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정장표,박명호,이기호 慶星大學校 1990 論文集 Vol.11 No.3
Air quality dispersion models(AQM) are widely used to control air pollutants and to predict the distributions of air pollutants. But A. Q. M have many problems and limitations, therefore it is necessary to validate models before use. So in this study, to improve the model accuracy, the sensitivity analysis of three short-term models(TEM, RAM, PTMTP) is performed. The conclusions obtained from this study were as follows. 1) TEM model shows generally lower concentration than other two models, and the concentration values of RAM and PTMTP models are almost same over than 1km of downwind distance. 2) It appears that the sensitivities of stack height stack inner diameter, gas exit velocity and wind speed, are significant. And their Sensitivity coefficient of maximum concentration is consider ably high. 3) The gas exit velocity, stack inner diameter, gas temperature and air temperature which affect the plume rise, have some effect on the concentration values of each model within the downwind distance where final plume rise is determined. 4) The sensitivity coefficient of there models with downwind distance show larger value in the near distance from source.
정호영,송명규 남서울대학교 2001 남서울대학교 논문집 Vol.7 No.-
Iterative decoding of PCCC(parallel concatenated convolutional codes) achieves an error performance close to the Shannon limit through decoding iterations and by using a large interleaver. As the number of iterations increases, the bit error rate of the decoder decrease. But the incremental improvement gradually diminishes. Therefore, it is important to devise an efficient criterion to stop the unnecessary iteration process to reduce the computations and decoding delay. In this paper, we present an efficient stopping criterion for PCCC turbo decoding which requires no storage and minimal calculation. Simulation results are presented to analyze the BER performance of the proposed criterion.
정명아,서유승,양진수,박준섭,윤진훈,이중건,이준승,이영규,김동희,조성범,주종은 대한신장학회 2002 Kidney Research and Clinical Practice Vol.21 No.2
Pelvic actinomycosis is a chronic granulomatous suppurative disease caused by an anaerobic grampositive organism Actinomyces israelii. It is com-monly associated with an intrauterine device(IUD) and can mimick pelvic or intra-abdominal malignant neoplasm. Ureteral obstruction leading to hydronephrosis is a rare complication of tubo-ovarian abscess. We experienced a case of hydronephrosis as a complication of pelvic actinomycotic abscess. The patient was a 46-year-old women presenting with fever and right flank pain. Leukocytosis and pyuria were present and a hydronephrosis was diagnosed by intravenous pyelography. Ultrasonography and a computerised tomography revealed a mass in right adnexum compressing the right ureter. Removal of retroperitoneal abscess and salphingo-oophorectomy were done and the diagnosis of actinomycosis was made by pathologic finding of resected mass. Postoperatively, the patient was treated with second-generation cephalosporin successfully. (Korean J Nephrol 2002;21(2):337-340)
Lidocaine과 Diazepam이 흰쥐 뇌 부위별 5-Hydroxytryptamine 및 5-Hydroxyindole 3-Acetic Acid 농도에 미치는 영향에 관한 연구
김명수,정동균 대한구강생물학회 1986 International Journal of Oral Biology Vol.10 No.2
We tried to clarify the role of serotonergic neurons in lidocaine-induced convulsion and in the anticonvulsant action of diazepam. Fifty Sprague-Dawley rats were grouped in 4 groups and two injections were made in 10 minute-interval to each group. Saline and saline (saline control), saline and lidocaine 70㎎/㎏(lidocaine group), diazepam 5㎎/㎏ and saline(diazepam group) or diazepam 5㎎/㎏ and lidocaine 70㎎/㎏(dz+lido group)were administered intraperitoneally and the rats were sacrificed at 3, 6 or 12minute after second injection. 5-HT and 5-HIAA concentration in the brain tissue was measured by HPLC-EC detection method and the 5-HIAA/5-HT ratio was calculated. The results were as follows : 1. The concentrations of 5-HT and 5-HIAA were significantly increased in hippocampus and in medulla and pons by the administration of lidocaine and the 5-HIAA/5-HT ratio was increased in hippocampus and in amygdala. 2. By the pretreatment with diazepam the increase in 5-HIAA/5-HT ratio by lidocaine was reversed in all regions examined and the concentrations of the 5-HT and 5-HIAA were increased when compared with saline control. 3. Diazepam increased the concentrations of 5-HT and 5-HIAA in all regions examined and the increase was significant in medulla and pons at 6 minutes and in amygdala and hippocampus at 12 minute. The 5-HIAA/5-HT ratio was somewhat higher than dz+lido group and saline control group but somewhat lower than lidocaine group.
송명규,정호영 남서울대학교 공학연구센터 2001 공학연구 Vol.2 No.-
The main goal of this paper is to establish the overall management network structure for ATM network by adopting TMN concept. Hence, the overall management network structure for ATM network is consisted of many management elements; management layer elements and TMN's. This paper propose TMN management Unit for ATM network. And We choose the main network of overall management and ATM network based upon optical communication is also selected as TMN-DCN.
( Cheong Myeong-ah ) 대한민국역사박물관 2019 Public History & Museum Vol.2 No.-
In honor of the centennial anniversary of the March 1<sup>st</sup> Movement, a series of special exhibitions have been held in museums and galleries throughout the country. This article provides an overview of the directing intention at exhibitions held by four major museums. The National Museum of Korean Contemporary History created a large-scale exhibition. The Seoul Museum of History organized an exhibition entitled “March 1st Independence Movement in Seoul and Pyeongyang”. The Independence Hall of Korea completely renovated its 3rd exhibition hall to host a special exhibition. The Cultural Heritage Administration held an exhibition at Seodaemun Prison History Hall.
소화성궤양 환자에서 저용량 clarithromycin 3제요법의 Helicobacter pylori 제균효과
정명아 ( Myeong A Cheong ),김태헌 ( Tae Hun Kim ),박영숙 ( Young Sook Park ),이진혁 ( Jin Hyuk Lee ),주연호 ( Yeon Ho Joo ),최일주 ( Il Ju Choi ) 대한소화기학회 2002 대한소화기학회 춘계학술대회 Vol.2002 No.-
<목적> 우리나라에서는 H. pylori의 첫 치료로 PPI, amoxacillin과 clarithromycin의 3제요법이 추천되고 있다. Clarithromycin의 용량은 500mg을 하루 2회 복용하는 것이 추천되나, 250mg을 하루 2회 복용하는 저용량 Clarithromycin 3제요법의 H. pylori 제균 효과에 대하여는 아직 논란이 있는 실정이다. Omeprazole을 사용한 3제요법에 대한 국내의 보고에서 clarithromycin
키 추출 공격을 회피하는 이미지를 이용한 동적 키 생성 매커니즘
정명우 ( Myeong-woo Cheong ),오윤석 ( Yoon-seok Oh ),서승현 ( Seung-hyun Seo ),강유성 ( You-sung Kang ),최두호 ( Doo-ho Choi ) 한국정보처리학회 2016 한국정보처리학회 학술대회논문집 Vol.23 No.2
현대 사회는 IoT의 대중화와 함께 늘어나는 보안 위협에 노출되어 있다. 특히 CCTV의 설치 구역 확대는 그 보안 취약성과 맞물려 사생활 침해 등 문제를 야기할 가능성이 높다. 기존의 보안 솔루션은 키를 기기에 저장해야 하는 점 때문에 키 추출 공격 등으로 쉽게 보호능력을 상실할 수 있다. 본 논문은 키를 저장하는 것이 아닌 이미지를 씨드(Seed)로 사용하여 동적으로 키를 생성하는 개념과 매커니즘을 제안한다.