http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
나원기,김성진 국제온돌학회 2015 International Journal of Ondol Vol.2015 No.-
콘덴싱 효과가 적용된 소형의 가스 온수기와 온수 보일러는 중대형 보일러보다 동일 열량에서 규격이 작고 운전효율이 높다. 이러한 소형 열원을 병렬로 연결하면 최적의 설계 열용량을 구현할수 있고 설치 공간이 절감되며 운전효율이 높다. 이를 캐스케이드 시스템이라 하며 건물의 규모와 용도를 고려한 열원 시스템 선택의 폭을 넓히고 소비자의 경제성향상과 더불어 정부의 에너지 정책에 부응하기 위해 대수 제어기등 주변 장비를 개발하여 보급하게 되었다. Small gas water heaters and boilers with condensing effect applied have a smaller size and higher running efficiency at the same calorie, compared to medium and large boilers. When these small heat sources are connected in parallel, optimal design heat capacity can be achieved with less installation space and higher running efficiency. This is called Cascade system which was developed and supplied, along with peripheral equipments such as NCS(Navien Cascade Control System), in purpose of diversifying choices of heat source systems considering the size and use of buildings, improving economics of customers, and fulfilling energy policies of the government.
하이퍼루프 구조물 진단을 위한 임피던스 기반 드론 적용 모니터링
나원기 ( Na Wongi ),백종대 ( Baek Jong-dae ) 한국구조물진단유지관리공학회 2017 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.21 No.1
In this study, a drone based structural health monitoring technique is introduced which uses a piezoelectric (PZT) transducer attached to a drone. With the PZT transducer, the electromechanical impedance (EMI) method is modified to be attached and re-attached onto a structure for damage identification. Since one of the possible principle technology is to keep the tube structure safe from damage, the idea introduced in this study opens up new possibilities of monitoring the integrity of the Hyperloop structure.
나원기(La Won-Ki),양방섭(Yang Bang-Sub),이원상(Lee Won-Sang) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
LRT(Light Rail Transit) is called on railway vehicle less weight than general electric railway (middle weight railway vehicle) and classified with monorail, street car, magnetically levitated vehicle, automated guided transit, light rail transit with steel wheel, etc. This paper is descriptive of general specification, structure and development, performance evaluation of bogie for light rail transit with steel wheel on LRT.
나원기(Won-Ki La),양방섭(Bang-Sub Yang),이원상(Won-Sang Lee),장대성(Dae-Sung Chang) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.7
Most of operating railways in domestic, it is used to be Wheel flange lubricator system applied liquid spray type. Wheel flange lubricator are reduced the abrasion of wheel flange through spraying in accordance with operating on the curve or operating function of time base and/or distance base. this paper is written to introduce and study the efficiency for the angular velocity sensing type of lubricant systems.