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최도영,정상립 대한피부과학회 1978 大韓皮膚科學會誌 Vol.16 No.4
Darier's disease is a congenital dyskeratosis and is as an autosomal dominant trait but a case with a family history is relatively rare and only 2 such cases have been reported in Korea. We present typical Darier's disease occuring in a mother and her 2 daughters. A 45 year-old female has shown muitiple, confluent, dirty verrucous keratotic papules on the seborrheic area and whitish papules on the sotf palate since the age of 7 year-old. Histologically there, are corps ronds, grains and suprabssal lacunae in the epidermis.
최도영,홍의선,양태훈,정흥조,이재욱 한국화학공학회 2007 화학공학의이론과응용 Vol.10 No.1
Activated carbon has been extensively used to purify indoor air and industrial gas streams containing a variety of organic chemicals and pollutants. Water vapor is frequently present at high levels in the atmosphere and may influence the adsorption properties of activated carbon. The presence of water vapor can have a severe negative influence on the adsorption behaviour of activated carbon filters. Moreover, water adsorption in activated carbon has been one of the most important problems for the removal of VOCs from air. Thus, in this study, the competitive adsorption properties including adsorption equilibrium and column dynamics of TCE and water vapors on a hydrophobic activated carbon were investigated. TCE was chosen as a representative of VOCs.
최도영,윤영현,오정환,이승은 대한전자공학회 2019 전자공학회논문지 Vol.56 No.12
Controller Area Network (CAN) is the most commonly used communication protocol for In-Vehicle Network. CAN protocol has proper properties for In-Vehicle Network in terms of cost and reliability. As Electronic Control Units (ECUs) loaded on vehicles are increasing recently, new communication protocols are required to reduce the burden on the CAN bus. Compared to the CAN protocol, Controller Area Network with Flexible Data rate (CAN-FD) has higher transmission rate and payload. These advantages make response time of electronic devices shorter by reducing the loads of CAN bus. CAN-FD is also easy to maintain as CAN and CAN-FD are compatible with each other. In this paper, we propose CAN-FD Controller with 8 Mbit/s transmission rate. Our CAN-FD Controller is designed in accordance with ISO-11898 international standard and we verified the CAN-FD Controller by implementing on Field Programmable Gate Array (FPGA). Also we measured and verified whether the CAN frame is in accordance with the standard by using CAN hardware scope and software. We expect that the proposed high-speed CAN-FD Controller will contribute to advanced communication among multiple ECUs. Controller Area Network (CAN)은 차량 내부 네트워크로 가장 많이 사용되는 통신 프로토콜이다. CAN 프로토콜은 비용, 신뢰성 측면에서 차량 내부 통신으로 적합한 특징을 지니고 있다. 하지만 최근 들어 차량에 적재되는 Electronic Control Unit (ECU)이 증가하게 되면서, CAN bus의 부하를 줄일 수 있는 새로운 통신 프로토콜이 필요하게 되었다. Controller Area Network with Flexible Data rate (CAN-FD)는 CAN과 비교했을 때, 전송 속도가 빠르고 전송량이 크다는 장점을 갖고 있다. 이러한 장점은 CAN node들이 공유하는 CAN bus의 부담을 줄여 차량 내부 전자 장치의 동작 반응 시간을 단축시킨다. 또한, CAN과 CAN-FD는 서로 호환 가능하기 때문에 유지보수가 편리하다는 장점이 있다. 본 논문에서는 8 Mbit/s 통신 속도의 CAN-FD 컨트롤러를 제안한다. 제안한 CAN-FD 컨트롤러는 ISO-11898 국제 표준을 준수하여 설계되었으며, Field Programmable Gate Array (FPGA)를 통해 기능을 검증하였다. 또한 CAN 통신 hardware scope와 software을 사용하여 CAN-FD 컨트롤러의 출력 frame을 측정하고 국제 표준에 맞는 frame임을 검증하였다. 제안하는 CAN-FD 컨트롤러는 차량 내 ECU 간의 향상된 통신을 구축하는데 일조할 것으로 사료된다.