• 환경영향평가
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• 제21권6호
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• pp.903-916
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• 2012

We need to use aesthetic landscape assessment(ALA) as the means of riparian buffer zone(RBZ) management. This study verified the political validity of designation policy of RBZ and land purchase policy. The purpose of this study was to propose RBZ landscape management strategies through ALA of RBZ in Gyeongan Stream for the better attractive and healthy riparian landscapes. The natural type landscape units(LUs) covered 40.9% of the entire area and the cultivated land type LUs covered 20.58%. Landscape assessment consisted of landscape quality and landscape integration assessment. The criteria for assessing landscape quality(LQ) were naturalness, interest, uniqueness, and landscape function. LQ was ranked into five grades using a matrix. The landscape integration assessment consisted of an inner integration assessment in each LU and outer integration assessment among LUs. To review the propriety of designating the riparian area and the riparian ecological belt, differences in ecological appraisal and aesthetic valuation were reviewed through a t-test, Oneway ANOVA, and logistic analysis. The results of ALA, 29.15% of the entire area scored at grade 1 in LQ, while 31.95% scored at grade 5, indicating that grade 5 areas occupied a high share. Surveyed areas were divided into designated RBZ and undesignated RBZ. Results indicated that designated RBZ scored grade 1 in LQ took up 33.2% of the total, significantly higher than the 23.3% taken up by undesignated RBZ. When examined according to buffer distance, grade 1 areas within 50m took up 50.2% of the total area, lower than the 32.7% at buffer distances of 500m-1km. Results indicated a 1% statistically significant difference. Accordingly, analysis was undertaken for the expansion of designation of the riparian area and the selection of appropriate land for formation of a riparian ecological belt, and was designated at priority 1 and 2 for land purchase. This study can also contribute to the formation of a riverine eco-belt through discovery of design factors for upgrading the ecology, aesthetics, and landscape of the riparian area and application in determining land purchase priorities.

• 한국환경복원기술학회지
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• 제24권1호
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• pp.15-24
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• 2021

This study was carried out to propose the functional assessment and a wise use strategy on the ecologically valuable 'village wetlands' distributed in living area in Geumsan gun, Chungnam province, Korea. The targets of the functional evaluation were 24 wetlands, selected from 123 village wetlands, where villages and agricultural lands or core ecosystems are located within living area near the wetland and wetlands with historical and cultural significance. The functional evaluation was carried out by RAM (Rapid Assessment Model) and the conservation strategies were suggested. As a result of the functional evaluation, 9 wetlands were rated 'high' (2 'absolute conservation' and 7 'conservation' strategies), 14 wetlands were rated 'medium' ('enhancement' strategies), and one wetland was rated 'low' ('restore or enhancement' strategy). In consideration of the results of the functional evaluation, interviews with village residents, and historic meaning, 6 important village wetlands were selected that require additional management strategies, such as conservation, enhancement, and restoration. 2 wetlands were from "absolute conservation" strategy and 4 wetlands derived from "conservation" and "enhancement" strategy wetlands in consideration of the ecological connectivity of wetlands, the use of surrounding land, and the function as a biological habitat. The wise use and conservation strategy was specifically proposed respectively.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 춘계학술대회 논문집
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• pp.81-84
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• 2007

THE THERE HAS BEEN AN INCREASING DEMAND FOR THE NOISE IMPACT ASSESMENT BY HIGH-SPEED TRAINS DUE TO THE EXPANSION OF HIGH-SPEED RAILWAY. THIS PAPER PROVIDES STRATEGIES FOR THE EVALUATION AND THE ASSESSMENT OF THE POTENTIAL NOISE IMPACT RESULTING FROM PROPOSED HIGH-SPEED RAILWAY. FIRSTLY THE NOISE TECHNICAL SPECIFICATIONS FOR THE RAILWAY NOISE HAVE BEEN REVIEWED, AND THE STRATEGIES OF THE NOISE IMPACT ASSESMENT FOR HIGH-SPEED RAILWAY NOISE ABATEMENT HAVE BEEN DESCRIBED.

