• 한국지역지리학회지
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• 제22권4호
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• pp.774-791
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• 2016

최근 아시아인 인구의 교외화 연구에 따르면 이들의 취락 패턴은 과거 이민자들의 격리 과정과는 다른 궤도를 따르며, 또한 소수민족 집단이 집중되는 주거 입지도 상이하여 교외 지역에서 복잡한 민족 모자이크가 재현한다는 것이다. 본 논문은 이를 확인하기 위해 뉴욕 시 외곽에 위치한 웨체스터 카운티의 아시아인 소수민족의 거주지 패턴을 조사하였다. 이 지역의 주요 아시아인 민족인 인도인, 중국인, 필리핀인, 일본인, 한국인 등 5개 주요 집단의 거주지 패턴을 2000년과 2010년 센서스 인구 자료에 기초한 지도화와 병행하여 격리 지수를 이용하여 분석하였다. 이를 통해 이 지역 아시아인 민족 집단의 거주지 분리 현상은 분산된 집중화로 특징을 지울 수 있었다. 또한 각 민족 집단의 인구가 집중하는 근린 사이에 뚜렷한 차이를 발견하였다.

• 자원ㆍ환경경제연구
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• 제9권5호
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• pp.853-876
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• 2000

The purpose of this paper is to come up with the measures for sustainable development of the agricultural sector in store for the strengthened U.N. Framework Convention on Climate Change. We analyze the spillover effects of Methane and Nitrous Oxides taxes (carbon tax) on the Korean agricultural sector. Unlike the other sectors, the agricultural sector has a unique characteristic generating greenhouse gas in the process of production itself even without consuming much fossil fuel. In order to estimate the impacts of those taxes, non-linear optimization method has been used with various assumed scenarios. The production effect, income and' price effect, and greenhouse gas emission reduction effect in the agricultural sector have been estimated through this method. The empirical results show that the paddy sector has a bigger tax effect than the livestock sector. In the paddy sector, the carbon tax has more impacts in the suburban areas than in the rural areas, while the swine farming section in the livestock sector has a conspicuous income effect in the midst of low greenhouse gas emission effect. These results allude us to apply graded tax rates to the crop, the livestock, and the region of different kind. Even if the agricultural sector has a less tax effect when compared with other industrial sectors, an environmental tax might be an effective measure to prevent global warming.

• 지역연구
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• 제6권2호
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• pp.107-121
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• 1990

The structural change of occupational composition with the coming of post-industrial society is most evidently observed in the developed country. Specially representative of social changes is the emergence of new occupational sectors, such as the so-called quaternary and quinary sectors, which are based on the use of information technology and managerial skills. The paper raises the question of how and in what this chage of occupational components in a mtro area affects the existing residential structure over the period. In order to extend the discussion of the question, the related hypothetical statements on urban spatial impact due to transformation of the society have xtnsively considered and identified a possible multicenter structure concentration and deconcentration of new jobs and population over the metro area. For further examination, the renowned high tech city of Minneaplis -St. Paul has been selected and the occupational labour forces data for 1960 and 1980 analyzed. As a whole, this area has experienced a dispersal and reconcentration of population in new patterns which have resulted from changes in the occupational structure. In particular, the residential area of white-coller workers(the quaternary / quinary or information workers) has expanded into the city from a suburban core area. In this process, a large proportion of the manual-worker's residential areas in the central city either disappeared or diminished. Consequently, other isolated centers created by the manualworker residents are emerging in both the central city and suburbs. Thus, the development of mulitple centers or cores based on the distribution of occupational characteristics can be considered as a typical ongoing pattern of metro areas in the Unite States.

