• Title/Summary/Keyword: Result Analysis and Evaluation

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Strength Evaluation of a Doubler Plate of a Ship S011c111re subjected to Biaxial In-plane Compression and Shear Load (양축방향 면내압축과 전단하중을 받는 선박 이중판의 강도 평가)

  • 함주혁
    • Journal of Ocean Engineering and Technology
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    • v.15 no.1
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    • pp.85-91
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    • 2001
  • A study for the structural strength analysis on the doubler plate subjected biaxial in-plane compression and shear load has been performed through the systematic evaluation process. In order to estimate the proper static strength of the doubler plate, non-linear elasto-plastic analysis is introduced. Gap element modeling for contact effect between the main plate and the doubler is prepared and nonlinear analysis procedures are illustrated based on MSC/N4W. In addition, some design guides are suggested through the consideration of several important effects such as corrosion of main plate, doubler width, doubler length and doubler thickness. Finally, theses result are compared with a developed design formula based on the buckling strength and general trends. The design guides, according to the variation of design parameters are discussed.

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A Study on the Development of Meta-Evaluation Indicators for Defense R&D Programs by Using FA/AHP Methods (FA/AHP 기법을 활용한 국방연구개발사업 메타평가 지표 개발에 관한 연구)

  • Kim, Soon-Yeong
    • Journal of Korea Technology Innovation Society
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    • v.12 no.1
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    • pp.113-136
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    • 2009
  • The purpose of this study is to develop meta evaluating indicators for Defense R&D Programs in Korea. At first, the four components of this meta evaluation model were designed, which are evaluation context, evaluation input, evaluation process, evaluation output. And fifty two indicators were developed for this meta evaluation. Basic model of meta evaluation was derived from the literature review and brain storming. And this meta evaluation model was determined by adapting the result of experts who performed evaluations for Defense R&D Programs in recent years. Factor Analysis method was used to verify the validity of meta evaluation model. The survey of fifty three members turned out that Cronbach' ${\alpha}$ was over 0.6 in evaluation components and items. And the reliability of evaluation context was 0.877, that of evaluation input was 0.755, that of evaluation process was 0.755, that of evaluation output was 0.755 respectively. Analytic Hierarchy Process (AHP) method was used in assigning the evaluation weight. The survey of twenty two members showed that the Consistency Ratio was 0.09 in evaluation components and items.

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Elementary Teachers' Professionalism for Teaching Environmental Subjects (초등교사의 환경관련 수업에 대한 교사전문성)

  • Son Yeon-A;Kim Kyoung-Ran;Min yeong-Mee;Choi Don-Hyung
    • Journal of Korean Elementary Science Education
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    • v.24 no.2
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    • pp.174-182
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    • 2005
  • The purpose of this study was to analyze the professionalism of elementary school teachers and to draw out factors which elementary teachers should try to improve their professionalism for environmental education. For the study, both Quantitative analysis and qualitative methodologies were applied: First, randomly selected 483 elementary teachers from Seoul and Gyeonggi self responded to 5 evaluation areas by Hungerford et al. (1994) to evaluate their environmental education professionalism through the use of five point Likert scale. Second, 2 elementary teachers' environmental classes were observed for the purpose of analyzing strengths and weaknesses in classroom instruction, and then the results of self-evaluation on environmental education professionalism and teacher professionalism as shown in the classes were compared. It was found that 483 elementary teachers including 2 teachers fer analyzing classroom instruction who performed a self-evaluation gave themselves mid-scores on the Hungerford et al.'s 5 evaluation areas. However, the result of self-evaluation did not correspond with the result of actual class observation and teacher interview. That is, the actual environmental classes conducted by 2 teachers did not seemed to reflect the evaluation areas which were the foundation of the study: the conceptual awareness, the investigation & evaluation, environmental action skills, and educational application. The results of this study can be used as the basis reference to develop teaching-learning program and in-service programs for professional development of teachers for successful application of environmental education in elementary school classes.

