• The Journal of the Korea Contents Association
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• v.11 no.6
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• pp.385-396
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• 2011

Internet web pages can be classified by three major types such as texts only, images with texts and videos with texts. The purpose of this paper is to analyze how customers recognize and respond perspective of perceived risk and media richness with regard to design patterns of internet web pages. Additionally, we will examine the extent to which aforementioned factors affect customer satisfaction. Analyses with perceived risks revealed that customers feel less personal risks including performance, psychology and time/convenience when used web pages of text-images and text-videos, compared to text only based web pages. However, customers feel that web pages consisting of image-text or video-text have higher points in terms of symbolism and social presence in media richness, compared to text only based web pages. Finally, we showed that personal risk and text-based Web page negatively affect but symbolism and social presence positively impact on customer satisfaction. Therefore, this study suggests a clue that why video-based Web content did not grow different from many people's expectation.

• Journal of the Korean Society of Marine Environment & Safety
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• v.29 no.1
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• pp.76-85
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• 2023

Demand for hydrogen as a renewable energy resource is increasing. However, unlike conventional fossil fuels, hydrogen requires a dedicated refueling station for fuel supply. A risk assessment of hydrogen refueling stations must be undertaken to secure the infrastructure. Therefore, in this study, a risk assessment for hydrogen refueling stations was conducted through both qualitative and quantitative risk assessments. For the qualitative evaluation, the hydrogen dispenser module was evaluated as two nodes using the hazard and operability (HAZOP) analysis. The risk due to filter clogging and high-pressure accidents was evaluated to be high according to the criticality estimation matrix. For the quantitative risk assessment, the Hydrogen Korea Risk Assessment Module (Hy-KoRAM) was used to indicate the shape of the fire and the range of damage impact, and to evaluate the individual and social risks. The individual risk level was determined of to be as low as reasonably practicable (ALARP). Additional safety measures proposed include placing the hydrogen refueling station about 100m away from public facilities. The social risk level was derived as 1E-04/year, with a frequency of approximately 10 deaths, falling within the ALARP range. As a result of the qualitative and quantitative risk assessments, additional safety measures for the process and a safety improvement plan are proposed through the establishment of a restricted area near the hydrogen refueling station.

• Korean Journal of Culture and Social Issue
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• v.13 no.3
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• pp.89-109
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• 2007

This study is an exploratory study on stock investment behaviors of individual investors in psychological perspective. The study is based on many behavioral finance studies which overconfidence of individual investors has an effect on irrational investment decision making and investment behaviors such as excessive trading. Accordingly, this study was to investigate the factors of self-enhancement perception on confidence of investment of individual investors and to find whether these psychological biases lead to irrational investment behaviors. The results indicated that there were sex differences in the factors of self-enhancement perception on individual investors' confidence of investment. In case of male investors, they were confident of their ability of investment but in case of female investors, they were confident of optimistic expectation of return. Also, male investors were more confident of investment than female investors. In addition, the result showed that risky investment behaviors of individual investors were influenced by psychological factors such as favorable self-evaluation, confidence of self-controllability, optimistic expectation of return and confidence of investment in part. This study suggests that further researches need to search after other variables which can mediate between psychological factors and investment behaviors of individual investors.

• The Journal of the Convergence on Culture Technology
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• v.9 no.6
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• pp.703-708
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• 2023

The current study investigates VPA usage (i.e.,continuance intention of use, WOM intention) of by Theory of Planned Behavior (i.e.,attitude toward to VPA, subjective norm, perceived behavioral control) and perceived value/risk. The results show that (1) attitude toward to VPA, subjective norm, perceived behavioral control, and perceived value positively predicted the continuance intention of VPA use. Regarding WOM of intention, there were positively significant effects of the attitude toward to VPA, subjective norm, perceived behavioral control, and perceived value. The results of this study are expected to provide a variety of practical and theoretical implications in promising artificial intelligence market by the impact of TPB (i.e.,attitude toward to VPA, subjective norm, perceived behavioral control) and perceived values of VPA.

• Journal of the Korea Society of Computer and Information
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• v.10 no.4 s.36
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• pp.305-313
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• 2005

Spyware is any software which employs a user's Internet connection in the background without their knowledge or explicit permission. The installation of spywares is generally done in a sneaky, misleading or unannounced manner. It does not only compromise the security and privacy of affected users but also be an obstruction to the digital convergence and ubiquitous computing environments. This paper provides a summary of the definition, status, risk analysis, and security controls of the spywares. Furthermore, this paper suggests additional controls which should be considered at an individual, organizational and national perspective.

• Journal of the Korean Institute of Gas
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• v.24 no.5
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• pp.1-9
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• 2020

In Korea, hydrogen stations are being promoted and commercialized. However, the risk assessment for the hydrogen station is not clear. In particular, it is not clear how to calculate the risk and acceptable criteria for a hydrogen station. Therefore, in this study, three hydrogen stations being installed were selected and general risks were calculated and the social risk of each hydrogen station was calculated. In general, the method of risk assessment is individual/social risk. This is an individual's death rate considering the frequency of accidents, And the likelihood of death according to the number of nearby residents. These can be used to calculate the level of risk for a hydrogen station. However, this method of calculate risks is the criteria for judging whether it is acceptable are unclear. For this reason, this study investigated the allowable standards for foreign risks and considered that they were acceptable by applying the risks of selected domestic hydrogen stations.

