• Journal of The Korean Association of Information Education
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• v.18 no.4
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• pp.483-490
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• 2014

Smart classrooms have been set up nationwide to utilize smart devices for teaching and learning in the knowledge- based society, As this trend might quickly spread, we have investigated the utilization levels, and issues around the facilities from the experienced teachers. In order to study the impact of easy access to smart devices, the teacher sampling groups were divided into two: one teacher group responsible for smart classrooms and the other group teaching in ordinary classrooms. Survey questions dealt with teacher needs analyses, their expectation of their students' attitude changes, their satisfaction and utilization levels of smart devices currently built in classrooms. The results showed us that teachers have vague expectation about the smart devices and want more highly applicable devices for instruction, improvement of their compatibility with other multimedia devices or applications as well as to improve the resolution of electronic boards. and basic functions of information search and videos that they use everyday.

• Journal of Digital Convergence
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• v.19 no.12
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• pp.523-530
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• 2021

The study is purposed to investigate the current status of assistive technology devices(ATDs) and to explore ways to improve the ATDs support system for work. As a method, domestic and foreign systems were investigated to derive implications can be applied in Korea based on the analysis framework that compromised Gilbert and Terrell's policy analysis model and research purpose. Next, a survey was conducted on 202 disabled supported ATDs for Work. They were looking for a job or working. We would like to suggest a plan as follows. First, it is necessary to improve the support process centered on consumers. Second, the expansion of items and supplementation of the quality management system should be considered. Third, it is urgent to expand the application qualifications. Finally, the foundation for improvement should be continuously laid. We expected the direction of improvement of the support system will be established.

• The Optical Journal
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• s.156
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• pp.41-51
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• 2015

생명공학기술(BT)과 정보통신기술(IT)의 융합으로 모바일 의료기기가 최근 빠른 속도로 발전 하고 있다. 작년부터 시작된 헬스케어 웨어러블 디바이스의 열풍은 IT기업의 헬스케어 시장 진입을 촉진하고 있으며, 스마트폰의 보급으로 인해 의료기기의 활용도와 편리성이 비약적으로 향상되고 있다. 각각의 영역에서 발전하던 의료기기와 스마트기기는 이제 모바일 의료기기라는 하나의 시장에서 만난다. 의료진을 중심으로 개발되던 의료기기는 소비자의 관점에서 재조명되어 보다 유용한 기기로 탈바꿈하고 있다. 단순한 건강관리에서부터 중증질환의 치료에 이르기까지 모바일 의료기기가 제공하는 스마트 헬스케어 솔루션이 중요한 역할을 할 것으로 기대된다. 본 보고서는 최근의 바이오 기술과 헬스케어 스마트기기의 발달을 살펴보고, 모바일 의료기기가 가져올 스마트 헬스케어의 가능성과 극복해야 할 장애물에 대해 분석하였다. 특히 ICT 융합산업이 직면하게 되는 이종 산업의 속성 차이를 이해하는데 주안점을 두었다.

• NEWSLETTER 전기공업
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• no.98-16 s.209
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• pp.2-18
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• 1998

• The Optical Journal
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• v.14 no.3 s.79
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• pp.58-61
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• 2002

• The Optical Journal
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• s.85
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• pp.68-72
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• 2003

• The Optical Journal
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• v.2 no.8 s.8
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• pp.66-71
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• 1990

• Cement Symposium
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• no.27
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• pp.123-129
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• 2000

• Journal of rehabilitation welfare engineering & assistive technology
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• v.7 no.2
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• pp.133-138
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• 2013

This study was aimed to examine effects of the assistive technology program that has purpose to maintain and promote employment of persons with disabilities. An administrative data constructed by the Korea Employment Agency for the Disabled(KEAD) was utilized. Propensity score matching were used as analysis methods to minish sample selection bias caused by nonrandom sampling. As a result, turnover rate of people with disabilities who used assistive technology device was lower compared to persons with disabilities did not use assistive technology device. Also, in terms of company, for employment promotion effect on the persons with disabilities, company that provided assistive technology device was higher than that of company did not provide assistive technology device. Finally, assistive technology devices were effective in the employment area was confirmed.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.11
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• pp.2015-2021
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• 2017

Recently, a lot of attention is fallen to IoT(Internet of Things) for hyper-connected society and the number of unlicensed wireless device has been increasing. Thus, this paper analyzed the impact of unlicensed wireless device on the basis of 802.11ah on licensed LTE user equipment in 900 MHz frequency band for efficient frequency use. As the interference analysis method, Minimum Coupling Loss (MCL) method and Monte Carlo (MC) method were used. In case of one interferer, minimum separation distance between interferer and victim was calculated as about 22 m through the MCL method under the assumption of the worst case. The maximum number of interferer to meet the interference probability of 5% below within a cell radius of the victim was computed as about 3000 by using MC method based on statistical technique. The analysis method and results in this paper are expected to be used for the coexistence between unlicensed wireless device and licensed wireless device.