• Journal of Digital Convergence
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• v.12 no.6
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• pp.625-635
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• 2014

The purposes of the study is to examine the relationship between developmental assets, stress and risk behaviors of university students. The subject of the study is 1023 university students. Questionnaire organized by scales of developmental assets, stress and risk behaviors was used. The major findings were as follows; First, internal assets made direct effects on stress and risk behaviors. External assets made direct effects on stress. Second, mediating effects of stress were statistically significant in relations between developmental assets and risk behaviors. External assets were complete mediating effects by making effects indirectly on risk behaviors through the stress. Internal assets showed partial mediating effects.

• Proceedings of the KAIS Fall Conference
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• 2012.05a
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• pp.300-303
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• 2012

기존의 디지털미디어에 관한 논의들이 지나치게 디지털기술의 생산성과 효율성에만 주목하면서 긍정적인 면도 많지만 역으로 디지털 치매 등과 같은 문제점을 내포하고 있다. 다시 말해 스마트 폰 등에 저장되어 있는 전화번호 및 메모 등이 우리에게 편리함이라는 혜택을 주고는 있지만 반대로 조그마한 것이라도 쉽게 기억해 내지 못하는 역효과가 사회적 이슈로 대두되고 있다. 이를 위해 본 논문에서는 디지털미디어 이용자들의 위험성과 문제점 및 해결방안에 대한 의견 등 최근 가장 주목받는 미디어로서 대부분 디지털매체를 포괄하는 융합미디어이기 때문에 다양한 위험요인들이 집결되어있는 특징을 여러 디지털기기사용자를 분석대상으로 삼아 이러한 유형들에 대한 사례들 그리고 이러한 유형들에 대한 예방 및 사후대응방안에 대한 의견을 확인하고 이를 해결하기 위한 방안을 제시하고자 한다.

• Journal of Digital Contents Society
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• v.14 no.4
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• pp.455-462
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• 2013

This paper proposes a detection system that, by determining whether a dangerous act is being carried out among other pedestrians in the images captured using CCTV, provides pre-warnings and establishes emergency measures. To determine the presence of a dangerous act, after setting zones of interest and danger zones within those zones of interest, the danger level is determined in accordance with the range of encroachment upon detecting an object. Especially, this research aims at detecting a suicide jump from the bridge and extends to detecting a dangerous act among pedestrians from detecting a dangerous act of only one person with no one in the previous research. This system classifies the status into 3 levels as safe, alert, and danger according to the amount of part being over the bridge railing. If a situation is deemed as warning-worthy and emergency, the integrated control center is immediately alerted to facilitate prevention in advance.

• Journal of Digital Convergence
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• v.18 no.6
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• pp.187-196
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• 2020

We tried to do research on main views(risk and knowledge-based) and propose user knowledge as a factor to be managed in order to strengthen the performance. This study empirically analyzed the user-related and project management risk that affect the IT project performance, and verified user knowledge as a moderating variable. The survey was conducted for respondents who have experience on IT Project of public sector and data were analyzed by Smart PLS 3.0. The results show that low user-related and project management risks have a positive effect on performance. In addition, user knowledge has been shown to enhance the impact of two risks on performance. These findings are meaningful in that they emphasize the importance of user knowledge in public-sector IT projects, as well as the repeated verification of integrated research results.

• Journal of Digital Convergence
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• v.15 no.11
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• pp.107-112
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• 2017

This paper performed an experimental study to test the validity of the prospect theory proposed by Tversky and Kahneman as an alternative to the expected utility theory. 115 college students attended the hypothetical games to choose one of two lotteries, one is safe option while the other one is risky. The risky options were set up to have low, medium or high probability of payoffs or losses. The amount of payoffs and losses of the lotteries was either large or small. Maximum likelihood estimation of the hypothetical games have shown that in case of high probability of positive payoffs the respondents were risk averse and when the probability of positive payoffs were small the respondents were risk loving. when the possibility of loss is high they were risk loving, while the probability is of loss is low the respondents were found to be risk averse. When the probability of risky options were medium the results were significant statistically in case of only losses. The amount of positive payoff or losses does not affect the results. Overall the results of this experiments support the prospect theory more than those of Laury & Holts (2008).

• Journal of Digital Convergence
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• v.12 no.12
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• pp.93-106
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• 2014

All of smart phone users not always make a good use of mobile shopping. The main cause is that in case of non-user of mobile shopping, potential apprehension to psychological and security weakness affects building up resistance on mobile shopping. In this paper, we designed models of innovation resistance heavily based on literature reviews and previous studies, and tried to find how perceived risk affects consumer's purchase intention in mobile shopping process. In conclusion, it shows that security, one of psychological factors, affects perceived risk in all aspects, while negative influence of society and cognitive dissonance just affect social risk and delivery risk, and uncertainty also just affects performance risk. Besides, it shows that all of variables made up perceived risk affects resistance of purchase. Especially social risk turns out to be a most influential factor to purchase behavior through smart phone.

