• Journal of Venture Innovation
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• v.5 no.2
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• pp.49-66
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• 2022

This study intends to examine how the perception of covid-19 risk affects consumers' consumption behavior based on previous studies in a situation where the spread of covid-19 is prolonged. This study demonstrates how consumers' perception of covid-19 risk affects online and offline consumption behavior through the perceived severity, perceived vulnerability, coping effectiveness, and self-efficacy of the revised protective motivation theory (Rogers, 1983). We want to test it through analysis. In order to achieve the purpose of this study, consumers living in Seoul and Gyeonggi Province who have purchased within the past 3 months were selected as a sample. In addition, variable data such as risk perception of covid-19, perceived severity, perceived vulnerability, coping effectiveness, self-efficacy, online purchase attitude and purchase intention, offline purchase attitude and purchase intention were collected through the questionnaire.A total of 363 copies of valid responses were tested to test the hypothesis of the relationship between variables through the covariance structure model. The analysis results of this study were first, that covid-19 risk perception had a significant positive (+) effect on perceived severity, perceived vulnerability, and coping effectiveness. Second, perceived severity and perceived vulnerability were found to have a significant positive (+) effect on offline purchasing attitude. Third, perceived severity, perceived vulnerability, coping plan effectiveness, and self-efficacy were all found to have significant positive (+) effects on online purchase attitude. Finally, it was found that offline purchase attitude and online purchase attitude had a significant positive (+) effect on offline purchase intention and online purchase intention, respectively. Also, it was found that online purchase attitude had a negative (-) effect on offline purchase intention. The results of this analysis will provide meaningful implications for the establishment of strategies for distribution channels according to the social risk of infectious diseases.

• Journal of the Korean Home Economics Association
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• v.47 no.8
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• pp.1-11
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• 2009

This study purposed to examine how school violence victims' coping behaviors are affected by locus of control and social support. Two hundred and thirty fifth and sixth graders from four elementary schools in Seoul filled out School Violence Scale reports of the Seoul Council for Safe School (2002), Attributional Style Questionnaire (Weinstein, 1980) revised by Young Sil Im(2004), Social Support Appraisal Scale (Dubow & Ulman, 1989) revised by Myung Sook Kim(1994), and Stress Coping Behaviors reports(Park & Chung, 2001). The data were analyzed with the descriptive statics and t-test. The results of this study were as follows: First, more children showed internal locus of control than external one under negative circumstances. School violence victims perceived family's support to be more important than friend's and teacher's support. Their coping behaviors were partitioned in the order of active, aggressive, passive/avoidant, and social support seeking. Second, children with internal locus of control used more passive/avoidant coping behavior than those with external one. Third, children who perceived high social support from family used more active and social support seeking coping behavior. Children who perceived low support from friends used more passive/avoidant coping behavior while those with low support from teachers used more aggressive coping behavior. In conclusion, there are differences in stress coping behaviors by victims of school violence based on their internal or external locus of control and perceived social support.

• Journal of Korean Biological Nursing Science
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• v.20 no.2
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• pp.76-83
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• 2018

Purpose: The purpose of this study was to investigate the relationship between the awareness of sexual harassment and the coping behavior of recipients of sexual harassment. This study also assesses the factors that influence the coping behavior of nursing students during clinical practice. Methods: For this descriptive study, data were collected from November 15 to December 15, 2017. Participants included 221 nursing students recruited from nursing colleges located in three different areas. Results: 22% of the participants answered that they had experienced sexual harassment. Regarding the type of attacker, the majority of attacker was patient (83.7%). The sexual harassment awareness level was $4.22{\pm}0.40$, the degree of coping for those who experienced sexual harassment was $2.99{\pm}0.38$. Among the coping behaviors, mitigation ($3.48{\pm}0.39$) was the highest. The factors influencing the coping behavior of recipients of sexual harassment were sexual harassment awareness (${\beta}=0.24$, p=.016) and satisfaction with preventive education (${\beta}=0.45$, p<.001). Conclusion: In order to make a safe clinical practice environment, it is necessary to develop a practical sexual harassment prevention program, as well as a reporting and support system for the nursing students. Such a program will help students clearly recognize the sexual harassment situation and increase their abilities to cope with sexual harassment appropriately.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2005.11a
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• pp.335-338
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• 2005

