• 한국주거학회논문집
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• 제27권1호
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• pp.1-11
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• 2016

Based on residents' survey data in Seoul, this study attempts to empirically answer to four research questions regarding neighborhood relations (NR) which are necessary for community building: How important NR is compared to other social relations, what factors establish NR, how large NR's geographical extent is, and what are major meeting places among neighbors. A series of statistical analyses demonstrates that characteristics of NR vary greatly by family life cycle. In the stage of couple without child, NR has no significant meaning. NR becomes important from the stage of child care, and it is formed through the medium of children, particularly children's schools in the stage of child of elementary school as well as secondary schools. As the result, NR's geographical boundary extends beyond residential block or multi-family housing (apartment) estate while cafe and restaurant serve as dominant meeting places in these life cycle stages. On the contrary, after children are married and leave home, casual encounters resulted from spatial proximity become an important cause of NR. Likewise neighbors' geographical distribution is relatively concentrated within residential block or apartment estate, while community facilities play a role of meeting places as originally planned and designed.

• 환경영향평가
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• 제16권6호
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• pp.485-494
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• 2007

Air pollution and traffic noise from roads distributed near residential area has been a major social problem. In this study, an environmental pollution map for a residential area of Shihung-city was made by an expectation model based on hourly traffic volume change. Using the result from the model, a plan to reduce population in the residential area was established. The result of the modelling is summarized as follows: 1. At peak traffic hours (18 o'clock), 301-500 degree in hazardous and $d_{25}$ degree (25% of the residents are suffering extremely from the noise) in noise pollution were predicted in Jeongwang Main Road in Shihung city. 2. The calculated critical pollutant standard index, PSI showed the air pollution level, especially PM-10 high enough to require re-entrainment. 3. It was expected air pollution would extensively extend over the area distribution of each degree. However, noise pollution problem was limited to the area near roads.

• 한국환경과학회지
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• 제14권7호
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• pp.629-637
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• 2005

Polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) were investigated in soil and pine needle samples taken from 16 sites of industrial and residential areas in Changwon, Korea to assess their distribution levels and to suggest the influence of industrial activities, PCDDs/DFs levels in the soil samples ranged from 0.57 to 20.79 pg I-TEQ/g dry weight with a mean value of 4.20 pg I-TEQ/g dry weight. PCDDs/DFs levels in the pine needle samples ranged from 0.39 to 8.75 pg I-TEQ/g dry weight with a mean value of 4.09 pg I-TEQ/g dry weight. In both soil and pine needle samples, the PCDDs/DFs concentrations in the industrial area sites were higher than those in the residential area sites. Homologue profiles in pine needle samples showed different patterns compared with soil samples. Based on the results of principal component analysis (PCA), it was confirmed that pine needles reflected a direct influence from local potential sources of PCDDs/DFs, showing a much higher degree of reflection than in soils. Pine needles are very useful as an indicator for monitoring or estimating the contamination of PCDDs/DFs in other areas which have been impacted by point pollution sources.

• 대한지리학회지
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• 제48권3호
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• pp.402-416
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• 2013

본 논문은 1985년부터 2010년까지 수도권 고령인구의 공간적 분포 패턴의 변화를 고령화수준에 따라 파악하고, 이와 관련하여 2010년 시점에서 고령자 가구의 주거 특성을 해석하고자 한 것이다. 고령화수준은 고령화지역, 고령지역, 초고령지역으로 구분하여 고찰하였으며, 고령자 가구의 주거 특성은 주택유형, 주택점유형태, 주택연한 등의 변수를 이용하여 해석하였다. 수도권의 고령화는 서울과 인접하지 않은 수도권 외곽지역부터 진행되었다. 서울과 인천은 고령화가 도심부에서부터 외곽으로 진행되는 경향을 보인다. 고령자 가구는 자가 소유의 단독주택에서, 그리고 건축 연한이 20년 이상인 주택에 거주하는 비율이 높았으며, 수도권의 외곽지역으로 갈수록 이런 주거 특성이 강하다.

• 한국식품영양과학회지
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• 제29권2호
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• pp.257-267
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• 2000

This study was carried out to compare the nutrients intakes, factors to influence on nutrient intake and frequency of food group intake between the two gruops of elderly living in Yangcheon, Seoul(n=105) and in Yongin(n=159). The results obtained by cross-sectional survey using questionnaires were as follows. 1) The average age of the subjects was 71.9 and there was no significant difference in age and gender distribution according to the residential areas. 2) The intakes of energy, protein, Fe, vitamin A, niacin, thiamin, riboflavin, and vitamin C were significantly higher in the urban elderly than those of the rural elderly(p<0.05).3) The average daily intakes of energy, protein, Ca and Fe of the subjects were lower than those of the Korean RDAs in general and the rural elderly showed more severe deficiencies. 4) Individual nutrient intakes and food group intakes were related to the pocket money, number of different foods taken daily, education level, residential area, and the degree of exercise. These results suggested the needs of nutrition intervention for the low-income, rural elderly.

