• 대한방사선기술학회지:방사선기술과학
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• 제46권5호
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• pp.435-444
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• 2023

The purpose of this study was to analyze the factors that demographic factors, radiation knowledge level, and radiation awareness could be affecting the benefits of radiation. From July 2022 to July 2023, after receiving consent to participate by using the link of Naver through Social Network Service (SNS) for the general public, 312 people were surveyed by self-registration method without collecting personal information. The questionnaire consisted of a total of 25 questions following demographic factors (5 questions including age group by life cycle, sex, monthly household income, residence), radiation knowledge level (8 questions including basic physical, biological effects, radiation protection technology), radiation awareness (12 questions including risk, management, benefit). Independent sample T-test and ANOVA tests were performed for significant differences in the average radiation awareness between variables, and hierarchical regression was performed to identify influencing factors on radiation benefits. As a result, the benefit of radiation was significantly high among the radiation awareness, but the awareness of the danger of radiation was insufficient to the level of recognizing it as safe. Men had significantly higher awareness of radiation management and benefits than women, and the awareness of radiation management was significantly higher in the middle class with a monthly household income of 4.31 million won or more. The higher the knowledge level of radiation, the higher the awareness of the benefits of radiation. The factors that had a positive effect on radiation benefits were the high level of radiation knowledge and awareness of radiation management.

• International Journal of Computer Science & Network Security
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• 제22권5호
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• pp.320-326
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• 2022

The use of the Internet has become commonplace for billions of people on the planet. The rapid development of technology, in particular, mobile gadgets, has provided access to communication anywhere, anytime. At the same time, there are growing concerns about the behavior of people on the Internet, in particular, towards each other and social groups in general. This raises the issue of human rights in today's information society. In this study, we focused on human rights such as the right to privacy, confidentiality, freedom of expression, the right to be forgotten, etc. We point to some differences in this regard, in particular between the EU, etc. In addition, we describe the latest legal regulation in this aspect in European countries. Such methods as systemic, factual, formal and legal, to show the factors of formation and development of human rights in the context of digitalization were used. The authors indicate which of them deserve the most attention due to their prevalence and relevance. Thus, we concluded that the technological development of social communications has laid the groundwork for a legal settlement of privacy and opinion issues on the Internet. Simultaneously, jurisdictions address issues on every aspect of human rights on the Internet, based on previous norms, case law, and principles of law. It is concluded that human rights legislation on the Internet will continue to be actively developed to ensure a balance of private and public interests, safe online access and unimpeded access to it.

• 한국산업융합학회 논문집
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• 제24권6_2호
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• pp.699-706
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• 2021

Existing license plate recognition system is used as an optical character recognition method, but a method of using deep learning has been proposed in recent studies because it has problems with image quality and Korean misrecognition. This requires a lot of data collection, but the collection of license plates is not easy to collect due to the problem of the Personal Information Protection Act, and labeling work to designate the location of individual license plates is required, but it also requires a lot of time. Therefore, in this paper, to solve this problem, five types of license plates were created using a virtual Korean license plate generation program according to the notice of the Ministry of Land, Infrastructure and Transport. And the generated license plate is synthesized in the license plate part of collectable vehicle images to construct 10,147 learning data to be used in deep learning. The learning data classifies license plates, Korean, and numbers into individual classes and learn using YOLOv5. Since the proposed method recognizes letters and numbers individually, if the font does not change, it can be recognized even if the license plate standard changes or the number of characters increases. As a result of the experiment, an accuracy of 96.82% was obtained, and it can be applied not only to the learned license plate but also to new types of license plates such as new license plates and eco-friendly license plates.

• 의학교육논단
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• 제25권2호
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• pp.84-101
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• 2023

Longitudinal data can provide important evidence with the potential to stimulate innovation and affect policies in medical education and can serve as a driving force for further developments in medical education through evidence-based decisions. Tracking and observing cohorts of students and graduates using longitudinal data can be a way to link the past, present, and future of medical education. This study reviewed practical methods and technical, administrative, and ethical considerations for the establishment and operation of a longitudinal database and presented examples of longitudinal databases. Cohort study design methods and previous examples of research using longitudinal databases to explore major topics in medical education were also reviewed. The implications of this study are as follows: (1) a systematic design process is required to establish longitudinal data, and each university should engage in ongoing deliberation about this issue; (2) efforts are needed to alleviate "survey fatigue" among respondents and reduce the administrative burden of those conducting data collection and analysis; (3) it is necessary to regularly review issues of personal information protection, data security, and ethics regarding the survey respondents; and (4) a system should be established that integrates and manages a longitudinal database of medical education at the national level. The hope is that establishing longitudinal data and cohorts at individual medical schools will not be a temporary phenomenon, but rather that they will be well utilized at the national level to innovate and implement ongoing changes in medical education.

