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BCD Platform과의 집적화에 적합한 고성능 Lateral Super Barrier Rectifier의 연구
김덕수,이희덕,Kim, Duck-Soo,Lee, Hi-Deok 한국전기전자재료학회 2015 전기전자재료학회논문지 Vol.28 No.6
This paper suggests a high performance lateral super barrier rectifier (Lateral SBR) device which has the advantages of both Schottky diode and pn junction, that is, low forward voltage and low leakage current, respectively. Advantage of the proposed lateral SBR is that it can be easily implemented and integrated in current BCD platform. As a result of simulation using TCAD, BVdss = 48 V, $V_F=0.38V$ @ $I_F=35mA$, T_j = $150^{\circ}C$ were obtained with very low leakage current characteristic of 3.25 uA.
내관(PC-6) 및 위유(BL-21)의 자침 및 수침이 xylazine을 투여한 개에 미치는 구토 억제효과
김덕수,유건주,이정연,김명철,신상태,김덕환,Kim, Duck-Soo,Liu, Jianzhu,Lee, Jung-Yeon,Kim, Myung-Cheol,Shin, Sang-Tae,Kim, Duck-Hwan 대한수의학회 2005 大韓獸醫學會誌 Vol.45 No.3
This study was performed to elucidate the effect of acupuncture and aqua-acupuncture in dogs. Each group was divided into control (18 dogs), PC-6 (6 dogs) and BL-21 (6 dogs) group for the antiemetic effect of acupuncture, respectively. And, the animals were divided into control (18 dogs), PC-6 (18 dogs) and BL-21 (18 dogs) group for the antiemetic effect of aqua-acupuncture with metoclopramide, respectively. 2% xylazine was injected to the all dogs to induce the emesis, and acupuncture and aqua-acupuncture treatment (0.5% metoclopramide) were applied to animals for 20 min. before xylazine injection, respectively. Emetic rates in PC-6 (33.3%) and BL-21 (16.7%) were lower than that of control group (44.4%) in acupuncture groups, respectively. Emetic rates in PC-6 (16.7%) and BL-21 (0.0%) were lower than that of control group (38.9%) in aqua-acupuncture groups, respectively. Based on these findings, it was considered that the antiemetic effects of acupuncture and aqua-puncture at BL-21 were more effective than those of PC-6 groups, and aqua-acupuncture with metoclopramide at BL-21 was the most effective among them.
Mobile CMOS image sensor 의 효율적인 color reproduction calibration 방법
김덕수(Duck-soo Kim),김태찬(Tae-chan Kim) 대한전자공학회 2010 대한전자공학회 학술대회 Vol.2010 No.6
일반적인 디지털 CMOS 센서를 이용한 camera system에서는 색재현성을 향상 시키기 위해 color reproduction calibration 과정을 거친다. 하지만 3x3 matrix 를 이용한 color reproduction 방식을 최소자승법을 이용하여 calibration 하는 일반적인 방법으로는 CMOS 이미지 센서 픽셀 사이즈가 작아짐에 따라 발생되는 여러 문제를 해결하는데 한계가 있다. 본 논문에서는 이러한 측면을 고려한 효율적인 color reproduction calibration 을 위한 color reproduction cost function 을 제시하고 그 효과를 검증하고자 한다.