• 한국물환경학회지
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• 제31권1호
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• pp.35-41
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• 2015

This study focuses on whether a physical habitat model, River2D, is useful to assess and design stream restoration. To achieve the aim, the habitat suitability for Zacco Platypus was analyzed using River2D at midstream of the Anyang-Cheon through modifying the low flow channel and changing the flow discharge. The River2D simulation results show that the inhabited environment for Zacco Platypus is improved by increasing the sinuosity of the low flow channel, and vice versa. Also the inhabited environment for Zacco Platypus gets worse when there is no additional flow for maintenance water supply at the stream flowing through cities. In this respect, the physical habitat simulation study based on the River2D model is useful because it provides a practical guidance in designing stream restoration.

• 한국건설관리학회논문집
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• 제14권2호
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• pp.141-149
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• 2013

임대시장의 경쟁이 점점 치열해지고 빌딩의 수익성을 고려하게 되면서, 높은 임대수익과 노후 건물의 이미지 개선 및 유지관리 측면을 동시에 충족할 수 있는 재실 리모델링에 대한 관심이 증가하고 있다. 특히 도심지에 위치한 노후화된 중/고층 오피스, 상가, 호텔, 병원 등의 건물은 지속적인 사용을 통한 시설물 가치 유지와 안정적인 임대수입 보장 및 시설물 운영의 필요성 등의 이유로 인하여, 거주자 재실상태의 리모델링이 전체 거주자 이주 후의 전체 공실 리모델링이나 재건축과 비교할 때 많은 장점을 가지고 있다. 그러나 재실 리모델링은 기존의 재건축, 전체 공실 리모델링과 비교하여 훨씬 더 제한된 시간과 공간의 작업환경 하에서, 거주자의 안전을 고려하며 거주자 민원 발생의 요인을 줄이는 방법으로 공사를 진행해야하는 어려움이 있다. 이에 본 연구에서는 재실 리모델링 공정관리에 대한 체계성 확보를 위하여 거주자 재실에 따른 복합적인 제약조건들을 해체, 신축, 재실, 이주 과정에 통합적으로 반영할 수 있는 공정계획 기법을 제안하고, 기존의 공정관리 시스템과의 연계성을 위하여 MS-Project로 공정표현 방법을 제시하였다.

• 한국생활과학회:학술대회논문집
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• 한국생활과학회 2010년도 하계학술대회
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• pp.186-187
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• 2010

• Journal of Ecology and Environment
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• 제32권2호
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• pp.83-86
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• 2009

We conducted a landscape analysis to investigate the possibility of adverse effects of anthropogenic light sources, such as roads and residential buildings, on Lethocerus deyrollei on Jeju Island, Wetlands inhabited by L. deyrollei had fewer anthropogenic structures within a 3 km radius that had the potential to produce artificial light at night than wetlands not inhabited by L. deyrollei, In particular, the presence of artificial lights within a 1 km radius appears to reduce the probability of inhabitation by L. deyrollei, Our results suggest that artificial light sources may be critical determinants of L. deyrollei inhabitation patterns in a landscape, and that habitats that have a buffer area of at least 600$\sim$700 m radius free from residential buildings are the most appropriate habitats for L. deyrollei.

• International Journal of Contents
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• 제11권1호
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• pp.21-30
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• 2015

A simulated realistic virtual environment is inhabited by autonomous cyber-humans who play the roles of agents in events. A key element, which enables this realism, is the historical context formed by time and space. A knowledge-representation scheme, composed of both spatial and temporal aspects needed by the agent to respond to dynamically changing situations, is essential for the design of a realistic virtual agent. In this work, spatial and temporal aspects of dynamic situations in the virtual environment have been formalized as a key component of our knowledge-representation scheme. This scheme provides a mathematical framework to construct realistic virtual situations that change with time, and background knowledge for agents in the simulated environment to deduce new pieces of information and plan against changing situations.

