• Journal of IKEEE
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• v.25 no.2
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• pp.291-301
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• 2021

OPC UA at the control and field level does not provide enough performance to replace the field bus. The OPC Foundation aims for a real-time and connection-less mechanism, and has added the OPC UA publish-subscribe model, a new specification that supports broker functions such as MQTT and AMQP, as the OPC UA Part 14 standard. This paper is about a gateway for interoperability between OPC UA publisher with the addition of OPC UA Part14 standard and DDS subscribers. Raspberry Pi 4 is used for the gateway proposed in this paper, and OpenDDS, an open source, is used for DDS. OPC UA publish-subscribe module used A-Open62541 publish-subscribe module, which additionally implements functions not provided by the corresponding source based on Open62541 publish-subscribe open source.

• Journal of the Health Care and Life Science
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• v.8 no.2
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• pp.105-111
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• 2020

This study analyzed NCS-enabled Web services at colleges. The search scope was based on the NCS Support Center, etc. of the two domestic and one overseas portal sites. Support for the NCS Support Center web service from 12 Junior Colleges was analyzed after the search. There were three categories of NCS-enabled Web services. First, NCS-enabled service status analysis, second, NCS-enabled project status analysis, and third, junior college-specific differentiated NCS-enabled web service analysis were conducted. As a result, NCS-enabled services had more quantitative web pages than NCS-enabled project status services. However, NCS-enabled project status services have been presented with more detailed and practical data than NCS-enabled services. Differentiated Web services were able to analyze what included efforts to maximize NCS Web service support for each Junior College. Based on the results of this study, we look forward to improving the quality of NCS-enabled web services for Junior College education.

• Journal of the Health Care and Life Science
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• v.8 no.2
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• pp.121-125
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• 2020

People counting has always been a method of interest for maximizing energy saving by identifying the congestion level or amount of use of a specific facility to efficiently manage the facility, or automatically implementing a power saving function by identifying the number of people entering and exiting a specific place such as a toilet. The method of counting people by image processing is very expensive and has the disadvantage of being severely affected by the surrounding environment of the lighting. In the case of the area sensor, there is a disadvantage of counting as one person when the number of people passes close with arms folded. In order to solve the existing method, which is expensive, affected by lighting, or inaccurate the number of people in certain cases, this paper proposes a new method of counting people using the principle of LiADAR. Accurate counting of the number of people entering the hospital will help manage hospital facilities, but it will also help to establish effective quarantine measures at the present time when Corona 19 is prevalent.

• Journal of the Korea Society of Computer and Information
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• v.26 no.3
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• pp.19-28
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• 2021

Esophagogastroduodenoscopy is a method commonly used for early diagnosis of upper gastrointestinal lesions. However, 10-20 percent of the gastric lesions are reported to be missed, due to human error. And countries including the US, the UK, and Japan, the World Endoscopy Organization (WEO) suggested guidelines about essential gastrointestinal parts to take pictures of so that all gastric lesions are observed. In this paper, we propose deep learning techniques for classification of anatomical sites, aiming for the system that informs practitioners whether they successfully did the gastroscopy without blind spots. The proposed model uses pre-processing modules and data augmentation techniques suitable for gastroscopy images. Not only does the experiment result with a maximum F1 score of 99.6%, but it also shows a error rate of less than 4% based on the actual data. Given the performance results, we found the model to be explainable with the potential to be utilized in the clinical area.

• Journal of Convergence for Information Technology
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• v.11 no.1
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• pp.156-166
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• 2021

The purpose of this study is to find out the impact of classes using a game-based student response system on learning engagement. It is an experimental study that compares learning engagement in classes (experimental groups) and lecture-style classes (comparative groups) that utilize GSRS in nursing education. A total of 211 nursing students participated from October 2019 to December 2019. The differences in learning engagement between the two groups were analyzed as t-test and correlation analysis was conducted on related factors. There was a difference between the comparison group and the experimental group in overall learning engagement(p=.013) and emotional engagement(p=.002). This is meaningful in that it has verified the learning engagement effect of the GSRS for the first time in Korea.

