• Title/Summary/Keyword: methodological study

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A Methodological Study of the Wear-Resistant Property Improvement on the Thermal Spray Coating for Capstan (Capstan용 용사코팅의 내마모 특성 향상 방안)

  • 어순철
    • Journal of Powder Materials
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    • v.7 no.2
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    • pp.63-70
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    • 2000
  • Thermal spray coating process has proven to be effective at producing hard, dense, wear resistance coatings on the relatively mild substrates. Among several spraying techniques, HVOF (High Velocity Oxygen Fuel) and plasma coating processes, which are preferentially used for the wear resistance application such as capstans, have been applied in this study. The effects of pre-treatment, it-process and post-treatment parameters on the wear and mechanical properties of WC+12%Co, Cr3C2 and Al2O3 powder coatings have been investigated and correlated with the microstructures. The results indicated that the carbide coating was more preferable to the oxide coatings and the post-treatments consisting of vacuum annealing and sealing on carbide coatings led to significant improvements in wear resistance, adhesive strength and coating phase stabilization over the other processing techniques in this application.

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A Review of Studies on Family Adaptability and Cohesion Evaluation Scales(FACES) (가족적응력.응집성 평가척도(FACES)에 관한연구고찰)

  • 최윤실
    • Journal of Families and Better Life
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    • v.14 no.1
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    • pp.131-146
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    • 1996
  • The purpose of this study was to review the previous studies that have dealt with and used Family Adaptibility and Cohesion Evaluation Scales(FACES) considered as an effective instrument for measuring family functioning in order to clarify the theoretical meaning the practical applicability the limitation and the problems of this instrument. FACES has considerably contributed in measuring family dynamics in research and clinical fields and been paid attention to by researchers and clinicians since 1979 However the instrument has been also pointed out its limitation due to the conceptual and methodological problems. This study reviews these problems and then presents some implications to help to improve these problems and to explore the application of this instrument as a measure of family functioning.

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A Study on the Measure of Familism : Familism Scale (가족주의가치 측정을 위한 기초연구 - 가족주의척도 제작을 중심으로 -)

  • 옥선화
    • Journal of the Korean Home Economics Association
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    • v.24 no.3
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    • pp.143-153
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    • 1986
  • This study is intended to develop a scale to measure familism. Construction of this scale is based on a sample of 448 married males and females living in Seoul. This scale to measure familism is developed by employing a type of item analysis method called correlation analysis. 13 items are selected by correlation analysis, and these are found statistically significant even by analysis based on the criterion of internal consistency. Validity of this scale is evidenced by logical validation, jury opinion and independent criteria. Reliability estimate assessed by Cronbach's alpha coefficients is .759. This scale comprises the following 4 aspects of familism: 1) Support for filial piety and ancestor worship. 2) Integration of individual activities into family ones for achievement of family objectives. 3) Obligation to support individual family members and give them financial assistance when needed, on the assumption that properties such as land, money, etc. belong to family. 4) Mutual aid in psychological and social aspects between parents and married children, and married children and their married siblings. It is concluded that this familism scale represents an improvement on other measure of familism, but that a number of methodological issues remain to be further studied.

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A Validation Study on the Children's Perception of Interparental Conflict Scale (자녀가 지각한 부부갈등척도(CPIC)의 타당화 연구)

  • Kwon, Young Ock;Lee, Chung Duk
    • Korean Journal of Child Studies
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    • v.18 no.1
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    • pp.65-80
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    • 1997
  • The purpose of this study was to validate the Children's Perception of Interparental Conflict Scale(CPIC) with Korean children. The subjects were 323 sixth graders from three elementary schools in Seoul. The CPIC Scale (Grych, Seid. & Fincham, 1992). the Children's Depression Inventory(CDI; Kovacs, 1981) and the Revised Children's Manifest Anxiety Scale( RCMAS: Reynolds & Richmond, 1978) were used as methodological instruments. The methods for data analyses were Pearson's r. factor analysis, and Cronbach's. Eight of the nine initial scales showed acceptable levels of internal consistency. The correlations among the CPIC subscales were assessed and the data were examined with factor analysis. Three factors were extracted and labeled 'Conflict Properties, Self-Blame,' and 'Threat', respectively. The validity of the CPIC subscales was assessed by examining correlations between the CPIC subscales and the CDI and the RCMAS, and the coefficients were significant. The three scales demonstrated good internal consistency (Cronbach's=.86, .81, .79).

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Perception of Undergraduate Nursing Students toward Happiness: A Q-Methodological Approach (간호대학생의 행복에 관한 인식- Q 방법론적 접근 -)

  • Jo, Kae-Hwa
    • The Journal of Korean Academic Society of Nursing Education
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    • v.17 no.2
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    • pp.178-189
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    • 2011
  • Purpose: The purpose of this study was to analyze types of undergraduate nursing student's perception toward happiness. Method: The Q-methodology, which provides a method of analyzing the subjectivity of each item, was used. The 34 selected Q-statements from each of 41 subjects were classified into a shape of normal distribution using a 9 point scale. The collected data was analyzed using a QUANL PC program. Result: Four types of perception of happiness in Korean undergraduate nursing students were identified. Type I is a family support vs. emotion type, Type II is a self satisfaction vs. perception type, Type III is a relation oriented vs. action type, and Type IV is a self regulation vs. belief type. Conclusion: It can be concluded that obtaining happiness by pursuing a satisfactory life through creation of values can play an important role in happiness. Therefore, the results of this study suggest that the concept of happiness might be included in nursing curriculum.

