• Journal of the Korean Society of Food Culture
• /
• v.24 no.5
• /
• pp.518-524
• /
• 2009

This study was conducted to investigate the effects of fast food customer's perceived risks on risk reduction behavior, attitude and purchase intention. A total of 268 usable surveys were collected using a stratified random sampling method. Descriptive analysis and factor analysis was then conducted using SPSS 12.0, and a Cronbach's $\alpha$ was generated to estimate the internal consistency of the survey items. Multiple regression analysis was used to evaluate the relationships among variables. The results indicated that fast food safety and monetary risks had a negative effect on customer feelings and satisfaction with fast food, which had a positive effect on buying purpose and recommendation purpose. Conversely, obesity and monetary risks only had a negative effect on buying purpose. An improved menu more effectively reduced the risk perceived by the fast-food customers than an improved image.

• Journal of Digital Convergence
• /
• v.20 no.3
• /
• pp.459-468
• /
• 2022

The outbreak of COVID-19 is facing a global crisis. Therefore, this study comprehensively reviews the risk perception, tourism attitude, and tourism intention of potential tourists in the COVID-19 situation. As a research finding, three factors were derived for tourism risk perception: physical risk, social risk, and performance risk. It is verified that social risk to be a significant factors affecting tourism attitude. Also, it proved that social risk, performance risk to be important factors affecting tourism intention. A t-test was conducted to examine the implications of demographic characteristics(gender, age, job) in the study. As a result of the analysis, it was found that potential tourists in their 20's age perceived social risk as more important than other age groups. In addition, potential tourists in their 20's showed more positive tourism attitudes than other age groups. As a result of analyzing differences according to job, it was found that the student group had higher social risk, tourism attitude, and tourism intention than other occupational groups. Based on the research results, it can help derive strategies to reduce tourists' perception of risk in special situations such as COVID-19 and contribute to academia.

• Korea journal of population studies
• /
• v.33 no.2
• /
• pp.61-84
• /
• 2010

The goals of the study were to examine if and how exposure to suicidal factors in social relationships affects suicidal ideation and behaviors and also analyze how family factors are associated with suicidal ideation and behavior. Data drawn from Korean General Social Survey(KGSS) collected in 2009 were analyzed. The findings show that exposure to the suicidal factors have statistically significant effects on suicidal ideation and behaviors. In the findings, respondents who have experiences of which socially close persons have suicidal ideation or completed suicide are more likely to have suicidal ideation and suicidal plan even in the models for which demographic factors and depressive symptoms are controlled. Also, family factors have significant effects on suicidal ideation and suicidal behaviors. Family stress increases suicidal ideation and behaviors whereas expectation on family support reduces the likelihood of having suicidal ideation and behaviors. This study shows that there might be possibility of behavioral contagion in terms of suicide through social connections and family has both positive and negative aspects on suicidal ideation and behaviors. Our study suggests policy implications for people who were exposure to suicide.

• The Journal of the Korea Contents Association
• /
• v.16 no.8
• /
• pp.743-755
• /
• 2016

The objectives of this research is to examine: 1) how the rates of adolescents' BMI change over time in terms of the state level; and 2) development difference in the state level of BMI in terms of children's obesogenic behaviors from 1999 to 2011. Data were drawn from the 1999-2011 Youth Risk Behavior Survey in the United States (N=260, 293, grades 9-12, and 27 states). Ordinary least squares regression and hierarchical linear modeling were utilized to capture a longitudinal time effect of school-aged adolescents' obesity rates across the states, controlling for demographics and nutrition- and physical activity-related behaviors. The state's level of children's BMI percentile was significantly associated with longitudinal time. Longitudinal time effect across the states appears to play an important factor associated with children's decrease of BMI percentile. Therefore the states' implementation of physical activity and nutritional policies seems to be effective for preventing and reducing childhood obesity during last decade. More attention should focus on enforcing the policy and overcoming current barriers in order to minimize children's obesogenic factor.