• 한국환경보건학회지
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• 제13권1호
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• pp.1-5
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• 1987

The study on shellfish fauna around eleven artificial lakes was carried out from April to September in 1986. The identified shellfishes in total surveyed area are composed of 13 species, 6 families, 4 orders, 2 classes and among them, the dominant species was Semisulcospira forticosta. Corbicula japonica which had been inhabited in Paltangho was collected in Chunchonho and Uiamho in this study. Consequently, the distributional area was gone up north. Especially, Radix auricularia, Parafossarulus manchuricus and Austropeplea ollula were collected in Paltangho and Uiamho are indicators of $\alpha$-mesosaprobe. Therefore it is necessary the countermearsure on management of water quality for the security of the source of water supply.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2007년도 학술발표회 논문집
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• pp.22-30
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• 2007

Nihonbashi River takes more time to discharge water pollution because it runs low-lying areas and is easy to affect tidal flow from downstream. After rainfall, the water environment of the river has become worse. Even though the river is located in the important metropolitan area in Tokyo, it dose not have any connection with people's lives. We took Nihonbashi River as an example to consider methods for river restoration of improving water quality and river environment in densely inhabited urban areas. Especially, the major issue of river restoration is how smoothly and quickly discharges water pollution which flows into with river flow. The conclusion of this project is the effectiveness of improvement of water environment to construct of rock gates in Nihonbashi River and Kanda River to control inflows from upstream and tidal flows from downstream.

• 한국환경생태학회지
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• 제28권6호
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• pp.697-704
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• 2014

제주도 한라산은 나비 학자들로부터 주요 관심의 대상지로 남방계와 북방계의 나비가 서식하고 있는 것으로 알려져 있다. 본 연구는 2013년 5월부터 9월까지 월별로 선조사법으로 모니터링하여 각 구간별 나비군집과 유사도를 분석하고 과거 기록과 비교하여 고도분포의 변화를 살펴보았다. 그 결과 총 5과 26종 3,397개체의 나비류가 조사되었다. 이중 상위 4종(가락지나비, 산굴뚝나비, 먹그늘나비, 조흰뱀눈나비)가 2,578개체(75.9%)로 높은 비율을 차지하여 한라산의 나비는 초지대에서 서식하는 특정종의 비율이 매우 높은 것으로 나타났다. 한라산 나비 유사도는 교목층의 수관부와 열린 초지대와 같은 단일경관지역보다는 수관부와 열린 초지 공간이 함께 있는 지역에서 유사도가 높게 나타나고 있다. 고도별 나비분포는 해발 1,665~1,700m에서 가장 많은 종수와 개체수가 관찰되어 한라산 백록담 아래에 형성된 열린 초지공간이 주요 서식지로 나타났다. 또한 아고산대에 서식하던 종들은 고도가 좀 더 높은 쪽으로 이동하고 낮은 지역에 서식하던 종들이 새롭게 아고산대에서 관찰되는 것으로 나타났다.

• Ocean and Polar Research
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• 제24권1호
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• pp.47-53
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• 2002

To evaluate the effect of reed population on the distribution and activities of microorganisms, vertical distribution of heterotrophic bacteria, degradation rate of cellulose, extracellular aminopeptidase activity (APA) and metabolic diversity based on GN2 Microlog plate were measured at two salt marsh stations in Hogok-ri, Namyang Bay, west coast of Korea. The number of heterotrophic bacteria at station 1 (reed population inhabited area) showed 2 to 6 times higher than that of station 2 (exposed area) with exception in the surface layer. Cellulose degradation rates in station 1 showed more than 50%. month-I and higher than that of station 2 (10.2 to 38.4%. $month^{-1}$). Yet the APA at two stations did not show difference except surface layer and suggested that APA might not be a significant factor in degrading marsh plant debris. Lipid class compounds, cell wall polymers and L-alanine were widely used by microorganisms. The number and activities of bacterial populations especially concerned in plant debris degradation seemed to be stimulated by the reed communities.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2004년도 임시총회 및 추계학술발표회
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• pp.20-24
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• 2004

The aim of this study was to analyse the cost-benefit-ratio of a soil remediation project. The target of the study was the 'Altablagerung Osnabrueck-Wueste' the largest inhabited former landfill site in Germany. The determination of benefit resulting from the soil remediation was quantified with the help of willingness-to-pay(WTP) analysis (contingent valuation method, CVM). 400 households participated in the survey. The average WTP was 6.5 Euro per household per month or 78 Euro per house-hold per year. The projected benefit generated by the remediation (consumer value) for the population in the landfill area was determined to be 0.7 million Euro per year. Factors which influence the will-ingness to pay were evaluated. The most important factors were age, garden use and the prevailing concern about personal health. A computation of the cost-benefit relationship was made on the basis of three different scenarios, which differed in terms of the projected benefits. Finally the economical efficiency of the project was determined. With a projection of 18 years and upwards the remediation of the soil is economically worthwhile.