컴퓨터지원협동학습(CSCL) 환경 하에서 사회연결망분석(SNA)을 이용한 학습자 상호작용연구

  • 정남호
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 2004.11a
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    • pp.361-368
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    • 2004
  • The purpose of the study was to explore the potential of the Social Network Analysis as an analytical tool for scientific investigation of learner-learner, or learner-tutor interaction within an Computer Supported Corporative Learning (CSCL) environment. Theoretical and methodological implication of the Social Network Analysis had been discussed. Following theoretical analysis, an exploratory empirical study was conducted to test statistical correlation between traditional performance measures such as achievement and team contribution index, and the centrality measure, one of the many quantitative measures the Social Network Analysis provides. Results indicate the centrality measure was correlated with the higher order learning performance and the peer-evaluated contribution indices. An interpretation of the results and their implication to instructional design theory and practices were provided along with some suggestions for future research.

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Wealth Management Framework Experienced in Korean Financial Enterprises

  • Kim, Hak-Min
    • International Commerce and Information Review
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    • v.8 no.1
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    • pp.417-435
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    • 2006
  • A Systematic Wealth Management Framework (SWMF) was developed as a private banking management tool to enable more integrative personal finance management of personal wealth. It is a reference model that provides an unified framework for development, operation, and management and makes provision for personal financial services in today's complex financial environment. This study suggested some practical results from banks and insurance companies that have established SWMF as the differentiation business strategy for wealthy customers. The focus of this manuscript is on capturing the methodological approach most financial institutions in Korea adopted to execute new e-finance planning and implementation based on the SWMF. The alignment between the wealth management business goals and information system architecture at an organization constitutes the main theoretical basis of the study. Relevant discussions are made on the wealth management framework as a general business model for financial industry, on the functional relationship between new information systems and business organizations. Finally, lessons learned from the SWMF implementation are discussed.

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parenting Stress and Social Support of nfant's Mothers (유아기 자녀를 둔 어머니의 양육스트레스와 사회적 지지)

  • 최진아
    • Journal of Families and Better Life
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    • v.16 no.1
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    • pp.51-62
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    • 1998
  • The purposes of this study were to investigate the difference of maternal parenting stress and social support according to infant's age and to examine the effect of social support and infant's age on parenting stress. The subjects were 145 mothers who have 2-5 olds children. The questionnaire was used as a methodological instrument and the statistics used for data analysis were frequency percentile mean t-test Pearson's r-coefficient and multiple regression. Results of this study indicate that mothers with 2-3 olds child perceived more child's demandingness and mothers with 4-5 olds child perceived more mother's competence. Mothers with 2-3 olds child perceived more social support than mothers with 4-5 olds child. Husbahd's support and infant's age were found to be important variables in predicting parenting stress.

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Study on Learning Model for Improving Computational Thinking of Early Childhood Education in Domestic Setting

  • Ha, Yan
    • Journal of the Korea Society of Computer and Information
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    • v.23 no.9
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    • pp.133-139
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    • 2018
  • This paper draws attention on the importance of computational thinking, which is being utilized more and more in recent educational environment. Also, it suggests a teaching and learning model for improving computational thinking within early childhood education. With the advent of the Fourth Industrial Revolution, this era demands people to possess integrative thinking and problem-solving skills. As a result, education on computational thinking is done beginning from the early childhood, enabling children to take the leading part in the future digital generation. However, despite the appearance of many education services and products regarding computational thinking, the field lacks evaluation and academic verification. Thus, this study will complement the methodological aspect of computational thinking.

Absorptive Capacity Effects of Foreign Direct Investment in Selected Asian Economies

  • ROY, Samrat
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.11
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    • pp.31-39
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    • 2021
  • This study empirically examines the proposition that the domestic fundamentals of a nation can emerge as absorptive capacity factors to reap the benefits of inward FDI. The study is contextualized in Asia, set from1982 to 2017, and data is grouped into low-income and lower-middle-income economies, in comparison to high-income and upper-middle-income economies, catering to different geographical regions within Asia. The investigation is based on a series of absorptive capacity factors such as infrastructure, human capital, domestic credit, and health indicator. The methodological analysis is premised on dynamic panel structure and employs the Generalized Method of Moments (GMM) estimation technique. The empirical findings suggest that that the infrastructure variable appears to be the major absorptive capacity factor for both groups of countries. The health indicator, on the other hand, can help reap the benefits of inward FDI, but only if the threshold level is met. The selected economies must achieve this threshold level to reap the benefits of FDI. To absorb the benefits of inward FDI, countries must be proactive in providing sound infrastructure and implementing proper healthcare measures.