• 제목/요약/키워드: Feasibility assessment

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해상풍력단지 입지전략 GIS 분석 (GIS Analysis on Siting Strategy of Offshore Wind Farm)

  • 송규봉;김현구
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2009년도 춘계학술대회 논문집
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    • pp.460-462
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    • 2009
  • This study has analyzed the scale, location, resource potential and feasibility of offshore wind farm scientifically and systematically based on the national wind map and GIS (Geographic Information System). For long-term wind power development, this study pursues siting strategy building, selection of target area and deciding development priority as well as the presenting a basis for assessment that are necessary for policy decision making by making theme layers under GIS environment. According to the analysis after organizing technological development by stages, even if only the most suitable sites are developed among the area of offshore wind farm candidates that can be developed under the current technological standard, it has been evaluated as being able to develop about 3 times of the wind power dissemination target until 2012. It is expected that about 5% of territorial water area can be developed in a short-term future while the southern offshore area possessing relatively favorable wind resource than the western offshore has been identified as the most feasible site. While about 23% of territorial water area has been classified as potential area for offshore wind farm development in a long-term future, even Jeju Island and offshore of Ulsan possessing excellent wind resource have been analyzed as feasible sites. The feasibility assessment of offshore wind farm development established by this study is expected to assist national strategy building for accomplishing the wind power dissemination target.

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Feasibility of Household Surveys for Population Risk Assessment of Cancer and Cancer Registration Support

  • Habib, Omran S;Hussain, Riyadh Abdul-Ameer
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권sup3호
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    • pp.213-218
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    • 2016
  • Cancer is a major health problem in the Arab region including Iraq. An adequate database is essential for effective cancer control strategies. Such a database may be provided through cancer registration but supportive household surveys may be useful. This article reports selected results on the feasibility of household surveys to support and validate cancer registration in Basrah governorate - southern Iraq. A large scale multi-stage cluster sample household survey was carried out in Basrah during 2013. It covered 6,999 households and involved gathering data on demographic characteristics and both incident cancer cases and cancer-related deaths among members of these households during a three-year recall period (2010-2012). The data obtained yielded an average annual incidence rate of 91 per 100,000 population (age-standardized incidence rate of 148.8 /100,000) and cancer specific mortality rate of 68 per 100,000 population (age-standardized mortality rate of 126.3/100,000). The results showed an overall pattern of cancer similar to that reported according to cancer registration but the household survey results were consistently higher than those of the cancer registration by a margin of approximately 20- 30% with respect to incident cancer and about 70 % with respect to cancer-specific mortality. Household surveys on cancer, while costly and time consuming, are a very useful additional source of information on cancer at the population level. They can be performed for specific purposes with effective resource mobilization.

심해저 망간단괴 시험집광기의 근해역 집광성능 분석 (Performance Analysis of Deepsea Manganese Nodule Test Miner in Inshore Tests)

  • 최종수;여태경;김형우;박성재;윤석민;홍섭
    • Ocean and Polar Research
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    • 제32권4호
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    • pp.463-473
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    • 2010
  • Inshore tests were performed in order to verify the design concept of deep sea manganese nodule miner at a site near Hupo at East Sea of Korea in June of 2009. Total mining tests of the test miner, named 'Minero$^{(R)}$', together with flexible hose, lifting pump and lifting hose were accomplished. In this study, the performances of three subsystems of testminer (vehicle, pick-up device, and launch-and-recovery device) were analyzed for feasibility assessment of self-propelled remotely controlled miner, and also to compile basic data for designing a pilotminer. Performances of the test miner were defined based on the Functional Requirements of Axiomatic Design. The inshore tests revealed that the test miner generally satisfies the functional performances. Feasibility assessment and reflection on results are discussed within.

