• The Journal of the Korea Contents Association
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• v.18 no.6
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• pp.131-143
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• 2018

The purpose of this study is to investigate whether ego-resilience has mediating effects on the relationships between elementary school student's smartphone dependence and attention. This study was conducted on 326 5th grade elementary school students in Gimhae city, and SPSS 24.0 program was used for data analysis. The result of this study was as follows. First, elementary school students' smartphone dependence showed a significant negative correlation with ego-resilience. Second, the elementary school students' smartphone dependence showed a significant negative correlation with attention. Third, as a result of analyzing the mediating effect of ego-resilience on the elementary school students' relationship with their smartphone dependence and attention, the ego-resilience has a partial mediating effect. Based on these results, suggestions were as follows: education for good use of smartphone, establishment and dissemination of family model related to smartphone use, and practical efforts and training to improve ego-resilience.

• Journal of the Korea Convergence Society
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• v.9 no.12
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• pp.449-458
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• 2018

The purpose of this convergence study was to examine whether smartphone addiction predisposition mediated the relationship between perceived stress and health-promoting lifestyle in university students. A total of 332 subjects, recruited from a university in Seoul, participated by completing a survey which included questions about perceived stress, health-promoting lifestyle and smartphone addiction predisposition. As are result of the analysis, perceived stress had a significant positive effect on smartphone addiction predisposition. Perceived stress and smartphone addiction predisposition had significant negative effect on health-promoting lifestyle. Therefore, smartphone addiction predisposition had a mediating effect within the relationship of perceived stress and health-promoting lifestyle. Based on these results, we discussed the necessity of managing the stress and smartphone addiction to improve the health-promoting lifestyle of university students.

• Journal of the Korea Convergence Society
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• v.12 no.5
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• pp.51-60
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• 2021

This study is a descriptive research conducted to identify smartphone addiction and influencing factors of high grades of elementary school students. The subjects were 294 elementary school students in the 4th, 5th, and 6th grades at 31 regional children's centers located in C city. Data were collected from May 13, 2019 to June 10, 2019. For data analysis, frequency analysis, 𝑥²-test, and logistic regression analysis were performed using SPSS Win 23.0 program. The result of the study were 16% in the addiction risk group and 84.0% in the general group. Factors influencing smartphone addiction were smartphone usage time on weekdays(95% CI: 1.263~827.849, p=.036), and main usage time of smartphone(95% CI: 1.028~29.574, p=.046). Therefore, in order to prevent smartphone addiction of high grade of elementary school, it is necessary to develop a smartphone addiction prevention education or nursing intervention program by identifying usage time and main usage time of smartphone.

• Communications of Mathematical Education
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• v.30 no.3
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• pp.309-333
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• 2016

This study is part of app development research based on user centered design which targets silver generation learners. The mathematical contents provided by Senior math application focus on Numeracy issues. In order to finalize the user interface and the mathematical contents which is for developing the mathematic application, teaching experiment was carried out through 9 senior learners. Also CIPP program evaluation model was used for monitoring the result of this teaching experiment. Factors such as 'educational objectives' 'requirement analysis' 'educational environment' 'curriculum' 'learning content' 'learning matter' 'interaction' 'program administration' 'supporting environment' 'satisfaction' 'study result' 'substantiality of learning' were checked and as a result the Senior Mathematic application was developed through these feedbacks.

• Proceedings of the KSME Conference
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• 2007.05a
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• pp.136-141
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• 2007

This paper introduces an artificial neuron which is a nano composite continuous sensor. The continuous nano sensor is fabricated as a thin and narrow polymer film sensor that is made of carbon nanotubes composites with a PMMA or a silicone matrix. The sensor can be embedded onto a structure like a neuron in a human body and it can detect deteriorations of the structure. The electrochemical impedance and dynamic strain response of the neuron change due to deterioration of the structure where the sensor is located. A network of the long nano sensor can form a structural neural system to provide large area coverage and an assurance of the operational health of a structure without the need for actuators and complex wave propagation analyses that are used with other methods. The artificial neuron is expected to effectively detect damage in large complex structures including composite helicopter blades and composite aircraft and vehicles.

