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S-Function Builder를 이용한 UWB 시스템의 성능해석
이성신,김기표,최정식,변건식 東亞大學校附設情報技術硏究所 2005 情報技術硏究所論文誌 Vol.12 No.2
The application of UWB not only complies with the requirements of remote sensors system(ECG), it also contributes to the effectiveness of the implementations through its unique qualities such as ultra low transmission power - an important factor when dealing with biomedical equipment. In this paper, the aim is to replace the wired ECG sensor with a wireless link and design wireless UWB communication system. The various pulse shapes are presented that satisfies the FCC spectral mask and FCC part 15 rule. It is shown that UWB can be a high rate transmission over short ranges using rake receiver, with the capability for reliably transmitting 100Mbps over distance at about 10 meters.
최정식,이성신,김기표,변건식 東亞大學校附設 情報技術硏究所 2005 情報技術硏究所論文誌 Vol.13 No.1
OFDM technique which the available bandwidth is split into several narrowband subchannels at different frequencies is particularly suited for transmission over frequency selective channels. But if the states of some subchannel are bad, the performance of system become to decrease. The principle of bitloading is to adjust the date rate on the individual subchannels based on the current SNR. A subchannel with high SNR is then assigned more bits than a subchannels with lower SNR. As a results, we confirmed the superior performance if we used bitloading algorithm in OFDM system.
( Sin Gi Park ),( Jong Bhak ),( Jong Soo Kim ),( Tae Hyung Kim ),( Jee Hyun An ),( Sang Youl Rhee ),( Hee Kyung Kim ),( Min Joo Kim ),( Hyun Jeong Jeon ),( Taekeun Oh ),( Hyung Jin Choi ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Background: Agranulocytosis is a rare but life-threatening side effect of antithyroid drugs. Several reports, including familial cases, suggested that there could be substantial genetic susceptibility determinants which could predict the risk of antithyroid drug induced agranulocytosis. However, no tests are currently available to predict the risk of antithyroid drug induced agranulocytosis. Methods: In this study, we performed whole-exome sequencing to comprehensively identify the genetic variations responsible for antithyroid drug induced agranulocytosis. For discovery stage 1, whole-exome sequencing was performed for seven antithyroid drug induced agranulocytosis cases. Variant based approach and gene based approach were performed to discover candidate variants or genes for antithyroid drug induced agranulocytosis. For HLA loci, HLA-sequence-based typing was performed. For validation stage 2, Sanger sequencing and HLA-sequence-based typing were performed for eight additional independent antithyroid drug induced agranulocytosis cases. Antithyroid drug users without agranulocytosis side effect, Korean local healthy controls and public HLA database were used as control group. Results: Discovery stage genome-wide association study results revealed strong signals in chromosome 6 (P=2.7×10-8) and chromosome 19 (P=1.7×10-14). HLA typing of seven discovery cases and eight validation cases revealed several HLA types, which showed strong association with antithyroid drug induced agranulocytosis (odds ratio=4.6-6.3, P=3×10-3-5×10-5). Gene based approach indicated several candidate genes for antithyroid drug induced agranulocytosis. In these genes, several loss of function variants were found, which were common among antithyroid drug induced agranulocytosis cases, but these variants were very rare among controls (P=2.0×10-3-1.8×10-4). Conclusions: In conclusion, several strong genetic predictors of antithyroid drug induced agranulocytosis were discovered. To avoid the risk of life-threatening agranulocytosis side effect, these pharmacogenomics markers could be tested in clinic before initiation of antithyroid drugs.
원발성 소세포폐암에서 염색체 16번의 단완에 위치한 종양억제유전자좌의 확인
기현정 ( Gi Hyeon Jeong ),신주혜 ( Sin Ju Hye ),장준 ( Jang Jun ),정경영 ( Jeong Gyeong Yeong ),신동환 ( Sin Dong Hwan ),김영삼 ( Kim Yeong Sam ),장윤수 ( Jang Yun Su ),김성규 ( Kim Seong Gyu ),곽승민 ( Gwag Seung Min ),김세규 ( 대한결핵 및 호흡기학회 2003 Tuberculosis and Respiratory Diseases Vol.55 No.6
포스터 발표 : 포스터 연제 ; 한국인에서의 Endothelial Nitric Oxide Synthase의 유전적 다형성과 당뇨병성 신중과의 관계
신영신 ( Sin Yeong Sin ),백상흥 ( Baeg Sang Heung ),박철휘 ( Park Cheol Hwi ),고윤호 ( Go Yun Ho ),장기욱 ( Jang Gi Ug ),승기배 ( Seung Gi Bae ),장윤식 ( Jang Yun Sig ),최규보 ( Choe Gyu Bo ),방병기 ( Bang Byeong Gi ) 대한신장학회 2000 춘계학술대회 초록집 Vol.19 No.2
이미지 센서용 10-비트 125-MS/s 파이프라인 ADC
신기철(Gi-Cheol Sin),이주상(Ju-Sang Lee),이해원(Hae-won Lee),유상대(Sang-Dae Yu) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.11
A/D converters with high speed and high resolution is needed to process video signal in digital camera and mobile phone. In this paper, a 10-bits 125-MS/s pipelined A/D converter is designed to be used in CMOS image sensor systems. It consists of sample-and- hold, flash subrange-ADC, multiply-DAC and digital error correction logic. This ADC is expected to used in not only CMOS image sensor system but also communication system or set-top box.