• 제목/요약/키워드: Appropriateness criteria

검색결과 139건 처리시간 0.022초

확장칼만필터와 최대공산법을 이용한 미사일 공력계수 모델의 설정 및 계수추정 (Missile Aerodynamic Structure and Parameter Identification Using the Extended Kalman Filter and Maximum Likelihood Method)

  • 성태경;이장규
    • 대한전기학회논문지
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    • 제35권6호
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    • pp.246-256
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    • 1986
  • Determination of an aerodynamic structure is a very important problem in missile modeling. The structure problem is to choose an appropriate set of aerodynamic coefficients to represent chosen missile dynamics. A methodology and criteria to determine a structure from windtunnel data are presented in this paper. Aerodynamic coeffecients in the determined structure are then identified by parameter identification algorithms. The identified coefficients are in turn used to verify appropriateness of the structure. The extended Kalman filter (EKF) and the maximum likelihood mithod (ML) are adopted as the parameter identification algorithm. Both methods exhibit satisfactory results. While the model identified by the ML more closely follows dynamics of the chosen missile than that by the EKF.

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비 통보식 조사를 통한 참고사서 업무능력 평가 (Unobtrusive Performance Evaluation of Reference Librarians in Academic Libraries of Korea)

  • 김영신
    • 한국문헌정보학회지
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    • 제29권
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    • pp.305-343
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    • 1995
  • The purposes of this study are to confirm the applicability of the unobtrusive evaluation to Korean libraries, to develop survey forms, check lists and evaluation criteria appropriate for Korean libraries, to analyze the relationship between the test variables and the performance level, to find out the causes of poor service if any, and to propose measures for improving the quality of reference services. The main results of the analyses are as follows : $\cdot$ The accuracy of answers was correlated to appropriateness of search process, way of providing answer, usage of language, approachability and use of second materials in the order named. That is, there was a strong correlation between accuracy and the variables related to librarian's behavior. $\cdot$ There was no statistically significant relationship between accuracy and the environmental aspects of reference department such as number of professional librarians, self-evaluation of reference collection, etc. $\cdot$ The main reasons for failing to give accurate answers were found to be weaknesses in understanding questions. developing search strategy logically and relating the querries to available information sources.

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Strategic Model Design based on Core Competencies for Innovation in Engineering Education

  • Seung-Woo LEE;Sangwon LEE
    • International journal of advanced smart convergence
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    • 제12권3호
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    • pp.141-148
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    • 2023
  • As the direction of education in the fourth industry in the 21st century, convergence talent education that emphasizes the connection and convergence between core competency-based education and academia is emerging to foster creative talent. The purpose of this paper is to present the criteria for evaluating the competency of learning outcomes in order to develop a strategic model for innovation in engineering teaching-learning. In this paper, as a study to establish the direction of implementation of convergence talent education, a creative innovation teaching method support system was established to improve the quality of convergence talent education. Firstly, a plan to develop a teaching-learning model based on computing thinking. Secondly, it presented the development of a teaching-learning model based on linkage and convergence learning. Thirdly, we would like to present educational appropriateness and ease based on convergence learning in connection with curriculum improvement strategies based on computing thinking skills. Finally, we would like to present a strategic model development plan for innovation in engineering teaching-learning that applies the convergence talent education program.

Determining the complexity level of proceduralized tasks in a digitalized main control room using the TACOM measure

  • Inseok Jang;Jinkyun Park
    • Nuclear Engineering and Technology
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    • 제54권11호
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    • pp.4170-4180
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    • 2022
  • The task complexity (TACOM) measure was previously developed to quantify the complexity of proceduralized tasks conducted by nuclear power plant operators. Following the development of the TACOM measure, its appropriateness has been validated by investigating the relationship between TACOM scores and three kinds of human performance data, namely response times, human error probabilities, and subjective workload scores. However, the information reflected in quantified TACOM scores is still insufficient to determine the levels of complexity of proceduralized tasks for human reliability analysis (HRA) applications. In this regard, the objective of this study is to suggest criteria for determining the levels of task complexity based on logistic regression between human error occurrences in digitalized main control rooms and TACOM scores. Analysis results confirmed that the likelihood of human error occurrence according to the TACOM score is secured. This result strongly implies that the TACOM measure can be used to identify the levels of task complexity, which could be applicable to various research domains including HRA.