• Journal of the Society of Disaster Information
• /
• v.19 no.2
• /
• pp.421-431
• /
• 2023

Purpose: The purpose of this study is to analyze the safety and disaster prevention effects of the Smart Safety System used to prevent safety accidents in construction machinery and demonstrate its safety. Method: Among construction machines, the behavioral patterns of workers according to the presence or absence of a smart safety system were analyzed for excavators with high risk and frequent accidents. Result: When the smart safety system was installed in the construction machine, the safety of workers from accidents caused by constriction and collision with the construction machine was secured. Conclusion: It is judged that the smart safety system installed in construction machinery can increase the effectiveness of disaster reduction and major disaster prevention related to construction machinery.

• Proceedings of the Korea Water Resources Association Conference
• /
• 2007.05a
• /
• pp.527-531
• /
• 2007

하천내에서 작은 물고기의 국지적인 회유 또는 이동 습성은 먹이를 구하고, 산란 및 성장과 집단에서 분산하고, 위험으로부터 도피하는 것에 밀접한 연관이 있다. 하천의 합류부와 연결부에 제방(levee), 도로(road) 등이 설치되는 경우 일반적으로 암거형태의 인공수로로 상 하류를 연결되는데, 암거내 수리특성상 평수시 저유량, 고유속, 저수심의 수리특성을 보인다. 이러한 수리특성은 물고기가 이동하는데 장애(barrier)가 되어 생태적으로 하천내 종다양성 감소와 일부 어종의 멸종을 초래한다. 어도 설치시 설계기준에서 가장 주목할 부분은 어도를 이용할 대상어종의 범위와 유영능력이다. 하천설계기준(2005, 한국수자원학회)에서 제시된 물고기의 유영능력은 대부분 국외 어종을 대상으로 외국에서 실험한 결과를 이용하고 있다. 그러므로 이러한 기준이 국내 어종에 대해 적합한지에 대한 검토가 필요하다. 본 실험의 목적은 국지회유성인 피라미와 각시붕어가 인공수로를 통과할 때의 유영행동 중 소상성공율과 유영속력을 평가하고자 함이다. 유영행동의 실험방법은 Brett(1967)에 의해 제안된 2가지 방법인 증진유속방법과 고정유속 방법중에서 물고기의 이동경로와 소상능력을 확인하기에 용이한 고정유속방법을 사용하였다. 또한, 효과적인 실험을 위해 실험어종(피라미 100마리, 각시붕어 100마리)이 실험 중에 최적의 건강상태를 유지할 수 있도록 물고기의 적응 기간(24시간)과 실험 중 휴식기간을 두었다. 실험결과 체형이 방추형(fujiform)인 피라미의 경우 평균유속 $0.7{\sim}0.8m/s$구간에서 소상성공율이 61%에서 26%로 급격하게 하락하는 현상이 나타났다. 그리고 측편형(compressiform)의 체형을 가진 각시붕어의 경우 평균유속 0.4m/s에서 소상성공율이 25%로 나타났으며 그 이상의 유속에서는 10%이하로 나타났다. 실험어종의 이동경로를 분석한 결과 대부분 수로바닥에 밀착하여 최저유속구간을 이용하여 이동하는 것으로 나타났으며, 이동경로의 지점유속은 평균 유속의 70%정도로 나타났다. 실제 하천에 설치된 인공수로가 생태통로의 기능을 유지하기 위해서는 평상시 수리특성이 대상어종의 유영능력을 초과하지 않도록 설계되어야 한다. 특히, 하천에 설치된 인공수로의 길이가 $5{\sim}10m$정도일 경우라면 피라미의 소상 가능성을 50% 이상 확보하기 위해서는 평수시 설계유속이 0.7m/s를 초과하지 않아야 할 것으로 판단된다.

