• 제목/요약/키워드: Expert and Field Evaluation

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전문가 델파이 설문 조사를 통한 농촌경관 유형분류 및 평가지표 개발 (Classifying Rural Landscape Types and Developing Rural Landscape Evaluation Indicators Using Expert Delphi Survey Method)

  • 반영운;백종인;김민아;윤진옥
    • 농촌계획
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    • 제14권3호
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    • pp.53-61
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    • 2008
  • This study has intended to elicit the definition of rural landscape, to classify rural landscape type, and to develop the evaluation indicators of rural landscape, meeting the definition through delphi expert survey method. The survey was performed five times for 80 days by 20 experts. The delphi expert survey asked experts as follows: 1) to fill out open-ended questions regarding the definition of rural landscape, and classification of rural landscape types, and evaluation indicators; 2) to provide their own feasibility evaluation regarding the results of the previous answer; and 3) to reevaluate the feasibility of the definition, types, and indicators. Based on the survey results, this study has found the appropriate definition of rural landscape like the comprehensive complex of physical (objective) and nonphysical (subjective) factors characterizing natural and/or artificial scenary of rural village itself Also, this study has developed the evaluation indicators of rural landscape in accordance with space types and landscape units classified. The developed indicators included areal ratio, the degree of green naturality, the building coverage ratio for physical landscape field, and skyline, landscape adjectives, color landscape, semantic scale.

농촌지역 노거수의 지속가능한 보전을 위한 평가체계 개발 연구 (The Development of Evaluation System for the Sustainable Conservation of Old Tree in Agricultural Landscape)

  • 손진관;김미희;이시영;강동현;김남춘;강방훈
    • 한국환경복원기술학회지
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    • 제19권3호
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    • pp.59-69
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    • 2016
  • This study was conducted to develope an evaluation system for sustainable conservation of old trees with historic and traditional values in rural areas. Existing evaluation system was modified through field application of 10 old trees and expert research twice for development of new evaluation system. 4 evaluation items in 10 evaluation items were deleted by first expert research. Some items are proposed to offer a figure explanation by second expert research. End-developed evaluation items are consisted of 6 items ((1) Ground State, (2) Blight, Harmful Insects, (3) Tree Form, (4) Canopy Vitality, (5) Bark, (6) Damage) reflecting the order of importance evaluation. Old trees evaluation system developed in this study is expected to be utilized continuously to conserve the old trees in the rural areas and gradually help to increases the historic and traditional values.

A study to improve the national technical qualification practical evaluation method of National Competency Standards in the field of organic agriculture

  • Hyun-Ho, Jang;Taek-Keun, Oh;Jwakyung, Sung
    • 농업과학연구
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    • 제48권4호
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    • pp.855-863
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    • 2021
  • The purpose of this study is to suggest an improvement plan for the National Technical Qualification Practical Evaluation focusing on National Competency Standards. First, in order to strengthen practical techniques such as field abilities and expertise, practical evaluation methods were applied to the National Competency Standards, referring to a learning module focused on field performance. Second, an expert advisory committee in the field of organic agriculture was utilized to compare, analyze, and match the competency unit and competency unit elements of the National Competency Standards with the national technical qualification examination standards in field of organic agriculture. In addition, in order to identify work in progress in the industrial field, share professional practice skills, and analyze facilities and equipment, we visited an organic agriculture industry site. Through this, a practical evaluation exam was developed. Subsequently, in order to confirm the adequacy of the developed exam, the pilot test assessment was conducted for those majoring in organic agriculture. Finally, as a feasibility study, a survey was conducted. Based on the results, greater technical job competency in the field of organic agriculture will contribute to strengthening knowledge in this field by suggesting an improvement plan for the national technical qualifications practical evaluation method in the field of organic agriculture.

원전 해체 시 최적 제염기술 선정을 위한 EXPERT-CHOICE 기법 적용에 대한 연구 (A Study on the Application of EXPERT-CHOICE Technique for Selection of Optimal Decontamination Technology for Nuclear Power Plant of Decommissioning)