도시내 한옥보존지구 지정을 위한 기준에 관한 연구 -서울시 한옥보존지구를 사례로- (A Study on Criteria for Establishing the Korean - Style House Preservation Area in Urban Areas - Focused on the Case of the Korean - Style Preservation Area in Seoul City-)

  • 김미진;양윤재
    • 한국조경학회지
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    • 제13권2호
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    • pp.71-90
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    • 1985
  • ^x This study is composed of four Process. Process 1 suggests the background, purpose and necessity to provide with criteria for establishing Korean-style house preservation area including the present situation of the established area in our country. Also it is provided with the approach and the substantial realm to discuss the established criteria for the subject of this thesis. Process 2 dealt with theoretical parts as a premise to suggest the established criteria for the Korean- style house preservation area : 1) Original background of the Korean- style house, characteristic of the Korean traditional housing, changed situation of the Korean- style house based on the epoch, classified into the characteristic of the Korean- style house. 2) The characteristic of the Korean- style house and its values existed in the present urban areas are investigated by synthesizing such contents. 3) The significance for establishing the preservation area of the Korean- style houses in urban areas which is insufficient systematically in suggested as follows : First, establishment of the preservation area of the Korean- style houses with regard to the traditional succession of cultural properties. Second, acknowledging preservation problems of cultural properties in our country due to the world- wide tendency, preservation of historical environment of new comprehensive concept for the preservation of cultural properties. Process 3, as a case study on the establishment of the preservation area, describes a framework for investigating and analyzing the status by reviewing the present situation of the Korean- style preservation area in Seoul city which is established as the preservation area. Process 4 suggests seven criteria with regard to the establishment of the preservation area. 1) A decisive criterion for the Korean- style house to divide into Korean- style house and non- Korean style house (proper building and nonproper building) for the preservation. 2) A concrete decisive criterion for the Korean- style house with regard to valuable endowment with dominent factors in its landscape. 3) A decisive criterion for the review of the landscape preservation for the nonproper building. 4) Suggesting logical evidences for the above second and third criterion (suggesting appropriateness). 5) Dividing into following two criteria for the decision of the building condition. a) A decisive criterion of the Korean- style house's condition. b) A decisive criterion of non- Korean style house's condition. 6) A selective criterion for the preservation building after synthesizing above five criteria. 7) Final criterion for establishing the preservation area with regard to systematic particulars.

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DRM 소프트웨어의 기능적합성 평가 척도의 개발 (Development of Functional Suitability Evaluation Measure of DRM Software)

  • 이하용;양효식
    • 디지털융복합연구
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    • 제14권5호
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    • pp.293-300
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    • 2016
  • DRM 소프트웨어가 디지털 저작권을 적절히 보호해 주기 위해서는 필요한 기능에 대한 성숙도(completeness), 정확성(correctness), 타당성(appropriateness) 등이 준수되어야 한다. 따라서 관련 표준에 입각한 DRM 소프트웨어의 기능성 평가 방법의 체계화가 필수적으로 요구된다. 본 논문에서는 국제표준의 소프트웨어 품질평가 표준을 기반으로 DRM 소프트웨어의 성숙도, 정확성, 타당성을 포괄하는 기능적합성(Functional Suitability)에 관한 품질을 측정하는 모델을 구축하고자 하였다. 이를 위해 DRM 소프트웨어의 기반 기술과 기능적합성에 관한 품질 요구사항을 분석하여 국제표준을 기반으로 한 기능적합성 평가모델을 개발하였다. 본 연구를 통해 DRM 소프트웨어의 품질수준을 높이기 위한 기능적합성 평가 기준을 확보할 수 있을 것으로 사료된다. 향후 평가사례의 축적을 통해 본 DRM 소프트웨어 기능적합성 평가모델의 적합성과 타당성을 제고할 필요가 있다.

국내 3차 병원의 비만 암환자에서 각각 다른 체중 측정 공식들을 적용한 piperacillin/tazobactam의 용량 적절성 비교 연구 (Comparison of Appropriate Piperacillin/Tazobactam Doses in Korean Obese Patients with Cancer Based on Different Body Size Descriptor Equations in a Tertiary Care Hospital)

  • 김지현;양영모;윤현옥;최은주
    • 한국임상약학회지
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    • 제27권2호
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    • pp.83-91
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    • 2017
  • Background: Piperacillin/tazobactam (TZP) is an antibiotic against a broad spectrum of gram-positive, gram-negative, and aerobic and anaerobic strains of bacteria. Due to changes in its pharmacokinetic and pharmacodynamic parameters by TZP-treated patients' renal functions and obesity, it is important to administrate and monitor TZP based on their renal functions and Body Mass Index (BMI) levels. The purpose of this study was to determine the appropriateness of administration doses of TZP based on renal functions of obese cancer patients in a tertiary hospital. Methods: This study was retrospectively conducted with obese cancer patients with $BMI{\geq}30kg/m^2$ in a tertiary hospital, Korea from September 2004 to August 2014. Data were collected through Electronic Medical Record (EMR) which contained laboratory data and TZP dosing of each patient. Results: Among 7,058 patients during the study period, 102 prescriptions were selected based on inclusion and exclusion criteria and classified by their renal functions. Although TZP should be used based on patients' renal functions to adjust its dose, its initial dose and dosing interval were consistently used without considering patients' renal functions on a regular basis. Especially, in the comparison with FDA dosing standard of TZP, approximately twice patients with $20mL/min{\leq}CrCl{\leq}40mL/min$ received domestically 4.5 g instead of 2.25 g as the TZP starting dose. Conclusion: The appropriate doses of TZP were administered to almost all of obese cancer patients; however, the recommended TZP dose was different between Korea and other countries by twice the amount. Further related studies are necessary to clearly determine the results, to optimize TZP treatment for obese patients with cancer in clinical practice, and to design and develop new TZP formulations for them in pharmaceutical industry.