• Journal of Advanced Navigation Technology
• /
• v.26 no.5
• /
• pp.312-318
• /
• 2022

Currently, the Republic of Korea is facing the problem of a decrease in military service resources due to the demographic cliff, and is pursuing military restructuring and changes in the military force structure in order to respond to this. In this situation, the Army is pushing forward the deployment of a drone-bot combat system that will lead the future battlefield. The battlefield of the future will be changed into an integrated battlefield concept that combines command and control, surveillance and reconnaissance, and precision strike. According to these changes, unmanned combat system, including dronebots, will be widely applied to combat situations that are high risk and difficult for humans to perform in actual combat. In this paper, as one of the countermeasures to these changes, autonomous behavior software with a BDI architecture-based decision-making system was developed. The autonomous behavior software applied a framework structure to improve applicability to multiple models. Its function was verified in a PC-based environment by assuming that the target UAV is a battalion-level surveillance and reconnaissance UAV.

• Proceedings of the Korea Water Resources Association Conference
• /
• 2006.05a
• /
• pp.291-295
• /
• 2006

비상대처계획(EAP, Emergency Action Plan) 수립 및 홍수위험지도 작성의 목적은 댐.제방 붕괴 등 비상상황이 발생하였을 때 하류부의 생명과 재산 손실을 최소화하기 위한 것으로서 댐 운영 및 관리책임자가 극한홍수 및 지진발생 조건하에서 댐의 물리적, 지형적, 구조적 특성에 따른 발생 가능한 비상상황을 예상하고 이에 효율적으로 대처하기 위한 가능한 최선의 사전계획을 수립하는 것이다. 또한, 댐의 비상상황에 대처하기 위한 비상대처계획 수립 의무화 및 이에 대한 실제적인 모의훈련 등에 필요한 기초자료를 체계적으로 제공하고자 함에 있다. 국내에서 EAP를 수립하여야 할 대상 댐 저수지는 한국수자원공사에서 관리하는 다목적댐, 생공용수댐과 한국농촌공사에서 관리하는 농업용저수지, 한국수력원자력주식회사에서 관리하는 수력발전댐 및 지방자치단체에서 관리하는 댐 등이 해당된다. 제방의 경우 인구가 밀집되어 있는 전 지역이 그 대상이 될 수 있다. EAP의 주요 내용에는 만약에 발생할 수 있는 붕괴 사고시 인명의 손실이나 재산상의 피해를 발생시킬 수 있는 댐 저수지들에 대해서는 EAP를 수립하거나 갱신하기 위한 지침들이 포함되어 있어야 한다. 댐으로부터의 하류 연안지역의 개발이나 소유권은 다양하며, 이로 인해 댐의 운영이나 붕괴로 인한 잠재적 인명손실 또한 다양할 수 있다. 따라서 모든 EAP는 댐, 저수지 하류부 현장 조건에 맞도록 구성되어야 한다. EAP 수립의 주체는 댐 및 저수지 관리자이며 EAP에는 비상상황 확인, 평가, 등급분류, 비상연락체계 및 경보전달체계 수립, 비상시 응급행동요령, 홍수범람예측지도 작성, 비상주민대피계획 및 훈련방안, 부록, 주기적 또는 필요시마다 보완 계획 등이 포함되어야 하며, EAP의 주요 구성요소인 홍수위험지도에는 홍수위험정보 및 대피정보를 제시함으로써 실제 주민 대피계획시 실제적이고 효율적인 대피계획 수립에 활용될 수 있다. 있는 기술가치평가 모형의 구축이 요구된다. 이에 본 연구에서는 효율적인 R&D 투자 정책 수립과 정부정책수립에 기여하고자 AHP(Analytic Hierarchy Process, 계층 분석 과정)기법을 이용, 수자원의 지속적 확보기술의 특성에 따른 4개의 평가기준과 26개의 평가속성으로 이루어진 2단계 기술가치평가 모형을 구축하였으며 2개의 개별기술에 대한 시범적용을 실행하였다.하는 것으로 추정되었다.면으로의 월류량을 산정하고 유입된 지표유량에 대해서 배수시스템에서의 흐름해석을 수행하였다. 그리고, 침수해석을 위해서는 2차원 침수해석을 위한 DEM기반 침수해석모형을 개발하였고, 건물의 영향을 고려할 수 있도록 구성하였다. 본 연구결과 지표류 유출 해석의 물리적 특성을 잘 반영하며, 도시지역의 복잡한 배수시스템 해석모형과 지표범람 모형을 통합한 모형 개발로 인해 더욱 정교한 도시지역에서의 홍수 범람 해석을 실시할 수 있을 것으로 판단된다. 본 모형의 개발로 침수상황의 시간별 진행과정을 분석함으로써 도시홍수에 대한 침수위험 지점 파악 및 주민대피지도 구축 등에 활용될 수 있을 것으로 판단된다. 있을 것으로 판단되었다.4일간의 기상변화가 자발성 기흉 발생에 영향을 미친다고 추론할 수 있었다. 향후 본 연구에서 추론된 기상변화와 기흉 발생과의 인과관계를 확인하고 좀 더 구체화하기 위한 연구가 필요할 것이다.게 이루어질 수 있을 것으로 기대된다.는 초과수익률이 상승하지만, 이후로는 감소하므로, 반전거래전략을 활용하는 경우 주식투자기간은 24개월이하의 중단기가 적합함을 발견하였다. 이상의 행태적 측면과 투자성과측면의 실증결과를 통하여 한국주식시장에 있어서 시장수익률을 평균적으로 초과할 수 있는 거래전략은 존재하므로 이러한 전략을 개발 및 활용할 수 있으며, 특히, 한국주식시장에 적합한 거래전략은 반전거래전략이고, 이 전략의 유용성은 투자자가 설정한 투자기간보다 더욱 긴 분석기간의 주

