• 제목/요약/키워드: evaluation studies

검색결과 7,478건 처리시간 0.041초

CIPP 평가모형에 기반한 항공종사자 전문교육기관 교육과정(항공정비사) 평가준거 개발 (Evaluation Criteria Development of Courses Based on CIPP Evaluation Model Dedicated to Approval of Training Organizations)

  • 남명관;박상범
    • 한국항공운항학회지
    • /
    • 제22권4호
    • /
    • pp.8-14
    • /
    • 2014
  • The purpose of this research was to develop evaluation conformity to operate courses based on CIPP evaluation model dedicated to approval of training organizations. In order to achieve the goal, the researchers scrutinized related documents and precedent studies, initiated the draft for evaluation conformity to operate courses and secured validity for evaluation conformity initiated through Delphi Method survey. To secure validity for evaluation conformity, the researchers conducted two Delphi Method surveys of an expert panel of 22 professionals from relevant fields including officials from the Ministry of Land, Infrastructure and Transport, researchers from Korea Transportation Safety Authority, instructors from approved training organizations and officials from industries. Through the surveys, the researchers determined 4 evaluation areas, 13 evaluation items and 52 evaluation indexes as the evaluation conformity to operate courses for aircraft maintenance mechanics. On top of that, the researchers established evaluation system in the courses for aviation professionals (aircraft maintenance mechanics), and suggested a follow-up studies regarding managing the quality of education.

Immunotoxicology Evaluation of New Drugs

  • Ahn, Chang-Ho;Kenneth L. Hastings
    • Toxicological Research
    • /
    • 제17권
    • /
    • pp.211-216
    • /
    • 2001
  • Drugs can have various adverse effects on the immune system including unintended immun-osuppression, induction of both drug-specific immune responses (including drug allergies) and non-specific immunostimulation (including autoimmune reactions), and direct activation of effector mechanisms (such as histamine release). As a practical matter, the Center for Drug Evaluation (CDER) relies on standard non-clinical toxicology studies to detect unintended immunosuppression. Specific assays using guinea pigs and mice are available to identify drugs that can induce immune-mediated dermal hypersensitivity reactions. Respiratory and systemic hypersensitivity and autoimmune reactions are more difficult to model in non-clinical studies. Unintended nonspecific immunstimulation can be detected in animal studies. CDER is currently developing specific guidance for evaluating potential drug immunotoxicity.

  • PDF

TRELSS를 이용한 전력계통의 확률론적 신뢰도 평가 II - IEEE RTS 사례연구를 중심으로 - (Probabilistic Reliability Evaluation of Power System using TRELSS II - Focused on Case Studies of IEEE RTS -)

  • 트란트룽틴;강성록;최재석;전동훈;추진부
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2003년도 추계학술대회 논문집 전력기술부문
    • /
    • pp.67-70
    • /
    • 2003
  • In recent, the importance and necessity of some studies on reliability evaluation of grid come from the recent black-out accidents occurred in the world. The quantity evaluation of transmission system reliability is very important under competitive electricity environment. The reason is that the successful operation of electric power under the deregulated electricity market depends on transmission system reliability management. The various results of many case studies for the IEEE 25buses system using the Transmission Reliability Evaluation for Large-Scale Systems(TRELSS) Version 5_1, a program made in EPRI are introduced in this paper. Some sensitivity analysis has been included. This paper suggests that the some important input parameters of the TRELSS can be determined optimally from this sensitivity analysis for high reliability level operation of a system.

  • PDF

모바일 분노조절훈련 애플리케이션의 사용성 평가 연구 (Study on the Usability Evaluation of Mobile Anger Control Training Applications)

  • 유경한;강지안;최지은;조재희
    • 한국멀티미디어학회논문지
    • /
    • 제25권11호
    • /
    • pp.1621-1633
    • /
    • 2022
  • The present study aims to design an application for anger control training of individuals and test its practical usability with the goal of encouraging preventive training in daily life. This study also investigates, through usability evaluation, whether users can use the application to carry out the actual anger management training program, whether it is useful and convenient, and whether it produces adequate learning effects. In order to conduct usability evaluation, a usability evaluation scale comprised of six factors-utility, reuse intention, learning, error, and reflectivity-was derived, and survey items tailored to each factor were produced. The association between usability evaluation elements, user demographic parameters, mobile usage behavior, and state anger was also examined. The result demonstrated that additional menus and features are necessary to increase the usability of the application for anger management. The result also revealed that it is vital to build an intuitive application interface that users unfamiliar with mobile app functionality can easily navigate, as well as to add entertaining components in the content, as users may be somewhat bored. On the basis of the findings, ideas of modifying and creating anger management training programs were discussed.

국외 가족간호중재 연구의 현황과 질 분석 (Research Trends and Quality Evaluation of Family Nursing Interventions Outside Korea)

  • 오가실;안현미;라진숙;조은영
    • 지역사회간호학회지
    • /
    • 제20권4호
    • /
    • pp.421-432
    • /
    • 2009
  • Purpose: This study investigated trends in family nursing intervention studies and evaluated the quality of studies using the RCT design. Methods: This study included a total of 898 abstracts published from 1977 to 2007 in order to describe trends in family nursing intervention studies. Out of 898 studies, 153 RCT studies were selected for quality evaluation. The criteria of Jadad et al. (1996) were employed for the quality evaluation. Results: The number of RCT studies on family nursing interventions increased since 2001. Only 6.8% of the studies were published in the area of nursing. Most of the family interventions (27.1%) focused on individual family members and only 8.2% of the studies provided interventions to family as a whole unit. Nine different modes of family nursing intervention could be categorized, but none of the studies used the double blind design. Few studies utilized protocols for interventions. Only 17.5% of the studies reported the rationale for sample size. The mean score was 1.6 out of 5 according to the criteria of Jadad et al. (1996). Conclusion: Refined definitions and attributes of family nursing intervention modes are needed. Most of the studies did not meet the expectations of RCT. Thus, it is needed to improve the quality of design. More RCT studies should be conducted to provide evidence-based practice of family nursing interventions.