• KIEAE Journal
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• 제17권1호
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• pp.49-54
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• 2017

Purpose: Temperature in urban areas increase much more than suburban areas and it is called urban heat island (UHI) phenomenon. There are several solutions to control UHI phenomenon such as green roof system, water space construction, and cool roof system. However, application of green roof system and cool roof system to some of the buildings which compose the city has a critical limit. Therefore, in order to diminish the temperature rising and UHI phenomenon due to climate change of the city, it needs to approach from the viewpoint of site or city, rather than the viewpoint of individual buildings. This study is aims at analyzing UHI phenomenon by characteristics of surface materials and suggesting the solutions to reduce UHI phenomenon by types of complex. Method: Literature reviews were conducted to analyze the cause, mitigating plan, and recent trends of UHI phenomenon. For the simulation analysis, the type of complex was classified 3 representative complex. Based on measured reflectivity, simulation about UHI phenomenon was conducted by setting 4 strategies; albedo of roof, road pavement, green roof system, and vegetating around buildings. Result: As the results of simulating the UHI reduction factor by types of complex, it showed that the effect of temperature reduction on the building roof layer is more effective than adjusting the reflectivity of buildings such as green roof system, planting near the buildings in both the detached house complex, apartment complex, and commercial complex.

• 농업과학연구
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• 제47권1호
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• pp.95-104
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• 2020

The Ministry of Agriculture, Food, and Rural Affairs is currently pushing forward policies targeting the Rural Convergence Industry initiative to incubate the front-runners of the '6th industry', to increase off-farm income, to create rural jobs for elderly, and to create women-based farms. As a result, in 2017, a total of 11,604 Rural Convergence Industries were in business, and the goods produced from those industries were diverse. However, the quality and safety of those products are not being checked and managed thoroughly, which has caused consumers to not trust products made from the Rural Convergence Industries. Through a survey and the ordering logit model, this study analyzed consumer perception of the safety and quality of goods from the Rural Convergence Industries. The analysis revealed that we must first raise awareness of the importance of rural agriculture areas and the products of the Rural Convergence Industries to uplift consumer perceptions regarding the products produced by the industries. The analysis also revealed that diverse points of distribution (sellers), education on the importance of rural and urban areas, and marketing Rural Convergence Industry products within suburban consumer populations are necessary to increase the consumption of these products.

• 한국통신학회논문지
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• 제19권5호
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• pp.815-821
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• 1994

이동전파신호에서의 단구간 페이딩 현상은 이동국이 이동할 때 집, 건물 등 주변 반사체와 숲과 같은 자연적 방해물에 의한 다중경로 반사파에 의하여 발생하게 된다. 본 논문에서는 대전 및 서울 지역에서 측정하여 얻은 이동전파신호의 전계강도 측적데이타를 이용하여 확률밀도함수(PDF), 레벨 교차율(LCR), 페이드의 깊이와 넓이에 대하여 분석하였다. 분석 결과, 평균치가 일정한 작은 구간내에서의 신호 변화에 대한 통계적 분포는 레일리 분포를 따른다. 페이트 깊이는 위치에 대한 크기의 별화는 심하나 도심지역이나 변두리지역등 지역적 특성에 따른 깊이차이는 거의 없었으며, 페이트 넓이는 주변 구조물과 지역특성에 따라 변화가 매우 심하였다. 또한 레벨 교차율은 평균치 근처에서 최대가 되는 것을 볼 수 있었다.

• 토지주택연구
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• 제3권2호
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• pp.111-116
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• 2012

The primary purposes of this study are to identify the characteristics of land development in urban area through GIS and remote sensing techniques and to provide useful implications for urban spatial policy. To perform these tasks, Daegu metropolitan city and its vicinities were selected as a study area, and remote sensing data and attributed data were collected, organized and analyzed. This study focuses on the following three steps. First, it identifies the characteristics of land development in urban areas by utilizing multi-temporal satellite image data (Landsat TM, 1980, 1985, 1990, 1995, 2000 and 2005). Second, it tries to find an answer on a critical question concerning land use conversion, i.e., which land use leads expansion of urban area? Third, it derives implications for urban spatial policies based on these findings. The characteristics of the urban extents tell us that the main land use converted into urban use from non-urban uses is green areas. The public sector, central and local governments, leads the land use conversions of suburban lands as exclusive legal body to issue permission of land use change. Based on these findings, this study concludes that the more systematic and technically advanced management tools should be utilized for more effective spatial management for urban growth.

