• Title/Summary/Keyword: Graduate school of education

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Impedance Estimation for Lithium Secondary Battery According to 1D Thermal Modeling (리튬 2차 전지의 1차원 열적 특성을 고려한 임피던스예측)

  • Lee, Jung-Su;Lim, Geun-Wook;Kim, Kwang-Sun;Cho, Hyun-Chan;Yoo, Sang-Gil
    • Journal of the Semiconductor & Display Technology
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    • v.7 no.2
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    • pp.13-17
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    • 2008
  • In this paper, in order to get the characteristics of the lithium secondary cell, such as charge and discharge characteristic, temperature characteristic, self-discharge characteristic and the capacity recovery rate etc, we build a thermal model that estimate the impedance of battery by experiment & simulation. In this one-dimensional model, Seven governing equations are made to solve seven variables c, $c_s,\;\Phi_1,\;\Phi_2,\;i_2$, j and T. The thermal model parameters used in this model have been adjusted according to the experimental data measured in the laboratory. The result(Voc, Impedance) of this research can be used in BMS(Battery Management System), so an efficient method of using battery is developed.

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Evaluation of Dietary Habits and Nutrition Quotient Scores according to Leftover Food during School Meal Service among Middle School Students in Gyeonggi (경기지역 중학생의 학교급식 잔반량에 따른 식생활 및 영양지수 평가)

  • Um, Mihyang;Park, Soyoung;Kye, Seunghee
    • Journal of the Korean Society of Food Culture
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    • v.36 no.2
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    • pp.198-209
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    • 2021
  • This study examined the dietary habits and nutrition quotient (NQ) scores according to leftover food during school meal services among middle school students in the Gyeonggi region. A survey on the dietary habits was conducted among 405 male and female middle school students located in Seongnam City, Gyeonggi Province. The amount of leftover food in the school meals was surveyed using the visual method through a questionnaire over two days. The survey was conducted from July 8, 2019, to July 12, 2019. After calculating the average total leftovers of each student over the two days, they were categorized into the following three groups: the top third was the large leftover group. The middle third was the medium leftover group, and the lower third was the small leftover group. The characteristics of the groups that had leftovers were analyzed. Female, normal-weight, and underweight students accounted for a greater proportion of the large leftover group than male, overweight, and obese students. The rates of selective eating and compliance with new food intake were significantly lower in the large leftover group than in the small leftover group. A comparison of the nutrition quotient for the adolescent (NQ-A) scores of each group revealed significantly lower scores of the large leftover group for all factors (balance, moderation, food diversity, practice, and environment) than the small leftover group. Therefore, there are statistically significant differences in the dietary habits, nutritional quality, and eating behaviors of middle school students that are associated with the amount of leftover food during school meals.

Effects of a Self-Development Program on Self-esteem and Communication in Middle School Students (자아성장프로그램이 중학생의 자존감과 의사소통에 미치는 효과)

  • Kim, Hee-Sook;Lim, Yun-Hee;Seo, Mi-Hui;Lee, Eun-Ju;Kim, Jin-Hwa;Cho, Eun-Hye;Ha, Tae-Hi
    • Child Health Nursing Research
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    • v.14 no.3
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    • pp.269-276
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    • 2008
  • Purpose: In this study the effects of Self-Development program on self-esteem and communication in middle school students were examined. Method: Forty-three middle school students in D City participated in a survey, which was carried out from October to November, 2007. To test the effects of the Self-Development Program, the students were divided into two groups, an experimental group (23) and a control group (20). The research design used in this study was a nonequivalent control group pre-posttest quasi-experimental research design. The research tools included a self-esteem scale and a communication scale. Chi-square test, paired t-test, and t-test were used to analyze the data with the SPSS/WIN 12.0 program. Result: Significant differences were found in self-esteem scores between the experimental group and the control group. But there were no significant differences between the two groups on communication scores. Conclusion: The results suggest that the Self-Development program is a useful nursing intervention for improving the self-esteem of middle school students.