  • PDF

대규모 다계층 MADM 문제의 퍼지평가 알고리즘에 관한 연구 - 퍼지측도의 동정을 중심으로 - (A Study on the Fuzzy Evaluation Algorithm for Large Scale Hierarchical MADM Problem -Centering on the Identification of Fuzzy Measure-)

  • 임봉택;양원;이철영
    • 한국항만학회지
    • /
    • 제12권1호
    • /
    • pp.9-17
    • /
    • 1998
  • The evaluation structure of complex problems is composed of multi-attributes and hierarchy. A many studies were existed on this problems, but that based on the assumption that the evaluation elements were independent. The actual evaluation problems have the complexity, ambiguity and interlinkage among the elements. In this situation, the fuzzy evaluation process is very effective in settling the complex problems. For evaluation of large scale hierarchical MADM problem, the fuzzy evaluation algorithm is developed in this paper, and that is centering on the identification of fuzzy measures. In this study, we newly identified the weight and interaction among the evaluation attributes. The results of this study are as follows: we can identified the hierarchical structure of the evaluation problem which is composed of the evaluation structure, function and hierarchy; we improved the existed weighting method which could be accomplished by normalizing process, considering the uncertainty and new weight integrating method which come from Dempster-Shafer theory. And we take into account the interaction properties among more than 3 evaluation attributes, which can be compared with the existed studies in which only 2 evaluation attributes taked into account.

  • PDF

딥페이크 영상 학습을 위한 데이터셋 평가기준 개발 (Development of Dataset Evaluation Criteria for Learning Deepfake Video)

  • 김량형;김태구
    • 산업경영시스템학회지
    • /
    • 제44권4호
    • /
    • pp.193-207
    • /
    • 2021
  • As Deepfakes phenomenon is spreading worldwide mainly through videos in web platforms and it is urgent to address the issue on time. More recently, researchers have extensively discussed deepfake video datasets. However, it has been pointed out that the existing Deepfake datasets do not properly reflect the potential threat and realism due to various limitations. Although there is a need for research that establishes an agreed-upon concept for high-quality datasets or suggests evaluation criterion, there are still handful studies which examined it to-date. Therefore, this study focused on the development of the evaluation criterion for the Deepfake video dataset. In this study, the fitness of the Deepfake dataset was presented and evaluation criterions were derived through the review of previous studies. AHP structuralization and analysis were performed to advance the evaluation criterion. The results showed that Facial Expression, Validation, and Data Characteristics are important determinants of data quality. This is interpreted as a result that reflects the importance of minimizing defects and presenting results based on scientific methods when evaluating quality. This study has implications in that it suggests the fitness and evaluation criterion of the Deepfake dataset. Since the evaluation criterion presented in this study was derived based on the items considered in previous studies, it is thought that all evaluation criterions will be effective for quality improvement. It is also expected to be used as criteria for selecting an appropriate deefake dataset or as a reference for designing a Deepfake data benchmark. This study could not apply the presented evaluation criterion to existing Deepfake datasets. In future research, the proposed evaluation criterion will be applied to existing datasets to evaluate the strengths and weaknesses of each dataset, and to consider what implications there will be when used in Deepfake research.

EVALUATION OF ILLIQUID ASSETS

  • Koo, Hyeng-Keun
    • 재무관리논총
    • /
    • 제3권2호
    • /
    • pp.235-256
    • /
    • 1996
  • This paper studies evaluation of illiquid assets by using a consumption and investment model. In particular, the paper defines the marginal values of illiquid assets and shows how optimal consumption and investment policies are related to the marginal values. The general results are illustrated by two concrete examples.

  • PDF

영종도 지반공학 야외시험장에서의 사질토지반 개량효과 평가 (Evaluation of Ground Improvement on Sands at Yongjong Island Geotechnical Experimental Site)

  • 김동수;박형춘;김영웅;김수일
    • 한국지반공학회:학술대회논문집
    • /
    • 한국지반공학회 1999년도 봄 학술발표회 논문집
    • /
    • pp.439-446
    • /
    • 1999
  • In situ experimental studies were Performed at Yongjong Island Geotechnical Experimental Site to evaluate the ground densification on sand deposited. Standard penetration test, cone penetration test, and SASW test were performed and soil profiles and quality of ground improvements were evaluated. The feasibility of applying SASW method were verified by comparing test results. The evaluation technique of in-situ density using SASW and resonant column tests was proposed, and the reliability of proposed method was verified by performing case studies.

  • PDF

공공 웹 서비스의 경제성 평가에 관한 연구 (A Research on Economic Evaluation of Public Web Service)

  • 박정선
    • 한국전자거래학회지
    • /
    • 제6권2호
    • /
    • pp.57-71
    • /
    • 2001
  • This paper provides an economic evaluation model for public web services which are mainly operated by government agencies. Though there are various services, this paper focus on services for bottleneck problem solving and management information providing. This paper suggests quantitative and qualitative effects of public web services and evaluates them with I-NET users using e-mail surveys. This Paper mv provide a guideline for the future investment on public web services.

  • PDF