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백강현,이현경,이경현,김하영,박중원,이보람,허지웅,이명헌,배유찬,Baek, Kang-Hyun,Lee, Hyun-Kyoung,Lee, Kyung-Hyun,Kim, Ha-Young,Park, Jung-Won,Lee, Bo-Ram,Her, Ji-Woong,Lee, Myoung-Heon,Bae, You-Chan 대한수의학회 2014 大韓獸醫學會誌 Vol.54 No.4
A calf suffering from diarrhea was admitted to the Animal and Plant Quarantine Agency for diagnostic evaluation. Postmortem examination revealed that the mesenteric lymph node was enlarged and small intestine wall was thin. Microscopically, a large number of small round organisms were attached to the small intestine villi. Villous atrophy and proprial neutrophil infiltration were also observed. Based on modified Ziehl-Neelsen staining, electron microscopy, and ELISA results, the calf was diagnosed with fatal cryptosporidiosis.
정예지,정지열,허지웅,백강현,이종형,이명헌,윤순식,Jeong, Yea-Ji,Jung, Ji-Youl,Her, Ji-Woong,Baek, Kang-Hyun,Lee, Jong-Hyeong,Lee, Myoung-Heon,Yoon, Soon-Seek 대한수의학회 2015 大韓獸醫學會誌 Vol.55 No.2
Four 3-day-old piglets with retarded growth were submitted to the Animal and Plant Quarantine Agency for diagnosis. Necropsy showed that one piglet had black spots ranging from 2 mm to 1 cm in diameter in the cerebellum, lungs, regional lymph nodes, and cecum. Histological findings were consistent with the gross appearance in which melanin pigmentation was observed in the organs mentioned above. Based on Fontana-Masson staining, we diagnosed this animal with systemic melanosis. To the best of our knowledge, this is the first case of systemic melanosis in black breeds of swine in Korea.
류문영,정지열,이경현,허지웅,배유찬,이현경,백강현,이보람,진영화,김재명,이명헌,윤순식,Rhyoo, Moon-Young,Jung, Ji-Youl,Lee, Kyung-Hyun,Her, Ji-Woong,Bae, You-Chan,Lee, Hyun-Kyoung,Baek, Kang-Hyun,Lee, Bo-Ram,Jean, Young-Hwa,Kim, Jae-Myung 대한수의학회 2013 大韓獸醫學會誌 Vol.53 No.4
Two Korean black goat (approx. 2 and 3 years old) showing diarrhea and chronic weight loss were submitted to Animal and Plant Quarantine Agency. At necropsy, there were thickening of small intestine and enlargement of mesenteric lymph nodes. Microscopically, they had granulomatous enteritis in the small and large intestine and granulomatous lymphadenitis. By polymerase chain reaction (PCR) and acid fast stain, strong positive reaction and acid-fast rod bacteria were detected. According to the result of histopathology and PCR, we confirmed this case as Johne's disease. As far as we know, this is the first report of Johne's disease in Korean black goat.
임지희 ( Ji Hee Lim ),이현경 ( Hyun Kyoung Lee ),이경현 ( Kyung Hyun Lee ),백강현 ( Kang Hyun Baek ),이명헌 ( Myoung Heon Lee ),최은진 ( Eun Jin Choi ),배유찬 ( You Chan Bae ) 한국동물위생학회 2015 韓國家畜衛生學會誌 Vol.38 No.3
Epitheliogenesis imperfecta is a congenital disease in which localized or widespread defect areas of squamous epithelium of the skin. Epitheliogenesis imperfecta is rare anomaly of calves, piglets, foals, lambs, puppies, and kittens. Three cases of epitheliogenesis imperfecta in Korean indigenous calves were diagnosed in animal and Plant Quarantine Agency in 2011∼2014. In this paper, we tried to report them in detailed and compare with similar cases occurred in other countries.
가우시안 군집분석을 이용한 천리안 위성의 대기운동벡터 표적추적 알고리듬 개발 및 분석
오유림 ( Yu Rim Oh ),김재환 ( Jae Hwan Kim ),박형민 ( Hyung Min Park ),백강현 ( Kang Hyun Baek ) 대한원격탐사학회 2015 大韓遠隔探査學會誌 Vol.31 No.6
Atmospheric Motion Vector (AMV) from satellite images have shown Slow Speed Bias (SSB) in comparison with rawinsonde. The causes of SSB are originated from tracking, selection, and height assignment error, which is known to be the leading error. However, recent works have shown that height assignment error cannot be fully explained the cause of SSB. This paper attempts a new approach to examine the possibility of SSB reduction of COMS AMV by using a new target tracking algorithm. Tracking error can be caused by averaging of various wind patterns within a target and changing of cloud shape in searching process over time. To overcome this problem, Gaussian Mixture Model (GMM) has been adopted to extract the coldest cluster as target since the shape of such target is less subject to transformation. Then, an image filtering scheme is applied to weigh more on the selected coldest pixels than the other, which makes it easy to track the target. When AMV derived from our algorithm with sum of squared distance method and current COMS are compared with rawindsonde, our products show noticeable improvement over COMS products in mean wind speed by an increase of 2.7 ms_1 and SSB reduction by 29%. However, the statistics regarding the bias show negative impact for mid/low level with our algorithm, and the number of vectors are reduced by 40% relative to COMS. Therefore, further study is required to improve accuracy for mid/low level winds and increase the number of AMV vectors.
한국 동물의 중독성 질병 발생상황 (1974년~2013년 6월)
이현경(Hyunk Young Lee),배유찬(You Chan Bae),이보람(Bo Ram Lee),이경현(Kyung Hyun Lee),백강현(Kang Hyun Baek),이명헌(Myoung Heon Lee) 대한수의학회 2013 大韓獸醫學會誌 Vol.53 No.3
Animal poisoning has been occurred in Korea. However, the lack of the data about animal poisoning in Korea makes clinicians and diagnostician difficult to obtain information on poisoning cases. In this paper, we tried to gather information about animal poisoning from 1974 to June 2013 in Korea. Animal and Plant Quarantine Agency (QIA) record database were used to examine recent trends in animal poisoning. The analysis showed that the cattle was reported to be the most common species involved in animal poisoning and botulinum toxin constituted the primary group of toxicants. Animal poisoning occurred frequently on January and in Gyenggi-do. Although the data present in this manuscript is a little, it will be helpful to understand the general trend of animal poisoning in Korea.
백강현,윤기영,최호정,정성목,이영원,조성환,박성준 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2011 動物醫科學硏究誌 Vol.18 No.1
Fine needle aspiration(FNA) cytology is considered as the diagnostic technique of choice in the assessment of swellen lymph nodes. The aim of this study is to determine the indication and diagnostic method of FNA of lymph node lesions performed at Veterinary Medicine Teaching Hospital of Chungnam National University. The records of 16 patients which had undergone FNA during the study period were retrieved. The cytological results were classified as lymphadenitis, lymphoid hyperplasia and lymphoma. Lymphoma cases were classified as B-cell origin and T-cell by immunophenotyping. The result of the FNA cytological diagnosis showed that nine (56%) of the patients were lymphoma, five (31%) of the patients were lymphoid hyperplasia and two (13%) of the patients were lymphadenitis.