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崔元銀,張宜久 중앙대학교 기술과학연구소 1981 기술과학연구소 논문집 Vol.8 No.-
The properties of Schottky barrier solar cell on n-type silicon have been investigated. Naturally formed insulation layer have been used for the insulating fillm on silicon wafer. The interfacial layer plays an important role in reducing the open circuit voltage and the efficiency of the solar cell. Measurement have been made of the electrical and optical properties of Au-nSi solar cells. It is shown that the efficiency of the cell increase at first with the interfacial layer thickness δ, and after acquiring a maximum value falls with a further increase of δ
최원일,전성곤,김덕문,최은화 한국방재학회 2012 한국방재학회 학술발표대회논문집 Vol.11 No.-
본 연구에서는 경복궁, 숙정문, 창경궁, 창덕궁 등의 중요한 건축문화재가 위치하고 있는 서울특별시 ○○산 일대를 연구지역으로 선정하여, 지진에 의한 변위량 해석에 이용되는 Newmark displacement model(뉴마크 변위 모델)을 통해 지진시 산사태 위험지 예측을 실시하였다. 또한 산사태 발생 시 토석류의 흐름 양상을 예측하고, 산사태가 산지 부근에 위치하고 있는 문화재에 미치는 영향을 분석하였다.
최원아,신지철,이두연,김동현,김선도,강성웅 대한재활의학회 2010 Annals of Rehabilitation Medicine Vol.34 No.5
Objective: To verify the safety and clinical utility of noninvasive respiratory management as an alternative method of invasive respiratory management for the patients with cervical spinal cord injury (CSCI) who often present with ventilatory insufficiency (due to inspiratory muscle paralysis) or difficulty in removing airway secretions (because of expiratory muscle weakness). Method: Nineteen patients with CSCI (male: 15, female: 4, mean age: 45.6) were recruited. All of the patients were in need of mechanical ventilation due to ventilatory failure or indwelling tracheostomy tube for secretion management. In order to switch from invasive to noninvasive means of respiratory management, expiratory muscle aids such as manual assist or CoughAassistⓇ and inspiratory muscle aids such as noninvasive ventilatory support were applied to all candidates. Results: Fifteen out of the 19 patients had indwelling tracheostomy tubes, and the remaining 4 patients were intubated via endotracheal tubes at admission. Through the noninvasive respiratory management, we were able to remove intubation or traheostomy tubes for all of the patients. Eleven patients were able to maintain normal ventilation status without ventilatory support, as time went on. The rest 8 patients were continuously in need of ventilatory support, but they could maintain normal ventilation status by noninvasive method. Conclusion: Noninvasive respiratory management is safe and equally effective in treating ventilatory insufficiency or removing airway secretions for patients with CSCI. In cases of long-term ventilator dependency or chronic tracheostomy state, it can be replaced as a creditable alternative to invasive respiratory management. (J Korean Acad Rehab Med 2010; 34: 518-523)