• Title/Summary/Keyword: reliability growth analysis

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Analysis of the Feasibility and Reliability of Models Measuring National Innovative Capability: with a Focus on the IUS of the EU (국가혁신역량 측정모형의 신뢰성과 타당성 분석: 유럽연합의 IUS를 중심으로)

  • Um, Ik-Cheon;Cho, Joo-Yeon;Kim, Dae-In
    • Journal of Korea Technology Innovation Society
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    • v.17 no.1
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    • pp.45-67
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    • 2014
  • National Innovative Capability (NIC) is an important decisive factor where economic growth is concerned. As such, it is very important to measure and manage NIC. The composite index approach is one of the widely used approaches to measuring NIC, but there have been insufficient reviews of its feasibility and reliability. This paper conducted an analysis of the feasibility and reliability of the report on the last three years (i.e. 2011 through 2013) of the Innovation Union Scoreboard (IUS) of the EU, which is the most representative means of measuring NIC. It turned out that its reliability meets the recommended criteria as a result of Chronbach's alpha-based test of the models of IUS-related composite index. However, neither the absolute fit index nor the incremental fit index was found to meet the recommended criteria in a construct validity analysis. It also turned out that predictive validity is very low as a result of panel linear regression analysis of sectors and items of IUS-related composite index. This paper presents a number of considerations to be made when measuring national innovative capability using the composite index approach, as well as major policy suggestions based on the results of the analysis.

Reliability and Validity of the Korean Version of Job Embeddedness for Measurement Tool of Dental Hygienist (치과위생사의 한국어판 직무착근도 측정도구의 타당도와 신뢰도)

  • Han, Ye-Seul;Moon, Hak-Jin;Cho, Young-Sik
    • Journal of dental hygiene science
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    • v.16 no.1
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    • pp.18-25
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    • 2016
  • The purpose of this study was to investigate a reliability and validity of the Korean version for measuring tool the job embeddedness of dental hygienists. The survey was modified and revised to fit into Korean culture. A survey was conducted with 274 dental hygienists in dental clinics. The data was used for the analysis of the study, using PASW Statistics 18.0 and IBM SPSS AMOS 7.0. The factor analysis showed that the job embeddedness of the dental hygienists was composed of three elements, namely 'organization fit', 'job connectivity', and 'personnel relationships'. The validity of the model examined by a confirmatory factor analysis satisfied most of the relevant requirements. All of the factors had the conceptual reliability and variant extracted index above the minimum requirements, ensuring reliability and concentrated validity. The Cronbach's alpha shows a good reliability. In conclusion, it was proven that dental hygienist's job embeddedness measurement tool has high validity and reliability. Further, this study could be used to improve dental hygienist's long term working, and the growth stage of dental clinic.

The Dual Mediating Effects of Growth mindset and Hope in the Relationship between Body Image and Successful Aging of the Elderly (노인의 신체이미지와 성공적 노화의 관계에서 성장 마인드셋과 희망의 이중 매개효과)

  • Hwang, Yeoun-Kyoung;Lee, Chang-Seek
    • Journal of Industrial Convergence
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    • v.18 no.1
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    • pp.87-96
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    • 2020
  • The purpose of this study was to examine the dual mediating effects of growth mindset and hope between body image and successful aging of the elderly. For this purpose, we surveyed 422 elderly people in D and S city of Chungcheongnam-do, and D metropolitan city. Collected data were analysed using SPSS 25.0 and PROCESS macro 3.4 program. Frequency analysis, reliability analysis and dual mediating effect analysis by using bootstrap were performed. The results of the study are as follows. First, as a result of correlation analysis there was a statistically significant positive correlation between variables. Second, as a result of path analysis, body image had a positive effect on growth mindset and hope, growth mindset had a positive effect on hope and successful aging, and hope also had a significant effect on successful aging. Third, as a result of dual mediation effect analysis, growth mindset and hope mediated in the relationship between body image and successful aging. This study provided new models and basic data by using body image, growth mindset and hope for successful aging of the elderly.

