• 대한전자공학회논문지SD
• /
• 제46권1호
• /
• pp.98-106
• /
• 2009

본 논문에서는 ultra mobile PC (UMPC) 및 휴대용 기기 시스템 같이 고속으로 동작하며 고해상도 저전력 및 소면적을 동시에 요구하는 16M-color low temperature Poly silicon (LTPS) thin film transistor liquid crystal display (TFT-LCD) 응용을 위한 1:12 MUX 기반의 1280-RGB $\times$ 800-Dot 70.78mW 0.13um CMOS LCD driver IC (LDI) 를 제안한다. 제안하는 LDI는 저항 열 구조를 사용하여 고해상도에서 전력 소모 및 면적을 최적화하였으며 column driver는 LDI 전체 면적을 최소화하기 위해 하나의 column driver가 12개의 채널을 구동하는 1:12 MUX 구조로 설계하였다. 또한 신호전압이 rail-to-rail로 동작하는 조건에서 높은 전압 이득과 낮은 소비전력을 얻기 위해 class-AB 증폭기 구조를 사용하였으며 고화질을 구현하기 위해 오프 셋과 출력편차의 영향을 최소화하였다 한편, 최소한의 MOS 트랜지스터 소자로 구현된 온도 및 전원전압에 독립적인 기준 전류 발생기를 제안하였으며, 저전력 설계를 위하여 차세대 시제품 칩의 source driver에 적용 가능한 새로운 구조의 slew enhancement기법을 추가적으로 제안하였다. 제안하는 시제품 LDI는 0.13um CMOS 공정으로 제작되었으며, 측정된 source driver 출력 정착 시간은 high에서 low 및 low에서 high 각각 1.016us, 1.072us의 수준을 보이며, source driver출력 전압 편차는 최대 11mV를 보인다. 시제품 LDI의 칩 면적은 $12,203um{\times}1500um$이며 전력 소모는 1.5V/5.5V 전원 저압에서 70.78mW이다.

• 한국인쇄학회:학술대회논문집
• /
• 한국인쇄학회 2007년도 추계 학술논문 발표회
• /
• pp.13-28
• /
• 2007

Producing printing plate is essential progress to do offset printing. In this Film-less period, the more PS plate becomes extinct, the more the age of the Plate-Making of Exposure declines the place to stand. To do offset printing, the CTP (Computer to Plate) is taking a place of PS plate that covers speed, quality and economical problems. The biggest advantage of using CTP is that laser directly goes to the plate, thus there are no dust from the Plate-Making of Exposure. It is also theoretically able to print 200lpi${\sim}$300lpi as well as print 1751pi, because it has over 2400dpi resolution. The high quality printing could be available inside of the country, if printing machine keeps the optimum condition in offset printing. The CTP has many advantages, however there is a difficulty for the operators to preserve the equipment. The actual circumstance is that they cannot make a decision about how many dots need to be generated, and also it is necessary to know how to establish the setup at RIP on CTP to make the optimum condition output. If offset printing machine keeps the optimum condition, it would be able to print up to high quality printing however it is hard to comment what is the optimum condition for the printing machine. Anyone could say easy subjectively that machine is in the optimum condition, however it is objectively hard to estimate by number. In this research GATF / Plate Test target used to analyze the image and to make numerical value of the optimum condition of the CTP. It also used GATF / The sheep fed test printing 5.0 to know the density of the color representation, dot gain and gray balance for the optimum condition of the print machine. The purpose of this research is to represent the ISO 12647-2 which is the international standard with domestic printing equipments.

• 한국인쇄학회지
• /
• 제25권2호
• /
• pp.69-84
• /
• 2007

Producing printing plate is essential progress to do offset printing. In this Film-less period, the more PS plate becomes extinct, the more the age of the Plate-Making of Exposure declines the place to stand. To do offset printing, the CTP (Computer to Plate) is taking a place of PS plate that covers speed, quality and economical problems. The biggest advantage of using CTP is that laser directly goes to the plate, thus there are no dust from the Plate-Making of Exposure. It is also theoretically able to print $200lpi{\sim}300lpi$ as well as print 1751pi, because it has over 2400dpi resolution. The high quality printing could be available inside of the country, if printing machine keeps the optimum condition in offset printing. The CTP has many advantages, however there is a difficulty for the operators to preserve the equipment. The actual circumstance is that they cannot make a decision about how many dots need to be generated, and also it is necessary to know how to establish the setup at RIP on CTP to make the optimum condition output. If offset printing machine keeps the optimum condition, it would be able to print up to high quality printing however it is hard to comment what is the optimum condition for the printing machine. Anyone could say easy subjectively that machine is in the optimum condition, however it is objectively hard to estimate by number. In this research GATF / Plate Test target used to analyze the image and to make numerical value of the optimum condition of the CTP. It also used GATF / The sheep fed test printing 5.0 to know the density of the color representation, dot gain and gray balance for the optimum condition of the print machine. The purpose of this research is to represent the ISO 12647-2 which is the international standard with domestic printing equipments.

• 농업과학연구
• /
• 제45권2호
• /
• pp.204-210
• /
• 2018

Medium chain triglycerides (MCTs) provide polka dot grouper Chromileptes altevelis with a more readily utilizable source of energy than long-chain fatty acids (LCFAs) and significantly elevate the plasma cholesterol level of chickens. As a possible alternative to feed antibiotics, this study investigated the effect of different phase levels of medium chain triglycerides on the growth performance, excreta microflora and blood profiles in broilers. A total of 450 ROSS 308 mixed-sex broilers with an average initial body weight of $49{\pm}0.79g$ (1 day of age) were used in this trial. They were randomly assigned to the following 3 treatments (15 birds / 10 replications): CON (Basal diet); MCT1 (Starter, Grower, Finisher: Basal diet + 0.1%, 0.075%, 0.05% of MCT) and MCT2 (Starter, Grower, Finisher: Basal diet + 0.1%, 0.1%, 0.1% of MCT). The results show that supplementing the diets with different phase levels of MCT did not have a significant impact on the body weight gain (BWG), feed intake (FI) and feed conversion ratio (FCR) during the overall experimental period. Additionally, there were no differences in the blood profiles and excreta microflora among the treatments. However, this study found that the BWG was increased by 2.3%, and the FCR was decreased by 0.6% in the broiler fed MCT1 treatment group during overall experiment phase. Therefore, the results suggest that MCTs could be used as an alternative to growth promoting feed additives. Moreover, further research should be done to evaluate the effect of the different levels of MCTs.