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면(棉)과 나일론 직물(織物)의 괴화(槐花) 염색(染色)에서 Chitosan 처리(處理)와 매염(媒染) 이 색상(色相)에 미치는 영향(影響)
황희연 ( Hui Youn Hwang ),최정임 ( Jeong Im Choi ),전동원 ( Dong Won Jeon ) 한국패션비즈니스학회 2006 패션 비즈니스 Vol.10 No.2
In this study, the effects of chitosan pre-treatment on the mordanting effect and dyeability were investigated in the dyeing using Japanese pagoda tree. The chitosan treatment effects were evaluated mainly focused on the colors after dyeing of cotton and nylon fabrics which were treated with acidic aqueous solution of chitosan. In the case of chitosan untreated fabrics, the mordanting effects on the cotton and nylon were insignificant and the dyeability was very low. Regardless of the mordant types(Al, Sn, and Fe), the dyed fabrics exhibited almost identical yellowish colors. In the case of chitosan treated fabrics, dark colors were obtained compared to the case of chitosan untreated and ΔE values were increased significantly. In cotton fabrics, the most excellent result was obtained under the condition of unmordanted and chitosan treated fabrics. This verifies the fact that routin coloring matters establish direct linkages with the chitosan components, which exhibit cationic nature, easily. In nylon fabrics, the effects of mordanting treatment and chitosan treatment are so insignificant that the routin coloring matters are presumed to establish direct dyeing with the nylon molecular chains.
도시 재해위험도 평가 모형 연구 - 화재, 시설, 피난위험도 중심의 청주시 사례 -
황희연,백기영,박병호,이만형,황재훈,류을렬,김태환,Hwang, Hee-Yun,Baek, Ki-Young,Park, Byung-Ho,Lee, Man-Hyung,Hwang, Jae-Hoon,Ryu, Eul-Leal,Kim, Tae-Hwan 한국방재학회 2001 한국방재학회논문집 Vol.1 No.2
본 연구는 우리나라의 도시재해의 특성과 자료확보 가능성을 기반으로 청주를 사례로 화재, 시설, 피난위험도에 한정하여 재해위험도 평가모형을 제시하고 있다. 평가기준에 있어 동별 기준으로 화재위험도는 화재발생건수와 피해액을 기준으로 하고 있으며, 시설위험도의 경우 중점관리시설의 개소 수와 관리등급을 기준으로 하고 있고, 피난위험도는 지목별 면적과 지목별 가중치로 모형을 설정하였다. 청주시에 대한 모형 적용 결과 화재위험도는 불량주거지역과 생활편익시설이 집중되어 있는 중심 상업지역내의 시가화구역이 상대적으로 높게 나타났으며, 반대로 시설위험도와 피난위험도는 신흥 아파트 밀집지역과 구주거지역 모두가 높게 나타났다 종합위험도에 있어서는 중심상업지역과 그 주변밀집주거지역에서 높은 점수를 나타내는 것으로 판명되었다. Based on basic characteristics of urban disasters and their data availabilities in Korea, this study provides risk assessment models which are derived from Cheongju examples. In specific, the application models are confined to fire, facility and escape risk survey results in the paper. For the assessment criteria, major independent variables for the categories of fire include both the frequency levels and the amount of damage. And the degree of facility risk assessment is heavily hinged on both the weighted values of key facilities and their weighted rank-sizes. In the same context, the degree of escape risk assessment is hinged on both the weighted values and the amount of the classification of land. From the empirical configuration, this paper presents that the potential figure of fire risk is relatively higher in the built-up areas within the existing Central Business District where accommodates a number of dilapidated housing units and community-supportive facilities. In contrast, the potential figure of facility and escape risk is higher in both old residential areas and the newly-built apartment complex. In short, the CBD and its neighboring residential areas record a high potential figure in terms of total risk, juxtaposing fire, facility and escape risk all together.
충주댐 수몰지역 민가 유형에 관한 고찰 - 청풍면을 중심으로 -
황희연(Hee Youn Hwang),이진숙(Jin Sook Lee) 대한공업교육학회 1983 대한공업교육학회지 Vol.8 No.2
This paper is a study on the types of vernacular houses around Cheong Pung Myen, Chung Cheong Buk Do. Because being immerged under water after the construction of Chung Ju dam, there are well remained vernacular houses in spite of the change of Korean life style and the Sae-Me-Eeul movement. So this area is selected for the research objects. In this study, the types and characteristics of houses are analyzed according to the topography and the chronological order. In conclusion, the houses in this area are divided into three types in view of the geographical conditions, socio-cultural backgrounds. There are as follows: First is the level ground type mainly on the plain. Second is the mountainous district type mainly on the hilly country. Third is the mixed type between plain and hilly country.
논문 : 택지개발사업지구 지정에 따른 주변지역 개발행위허가 공간분포 실태분석: 청주시를 대상으로
황희연 ( Hee Yun Hwang ),권정주 ( Jeong Ju Kwon ) 한국도시지리학회 2010 한국도시지리학회지 Vol.13 No.3
본 연구는 택지개발사업지구 지정이 지구 주변지역의 개발행위허가에 미치는 영향에 대해 심층적 분석을 통해 개발행위허가제 개선을 위한 기초자료를 구축하고자 하였다. 이를 위해 개발행위허가제의 개념 및 의의, 개발행위허가제 운영실태, 공간집중도에 대한 이론적 체계를 정립했다. 이어서 청주시 개발행위허가 관련 자료(2004~2009)를 대상으로 하는 개발행위허가 대상의 공간집중도와 GIS를 통한 공간분포상태를 분석했다. 분석결과 택지개발지구 주변지역에 개발행위허가가 집중되는 용도지역과 개발용도의 특성, 청주시 개발행위허가 대상의 공간집중도 변화 및 공간분포 변화 특성을 파악했다. 본 연구는 실증자료를 근거로 택지개발사업지구 지정에 따른 주변지역 개발행위허가 대상의 공간분포 실태를 계량적으로 분석을 하고, GIS기법을 활용한 공간분석을 실시하여 개발행위허가의 공간적 분포특성을 파악하였다는데 의의가 있다. This study is to establish the foundation to improve development permit system through in-depth analysis of how designated land development affects development permit on the surrounding area. To progress this study, concepts of development permit system, operating conditions of development permit system, and theoretical systems of space centrality were established. It was followed by the analysis of objects to development permit system based on preserving dossiers (2004~2009) of development permit system in Cheong-ju city and analysis of space centrality by GIS. After the analysis, properties of land classification, zoning centralized by development permit system in surrounding areas of land development, space centrality; and space distribution changes in objects of development permit system in Chungju city were studied. This study has significant meaning that it used a quantitative method to analyze spatial distribution of development permit system by designated land development and spatial analysis using GIS method to understand the distributional patterns of development permit system.
황희연(Heeyeon Hwang) 한국도시지리학회 2000 한국도시지리학회지 Vol.3 No.2
This paper proposed a comprehensive land management program to enhance the effectiveness of lard management in the areas inside urban growth boundaries, at the same time, to manage the areas outside urban growth boundaries. The principle is that development and preservation should be unified by holding or reserving development in these areas instead of developing both inside and outside areas of urban growth boundaries through spatial expansion. It is also suggested that we should approach an urban development project from a broad regional planning perspective, relating it to the availability of public facilities and services, managing land through phased management programs, and lastly forcing developers to share some or all the cost for the additional demand for public facilities and services resulting from new development. In addition, a social consensus limiting landownership has to be reached to make such urban growth management program a success.