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신경괴사증바이러스(Nervous Necrosis Virus, NNV) 모니터링을 통한 무감염 능성어(Hyporthodus septemfasciatus)친어의 선발
김시우,김위식,서한길,김경민,오명주,Kim, Si-Woo,Kim, Wi-Sik,Seo, Han-Gill,Kim, Kyong Min,Oh, Myung-Joo 한국수산과학회 2017 한국수산과학회지 Vol.50 No.5
We investigated the infection of nervous necrosis virus (NNV) in seven band grouper Hyporthodus septemfasciatus broodstocks, which have been reared in aquaculture farms in South Korea during 2012-2014. To investigate the prevalence of NNV within the broodstock, egg, sperm, and blood were sampled in the spawning season. The egg and sperm samples were subjected to a nested reverse transcription (RT) polymerase chain reaction (PCR) assay to detect NNV and were inoculated on SSN-1 cells to culture the virus. Blood samples were used to detect antibodies against NNV using enzyme linked immunosorbent assay (ELSIA). Positive values from ELISA were found in 39 of 162 samples (24%) in 2012, and 13 of 28 samples (46%) in 2014. Additionally, 4 of 34 broodstocks (11%) investigated in 2013-2014 were determined to be carriers from the nested RT-PCR and in vitro cultivation. The broodstocks in which antibodies against NNV were detected by ELISA, or in which NNV was detected by the nested RT-PCR assay, posed a risk of vertical transmission of NNV. Therefore, it is necessary to select virus-free broodstocks in seed production to reduce the possibility of the vertical transmission of NNV.
단보 : 해수순치 무지개송어 ( Oncorhynchus mykiss)의 Vibrio anguillarum 감염증
김시우 ( Si Woo Kim ),김종오 ( Jong Oh Kim ),김위식 ( Wi Sik Kim ),김도형 ( Do Hyung Kim ),오명주 ( Myung Joo Oh ) 한국어병학회 2014 한국어병학회지 Vol.27 No.2
We examined the cause of a disease outbreak in rainbow trout Oncorhynchus mykiss, which were adapting to a seawater in an aquaculture farm in Jeju on April, 2013. Most of the diseased fish showed a severe ulcer on the skin, enlarged spleen, expanded stomach and hemorrhage of abdominal and pyloric region. Although no parasites, fungi or viruses were isolated from diseased fish, over 200 same bacterial colonies were isolated from liver, spleen and kidney. Nucleotide sequences of the 16S rDNA gene of the bacterium in this study showed 100% identity with Vibrio anguillarum. This study is the first report of V. anguillarum infection in rainbow trout during sea adaption in Korea.
김시우(Si-Woo Kim),이재균(Jae-Kyun Lee),이채욱(Chae-Wook Lee) 한국통신학회 2008 韓國通信學會論文誌 Vol.33 No.2c
2차원 바코드는 많은 정보와 데이터를 빠르게 검색할 수 있기 때문에 여러 산업분야에서 유용한 도구로써 인식되고 널리 사용되어지고 있다. 하지만 의 저장 용량은 아직도 제한적이다. 현재 사용되고 있는 바코드 중에서 최대의 용량을 저장 할 수 있는 인 Analog-Digital (AD)코드가 최근 개발되었다. 바코드의 데이터 저장 용량의 한계점을 극복하게 됨에 따라 바코드의 응용 범위를 더욱 확대할 수 있게 되었다. 본 논문에서는 AD코드와 Text To Speech (TTS)엔진을 이용하여 바코드에 저장된 정보를 음성으로 들려주는 임베디드 시스템을 구현하였다. 이 시스템은 시각장애인 뿐만 아니라 고령자들이 책 또는 신문의 정보를 손쉽게 획득하는 것을 가능하게 해준다. Since a 2-dimensional (2D) bar code can retrieve data and information quickly, it is widely used and recognized as a useful tool for many industrial applications. However, the information capacity of the 2D bar code is still limited. Recently the analog-digital code (AD code), which has the largest storage capacity yet contained in a code, has been developed, thereby expanding the bar code's application range because it overcomes the limitation of data capacity. In this paper, we present the AD code and implement an effective embedded system which can transform text information into voice using the 2D AD code and Text To Speech (TTS). This voice information can also be transmitted to blind people as well as the old by capturing the AD code on paper or in books.
능성어(Epinephelus septemfasciatus) immunoglobulin M에 대한 단클론 항체 생산
김시우 ( Si-woo Kim ),김종오 ( Jong-oh Kim ),공경희 ( Kyoung-hui Kong ),오명주 ( Myung-joo Oh ),김위식 ( Wi-sik Kim ) 한국어병학회 2021 한국어병학회지 Vol.34 No.1
Immunoglobulin M (IgM) of sevenband grouper (Epinephelus septemfasciatus) was purified by mannan-binding protein (MBP) affinity column. The purified IgM had an apparent molecular weights of 76 (heavy chain) and 28 (light chain) kDa in sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). Eight hybridoma clones secreting monoclonal antibodies (mAbs) against sevenband grouper IgM were established. Antibody detection enzyme-linked immunosorbent assay (ELISA) with bovine serum albumin (BSA, antigen) and the 8 mAbs revealed that optical density (OD) values were clearly different between sera from BSA-immunization and non-immunization of sevenband grouper. These results suggest that the produced mAbs in this study are specifically reacted with IgM of sevenband grouper.
외성장 양상을 보인 유경성낭종에서 발현한 위장관간질종양
김시우 ( Si Woo Kim ),차성철 ( Sung Chul Cha ),조유진 ( Yoo Jin Cho ),박현근 ( Hyun Keun Park ),박성균 ( Sung Kyun Park ),강행지 ( Haeng Ji Kang ) 대한내과학회 2010 대한내과학회지 Vol.78 No.2
Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract, and cystic changes are commonly observed. However, there have been few reports of cases of exophytic pedunculated GIST with cystic changes. Here, we report a 45-year-old man who presented with a palpable mass in the left upper quadrant of the abdomen. The mucosal folds were endoscopically abnormal, but there was no mucosal lesion. Computed tomography demonstrated a large, low-density cystic lesion surrounding an enhanced nodule in the greater curvature of the gastric body, and there was no tumor infiltration to other organs. The patient underwent hemigastrectomy and the lesion was shown to be an exophytic pedunculated cystic tumor. Histopathological examination showed epithelioid cells with marked hemorrhaging. Immunohistochemical examination indicated that most of the tumor cell cytoplasm was positive for the c-kit protein (CD117) and CD34. The tumor was diagnosed as an exophytic pedunculated GIST of the stomach with cystic changes. (Korean J Med 78:222-225, 2010)
김시우(Si-Woo Kim),이재균(Jae-Kyun Lee),이채욱(Chae-Wook Lee),이동인(Dong-In Lee) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.7
Since a 2-dimensional (2D) bar code can retrieve data and information quickly, it is widely used and recognized as a useful tool for many industrial applications. However, the information capacity of the 2D bar code is still limited. Recently the analog-digital code (AD code), which has the largest storage capacity in the code, has been developed The AD code is expanding the bar code’s application range because it overcomes the limitation of data capacity. In this paper, we present the AD code and an effective embedded system which can transform text information into voice using the 2D AD code. We expect this voice information be transmitted to blind people by capturing the AD code on paper or in books.