about osteoporosis according to general affection There were statistically similar difference according to age, drinking in all. of the male and female undergraduate in health belief about osteoporosis according to general affection. In case of female undergraduate, the difference of health belief about osteoporosis according to age is the benefit of calcium intake(F=6.008, p=O.OO3), and there were shown the highest score at age among 20 and 24, and the lowest score at age below. In case of male undergraduate, the statistically similar difference of health belief about osteoporosis according to age is the susceptibility(F=3.794, p=O.025), and there were shown the highest score at age below 19, and the lowest score at age above 25. In case of female undergraduate, the statistically similar difference of health belief about osteoporosis according to drink is the benefit of exercise(F=-1.990, p=0.049), and there were shown higher score at non-drinking experimental person than drinking. In case of male undergraduate, the statistically similar differences of health belief about osteoporosis according to drink are the benefit of exercise (F=-1.992, p=O.048) and calcium intake (F=-2.074, p=0.040), and there were shown higher score at non-drinking experimental person than drinking. In case of female undergraduate, the statistically similar differences of health belief about osteoporosis according to general affection are smoking and taking oral contraceptive pill. Smoking was shown statistically similar difference from susceptibility (F=2.237, p=0.027), and there were higher score at smoker than non-smoker. taking oral contraceptive pill was shown statistically similar difference from susceptibility(F=2.534, p=0.012), and there were higher score at taker than not. 0In case of male undergraduate, the statistically similar differences of health belief about osteoporosis according to general affection are the benefit of exercise and calcium intake according to start age for drinking. The start age for drinking was shown statistically similar difference from the benefit of exercise(F=4.555, p=0.OO5). There were higher score at the start age among 16-19 and lower score at the start age above 20. It was also shown statistically similar difference from the benefit of calcium intake(F=3.521, p=O.017). There were the highest score at the start age among 16-19 and the lowest score at the start age among 13-15. 3. The relationship between osteoporosis knowledge and osteoporosis health belief. There was statistically a significant positive correlation between osteoporosis knowledge and osteoporosis health belief(r=0.1761, p=O.OO4) of the osteoporosis health belief. There was statistically a significant positive correlation between osteoporosis knowledge and susceptibility(r=0.1384, p=O.023), benefits of exercise(r=0.1210, p=O.047), motivation (r=0.1413, p=O.021). There was statistically a significant positive correlation between osteoporosis knowledge and susceptibility, benefits of exercise, motivation of the osteoporosis health belief. In conclusion, the degree of osteoporosis knowledge in female undergraduate was significantly higher than male undergraduate, there was statistically a significant positive correlation between osteoporosis knowledge and susceptibility, benefit of exercise, motivation. And finally, approximal research according to distiction of sex might be needed to prevent effective osteoporosis. And this result shows that improving level of osteoporosis knowledge will be effective to promoting motivation and health behavior by increasing susceptibility and benefit of exercise.

소규모 건물을 대상으로 한 태양광열-지열 융복합 시스템의 탄소배출량 분석

강연주,배상무,채호병,남유진 대한설비공학회 2023 설비공학 논문집 Vol.35 No.5

To achieve the national carbon-neutral target, carbon reduction in the building sector is essential, and environmental impact assessments of hybrid systems such as photovoltaic and geothermal systems are required. Therefore, in this study, carbon emissions were calculated based on the life cycle evaluation method to understand the environmental load during the entire life cycle of the photovoltaic-geothermal hybrid system. The carbon emissions of the major equipment used in the target system were evaluated by dividing them into four stages: production, construction, operation, and disposal. In the single system (geothermal) and the hybrid system (photovoltaic-geothermal), carbon dioxide emissions increased during the production and construction stages, but due to the power generated from the PVT, an energy-saving effect of about 10% was observed in the operation stage. 본 연구에서는 태양광열-지열 융복합 시스템의 탄소배출량을 분석하기 위하여 동적 에너지 해석 프로그램을 활용하여 부하 모델을 구축, 부하 특성을 파악하여 그 결과를 토대로 제조, 시공, 운전, 폐기 4가지 단계의 전과정평가를 수행하였다. 그 결과는 다음과 같다. (1) 시스템의 전생애주기 동안의 이산화탄소 배출량의 비율은 제조, 시공, 운전, 폐기단계별 각각 53%, 12%, 20%, 15%로 제조단계가 가장 높은 비중을 차지하였으나, 장기 운영 시 매년 발생하는 소비전력량으로 인하여 운전단계가 약 70%로 가장 높은 비중을 나타냈다. (2)단일 시스템(지열)과 융복합 시스템(태양광열-지열) 비교 결과, 제조 및 시공단계에서 이산화탄소 배출량은 증가하지만 PVT에서 생산되는 전력으로 인하여 운전단계에서 약 10%의 에너지 절감 효과를 나타냈다. 향후, 다양한 신재생에너지 시스템에 대한 에너지 분석 및 탄소 배출량 산정을 실시하고 신재생 융복합 시스템의 탄소배출량 저감 효과를 분석할 예정이다. 또한 수집된 자료를 통해 건물 부분에서의 국가 탄소중립 목표 달성을 위한 기초자료를 확보하고 시스템별 생애주기의 탄소배출량 정보를 데이터베이스화 할 계획이다.