• The Journal of the Korea Contents Association
• /
• v.11 no.10
• /
• pp.405-415
• /
• 2011

The primary purpose of this paper is to identify the influencing factors on the new products adoption between countries and generations. For this purpose, a research is developed based on the relevant literature reviews. Data have been collected from 524 persons and were tested by t-test and various statistical methods. The results of this empirical study are summarized as follows. In the cultural factors, the groupism has high discretion in China old generation. The materialism and shopping preference have high discretion in two young generations. There is no difference between the two groups in the distance of power. In innovativeness of personality, Korea and China young generation have high discretion. Innovativeness has high discretion in Korea and China youngs. Cognition and sensory innovativeness are has low discretion in Korea old. In the social risk perception, physiological, functional general and financial risk has high discretion in China old. In risk reducing behavior, the normative taking level and ad, new product adoption has high discretion in Korea and China youngs. But, the influence of others has high discretion in China old generation. The safety and brand reputation are no influences. The findings have a several marketing strategies in generation and countries.

• Knowledge Management Research
• /
• v.23 no.4
• /
• pp.275-294
• /
• 2022

In recent years, with the continuous integrative development of e-commerce and social media, social commerce, as a trust-centered social transaction mode, has become an important performance form of e-commerce. The good experience of online community and abundant user-generated content (UGC) attract more and more users and businesses to participate in the community contribution. In this context, the cost of accessing information is continuously decreasing, which not only makes the purchase process more concise and efficient, but also greatly increases the possibility of consumers' impulsive consumption. However, there are very few empirical studies on the internal influencing mechanism of consumers' impulsive consumption based on the characteristics of UGC for social commerce. In view of this, based on S-O-R model, this study constructs a model of consumers' impulsive consumption in the context of social commerce from the characteristics of UGC, with perceived risk as the mediating variable and tie strength as the moderating variable. The results show that content authenticity, content usefulness, and content valence of UGC have significant negative impacts on consumers' risk perception in the process of purchase decision-making, and consumers' perceived risk has a significant negative impact on consumers' impulsive consumption. Meanwhile, the tie strength between UGC producer and UGC receiver plays a moderating role between content usefulness and perceived risk, as well as between perceived risk and impulsive consumption. Finally, combined with the above findings, this study provides effective suggestions for relevant participants in social commerce in terms of business management.