• Proceedings of the IEEK Conference
• /
• 1999.06a
• /
• pp.149-153
• /
• 1999

As VLSI technology advances rapidly, the operating frequency of digital systems becomes very fast. In such a high-speed system, there are many factors that threaten signal integrity. The noise sources in digital system include the noises in power supply, ground bounce and packaging media and distortions on single and multiple transmission lines. This paper will present a technology survey useful in the design of Gigabit interconnection systems. Some case studies have been constructed which show the lossy transmission line effect of skin effect. dielectric loss, with backplane connectors using the theoretical and practical conditions.

• Proceedings of the Membrane Society of Korea Conference
• /
• 1994.04a
• /
• pp.29-32
• /
• 1994

The increasing environmental risks exert strong demands for the knowledge of environmentally significant compounds and the reduction of such compounds on the earth. The risk reduction can, in principle, be most effectively achieved by minimizing the formation of environmental pollutants, by-products in many cases, during processes in factories, power plants and other sources. This can be done by on-line, real time monitoring the formation of pollutants at the moment when they are formed, and thereby through the feed-back control of the process.

• 한국생물공학회:학술대회논문집
• /
• 2002.04a
• /
• pp.228-231
• /
• 2002

Itaconic acid has been produced during the cutivation of Aspergillus terreus DSMZ 5770 by using several starchs as carbon sources. The starchs were pretreated by partial hydrolysis with some acids at various pH conditions. The highest yield for the production of itaconic acid has been found when rice starch was pretreated by sulfonic acid at pH 2.5 and utilized for the cultivation. Using the results from shaker fermentation A. terreus has been cultivated in 2.5 L bioreactor for the production of itaconic acid and its on-line monitoring.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2002.08a
• /
• pp.392-394
• /
• 2002

Yoke simulator has been made for understanding beam movements in the deflection fields of the CRT. Consisting of the modeler, solver and post-processor, the simulator makes yoke model (conventional and rectangular yoke) and calculates charge sources and magnetic filed by BEM (boundary element method). This system supports a number of charge elements (line and surface charges) and beam movements can be predicted by the system.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2000.01a
• /
• pp.13-14
• /
• 2000

21.6" a-Si:H TFT array for direct conversion X-ray detector with 2480 by 3072 pixel is successfully developed. To obtain good X-ray image quality, novel structure, storage on BCB structure, is proposed. The structure reduces the parasitic capacitance of data line, one of the main sources of signal noise. Also, the structure shows higher failure resistance against defects than that of the old design.

• Nuclear Engineering and Technology
• /
• v.44 no.4
• /
• pp.387-392
• /
• 2012

This paper discusses the concept of merging multiple sources of data on the same 2D CAD drawing(s) for power plant operation. It also presents the concepts and tools used in this project.

• Journal of the Korean Society of Safety
• /
• v.11 no.2
• /
• pp.102-108
• /
• 1996

Urban air pollution has been gradually increasing by the increase of population and vehicles recently. There are shown larger effects of air pollution in Incheon city which has more than 2 million people and has heavy holding amounts ratio of transportation vehicles as compared with other cities. However, it is very difficult to predict the air quality condition of their moving pollutants. Therefore, in this study air pollution measuring model was designed to estimate the air pollution level by line sources(transprtation vehicles ) of air pollutants and to detect the $NO_x$ emission amounts in ordinary times, and it became clear that it is functionally operative.

• Proceedings of the KIPE Conference
• /
• 2001.07a
• /
• pp.666-668
• /
• 2001

전력선통신 변조방식 중 FSK(Frequency Shift Keying) 변조방식을 이용하여 컴퓨터와 RS232 케이블로 전력선모뎀과 연결하여 컴퓨터의 데이터신호를 전력라인으로 직접 송신할 수 있게 하였으며, 수신부에서 데이터신호를 검출하여 가전기기의 전원을 ON/OFF하였다.

• Preventive Nutrition and Food Science
• /
• v.2 no.3
• /
• pp.263-268
• /
• 1997

Gelatin is a high molecular weight polypeptide derived fro mcollgen, theprimary protein component of animal connective tissues, which include bone, skin and tendon. Gelatin is usually produced from two different sources of raw materials (skins or bones) which are processed in two ways(line or acid). According to this pretreatment, gelatin can be divided into elatin type A(acid) and B(lime). The market is essentially driven by thre demand sectors: food, harmaceuticals(capsules) and photography. Although there is some potential threat in the photography sector, the oher tow sectors are well placed for futher growth.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.14 no.8
• /
• pp.4100-4105
• /
• 2013

The Peanut sprouts have been used as food for long time in many Asian countries. Among them, resveratrol have bioactivity effects as antioxidant and anticancer. In this work, resveratrol was extracted from peanut sprouts by dipping(extraction time 3h, $25^{\circ}C$) method. And extraction efficiency and amount was identified using on-line screening HPLC-ABTS. From the experimental results, it is evident that the amount of resveratrol($0.310-0.346{\mu}g/mL$) by 50% aqueous EtOH was higher than any 100% water and EtOH composition. Also, the 100% water extracts sample was low yield 2.040-2.145%. The shown results can be applied as sources for pharmaceuticals and functional material.