• 한국지역지리학회지
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• 제21권2호
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• pp.242-258
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• 2015

본 연구는 수도권 실버타운의 공간적 분포 특성을 살펴보았고, 수도권 실버타운에 거주하고 있는 노인들을 대상으로 심층 면담을 실시하여 실버타운에 대한 인식을 알아보았다. 최근에는 가족과의 교류가 용이하며, 의료시설과 접근성이 좋은 도심이나 도시 근교 지역을 선호하는 노인들이 증가함에 따라 수도권에 실버타운이 집중 분포하고 있다. 이들 시설은 주로 서울의 북쪽과 경부 고속도로를 축으로 한 경기도의 남쪽에 위치하고 있다. 따라서 이용자들이 실버타운을 선택할 때 시설의 위치와 접근성이 중요하게 작용한다는 점을 알 수 있었다. 실버타운에서 노인들은 가사 노동에서 해방되어 의미 있는 일을 하면서 여생을 보낼 수 있고, 사회적 계층이 유사한 사람들과 원만하게 교류하며 긍정적인 자아정체감을 가질 수 있다. 이러한 측면에서 80세 이상의 이용자들은 실버타운을 집으로 인식하고 뿌리내림하고 있는 경우가 많았다. 반면에 60~70대의 비교적 젊은 노인들은 실버타운에 입소하여 자신만의 고유한 특성이나 자기결정권이 제한되는 것에 불편을 느끼고 다른 주거 공간으로 이주하는 것을 고려하기도 하였다.

• 한국경제지리학회지
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• 제5권1호
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• pp.69-87
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• 2002

본 연구는 대구시에서 1990년대에 급속하게 증가한 편의점의 공간확산과 입지적 특성을 고찰하였다. 대구의 편의점은 1992년에 도심 또는 중심업무지구(CBD)에 인접한 점이지대에 처음 도입된 후, 도심과 주거지역으로 확산돼 갔지만, 일정한 구매수요가 발생하는 곳을 중심으로 확산되어 갔다. 그 결과, 대구시 편의점의 공간분포는 고등학교 밀집지역, 상업지역, 아파트지역 등에 특히 집중분포하는 매우 불균등한 분포패턴을 보이고 있다. 이러한 분포는 편의점의 주요한 두 가지 입지요인에서 비롯된 것으로 보인다. 일차적으로는 편의점의 입지가 편의점을 자주 이용하는 인구집단 즉, 그 수요인구의 분포 요인에 가장 영향을 받고, 이차적으로는 그 수요인구가 접근하기 쉬운 도로교통의 접근성 요인에 의해 입지하기 때문이다.

• 실내환경 및 냄새 학회지
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• 제17권4호
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• pp.362-371
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• 2018

Indoor Volatile organic compounds (VOCs) are classified as known or possible toxicants and odorants. This study characterized VOC levels in 11 homes in an area in the capital of Seoul by using two different methods of VOCs sampling, which are the active sampling using a thermal sorption tube and the passive sampling using a diffusion sampler. When using the active sampling method, the total target VOC concentration ranged from 41.7 to $420.7{\mu}g/m^3$ (mean $230.4{\mu}g/m^3$ ; median $221.8{\mu}g/m^3$) during winter and 21.3 to $1,431.9{\mu}g/m^3$ (mean $340.1{\mu}g/m^3$; median $175.4{\mu}g/m^3$) during summer. When using the passive method, 29.6 to $257.5{\mu}g/m^3$ (mean $81.8{\mu}g/m^3$; median $49.4{\mu}g/m^3$) during winter and 1.2 to $5,131.1{\mu}g/m^3$ (mean $1,758.8{\mu}g/m^3$; median $1,375.1{\mu}g/m^3$) during summer. Forty-nine VOCs were quantified and toluene showed the highest concentration regardless of the season and the sampling method studied. The distribution of VOCs was relatively varied by using the active method. However, it showed a low correlation with indoor environmental factors such as room temperature, humidity and ventilation time. The correlation between indoor environmental factors and VOCs were relatively high in the passive method. In particular, these characteristics were confirmed by principal component analysis.

• 한국환경과학회지
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• 제32권4호
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• pp.243-257
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• 2023

This study was conducted to investigate the distribution characteristics, source identification, and health risk of polycyclic aromatic hydrocarbons (PAHs) present in particulate matter 10 (PM-10), in Gwangju. PM-10 samples were collected from September 2021 to August 2022 from three sampling sites, one located in each of the following areas: green, residential, and industrial. The average concentrations of PAHs were found to be higher in the industrial area (9.75±6.51 ng/㎥) than in the green (6.90±2.41 ng/㎥) and residential (6.74±2.38 ng/㎥) areas. Throughout the year and across all sites, five-ring PAHs accounted for the largest proportion (29.8-34.5%) of all PAHs. The concentrations of PAHs showed distinct seasonal variations, with the highest concentration observed in winter, followed by autumn, spring, and summer. Source apportionment analyses were performed using diagnostic ratios and principal component analyses, which indicated that coal/biomass combustion and vehicle emissions were the primary sources of PAHs in PM-10. The incremental lifetime cancer risk was estimated for all age groups at all sampling sites, and the results revealed a much lower risk level than the standard acceptable risk level (1×10^-6).

