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RISS 인기검색어
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- 저자 : 김영규(Y. G. Kim) (검색결과 23 건)
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김영규(Y.G. Kim),엄문광(M.K. UM),김진봉(J.B. Kim),변준형(J.H. Byun) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
The focus of this paper is to investigate the mechanical characteristics of a carbon fiber reinforced BMI matrix composite laminate for high temperature application over 170℃ Comparison tests for the composites made of several resin systems including the BMI were performed to see the property drops at high temperature and to confirm the validity of the composites. All the compo site s were composed of CF3327, the carbon fabric mat from HANKOOK carbon Inc. RTM process was used to make composite laminate plates for specimens. The result shows that the CF3327/BMI composite is adequate for the high temperature application. Several mechanical tests for the CF3327/BMI composites under RTD and ETW conditions were performed according to ASTM test specifications.
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효율개선을 위한 Push-Pull Converter의 동기정류에 관한 연구
김동중(D.J.Kim),김영규(Y.G.Kim),김이훈(L.H.Kim),원충연(C.Y.Won),김규식(G.S.Kim),최세완(S.W.Choi) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(1)
Single winding self driven synchronous rectification(SWSDSR) scheme is based on an addi-winding in the power transformer (auxiliary winding). It allows for maintaining the synchronous rectifiers on even when the voltage in the transformer is zero, which is impossible to do in traditional self-driven approaches. Its technique is verified to Improve the efficiency by experiment In This paper, there are compared self driven synchronous rectification(SDSR) with SWSDSR about the efficiency
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에어컨용 PFC Boost Converter의 전도 노이즈 저감
이성희(S.H. Lee),김이훈(L.H. Kim),김영규(Y.G. Kim),원충연(C.Y. Won),김태덕(T.D. Kim),김대경(D.K. Kim) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(2)
Switching PFC converters are widely used not only to comply the power quality specification but also for maximum efficiency. However switching PFC converters generate serious electromagnetic interference(EMI).<br/> In this paper to solve this problem, we applied the APW(Anti Phase Winding) and RPWM(Ran -dom PWM) technique to PFC boost converter and obtained satisfactory results.<br/> Simulation and experimental results show the improved harmonic and reduced EMI effect in air-conditioner system.<br/>
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유전 및 육종 : 개의 친자감정을 위한 Microsatellite DNA 다형성 분석
조길재 ( G. J. Cho ),조병욱 ( B. W. Cho ),김선구 ( S. K. Kim ),이길왕 ( K. W. Lee ),김영규 ( Y. K. Kim ) 한국축산학회 2003 한국축산학회지 Vol.45 No.2
This study was carried out to investigate a usefulness of the microsatellite DNA markers for individual identification and parentage verification in three dog breeds. A total of 59 random dog (31 Chiwawa, 20 Poongsan, 8 Labrador Retriever) samples were genotyped by using 14 markers (Chiwawa dog), 16 markers (Poongsan dog), and 12 markers (Labrador Retriever dog) among the 17 international standard markers (PEZ1, 3, 5, 6, 8, 10, 11, 12, 13, 15, 16, 17, 20, 21, FHC2010, FHC2054 and FHC2079), respectively. The number of alleles per locus varied from 4 to 14 with a mean value of 6.07 in Chiwawa dog, 2 to 9 with a mean of 4.75 in Poongsan dog, and 3 to 5 with a mean of 4.00 in Labrador Retriever dog. Observed heterozygosity was ranged 0.419~0.968 (mean 0.755), 0.300~0.950 (mean 0.597) and 0.125~0.750 (mean 0.604), and expected heterozygosity was ranged 0.432~0.883 (mean 0.711), 0.262~0.817 (mean 0.559) and 0.425~0.808 (mean 0.660) in these three dog breeds. PIC value was ranged 0.397~0.856 (mean 0.659), 0.222~0.772 (mean 0.503) and 0.354~0.717 (mean 0.563) in these three dog breeds. Of the 17 markers, PEZ1, PEZ3, PEZ6, PEZ10, PEZ12 loci, PEZ1, PEZ6, PEZ13 loci, and PEZ8, PEZ12 loci have relatively high PIC value (>0.7) in Chiwawa dog, Poongsan dog and Labrador Retriever dog, respectively. The exclusion probability was ranged 0.240~0.741, 0.111~0.616, and 0.198~0.529, and the combination of microsatellite loci was 0.9999, 0.9991, and 0.9968 in Chiwawa dog, Poongsan dog and Labrador Retriever dog, respectively. These results can give basic information for developing parentage verification and individual identification system in these three dog breeds.
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