• 한국농공학회지
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• 제45권6호
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• pp.96-108
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• 2003

Agricultural water occupies the largest portion of total water use in Korea, and generally researches on the development of agricultural water have been stressed on the demand of agricultural water itself. But it is unavoidable to change a policy from the development of water resources to cope with the increase of water demand to the effective management of existing water resources. Evaluation of the decrepitude of irrigation facilities and their reasonable maintenance are important for the effective supply and use of agricultural water. Therefore it is necessary to develop evaluation technique that diagnoses the current condition of irrigation canals and suggest a countermeasure to improve the found problems. 25 items in 6 classes were selected for the evaluation of irrigation canal systems, and the weighted value between the items was calculated using AHP (Analysis Hierarchy Process) method. The current condition of the irrigation facilities was evaluated from the class evaluation marks, and ranking was decided from the total marks between the projects, and finally the priority of the project for the improvement was given.

• 한국수자원학회논문집
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• 제40권10호
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• pp.783-791
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• 2007

본 연구에서는 과학기술부의 21C 프론티어 사업 중 하나인 수자원의 지속적 확보기술개발사업단에서 연구 개발 중인 수자원 확보기술을 대상으로 기술평가 모형을 구축하였다. 이는 개발기술의 가치평가를 통하여 R&D가 효율적으로 사용되고 개발된 기술이 실용화 단계까지 성공적으로 갈 수 있도록 기여함에 있다. 수자원 확보기술의 성격을 반영할 수 있도록 정량적 평가뿐만 아니라 정성적 평가가 모두 가능한 2개의 계층으로 이루어진 평가틀이 구축되었다. 4개의 평가기준과 26개의 평가속성들의 가중치는 계층분석과정(AHP, Analytic Hierarchy Process)기법을 이용하여 산정되었다. 구축된 기술평가틀을 2개의 수자원 확보기술 가치평가에 적용시켜 평가틀이 어떻게 사용될 수 있는지 또한 제시하였다.

• 한국습지학회지
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• 제19권3호
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• pp.311-317
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• 2017

본 연구에서는 낙동강수계에서의 수질 모니터링 자료를 이용하여 수질지수를 산정하고 생활환경기준과 비교를 통해 수질상태를 검토하였다. 수질지수는 환경부에서 현재 시행되고 있는 실시간수질지수(RWQI) 방법인 CCME-WQI을 사용하였으며 수질항목은 pH, DO, EC, 수온, TOC, T-N, T-P에 대해 7개 평가항목으로 선정하였다. 평가기간은 최근 3년간(2013년~2015년)으로 선정하였으며 해당 기간 내 측정된 수질 모니터링 자료를 이용하였다. 평가결과, 전 기간 평가 결과는 지수와 생활환경기준이 비슷한 경향을 보이나 월별 평가는 지수와 BOD, T-P 결과가 다르게 나타났다. 따라서 효율적인 하천관리를 위해서는 단일 수질항목만의 평가보다 복합적인 평가가 보다 필요할 것으로 신뢰성이 있는 것으로 검토되었다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2005년도 춘계 종합학술대회 논문집
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• pp.391-395
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• 2005

본 논문에서는 수질 오염 평가 시스템 개발 과정의 첫 단계로 기존의 수질 오염 측정에 이용해 왔던 평가 기준과 각 기준에 대한 평가 항목을 가지고, 퍼지 적분을 이용하여 평가하는 새로운 시스템을 구현하고자 한다. 수질 오염의 종합 평가는 BOD, COD, SS, T-N, T-P와 같은 속성에 관한 평가치를 종합하여 얻어진다. 이 과정에서 개개의 속성이 서로 독립적인 관계를 유지하는 경우 종합 평가치가 각각의 부분 평가치의 선형 결합의 형태로 표현 될 수 있다. 이에 각 결합 형태에 대한 퍼지 측도를 정의하고, 이에 퍼지 적분을 적용하여 보다 안정된 수질오염 평가 시스템을 구현하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1998년도 하계학술대회 논문집 A
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• pp.217-219
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• 1998

Korea Water Resources Corporation (KOWACO) annually supplies about 2 billion Kwh and 7.3 billion $m^3$ with its 10 multi purpose dams and 20 water supply offices. For the proper control and management of the above utilities, sequential control equipment and SCADA/DCS have been operated and maintained. In this paper, 8 control system evaluations for hydropower dam, water supply, electric power and subway projects during 1984-1997 were reviewed and analyzed. The systematic evaluation method has been established in the points of the purpose, method, procedure, evaluation team, evaluation criteria, total evaluation table and the contents of final recommendation report. With keeping in mind the essential points, it is expected for the more effective and fair evaluation of bids.