Efficacy of mid-upper arm circumference in identification, follow-up and discharge of malnourished children during nutrition rehabilitation

  • Mogendi, Joseph Birundu;De Steur, Hans;Gellynck, Xavier;Saeed, Hibbah Araba;Makokha, Anselimo
    • Nutrition Research and Practice
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    • 제9권3호
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    • pp.268-277
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    • 2015
  • BACKGROUND/OBJECTIVES: Although it is crucial to identify those children likely to be treated in an appropriate nutrition rehabilitation programme and discharge them at the appropriate time, there is no golden standard for such identification. The current study examined the appropriateness of using Mid-Upper Arm Circumference for the identification, follow-up and discharge of malnourished children. We also assessed its discrepancy with the Weight-for-Height based diagnosis, the rate of recovery, and the discharge criteria of the children during nutrition rehabilitation. SUBJECTS/METHODS: The study present findings from 156 children (aged 6-59 months) attending a supplementary feeding programme at Makadara and Jericho Health Centres, Eastern District of Nairobi, Kenya. Records of age, weight, height and mid-upper arm circumference were selected at three stages of nutrition rehabilitation: admission, follow-up and discharge. The values obtained were then used to calculate z-scores as defined by WHO Anthro while estimating different diagnostic indices. RESULTS: Mid-upper arm circumference single cut-off (< 12.5 cm) was found to exhibit high values of sensitivity, specificity, positive predictive value, negative predictive value, positive likelihood ratio, negative likelihood ratio at both admission and discharge. Besides, children recorded higher rate of recovery at 86 days, an average increment of 0.98 cm at the rate of 0.14mm/day, and a weight gain of 13.49gm/day, albeit higher in female than their male counterparts. Nevertheless, children admitted on basis of low MUAC had a significantly higher MUAC gain than WH at 0.19mm/day and 0.13mm/day respectively. CONCLUSIONS: Mid-upper arm circumference can be an appropriate tool for identifying malnourished children for admission to nutrition rehabilitation programs. Our results confirm the appropriateness of this tool for monitoring recovery trends and discharging the children thereafter. In principle the tool has potential to minimize nutrition rehabilitation costs, particularly in community therapeutic centres in developing countries.

수치해석에 의한 직매형 앵커기초의 인장설계기준 평가 (An Evaluation of Tensile Design Criteria of Cast-In-Place Anchor by Numerical Analysis)

  • 서용표;장정범
    • 한국전산구조공학회논문집
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    • 제18권3호
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    • pp.303-309
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    • 2005
  • 본 연구에서는 국내 원전에서 기기 정착을 위하여 가장 널리 적용되는 직매형 앵커기초를 대상으로 앵커기초의 인장 설계기준에 대한 적정성을 검토하기 위하여 수치해석이 수행되었다. 본 연구에서 수치해석모형에 적용된 파괴기준으로서 콘크리트와 같은 유사 취성재료에는 Microplane모형이, 앵커볼트와 같은 연성재료에는 탄성-완전 소성모형이 적용되었다. 그리고, 균열 발생현상을 모사하기 위하여 분산균열모형을 채택하였다. 개발된 수치해석모형은 다양한 경우의 실증시험결과를 근거로 신뢰성이 검증되었으며, 검증된 수치해석모형과 앵커볼트의 유효매입깊이를 변수로 한 다양한 경우에 대한 수치해석을 통하여 직매형 앵커기초의 인장설계기준으로서 적용이 가능한 ACI 349 Code와 CEB-FIP Code가 평가되었고, 그 보수성이 확인되었다.

주요 간호활동의 건강보험 수가 적절성에 관한 연구 (A Study on the Appropriateness of Health Insurance Fee in Main Nursing Practices)

  • 김윤미;김경숙;박미미;김인숙;김미영
    • 임상간호연구
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    • 제23권2호
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    • pp.236-247
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    • 2017
  • Purpose: This study was to present improvement strategy and the problems of the nursing fee in national health insurance system. Methods: A total of 23 nursing activities performed by nurses were selected. Data were collected the relative value score and criteria of the Health Insurance Review & Assessment Agency. Sixty clinical nursing experts panels were composed and nursing time surveyed self-reported method. The actual fee was calculated through the nursing time, relative value score and actual labor costs. Nextly, the labor costs analyzed was compared with that in the national health insurance. Results: Although the practices were mainly performed by the nurse, other occupations have been recorded as main practitioners and the time of the nursing activity is partially improperly reflected. Additionally, although the nurse practiced mainly in glucose (semi-quantitative) test, it was confirmed that the principal practitioner was described as a clinical pathologist. The the labor cost gap was estimated that is 9.3 times (median) and 11.9 times (average) in this analysis. Conclusion: This study suggests that it is necessary to legislate a policy that can improve the quality of clinical nursing by reinforcing the appropriateness and improving nursing fee through reflection of the actual time spent for nursing care.