• International Journal of Internet, Broadcasting and Communication
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• 제16권2호
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• pp.209-217
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• 2024

Recent years have seen a notable increase in fire incidents in university cafeterias, yet the social attention to these occurrences remains limited. Despite quick responses to these incidents preventing loss of life, the need for large-scale evacuation in such high foot traffic areas can cause significant disruptions, economic losses, and panic among students. The potential for stampedes and unpredictable damage during inadequate evacuations underscores the importance of fire safety and evacuation research in these settings. Previous studies have explored evacuation models in various university environments, emphasizing the influence of environmental conditions, personal characteristics, and behavioral patterns on evacuation efficiency. However, research specifically focusing on university cafeterias is scarce. This paper addresses this gap by employing Pathfinder software to analyze fire spread and evacuation safety in a university cafeteria. Pathfinder, an advanced emergency evacuation assessment system, offers realistic 3D simulations, crucial for intuitive and scientific evacuation analysis. The studied cafeteria, encompassing three floors and various functional areas, often exceeds a capacity of 1500 people, primarily students, during peak times. The study includes constructing a model of the cafeteria in Pathfinder and analyzing evacuation scenarios under different fire outbreak conditions on each floor. The paper sets standard safe evacuation criteria (ASET > RSET) and formulates three distinct evacuation scenarios, considering different fire outbreak locations and initial evacuation times on each floor. The simulation results reveal the impact of the fire's location and the evacuation preparation time on the overall evacuation process, highlighting that fires on higher floors or longer evacuation preparation times tend to reduce overall evacuation time.In conclusion, the study emphasizes a multifaceted approach to improve evacuation safety and efficiency in educational settings. Recommendations include expanding staircase widths, optimizing evacuation routes, conducting regular drills, strengthening command during evacuations, and upgrading emergency facilities. The use of information and communication technology for managing emergencies is also suggested. These measures collectively form a comprehensive framework for ensuring safety in educational institutions during fire emergencies.

• 정보화정책
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• 제17권1호
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• pp.43-62
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• 2010

우리나라의 대표적인 개인 정보는 주민등록번호라고 할 수 있다. 정보화의 급속한 진전과 발전 그리고 인터넷이 우리 생활의 일부가 되기 시작하면서 가상공간에서 개인 정보 보호에 대한 문제가 제기되기 시작하였다. 특히 가상 공간에서의 주민등록번호 사용은 개인 정보 오남용 등의 프라이버시 침해와 관련한 여러 가지 사회 문제들을 야기하고 있다. 가상 공간에서 주민등록번호 사용으로 발생하는 이와 같은 문제들을 해결하기 위해 정부는 2000년대 초반부터 가상 공간에서 주민등록번호를 대체할 수 있는 수단을 꾸준히 모색해 왔고, 그 결과 2006년 10월 이후부터 5개 민간 기관이 참여한 '인터넷 주민등록번호 대체 수단(i-PIN)' 서비스를 시행하고 있다. 하지만 i-PIN 도입 이후에도 개인 정보 침해 사건의 감소는 이루어 지지 않았고, 오히려 대형의 개인 정보 유출 사건이 빈번히 발생했다. 이런 상황들은 i-PIN의 성공적인 정착의 필요성, 가상공간에서의 개인 정보 보호의 중요성을 일깨워 주고 있다. 따라서 이 논문은 i-PIN 정책이 성공적으로 정착할 수 없었던 이유를 분석하고자 했다. 현재 정부의 주민등록번호 대체 수단인 i-PIN을 정책집행에 관한 이론 모형으로 분석하여 안전한 주민등록 번호 대체 수단의 효율적인 구현 방안을 모색하고자 한다.

• 한국응급구조학회지
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• 제11권2호
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• pp.19-27
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• 2007

Purpose: By identifying the actual profile of emergency medical personnel's pre-admission infection control practices, this study intended to provide a basic reference material for the improvement and reorientation of pre-admission infection control measures, and thereby help establish an effective plan for pre-admission infection control activities. Methods: Total 119 EMT's working for Jeollabuk-do Provincial Fire Defense HQ were asked to join a structured questionnaire survey from June to August 2006. Results: 1. It was found that 56.1% respondents answered no guideline available on the prevention of infection. Out of our rescue brigade members who knew about relevant guideline available, 34.2% respondents answered that their department conducted quality control program for the guideline. 2. For protective outfit in emergency practice, it was found that most respondents put on gloves or nothing at all(38%), which was followed by sterile gloves(29.2%), disposable mask(26.9%), gown(4.3%) and protective goggle(1.6%). And it was noted that all respondents(100%) washed out any clothing contaminated with somatic secretion on their own. 3. For a question about any experience in emergency activities exposed to infectious diseases, it was found that most of all respondents(77.9%) answered 'No', which was followed by 'Don't Know'(18.6%) and Yes(3.9 %). 4. For a question about any experience in inquiring of patients about infectious diseases, it was found that most respondents(49.4%) answered 'Yes' and 'Sometimes'(9.1%). It was noted that 20.2% respondents had extra medical examination in medical institution in terms of whether they were exposed to infectious diseases, apart from regular medical examination. Conclusions: In order to protect 119 EMT's from infectious diseases, it will be necessary to acquire emergency medical staffs specializing in infection control and organize corresponding personnel training units to keep providing reorientation and evaluation. In addition, it will be also necessary to supply them with a full set personal protection apparatuses and other equipments required for disinfection and sterilization.

