• 한국경제지리학회지
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• 제18권1호
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• pp.76-86
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• 2015

본 연구는 서울시 노원구 지역을 대상으로 차량 급조폭발물(IED)을 이용한 테러 발생 시 잠재피해인구를 추정하는 방법을 제시하였다. 정사영상을 바탕으로 객체기반 건물추출법을 활용하여 아파트의 면적을 구하였고, 고도자료를 바탕으로 건물의 높이와 층수를 추정하였다. 연면적기반 건물인구 추정법을 이용하여 각 아파트에 대한 거주인구를 추정한 후, 시나리오 분석법을 통해 연구지역 내 인구밀집지역인 지하철역을 중심으로 테러 발생 시 잠재적 피해인구를 추정하였다. 차량 급조폭발물(IED)을 이용한 테러 피해는 적재 가능한 폭약 량에 큰 영향을 받는 바, 테러에 이용 될 수 있는 차량의 종류에 따라 테러 발생 시 잠재적인 피해인구를 산출하였다. 분석결과, 노원구 마들역 주변에서 테러발생 시 가장 큰 잠재피해인구가 발생할 것으로 추정되었다. 본 연구에서 사용한 방법은 차후 연구에서 대단위 지역의 인구분포 추정 및 재난 피해 분석에 활용할 수 있을 것으로 기대된다.

• 한국지리정보학회지
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• 제17권4호
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• pp.167-178
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• 2014

수도권의 과도한 집중에 따른 부작용을 해소하고 국가 균형 발전 및 국가경제력 강화를 위하여 2012년 출범한 세종시는 대규모 택지개발이 급격한 개발속도로 이루어지면 주변지역 공간구조의 변화가 예상된다. 본 연구는 세종시 출범에 따른 인접지역의 공간구조 변화를 측정하기 위한 일환으로 공간적 상호작용 측면에서 접근하였다. 분석은 Accessibility 모델을 이용하여 미래 공간 상호작용을 위한 잠재력인 인구잠재력을 계산하고, 인구잠재력을 지표로 활용하여 공간패턴분석기법에 적용함으로써 세종시 건설 전후 인접지역들의 공간적 상호작용 결과를 정량적 정성적으로 해석하였다. 분석결과 1995년 이후 대상지역 인구잠재력의 영향범위는 지속적으로 감소하는 것으로 나타났으며, 2013년에는 천안시를 중심으로 인구가 집중하여 인구잠재력이 분산되는 것으로 나타났다. 세종시는 새로운 인구잠재력 지대로써 주변지역에 대한 구심점 역할을 수행하지 못하는 것으로 나타났지만 세종시의 입주가 얼마 지나지 않은 시점에서의 분석결과 때문으로 판단된다. 따라서 세종시의 계획인구 도달을 위한 노력과 함께 인구증가에 따른 요인들의 변화와 주변 도시들의 공간구조변화에 대한 지속적인 모니터링이 필요하다고 하겠다.

• 분석과 대안
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• 제4권2호
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• pp.71-102
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• 2020

This study analyzes the effect of demographic changes on economic growth. We use the supply-side output identity to forecast the growth potential of the Korean economy. According to the results, even based on optimistic assumptions and prospects, the economic growth rate is likely to fall drastically starting in 2020. Of course, to maintain growth potential, efforts to increase productivity are necessary. However, given the historical experience of developed countries, it is not clear whether the huge trend of demographic change can be offset by efforts to increase productivity. In the so-called '30-50 club' countries, both labor productivity and growth rate tend to fall after reaching the per capita income of $30,000. The degree of decline in the growth rate is closely related to changes in the working age population and the prime-age workforce. The results are similar when tracking the path of changes in total factor productivities of the economy. When a certain level of income is reached, the increase in total factor productivity also tends to slow down. The ripple effects of rapid changes in demographics will indeed be extensive. The negative impact is likely to be concentrated at a time when the working age population, the prime-age workforce, and the total population shrink simultaneously. Above all, it is necessary to use the government's fiscal space to block the possibility of a rapid fall in the growth rate. In addition, it is important to continuously implement various reform tasks that should be promoted, such as improving the education system and strengthening the social safety net.

• 환경영향평가
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• 제27권2호
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• pp.194-202
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• 2018

국내 법적인 건강영향평가로서 환경영향평가 내 위생 공중보건 항목의 평가는 특정 개발 사업에서 배출되는 유해대기오염물질 배출량 및 주변 주요 지점의 노출농도 산정, 이를 활용한 위해성 평가로 진행되고 있다. 하지만 개발 사업부지 주변의 노출 가능한 인구집단 규모를 고려하지 못하는 등 개발 사업부지 주변의 수용체 특성은 해당 위해성 평가에서 제대로 반영되지 못하고 있다. 본 논문의 목적은 개발 사업부지 주변의 노출 가능한 인구수를 산정 반영한 위해성 평가를 위해 잠재노출 인구수의 산정 및 이를 실제 위생 공중보건 항목 작성 시 활용하는 방안을 제안하는 것이다. 개발 사업부지 주변의 인구수 산정 관련한 국내 자료 현황을 파악하고 이를 고려한 잠재노출 인구수 산정 알고리즘을 제안하였다. 나아가 산업단지 개발 시 유해대기오염물질 배출을 가정한 사례 분석을 수행하였다. 잠재노출 인구수를 활용한 위해성 평가는 인구집단 위해도 개념이 적용되어야 함을 제시하였으며, 향후 연구로 평가결과에 대한 건강영향 여부의 판단기준 설정이 요구됨을 제안하였다. 또한 본 논문의 잠재노출 인구수 산정방법을 통해 개발사업의 입지제한 도구로의 활용가능성을 제안하였다. 이번 논문은 위생 공중보건 항목 작성 시 개발 사업부지 주변의 수용체 특성을 반영한 위해성 평가를 수행하는 방안을 제시했다는 것에 의미가 있다.