인천청라지구 조경설계공모를 통해 본 도시기반시설로서 도시공원의 설계 전략

강연주,김정화,배정한,Kang, Yon-Ju,Kim, Jung-Hwa,Pae, Jeong-Hann 한국조경학회 2008 韓國造景學會誌 Vol.36 No.5

본 연구는 한국토지공사가 주최한 인천청라지구 조경설계공모(2008)의 분석을 통해 도시 기반시설로서 도시공원 설계의 성과와 그 수준을 비판적으로 검토한다. 이는 최근 도시공원 조경설계공모에 대한 이론적 비평이자 도시공원의 미래 위상을 구상하는 작업의 하나라는 의의를 지닌다. 기존에 연구된 설계공모 분석 방법을 고찰하여 인천청라지구 설계공모에 적합한 다층적 분석 방법을 마련하였고, 도시기반시설로서 도시공원에 대한 개념 연구와 랜드스케이프 어바니즘의 설계 전략에 대한 연구를 통해 도시공원 설계를 위한 9가지 주요어와 분석 항목의 틀을 작성하였다. 또한, 청라지구 설계공모의 지침을 분석하여 앞의 분석틀을 네트워킹, 부지, 생태, 스케일, 인프라스트럭쳐의 5가지의 주요어로 다시 정리한 후, 이를 청라지구 설계공모 출품작의 분석틀로 사용하였다. 청라지구 설계공모 출품작들에 대하여 설계 전략과 개념을 살펴보는 방법과 분석틀을 통하여 살펴보는 방법을 동시에 적용하여 종합 분석한 결과, 도시기반시설로서 도시공원을 설계하는 태도에 대한 몇 가지 시사점을 도출하였다. 개발지구라는 대상지의 특성에서 기인하는 상호 연관된 네트워킹과 스케일의 문제, 도시 이미지의 구축을 위한 장소성과 상징성의 창출, 그리고 생태적 도시 환경의 조성과 인프라스트럭처로서의 도시공원의 역할의 강조 등이 각 출품작들에서 나타났으며, 이는 출품작마다 다양한 해석을 통해 제안되고 있었다. 그러나 대부분의 작품에서 이러한 전략들은 단순한 형태의 구현이나 개념적인 해석에 머무른 경향이 있었으며, 통합적이고 실천적인 전략으로 발전되지 못한 아쉬움을 남긴다. The objective of this study is to critically examine the result and the quality of urban park design as infrastructure by analyzing the landscape architectural design competition for Cheongna New City, which was organized by the Korea Land Corporation. This paper is meaningful in that it broadly examines several recent design competitions for urban parks, thereby discussing what the future urban park should be. This study explores the existing analysis methods of design competitions in order to establish a comprehensive method of analysis for the Cheongna competition. Through reinterpreting the concept of the urban park as infrastructure and the design strategies of landscape urbanism, nine key words and a framework for the analysis of urban park design are established. By analyzing the guidelines for the competition, five key words; networking, site, ecology, scale, and infrastructure have been selected and are used as the framework of analysis for the competition. The analysis of the contestants of the competition based on the proposed analysis method leads to a few implications for urban park design as infrastructure: networking and scale from the perspective of the development site; the creation of a sense of place and symbolism in creating the urban image; planning for an ecological urban environment; focus on the significance of the urban park as infrastructure. These implications are highlighted and discussed by the contestants through a variety of experiments. These ideas, however, are provided as a simple configuration of shapes and conceptual explanations and fail to be developed into synthetic, practical strategies.

