• Geomechanics and Engineering
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• 제35권1호
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• pp.81-93
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• 2023

Due to the unclear mechanism of the influence of temperature on the resonance problem of doubly curved shells, this article aims to explore this issue. When the ambient temperature rises, the composite structure will expand. If the thermal effects are considered, the resonance response will become more complex. In the design of structure, thermal effect is inevitable. Therefore, it is of significance to study the resonant behavior of doubly curved shell structures in thermal environment. In view of this, this paper extends the previous work (She and Ding 2023) to the case of the nonlinear principal resonance behavior of graphene platelet reinforced metal foams (GPLRMFs) doubly curved shells in thermal environment. The effect of uniform temperature field is taken into consideration in the constitutive equation, and the nonlinear motion control equation considering temperature effect is derived. The modified Lindstedt Poincare (MLP) method is used to obtain the resonance response of doubly curved shells. Finally, we study the effects of temperature changes, shell types, material parameters, initial geometric imperfection and prestress on the forced vibration behaviors. It can be found that, as the temperature goes up, the resonance position can be advanced.

• 대한영양사협회학술지
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• 제30권1호
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• pp.29-40
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• 2024

Coronavirus disease-2019 (COVID-19) has led to a decline in restaurant visits, which in turn has changed the decision-making process of consumers. This study aimed to investigate the factors influencing visit intention during the COVID-19 endemic by employing the expanded theory of planned behavior. A total of 291 samples were collected through an online survey for the analysis. Confirmatory factor analysis, correlation analysis, and structural equation path analysis were performed on the collected data using the Analysis of Moment Structures (AMOS) statistical program. The findings of the study revealed the positive effects of attitude and perceived behavioral control and the negative effects of subjective norms on desire. Second, desire played a mediating role between antecedent variables (attitude, subjective norm, perceived behavioral control) and the visit intention. These findings are meaningful in that they expand the theory of planned behavior during the COVID-19 endemic based on factors that affect visit intention.

• 지역사회간호학회지
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• 제13권2호
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• pp.239-248
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• 2002

Objectives: The purpose of this study was to evaluate the effects of assertiveness training on assertiveness behavior, problem solving ability, and interpersonal relationships of nursing college students. Methods: A nonequivalent pre- and post-test experimental design was used. This study included 15 subjects in the experimental group, and 15 subjects in the control group, who were sophomore nursing students recruited from Gachon Nursing School located in Inchon City. The experimental group received 8 series of a ready planned and reorganized assertiveness training course, while the control group did not receive any training. The 120 minute training session was held on a weekly basis. The Maan-Whitney U Test was done to identify the changes in scores of assertiveness behavior, problem solving ability, and interpersonal relationships between the experimental and the control groups, after the assertiveness training. The data were collected before and after each part of the assertiveness training. The data collection period was from May 7 to July 10, 2001. Results: 1) The assertiveness behavior scores of the nursing students who participated in the assertiveness training were higher than those of the nursing students who did not participate in the assertiveness training. 2) The self problem solving evaluation scores of the nursing students who received assertiveness training were higher than those of the nursing students who did not receive the training. 3) The interpersonal relationship scores of the nursing students who participated in the assertiveness training were higher than those of the nursing students who did not participate in the assertiveness training. Conclusion: The study results showed that the assertiveness training was effective in promoting assertiveness behavior, problem solving ability, and changes in interpersonal relationships in nursing college students. It is suggested that well designed strategies are needed in the further studies in order to expand and apply the assertiveness training to other nursing student and nurse cohorts.

• 한국콘텐츠학회논문지
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• 제17권11호
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• pp.110-122
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• 2017

본 연구는 갱년기 중년여성의 우울감 경험과 자살행동과의 관계와 이 두변수간의 관계에서 건강관련 삶의 질의 매개효과 및 소득의 조절효과를 검증하고, 이를 토대로 우리나라 중년여성들의 정신건강증진 방안을 모색하는데 목적이 있다. 분석 대상은 국민건강영양조사 제6기 3차년도(2015년) 자료 중 만 40세에서 60세까지 중년여성 1,182명이다. 분석결과, 첫째, 갱년기 중년여성의 우울감 경험은 자살행동과 유의미한 관계가 있는 것으로 나타났다. 둘째, 우울감 경험과 자살행동의 관계에서 건강관련 삶의 질은 부분적인 매개효과가 있는 것으로 나타났다. 셋째, 소득은 우울감 경험과 자살행동의 관계를 조절하는 효과가 있는 것으로 나타났으며, 조절효과는 평균소득 이하의 저소득집단에서 나타났다. 연구결과들을 토대로 갱년기 중년여성의 자살예방 정책마련 필요, 건강관련 삶의 질의 수준 향상 프로그램을 통한 개입의 필요 및 저소득층의 정신건강을 위한 정책지원이 강화될 필요가 있음을 제언하였다.

• 디지털융복합연구
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• 제15권11호
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• pp.155-165
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• 2017

본 연구는 개인의 역할 외 행동을 보다 구체적으로 살펴보기 위해, 조직시민행동을 조직 및 개인의 두 가지 차원으로 구분하였다. 또한, 이를 이끌어 낼 수 있는 투입요인으로 임파워링 리더십을 선정하고, 신뢰의 매개역할을 살펴보았다. 이를 밝히기 위해, 대구 경북의 제조업 종사자를 중심으로 설문조사를 수행하였고, 구조방정식을 통해 가설을 검증하였다. 연구 결과, 임파워링 리더십은 개인 지향 및 조직지향 조직시민행동에 유의한 정의 영향을 미치는 것으로 나타났다. 또한 신뢰는 임파워링 리더십과 개인 및 조직 지향 조직시민행동의 관계를 부분매개 하는 것으로 나타났다. 이러한 연구결과는 조직 내 조직시민행동을 유발할 수 있는 구체적인 실행 지침이 될 것이며, 나아가 조직시민행동의 연구의 영역을 확장시킬 것이다.