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Evaluation of Dietary Quality and Nutritional Status based on Nutrition Quotient and Health Functional Food Intake in the Korea Elderly (노인의 건강기능식품 섭취 실태와 영양지수를 이용한 식사의 질 및 영양 평가)

  • Gham, Minju;Um, Mihyang;Kye, Seunghee
    • Journal of the Korean Society of Food Culture
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    • v.34 no.4
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    • pp.474-485
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    • 2019
  • This study aim to evaluate dietary quality and nutritional status according to the consumption of health functional food using Nutrition Quotient for Korean elderly (NQ-E) for 288 elderly people attending senior welfare centers in Gyeonggi-do. The questionnaire consisted of items about general information, health functional food, and Nutrition Quotient for Korean elderly (NQ-E). Chi-squared test, Fisher's exact tests, and Analysis of Covariance (ANCOVA) were performed using the SAS program ver. 9.4. Among the male and female subjects, the female subjects consumed more health functional food. The results of the dietary quality and nutritional status difference according to the intake of health functional food showed significant differences only in the areas of variety and abstinence among nutrition quotient factors for men, while no significant differences were observed in any of the nutrition quotient factors for women. In conclusion, focused-nutrition education program and useful guideline is needed for promoting adequate consumption of health functional foods in elderly.

A Qualitative Case Study on the Barriers Faced by Teachers inn Choosing Environmental Education as the Creative Discretionary Activity in Elementary Schools (초등학교에서 창의적 재량 활동으로 환경교육 선택할 때 교사가 경험하는 장애 요인에 관한 질적 사례연구)

  • Kwon, Hye-Seon;Yun, Sun-Jin
    • Hwankyungkyoyuk
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    • v.23 no.1
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    • pp.50-63
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    • 2010
  • This study is a qualitative case study aiming at understanding and finding out influential factors and barriers when school teachers choose Environmental Education as their Creative Discretionary Activities. To do this, this study focuses on the process of two teachers' choices of the Creative Discretionary Activities in two other elementary schools. The results of this research are follows. Two teachers' choices are affected by several influential factors, divided into external factors and internal factors. External influential factors include culture of school and education, media, chief education officers, parents and school. Internal influential factors are teachers' value and philosophy of education, teachers' experiences, teachers' capacity. These influential factors' forces aren't the same with each other. These influential factors, are influenced by educational, social, national, local, and school level indicated by Taylor et al's (1974) classification criterion. Especially, however, Korea's particular educational environment focusing on university entrance examination strongly affects teachers' choice. School factors also has a big strong effect on teachers' choice. Among others internal actors are the most serious influential factor affecting on teachers' choice.

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Factors Leading to Health Promotion Behavior among the Students in a Nursing School of a University - based on the SAT - (일부 간호 대학생들의 건강증진행위 실천에 영향을 미치는 요인 - SAT 모델을 중심으로 -)

  • Lee, In-Sook;Ham, Young-Lim;Kim, Joo-Hyung;Joe, Seun-Young
    • The Journal of Korean Academic Society of Nursing Education
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    • v.12 no.1
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    • pp.78-85
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    • 2006
  • Objectives: College students experiences more stress than when they were in high school. The students in nursing college, experience a variety of stress related to clinical practices, the examination for registered nurse license etc. The purpose of this study was to identify the factors that affect the health promotion behavior among the students in a nursing college based on SAT(Social Action Theory). Methods: The study was a cross-sectional design with a convenience sample of 427 students recruited from April to May in 2005. SAT was utilized for the theoretical framework of the study. The instruments used were Profile of Mood Stress, Life Stress Scale for college student, Social Adaptation Scale, Health Knowledge and Health Promotion Lifestyle Profile. Data were analyzed with SPSS 12.0 program. Results: The study showed that grades, moods, and satisfaction of relationship with friends, satisfaction with pocket money made up 29.0% of significant factors related to health promotion behavior among the college students in nursing. Conclusion: It suggests that the known factors need to be taken into consideration when developing the health promotion program for college students in nursing.

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Holding Power Analysis of Mulimedia Games (멀티미디어 게임의 흡인력 분석)

  • Jeong, Hye-Young;Kim, In;Cho, Yun-Gyung;Bae, Jae-Hak J.
    • Proceedings of the Korean Information Science Society Conference
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    • 2002.04b
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    • pp.556-558
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    • 2002
  • 본 논문에서는 멀티미디어 게임의 흡인요소를 분석하였다. 인지 및 감성을 고려한 흡인요소에는 22가지가 있었다. 이 흡인요소들을 몰입차원과 구현방식 그리고 자극방법 등의 각도에서 그 상관관계를 파악하였다. 그 결과 게임의 흡인요소 22가지 중에서 새로운 게임을 설계할 때 일체감. 자극성, 도박, 현장감, 환상감, 만족감, 성취감 등의 7가지 요소를 우선적으로 고려해야 함을 확인하였다.