• 의학교육논단
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• 제11권1호
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• pp.35-43
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• 2009

Learning strategies are defined as behaviors and thoughts that a learner engages in during learning and that are intended to influence the learner's encoding process. Today, demands for teaching how to learn increase, because there is a lot of complex material which is delivered to students. But learning strategies shouldn't be identified as tricks of students for achieving high scores in exams. Cognitive researchers and theorists assume that learning strategies are related to two types of learning processing, which are described as 'surface learning' and 'deep learning'. In addition learning strategies are associated with learning motivation. Students with 'meaning orientation' who struggle for deep learning, are intrinsically motivated, whereas students with 'reproduction orientation' or 'achieving orientation' are extrinsically motivated. Therefore, to foster active learning and intrinsic motivation of students, it isn't enough to just teach how to learn. Changes of curriculum and assessment methods, that stimulate deep learning and curiosity of students are needed with educators and learners working cooperatively.

• Nuclear Engineering and Technology
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• 제28권3호
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• pp.247-256
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• 1996

This paper presents a new approach for assessing accident management strategies using containment event trees (CETs) developed during an individual plant examination (IPE) for a reference plant (CE type, 950 MWe PWR). Various accident management strategies to reduce risk have been proposed through IPE. Three strategies for the station blackout sequence are used as an example : 1) reactor cavity flooding only, 2) primary system depressurization only, and 3) doing both. These strategies are assumed to be initiated at about the time of core uncovery. The station blackout (SBO) sequence is selected in this paper since it is identified as one of the most threatening sequences to safety of the reference plant. The effectiveness and adverse effects of each accident management strategy are considered synthetically in the CETs. A best estimate assessment for the developed CETs using data obtained from NUREG-1150, other PRA results, and the MAAP code calculations is performed. The strategies are ranked with respect to minimizing the frequencies of Various containment failure modes. The proposed approach is demonstrated to be very flexible in that it can be applied to any kind of accident management strategy for any sequence.

• 한국수학교육학회지시리즈A:수학교육
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• 제40권1호
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• pp.67-75
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• 2001

Since performance assessment was introduced in Korea in the middle of 1990, many problems which include its definition, characters, methods and scorings etc., raised in mathematics education worlds. Therefore this paper presents the theoretical background of performance assessment in mathematics education. Contemporary teaching and loaming theories reject stimulus-response theory which emphasizes outcome. Performance assessment emphasizes the assessment which reveal learning process and various strategies. And it bases on constructivism and socio-cultural perspective. This paper presents paradigms which guide the roles and purposes of assessment. The paradigms include conventional paradigm, constructivist paradigm and critical paradigm. There is a close correlation between constructivist paradigm and performance assessment. Assessment has to grasp the development of present and the possibility of development of future of the students. Performance assessment must be fixed the new paradigm of education for this purpose.

• 한국관개배수논문집
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• 제18권2호
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• pp.33-42
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• 2011

Climate change has impacts on not only the average temperature rise but also the intensity and frequency of extreme events such as flood and drought. It is also expected that the damages on agricultural infrastructure will be increased resulting from increased rainfall intensity and frequency caused by climate change. To strengthen the climate change adaptation capacity, it is necessary to identify the vulnerability of a given society's physical infrastructures and to develop appropriate adaptation strategies with infrastructure management because generally facilities related to human settlements are vulnerable to climate changes and establishing an adaptive public infrastructure would reduce the damages and the repair cost. Therefore, development of mitigation strategies for agricultural infrastructure against climatic hazard is very important, but there are few studies on agricultural infrastructure vulnerability assessment and adaptation strategies. The concept of vulnerability, however, is difficult to functionally define due to the fact that vulnerability itself includes many aspects (biological, socioeconomic, etc.) in various sectors. As such, much research on vulnerability has used indicators which are useful for standardization and aggregation. In this study, for the vulnerability assessment for agricultural infrastructure, 3 categories of climate exposure, sensitivity, and adaptation capacity were defined which are composed of 16 sub-categories and 49 proxy variables. Database for each proxy variables was established based on local administrative province. Future studies are required to define the weighting factor and standardization method to calculate the vulnerability indicator for agricultural infrastructure against climate change.

