• Asian Pacific Journal of Cancer Prevention
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• 제14권12호
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• pp.7117-7120
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• 2013

Background: This study hypothesized living in a poor neighborhood decreased the cause specific survival in individuals suffering from carcinoid carcinomas. Surveillance, Epidemiology and End Results (SEER) carcinoid carcinoma data were used to identify potential socioeconomic disparities in outcome. Materials and Methods: This study analyzed socioeconomic, staging and treatment factors available in the SEER database for carcinoid carcinomas. The Kaplan-Meier method was used to analyze time to events and the Kolmogorov-Smirnov test to compare survival curves. The Cox proportional hazard method was employed for multivariate analysis. Areas under the receiver operating characteristic curves (ROCs) were computed to screen the predictors for further analysis. Results: There were 38,546 patients diagnosed from 1973 to 2009 included in this study. The mean follow up time (S.D.) was 68.1 (70.7) months. SEER stage was the most predictive factor of outcome (ROC area of 0.79). 16.4% of patients were un-staged. Race/ethnicity, rural urban residence and county level family income were significant predictors of cause specific survival on multivariate analysis, these accounting for about 5% of the difference in actuarial cause specific survival at 20 years of follow up. Conclusions: This study found poorer cause specific survival of carcinoid carcinomas of individuals living in poor and rural neighborhoods.

• 한국주거학회논문집
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• 제14권6호
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• pp.147-154
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• 2003

This study examines and analyzes the current status, characteristics and properties of Super-Graphic as a visual element with Super Graphic designed on the wall of apartment housing, typifies them and explains the preference and evaluative structure by each type. The results of this study are as follows： According to color environment of Super-Graphic, N-tone colors are 21.4％ and YR-tone colors are 14.5％. In the whole distribution, cold color tone is 41.4％ and warm color tone is 37.2％. In the brightness, 72.9％ of the entire Super Graphic use high brightness and in the saturation, 51.2％ show low saturation, achromatic colors are 21.4％ and high saturation is 16.5％. As a result of conducting SD test to analyze the preference of Super-Graphic, 'wonderful' is most negative variable, followed by 'heterogeneous', 'splendid', 'romantic' variety'. Positive variables are 'monotone', 'stable' and 'calm'. As a result of factor analysis to reveal the evaluative structure of Super Graphic image based on the above results, five factors including brightness, saturation, stability, harmony and ordered are extracted and it is considered that these are important variables to be reflected in designing Super Graphic in future.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2008년도 하계학술발표대회 논문집
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• pp.1134-1138
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• 2008

Electret filter media are used in general ventilation filters, disposable respirators, vehicle cabin filters, vacuum cleaners and room air cleaners. There are basic mechanisms of interception, inertial impaction, diffusion, gravitational settling, electrostatic attraction by which an aerosol particle can be deposited onto a fiber in a filter. The ability of fine particle removal strongly depends on the electrostatic forces between particles and polarized fibers. Thus, the stability of the fiber polarization is a major factor in the reliability of electret filters. In this study, electrical properties and filtration performance of electrospun filter media are quantitatively investigated. Electrical properties of electrospun filters have been studied on surface charge potential and surface charge density. Also the filtration performance of the electret filters are evaluated on collection efficiency. Electrospun filters show same collection efficiency with low pressure drop compare to commercialized HEPA filters. Surface charge potential and surface charge density of electrospun filters are increased with increasing applied voltage. Also collection efficiency of electrospun filters is increased with increasing surface charge potential and surface charge density.

• 한국자동차공학회논문집
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• 제10권5호
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• pp.9-14
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• 2002

The durability prediction of emission control components, especially 02 sensor and catalytic converter, is getting more important as emission regulation is getting stricter and vehicle durability mileage requirement is also extended from 80,000 ㎞ to 160,000 km in Korean market. And the duration of vehicle mileage accumulation to get vehicle exhaust emission deterioration factor for certification is required to be shorter in order to reduce the vehicle development time. Since most of the vehicle emission development tests are done on chassis dynamometer and aging bench by using vehicle aging modes, real road condition and in-use driving patterns must be reflected into them to predict the vehicle emission level and to meet emission regulation especially at high mileage. In order to get the frequent driving pattern of vehicle and the aging characteristic of emission components, a vehicle was tested by changing drivers and driving roads around Seoul. Real road driving patterns were analyzed and compared with those of the certification modes which are well known in automotive industry.