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Prediction of the Level of Influence of Average particle Size and Color n Evaluation of Building Material (재료의 색채와 입도가 건축 재료 평가에 미치는 영향도 예측)

  • 이진숙;진은미;오도석
    • Korean Institute of Interior Design Journal
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    • no.26
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    • pp.57-63
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    • 2001
  • The aim of this study is to measure sensitivity reaction of human being with a physical properties of color and average size of particle for building materials and predict the influence of color and average size of particle in evaluation of building materials. As a results, 1) In results of qualitative evaluation construction, all 16 adjectives were extracted by higher evaluation items and ,total 14 adjectives were extracted as evaluation adjectives except adjectives of a contrary concept in each other. 2) According to the result of factor analysis, all 4 group of $\ulcirner$potency$\lrcirner$, $\ulcirner$activity$\lrcirner$, $\ulcirner$evaluation$\lrcirner$, $\ulcirner$warmness$\lrcirner$ were extracted. In this time, $\ulcirner$potency$\lrcirner$ as the first factor indicates the most hign original value. Consequently, $\ulcirner$potency$\lrcirner$ factor have an hign influence in evaluation of building materials. 3) As a influence analysis of evaluation variable by evaluation item $\ulcirner$potency$\lrcirner$ factor have an high influence by influence of average size of a particle, $\ulcirner$activity$\lrcirner$ factor have influence hignly by influence of brightness, $\ulcirner$evaluation$\lrcirner$ factor have an hign influence by influence of average site of a particle and the hue, $\ulcirner$warmness$\lrcirner$ factor have an hign influence mainly by influence of the hue

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A Study on Lighting Environmental Evaluation Based on Biophilia (바이오필리아 이론에 기초한 빛 환경 평가 연구)

  • Yang, So-Yeon;Lee, Tae-Kyung
    • Journal of the Korean housing association
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    • v.28 no.1
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    • pp.19-26
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    • 2017
  • The purpose of study developing Development evaluation methods of light environment for indoor of middle school based on 'Biophilia'. This study is mainly based on literary review and survey research. To construct structural questionnaire based on 'Light and Space' of Biophilic Design for well being lighting environmental evaluation. We construct structural questionnaire that have 10 evaluation factors and 60 detail evaluation items to evaluate lighting environment for indoor of middle school based on biophilia theory. To survey students' subjective evaluation, the participant of study has been selected with the total number of 232 middle school students. The data were analyzed using Multiple Regression Analysis by IBM SPSS statistics 21. The result of pearson correlation analysis between satisfaction of indoor light environment and school life satisfaction, satisfaction of the whole indoor light environment was found showing positive relationship with school life satisfaction. The results of light environmental evaluation were factor 3,6,8,9 was lower than others. This study was designed to suggesting an evaluation method of light environment of the school. Biophilia theory said when 10 evaluation factor are in harmony, light environment can be well-being. So, factor 3,6,8,9 that are important elements to increase the satisfaction of lighting environment are consider carefully for the plan of indoor lighting environment.

A Study on the Evaluation of Fashion Design Based on Big Data Text Analysis -Focus on Semantic Network Analysis of Design Elements and Emotional Terms- (빅데이터 텍스트 분석을 기반으로 한 패션디자인 평가 연구 -디자인 속성과 감성 어휘의 의미연결망 분석을 중심으로-)

  • An, Hyosun;Park, Minjung
    • Journal of the Korean Society of Clothing and Textiles
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    • v.42 no.3
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    • pp.428-437
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    • 2018
  • This study derives evaluation terms by analyzing the semantic relationship between design elements and sentiment terms in regards to fashion design. As for research methods, a total of 38,225 texts from Daum and Naver Blogs from November 2015 to October 2016 were collected to analyze the parts, frequency, centrality and semantic networks of the terms. As a result, design elements were derived in the form of a noun while fashion image and user's emotional responses were derived in the form of adjectives. The study selected 15 noun terms and 52 adjective terms as evaluation terms for men's striped shirts. The results of semantic network analysis also showed that the main contents of the users of men's striped shirts were derived as characteristics of expression, daily wear, formation, and function. In addition, design elements such as pattern, color, coordination, style, and fit were classified with evaluation results such as wide, bright, trendy, casual, and slim.