대학도서관 평가 지표의 개발에 관한 연구 (A Research on the Development of Evaluation Indicators for Academic Libraries)

  • 곽동철;윤정옥
    • 한국문헌정보학회지
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    • 제45권2호
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    • pp.309-324
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    • 2011
  • 이 연구의 목적은 우리나라 대학도서관 평가에 적용할 수 있는 평가 지표를 개발하는 것이다. 이 연구에서는 (1) 평가 방법, 절차 및 기준의 확정, (2) 평가에 사용될 정량적 및 정성적 평가 지표의 개발, (3) 시범 평가를 통한 지표의 적용 가능성 평가라는 세 가지 요소로 구성된 대학도서관 평가 모형을 구축하는 동시에 일반 현황 지표, 전국 대학 공동활용 지표, 특성화 지표 및 이용자 만족도 지표를 개발하였다. 이 지표들을 사용하여 2010년 대학도서관 평가 시범사업을 시행함으로써 이들의 적용 가능성 및 타당성을 검증하고자 시도하였다.

원자력시스템에서 순차적 다중실패상태의 신뢰도 평가 방법에 관한 고찰 (A Study on Reliability Estimation of Sequential-ordered Multiple Failure Modes in Nuclear System)

  • 한석중
    • 한국안전학회지
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    • 제26권4호
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    • pp.7-13
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    • 2011
  • A study on reliability estimation of sequential-ordered multiple failure modes, which are sequentially ordered between failure modes in a considering system, was performed. Especially, an approach to estimate the probabilities of failure modes has been proposed under an assumption that failure modes are mutually exclusive and sequentially ordered by only a critical variable. A feasibility of the proposed approach were studied by a practical example, which is a reliability estimation of passive safety systems for a probabilistic safety assessment(PSA) of a very high temperature reactor(VHTR) that is under development as a future nuclear system with enhanced safety features. It is difficult to define a robust failure state of this nuclear system because of its enhanced radiation release characteristics, so the new approach is a useful concept to estimate not only its safety but also a PSA. A feasibility study applied two failure modes(e.g., small and large release of radioactive materials) with considering the integrated behavior of this nuclear system. It is expected that the multiple release states for a practical estimation can be easily extended to the aforementioned example. It was found out that the proposed approach was a useful technique to cover the unfavorable features of this nuclear system as to performing a VHTR PSA.

신규마을 조성사업의 입지 평가에 관한 연구 (A Study on the Location Assessment of Rural Village Construction Project)

  • 이병학;정남수;김종봉
    • 한국농공학회논문집
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    • 제61권4호
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    • pp.97-103
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    • 2019
  • If the new town development project begins with inappropriate location then it will be difficult to recruit tenants and the proportion of the infrastructure cost could increase. It is necessary to evaluate the feasibility of the new town development projects to solve this problem. This study aims to identify the current status of the new town development projects and draw up evaluation criteria by examining advanced researches. To identify the importance of each village, we set up the weights through analytic hierarchy process. The evaluation criteria were classified into location conditions and economical efficiency. In the case of location conditions, it was classified into available size, geographical conditions, and accessibility. As a result of analyzing the questionnaire, it was subdivided into officially assessed land prices in case of economic efficiency. This study had some limitations, that is we focused on the location conditions and economic feasibility among other factors. Therefore further study should contain analysis more on socio-cultural aspects such as residents' cooperation or will for this project. By adding results later, we can make more reasonable decisions when we choose appropriate area.

The Use of Artificial Intelligence in Screening and Diagnosis of Autism Spectrum Disorder: A Literature Review

  • Song, Da-Yea;Kim, So Yoon;Bong, Guiyoung;Kim, Jong Myeong;Yoo, Hee Jeong
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • 제30권4호
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    • pp.145-152
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    • 2019
  • Objectives: The detection of autism spectrum disorder (ASD) is based on behavioral observations. To build a more objective datadriven method for screening and diagnosing ASD, many studies have attempted to incorporate artificial intelligence (AI) technologies. Therefore, the purpose of this literature review is to summarize the studies that used AI in the assessment process and examine whether other behavioral data could potentially be used to distinguish ASD characteristics. Methods: Based on our search and exclusion criteria, we reviewed 13 studies. Results: To improve the accuracy of outcomes, AI algorithms have been used to identify items in assessment instruments that are most predictive of ASD. Creating a smaller subset and therefore reducing the lengthy evaluation process, studies have tested the efficiency of identifying individuals with ASD from those without. Other studies have examined the feasibility of using other behavioral observational features as potential supportive data. Conclusion: While previous studies have shown high accuracy, sensitivity, and specificity in classifying ASD and non-ASD individuals, there remain many challenges regarding feasibility in the real-world that need to be resolved before AI methods can be fully integrated into the healthcare system as clinical decision support systems.

