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Study of hydrogenated a-SiGe cell for middle cell of Triple junction solar cell (Triple junction 태양전지의 a-SiGe middle cell에 관한 연구)

  • Park, Taejin;Baek, Seungjo;Kim, Beomjoon
    • 한국신재생에너지학회:학술대회논문집
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    • 2010.06a
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    • pp.83.1-83.1
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    • 2010
  • Hydrogenated a-SiGe middle cell for triple junction solar cell was investigated with various process parameters. a-SiGe I-layer was deposited at substrate temperature $245^{\circ}C$ and hydrogen content(R) was up to 26.7. Low optical bandgap(1.45eV) of a-SiGe cell was applied for middle cell although a-SiGe single cell efficiency with low Ge content was higher. And this cell was applied to the middle cell of a glass superstrate type a-Si/a-SiGe/uc-Si triple junction solar cell. The triple junction solar cell was resulted in the initial efficiency of about 9%, area $0.25cm^2$, under global AM 1.5 illumination.

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Fatigue, Depression and Sleep in Young adult and Middle-Aged (청ㆍ중년층의 피로, 우울, 수면에 관한 연구)

  • 김옥수;김애정;김선화;백성희;양경미
    • Journal of Korean Academy of Nursing
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    • v.33 no.5
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    • pp.618-624
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    • 2003
  • Purpose: The purpose of the study was to investigate fatigue, depression and sleep in young adult and middle-aged. Method: The convenient sample consisted of 415 subjects from 20 to 59 years old. Data were collected using a self-report questionnaire from July to October, 2001. The V AS-F and CES-D were utilized to measure the level of fatigue and depression. Sleep duration and sleep satisfaction were measured based on the subject's self-report. Result: The result of the study revealed that the level of fatigue and depression was higher among young adult than middle-aged. Considering age and gender, the level of fatigue and depression was higher among young adult women and middle-aged men. Depression and sleep satisfaction influenced on the fatigue. Conclusion: Health care providers need to concern about fatigue and depression in young adult women and middle-aged men. Especially, more concern and intervention programs are needed for young adult women and middle-aged men.

Recognition of Middle School Students about 'Problem Solving and Invention' Unit in Technology·Home Economics Subject (중학생의 기술·가정 교과 '문제 해결과 발명' 단원에 대한 인식)

  • LEE, Eun-Sang
    • Journal of Fisheries and Marine Sciences Education
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    • v.27 no.5
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    • pp.1424-1435
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    • 2015
  • The purpose of this study was to investigate the recognition about 'problem solving and invention' unit in technology and home-economics subject. The study was carried out through questionnaire survey method. The sample of this study was 397 8th middle school students. The data was collected using questionnaires and analyzed by the descriptive statistics, t-test and one-way ANOVA. The result of this study was as follows: First, middle school students presented positive preferences toward 'problem solving and invention' unit. Second, middle school students recognized the necessity of this unit. Third, the level of difficulty for this unit of students was intermediate. Fifth, middle school students recognized that learning 'problem solving and invention' unit made them have more interest than before learning it.

A Study on the Department System of Middle Schools in the Rural Area (농촌지역 중학교의 교과교실제 적용에 관한 연구)

  • Yang, Kum-Suek
    • Journal of the Korean Institute of Rural Architecture
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    • v.15 no.4
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    • pp.25-34
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    • 2013
  • The purpose of this study is to clarify the actual condition of the plan of middle schools in the rural area. Recently, many middle schools are remodeling the buildings and facilities based on the department system. This study, through analyzing on 3 remodeling cases of middle school in the rural area. This article discuses about the basic characteristics of the plan composition and the education programs of 3 middle schools. This study is showing the variation before and after remodeling and space organization types. The results of this study are summarized as follows; 1) Most of them take horizontal zoning system in the department classrooms. 2) Consideration is given to the space of homebas. 3) In the short term, if there is not enough classroom space utilization ratio should be adjusted in the classroom.

Effect of Poetrytherapy Program on Emotional Intelligence of Middle School Students (시치료 프로그램이 중학생의 정서지능에 미치는 효과)

  • Lee, Gye-Sean;Cha, Ta-Soon;Lee, Hee-Yeong
    • Journal of Fisheries and Marine Sciences Education
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    • v.22 no.3
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    • pp.420-430
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    • 2010
  • The purpose of this study was to develop poetrytherapy program and to test it's effect on emotional intelligence of middle school students. Sixty-six(male 33, female 33) middle school students participated in this study. Thirty-three students were assigned to experimental group and control group respectively. The program which is composed of 14 sessions was applied to experimental group for 16 weeks. Subjects completed Emotional Intelligence Test. Collected data were analyzed using t-test and ANCOVA. The results of statistical analyses showed that there were statistically significant differences in emotional intelligence test scores between experimental group and control group. Based upon these results, it is concluded that poetrytherapy program was effective in improving emotional intelligence of middle school students.

