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김정렬(C.R. Kim),박명희(M.H. Park),박윤창(Y.C. Park) 한국자기학회 1992 韓國磁氣學會誌 Vol.2 No.2
Mn_xZn_(1-x)Fe₂O₄ ferrites where x is 0.75(μ₁=2000) and 0.52(μ₁=7000) respectively, were prepared at 1360 ℃ by sintering under N₂ atmosphere. The ferrimagnetic resonance(FMR) spectra of those polycrystalline samples have been studied to investigate the origin of physical process which results in permeability enhancement. In the FMR spectra of above samples, one intense peak preceded by two weak subsidiary resonance peaks were observed at room temperature. However, these two subsidiary peaks were disappeared near Curie point in each case indicating that the structure is cubic. The temperature dependence of the g-value, ferrimagnetic reasonance linewidth(△H) and intensity in Mn_xZn_(1-x)Fe₂O₄ ferrite samples have been also studied with the temperature dependence of the initial permeability(μ₁). The result showed that FMR linewidth(△H) and intensity are related to initial permeability.
Monochrome-Camera와 Color-Filter를 이용한 Color Image획득과 색상보정
권오석(O. S. Kwon),박윤창(Y. C. Park) 한국생산제조학회 2005 한국생산제조시스템학회 학술발표대회 논문집 Vol.2005 No.5
Most people are using a Color-CCD-Camera in other to acquire a color image. But we are getting a color image with the Monochrome-CCD-Camera equipped for Rotation-Color-Filter in front of the camera lens. The Monochrome CCD Camera has some advantages such as the low price. In addition Rotation-Color-Filter's design is very simple. So we can make this structure easily and economically. In this paper, we described how to make a color image from Monocrome-Camera and correcting color well.
황선창,박경근,박윤창,편영식 한국공작기계학회 1998 한국공작기계학회 추계학술대회논문집 Vol.1998 No.-
열변위량과 직접영향이 있는 온도를 동시에 측정하고, 측정된 온도로부터 열변위 오차를 예측해 보정하는 장치를 개발하게 되었다. 이 열변위 보정장치 개발을 통해 가공오차가 큰 변화 없이 계속적으로 양질의 제품을 생산하므로써 공작기계의 신뢰도를 높일 수 있고, 경쟁력 있는 고품질의 공작기계를 만들 수 있을 것으로 기대된다.
Monochrome-Camera와 Color-Filter를 이용한 Color Image획득과 색상보정
권오석,박윤창 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-
Most people are using a Color-CCD-Camera in other to acquire a color image. But we are getting a color image with the Monochrome-CCD-Camera equipped for Rotation-Color-Filter in front of the camera lens. The Monochrome CCD Camera has some advantages such as the low price. In addition Rotation-Color-Filter's design is very simple. So we can make this structure easily and economically. In this paper, we described how to make a color image from Monocrome-Camera and correcting color well.