수치해석 기반 해상풍력단지 공존어업설비 기본설계 적정성 평가 (Basic design assessment of coexistent cage aquaculture an offshore wind farm based on numerical analysis)

  • 경두현;이호엽;강금석;박성민;강수원;김찬주
    • 풍력에너지저널
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    • 제15권1호
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    • pp.30-42
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    • 2024
  • This paper examines the design feasibility of cage aquaculture coexistent with an offshore wind farm in the southwestern sea of South Korea. Among the many types of fish farms, 2 × 3 cage aquaculture was selected for the investigation and the initial design including mooring lines, bridles, etc. was drawn with iterative numerical simulations using Orcaflex. Experimental campaigns were conducted to validate the numerical results, and they were found to be in good agreement with the experiments. Using a validated numerical model, the tension of mooring lines and the deformed volumes of the facility were examined under given operating and survival conditions. The validated model will be further used to investigate various aspects of the cage farm design for design optimization.

안양천 유역의 물순환 건전화를 위한 통합관리방안(II): 예비 타당성 계획 (Integrated Approach for Rehabilitating the Hydrologic Cycle in the Anyangcheon Watershed(II): Prefeasibility Study)

  • 이길성;정은성;김영오
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2005년도 학술발표회 논문집
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    • pp.497-501
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    • 2005
  • 근래 들어 도시화로 인한 물순환 파괴를 근본적으로 연구하고 이를 정상화하기 위한 체계적이고 통합적인 유역관리 기술이 요구되고 있다. 유역통합관리의 이론을 실제로 적용한 계획을 세우기 위해서는 Heathcote(1998)가 제안한 다음과 같은 단계별 절차를 수행하는 것이 바람직하다. 단계별 절차는 (1) 대상유역에 대한 정보수집, (2) 문제점 도출, (3) 분명한 목적 수립, (4) 대안의 구성, (5) 대안의 검토, (6) 대안의 효과분석, (7) 최종계획 수립으로 이루어져 있으며 본 연구에서는 3단계의 과정에 해당된다. Heathcote(1998)는 대안의 선정과 평가를 위한 방법으로 단순평가방법(simple assessment method)과 세부평가방법(detailed assessment method)으로 구분하였는데 본 연구에서 수행한 내용은 단순평가방법에 해당된다. 본 연구는 안양천 유역에서 물순환 건전화의 핵심을 건천화 방지로 판단하고 이를 위한 대안을 크게 지표수, 지하수, 대체수자원 분야로 구분하여 제시하였다. 지표수 분야의 경우 구조적인 대안으로 소규모 저수지의 개발, 타유역에서의 도수, 보를 이용한 수량 확보, 우오수분리벽을 이용한 상류유출수의 확보, 저협수로 형성, 하천바닥에 차집관로 매설 방지 및 차집관로 유지관리 등이 있으며 비구조적인 대안으로는 기존 저수지의 유지용수 공급을 위한 운영, 유수지의 다목적 활용, 하천수 직접취수 제한 등이 있다. 지하수 분야의 대안으로는 지하철 용출수의 재이용, 지하수의 과다이용 제한, 침투증진시설의 설치 등이 있으며 대체수자원 분야의 대안으로는 하수처리수를 고도처리하여 유지용수로 재이용하는 것, 중소규모 하수처리장의 상류 설치, 대규모 사업장의 폐수를 고도처리하여 활용하는 것, 상수도의 이용 등이 있다. 이러한 여러 가지 대안들은 Walesh(1989)가 제안한 절차에 따라 기술가능성(technical feasibility), 경제성(economical efficiency), 환경성(environmental feasibility) 등을 정성적으로(qualitatively) 파악하여 실현가능한 대안을 선정하였다. 이렇게 선정된 대안들은 중유역별로 검토하여 효과가 있을 것으로 판단되는 대안들을 제시하는 예비타당성(Prefeasibility) 계획을 수립하였다. 이렇게 제시된 계획은 향후 과학적인 분석(세부평가방법)을 통해 대안을 평가하고 구체적인 타당성(feasibility) 계획을 수립하는데 토대가 될 것이다.

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