• 한국콘텐츠학회논문지
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• 제14권5호
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• pp.436-443
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• 2014

불확정성의 도시 사회구조에서도 생존을 위한 뚜렷한 성향을 가지고 특성화를 구축하는 건축을 바이오모픽 건축이라고 본 연구에서 전제하고 연구를 시작하였다. 본 연구의 목적은 현대건축의 비정형적이고 새로운 형상의 건축으로 전개되어 가고 있는 바이오모픽 건축에 내재되어 있는 의미를 해석하여 바이오모픽 건축 발생의 유기체 철학적 배경을 분석하는 것이다. 바이오모픽 건축은 자율적 생존구조를 지닌 생명체 형상으로 생명체가 지닌 생명현상의 잠재력을 형태로 구체화한 건축이라고 정의하였다. 이론적 고찰을 통해 바이오모픽 건축의 특성은 유동적 생명현상의 형상화와 상호관계적 자기조직화와 사용자 경험의 활성화 지원으로 분석되었다. 바이오모픽 건축의 특성을 분석하여 바이오모픽 건축의 발생요인으로 유기체 철학을 도출하는 연구분석의 객관적 기준을 구체적 사유로서의 '생성'과 복잡성의 과학과 창발적 시스템을 중심으로 정리하였다. 바이오모픽 건축의 발생요인으로 유기체 철학을 중심으로 분석하였다. 새로운 건축의 유기체 철학을 중심으로 하는 발생배경에는 건축 관련 구성요소와 환경과의 유기체적인 통합의 특성이 작용되는 현상을 확인할 수 있다.

• 환경영향평가
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• 제19권2호
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• pp.127-140
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• 2010

This study investigates the relation between the location of a habitat and the ecological connections according to the habitat type in the riparian zone at the Nonsan Stream and Yanghwa Stream. Stream habitat is classified into nine types for the aquatic insects and fish. For vegetation and birds, habitat is classified into two types of medium-scale streams, including both physical and chemical streams are analyzed accordingly. Nowadays, The fundamental goal of the river environment restoration enterprise is the rehabilitation or the restoration of the characteristic the river scenic or environment. For instance, The Channel habitats which has physical nature environment such as flat, speedy rapids, or closed-channel wetland, pool are constructed by artificial, Consequently, make them autogenesis smoothy eco-environment. However, the river environment are controlled not only physical environment, but it also need reasonable the quality of the water to compose smoothly. Finally, understanding what influence are effecting on physical habitat environment which are made by natural factors to water quality are very important factor for the river environment restoration enterprise Therefore, In this research, we are targeting to a basin to investigate the environment of the physical channel habitat and evaluate the changing of the water quality. This results will be a important characteristic that can judge the physical habitat and reciprocality connected to the water quality or adequacy of restoration technology. Therefore in this study, as a step to quantify functions and values of habitats and definite factors to perform habitat, we selected a representative stream of sand-stream, gravel-stream to classify habitat characteristics and quantified the physical, chemical, biological characteristics.

• 도시과학
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• 제11권1호
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• pp.49-57
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• 2022

Semi-industrial zone is the area where manufacturing, residential, commercial zones are mixed. Despite of their potentials in that proximity to city and convenient transportation infrastructure, a lot of semi-industrial zones in Korea have converted to other uses due to many issues such as change of industry, increasing land price, real estate speculations. Recently, local government is trying to solve their existing issues and develop them through a restoration of publicness. Now publicness is thought of as a key factor of regeneration in semi-industrial areas. In this regard, this study aims to examine the way of restoring publicness revealed in Brooklyn Navy Yard mainly focus on their urban contexts and architectural ways. Brooklyn Navy Yard, an exemplary case, is an industrial complex that has grown economically, socially and culturally through emphasizing publicness and it is evaluated as an advanced example of public industrial complex. Through the analysis of Navy Yard, this study was trying to emphasize the importance of publicness in the regeneration of semi-industrial areas and to provide implications for the Seoul Government's solutions, which are still in the conceptual stage. To analyze the publicness of the study subjects, framework and elements were derived by examining related theories and prior researches. Depending on this frame, the results of the publicness of the Navy Yard were as follows. First of all, the 'Publicness as an officiality' was identified at the characteristic of the site and Navy Yard development corporation. Second, the 'Publicness as a public interest' of the Navy Yard Development Corporation was identified in various ways of its operation methods. Finally, the 'Publicness as an accessibility' was identified in the opening of urban and architectural spaces in Navy Yard. These publicness were analyzed with seven Navy Yard's success factors. Thus, it can be interpreted that the publicness of the semi-industrial areas can contribute significantly to their success. The publicness restoring methods of Navy Yard could be used as a basic data in semi-industrial areas in the future in Korea. However they are limited to be applied directly, so extensive and in-depth research in terms of their applicability should be conducted.

