• The Journal of Korean Association of Computer Education
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• v.19 no.1
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• pp.87-100
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• 2016

This study has examined the structural relationship among factors related to the effects of flipped learning using the structural equation modeling. Two hundred thirty-six middle school and high school students were participated in this study. This study's results are as follows. First, looking through how much the flipped learning variables affect achievement, motivation affects achievement the most, and then interaction, participation come next. Second, looking through how much the flipped learning variables affect personality, interaction affect personality the most, and then teaching attitudes come next. Third, as a result of verifying the research model, the hypothetical model indicating relationship among motivation, participation, teaching attitudes, interaction and achievement, personality is valid.

• Journal of Families and Better Life
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• v.20 no.1
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• pp.115-124
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• 2002

The purpose of this study is to examine the social competence of children with reference to day care center's structural, process variables and demographic variables. The subjects were 156 children who attend day care center, aged from 3 to 5 years and 9 teachers in Seoul or the province of KyungkiDo. Data were gathered via the structured Questionnaires distributed to the teachers to rate children's social competence and their own job satisfaction. And two observers rated teacher-child interaction in day care center The major findings are as follows The variables predicting children's social competence were child's sex, age, period of attendance in day care center, teacher's job satisfaction, and group size. Especially this study suggests that teachers who are highly satisfied with their job and small group size influence children's social competence positively.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 1991.04a
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• pp.159-161
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• 1991

보는 토목, 건설, 기계, 선박, 항공등 각종 구조공학 관련분야에서 가장 기본이 되는 구조단위 중에 하나이다. 구조물에서 단면을 변단면으로 하는 경우에는 재료가 절약되는 경제적 잇점이 있을 뿐만 아니라 미적 감각등 여러가지 이유로 변단면을 많이 사용하는 추세이다. 이 논문은 변단면 보의 자유진동을 해석한 결과를 통계적으로 처리하여 변단면 보의 고유진동수를 산정할 수 있는 고유진동수 방정식을 추정하는데 연구목적이 있다.

• Journal of the Korean Society of Clothing and Textiles
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• v.25 no.9
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• pp.1614-1620
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• 2001

본 연구의 목적은 의류학 관련 전공에 대한 학생들의 전공 만족도에 영향을 주는 결정변인을 조사하는데 있다. 조사대상은 의류학 관련학과를 전공으로 하는 국내 2년제 및 4년제 10개 대학의 재학생으로, 총 690부의 설문자료가 최종 통계분석에 사용되었다. 분석은 Lisrel을 이용하여, 학생들의 전공 만족도의 결정 변인과 구조적 모형을 조사하였다. 그 결과, 학문적 경쟁력과 전공에 대 한 적성 및 흥미가 가장 중요한 전공 만족도의 결정 변인으로 밝혀졌으며, 기타 만족도 변인인 시설 및 장비, 취업, 학생활동 관여도, 사회적 유대감등은 전공 만족도에 직접 영향을 미치는 것이 아니라, 학교 만족도를 통해 간접적인 영향을 미치는 것으로 나타났다.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.7 no.2
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• pp.233-246
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• 1996

There have been great deal of studies on adult stress but comprehensive studies on adolescent stress are not sufficient. Because adolescents have different developmental tasks from adult's, and because they spend most of their time in a structured environment such as school, the research on adolescent stress is necessary. So, this study empirically investigated the types of stress and coping which students experience and their coping mechanisms in a stressful situation. In this study, perceived social support was considered as stuructural variable, and cognitive appraisal as a process variable, while existing researches tried to explain the coping mechanism only from the viewpoint of structure, or hypothesized the structure variable in the process term. The relation ships between cognitive appraisal and perceived social support on coping behavior were evaluated. Survey on 519 high school students in Seoul showed that cogitive appraisal was a structural variable which varied across the types of stress, and that perceived social support was a structure variable which was independent of the type of stress. Cognitive appraisal was related more to the qualitative process of stress appraisal than coping behavior, and perceived social support was an important structure which influenced both the appraisal process and coping behavior.

