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ULSD, CR-DPF와 EGR을 적용한 디젤기관의 배출가스에 관한 연구
문병철(Byungchul Moon),오용석(Yongsuk Oh) 한국생산제조학회 2006 한국생산제조학회지 Vol.15 No.5
Since air pollution has become a globally critical issue and exhaust emissions from automobiles cause a major source of air pollution, many countries including advanced countries have stipulated stringent emission regulations. This test was conducted on the effect of continuous regeneration diesel particulate filter and cooled-EGR, and 15ppm low sulfur diesel was used as a test fuel. Exhaust emissions, PM, NOx, CO, HC and Soots were measured and compared under D-13modes. Through durability test on diesel particulate filter, regeneration characteristics and control technology on PM were investigated in overall.
DNA 바코드 분석을 통한 소계(小계) 및 대계(大계) 기원식물 감별과 종간 유연관계 분석
문병철 ( Byeong Cheol Moon ),이영미 ( Young Mi Lee ),지윤의 ( Yun Ui Ji ),최고야 ( Goya Choi ),천진미 ( Jin Mi Chun ),김호경 ( Ho Kyoung Kim ) 대한본초학회 2013 大韓本草學會誌 Vol.28 No.3
Objectives : The origin of Breeae Herba (So-gye) and Cirsii Herba (Dae-gye) is differently prescribed in Korean and Chinese modern pharmacopoeia. Since the similar morphological characteristics and chaotic plant names, moreover, the aerial part of Carduus crispus have been used as the Cirsii Herba. To develop a reliable method for correct identification of these herbal medicines and to evaluate the genetic relationship of these closely related plant species, we analyzed sequences of DNA barcode regions. Methods : Thirty-one samples of 6 medicinal plants (B. segeta, B. setosa, C. japonicum var. maackii, C. setidens, C. chanroenicum, and C. crispus) were collected from different habitate and nucleotide sequences of DNA barcode regions (rDNA-ITS, matK, and rbcL) were analyzed after amplification using appropriate primers reported in previous studies. The nucleotides of species-specific authentic marker and phylogenetic relations were estimated based on the entire sequences of DNA barcodes by the analysis of ClastalW and UPGMA, respectively. Results : In comparative analysis of DNA barcode sequences, we obtained specific nucleotides to discriminate the medicinal plant of Breeae/Cirsii Herba in species level and evaluated the phylogenetic relationship of these species. Futhermore, we identified distinct marker nucleotides enough to authenticate respective species. These sequence differences at corresponding positions were avaliable genetic markers to determine the botanical origins of Breeae Herbal as well as Cirsii Herba. Conclusions : These marker nucleotides would be useful to identify the official herbal medicines by providing of definitive information that can identify each plant species and distinguish from unauthentic adulterants and substitutes.
matK 증폭용 primer 개발 및 염기서열 분석을 통한 정력자(葶藶子) 유전자 감별
문병철 ( Byeong Cheol Moon ),김욱진 ( Wook Jin Kim ),양선규 ( Sungyu Yang ),박인규 ( Inkyu Park ),여상민 ( Sang Min Yeo ),노푸름 ( Pureum Noh ) 대한본초학회 2018 大韓本草學會誌 Vol.33 No.3
Objectives : Lepidii seu Descurainiae Semen has been frequently adulterated with the seeds of several inauthentic plant species. However, the accurate identification of these plant seeds is very difficult. To develop a reliable genetic authentication tool for Lepidii seu Descurainiae Semen, we analyzed mat K sequence. Methods : To obtain the mat K sequences of plant materials, genomic DNA was extracted from 24 samples and PCR amplification was carried out using matK-AF/matK-8R universal primer set and matK-LDSF/matK-LDSR primer set. For identifying species-specific nucleotides and phylogenetic analysis, matK regions were sequenced and comparatively analyzed by the ClustalW and Maximum Likelihood method. Results : We developed a new primer set to amplify matK region in Lepidii seu Descurainiae Semen and closely related plant samples. From the comparative analysis of mat K sequences, we identified species-specific marker nucleotides for D. sophia, L. apetalum, L. latifolium, E. cheiranthoides, E. macilentum, and D. nemorosa, respectively. Furthermore, phylogenetic analysis revealed clear classification depending on the species. These results indicated that the matK sequence obtained a new primer set in this study was useful to identify Lepidii seu Descurainiae Semen in species level. Conclusions : We developed a primer set and identified species-specific marker nucleotides enough to distinguish authentic Lepidii seu Descurainiae Semen and adulterants at the species level based on the matK sequences. These genetic tool will be useful to prevent adulteration and to standardize the quality of Lepidii seu Descurainiae Semen.
고정 선반입과 미디어 Drop을 이용한 VOD 버퍼 스케쥴러의 설계 및 분석
문병철(Beong-Cheoul Moon),박규석(Kyoo-Seok Park) 한국정보과학회 2000 한국정보과학회 학술발표논문집 Vol.27 No.1A
VBR로 압축된 멀티미디어 데이터는 비트 변화율이 매우 큰 편차로 변하기 때문에 자원 예약 관리가 매우 힘들다. 따라서 MPEG데이터의 참조 패턴을 오프라인으로 분석한 메타 테이블을 근거로 과부하 구간에서 미리 선반입하여 시스템의 활용을 높이는 선반입 기법을 사용하고 있으나, 기존의 선반입 기법은 상영실패는 발생하지 않지만 선반입 임계슬롯이 증가하면서 버퍼 점유량이 증가되어 최소의 적재시간과 적재비용을 유지할 수 없다. 따라서 본 논문에서는 선반입 구간을 고정함으로써 적재비용과 적재시간을 일정한 범위 이하로 유지하면서 시스템 자원의 활용율을 높이는 방법을 제안한다. 그리고 고정 선반입 구간을 사용할 경우 발생하는 상영 실패를 GOP내의 B프레임에 한정하며, Drop모듈을 이용하여 미디어 질 저하를 전체 사용자에게 분산시키는 방법을 제안한다.
문병철(Byung-Chul Moon),김동수(Dong-Soo Kim),김희완(Hee-Wan Kim) 한국IT서비스학회 2012 한국IT서비스학회지 Vol.11 No.2
This paper describes how to derive audit criterion, audit domain, detail technology, and functional check items which are core of hospital information system, consisting of OCS, EMR, and PACS. Using the check items listed above, we investigated the objective validity for the construction audit of hospital information system. As a result, the derived audit criterion, audit domain, detail technology, and functional check items were verified as check items for audit. Since using the current audit check items of public area is insufficient to construct efficient, reliable, and stable hospital information system, we suggest adopting the hospital information system audit area, audit check items, and process that are presented in this paper.
특별강연(特別講演) 및 학술연구(學術硏究) 발표요지(發表要旨) : 제2분야: 잡초 생리생태 ; 벼 이앙재배시 벗풀, 물달개비 경합에 따른 패해해석
문병철 ( Byeong Chul Moon ),권오도 ( O. D. Kwon ),조승현 ( S. H. Cho ),이순계 ( S. G. Lee ),원종건 ( J. G. Won ),송석보 ( S. B. Song ),박태선 ( T. S. Park ),강충길 ( C. K. Kang ),조정래 ( J. R. Joo ),김도순 ( D. S. Kim ),박재읍 한국잡초학회 2006 한국잡초학회 별책(학술대회 초록집) Vol.26 No.1