• Smart Media Journal
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• v.13 no.1
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• pp.76-85
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• 2024

This study examined the Presence experience, resulting effects, and re-viewing intentions of visitors to experiential exhibition content. For this purpose a survey was conducted targeting 246 visitors to experiential exhibition content based on Hyecho's travel story and SilkRoad cultural heritage. As a result of the survey, understanding and interest in the content material and similar exhibition viewing experience did not affect Presence experience. In addition the higher the Presence experience of exhibition content, the greater the awareness and emotion that is the effect of Presence. And among the effects of Presence, emotion had a positive effect on revisiting intentions. Therefore, it was confirmed that future experiential exhibition contents require planning, production, and exhibition that allow users to experience Presence.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.10
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• pp.2294-2300
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• 2013

As smartphones have become widely used, topics of smartphone become a hot research subject in IT technologies. Many applications have been developed for the smartphone and the application market has become more and more increasing. However here are few studies or application developments on Korea's traditional games. In this paper we developed Korea's traditional board game Gonu. People who are young or old can play the game. We expect that many applications which related with Korean culture are developed on the smartphone environment.

• Proceedings of the Korean Society of Computer Information Conference
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• 2020.01a
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• pp.157-158
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• 2020

현대는 4차산업 혁명 시대로 정보 통신 기술(ICT)의 융합으로 다양한 분야에서 기술 혁신이 일어나고 있다 특히, 이 4차 산업혁명의 핵심은 시스템을 자동화 하는 로봇 기술이라고 할 수 있다. 이러한 로봇 기술의 바탕은 시스템에 필요한 데이터 값을 읽어오는 센서 라고 볼 수 있는데 4차 산업혁명 시대에 맞춰 이 센서 역시 많은 종류가 있어 우리 주변에 존재하는 다양한 물리량(온도, 빛, 색, 압력, 전기, 속도 등)을 측정하여 우리가 필요로 하는 데이터 값을 손쉽게 읽어 올 수 있다. 이러한 센서 기술들을 적극 활용해 현대 시대에 뒤쳐진 선풍기를 소재로 하여 선풍기의 모든 시스템을 자동화 하여 사용하는 "스마트 선풍기"를 구현 하고자 한다. 스마트 선풍기의 가동은 선풍기 앞에 사람이 있는지를 판단하여 전원을 가동한다 이를 위해 선풍기 앞쪽에 열상카메라를 장착하여 선풍기 앞에 사람을 인식한다 만약 사용중 자리를 비우게 되면 따로 전원을 끌 필요 없이 센서가 읽는 값에 따라 자동으로 가동을 멈춘다. 또한 열상카메라로 사람이 움직이는지 판단하고 사용자가 움직이고 있다면 방향을 회전하여 해당 방향으로 바람이 가도록 만든다. 바람 세기 또한 온도 센서, 초음파 센서를 사용하여 온도값에 따라, 선풍기와 사람 간의 거리에 따라 바람세기를 제어할 수 있다.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.12 no.5
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• pp.29-37
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• 2017

In this study, real-time monitoring is carried out in the factory site for product quality control such as improvement of productivity through facility automation, improvement of product quality, improvement of factory environment, check of facility maintenance status and check of product defect, And to establish a smart factory for the purpose of protecting the personal environment of the worker. The company is an auto parts company located in the province. The main research content is development of automation and monitoring system of oil filter clipping necessary for smart factory. Smart factory oil filter clipping automation is divided into electric air parts, solenoid valve and other parts processing process. Smart factory quality inspection monitoring system is implemented by server PC and S / W, client software, Operator PC, operating program, and input terminal application. This research data is expected to be very useful data for the auto parts venture companies that are promoting smart factories.

• Journal of the Korea Convergence Society
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• v.9 no.2
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• pp.111-118
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• 2018

This study was to explore the relationship between the smartphone use, school violence attitudes, bullying situation of adolescents in era of convergence. The participants were 341 middle school students from two school in G city. smartphone use, school violence attitudes, bullying situation and general characteristics of adolescents were measured. The data were collected from July 2 to 25, 2014. The collected data were analyzed through t-test, ANOVA, Pearson's correlation coefficients and multiple regression analysis. The result showed smartphone use was positively correlated with school violence attitudes(r=.269, p<.000) and Bullies(r=.251, p<.000). The finding indicate that smatrphone use has an influence on school violence. Intervening approach to prevent and reduce bullying according to each types were required. Based on the research results, this study suggests policy implications for middle school students' smartphone use and school violence attitudes, bullying situation.