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방사선조사된 가토에서 어비윰야그 레이저를 이용한 조사시 수분유무가 골에 미치는 효과
최영옥 ( Young Ok Choi ) , 허영철 ( Young Cheol Hur ) , 정태영 ( Tae Young Chung ) , 이준길 ( Joon Gil Lee ) , 조경안 ( Kyung Ahn Cho ) , 이철우 ( Cheol Woo Lee ) , 김수흥 ( Soo Heung Kim ) , 안영재 ( Young Jae Ahn ) , 오선영 ( 조선대학교 구강생물학연구소 2003 Oral Biology Research (Oral Biol Res) Vol.27 No.2
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방사선조사된 가토에서 어비윰야그 레이저를 이용한 조사시 수분유무가 골에 미치는 효과
최영옥 ( Young Ok Choi ),허영철 ( Young Cheol Hur ),정태영 ( Tae Young Chung ),이준길 ( Joon Gil Lee ),조경안 ( Kyung Ahn Cho ),이철우 ( Cheol Woo Lee ),김수흥 ( Soo Heung Kim ),안영재 ( Young Jae Ahn ),오선영 ( Seon Young Oh ) 조선대학교 구강생물학연구소 2003 Oral Biology Research (Oral Biol Res) Vol.27 No.2
이성현(Seong-Hyun Lee),박종원(Jong-Won Park),허영철(Yung-Chul Hur) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11
In this paper, the vibration based condition monitoring and residual life prediction system was designed for an cryogenic LNG plant. For the condition monitoring system, system requirements defining for the LNG plant were carried out. Pumps and valves were selected for the target equipment and measuring signals and positions for each machinery were defined. The signal processing algorithm for the machinery fault diagnosis using vibration analysis was developed. For the machinery life distribution DB development, the empirical technique was researched and an accelerated life testing method for valves were suggested. The test chamber for extremely low temperature valve life test was established.
분기구간에서의 차륜/레일 접촉특성 해석에 의한 탈선안전 연구
한형석(Han Hyung Suk),김만철(Kim Man Chul),허현무(Hur Hyun Moo),허영철(Hur Young Chul) 한국철도학회 2006 한국철도학회 학술발표대회논문집 Vol.- No.-
The characteristics of geometric contact between the wheel and rail on the turnout must be precisely investigated to limit the speed of trains at a turnout. The characteristics of the contact have an effect on the derailment of trains at a turnout and maintenance of a turnout. In this paper, an analysis program for characterization of the contact on a turnout is first developed. With the developed program, the characteristics of geometric contact, including the contact during steady state running, were analyzed and discussed for improving the safety of trains.