• Title/Summary/Keyword: 세대 연구

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Computational Fluid Dynamics for Enhanced Uniformity of Mist-CVD Ga2O3 Thin Film (Ga2O3초음파분무화학기상증착 공정에서 유동해석을 이용한 균일도 향상 연구)

  • Ha, Joohwan;Lee, Hakji;Park, Sodam;Shin, Seokyoon;Byun, Changwoo
    • Journal of the Semiconductor & Display Technology
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    • v.21 no.4
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    • pp.81-85
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    • 2022
  • Mist-CVD is known to have advantages of low cost and high productivity method since the precursor solution is misting with an ultrasonic generator and reacted on the substrate under vacuum-free conditions of atmospheric pressure. However, since the deposition distribution is not uniform, various efforts have been made to derive optimal conditions by changing the angle of the substrate and the position of the outlet to improve the result of the preceding study. Therefore, in this study, a deposition distribution uniformity model was derived through the shape and position of the substrate support and the conditions of inlet flow rate using the particle tracking method of computational fluid dynamics (CFD). The results of analysis were compared with the previous studies through experiment. It was confirmed that the rate of deposition area was improved from 38.7% to 100%, and the rate of deposition uniformity was 79.07% which was higher than the predicted result of simulation. Particle tracking method can reduce trial and error in experiments and can be considered as a reliable prediction method.

Uniformity Prediction of Mist-CVD Ga2O3 Thin Film using Particle Tracking Methodology (입자추적 유동해석을 이용한 초음파분무화학기상증착 균일도 예측 연구)

  • Ha, Joohwan;Park, Sodam;Lee, Hakji;Shin, Seokyoon;Byun, Changwoo
    • Journal of the Semiconductor & Display Technology
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    • v.21 no.3
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    • pp.101-104
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    • 2022
  • Mist-CVD is known to have advantages of low cost and high productivity compared to ALD and PECVD methods. It is capable of reacting to the substrate by misting an aqueous solution using ultrasonic waves under vacuum-free conditions of atmospheric pressure. In particular, Ga2O3 is regarded as advanced power semiconductor material because of its high quality of transmittance, and excellent electrical conductivity through N-type doping. In this study, Computational Fluid Dynamics were used to predict the uniformity of the thin film on a large-area substrate. And also the deposition pattern and uniformity were analyzed using the flow velocity and particle tracking method. The uniformity was confirmed by quantifying the deposition cross section with an FIB-SEM, and the consistency of the uniformity prediction was secured through the analysis of the CFD distribution. With the analysis and experimental results, the match rate of deposition area was 80.14% and the match rate of deposition thickness was 55.32%. As the experimental and analysis results were consistent, it was confirmed that it is possible to predict the deposition thickness uniformity of Mist-CVD.

Generational Conflicts in Korea : Power, Ideological and Cultural Conflicts (한국사회의 세대갈등 : 권력.이념.문화갈등을 중심으로)

  • Park, Jae-Heung
    • Korea journal of population studies
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    • v.33 no.3
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    • pp.75-99
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    • 2010
  • This paper aims to examine the causes and features of current generational conflicts in Korea and to discuss their implications. The data utilized in the study include collective data on presidential and general elections and secondary data obtained from empirical research. The findings are as follows. First, generational power conflicts express itself by struggles among generations concerning the timing of political power transfer. An average age of assemblymen decreases consistently regardless of changes in overriding ideological atmosphere in general - conservative vs. liberal. Second, ideological conflicts among generations were highly intensified around 2002 presidential election, but gradually moderated since 2004 general election. The conflicts might be re-intensified if a set of conditions were satisfied. Third, cultural conflicts between older and younger generations were contrasted around three cultual axes: economic growth with top priority vs. consumerism, collectivism vs. individualism, and authoritarianism vs. post-authoritarianism. To ease strained relations between generations, intergenerational programs were suggested.

The Longitudinal Relation between Stressors and Depression of Men in Baby Boom Generation (베이비붐 세대 남성의 스트레스 요인과 우울의 종단적 인과관계)

  • Sung, Jun Mo
    • Korean Journal of Social Welfare
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    • v.64 no.4
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    • pp.285-310
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    • 2012
  • This study examined the causal relationship of between stressors and depression using the wave 1~4 of Korean Welfare Panel Study by social stress theory. According to the result, the level of depression and depressed group was decreased in the course of time. As a panel regression analysis, Factors affecting the reduction of depression was upward of the income hierarchy, increase the satisfaction of family and social relationships, and residential satisfaction. Based on the results, the author suggested that social work policies and intervention direction should decrease social stress factors with causality to depression of the men in baby boom generation.

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A Study on the Experiences of Picture Book Bibliotherapy, Reading Habit Formation, and Intergenerational Interactions in a Book Club Between Middle-Aged and Young People (중년과 청년이 함께하는 독서모임의 그림책 치료, 독서습관 형성 및 세대교류 경험 연구)

  • Jiyoung Kim;SooJin Yoon
    • Journal of the Korean Society for information Management
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    • v.41 no.1
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    • pp.211-240
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    • 2024
  • This study focuses on an intergenerational book club with middle-aged and young people as a follow-up study on a book club with older people and young people. The book club program was designed to help people develop a reading habit and experience picture book bibliotherapy. The researcher hosted a picture book reading group between middle-aged and young participants, had individual interviews, and conducted a qualitative study to analyze research data and present implications. For middle-aged participants, the intergenerational book club was an opportunity to understand young people and their children and learn from the young people, and for young participants, it helped them understand middle-aged people and their parents and learn from the middle-aged people, allowing them to feel a sense of connection rather than a generation gap. In addition, positive effects of picture book bibliotherapy were seen while reducing stress and learning important lessons in life. The participants received help in forming a reading habit. This paper provides constructive suggestions for book clubs where different generations interact. It is hoped that through this study, intergenerational book clubs that can be used to understand other generations will be more popular and people will be able to discover the benefits of reading books including picture books and make reading a habit.