How Healthy is the Health related Informations brocated by TV News? (TV 뉴스에 보도된 건강관련 정보의 건강성과 해독성)

  • Kim, Shin-Jeong;Lee, Jung-Eun;Kim, Shin-Dong
    • Research in Community and Public Health Nursing
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    • v.12 no.2
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    • pp.513-531
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    • 2001
  • Television news programs are becoming significant source of health information. This study aims at investigating the current state of health coverage of the prime time news program in Korea. Data were collected from KBS 9 0'clock news in the period of thirteen months. from December 1. 1998. to November 1. 1999. The data were analyzed using content analysis method. and the reliability degree was 99.7% according to the Holsti's inter-coder reliability test. The current research classified 489 health related news items into 49 sub-categories and five health categories through content analysis. Some of the basic results of this study are as follows. 1. The frequency according to health category, health maintenance promotion(57.3%) topped followed by disease prevention(23.2%), disease treatment(14.9%), life ethics(4.0%), and growth development(0.6%). 2. According to human developmental age. for the most part(80.1 %) is applicable to the entire range of human developmental age. 3. Health maintennance promotion category take top of health category by the rate of 57.3% and contain 20 sub-categories. 4. News items in the life ethics category, which had six sub-categories. occupied only four percent of the total health related news. News in the growth development category included two sub categories and occupied 0.6% of the total news items. 5. In disease prevention and disease treatment category, infectious disease(33.2%) showed the highest percentage according to the WHO's international disease classification system. Disease prevention occupied 23.2% and contained eleven sub-categories while disease treatment occupied 14.9% and included ten sub-categories. Television news coverage on health showed a wide variety of selection in terms that they are reporting various issues. This study, however, found that some news items were confusing and failing in presenting scientific evidences. It is suggested that the television coverage on health could be beneficial to most of viewers in receiving important health information and guidelines, only if they are utilizing their own sound discretion in consuming those news.

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Analysis of Software Reliability Growth Model with Gamma Family Distribution (감마족 분포를 이용한 소프트웨어 신뢰 성장 모형의 분석)

  • Kan, Kwang-Hyun;Jang, Byeong-Ok;Kim, Hee-Cheul
    • Journal of IKEEE
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    • v.9 no.2 s.17
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    • pp.143-151
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    • 2005
  • Finite failure NHPP models proposed in the literature exhibit is either constant, monotonic increasing or monotonic decreasing failure occurrence rates per fault. For the sake of proposing shape parameter of the Gamma family distribution, used the special pattern. Data set, where the underlying failure process could not be adequately described by the knowing models, which motivated the development of the Gamma or Weibull model and Gompertz model. Analysis of failure data set that led us to the Gamma or Weibull model and Gompertz model using arithmetic and Laplace trend tests, bias tests was presented in this Paper.

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Mediating effect of growth mindset and grit between human rights victimization and self-esteem (인권피해와 자아존중감과의 관계에서 성장 마인드셋과 그릿의 매개효과)

  • Lee, Chang Seek;Park, Ji Young;Daniel, Nanje Bakoma;Ngonde, Sylvia;Faith, Akunne;Eboka, Mediki Augustine;Pamella, Ma Nsume
    • Journal of Digital Convergence
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    • v.15 no.9
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    • pp.15-21
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    • 2017
  • Our current study aimed to verify the mediating effect of growth mindset and grit in the relationship between human rights victimization and self-esteem. The survey was conducted on 233 college students. Reliability analysis, correlation analysis, and Macro Process were performed, and bootstrap method was used to verify the mediating effect of growth mindset and grit. The results were as follows. First, human right victimization were significantly and negatively correlated with self-esteem, growth mindset, and grit while self-esteem were significantly and positively correlated with growth mindset, and grit. Second, as a result of path analysis, the human rights victimization had a significant negative impact on self-esteem, growth mindset and grit. On the other hand, growth mindset and grit had a significant positive effect on self-esteem. Third, growth mindset and grit had a mediating effect in the relationship between human right victimization and self-esteem. This implied that self-esteem of college students can be increased by increasing their growth mindset and grit. Future research is needed to clarify the role of human rights research and growth mindset and self - esteem in college students.

Catalytic Mechanism for Growth of Carbon Nanotubes under CO-H2 Gas Mixture

  • Chung, Uoo-Chang;Kim, Yong-Hwan;Lee, Deok-Bo;Jeong, Yeon-Uk;Chung, Won-Sub;Cho, Young-Rae;Park, Ik-Min
    • Bulletin of the Korean Chemical Society
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    • v.26 no.1
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    • pp.103-106
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    • 2005
  • In order to investigate the catalytic mechanism for the growth of carbon nanotubes (CNTs), a comprehensive study was conducted using carbon materials synthesized at 680 ${^{\circ}C}$ with a gas mixture of CO-H$_2$ after reduction at 800 ${^{\circ}C}$ by H$_2$ gas from iron oxide, and metal Pt. The resulting material was observed by scanning electron microscopy (SEM) and X-ray diffraction patterns (XRD) after a variety of reaction times. The carbon materials synthesized by metal Pt were little affected by reaction time and the sintered particles did not form CNTs. Xray analysis revealed that metal Fe was completely converted to iron carbide (Fe$_3$C) without Fe peaks in the early stage. After 5 min, iron carbide (Fe$_3$C) and carbon (C) phases were observed at the beginning of CNTs growth. It was found that the intensity of the carbon(C) peak gradually increased with the continuous growth of CNTs as reaction time increases. It was also found that the catalyst of growth of CNTs was metal carbide.

