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송명준,김진규,최명진 경희대학교 산학협력기술연구원 2010 산학협력기술연구논문집 Vol.16 No.-
The crash safety of passengers is one of the most principal issues in developing a new car. The manufacturers of automobiles have much interest on the rear impact, in the process of the development of a new car. Many engineers have recognized that the seat give some effects on the passengers in rear crash and some factors related to the rear impact were also studied. In this study, deformation, energy absorbent, and acceleration of the seat of a passenger' s car were investigated in case of rear impact.
宋明俊 충남대학교 의과대학 지역사회의학연구소 1980 충남의대잡지 Vol.7 No.2
This study was attempted to evaluate the relationship between fetal maturity and accelerated clotting time by amniotic fluid. The author observed the accelerated clotting time obtained by adding 1.5 ml of pregnant woman's blood to 1.0 ml of amniotic fluid of 18 to 45 weeks gestation and compared with control groin used. The results are as follows : 1. Amniotic fluid had the capacity of accelerating the blood clotting time (P<0.001). 2. Clotting time was accelerated proportionately with the gestational age and its correlation was y=209.5-3.7x. (y=clotting time(sec), x=gestational weeks) Relation coefficient(r)was 0.8. 3. Amniotic fluid from intrauterine fetal death cases showed much more accelerated clotting time. 4. There was no relationship between fetal respiratory distress and accelerated clotting time. 5. There was no distinct relationship between fetal body weight and accelerated clotting time.
송명준,박영호,유석준,심동현,Song, Myung-Jun,Park, Yung-Ho,Yoo, Seok-Jun,Sim, Dong-Hyun (사)한국토질및기초기술사회 2006 기술발표회 Vol.2006 No.-
The project comprised the construction of the new oil pier and associated topside facilities and demolition of exiting south pier. The site is located approximately 33km south of Kuwait city at MAA refinery. The approach trestle and berth structures of the new oil pier were designed to be supported by steel tubular piles Total 2,480 numbers of piles(795 piles at Approach Trestle, 1187 piles at Berth 1 -4 and 498 piles at Berth 5-6) had to be driven through the calcareous silty sand In this study, the design procedures for offshore steel pipe piles, evaluation for the compression and tension capacities by static and dynamic load test and effective driving criteria by the final set values are discussed
추력편향 노즐의 다분력 시험장치 보정에 관한 실험적 연구
송명준,조용호,이열 한국항공우주학회 2012 한국항공우주학회 학술발표회 논문집 Vol.2012 No.4
이차 유동의 코안다 효과를 이용한 유체역학적 추력제어 방법의 성능특성을 정량적으로 관찰할 수 있는 다분력 시험장치가 설계되었고, 아울러 이러한 시험장치에서 발생되는 측정오차를 줄일 수 있는 보정 및 자료획득 방법이 제시되었다. 다양한 하중 조건에서 시험장치의 정렬오차 등으로 발생하는 로드셀 신호의 상호간섭 정도가 정량적으로 관찰되었다. 그 결과 독립하중에 대한 최대 측정오차는 약 5% 미만으로 관찰되어, 본 연구에서 설계한 시험장치의 계측 정확도가 우수한 것으로 판정되었다. A multi-component force measurement device was designed to quantitatively evaluate the performance-characteristics of the fluidic thrust vector control utilizing coanda effects of secondary jet. Details of calibration and data analysis procedures to reduce measurement errors in the test device were also described. Cross-talks between load-cell signals introduced by misalignments of the device were examined for various loads. It was shown that the maximum measurement error was less than 5% for independent loads, which proved the good accuracy of measurement of the present test device.