울고 싶지 않은데 자꾸 눈물이 나요

강연주 한국초등상담교육학회 2022 한국초등상담교육학회 학술대회 Vol.2022 No.01

피부근염 환자에서 발생한 유방암 1례

강연주,박인혜,안가영 대한내과학회 2022 대한내과학회 추계학술대회 Vol.2022 No.2

서울 금호동 오픈스페이스 네트워크 계획

강연주,배정한,Kang, Yon-Ju,Pae, Jeong-Hann 한국조경학회 2012 韓國造景學會誌 Vol.40 No.5

서울 금호동은 응봉의 산자락에 위치한 재개발 주거지역으로, 지형적 문제와 대규모 아파트단지의 조성, 부분적인 재개발사업의 시행 등 다양한 원인에 의해 주민들의 물리적, 사회적 단절이 심각한 곳이다. 본 연구는 이러한 금호동의 단절된 커뮤니티를 회복하기 위한 방안으로, 일상적 장소인 오픈스페이스의 기능과 이의 원활한 네트워크의 가능성에 주목하고자 한다. 연구를 위하여 우선 다양한 유형의 오픈스페이스를 점 또는 면적인 '거점'과 선적인 '통로'로 단순화하여 구분하고, 전체적인 맥락에서 네트워크 현황을 분석하였다. 분석 결과, 거점과 통로의 연결거리가 500m 이상인 구간이 전체의 반수 이상을 차지했으며, 유치권 안에 포함되지 않은 지역도 다수 나타났다. 축선도에 의한 연결도와 통합도 분석을 통해 연계가 취약한 구간을 점검하였으며, 추가로 거점이 필요한 구간도 산정하였다. 또한 거점과 통로의 질을 개선하기 위해 현장 조사를 실시, 문제점을 진단하고 해결 가능성을 검토하였다. 이상의 분석 결과들을 바탕으로 거점과 통로의 수적, 질적인 확보를 위한 금호동의 오픈스페이스 네트워크 계획을 수립하였다. 대상지 중심부에 주요 거점을 추가하고 6개의 보조 거점도 신규로 설치하였으며, 낙후된 보조 거점의 환경을 개선할 수 있는 방안을 마련하였다. 또한 연계가 힘든 대현산지역 근린공원 주변에 연결 통로를 확보하여 주요 통로로 기능하게 하고, 일부 구간을 중심으로 통로의 환경이 개선되도록 하였다. 네트워크 계획의 결과, 연결거리는 상당부분 줄어들었고, 연결도와 통합도는 증가하였으며, 유치권도 적절하게 확보될 수 있었다. 본 연구는 네트워크를 위한 법적, 제도적 뒷받침과 정량적인 지표화 과정 등의 한계점을 가지나, 복잡한 오픈스페이스의 유형을 단순하고 명확하게 정립하고, 이의 유기적인 관계를 정량적, 정성적으로 조명함으로써 전체적인 네트워크 구축을 위한 보다 합리적이고 실질적인 계획 방향을 제안하였다는 점에 그 의의를 갖는다. Geumho-dong, Seoul, a redeveloped residential area, is located in the foothills of Mt. Eungbong. The geographical undulation, the composition of a large apartment complex, and the partial implementation of the redevelopment project have caused the severe physical and social disconnections in this area. In order to recover functioning in the disconnected community, this study pays attention to the regeneration of the open spaces as an everyday place and in the form a network system among those open spaces. Various types of the open spaces are classified into points or faces, 'bases' and linear 'paths' analyze the network status. More than half of the open space have connecting-distance of 500m or more. Furthermore, many areas are not even included in the service-area of the open spaces. Analysis of the connectivity and integration value using the axial map has carried out to check weak linkages and to choose the sections where additional bases are required. In addition, to improve the quality of the bases and the paths, a field investigation is conducted and problems are diagnosed. The network planning of the open spaces in Geumho-dong is established, ensuring the quality and quantity of bases and paths. The plan includes the construction of an additional major base in the central area and six secondary bases in other parts, and comes up with ways to improve the environment of underdeveloped secondary bases. In the neighborhood parks at Mt. Daehyun areas, the major path are added, and the environment of the paths is improved in certain areas. Because of the network planning, the connecting-distances between bases are reduced significantly, the connectivity and integration value of the area are increased, and the service areas of the open spaces cover the whole area properly. Although this study has some limitations such as the needs for the legal and institutional supports and difficulties of a quantitative indexing process, its significance lies in the suggestion of a more reasonable and practical plan for the overall network system by defining complex types of open spaces simply and clearly and by examining the organic relationships quantitatively and qualitatively.

아파트 조경 설계의 변화와 특성 연구·수도권 아파트 단지를 중심으로

강연주 서울대학교 환경대학원 2013 環境論叢 Vol.52 No.-