• Journal of Digital Convergence
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• v.14 no.3
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• pp.361-372
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• 2016

The purpose of this study was to examine the mediating effect of moral elevation and self control on the relationship between moral identity, character strengths, family strengths, and altruistic behavior in the times of convergence. The collected data were analyzed by SEM. The results of this study were as follows: First, moral self has indirect effect on altruistic behavior through moral elevation and self control in turn, and character strengths, have indirect effect on altruistic behavior through moral elevation and self control and moral elevation, self control in turn, and family strengths have indirect effect on altruistic behavior through self control. Second, it was found that there was a significant gender difference in the structural weights of character strengths and moral elevation.

• Journal of the Korean Geotechnical Society
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• v.25 no.4
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• pp.69-75
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• 2009

The load distribution and deformation of pile-bent structures are investigated using a numerical study. A numerical analysis that takes into account the effects of varying cross-sectional area was performed for different pier diameters, loading steps, and soil conditions. Through the comparison study, it is shown that the location of maximum bending moment is almost the same per each loading step, regardless of varying cross-sections. However, the member force (i.e., stress of pile material) has the largest value at the ground surface when the cross-section is changed. Based on the results obtained, it is found that the location of maximum member force influences highly the behavior of pile-bent structure with varying cross-sections for repair works.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06a
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• pp.324-327
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• 2011

스마트폰과 무선인터넷 상에서 멀티미디어 사용이 일반화되면서, 스마트폰 환경에서 멀티미디어 관련 취약점을 악용한 공격이 급증하고 있다. 이러한 취약점을 악용한 공격을 예방하기 위해, 퍼징(Fuzzing)을 적용하여 취약점을 미리 발견하려는 연구들이 진행되고 있다. 본 논문에서는 '임의 생성 기반 퍼징'(단순랜덤, simple random) 방법과 '구조적 변이 기반 퍼징'(구조적 변이, structured mutation) 방법을, 안드로이드 스마트폰용 멀티미디어 플레이어에 적용하는 실험을 수행하였다. 또한 PC 환경의 멀티미디어 플레이어들에서 발생했던 기존 취약점을 악용한 공격파일(exploit)을 안드로이드 스마트폰 환경의 멀티미디어 플레이어들에 적용하고 그 결과를 분석하였다. 실험 결과, PC 환경에서는 구조적 변이 퍼징이 효과적인데 비해, 안드로이드 스마트폰 환경에서는 단순 랜덤 퍼징이 효과적임을 알 수 있었다.

• Journal of the Korea institute for structural maintenance and inspection
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• v.19 no.2
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• pp.40-51
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• 2015

In reinforced concrete structure, rebar connection method should be considered because of its structural role to resist the tensile stress and its structural load transmission with concrete in the concrete structure. Lapped splice and mechanical sleeve type connector have been traditionally used to connect rebar in the concrete structures. In this study, to examine the mechanical and failure behaviors of rebar bar connected by taper type coupler in the concrete member depending on connection type and condition, tensile tests of steel rebar with taper type coupler and flexible loading tests of concrete beams were conducted. Its tensile strength and flexible strength of the rebar connected by taper type coupler were compared and evaluated by mechanical behaviors of rebar. From this study, steel rebar connected by taper type coupler showed it has similar mechanical performance comparing with unconnected rebar, thus taper type coupler can be used in the rebar fabrication of reinforced concrete structure.

• Journal of Convergence for Information Technology
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• v.10 no.1
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• pp.120-127
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• 2020

The purpose of this study was to examine related variables that improve learning outcomes in collaborative learning. Based on literature reviews, emotional intelligence was used as a variable of personal character, communication ability and collective intelligence were used as variables in learning process, and learning satisfaction, and persistence were used as variables of learning outcomes. Data were collected from 3,475 students at A university, and were analyzed using structural equation modeling. The results of this study are as follows: First, it turned out that emotional intelligence had a significant and positive impact on communication ability, collective intelligence, learning satisfaction, and persistence. Second, communication ability influenced collective intelligence and persistence positively. Third, collective intelligence influenced learning satisfaction and persistence positively. Fourth, learning satisfaction had a significant and positive impact on persistence. These findings offer basic data for collaborative learning by revealing the structural relationships among related variables that improve learning outcomes in collaborative learning of college students.