로봇 에이전트는 변화하는 환경에서 센서정보를 바탕으로 적절한 행동을 선택하며 동작하는 것이 중요하다. 행동 선택 네트워크는 이러한 환경에서 변화하는 센서정보에 따라 실시간으로 행동을 선택할 수 있다는 점에서, 장시간에 걸친 최적화보다 단시간 내 개선된 효율성에 초점을 맞추어 사용되어 왔다. 하지만 행동 선택 네트워크는 초기 문제에 의존적으로 설계되어 변화하는 환경에 유연하게 대처하지 못한다는 맹점을 가지고 있다. 본 논문에서는 행동 선택 네트워크의 연결을 LCS를 기반으로 진화 학습시켰다. LCS는 유전자 알고리즘을 통해 만들어진 규칙들을 강화학습을 통해 평가하며, 이를 통해 변화하는 환경에 적합한 규칙을 생성한다. 제안하는 모델에서는 LCS의 규칙이 센서정보를 포함한다. 진화가 진행되는 도중 이 규칙들이 모든 센서 정보를 포함하지 못하기 때문에 현재의 센서 정보를 반영하지 못하는 경우가 발생할 수 있다. 본 논문에서는 이를 해결하기 위해 센서정보 별로 개체를 따로 유지하는 방법을 제안한다. 제안하는 방법의 검증을 위해 Webots 시뮬레이터에서 케페라 로봇을 이용해 실험을 하여, 변화하는 환경에서 로봇 에이전트가 학습을 통해 올바른 행동을 선택함을 보였고, 일반LCS를 사용한 것보다 조건별 개체 유지를 통해 더 나은 결과를 보이는 것 또한 확인하였다.

• Journal of Digital Convergence
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• v.17 no.3
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• pp.353-360
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• 2019

The purpose of this study was to investigate the relationship between job stress and coping style in college students. Participants were 314 students in a college. Data were collected using a self administered questionnaire. The survey was conducted from May 02, 2018 to May 28, 2018. There were statistically significant correlations between personality stress, family environmental stress, academic stress, school environment stress and emotion - centered coping style among sub - variables of job stress, Job anxiety stress was significantly correlated with social support seeking and emotion - centered coping style. Since college students' emotional stress coping style is related to depressive emotional and physical health problems, it is necessary to provide a psychological treatment program for early detection and coping with psychological support services, and a mixed service such as education, lecture, and camp. In addition, it is thought that strategic action skill training (plan, method, and technology) is needed to change from emotion - centered coping style to problem - solving style.

• 한국HCI학회:학술대회논문집
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• 2007.02a
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• pp.150-155
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• 2007

운전자지원시스템과 같은 자동화 시스템은 필연적으로 시스템에 대한 운영자의 신뢰와 적응을 초래하는 데, 이는 결국 동시에 긍정적인 효과와 부정적인 효과를 가져온다. 적응순항제어시스템은 대표적인 운전자지원시스템으로서 앞 차량과의 안전 거리와 속도를 자동적으로 제어하여 운전자의 편의성과 안전성을 향상시킨다. 본 연구에서는 적응순항제어시스템에 대한 운전자의 신뢰와 방심 효과를 조사하였다. 차량 시뮬레이터를 이용하여 왕복 2차선과 4차선이 혼합된 자동차 전용도로의 가상 주행 환경을 구축하고, 다양한 주행 상황하에서 운전자의 조종 능력과 대처 능력을 파악하였다. 연구 결과, 적응순항제어시스템에 대한 운전자의 신뢰와 적응은 운전자의 성향에 관계없이 일관된 차간 거리 시간, 가감속값 등을 설정하도록 유도하였고, 결과적으로 안전도와 편의성을 향상시킴을 확인할 수 있었다. 그러나 맹목적인 신뢰와 적응은 돌발 상황에 대한 대처 능력의 저하, 주의 산만, 방심 등을 초래하였고, 결과적으로 안전도를 저하시킴도 확인할 수 있었다. 운전자지원시스템의 이러한 부정적인 효과를 방지하고, 보다 견실하게 운전자의 편의성과 안전도를 향상시킬 수 있는 방안이 요구된다.