Dynamic Design of Machine Tool Structure by Substructure Synthesis Method (부분구조 합성법을 이용한 공작기계 구조물의 동적설계)

  • 이원광
    • Journal of the Korean Society of Manufacturing Technology Engineers
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    • v.5 no.4
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    • pp.82-89
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    • 1996
  • In this study, to choose the drilling m/c with analysis model for dynamic design of machine tool strctures, are used substucture syntheis method for reduction to degrees of freedom of dynamic model and analysis evaluation of substructures The dynamic factors of substurctures are examined by substructure synthesis method. And that dynamic design of structures for energy balancing are performed. The computer program for calculated of the dynamic and energy distribution analysis was developed. Result of numerical analysis by developed program obtained to conclusion as following. The design of machine tool structures by dynamic avoid the resonances, and are known to considered based on the energy balancing. These methods can be used effectively for the performance evaluation, design modification and improvement of dynamic performance evaluation, design modification and improvement of dynamic performance of machine tools.

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The Study on the Consumer의s Quality Evaluation on the Apparel (의류제품에 대한 소비자의 품질평가 속성)

  • Kim, Mihn-Soo
    • Journal of the Korea Fashion and Costume Design Association
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    • v.4 no.2
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    • pp.103-126
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    • 2002
  • The purpose of this study was to examine the consumer's quality evaluation on the apparel of adult males and females. A demonstrative study was conducted using a questionnaire on adults over 20 years old who were considered to afford to purchase clothes. A total of 380 questionnaires were used for the demonstrative analysis. The study used SPSSWIN V.8.0 for the analysis. Frequency analysis, ANOVA, t-test, multiple regression analysis, and duncan test are executed. The study result is as follows: First, 19 attributes of customer quality perception are grouped into 2 categories of satisfier, dissatisfier factor by the role of each attribute. Second, significant differences are found partly in quality indications- including fabric compositions, sizes, fabric care, manufactured-place, and the place of origin, the importance degree of indication and general satisfaction in quality indicating system.

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Cleanup Quantification Method for Evaluation of Window Cleaning Work (유리창 청소작업 평가를 위한 청결도 정량화 방안)

  • Kim, Kyoon-Tai;Jun, Young-Hun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2018.05a
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    • pp.320-321
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    • 2018
  • In the past, the results of window cleaning work have been judged subjective and complaints about cleaning results are being raised. In this study, we tried to quantify the evaluation of the cleaning result. For the quantification of the evaluation, a colorimeter was selected and the basic experiment was carried out. In addition, this study examined the use of standard dust powder for artificial production of contaminants in glasses. Further evaluation and analysis will be carried out to quantify the evaluation criteria of the cleaning results.

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A study on the priorities through weight analysis for each index of performance evaluation of public sewage operation agency (공공하수도 관리대행 성과평가 지표별 가중치분석을 통한 우선순위에 대한 연구)

  • Wi, Mikyung;Park, Chulhwi
    • Journal of Korean Society of Water and Wastewater
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    • v.34 no.6
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    • pp.495-502
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    • 2020
  • The 37 indicators for performance evaluation of public sewage management agencies are divided into four major categories (agency manpower management ability, wastewater treatment plant operation and management, sludge and water reuse, service quality) in the first stage, and the necessity and score acquisition for the detailed indicators by each major category in the second stages. Priority was investigated through the Analytic Hierarchy Process (AHP) analysis technique for ease and relevance of company efforts. Also, based on the results of this analysis, integrated type weighting and relative importance were analyzed. As a result of the analysis, the weight and relative importance of the first stage classification were in the order of wastewater treatment plant operation and maintenance, operation agency manpower management ability, sludge and water reuse, and service quality. As a result of analyzing the weights and priorities of the detailed performance indicators in the second stage, it was found that operator's career years, the percentage of certification holding rate in operators, compliance with the effluent water quality standards, training times for operators, and efforts to manage hazardous chemicals were important. Some of the indicators of operation agency performance evaluation may include indicators in which the performance of the company's efforts is underestimated or overestimated. In order to improve this, it is necessary to give weights in consideration of the necessity of the indicator, the relevance of the company's efforts, and the ease of obtaining scores.