• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2010년도 정기 학술대회
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• pp.122-125
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• 2010

본 논문에서는 부유식 원유저장 해양구조물(FSU; Floating Storage Unit)의 상부 하역구역(Laydown Area) 내에 낙하물(Dropped Object)이 떨어질 경우의 충격 구조 안전성 평가(Structural Safety Assessment)를 수행하여 표준해석 절차서를 정립하고자 한다. 이를 위해서는 내충격 구조해석을 통한 평가 기법을 개발하고 그 기법의 적용성을 검토하여 표준해석 절차서를 정립하는 것이 필요하다. 현재는 충격 구조해석 시나리오를 작성하고 내충격 구조해석을 수행하여 설계기준(design criterion)에 적용하고 있는 중간단계로써 그 결과들을 소개하고자 한다.

• 정보교육학회논문지
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• 제21권5호
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• pp.547-555
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• 2017

정보과 교육이 정규교과과정에 편입됨에 따라서 학습자의 정보과 교육과정에 대한 학업 수준을 정확히 진단하고 그에 맞는 등급을 부여할 수 있도록 일종의 이론적 기반이 필요하다. 이에 본 연구에서는 개정 블룸의 교육목표 분류와 지식 유형 분류 이론을 통해 정보과 교육과정의 프로그래밍 분야에 대한 기준을 제시하고자 하였다. 그리고 블룸의 "기억"에서부터 "제작" 단계까지 프로그래밍교육 평가 기준을 제시하였다. 그리고 블룸의 지식 유형 기준에 따라서 사실적 지식에서부터 메타인지 지식까지 프로그래밍의 지식 유형 예제를 제시하였다. 또한, 본 연구에서 프로그래밍 활동을 위해 가장 중요한 블룸의 분류는 "적용", "제작" 그리고 절차적 지식 유형으로 분석하였다. 이러한 블룸의 이론 기반 프로그래밍 평가 기준에 대하여 소프트웨어교육 전문가를 통하여 델파이 조사 을 하였다. 조사 결과 목표분류 기준 신뢰도가 0.90, 합의도가 0.85였으며 지식 유형 분류 기준으로는 신뢰도가 0.90, 합의도가 0.79로 나타났다. 이에 본 연구에서 제시한 기준에 대해서 전문가들은 동의하는 것으로 해석할 수 있었다.

• 환경영향평가
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• 제30권5호
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• pp.317-327
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• 2021

산업단지는 국내 경제성장에 큰 역할을 담당해왔으나, 대단위 면적 개발사업 및 제조업 관련 산업시설의 집적지로서 조성 및 운영 과정에서 다양한 환경문제를 초래하기도 한다. 본 연구에서는 2009년~2019년간 이루어진 국내 산업단지 개발사업에 대한 환경영향평가 결과를 활용하여 산업단지 개발 동향 및 입지 특성의 변화, 산업단지 개발로 야기되는 환경 영향을 파악하였다. 특히 산업단지 개발에 따른 산림 훼손 정도를 분석하였으며, 산업단지와 도심지역과의 인접 정도 및 노출 인구의 변화를 정량적으로 도출하여 이를 통한 입지 특성의 변화를 중점적으로 고찰하였다. 연구대상 기간 내 국내 산업단지의 개발은 지속적인 감소 추세에 있으며, 주요 개발지역은 경기, 경남 및 경북, 충남 및 충북으로 확인되었다. 산업단지 개발로 인한 평균 산림 훼손 면적은 감소 추세에 있는 것으로 나타났으며, 산업단지의 영향권 내 주거시설 및 민감계층 이용시설 분포현황과 노출 인구는 지속적으로 증가하는 것으로 도출되었다. 본 연구는 비교적 장기간에 걸친 국내 산업단지 개발사업에 대한 환경영향평가 결과를 토대로 개발사업으로 인한 환경적 영향을 분석하고 특히, 입지 특성변화를 정량적·시계열적으로 도출하였다는 점에서 의의가 있는 것으로 판단된다.