• The Journal of the Korea Contents Association
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• v.19 no.5
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• pp.194-204
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• 2019

The mobile payment app market has been expanding recently. However, the usage rate of mobile payment apps is not meeting service providers' expectations due to concerns about security and privacy. This study investigated how personal predisposition and how the security signals of the payment app affect users' perceived privacy and security risks, and how these factors ultimately affect the trust of mobile payment apps. The results showed that privacy concerns increase the risk of perceived personal information leaks and reduce perceived mobile system security, while familiarity, perceived reputation, and assurance seal reduce the risk of perceived personal information leaks and increase perceived mobile system security. Finally, it revealed that the reduced risk of perceived personal information leaks and the increased security of mobile systems had a positive impact on the reliability of mobile payment apps.

• The Journal of Korean Society for School & Community Health Education
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• v.23 no.2
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• pp.25-38
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• 2022

목적: 본 연구의 목적은 대사증후군 주의군 대비 대사증후군의 위험요소를 식별하여 예방을 위한 중재방안을 마련하기 위한 것이다. 방법: 한국의료패널 2015년도 데이터를 활용하여 당뇨만 앓고 있는 사람을 주의군으로 당뇨, 고혈압, 이상지질혈증을 모두 앓고 있는 사람을 대사증후군으로 구분하여 추출한 다음 가중치를 부여하여 총 1,559,884명을 대상으로 하였다. 주의군 대비 개인적 특성, 건강생활습관 특성, 삶의 질 특성, 의료이용 특성에 대한 대사증후군의 영향요인을 분석하였다. 결과: 개인적 특성에서는 40대미만 연령대에 비해 연령에 비례하여 대사증후군 위험이 증가하다 70대에 40대미만과 유사한 수준으로 떨어졌다. 남성보다는 여성, 고졸이하보다는 대졸이상, 중소지역에 비해 서울시 거주자, 장애가 없는 군보다는 있는 군, 의료급여가입자보다는 건강보험 가입자, 경제활동을 안하는 군보다는 경제활동 군의 대사증후군 위험이 높았다. 건강생활 습관 특성에서는 비흡연자보다는 흡연자, 술을 안마시는 군보다는 주 2-3회 이상 음주자, 운동을 하는 군보다 안하는 군, BMI가 정상인 군보다는 30 이상인 군에서 대사증후군 위험이 높았다. 삶의 질 특성에서는 일상 활동에 지장이 없는 군보다 있는 군, 통증이나 불편이 없는 군보다 있는 군, 주관적 건강상태가 보통이상보다는 나쁜 군, 섭식문제가 없는 군보다 있었던 군에서 대사증후군 위험이 높았다. 의료이용 특성에서는 미충족 의료이용 경험이 없는 군보다 있었던 군, 약제비가 부담이 안되는 군보다 부담이 되는 군에서 대사증후군 위험이 높았다. 결론: 당뇨를 앓고 있는 그룹 중 본 연구를 통해 확인된 대사증후군 위험 요소가 많은 이들에 대해 우선적으로 대사증후군 예방 보건교육을 집중하는 방안을 제언한다.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2011.11a
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• pp.494-497
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• 2011

소방공무원은 가장 위험한 직업중 하나로 과로사부터 훈련이나 화재진압 현장에서의 사망에 이르기까지 생명의 위험에 노출되어 있다. 이러한 위험성은 소방공무원을 기타 다른 분야의 공무원들과 근본적으로 차이를 가지게 하는 특성으로 작용한다. 소방공무원을 둘러싼 위험을 유발하는 요소들은 치명적 사고로 이어질 수 있을 뿐만 아니라, 스트레스를 증가시키고 있다. 위험 유발 요소들은 제도적 요인, 문화적 요인, 그리고 개인적 경험으로 분류될 수 있고 다시 하위 항목으로 나뉠 수 있다. 본 연구에서는 소방공무원과 관련한 위험유발요인들이 스트레스라는 매개변수를 통해 소방공무원들의 조직몰입에 주는 영향을 고찰하였다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.30 no.4
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• pp.719-734
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• 2020

This paper proposes a new measurement scheme for estimating the processing level according to risk when performing de-identification in the use of personal information by practitioners in the organization in line with the recently revised Data 3 Act. Our proposed methods considered the surrounding circumstances surrounding the data, not just the data, for risk measurement, and divided the data situation into three categories more systematically so that it can be applied in all areas in a general-purpose environment, the data utilization environment, and the data (self) so that it can be calculated quantitatively based on each context risk according to the presented classification. The proposed method is designed to calculate the risk of existing de-identifiable information in a quantitative manner so that personal information controller in general organizations can use it in practice, not just in the qualitative judgment of experts.