• 한국항공운항학회지
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• 제23권1호
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• pp.103-112
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• 2015

In this study, a study was carried out to see what influence low-cost carrier's e-service quality has on low-cost carrier customers' perceived value and customer satisfaction and what impact the results have on customer loyalty based on the results of previous studies related to e-SERVQUAL, an e-SERVQUAL measurement model for general e-commerce. In addition, a survey of consumers who have experienced using low-cost carrier experience through web sites was conducted. For the analysis of the data collected, SPSS 18.0 was used to conduct frequency analysis, factor analysis, reliability analysis, correlation analysis, and regression analysis and thus to test a hypothesis. Research findings showed that perceived value and customer satisfaction are closely related to customer loyalty, and it was also observed that the reliability factor on the service provided on the web site acts as an important influencing factor for customer loyalty in the perceived value and security factors such as payment by credit cards and protection of personal information serve as important one in terms of customer satisfaction. This study has its limitation in that samples of users who have experienced low-cost carrier are concentrated on specific ages and professions. In the future, it is required to conduct further studies on whether difference is made on the importance of measurement factors related to e-service quality by gender, age group, occupation, and e-service quality.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제53권6호
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• pp.330-336
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• 2004

In this work, in order to obtain the detailed information about lightning electromagnetic pulses, the electric fields radiated from multiple lightning return strokes were measured and analyzed statistically. The electric field measuring system consists of a hemisphere antenna of 30cm in diameter, integrator and data acquisition device, and its frequency bandwidth ranges from 200Hz to 1.56MHz, and the sensitivity is 0.96㎷/V/m. The electric field signals are digitized every 200ns with the transient signal analyzer having the resolution of 12-bit and the recording length of 5 kilowords and are registered at personal computer. As a result, the electric fields produced by the first return stroke begin with a slow initial part or front, which starts just after or during the last stepped leader. On the average the rise times of the electric fields for the positive first, second and third strokes are 4.21${\mu}\textrm{s}$, 3.94${\mu}\textrm{s}$ and 2.75${\mu}\textrm{s}$, respectively, and those for the negative first, second and third strokes are 3.46${\mu}\textrm{s}$, 3.15${\mu}\textrm{s}$ and 2.79${\mu}\textrm{s}$, respectively. The zero-crossing times of the electric fields for first return strokes range from about 10 to 80${\mu}\textrm{s}$. The mean zero-crossing times for subsequent return strokes are shorter than those for first lightning return strokes.

• 정보처리학회논문지C
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• 제8C권6호
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• pp.741-756
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• 2001

컴퓨터 시스템의 발달에 따라, 시스템에 대한 새로운 악성 프로그램의 위협이 급속히 증가하고 있다. 이러한 위협들에 대하여, 현재 컴퓨터 백신 프로그램이 널리 사용되고 있으나, 알려지지 않은 새로운 유형의 악성 프로그램을 발견하는 것이 어렵다는 것과 악의적 행위가 수행되기 전에 악성 프로그램을 발견하는 것이 항상 가능하지는 않다는 약점을 지니고 있다. 그리고 기존의 개인 컴퓨터 보안 시스템은 효율적인 보안 모델의 부재로 인하여 정상적인 사용자 행위임에도 불구하고 많은 False-positive 경고가 발생하는 문제점이 있다. 따라서 악성 프로그램에 대한 백신 프로그램과 개인 컴퓨터 보안 시스템의 제약점을 보완하기 위하여, 다양한 악성 프로그램에 의한 위협들을 신속하게 발견하고 대처할 수 있는 개선된 보안 프로그램의 개발이 중요하게 되었다. 본 논문에서는 컴퓨터 시스템에 대한 각종 위협을 커널 레벨에서 실시간으로 필터링 하고 대처할 수 있는 개선된 보안 모델의 설계와 보안 프로그램의 설계 및 구현에 대해 기술하였다.