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Effects of sleep quality and occupational stress on health-related quality of life among a university's security workers (일개 대학 경비근로자의 수면의 질과 직무스트레스가 건강관련 삶의 질에 미치는 영향)

  • Park, Gun Woo;Goh, Su-Jin;Kim, Dong Ha;Kim, Hye Lim;Park, Jin Kwan;Yu, Soo-Young;Jeong, Du Young;Chun, Jin-Hee;Hwang, Soon-Young;Cho, Sung-Il
    • Korean Journal of Health Education and Promotion
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    • v.32 no.3
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    • pp.73-83
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    • 2015
  • Objectives: The purpose of this study was to identify the effects of sleep quality and occupational stress on health-related quality of life among a university's security workers. Methods: 128 security workers voluntarily participated in the study. The survey asked demographic, health related, job related factors, the Korean Occupational Stress Scale Short Form(KOSS-SF), sleep quality questionnaire, and 12-Short Form Health Survey version 2.0(SF-12v2). The data were analyzed by using descriptive analysis, t-test, ANOVA, multiple linear regression, and multiple logistic regression. Results: The interrupted rest time was significantly negatively related to occupational stress. The occupational stress significantly affected sleep quality. The significant variable affecting Physical Component Score(PCS) and Mental Component Score(MCS) was sleep quality and occupational stress, respectively. Conclusions: HRQOL was founded to be affected by occupational stress and sleep disorder among the security workers. Based on this study, we suggest that the management of both occupational stress and sleep quality is crucial to improve the HRQOL.

Analysis of the Reduction of Energy Consumption by Teenagers and the Demand Level for Education Related to the Reduction of Energy Consumption (청소년 에너지 절약 실태 및 교육 요구도 분석)

  • Park, Yong-Ju;Joung, Soon-Hee;Shin, Min-Kyung
    • Journal of Families and Better Life
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    • v.27 no.3
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    • pp.79-91
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    • 2009
  • The purpose of this study is to understand the reduction of energy consumption and demand level for education relating to the reduction of energy consumption by middle school students. First, the perception of the reduction of energy consumption had a significant relationship with sex and grade. Second, the demand level for education relating to the reduction of energy consumption showed a significant relationship with only sex. Third, regression analysis on the influence of perception of the reduction of energy consumption showed a correlation between theperception of a reduction of energy consumption and the demand level for education relating to a reduction of energy consumption. The research suggests that students want an education that reduces energy consumption at school implemented during experience-centered and activity-centered discretionary activities, rather than duringtheory-centered curricular activities. It also suggests that overcoming limitations of space, that is, implementation of such education at various places besides school, and the application of teaching and teaming methods which use the internet and image media are more effective for education for the reduction of energy consumption.

Definition of the Diversity Education in Japan

  • YANO, Natsuki;OTA, Mamiko;HAN, Changwan
    • Proceedings of the Korea Contents Association Conference
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    • 2016.05a
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    • pp.389-390
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    • 2016
  • Since the Salamanca statement in 1994, inclusive education became the worldwide issue in the field of educational policy. Inclusive education is defined that equality and comprehensive education in the classroom to learning together regardless of whether with disability or not (Han et al, 2013). Inclusive education is the educational system and consist of the three domains; guarantee of rights, improvement in environment and reform in curriculum (Han et al, 2015). Diversity education has been positioned as an educational method in inclusive education. Diversity in classroom is very wide ranging; nationality, gender, culture, race, ethnicity, disability, age and religion. Diversity education is the educational method to providing the appropriate education for the children's diversity on the assumption that appreciate to the diversity. In recent years, the main purpose of inclusive education is to encompass children with disabilities. However, developmental disabilities that has no intellectual delay become a new challenge in education in addition to the physical and mental disability. This study aims to definition of the diversity education as the educational method in Japan.

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