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김영기(Y.K. Kim),엄대식(D.S. Eom),김영란(Y.R. Kim),홍찬희(C.H. Hong),김영구(Y.G. Kim),목형수(H.S. Mok) 전력전자학회 2011 전력전자학술대회 논문집 Vol.2011 No.7
This paper developed 110㏄ class electric motorcycle using IPMSM. First, Tractive effort calculated by considering the driving environment of motorcycle. And accordingly the motor and inverter were designed and manufactured. It was mounted on motorcycles and test result was compared with the output power of motorcycle with an internal combustion engine.
김완두(W. D. Kim),우창수(C. S. Woo),이학주(H. J. Lee),정승일(S. I. Jung),김석원(S. W. Kim),김영구(Y. K. Kim),최경진(K. J. Choi),이동형(D. H. Lee) 한국철도학회 2000 한국철도학회 학술발표대회논문집 Vol.- No.-
An air spring was accepted for rail vehicle secondary suspension to reduce and absorb the vibration and the noise. The air spring for the electric railway was developed with domestic technology, which consisted of a cord reinforced rubber bellows, a upper plate, a lower plate and a stopper rubber spring. The fatigue test was conducted in laboratory by using servo hydraulic fatigue testing system to verify the durability. And to guarantee the adaptation of this air spring, the ride comfort and the air pressure variation were measured in train test on Boondang line.
뽕잎중(中) 유기인계농약(有燐燐系農藥)의 잔류성(殘留性)과 잠독성(蠶毒性)에 관(關)한 연구(硏究)
오병렬,김영구,박영선,이병무,백현준,Oh, B.Y.,Kim, Y.K.,Park, Y.S.,Lee, B.M.,Paik, H.J. 한국환경농학회 1984 한국환경농학회지 Vol.3 No.1
기린계(有機燐系) 살충제(殺蟲劑)인 dichlorvos 유제(乳劑)(50%), fenthion 유제(乳劑)(50%), fenitrothion 유제(乳劑)(50%) 및 phenthoate 유제(乳劑)(47.5%)의 뽕잎중(中) 잔류성(殘留性)과 이들 잔류수준(殘留水準)이 누에에 대한 사충률(死蟲率) 및 수견양(收絹量)에 미치는 영향(影響)을 조사(調査)하기 위하여 무강우조건하(無降雨條件下)에서 포장시험(圃場試驗)을 실시(實施)하였다. Fenitrothion, fenthion, phenthoate의 뽕잎중(中) 반감기(半減期)는 $2{\sim}3$일(日)의 범위(範圍)이었고 dichlorvos는 8시간(時間) 내외(內外)이었다. 뽕나무의 재배시기별(栽培時期別) 뽕잎중(中) 농약잔류기간(農藥殘留期間)은 봄재배(栽培)의 경우(境遇)가 가을재배(栽培)보다 길었다. 누에에 안전(安全)한 적엽전(摘葉前) 농약철포(農藥撤布) 완료일(完了日) 은 dichlorvos유제(乳劑)는 3일(日), fenitrothion유제(乳劑)는 20일(日), fenthion유제(乳劑)와 phenthoate유제(乳劑)는 15일(日)이었다. 뽕잎중(中) 농약잔류수준(農藥殘留水準)으로부터 누에의 사충률(死蟲率)을 예측(豫測)할 수 있는 각약제(各藥劑)의 관계식(關係式)과 누에에 안전(安全)한 뽕잎중(中) 농약(農藥)의 최대(最大) 잔유허용량(殘留許容量)을 설정(設定)하였다. The present study was aimed to investigate persistence of dichlorvos EC, fenitrothion EC, fenthion EC, and phenthoate EC in and on mulberry leaves with special reference to silkworm mortality and cocoon production under greenhouse condition. The halflives of fenitrothion, fenthion, and phenthoate in and on mulberry leaves were ranged from two to three days, while that of dichlorvos was less than 9 hours. The insecticide residues in and on mulberry leaves persisted longer in spring cropping season than in autumn cropping season. Elapsed periods from last application of each insecticide to leaf harvest for silkworm feed and maximum residue limits for safe cocoon production as well as relations between insecticide residues in and on mulberry leaves and silkworm mortality were produced.