• Asian Pacific Journal of Cancer Prevention
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• 제16권6호
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• pp.2317-2322
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• 2015

Background: Despite the increasing number of screening examinations performed for cervical cancer utilizing the Papanicolaou smear test (Pap test), few studies have examined whether this strategy is cost-effective in Korea. Objective: This study was conducted to evaluate the cost-effectiveness of cervical cancer screening strategies incorporating the Pap test based on age at the start and end of screening as well as screening interval. Materials and Methods: We designed four alternative screening strategies based on patient age when screening was started (20 or 30 years) and discontinued (lifetime, 79 years). Each strategy was assessed at screening intervals of 1, 2, 3, or 5 years. A Markov model was developed to determine the cost-effectiveness of the 16 possible cervical cancer screening strategies, and this was evaluated from a societal perspective. The main outcome measures were average lifetime cost, incremental quality-adjusted life-years (QALYs), and incremental cost-effectiveness ratio (ICER). Results: Compared with various strategies comprising younger starting age, discontinuation age, and longer screening intervals, strategies employing annual screening for cervical cancer starting at a target age of 30 years and above were the most cost-effective, with an ICER of 21,012.98 dollars per QALY gained (with a Korean threshold of 30,000,000 KRW or US$27,272). Conclusions: We found that annual screening for cervical cancer beginning at a target age of 30 years and above is most cost-effective screening strategy. Considering the potential economic advantages, more intense screening policies for cervical cancer might be favorable among countries with high rates of cervical cancer and relatively low screening costs.

• 융합정보논문지
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• 제9권10호
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• pp.163-169
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• 2019

본 연구의 목적은 대학교에서 PBL 수업을 우수하게 운영하는 교수들의 수업운영 전략을 탐색하는 것이다. 이를 위해 충남에 위치한 B대학에서 2017년 1학기, 2학기, 2018년 1학기동안 PBL 우수 사례자로 선정된 교수 6명이 작성한 수업결과 보고서와 사례발표회 발표 자료를 활용하여 수업운영 전략 관련 내용을 귀납적 분석방법을 통해 분석하였다. 연구결과 PBL 우수 사례자로 선정된 교수들은 수업운영 시 교실문화, 학습촉진, 평가의 3개 영역과 관련하여 13개의 전략을 사용하고 있음이 규명되었다. 향후 필요한 연구와 지원을 제안하면 다음과 같다. 첫째, PBL을 우수하게 운영하는 교수들의 수업운영 전략에 대한 연구가 보다 확대되어야 한다. 둘째, PBL을 우수하게 운영하는 교수들과 일반교수들의 운영전략에 관한 비교연구가 수행되어야 한다. 셋째, 조직 차원에서 PBL을 우수하게 운영하는 교수들의 수업운영 전략을 공유할 수 있는 시스템이 지원되어야 한다.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제29권4호
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• pp.625-642
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• 2015

이 연구의 목적은 수업을 통해 학생의 성장을 이끌 수 있도록 피드백이 강화된 초등수학 수행평가모델을 개발하고 적용하여 그 효과를 검증하는데 있다. 또한 초등 수학교과 평가는 기존의 지필에서 벗어나 과정 중심 평가로 나아가야 함을 강조하고자 한다. 이 연구 목적을 달성하기 위하여 초등학교 6학년 교육과정의 성취기준을 분석하여 핵심역량 중심의 평가기준을 설정하고 다양한 평가방법을 활용하는 평가계획을 세웠다. 또한 평가문항, 채점기준표, 관찰체크리스트 등의 평가도구를 개발하여 투입하였으며 결과에 따른 피드백으로는 수준별 보충 심화 학습 자료를 개발하여 투입하였다. 본 수행평가모델을 적용한 결과 학생들의 반성적 사고능력이 향상되었고 성취수준에 미치지 못했던 학생들이 피드백을 통해 'N'수준에서 'N+1'의 수준으로 성장하는 것을 확인할 수 있었다.