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엘리베이터구동용 영구자석형 동기전동기의 속도제어에 관한 연구
유재성(J.S.Yu),김이훈(L.H.Kim),최기준(G.J.Choi),윤관철(K.C.Yoon),정무택(M.T.Jung),김연충(Y.C.Kim),이상석(S.S.Lee),원충연(C.Y.Won) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(1)
This paper presents the speed control of the surface-mounted permanent-magnet synchronous motors (SMPMSM) for the elevator drive The elevator motor needs to be a compact and slim type Essentially, the proposed scheme uses a vector control algorithm for a speed and torque control This system is implemented using a<br/> high speed 32-bit DSP (TMS320C31-50), a<br/> high-Integrated logic device FPGA (EPF1OK10-TI144-3)to design compactly and Inexpensively<br/> The proposed scheme is verified through digital simulation and experiments for a three-phase 133kW SMPMSM as a MRL(MachineRoomLess) elevator motor in the laboratory finally, experiment of the test tower was performed with a 48kW PWM converter-Inverter system for a high-speed elevator
돈분뇨 고액분리액 시용에 따른 혼파초지의 생산성과 토양화학적 특성의 변화
김원호,신재순,이혁호,류종원,최기준,임용우,김기용,이기종 한국축산학회 1999 한국축산학회지 Vol.41 No.4
This experiment was carried out to determine the effect of the swine liquid manure separated its slurry on the dry matter yield, botanical composition and soil characteristics at pasture. The results obtained at National Livestock Research Institute(RDA), in Suwon from 1994 to 1997 are summarized as follows; The dry matter yields of swine slurry nitrogen 100%(T3), 75%(T4) and 50%(T5) were showed 94%, 91% and 75% of chemical fertilizer(T2)'s yield, respectively. and it was not significant difference between the yield of chemical fertilizer(T2) and swine liquid manure(50%)+chemical fertilizer(50%). According to application of swine liquid manure, the weed ratios of its plots were lowed by increasing its coverage and grasses. We conclude that the application of swine liquid manure(50%)+chemical fertilizer(50%) can be applied on grassland without adverse effect on dry matter production, quality of herbage, soil chemical properties.
약(葯)배양 기법 이용한 이탈리안 라이그라스 식물체 생산
김기용,강경민,최기준,임용우,장요순,성병렬,손대영,이병현,조진기 Plant molecular biology and biotechnology research 2002 Plant molecular biology and biotechnology research Vol.2002 No.-
We obtained regenerated Italian ryegrass (Lolium multiflorum Lam.) plants by anther culture. When Italian ryegrass anther was incubated for 20 days on callus induction medium, MS medium containing 30 g/ℓ of NAA and 1 mg/ℓ of kinetin its callus was induced. The ratio of callus induction was 9.2 %, the mean of callus weight was 8.6 mg/callus/anther. When Italian ryegrass callus was incubated for 50 days on plant regeneration medium, MS medium containing 30 g/ℓ of sucrose, 1 mg/ℓ of NAA and 2 mg/ℓ of kinetin, Italian ryegrass plant was regenerated. The ratio of plant regeneration was 26%.