• Journal of Digital Convergence
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• v.20 no.5
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• pp.239-251
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• 2022

This study tried to understand the structural relationship between public crisis communication, emotional influence, and behavioral intention in a national crisis/risk situation. Based on the results of previous studies and empirical studies, the results of crisis/threat type, crisis/threat response, sentiment (crisis/risk responsibility, strategic risk/risk reflective response), and action intention For tourists who visit tourist destinations, as well as the relationship between crisis and risk communication at the tourist destination and one of the unique emotions of Koreans (crisis threat responsibility, strategic response, and reflective response to crisis threat) The relationship between the outcome variable, behavioral intention, was identified. A theoretical study was conducted on each research concept to achieve the proposed research purpose. Based on this, a questionnaire was drawn up and empirical research was conducted in parallel. Three hypotheses were established, and meaningful results were confirmed according to the results of the hypotheses. When a risky situation occurs, the government, business, and local community will actively respond and respond to it as an opportunity to offset the risk of crisis.

• The Journal of the Korea Contents Association
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• v.21 no.9
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• pp.333-346
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• 2021

The purpose of this study is to examine the effects of digital cultural contents characteristics, perceived values and perceived risks on customer satisfaction and purchase intentions for Chinese consumers, and contribute to the development of digital cultural contents. In addition, a total of 328 valid samples were obtained through an online survey and empirical analysis was conducted. The analysis results of the study are as follows. First, except for creativity, which are characteristics of digital cultural contexts, entertainment and interactivity also have a significantly positive effect on both customer satisfaction and purchase intention. Second, perceived value has a significant positive effect on customer satisfaction and purchase intention, whereas perceived risk does not have this significant effect. Third, customer satisfaction has a partial mediating effect between the three factors(entertainment, interactivity, perceived value) and purchase intention. Therefore, to promote the development of digital cultural contents, we could promote consumers' purchase behavior by improving satisfaction through content entertainment, communication between content producers and service providers, and unity and value that customers actually feel during the consumption process.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.11a
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• pp.222-224
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• 2023

자율운항선박의 해상 운용은 인간의 개입 최소화 등 새로운 운용 방식의 적용과 첨단 디지털기술의 적용으로 기존 선박의 운용과 다른 형태의 다양한 새로운 위험요소들이 발생할 것으로 예상되며, 이러한 위험을 분석하기 위한 적절한 위험도평가 방법론의 적용이 요구될 것이다. 본 연구는 기존 선박과 달리 인간의 개입이 최소화된 상태로 운용되는 자율운항선박의 화재 사고 위험도를 실시간으로 분석하기 위한 실시간 위험도 모델의 개발을 목적으로 수행되었다. 자율운항선박 화재 위험도 모델 개발을 위하여, 먼저 자율운항선박의 화재 감지 및 제어, 비상대응 기능들을 분석하고, 기능분석 결과를 바탕으로 화재 감지 및 제어 시스템들에 대한 Fault Tree Analysis를 수행하였다. 자율운항선박의 화재 시나리오 표현을 위하여 기관구역 화재와 화물구역 화재로 분류하여 Event Tree Analysis를 수행하였다. 또한, 자율운항선박 운용 외부 조건에 따라 변화하는 변수들을 식별하여 각 변수들의 변화로 인하여 발생할 수 있는 자율운항선박 화재 위험도 변화량을 검토하였다.

• Journal of Digital Convergence
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• v.16 no.1
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• pp.421-430
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• 2018

The purpose of this study is to explore the effects of mental health (stress perception, depression, suicidal ideation) on binge drinking among adolescents according to gender. Data were collected from the 12th (2016) Korea Youth Risk Behavior Web-Based Survey(KYRBWS) and 65,528 middle and high school students, aged 12-18 years, were selected. Data analysis was conducted by using logistic regression analysis for mental health effects on binge drinking. The results showed that the binge drinking due to mental health of female students was higher in that of male students (stress perception: 1,444 times (95% CI: 1,200-1,737), depression: 1,843 times (95% CI: 1.674-2.029), suicidal ideation: 1.656 times (95% CI: 1.464-1.872)). The development of preventive / therapeutic programs for binge drinking should include not only the management of risk factors for mental health but also various approaches depending on gender.