• 한국환경과학회지
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• 제8권5호
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• pp.601-605
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• 1999

This study has been performed to evaluate mineral water quality by using four parameters [Mg]/[Ca], [Na]/[K], [Mg]+[Ca]/[Na]+[K] and total hardness(as CaCO3 mg/ℓ). The four parameters has been ploted in a general scale and logarithmic scale, respectively. The method of general scale is not applicable for evaluation on several parameters. Therefore, the logarithmic scale is applied instead to settle the problem. The evaluation of the water quality is based on standard sample S, and the results of the 6 domestics and 5 overseas sample evaluation are as follow. At present, evaluation of the water quality on the mineral water can be done by using four parameters calculated from only cation concentration printed on the bottle's marking.

• Geomechanics and Engineering
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• 제8권5호
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• pp.631-647
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• 2015

Engineers may encounter unpredictable cavities, sinkholes and karst conduits while tunneling in karst area, and water inrush disaster frequently occurs and endanger the construction safety, resulting in huge casualties and economic loss. Therefore, an optimal classification method based on grey system theory (GST) is established and applied to accurately predict the occurrence probability of water inrush. Considering the weights of evaluation indices, an improved formula is applied to calculate the grey relational grade. Two evaluation indices systems are proposed for risk assessment of water inrush in design stage and construction stage, respectively, and the evaluation indices are quantitatively graded according to four risk grades. To verify the accuracy and feasibility of optimal classification method, comparisons of the evaluation results derived from the aforementioned method and attribute synthetic evaluation system are made. Furthermore, evaluation of engineering practice is carried through with the Xiakou Tunnel as a case study, and the evaluation result is generally in good agreement with the field-observed result. This risk assessment methodology provides a powerful tool with which engineers can systematically evaluate the risk of water inrush in karst tunnels.

• 한국수자원학회논문집
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• 제38권1호
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• pp.49-57
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• 2005

본 연구에서는 홍천강, 미호천, 내성천을 평가 대상하천으로 선정하여, '하천의 생물서식처 복원을 위한 하천 자연도평가 : I. 평가방법의 제안'에 따라 하천자연도평가를 시행하였다. 하천자연도의 종합평가결과 홍천강은 2등급(평균 1.92), 미호천은 2등급(평균 1.43), 내성천은 2등급(평균 2.31)으로 평가되었다. 수질과 하천자연도평가의 상관관계를 비교ㆍ분석한 결과, 수질과 하천자연도 종합평가결과의 상관계수가 0.575로 상관성이 매우 작게 분석되어, 하천자연도평가가 수질평가와 다른 관점에서 하천의 생태계를 평가하는 지표로 활용이 가능한 것으로 분석되었다.는 지표로 활용이 가능한 것으로 분석되었다.

• 한국도로학회논문집
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• 제15권3호
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• pp.127-135
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• 2013

PURPOSES : The purpose of this study is development of automatic equipment to measure the road water-reservoir which can be one of factors for road traffic safety inspection and its application to safety analysis. METHODS : The scopes of this study are the examination of the riskiness and location of road water-reservoir through literature review, development of appropriate sensor and automatic equipment to survey the road water-reservoir and evaluation of field application. RESULTS: The laser lighting and IR camera were selected to develop the equipment. It was found from the field calibration that there is a high correlation between rutting and road water-reservoir and road water-reservoir caused by rutting can be correctly calculated. About 20.2km of national highway were inspected for case study and field application. It was found from correlation of traffic incident that 2.08km of the latent length for water-reservoir which is related to 12 traffic incidents were analyzed. CONCLUSIONS : This technique can be utilized evaluation method for road condition such as road water-reservoir for conventional evaluation system such as road traffic safety assessment and safety analysis and it can be use to new evaluation system to apply various road condition and traffic condition.

• Membrane and Water Treatment
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• 제10권2호
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• pp.149-154
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• 2019

The information matter-element system was built to assess safety of water source. Based on the thought of multiindex fusion, fuzzy matter-element model evaluating water source behavior was constructed by matter-element transform. This model can process comprehensively hydrogeological data, ecological environment, water pollution, surface disturbance, and so on. Water source safety behavior can be described by the qualitative and quantitative manners. According to the development trend of quantitative results, water source safety behavior can be expressed dynamically. As an example, the proposed method was used to assess safety status of 7 water sources in the region. The numerical example shows that the proposed method is feasible and effective, and the evaluation results are reasonable.