• Spatial Information Research
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• 제20권4호
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• pp.69-82
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• 2012

본 연구의 목적은 서울시의 전통적 중심지역인 도심의 공간구조적인 특성을 파악하고, 중심부의 토지이용 패턴과 그의 특성을 분석하여 도심의 계획과 개발에 필요한 방향을 제시하는 것을 그 목적으로 하였다. 본 연구의 진행을 통해 서울시 도심의 공간구조를 현재의 시점에서 고찰함으로써 향후 수도권을 포함한 광역 대도시권의 중심지로서의 공간구조 위계와 향후 서울도심부의 역할에 대하여 계획적인 요소와 세부적인 토지이용의 실증적인 분석을 바탕으로 연구 결과를 도출하였다. 중심업무 기능이 판매, 업무, 서비스시설이었던 점을 감안하여 이를 중심으로 연구대상지내 도심의 패턴 및 특성을 정리 하였다. 첫째, 토지이용의 판매시설 분포의 특성은 종로대로변을 따라서 서에서 동으로 이동하는 가로축으로 발달하였고 퇴계로에서부터 명동, 남대문까지 가로축을 따라 높은 시설 분포율을 보이고 있다. 이는 대형 상권이 존재하기 때문으로 분석된다. 둘째, 토지이용의 업무시설 분포의 특성은 세종로와 을지로 서울시청, 서울역으로 이어지는 지역에 높은 분포율을 보였다. 이러한 분석 결과는 서울시의 도심지역 정비계획과 청계천 복원사업, 도심재창조 프로젝트 등이 업무 판매 기능을 강화 하였으며 도심지역의 쇼핑 여가 관광 기능이 확대되어 주변 상권을 활성화 하였으며, 서울의 도심의 중심성을 유지하고 있는 것으로 평가 되었다.

• 한국ITS학회 논문지
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• 제11권5호
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• pp.89-96
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• 2012

본 논문에서는 인터디지털 헤어핀 공진기를 이용하여 UTIS (도시 교통 정보 시스템)에 사용 가능한 저 위상잡음 발진기를 설계 및 제작하였다. 인터디지털 헤어핀 공진기는 기존의 소형화된 헤어핀 공진기에 인터디지털을 접목시켜 공진기의 물리적인 크기를 기존 대비 약 70%로 축소시켰고, 고조파 특성을 향상시켰다. 또한 132 의 높은 Q 값은 저 위상잡음 발진기 설계에 적합하다. UTIS 용 저 위상잡음 발진기는 5.75 GHz에서 출력 12 dBm 의 전력과 100 kHz offset 에서 -100.8 dBc/Hz 의 낮은 위상잡음을 얻었다. 이는 기존의 헤어핀을 이용한 발진기에 비해 12 dB 정도의 개선을 보여준다.

• 한국대기환경학회지
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• 제28권3호
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• pp.273-281
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• 2012

The government is carrying forward a sustainable development which reduces green-house gas and environmental pollution by preparing 'Low Carbon Green Development' policy basis as a new paradigm of national development. This study aims to understand the status of atmosphere contamination which Seoul has by finding correlation among social, economical indexes and carbon, the humanities and social characteristic materials which best express types of city and correlation and to suggest implications. According to the results of the analysis, first the carbon emission volume of Seoul recorded 0.56 ppm, Jongno, Jung-Gu, Kuro, Kangnam and Songpa were more than the average of Seoul and Kwangjin-Gu & Kangbuk-Gu, relative north east regions, Yeongdeungpo-Gu and Dongjak-Gu, south west regions showed lower CO occurrences. Second, according to the correlation and factor analysis, elements which affect CO emission volume of Seoul are largely represented by regional level, traffic level and development density level. Third, when the importance of influence factors based on the analyzed standard coefficient by a regression model, traffic and development density level were most important by recording traffic level (0.967), environmental level (0.385), regional level (0.530) and development density (0.561). Consequently, it was revealed that the traffic level most affected CO emission.