• 한국지리정보학회지
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• 제15권2호
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• pp.12-22
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• 2012

본 연구는 부산시역내 미 집행된 공공공지 145개소에 대한 실태분석 및 이용현황을 살펴보고자 하였다. 따라서 우리는 미집행 공공공지를 용도지역별, 면적별, 형태별, 조성계획 수립유무에 따라 분석하였다. 부산시역내 미집행 공공공지시설의 용도지역별 분포에서는 주거지역내 포함된 공공공지가 다수를 차지하였으며, 특히 제3종 일반주거지역의 비율이 높은 편이었다. 형태별 분포에서는 선형이 가장 많이 나타났으며, 부정형과 정형의 순으로 조사되었다. 미집행 공공공지시설의 활용계획 수립유무를 보면, 전체 미집행 공공공지 중 대부분이 조성계획이 수립되지 않은 상태이며, 계획이 수립된 경우는 녹지 및 쉼터가 가장 높은 비율을 차지하였다.

• The Journal of Asian Finance, Economics and Business
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• 제7권12호
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• pp.869-875
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• 2020

As a basic element for sustainable development, the residential housing industry is vital and fundamental for every country in the world. Therefore, this study examines the impacts of financial considerations on house purchase decisions by housing investors in Auckland, New Zealand. 110 completed questionnaires were statistically analyzed. For testing the proposed hypotheses, Structural Equation Modelling (SEM) was used. The results show that house prices, income, and credit accessibility significantly influence housing investors' purchase decisions in a positive direction. It appears that more expensive houses offer more promising returns such that housing investors having higher levels of income and access to loans are brave enough to invest in such houses. This study aims to present the key factors influencing house purchase decisions from the viewpoint of housing investors as fundamental groups of stakeholders in the property market, which is rarely examined in previous studies. The implication of this study is to provide guidelines for housing regulators in New Zealand to develop affordable housing prices through the availability of land banks. This study also offers practical contributions to housing investors, particularly by providing key guidelines to make effective investment decisions.

• 한국조경학회지
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• 제19권3호
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• pp.16-26
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• 1991

The traditional housing of Cheju Island has been steadily researched, but from the point of an environmental view which has been neglectly treated all the while, the formative process of the housing and its relationship to the structure of a village are studied, so the writer summarized the relation to the housing type. To study the peculiarity of the physical space, a type of a way, and element of the spatial structure, by stage and a type of the arrangement of the residential space are researched and analyzed, and to understand the plane peculiarity, the distribution of the plane type has been studied. In consequence, the housing and the structure and the form of the village have an organic relation each other and have been made under a very diverse and mixed background, we can find. Especially, the element of the natural environment acts as an important element which decides the type of life and the residential type. The arrangement of buildings is gradually free from the traditional type, but a traditional type of "Three-Room House" is kept well in spite of a change of the plane type.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2009년도 춘계학술대회 논문집
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• pp.731-734
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• 2009

KIER has been developed a compact and highly efficient fuel processor which is one of the key component of the residential PEM fuel cells system. The fuel processor uses methane steam reforming to convert natural gas to a mixture of water, hydrogen, carbon dioxide, carbon monoxide and unreacted methane. Then carbon monoxide is converted to carbon dioxide in water-gas-shift reactor and preferential oxidation reactor. A start-up time of the fuel processor is about 1h and CO concentration among the final product is maintained less than 5 vol. ppm. To achieve high thermal efficiency of 80% on a LHV basis, an optimal thermal network was designed. Internal heat exchange of the fuel processor is so efficient that the temperature of the reformed gas and the flue gas at the exit of the fuel processor remains less than $100^{\circ}C$. A compact design considering a mixing and distribution of the feed was applied to reduce the reactor volume. The current volume of the fuel processor is 17L with insulation.

• 한국대기환경학회지
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• 제5권2호
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• pp.12-20
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• 1989

Distribution of benzo(a)pyrene (BaP) in Seoul surface soils was investigated with a simple micro-analytical method consisting of ultrasonic extraction, one-dimensional dual band thin-layer chromatographic separation (TLC) and spectrofluorometric determination. The TLC was done in the following condition: thin-layer plate; Kieselguhr G/Acetylated cellulose, Developer; 1st; ether, 2nd; methanol-ether-water (4:4:1, V/V). The results thus obtained were as follows; 1. All the samples collected from various areas were contained detectable amount of benzo(a)pyrene. The range and average of benzo(a)pyrene contents in Seoul areas are 0.20 $\sim$5.90ppm and 1.01 ppm, respectively. 2. Benzo(a)pyrene contents in soils obtained from commercial areas were much higher than those in industrial and residential areas. The contents range in commercial, industrial, and residential areas are 0.31 $\sim$ 5.90 ppm, 0.36 $\sim$ 1.22 ppm and 0.20 $\sim$ 0.67 ppm, respectively. 3. Benzo(a)pyrene contents in soils from major roads were far higher than those from side or park roads. The ranges of benzo(a)pyrene contents in major, park and side road are 0.40 $\sim$ 5.9 ppm, 0.20 $\sim$ 0.70 ppm, 0.31 $\sim$ 1.30 ppm, respectively. These findings suggest strongly that surface soils in Seoul city are polluted by benzo(a)pyrene probably emitted automobiles.

• 한국지반공학회논문집
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• 제20권7호
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• pp.33-44
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• 2004

지진시 측정되는 strong motion 데이터와 시설물의 손상의 상관관계를 구하기 위하여 본 연구를 수행하였다. 지진시 측정된 시간 - 지진강도 관계와 측정위치들이 포함된 대규모 지형정보시스템(GIS) 데이터에 대한 분석에 Kriging 공간 통계분석법을 사용함으로써 첨두지반속도(PGV)와 파이프라인 및 건물의 손상정도의 관계를 구할 수 있었으며, 특히, Kriging법은 측정치에 포함된 오차 등 불확실한 요소들을 고려한 $90\%$의 신뢰도에 해당하는 지진강도-손상 관계를 구할 수 있어서 역거리 제곱법 등 다른 공간데이터 분석법에 비하여 우수한 방법이었다.