• 한국지구과학회지
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• 제39권1호
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• pp.89-102
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• 2018

차세대도시농림융합기상사업단의 에너지수지타워 관측자료를 이용하여 수도권 기상과 복사특성에 대하여 분석하였다. 서울 수도권에 위치한 총 14개 에너지수지타워의 기온, 풍속, 상대습도, 지표면 온도, 강수량, 단파 및 장파 복사량과 복사관측자료를 이용하여 산출한 알베도와 방출률을 분석하였다. 월별 자료에 따르면, 도시에 위치한 중랑지점에서 알베도는 낮고 방출률은 높은 특성을 나타냈고 교외지역인 부천지점에서는 반대의 특성이 나타났다. 자연적인 지표상태에서는 태양복사에너지를 효과적으로 반사하여 대부분 중랑지점보다 알베도가 높게 나타났다. 연 평균 기온이 비교적 높게 나타난 지점들은 서울 도심에 위치하고 있었으며, 알베도가 대체적으로 낮게 분포되었다. 가좌지점과 뚝섬지점은 관측 기온이 높았지만, 관측소 주변 유리벽 건물 및 한강으로 둘러싸인 환경으로 알베도가 비교적 높게 나타났다. 교외지역에 위치하고, 기온이 낮았던 지점들은 대체로 낮은 방출률을 나타냈다. 그 중 부천지점에서는 다소 높은 방출률이 나타났는데, 이는 관측지점 주변이 논과 밭으로 구성되어 있어 교외지역의 관측지점보다 지표면 온도가 상대적으로 낮게 관측되었기 때문이다. 결과적으로 도심지일수록 알베도는 감소하고, 방출률은 증가하는 경향을 확인할 수 있다. 또한, 서울 지역의 순 복사량이 $100Wm^{-2}$ 이하로 나타나 에너지가 대기 중에 흡수된 것으로 볼 수 있다.

• 한국환경복원기술학회지
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• 제27권2호
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• pp.55-65
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• 2024

This study aimed to figure out diel activity patterns of water deer and wild boar, whose habitat is disturbed by human activity in a suburban area. Photographic data of water deer and wild boar collected by 18 camera traps from January 2021 to November 2022 was categorized into four diel periods (dawn, day, dusk, and night), and converted into frequencies per 100 CTD (Camera Trap-Days) for seasonal and spatial diel activity pattern analysis. Water deer exhibited intense nocturnality in fall, and wild boar did in fall and winter. During the fall, water deer's night-time capture rate was the highest (61.9%), and day-time photographic rate was the lowest (13.9%) among other seasons. During the fall and winter, wild boar's night-time photographic rate was relatively high (77.6%, 78.0%, respectively), and day-time photographic rate was relatively low (0.7%, 1.8%) in comparison with other seasons. In spatial diel activity analysis, both water deer and wild boar showed a tendency to avoid humans, especially near trails during day-time hours. The day-time photographic rate of water deer in trail-near group was 12.1% and trail-far group was 24.6%. The day-time photographic rate of wild boar was 3.4%, 5.7%, respectively. Because the diel activity patterns of wildlife reflect human disturbance, this study provides useful ecological information for developing appropriate management plans for the coexistence of water deer and wild boar in suburban areas.

• Journal of Mechanical Science and Technology
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• 제20권9호
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• pp.1346-1354
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• 2006

Excessive acceleration experienced at the top floors in a building during wind storms affect the serviceability of the building with respect to occupant comfort and discomfort. Tuned liquid damper (TLD) and multiple tuned liquid damper (MTLD), which are passive control devices consisting of a rigid tank filled with liquid, are used to suppress vibration of structures. These TLD and MTLD offer several potential advantages-low costs, easy installation in existing structures and effectiveness even for small-amplitude vibrations. This study carries out a theoretical estimation of the most effective damping ratios that can be achieved by TLD and MTLD. Damping by TLD an MTLD reduced the frequency response of high-rise buildings by approximately 40% in urban and suburban areas.