  • 송종순;신승수;이상헌
    • 방사성폐기물학회지
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    • 제15권3호
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    • pp.231-237
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    • 2017
  • 본 논문에서는 원전해체 시 적용 가능한 제염기술을 조사하여 분석하였다. 이를 기반으로 최적의 제염기술을 선정하기 위해 의사결정 기법(EXPERT-CHOICE)을 사용하여 기술성을 평가하였다. 이 평가방법은 해당 분야의 전문가로 이루어진 전문가 집단에 의해 수행되는 것이 일반적이다. 가중치를 고려한 결과는 각 기준에 대한 가중치에 평가점수를 곱한 총합을 구하는 식으로 수행하였다. 평가 점수를 3단계로 하여 High, Medium, Low로 구분한 후 가중치를 부여하여 차별화 시킬 수 있다. 하위분류 기준의 세분화와 각 기준 별 가중치의 추가 정량화를 통하여 기술성 분석의 수준을 제고할 수 있고, 좀 더 설득력 있는 결과의 도출을 예상할 수 있다. 평가의 기본 가정은 각 기준 별 가중치를 전문가 조사에 의해 부여하며, 평가 기준은 High에 좀 더 비중을 주는 식으로 차별화 하였다. 이를 반영하면 H, M, L는 대략 "10:5:1"의 비율로 평가 점수를 부여받는데, 이는 EXPERT-CHOICE 기법의 최적화 분석에 따른 것이다. 최고 및 최저값을 제외한 나머지 결과값의 평균을 평가치로 고려하였다.

터널굴착 현장에 인접한 지상구조물의 안전성 평가용 전문가 시스템의 개발 (1) -전문가 시스템 개발 및 신뢰성 검증을 중심으로 (Development of a Neural Network Expert System for Safety Analysis of Structures Adjacent to Tunnel Excavation Sites Focused on Development and Reliability Evaluation of Expert System)

  • 배규진;신휴성
    • 한국지반공학회지:지반
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    • 제14권2호
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    • pp.107-126
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    • 1998
  • 터널굴착으로 발생되는 지반침하는 지상구조물의 변형을 유발할 수도 있으므로 터널굴착 전에 지상구조물의 안전성 평가가 요구된다. 이러한 변형에 대한 구조물의 안전성을 평가하기 위하여 본 연구에서는 터널현장의 지반침하를 예측하고, 이를 기반으로 지상구조물의 안정성 평가를 수행하는 전문가 시스템 NESASS(Neural Network Expert System for Adjacent Structure Safety analysis)를 개발하였다. NESASS는 인공신경망을 이용, 터널현장의 지반침하 계측자료로 작성된 데이터베이스 자료를 학습자료로 하여 학습을 수행하고, 이를 기반으로 터널현장의 지반침하 트라프를 추론한다. 또한 일반구조물의 안전성을 평가하는데 이용되고 있는 인자, 즉 각변형(angular distortion)과 처징비 (deflection ratio) 등을 이용하여 지상건물의 안전성을 평가함과 아울러 Dulacska의 균열평가 모델 을 이용하여 건물의 균열양상을 예측한다. 본 연구에서는 서울지하철 현장을 대상으로 113개 계측측선의 지반침하 계측자료를 수집 정리하고 지반침하의 주 영향인자들을 선정하여. 이들을 데이터베이스화하였다. 그리고 인공신경망 구조에 관련된 매개변수 연구를 수행하여 구축된 데이터베이스에 대한 최적 인공신경망 모델을 선정하였다. 또한 현장자료와의 비교를 통하여 NESASS의 지반침하 예측능력을 조사하고, 현장자료를 이용하여 지상구조물에 대한 안전성 평가의 신뢰성을 평가함으로써 NESASS의 실무 적용성을 확인 하였다.

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예비 영어교사 주도에 의한 영미시 평가표 제작 및 평가 수행에 관한 연구 (Engaging pre-service English teachers in the rubric development and the evaluation of a creative English poetry)

  • 이호;전소연
    • 영어어문교육
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    • 제17권4호
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    • pp.339-356
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    • 2011
  • This study explored pre-service English teachers' participation in the development of a rubric and examined evaluation of their own English poetry. The current study would investigate: 1) the pre-service English teachers' perception as a rubric developer and self-evaluator, 2) the number of analytic area that the participants included in their rubrics and the scoring scheme that they designed in their rubrics, and 3) the inter-rater differences between self-assessemnt and expert-assessment across analytic areas. Twenty-four EFL learners participated in the current study. The researchers analyzed the learners' own English poetry, their field notes which contained the process of their writing, their rubrics, scores of self-assessment, and expert raters' scores. The results revealed that learners showed positive responses on learner-directed assessment, that 'content' is the most important area, and that inter-rater difference is small across all analytic areas.