Effect of academic burnout on academic self-efficacy of Chinese college students: Mediating effect of study engagement and moderated mediation effect of growth mindset (중국 대학생의 학업소진이 학업자기효능감에 미치는 영향: 학습몰입의 매개효과와 성장 마인드셋의 조절된 매개효과)

  • Meiping Wu;Chang Seek Lee
    • Industry Promotion Research
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    • v.9 no.1
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    • pp.231-239
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    • 2024
  • This study aims to verify the moderated mediating effect of a growth mindset on the effect of academic burnout on academic self-efficacy through study engagement among Chinese college students. Data were collected through a survey targeting 547 college students who were purposively sampled at a junior college in China. The collected data was analyzed using SPSS PC+ Win ver. 25.0 and SPSS PROCESS macro ver. 4.2. The applied statistical methods were frequency analysis, reliability analysis, correlation analysis, and moderated mediation effect analysis. The study showed that academic burnout had a significant negative correlation with growth mindset, study engagement, and academic self-efficacy. On the other hand, growth mindset, study engagement, and academic self-efficacy showed a significant positive correlation. Second, the moderated mediating effect of a growth mindset was verified in the effect of academic burnout on academic self-efficacy through study engagement. Based on these results, this study proposed a method to protect academic self-efficacy by applying study engagement and growth mindset in situations where academic burnout among college students reduces academic self-efficacy.

Activation Energy and Interface Reaction of Sn-40Pb/Cu & Sn-3.0Ag-0.5Cu/Cu (Sn-40Pb/Cu 및 Sn-3.0Ag-0.5Cu/Cu 접합부 계면반응 및 활성화에너지)

  • Kim, Whee-Sung;Hong, Won-Sik;Park, Sung-Hun;Kim, Kwang-Bae
    • Korean Journal of Materials Research
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    • v.17 no.8
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    • pp.402-407
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    • 2007
  • In electronics manufacturing processes, soldering process has generally been used in surface mounting technology. Because of environmental restriction, lead free solders as like a SnAgCu ternary system are being used widely. After soldering process, the formation and growth of intermetalic compounds(IMCs) are formed in the interface between solder and Cu substrate as follows isothermal temperature and time. In this studies, therefore, we investigated the effects of the Cu substrate thickness on the IMC formation and growth of Sn-40Pb/Cu and Sn-3.0Ag-0.5Cu/Cu solder joints, respectively. The effect of the Cu thickness in PCB Cu pad and pure Cu plate was analyzed as measuring of thickness of each IMC. After solder was soldered on PCB and Cu plate which have different Cu thickness, we measured the IMC thickness in solder joints respectively. Also we compared with the effectiveness of Cu thickness on the IMC growth. From these results, we calculated the activation energy.

Development of STAGE-GATE based Evaluation Index for the Improvement of Design Quality of Plant Material (플랜트 기자재 설계품질 향상을 위한 STAGE-GATE 기반 평가항목 개발)

  • Lee, In Tae;Baek, Dong Hyun
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.43 no.2
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    • pp.65-71
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    • 2020
  • Worldwide plant market keeps maintaining steady growth rate and along with this trend, domestic plant market and its contractors also maintain such growing tendency. However, in spite of its external growth, win-win growth of domestic material industry that occupies the biggest share in plant industry cost portion is extremely marginal in reality. Domestic plant material suppliers are required to increase awareness of domestic material brand by securing quality and reliability of international standard through improvement of design quality superior to that of overseas material suppliers. Improvement of design quality of plant material becomes an essential element, not an option, for survival of domestic plant industry and its suppliers. Under this background, in this study, priority and importance by each evaluation index was analyzed by materializing plant design stage through survey of experts and defining evaluation index by each design stage and based on this analysis result, evaluation index of stage-gate based decision-making process that may improve design quality of plant material was suggested. It is considered that by utilizing evaluation index of stage-gate based decision-making process being suggested in this study, effective and efficient decision-making of project decision-makers would be enabled and it would be contributory to improve design quality of plant material.