• 월간산업보건
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• s.370
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• pp.29-40
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• 2019

• Proceedings of the ESK Conference
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• 1996.04a
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• pp.153-159
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• 1996

신경감각적 작업의 대표적인 작업중의 하나인 트랙킹작업을 대상으로 작업전후에 취 하는 휴식방법이 작업시간과 작업자의 각성 레벨에 미치는 영향을 명백히 하기 위하여 피실험자로서 8명의 남자대학생을 선발하여 휴식시간에 bio-feedback법을 5분간 이용, 10분간 이용, 이용하지 않았을 경우의 3종류의 휴식방법을 취하게 한후 작업자의 심신 반응과 작업수행도를 측정하였다. 결과로서 뇌파, 심박수 및 CFF값의 변동에서는 휴식 방법에 따라 작업수행시에 유의한 차를 나타내었고 작업수행도에서도 심신반응 패턴과 상관관계를 보여 주었다. 이러한 결과로부터 본 연구의 대상으로 선정한 Tracking작업 과 같은 신경감각적 작업을 수행할 때의 휴식을 취하는 방법 그중에서도 특히 Bio- feedback법을 이용한 심신의 리럭스제이션에 의한 효과가 작업수행시의 각성 레벨의 저하 방지에 유효하게 작용하며 작업후의 회복효과를 한 층 더 높이는 작용을 한다는 것을 확인할 수 있었다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.551-552
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• 2021

인공지능 기술의 발달로 현대사회 사람들은 일상생활에 편리함을 제공받고 업무의 효율성과 생산성이 향상되었다. 대한민국 보육교사들은 수많은 업무로 인해 근무시간 대비 휴식시간과 점심시간이 턱없이 부족하다. 본 논문에서는 보육교사가 일일이 아동들의 사진을 분류하는 업무에 편의성을 제공하여 보다 많은 휴식시간을 보장받고 활용할 수 있도록 전이학습을 통한 아동 이미지 자동 분류 시스템에 대해 기술하고자 한다. 이 시스템을 통해 분류된 아동들의 사진을 매년 제작하는 유아 포토북 제작에도 활용할 수 있을 것으로 기대된다.

• Journal of the Korean Society of Hazard Mitigation
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• v.6 no.1 s.20
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• pp.39-48
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• 2006

A laboratory investigation was performed to estimate the moduli values of asphalt concrete mixture due to various sinusoidal loadings in compression and tension. Total five modes of loading were used under five testing temperatures of 32, 50, 68, 86, and $104^{\circ}F$ (0, 10, 20, 30, and $40^{\circ}C$); repeated compressive haversine loading with rest period, repeated tensile haversine loading with rest period, cyclic compressive loading, cyclic tensile loading, and alternate tensile-compressive loadings. The test results showed that, due to the repeated haversine loading with rest period, asphalt concrete demonstrated similar moduli in tension and compression at low temperatures,(0 and $10^{\circ}C$) while those moduli were different at high temperatures (20, 30, and $40^{\circ}C$). At high temperatures the compressive moduli were always higher than the tensile moduli. The uniaxial tensile moduli were higher than indirect tensile moduli at low temperatures. However, those moduli were similar at high temperatures. In uniaxial cyclic tension, compression, and alternate tension-compression tests, compressive moduli were higher than tensile and alternate tensile-compressive moduli throughout the temperatures. Generally, the moduli from the repeated haversine loading with rest period were always lower than those from the cyclic sinusoidal loading. The difference in moduli from the repeated haversine loading with rest period and cyclic sinusoidal loading becomes more significant as the temperature decreases.

• 월간산업보건
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• s.211
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• pp.47-49
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• 2005

• The Safety technology
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• no.164
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• pp.6-10
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• 2011

• The Science & Technology
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• no.1 s.452
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• pp.30-31
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• 2007

지난 11월 29일 서울 역삼동 과학기술회관에서 열린 '학회장 간담회'에서 180여 명의 학회장들이 한 자리에 모여 과총을 향해 불만족과 고마움, 궁금증과 개선 방안을 쏟아냈다. 학회장은 휴식시간 없이 2시간 넘게 진행된 간담회 내내 자리를 지키며 격의 없는 이야기들을 털어놓았다.

• Korean Journal of Childcare and Education
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• v.9 no.5
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• pp.335-355
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• 2013

The purpose of this study was to investigate children's recognition and needs about rest and naps at child care education centers, in the view of respecting children's rights. The participants were 40 children(20 4 year olds and 20 5 year olds), attending B Public Child Care Education Center in Seoul. The research methods were accomplished by participant observation in project activities and interviews with semi-structured questions. The collections of this process which were recorded document materials and video materials were analyzed by transcribed method. The results of this study were as follows: First, the meaning of the children's recognized rest showed time for family together, time for fun play, time required when they were very stressful and angry, and time for eating delicious meals. Second, children recognized that nap time in the child care center was time for a forced nap, time for listening to quiet music, and time for feeling good after a nap. Third, as for the needs to take a rest and a nap for children, they wanted to rest when they came together at full day class after their friends had returned home, they wanted a special area except the classroom, and they wanted to be cared for by familiar adults. Based on these results of the study, future research directions were proposed in terms of respecting children's rights of enjoying a rest and a nap.

• Journal of the Institute of Electronics and Information Engineers
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• v.50 no.12
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• pp.254-260
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• 2013

Control signal generated from EEG (electro-encephalogram) can be used in many applications. In our study, for the purpose of developing practical instruments, a single channel system of providing reliable on/off signals was investigated since a multi-channel system can be bulky and expensive. Brainwaves in alpha, beta and theta bands were analyzed in order to extract reliable control signals when the concentration state reached. Rest and concentration states were differentiated based on power spectrum and histogram analysis. A better performance was obtained when the ratio between the beta and theta bands was used compared to the theta band only. In general, the longer the rest period before concentration, the lower success rate was. In addition, longer rest time produced longer detection time. Though there were individual differences, in case of 10-second rest time, a success rate of 91% and a detection time of 20.2 seconds was achieved on average.

• Korean journal of communication and information
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• v.40
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• pp.45-79
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• 2007

This study explored three questions: (1) what are the motives of producing and using user-created contents (UCC, video clips which are produced and uploaded at various web sites by individuals), (2) what are the gratifications that users obtain from UCC, and (3) what are the differences of gratifications according to individual uses of UCC. A survey was conducted to 258 UCC users and data were factor-analyzed to find the dimensions of motives and gratifications. As for the motives of UCC uses, six factors were constructed: self-expression, private life, participation, information retrieval, rest, and entertainment, among which self-expression showed the largest variation. As for the gratifications, five factors were constructed: self-expression, rest, information retrieval, socializing, and entertainment.