• 한국환경과학회지
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• 제25권3호
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• pp.447-456
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• 2016

Access to clean and affordable water is one of the fundamental human rights because water is essential to life and a foundation for socioeconomic development of any country in the world. Despite the efforts to secure water supply in Burundi, the amount of water supplied by public utilities does not meet the demand of the population because population keeps increasing with fluctuation of weather conditions. This study selected north Bujumbura that is a sprawling new residential area in the western part of Burundi as a case to investigate the potential of rainwater harvesting in meeting water demand of the country. Based on a long-term average monthly precipitation in the region, the rainwater harvesting potential was assessed as a function of roof sizes, number of households, and runoff coefficients of roof materials. For the entire region of north Bujumbura, the current water supply capacity of the local water company combined with the rainwater harvesting potential resulted in the water surplus of $468,604.1m^3/yr$. Although three communes among them still showed water deficit in dry season, they still got help from rainwater to relieve their water shortage. This suggests that at the regional scale, proper storages and water quality control for harvestable rainwater could contribute to relieving the regional water shortage and allow the population growth.

• 한국환경복원기술학회지
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• 제2권2호
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• pp.9-23
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• 1999

Pusan's reputation as the nation's most crowded city in terms of population density is attributable to its huge mountains which allow only small portion of residential area to its large population. Rapid increase of urban population on limited amount of land had naturally led its developments efforts to mountainous area giving rise to the concern of potential landslide. This study on urban Pusan and "Landslide Hazard Map" thereof is prepared in an attempt to avoid disasters created by landslide and also as a reference for city planners. The Map shows that the area covering 38% to 43% of urban Pusan has the potential for landslide. The study also shows that various civil works involving massive land excavation had been more direct cause of landslides in Pusan than such traditional factors as locations, ground slopes, rock types and topography of the area concerned.

• Animal cells and systems
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• 제15권1호
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• pp.79-84
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• 2011

The status of J stock minke whales (Balaenoptera acutorostrata) was assessed using potential biological removal (PBR) and mortality data. Using the estimated abundance of minke whales in this area (6260; CV = 0.212), the minimum population estimate of the stock was estimated as 5247. The PBR for J stock minke whales was calculated as 52.5 individuals using the minimum population estimate (5247), one-half of the maximum theoretical net productivity rate (0.02) and the recovery factor (0.5). The estimated mean annual level of anthropogenic mortality was 270.4 individuals. Thus, the status of this stock was considered as strategic. However, fortunately, the abundance of this population in the East Sea from 2000 to 2008 showed an increasing trend (rate of increase 0.0488; annual rate of increase 5.0%) although it is not statistically significant (P > 0.05). The primary sources of anthropogenic mortality were bycatch (set nets, pots and gill nets) and illegal catch. Because of the status of this population, it is urgently necessary to reduce the amount of bycatch and illegal catch of minke whales. Further study needs to use population health and viability analysis for investigating the long-term survival of this population more clearly.

• 한국환경과학회지
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• 제8권5호
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• pp.587-592
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• 1999

The purpose of this study was to identify the controlling factors to construct tidal flat ecosystems having similar characteristics as natural ones. We transplanted the soil in a constructed tidal flat to a natural one and vice versa. Parameters monitored after these transplantations were silt content, organic matter, bacterial population and oxidation-reduction potential. Moreover, the relationship among silt content, organic matter and bacterial population was investigated by laboratory column experiment. The silt content, organic matter, bacterial population and vertical profile of oxidation-reduction potential in the soil transplanted from the constructed tidal flat to the natural one changed to similar values to those in the natural one. On the contrary, all the parameters for the soil transplanted from the natural tidal flat to the constructed one changed to similar values as those in the constructed one. The silt contents in thses two transplanted solis were in proportion to the organic carbon contents and bacterial population. Similarly, the bacterial population in laboratory column experiment increased with the increase in silt and organic matter contents. It seemed to be important to select a place to enhance accumulative of silt and/or to maintain the silt content by hydrodynamic control of seawater in order to construct a tidal flat having similar characteristics as natural one.

• 대한생식의학회:학술대회논문집
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• 대한불임학회 2004년도 제47차 추계학술대회
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• pp.74-75
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• 2004

• Asian-Australasian Journal of Animal Sciences
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• 제10권4호
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• pp.428-434
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• 1997

The effect of genetic diversity in sub-populations on breeding efficiency was examined with prospect of potential crossbreeding. Simulation study of selection was performed for 20 generations with 20 replications each, comparing average breeding values and inbreeding coefficients between the two breeding systemes; single population scheme and two population scheme. The different genetic levels were assumed to be caused by different gene frequencies. Phenotypes of two traits generated polygenic effect with additive 36 loci and residuals distributed normally were selected by selection index procedure. High genetic gain with less inbreeding was clearly recognized in the single population scheme, independently of difference in genetic level, economic weight and genetic correlation. Genetic correlation after selection in the single population scheme was lower than the two population scheme. When crossbreeding between the sub-population was taken into account, superiority of the two population scheme was suggested under those restrictions; difference in genetic level is moderate, selection criterion for the two traits is not far from even economic weight, and genetic correlation is positive with low to moderate value. The use of complementarity increased the possibility of the two population scheme.