• The Journal of Asian Finance, Economics and Business
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• 제8권10호
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• pp.269-283
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• 2021

The government policies and initiatives to guarantee sustainable energy and clean environmental conditions contributed to the introduction of green technology electricity appliances in the market. This study sought to determine the physiological and socio-economics-demographic factors driving residential electricity consumers to use green technology electricity appliances, mainly solar PV, smart meter, electric vehicle, and battery storage technology. By understanding consumer intention, the investors of solar PV, battery storage, electric vehicle, and smart meter can estimate the demand and upscale the market for the corresponding products. For that purpose, the intention to use the solar PV, smart meter, electric vehicle, and battery storage function is developed by utilizing the combination of the theory of planned behavior, technology acceptance, and reasoning action. A reliable and valid structured online questionnaire and stepwise multiple regression are used to identify the possible factors that drive consumer behavior intention. The results show that the social influence, knowledge on RE, and perceived price significantly influence residential consumers' willingness to adopt the technologies offered. The findings of this study suggest that the involvement of NGOs, public figures, and citizens' cooperation are all necessary to spread information about the government's objectives and support Malaysia's present energy and environmental policies.

• 대한전기학회논문지:전력기술부문A
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• 제52권10호
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• pp.584-592
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• 2003

This paper presents a fuzzy-GA method for the allocation and operation of dispersed generator systems(DGs) based on load model in composite distribution systems. Groups of each individual load model consist of residential, industrial, commercial, official and agricultural load. The problem formulation considers an objective to reduce power loss of distribution systems and the constraints such as the number or total capacity of DGs and the deviation of the bus voltage. The main idea of solving fuzzy goal programming is to transform the original objective function and constraints into the equivalent multi-objectives functions with fuzzy sets to evaluate their imprecise nature for the criterion of power loss minimization, the number or total capacity of DGs and the bus voltage deviation, and then solve the problem using genetic algorithm. The method proposed is applied to IEEE 12 bus and 33 bus test systems to demonstrate its effectiveness. .

• 한국농공학회:학술대회논문집
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• 한국농공학회 2005년도 학술발표논문집
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• pp.247-253
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• 2005

In this stydy, the characteristics of the spatial location based on rural environment pollution facilities which can cause environmental pollution and thus lower the value of rural amenity was analyzed. This study showed that livestock feedlot occupied the highest percentage among the facilities analyzed and the size of facilities increased with increasing distance from the residential area. In addition, the facilities showed two typical characteristics in terms of their spatial distribution; uneven and even distribution which are characterized by concentrated distribution in a certain area and by scattered distribution in a wide area, respectively. As the facilities including livestock feedlot have a great potential to cause environmental problem such as air, water, soil and noise pollution, it is necessary to develop systematic plans for the management and improvement of the facilities.

• 전기의세계
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• 제18권2호
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• pp.7-14
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• 1969

From the first customer located right at the substation to the last customer at the end of the line, voltage must be held within close limits, so the voltage regulation is more important than the thermal limit. On a typical distribution system during the peak load period, the voltage drop may be serious enough to cause unsatisfactory operation of home appliances in the residential area, and present many problems to manufacturing industries, where the voltage must be maintained within close limits to insure smooth operation. Among all the factors contributing to voltage drop in the distribution system, the voltage drop in the distribution transformer may account for 30% of this figure. If we can eliminate this factor, the power companies can provide better quality electricity to more customers with the existing distribution facilities, thus saving on initial investment costs. Taking all these problems into consideration, the author undertook the design of a capacitive transformer which would give zero voltage drop at rated load and at 80% lagging power factor while incorporating overload features to withstand 400% overload for at least 100 seconds. The following are the results obtained through design, manufacture and test of an initial experimental transformer built with these specific purposes.

• 한국시뮬레이션학회논문지
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• 제29권1호
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• pp.71-79
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• 2020

현대사회의 도시화 추세가 지속됨에 따라 인구의 집중으로 주거환경에 대한 도시문제의 중요성이 대두되고 있다. 다양한 도시문제 중에서 대표적인 문제 중 하나는 쓰레기 문제로 시민들의 주거환경 악화의 원인이 되며 시정 만족도에 대해 직접적으로 영향을 미치는 요인이다. 이와 같은 쓰레기 문제는 단순히 주거지역의 쓰레기 배출량에 대한 분석으로는 정확히 예측할 수 없으며 쓰레기의 주거지역에 분포하고 있는 거주민의 생활양식과 특징에 대한 분석이 필요하다. 본 연구에서는 주거지역 내의 거주민의 분포에 따라 발생할 수 있는 쓰레기 문제와 이에 대한 만족도 분석을 수행하기 위하여 이산사건 시스템 형식론을 활용한 에이전트 기반 거주민 모델링과 시뮬레이션 환경을 제안한다. 제안하는 연구는 주거민의 시계열적인 특성을 표현하기 위하여 원자모델을 사용하였으며 시뮬레이션 모델의 재사용성을 증대시키기 위한 결합모델을 사용하여 다가구와 다가구 주택을 모의하였다. 또한, 본 연구는 다가구 주택지역에 대한 시뮬레이션 모델링을 진행하고, 시뮬레이션을 수행하였다. 연구결과로 다가구 주택지역의 시뮬레이션에서는 거주민의 특성을 고려한 결과와 그렇지 않은 결과 사이에 뚜렷한 차이점을 발견할 수 있었으며 지역 문화적 특성과 시간적 특성을 고려한 시뮬레이션이 필요함을 확인할 수 있었다.