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N. megalosiphon에서 유래된 세포질적 웅성불임 향초의 특성
이승철,금완수,진정의,조명조,정윤화,이정덕,Lee, S.C.,Kum, W.S.,Jin, J.E.,Joh, M.J.,Jeong, Y.H.,Lee, J.D. The Korean Society of Tobacco Science 1982 한국연초학회지 Vol.4 No.1
Cytoplasmic male- sterile Hyangchio, derived from male- sterile Burley 21 containing N. megalosiphon cycloplasm, and male- fertile Hyangchio (Korean local aromatic variety) were evaluated in replicated pot trials in green-house. Male- sterile Hyangchio was comparable to the male- fertile Hyangchio for six agronomic traits and total alkaloids content. The only significant difference was that the male- sterile Hyangchio flowered 2.3 days later than the male- fertile Hyangchio. M ale- sterile Hyangchio has increased the yield than the male- fertile Hyangchio significantly in case of non- topped.
굴삭기용 선회 모터의 가속시 소음 진동 개선을 위한 밸브 플레이트의 설계에 관한 연구
이승현(S. H. Lee),진정만(J. M. Jin),소순재(S. J. So) 유공압건설기계학회 2016 유공압건설기계학회 학술대회논문집 Vol.2016 No.11
Flow and pressure ripple in swash plate type piston motors is largely dependent on the design of notches. The basic design concept for notches in the valve plate could be said to be established for the general solution of flow and pressure ripple In this paper, it was lead theoretical formular to identify the major parameters caused the vibration and noise in the time of accelerating operation for swing motor and proposed the method of solution by return hole in notch of valve plate. also the effect for design of return hole in notch is prooved through the bench test considered inertio load according to excavator operating condition.