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The Formation Factors and Distribution Analysis of High-Class Residential Areas in Seoul
김민회,김태현,홍선관,김홍규,Kim Min-Hoi,Kim Tae-Hyun,Hong Sun-Gwan,Kim Hong-Kyu The Korean Housing Association 2005 한국주거학회 논문집 Vol.16 No.6
도시화는 현대사회의 가장 큰 특징이며 도시가 성장하면서 과거의 기능이 변화하고 도시내부의 공간구조가 점차 기능적으로 분화하는 경향이 있다. 그 중 가장 주목할 만한 것 중의 하나는 주거지역의 입지변화와 공간적 확산과정에서 나타나는 주거지 분화현상이다. 도시생태학자 Hoyt은 주거지 이동패턴에 대하여 도시 내의 주거지분포 패턴을 결정짓는 핵심적인 요인으로 최고지대를 지불할 수 있는 부유층의 주거입지 선택에 따라 전체 도시의 계층별 주거분포가 영향을 받게 된다고 주장하였다. 서울은 소규모로 계획된 역사도시에서 인구 1000만의 대도시로 성장하여 오면서 많은 구조적 변화를 경험하여 현재의 공간구조를 이루게 되었다. 현재 전체 서울의 주택지는 동일한 것이 아니고 각종 주위환경에 따른 성격과 특성을 달리하는 요소로 구성되어 있다. 이 특성을 달리하는 주택지들이 모여서 각기 상이한 역할을 수행하고 서로 기능적 관계를 맺으면서 주택지를 형성하고 있다. 선형이론(Hoyt's Sector theory)에 따르면 고급주택지역의 도시 공간구조에 많은 영향을 미치고 있다고 주장하였다. 그럼에도 불구하고 서울의 고급주택지역의 분포와 그 입지 특성에 관한 연구는 미비한 실정이다. 본 연구의 목적은 서울시 고급주택지역의 분포를 형성하는 원인을 규명하는데 있다. 고급주택지의 지역적 분포를 파악하여 그 입지 성향과 특성을 알게 되면 도시의 토지이용계획, 특히 주거지계획에 도움이 될 수 있다.
검도선수 승부근성이 자기관리와 스포츠정서에 미치는 영향
김민회(Kim, Min-Hoi),전병관(Chun, Byung-Kwyan) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.5
This study has its purpose to investigate the mutual relationship of tenacity, self-management, exercise emotion and athletic performance of kumdo players in business teams, for the purpose of performance enhancement. We carried out the complete enumeration for the total members, 143 kumdo players who registered in Korean Kumdo Federation for Business teams. Collected data was processed using the factor analysis, reliability analysis, t-test, one-way ANOVA, correlation analysis and multiple regression analysis. 10 selected interviewees carried out in-depth interviews composed of unstructured and half-structured interviews with the cooperation of experts. Then we used the analysis method of Colaizzi(1978) describing essential structure of experiences. Conclusions based on the results of the study are as follows: First, there were significant differences in tenacity, self-management, exercise emotion of kumdo players depending on the characteristics of individual players. Second, we found that the tenacity influenced on the self-management of kumdo players significantly. Third, we also found that tenacity of kumdo players influenced on the exercise emotion significantly. Fourth, self-management of kumdo players influenced on the exercise emotion significantly. Fifth, as the result of in-depth interviews supporting and supplementing the above result of survey, we classified and categorized the characteristics and factors that gave direct and indirect effects on the athletic performance.
고유전율 절연체를 활용한 저 전압 유연 유기물 박막 트랜지스터
김재현 ( Jae Hyun Kim ),배진혁 ( Jin Hyuk Bae ),이인호 ( In Ho Lee ),김민회 ( Min Hoi Kim ) 한국센서학회 2015 센서학회지 Vol.24 No.3
We demonstrated low-voltage organic thin-film transistors (OTFTs) with bilayer insulators, high-k polymer and low temperature crosslinkable polymer, on a flexible plastic substrate. Poly (vinylidene fluoridetrifluoroethylene) (P(VDF-TrFE)) and poly (2-vinylnaphthalene) are used for high-k polymer gate insulator and low temperature crosslinkable polymer insulators, respectively. The mobility of flexible OTFTs is 0.17 cm(2)/Vs at gate voltages -5 V after bending operation.