• Journal of the Korea Society of Computer and Information
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• v.25 no.12
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• pp.315-320
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• 2020

The purpose of this study is to analyze and interpret the current situation of private security companies·guards for the past three years, security companies by size, general·special (new education), and qualification system provided by the Police Agency, Security Association, etc. It provides a theoretical foundation for private security and provides a new perspective for interpreting private security. As a result, through the current situation, this private security has a concentration of metropolitan area and facility security, an abnormal personal protection company contrast, the number of personal protection institutes, there is a special security shift to regular jobs, and the current continuous education On the other hand, the education of special security guards has been shown to be limited. In the qualification system, the utilization of security instructor qualifications and the utilization and public relations of personal probation officer qualifications will appear. The current state of typical private security is as follows. The first is the balanced development of private security and the clarity of business divisions. Second, the quality of private security education and educational institutions must be high. Third is the recognition of the qualification system and active public relations.

• The Journal of the Korea Contents Association
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• v.21 no.8
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• pp.478-488
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• 2021

This study analyzes the change in the contribution of the elderly to income inequality by using the Gini coefficient and the decile distribution ratio from the data of the Korea Welfare Panel Survey from 2007 to 2018 on economic inequality in old age. According to the study, the Gini coefficient of total income gradually decreased from 0.430 in 2007 to 0.383 in 2018. As a result, inequality decreased. Also, the higher the income quintile, the higher the income growth rate. Market income inequality has increased and inequality between public and private transfer income has decreased. Analysis of the contribution of income inequality to total income confirmed that public transfer income has replaced the role of private transfer income in reducing inequality over time. The expansion of public transfer income for the maintenance of basic living of the elderly is an important source of income for the elderly despite the crowding-out effect of private transfer income, market income, public and private transfer income, which are components of the income structure of the elderly, mutually complement total income. Therefore, it is important to identify income sources that contribute to alleviating income inequality among the elderly and reflect them in policy-making process.

• Journal of the Korea Convergence Society
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• v.12 no.7
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• pp.329-336
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• 2021

This study attempted to present the direction that nursing should have for the future nursing development by looking at the process of trying to protect the subjectivity of nursing in various events during the Japanese colonial period. In the early days of modern nursing, from 1910 to 1919, nursing education institutions were expanded and nursing-related systems were created. From 1920 to 1937, as a development of modern nursing, not only expanded the field of nursing, but also revised nursing-related laws and organized two nursing associations. From 1939 to 1945, the stagnation period of modern nursing, amidst the social disaster of war, a training policy for mobilizing war personnel was unfolded, and another change was experienced. In order to expand the field of nursing and continue to develop it, continuous interest and research on the role and spread of nursing that change in various social events from the past to the present are needed.

• Journal of the Health Care and Life Science
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• v.9 no.1
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• pp.51-60
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• 2021

This study was conducted to identify the perceived stress, self-esteem and clinical practice stress of nursing students and how these variables affect clinical practice stress. Participants consisted of 164 nursing students who were in the third and fourth years who had experienced clinical practice at two nursing universtities located in Gyonganam and Jeonnam, and agreed to the survey. Data were collected using questionnaires form April 1 to April 30, 2021. Collected data were analyzed using the SPSS 22.0 Win statistics program with descriptive statistics, an t-test, ANOVA, scheffe's test, and multiple regression. The study found that clinical preactice stress was positively correlated with perceived stress but negatively correlated with self-esteem and the factors affecting clinical practice stress wre perceived stress, self-esteem, major satisfaction and interpersonal relationships and their explanatory power was 27.0%. This suggests that it is necessary to develop and apply a program to reduce perceived stress and improve self-esteem in order to reduce clinical practice stress of nursing students.

• Journal of Korea Game Society
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• v.21 no.3
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• pp.133-146
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• 2021

The aim of this study was to investigate the psychological characteristics of Korean esports athletes. We investigated the psychological characteristics of 40 professional esports players and 72 amateur esports players, a total of 112 esports players. Specifically, we investigated the differences in emotional well-being, interpersonal relationships, and sleep between professional players and trainee players. Professional esports athletes showed higher responsiveness to social conflict and more interpersonal non-acceptance compared to the trainees. Results also indicated high levels of insomnia severity. Based on the results, the need for psychological intervention and sleep intervention for athletes were discussed.