An Exploratory Study upon The Factors for Discriminating Generations: Focusing on Welfare Attitudes Values on Social Issues (한국인의 세대 판별요인에 대한 탐색적 연구: 복지태도와 가치관을 중심으로)

  • Sin-Young Kim
    • The Journal of the Convergence on Culture Technology
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    • v.10 no.4
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    • pp.169-174
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    • 2024
  • This study purports to identify the factors that contribute to the classification of age groups or generations of Koreans. Independent variables such as respondents' attitudes toward welfare, attitudes toward equity, education level, perception of inequality in Korean society, tax awareness, and health status are included in the model that were put into the analysis with the main interest. Since this study does not construct any hypothesis prior to analysis, the nature of this study can be said exploratory. The data utilized for the analysis are from the 17th year of the Korean Welfare Panel collected in 2022, and a linear discrimination analysis technique will be used. First and foremost, a theoretical review of the generational classification will be conducted through domestic and international literature in the past. To date, there is no quantitative studies in Korea that have a significant influence on the generational classification. Therefore, in this study, a theoretical review of political tendencies and values, which are estimated to have a significant influence on the generational classification, that is, the difference between generations, will be significant. The perception and attitude toward welfare will be discussed in the review of values. Next, analysis models, analysis techniques, and variables to be used in the analysis will be introduced. After

The Story of Grandmothers' Experience Raising Children (할머니의 양육경험 이야기 : 자녀 세대와 손자녀 세대 양육을 중심으로)

  • Kim, Yoon Sook;Jun, Yeon Woo;Jo, Hea Soog
    • Korean Journal of Childcare and Education
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    • v.8 no.3
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    • pp.185-208
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    • 2012
  • The goal of this study is to take a look at grandmothers' experience raising children with a focus on the children's generation and the grandchildren's generation. To do this, we conducted in-depth interviews with three grandmothers who raised their children and their grandchildren. As a result, grandmothers' experience raising children was shown in three categories: change in the raising environment, the raising culture, and the sense of value of raising children. These results suggest that the raising experience of grandmothers who have raised children in the past and are currently raising children again are being changed by the transition in raising experience, raising culture, and sense of value of raising children.

Residential Choice and Mobility of Korean Babyboomer after Retirement (한국 베이비붐세대의 은퇴 후 주거 선택과 이동 특성)

  • Lim, Ki-Heung;Baek, Sungjoon
    • The Journal of the Korea Contents Association
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    • v.14 no.11
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    • pp.438-449
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    • 2014
  • This paper is aimed to study on residential choice after retirement. For this reason, this study is analyzed in three aspects ; the factors of residential choice, preferred house types and scales, the characterization of residential mobility. This study reached several conclusions. Firstly, Korea baby boomers are likely to select their residence with different factors after retirement, and they are likely to choose their residence in the view of comfort and convenience. Secondly, apartment resident ratio is shown to be reduced after retirement, and the preference for the country houses and town houses is shown to be increased. Thirdly, the baby boomers don't reduce their residential scale in batches, while they are to show a different appearance depending on the retention scale of housing. Fourthly, The 62.4% of Korean baby boomers is to plan move their residences after retirement, 52.3% of movers, more than half of them, is to go to the different residential area. Fifth, it is analyzed that different variables are to influence on the local and regional of residential mobility of the baby boomers in Korea.

Digital Generation's Media Use and Political Participation : Focusing on SNS and Smart Phone Use (디지털 융합 세대의 미디어 이용과 정치참여의 특징 : SNS와 스마트폰을 중심으로)

  • Lee, Young-Soo;Kim, Sung-Joong
    • Journal of Korea Entertainment Industry Association
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    • v.13 no.7
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    • pp.39-60
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    • 2019
  • The purpose of this study is to examine new types of political participation using the new media of digital convergence generation. For this purpose, groups were classified according to age and characteristics of media usage to investigate whether there are differences in media-related tendencies, SNS and characteristics of Smartphone usage political-related characteristics, and political participation by types. The results of the study is that the media usage characteristics by generation showed a difference between groups according to the high and low motivation for using media, and there was a generation differences in politics-related characteristics and types of political participation. Digital generation showed lower political involvement, political efficiency and offline political participation than Web 1.0 generation. In addition, political efficacy showed the moderating effect that had the greatest effect on political participation by types.

Applying Trends in Successful Aging Research on the Baby Boomers Generation (베이비부머 대상 연구의 성공적 노화모델 적용 경향 분석)

  • Rhee, Okjin;Park, Hyunshik
    • 한국노년학
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    • v.37 no.1
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    • pp.251-270
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    • 2017
  • The purpose of this research is to critically analysis the applying trend of the successful aging research on the baby boomers Generation. Research method is qualitative content analysis and this study was analyzed by concepts, factors, heterogeneity and variety of generation. The results of the analysis on 124 domestic articles on the journals on the successful aging from 2000 to 2016 are as follows: most of concepts in researches are about economic problems. In a research model, social environmental factors are barely considered. Heterogeneity and a few studies showed identities and varieties of generation. Based on these results, several suggestions are presented; First, consideration about the concepts of successful aging On a broad range is required. Secondly, concepts and influence factors should be clearly identified. Third, factors related to life itself in aging and macro social environment than factors of individual unit focused on economic value should be used. In addition, new age-old cultual value should be discussed to understand the Inherent traits of baby boomers. Lastly, studies to discuss varieties which are caused by age and gender of the baby boomers are needs to proceed.