• 디지털융복합연구
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• 제18권5호
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• pp.145-155
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• 2020

본 연구의 목적은 기업의 수명주기에 따른 경영전략과 원가행태의 관계를 살펴보는 것이다. 본 연구를 수행하기 위해 먼저, 2000년부터 2019년 사이에 국내 상장기업을 대상으로 경영전략과 원가행태의 관계를 실증분석 하고, 기업수명주기 단계별로 경영전략이 기업의 원가행태에 미치는 영향을 분석하였다. 구체적으로, 연속적 재무지표를 이용한 경영전략지수를 산출하여 선도형(Prospector) 또는 방어형(Defender) 기업에 가까운 기업으로 구분하고 기업의 현금흐름를 토대로 기업수명주기 단계를 구분하였다. 분석 결과, 선도형 전략에 가까운 기업일수록 원가 비대칭성이 심화되는 것으로 나타났으며, 기업수명주기 단계 중 도입기에 그러한 관계가 가장 강하게 나타남을 확인하였다. 본 연구는 기업의 경영전략과 원가전략을 기업수명주기 단계별로 살펴봄으로써 보다 포괄적인 분석을 수행하였으며, 재무적 지표를 활용하여 경영전략을 구분함으로써 재무정보의 적용 사례를 확장하였다는 것에 의미가 있다.

• 한국치위생학회지
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• 제21권3호
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• pp.235-243
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• 2021

Objectives: This study aimed to examine the effect of the Oral Health Education Program (OHEP) on the change in the children's brushing behavior and reduction in the dental plaque index (PI) and to identify changes in their parents' perception of oral health. Methods: The OHEP was applied 44 children recruited from two childcare centers. We conducted a self-reported survey of the parents at baseline and evaluated the oral conditions of the children at baseline and after 5 weeks. Their brushing behavior was assessed once a week during the OHEP intervention period and daily at home thereafter. We measured the PI after a 12-week follow-up and performed repeated measures analysis of varience. Results: The average PI score of children significantly decreased at week 5 as compared to the baseline (1.90±0.53, p<0.001), despite a substantial increase in week 12 (2.67±0.08, p<0.001). OHEP was effective in reducing the PI score and modifying their brushing behavior. Conclusions: OHEP effectively modified the brushing the behavior of the children. Therefore, it is necessary to develop and expand a systematic oral health education program to promote self-management of oral health in children.

• 대한간호학회지
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• 제44권3호
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• pp.248-258
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• 2014

Purpose: This study was done to develop a reproductive health program to improve reproductive health of women immigrants. Methods: The participants in the study were 58 immigrant women who lived in Vietnam, China, Philippines, or Cambodia before marriage. They were assigned to the experiment group (n=29) or the control group (n=29). The reproductive health program for this study consisted of reproductive health education, health counseling, phone monitoring, and emotional support based on Cox (1982)'s Interaction Model of Client Health Behavior and was implemented for four weeks. Results: There were significant differences in reproductive health knowledge (t=9.78, p<.001), reproductive health attitude (t=6.59, p<.001), and reproductive health behavior (t=5.11, p<.001) within and between groups after the reproductive health program. But there were no significant differences in clinical indicators between the two groups. Conclusion: The results of this study indicate the that reproductive health program for the women immigrants is effective in terms of reproductive health knowledge, reproductive health attitude and reproductive health behaviors. Therefore, nurses in public and private facilities, such as multicultural centers and public health centers in each community, should develop strategies to expand and provide reproductive health programs for women immigrants.

• 한국의류학회지
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• 제30권9_10호
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• pp.1413-1422
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• 2006

Technologies such as television shopping channels and the internet expand consumers' impulse purchasing opportunities. The interest in national differences of consumer behavior was growing and highlighted the importance of understanding the national context of consumer behavior in an increasing globalized marketplace. The purposes of this study were to examine the effects of fashion involvement and hedonic consumption on impulse buying for Korean and American young consumers, and to compare the differences between two groups. A questionnaire was developed from literatures reviewed. Data were obtained from students attending universities in Korea(N=413) and the U.S.(N=290). Using structural equation modeling, the results indicated that the proposed model of this study was appropriate to explain the effects of fashion involvement and hedonic consumption on impulse buying for Korean and American young consumers. The model showed that fashion involvement and hedonic consumption played important roles in triggering impulse buying for two groups. In addition, American consumers were more likely to influence fashion involvement and hedonic consumption on impulse buying than Korean consumers. The results provided some insights into globalized retail marketing theory supporting the national aspects of impulse buying. Future research and managerial implications are addressed.

• Journal of Information Technology Applications and Management
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• 제22권2호
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• pp.19-41
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• 2015

Many studies have focused on the influences and outcomes of online game addiction. However, few studies have investigated how the online game addiction prevention behavior differs depending on online game user. In order to fill this gap, this study attempts to classify online game users based on risk perception attitude (RPA) framework. More specifically, this research tries to show online game user can be classified into four groups based on perceived risk of online game addiction and efficacy beliefs of online game addiction protection, and to identify how the groups differ in terms of motivation, information seeking, and behaviors for online game addiction prevention. For this purpose, analysis on survey data from 240 Korean college students who use online game reveals that the users can be classified into responsive, avoidance, proactive, indifference groups. Furthermore, there are differences between groups in terms of motivation, information seeking, and behaviors for online game addiction prevention. This study contributes to expand existing literature by providing tailored guidelines for implementation of online game addiction prevention strategies and policy.