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취업진로지도를 위한 멘토링 서비스 (A Mentoring Service for Career Guidance)

  • 이문구
    • 서비스연구
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    • 제1권1호
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    • pp.81-90
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    • 2011
  • 대학을 졸업한 고학력 청년층의 실업은 우리사회에 고용불안을 더욱 악화 시키고 있다. 그럼에도 불구하고, 기존의 대학에서 이루어지고 있는 취업진로지도 교육은 여전히 학생들의 취업에 직접적인 효과를 얻기에는 부실하고, 단순히 정보 전달의 기능만을 갖추고 있어서 대학생들이 졸업 후 산업체의 요구에 부응하지 못하고 있다고 평가된다. 그러므로 본 논문에서는 취업진로지도를 위한 멘토링 서비스를 제안하였다. 제안하는 멘토링 서비스는 취업진로지도와 대학생활지도를 기반으로 프로세스를 운영하도록 한다. 그리고 전문가평가와 현장평가가 수시로 이루어져서 체계적이고 지속적인 멘토링 활동이 이루어지도록 하였다. 이러한 취업진로지도를 위한 멘토링 서비스 모델은 대학을 졸업하고 낮은 이직률은 물론 대학의 취업률 향상에 도움이 될 것으로 기대한다.

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피로강도평가를 위한 통합 전산 시스템의 개발 (Development of Integrated Fatigue Strength Assessment System)

  • 박준협;송지호
    • 대한기계학회논문집A
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    • 제25권2호
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    • pp.264-274
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    • 2001
  • An integrated fatigue strength assessment system was computerized. The system developed consists of 9 modules: user interface, cycle counting, load history construction, data searching, fatigue properties estimation, fatigue data analysis, true stress and strain analysis, expert system for crack initiation life prediction, fatigue crack initiation and propagation life prediction. Fatigue strength database also was included in this system. The fatigue expert system helps a beginner to predict a fatigue crack initiation life in fatigue strength assessment. The expert system module in this system is developed on the personal computer by using C language and UNiK, an expert system developing tool. To evaluate the system, the results of test under variable loading of SAE and failure data from a field were analyzed. The evaluation show that the system provided fatigue life prediction within 3-scatter band and gave reasonable predictions. To get more accurate predictions of fatigue life without fatigue properties, we recommend utilizing the system along with the fatigue strength database.

Evaluating the Comfort Experience of a Head-Mounted Display with the Delphi Methodology

  • Lee, Doyeon;Chang, Byeng-hee;Park, Jiseob
    • 인터넷정보학회논문지
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    • 제21권6호
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    • pp.81-94
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    • 2020
  • This study developed evaluation indicators for the comfort experience of virtual reality (VR) headsets by classifying, defining, and weighting cybersickness-causing factors using the Delphi research method and analytic hierarchical process (AHP) approach. Four surveys were conducted with 20 experts on VR motion sickness. The expert surveys involved the 1) classification and definition of cybersickness-causing dimensions, classification of sub-factors for each dimension, and selection of evaluation indicators, 2) self-reassessment of the results of each step, 3) validity revaluation, and 4) final weighting calculation. Based on the surveys, the evaluation indicators for the comfort experience of VR headsets were classified into eight sub-factors: field of view (FoV)-device FoV, latency-device latency, framerate-device framerate, V-sync-device V-sync, rig-camera angle view, rig-no-parallax point, resolution-device resolution, and resolution-pixels per inch (PPI). A total of six dimensions and eight sub-factors were identified; sub-factor-based evaluation indicators were also developed.

Usability and Evaluation of a Deployed 4G Network Prototype

  • Cuevas Antonio;Serrano Pablo;Moreno Jose I.;Bernardos Carlos J.;Jahnert Jurgen;Aguiar Rui L.;Marques Victor
    • Journal of Communications and Networks
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    • 제7권2호
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    • pp.222-230
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    • 2005
  • This article presents a field evaluation of an IP-based architecture for heterogeneous environments that has been developed under the aegis of the Moby Dick project, covering UMTS-like (universal mobile telecommunications system) TD-CDMA (time division-code division multiple access) wireless access technology, wireless and wired LANs. The architecture treats all transmission capabilities as basic physical and data-link layers, and replaces all higher-level tasks by IP-based strategies. The Moby Dick architecture incorporates mobile IPv6, fast handovers, AAA-control (authentication, authorisation, accounting), charging and quality of service (QoS) in an integrated framework. The architecture further allows for optimised control on the radio link layer resources. It has been implemented and tested by expert users, and evaluated by real users on field trials with multiple services available.