InGaZnO 용액의 농도가 Drop-casting으로 제작된 산화물 박막 트랜지스터의 전기적 특성에 미치는 영향
노은경 ( Eun-kyung Noh ),유경민 ( Kyeong Min Yu ),김민회 ( Min-hoi Kim ) 한국센서학회 2020 센서학회지 Vol.29 No.5
Drop casting, a solution process, is a simple low-cost fabrication technique that does not waste material. In this study, we elucidate the effect of the concentration of a InGaZnO solution on the electrical properties of drop-cast oxide thin-film transistors. The higher the concentration the larger the amount of remnant InGaZnO solutes, which yields a thicker thin film. Accordingly, the electrical properties were strongly dependent on the concentration. At a high concentration of 0.3 M (or higher), a large current flowed but did not lead to switching characteristics. At a concentration lower than 0.01 M, switching characteristics were observed, but the mobility was small. In addition to a high mobility, sufficient switching characteristics were obtained at a concentration of 0.1 M owing to the appropriate thickness of the semiconductor layer. This study provides a technical basis for the low-cost fabrication of switching devices capable of driving a sensor array.
BIPV 시스템을 위한 전이금속 산화물 다중층 컬러 유리 구현 기술 연구
안현식(Hyeon-Sik Ahn),Akpeko Gasonoo,장은정(Eun-Jeong Jang),김민회(Min-Hoi Kim),이재현(Jae-Hyun Lee),최윤석(Yoonseuk Choi) 한국전기전자학회 2019 전기전자학회논문지 Vol.23 No.4
이 논문에서는 전이 금속 산화물(TMO)층으로 구성된 다층 박막을 사용하는 BIPV(Building Integrated Photovoltaic) 시스템용 전면 컬러 유리를 제안하였다. 몰리브덴 산화물(MoO₃) 및 텅스텐 산화물(WO₃)은 굴절률 차이가 큰 계면을 형성하여 적절한 간섭효과를 얻을 수 있다. 단일 Thermal Evaporator 증착 방법을 통해 다층 박막을 제작함으로써 간단하고 빠르며 저렴한 제조 방법을 제안하였다. MoO₃(60nm)/WO₃(100nm) 다층 박막으로 90% 이상의 광 투과율을 갖는 자홍색 유리를 시연하였으며, 이 기술은 상용화된 BIPV 시스템에 유용할 것으로 기대된다. This paper proposed colored front panel glass for Building Integrated Photovoltaic (BIPV) systems using multi-layered thin films composed of transition metal oxide (TMO) layers. Molybdenum oxide (MoO₃) and tungsten oxide (WO₃) provided complementary and suitable materials in making effective interference of reflected light from interfaces with significant difference in refractive indices. A simple, fast, and cheap fabrication method was achieved by depositing the multi-layer films in a single thermal evaporator. Magenta colored glass with optical transmittance of more than 90% was achieved with MoO₃(60nm)/WO₃(100nm) multi-layered film. This technology could play in a critical role in commercial BIPV system applications.
전국 일부 학교 건축물 내의 실내 공기 및 인식도 조사
손종렬(Jong-Ryeul Sohn),윤승욱(Seung-Uk Yoon),김종혁(Jong-Hyuk Kim),이용식(Yong-Sik Lee),최한영(Han-Young Choi),김영성(Young-Sung Kim),손부순(Bu-Soon Son),양원호(Won-Ho Yang),김민회(Min-Hoi Kim) 대한환경위생공학회 2005 대한환경위생공학회지 Vol.20 No.3
Recently, indoor air quality (IAQ) in workplace, residential environments and schools has been concerned of people, scientists and related the public, and has recognized the healthy effectsrelated to IAQ, specially in schools in Korea. Therefore, objectives of this study in this study were to measure and compare the perception of IAQ of selected air pollutants in Seoul from April to September 2004. Measurement place measured 2 schools of Seoul and local 9 schools (by Kyonggi Province, Chungchong-bukdo Chungchong-namdo, Chollado-bukdo, Cholla-namdo, Kyongsang-bukdo, Kyongsang-namdo, Kwangju, schoolin Pusan each 1 place). Temperature, humidity, illumination, carbon monoxide, carbon dioxide, TBC (total bacteria count), noise, PM10, TVOC(total volatile organic compounds), HCHO (formaldehyde) were measured simultaneously. Also, we performed a questionnaire survey of 250 students and 50 teachers about their awareness for the importance of IAQ in their schools. Among this article, we handled noise, carbon monoxide, carbon dioxide, TBC, TVOC, HCHO, PM 10 in our conclusion. Major results were as follows ; Carbon monoxide (CO) was lower than indoor air standard of Korea. Carbon dioxide (CO₂) appeared that 4 schools among our sample target school exceeded in normal standard. 4 schools were almost similar with normal standard. TBC appeared that 7 schools among 11 schools were higher than standard. Noise measured school's mean value passed exceeded standard. And school which passed over standard appeared to 7 schools among 11 schools. HCHO was exceeded 4 schools by standard that excess and certainly interrelation between school's establishment year and facilities of construction was detected. PM10 was exposed all schools by fitness in standard. TVOC appeared that 9 schools among 11 measurement school was exceeded health effect standard of Japan.