• 환경영향평가
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• 제19권1호
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• pp.99-106
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• 2010

The project of Cheonggyecheon revived the 5.8 kilometer stream and it removed the cover of stream and Cheonggye elevated road. It was begin October of 2003 and completed October of 2005. The purpose of this study is to analyze the air pollution change of Cheonggyecheon area and neighboring area from before and after the project. The change of concentration is compared with an air monitoring station data and measurement data. The analyzed pollutants are $NO_2$, $PM_{10}$, heavy metal, VOC which are measured at Cheonggyecheon and neighboring area. As the results, $NO_2$ concentration shows 10 % decreases in Cheonggyecheon area and neighboring area shows 16 % decreases by Chenoggyecheon restoration, and $PM_{10}$ concentration shows 15 % decreases in Cheonggyecheon area and neighboring area shows 16 % increases. One of VOC, benzene is increased in Cheonggyecheon area compared with neighboring area but Toluene, Ethylbenzene, m+p Xylene increased in neighboring area. After the Cheonggyecheon restoration, The heavy metals are not shows the improvement, but $PM_{10}$ and $NO_2$ concentration improved more than the changes of neighboring area. These improvements of pollution due to reduction of transportation and clearing of elevated road by Cheonggyecheon restoration project.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제22권2호
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• pp.229-252
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• 2008

The purpose of this research was to make fair assessment methods which took into account characteristics of mathematically underachievers. The researchers devised an descriptive tests and interviews and applied them to the mathematics underachievers who could not reveal their achievements in the traditional assessment and then analyzed their cognitive and affective characteristics in the alternative assessments. After selecting three students by the normal assessment made of simple subjective and multiple choice questions, the cognitive and affective characteristics found in the general assessment were reflected to the descriptive tests and interviews. The descriptive tests and interviews are comprised of descriptive narrations and informal interview questions. After the assessment, the teacher and students gave feedbacks one another. All the assessment activities were recorded by a camcorder to analyze cognitive and affective characteristics of the children. Throughout the research, the following conclusions were made. The mathematics underachievers showed the characteristics which didn't appeared in the normal assessment. They showed normal abilities of problem solving and communication In the cognitive area. Also they brought in positive result in most parts in the affective area. However, the student B displayed considerable ability of mathematical thinking that is over the average level of mathematical underachievers. This implies that we can definite the mathematical underachievers differently when we use the detailed and relief assessment method instead of the traditional assessment. On the other hand, one student tended to depend on the teacher and another student overheard what the others talk during the study. This defect should be complemented by the further studies about assessment method for the mathematical underachievers. Also appropriate assessment methods should be made for applying to the various mathematical underachievers. Many studies have been concentrated on the learning for mathematical underachievers but there is little concern about the assessment for the mathematical underachievers. However it is the fundamental way to reduce the number of mathematics underachievers that we construct consistent learning methods and assessments for the mathematical underachievers.

• 한국안전학회지
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• 제17권4호
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• pp.168-172
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• 2002

The Safety Assessment for Construction works is used in order to make the safety plans to protect calamities in construction sites. However in Korea it is problem that the Safety Assessment has strict and meaningless contents. So it is not used well. This study suggests the effectual making methods of the Safety Assessment to solve the problems which are found through investing serious calamities and interviewing experts.

• 한국환경복원기술학회지
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• 제10권5호
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• pp.1-9
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• 2007

Local government with abundant natural resources should consider the nature conservation oriented planning process for the sustainable development. With this regard, the aim of this study is to provide a substantial methodology to support the decision-making process to designate the conservation areas. The objectives of the proposed methodology is to conserve natural resources in the local government's territory through quantitatively assessing the values of the natural resources based on various ecological factors such as topography, flora and fauna. In order to test the usability of the method, Gangneung City in Kangwon-Do is selected considering the latest data availability. Based on the assessment process land use of the subjected city could be categorized into 4 levels of conservative area, conservative level 1 area, conservative level 2 area, and conservative level 3 area. Among them, conservative area and conservative level 1 area could be combined as natural resources conservation area and the others could be regarded as buffer and transitional area. Especially conservation area is surrounded by conservation level 2 area. Conclusively, the GIS methods adopted in this could be the efficient illustrative tool to assess the local natural resource values with the central government established nature-environmental information systems.