The Relative Effects of Human Capital and Social Capital on the Economic Well-being of the Late Middle-aged in Korea (중년기의 경제적 복지에 대한 인적자본과 사회자본의 상대적 효과)

  • Seo, Ji-Won
    • Journal of Families and Better Life
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    • v.26 no.5
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    • pp.315-332
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    • 2008
  • The purpose of this study was to investigate the relative effects of human capital and social capital on the economic well-being of late middle-aged Koreans. The data from the first wave of KLoSA (Korean Longitudinal Study of Aging) aged 50-64 were used (n=4,040). The major findings were as follows: First, human capital and social capital are both resources that can contribute to increasing the economic well-being of the middle-aged. Second, the relative contribution of human capital to the economic well-being of the middle-aged varied by the level of social capital, including formal network and informal network. Third, the relative contribution of social capital to the economic well-being of the middle-aged varied by the level of human capital, including employment type and educational attainment. Based on empirical results, the implications for social investment in human capital and social capital were provided.

Malondialdehyde Levels in Middle Ear Fluid from Patients of Otitis Media with Effusion

  • Mun, Kyo-Cheol;Kim, Deok-Jun
    • BMB Reports
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    • v.32 no.1
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    • pp.25-27
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    • 1999
  • Otitis media with effusion (OME) is an inflammatory disease of the middle ear cleft. Oxygen free radicals have been implicated in a variety of inflammatory disorders. Oxygen free radicals may also be involved in the pathogenesis of OME. To evaluate the involvement of oxygen free radicals in the pathogenesis of OME, the level of malondialdehyde, which gives an index of lipid peroxidation by oxygen free radicals, was measured by the reaction with thiobarbituric acid. Malondialdehyde level in the middle ear fluid from the OME group was higher than that in the normal control group. Malondialdehyde level in the middle ear fluid from a mucoid subgroup was higher than that in the serous subgroup. Malondialdehyde levels in the middle ear fluid from the serous subgroup was significantly correlated with symptom duration. The Pearson correlation coefficient between malondialdehyde levels in the middle ear fluid from the serous subgroup and symptom duration was 0.842 (P<0.05). These results indicate that lipid peroxidation by oxygen free radicals may be involved in the pathogenesis of human OME.

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Factors Influencing Meaning in Life among the Middle-aged (중년층의 삶의 의미 영향요인)

  • Jung, Young-Mi
    • Korean Journal of Adult Nursing
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    • v.23 no.3
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    • pp.209-220
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    • 2011
  • Purpose: This study aimed to develop a model that describes factors influencing meaning in life among the middle-aged in Korea, and to verify the appropriateness of the model. Methods: The participants were 424 middle-aged residents of Daegu city, Korea. The data were collected through a structured questionnaire from October 4 to 30, 2010 and analyzed using SPSS/WIN 18.0 and LISREL 8.30. Results: Reported life satisfaction and religion had observed to have a significant direct effect on meaning in life, and coping behavior and self-esteem exhibited significant direct and indirect effect. In addition, depression, economic status, and life stress had a significant indirect effect on meaning in life. Life satisfaction was the most influential factor, and all of these variables explained 53% of the variances in meaning in life among the middle-aged. Conclusion: The findings from this study add to the body of knowledge about the factors that influence meaning in life and need further study. The variables in this study could be used as part of the assessment of the middle-aged.

Growth Strategy of PASECO as a Global Electronic Company: Focusing on the Middle East Market

  • KIM, Byoung-Goo;LEE, Chun-Su
    • East Asian Journal of Business Economics (EAJBE)
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    • v.7 no.4
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    • pp.27-40
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    • 2019
  • Purpose - This study aims to analyze PASECO's environment and strategies during its advance into the Middle East to find out the success factors of the kerosene heater market and provide strategic implications for small and medium enterprises' growth based on these factors. Research design and methodology - This study analyzes the success factors of companies operating in the Middle East. As a case analysis study, the method of research analyzes case enterprises through existing literature, newspaper articles, and corporate interview materials. Results - PASECO's success was shown by its high technological power in kerosene heater products, understanding customers' needs, understanding the Middle East market and localization strategy. Conclusions - PASECO has been constantly developing R&D capability to secure competitive products and has released localized products to enhance the satisfaction of its customers in the Middle East and has also been successful by constantly creating new opportunities. The firm's success strategies provide implications for small and medium-sized businesses for greater growth.

A Study on the Subjectivity of the Meaning of Life for Middle-Aged Women (중년 여성의 삶의 의미에 대한 주관성 연구)

  • Kim, Boon-Han;Kim, Yoon-Sook;Choi, Jee-Eun;Jeon, Hye-Won;Jung, Yun
    • Korean Journal of Adult Nursing
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    • v.17 no.2
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    • pp.177-187
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    • 2005
  • Purpose: The purpose of the study was to investigate the meaning of the life of middle-aged women. Method: The research method employed Q-methodology. Thirty-one participants rated 30 selected Q-statements on a scale of 1~7. The collected data were analyzed using PC-QUNAL software. Result: Principal component analysis identified 4 types of the meaning of the life of middle-aged women. The categories were labeled 'May I help you?', 'Alone', 'Who am I ?', 'No regret'. Conclusion: We have found meaning of life of middle-aged women through this research. The study result could be data to perform effective nursing intervention for positive life of middle-aged women.

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