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스마트 홈 서비스를 위한 스마트 원격 도어락 제어 모듈
구윤택 ( Yuntack Koo ),신은재 ( Eunjae Shin ),장휘수 ( Gimyung Jung ),정기면 ( Hwisoo Jang ),한현관 ( Hyunkwan Han ),고정호 ( Jeongho Ko ) 한국정보처리학회 2017 한국정보처리학회 학술대회논문집 Vol.24 No.2
최근 ‘도어락 몰카’와 같은 생활 보안범죄가 잇따라 증가함에 따라 해결법으로 판넬에 비밀번호를 직접적으로 입력하지 않는 방식을 아이디어로 채택하여 도어락의 비밀번호 유출위험과 판넬에 직접 입력하는 번거로움을 없이 도어락을 열 수 있는 방식을 도입하고자 한다. 원격으로 제어 하는 방식은 해킹의 위험이 있으므로 보안모듈을 도입하여 해킹의 위험을 감소 시키는 방법을 연구하고자 한다. 이를 위해 암호화 모듈, 아두이노의 블루투스 및 Wi-Fi통신, 모터를 이용한 도어락 제어를 할 수 있도록 하여 궁극적으론 스마트 홈 서비스를 구축 하고자 한다.
안혜진 ( Hye-jin Ahn ),신은재 ( Eun-jae Shin ),곽민재 ( Min-jae Gwak ),정기헌 ( Ki-heon Jeong ),이무형 ( Mu-hyoung Lee ) 대한피부과학회 2018 대한피부과학회지 Vol.56 No.5
Behcet’s disease is a multisystem inflammatory disorder with a chronic relapsing course. It is considered a nonspecific systemic vasculitis involving both, venous and arterial circulation. Although lower extremity vein thrombosis (LEVT) is one of the most common manifestations of vascular involvement, a few cases are reported in the literature and to our knowledge, and only 2 cases were reported in Korea. We report a case of a 40-year-old Korean man with localized erythematous macules and patches on both lower extremities with a marked painful swelling on the right leg. The patient reported a history of similar lesions 10 years prior to presentation and also a history of recurrent aphthous oral ulcerations. Based on phlebographic findings of old LEVT in the right femoral vein, the patient was diagnosed with Behcet’s disease associated with LEVT. (Korean J Dermatol 2018;56(5):325∼ 328)
25㎜ NSW-ring, pp.를 充塡한 充塡塔에서 암모니아 吸收에 의한 充塡物의 特性硏究
申恩才,朴出在,金彰昊 동아대학교 환경문제연구소 1995 硏究報告 Vol.18 No.1
This study was carried out to demonstrate the superiority of used packing in view of energy saving and efficiency of mass transfer, comparing with conventional packing. The results are as follows : 1. Owing to low pressure drop under high load, 25mm NSW-ring, pp. can cause energy saving. 2. The unique magnitudes of used packing are as follows : C_(G) = 5.78 m = 0.67 n = 0.46 3. Used packing can make high efficiency including energy saving because of low pressure drop per the number of transfer unit. To rate the characteristic of packing, it should be carried out that the measurement of pressure drop per packing height and per the number of transfer unit. This study demonstrated the superiority of used packing by caning out above experiment and could be used as basic reference for design and predicting efficiency of packing tower which is filled with same packing.
25mm NSW-ring, pp. 를 충진한 충진탑에서 암모니아 흡수에 의한 유해가스 처리시 충진물의 특성연구
신은재,박진식,김장호,장성호 한국환경과학회 1997 한국환경과학회지 Vol.6 No.4
The study was carried out to demonstrate the superiority of used packing in view of energy saving and efficiency of mass transfer, comparing with conventional packing. The results are as follows 1. Owing to low pressure drop under high load, 25㎜ NSW-ring, pp. can cause energy saving 2. The unique magnitudes of used packing are as follows C_o=5.78, m = 0.67, n = 0.46 3. Used packing can make high efficiency including energy saving because of low pressure drop per the number of transfer unit. To rate the characteristic of packing, it should be carried out that the measurement of pressure drop per packing height and per the number of transfer unit. This study demonstrated the superiority of used packing by earring out above experiment and could be used as basic reference for design and predicting efficiency of packing tower which is filled with same packing.