• 환경영향평가
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• 제22권3호
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• pp.277-290
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• 2013

This study was carried out to propose the new procedure to apply Habitat Evaluation Procedure(HEP) of target species using delphi technique, which is suitable to develop endangered species with few researches and ecological knowledges. To identify habitat quality of specific species in development project site, we can develop habitat model and create habitat suitability maps. In this study, we select the Common Kestrel(Falco tinnunculus) as target species in four areas(Paju, Siheung, Ansan, Hwaseong) which is located near the Seoul metropolitan area. The Delphi technique was selected to get the reliable information on the species and habitats requirements. Through the delphi approach, seven habitat components were determined as suitable variables for the Common Kestrel: density($n/km^2$) of small mammals, area($km^2$) of bare-grounds, pasturelands and riparian, and open area(%), spatial distribution and area of croplands, landscape diversity, breeding sites(tall trees, cliffs, high-rise buildings), and the length of shelf. Habitat variables used in this model were classified into two categories: % of suitable land-cover type(open areas, croplands, pasturelands, wetlands, and baregrounds) and the quality of feeding sites(within 250m from edges of woodlands). Habitat quality of the Common Kestrel was assessed against occurred sites derived from the nationwide survey. Predicted habitat suitability map were closely related to the observed sites of the endangered avian species in the study areas. With the habitat suitability map of the Common Kestrel, we assess the environmental impacts with habitat loss after development project in environmental impact assessment.

• 한국환경복원기술학회지
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• 제17권1호
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• pp.27-43
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• 2014

The purpose of this research is to assess potential area of mountainous wetland by GIS and AHP (Analytic Hierarchy Process). Mountainous wetland is topographically located at high altitude, so it's difficult to approach for researchers. And, it's difficult to investigate systematically because of the insufficient information of mountainous wetland. Therefore, it's necessary to study on potential area of mountainous wetland for systematic and efficient investigation. This research selected slope, wetting index, land-cover map and soil map as assessment items indicating environmental characteristics of mountainous wetland and established them by GIS DB. And, spatial value of mountainous wetland for each assessment item was drawn by existing investigation data and overlap analysis of mountainous wetland. Based on the numerical results of each assessment item, a survey was conducted and relative importance for each assessment item was decided by AHP. As the result, slope was the highest as 0.550 and ground coverage was the lowest as 0.083. The subject of this research was Yangsan-si and Ulsan of Gyeongnam and an analysis was conducted for mountainous wetland in those research areas. As the result, all of wetland was distributed in the range of potential area. And, field survey and literature search were conducted for the point that the distribution of mountainous wetland is expected. As the result, mountainous wetland was distributed. Therefore, mountainous wetland should be excavated through the results of this research and it should be helpful for effective investigation as providing information necessary to the following studies on mountainous wetland.

• 한국안전학회지
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• 제20권2호
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• pp.50-55
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• 2005

This Paper Presents assessment of fuzzy measure Possibility far the electromagnetic field according to voltage fluctuation of the Jechon Area. To cope with substantial electromagnetic analysis, the safety assessment were analyzed the double 154kV T/L, 345kV T/L, Jechon-Ichon Jechon-Youngju, respectively. As the results of case study, in case of 345kV T/L, the electric field value was 11.4927kV/m, magnetic field value was 0.4622G at the Point about 7m away from the line in severest case. Tn assessment of fuzzy measure Possibility for the electromagnetic field, this paper use probability of fuzzy and measure of fuzziness technique.