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VHDL을 적용한 Microcontroller에 의한 능동전력 필터에 관한 연구
김수곤(Soo-Gon Kim),한운동(Woon-Dong Han),김순영(Soon-Young Kim),전희종(Hee-Jong Jeon) 전력전자학회 2002 전력전자학술대회 논문집 Vol.- No.-
In this paper, the current controlled active power filter(APF) with the performance of reducing harmonic and improving power factor is studied. It has high speed and good performance with low cost.<br/> The current controlled shunt APF is proposed, and the control part of APF is designed of SOC(System On Chip). So this system has low expense and good performance.<br/> In this study, the micro-controller which designed with VHDL is applied to APF system. And the proposed technique in this paper demonstrates the excellent of the dedicated micro-controller. VHDL-based ASIC can simplify<br/> the process of development and has a competition in market because it reduces the consuming time for the design of IC(Integrated Circuit) in system level.
근적외선분광법을 이용한 옥수수 사일리지의 소화율 및 에너지 평가
박형수(Hyung Soo Park),이종경(Jong Kyung Lee),이효원(Hyo Won Lee),김수곤(Su Gon Kim),하종규(Jong Kyu Ha) 한국초지조사료학회 2006 한국초지조사료학회지 Vol.26 No.1
This study was carried out to explore the accuracy of Near Infrared Reflectance Spectroscopy (NIRS) for the prediction of digestibility and energy value of corn silages. The spectral data were regressed against a range of digestibility and energy parameters using modified partial least squares(MPLS) multivariate analysis in conjunction with first and second order derivatization, with scatter correction procedure(SNV-Detrend) to reduce the effect of extraneous noise. Calibration models for NIRS measurements gave multivariate correlation coefficients of determination(R²) and standard errors of cross validation of 0.92(SECV 1.73), 0.91(SECV 1.13) and 0.93(SECV 1.74) for in vitro dry matter digestibility(IVDMD), in vitro true digestibility(IVTD), and cellulase dry matter digestibility(CDMD), respectively. The standard error of prediction(SEP) and the multiple correlation coefficient of validation(R²v) on the validation set(n = 39) was used in comparing the prediction accuracy. The SEP value was 0.80(TDN), 0.01(NEL), and 0.01(ME). The relative ability of NIRS to predict digestibility and energy value was very good for CDMD, total digestible nutrients(TDN), net energy for lactation(NEL) and metabolizable energy(ME). This paper shows the potential of NIRS to predict the digestibility and energy value of corn silage as a routine method in feeding programmes and for giving advice to farmers.
변창섭,임수곤,김수곤,신훈규,Byun, Chang-Sub,Lim, Soo-Gon,Kim, Su-Kon,Shin, Hoon-Kyu 한국전기전자재료학회 2013 전기전자재료학회논문지 Vol.26 No.7
We investigated the variation of anion exchange membrane of hydrogen generator of alkaline electrolysis. We detected the variation of elements and change of anion exchange membrane using EDS and FE-SEM. We detected two different sites of membrane because of different structure of membrane. $Sp_1$ shows that the distribution ratio of C, O, Al is 98% very higher than $Sp_2$ of 78%. Especially, the main elements of STS316 which is P, S, Fe, Ni were more detected at $Sp_2$ than $Sp_1$. We think that this result depends on the structure of membrane. This also affect the resistance, lifetime of membrane and decrease the efficiency of hydrogen production. We hope that this article is a foundation of developing of hydrogen production technology.