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.503-504
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• 2007

배전 계통은 기본적으로 방사상 구조를 가지고 있지만 향후 분산 전원의 출현 등으로 계통 운영의 복잡성이 증대될 것이다. 따라서 계통의 재구성이나 복구와 관련된 운영 전반에 관한 판단의 정확성과 신속성을 요구하게 된다. 본 논문에서는 HMA(Hierarchical Multi Agent) 방법을 이용하여 배전 계통의 운영에 활용해 보았다. HMA 방법은 서로 다른 행동 특성을 가진 Agent들이 자신의 역할을 수행하면서 전체적인 최적해를 찾을 수 있고 적은 정보를 이용하기 때문에 사고에 대처하는 속도가 빨라질 것으로 예상된다. 본 논문에서는 배전 계통에 맞는 HMA 모델과 각 Agent들의 행동 원칙을 제안하고 활용 방안을 제시하였다.

• Proceedings of the KIEE Conference
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• 2001.07d
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• pp.2660-2662
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• 2001

Q-학습은 최근에 연구되는 강화학습으로서 환경에 대한 정의가 필요 없어 자율이동로봇의 행동학습에 적합한 방법이다. 그러나 다개체 시스템의 학습처럼 환경이 복잡해짐에 따라 개체의 입출력 변수는 늘어나게 되고 Q함수의 계산량은 기하급수적으로 증가하게 된다. 따라서 이러한 문제를 해결하기 위해 다개체 시스템의 Q-학습에 적합한 연속적인 Q-학습 알고리즘을 제안하였다. 연속적인 Q-학습 알고리즘은 개체가 가질 수 있는 모든 상태-행동 쌍을 하나의 Q함수에 표현하는 방법으로서 계산량 및 복잡성을 줄임으로써 동적으로 변하는 환경에 능동적으로 대처하도록 하였다. 제안한 연속적인 Q-학습 알고리즘을 벽으로 막힌 공간에서 두 포식자와 한 먹이로 구성되는 먹이-포식자 문제에 적용하여 먹이개체의 효율적인 회피능력을 검증하였다.

• 한국벤처창업학회:학술대회논문집
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• 2022.11a
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• pp.49-52
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• 2022

4차 산업혁명시대가 도래함에 따라 자동화, 인공지능 등의 도입으로 다수의 전통적인 일자리가 소멸되거나 변동성이 커지게 되면서 일자리 공급은 감소하고 새로운 기술과 아이디어로 재고용 또는 자기 고용 기회를 찾아야 하는 사회적 수요가 커지고 있다. 이러한 시대변화에 능동적으로 대처하고, 현재의 삶의 위기를 극복하기 위하여 직업전환을 꾀하거나 자기개발을 하기 위한 성인학습자들의 창업에 대한 관심이 증대되고 있다. 이에 따라, 본 연구를 위하여 성인학습자 207명을 대상으로 설문조사를 진행하였으며, 본 연구는 창업교육이 성인학습자의 창업의지와 창업행동에 관한 연구를 자기효능감의 매개효과를 중심으로 진행하였다.

• Journal of Families and Better Life
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• v.20 no.1
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• pp.1-16
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• 2002

The purpose of this study was to investigate the relationships of self-differentiation with conflict tactics behavior and marital adjustment among married men and women. Specifically, this study tried to examine the differences in the levels of conflict tactics behavior and of marital adjustment according to the levels of self-differentiation. The participants of the present study were 332 married men and 355 women who lived in Chonlabuk-Do province. The major results of this research were as follows. First, there was no significant difference in the level of total self-differentiation between men and women. There were significant differences in the degrees of sexually coercive conflict tactics behavior and marital adjustment between sexes. Second, results of difference analyses showed that there were significant differences in the levels of conflict tactics behaviors and of marital adjustment according to levels of self-differentiation. Finally, in the case of married men and women, the variable significantly affecting the conflict tactics behavior and the marital adjustment was the levels of self-differentiation. Based on the results as above, this research discussed the issue of the concept of self differentiation applied to Korean situation, and suggested some implications for family life education for decreasing conflict between spouses and for enhancing marital relationship.