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유건우,이선희,임수정,박형진,김태신,송은식,송근호 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2009 動物醫科學硏究誌 Vol.16 No.1
A 6 years old Schunauzer dog (7.2kg, intact female) with history of hematuria for two days was referred to the Veterinary Medical Teaching Hospital of Chungnam National University. Complete blood cell count showed no significant abnormalities and serum chemistry profile showed increased phosphate profile. On urinanalysis, there was evidence of bacterial infection. On ultrasonographic evaluation, irregular renal contour and increased echogenecity, pelvic and uretral dilation, and thickening of urinary bladder wall were observed. Based on these finding, the dog was diagnosed as pyelonephritis. The dog was treated with antibiotics based on antimicrobial susceptibility test results, then successfully resolved after 8 weeks of treatment.
김형우,이우태,김진환 全南大學校 觸媒硏究所 1997 觸媒硏究 論文集 Vol.19 No.-
The permeability and diffusivity of H₂, He, O₂, N₂, and CO₂in cellulose acetate membrane have been measured at temperatures from 10 to 60℃ and pressures up to 6Kg/cm². The membrane was prepared by casting cellulose acetate solution on a glass plate. In this process, the effect of evaporation time on characteristics of the membrane was discussed. The data for the gas diffusivity were obtained by the time lag method. At a given temperature and pressure, difference, the permeability and diffusivity were constant regardless of the increased of pressure difference, but increased exponentially with the increase of temperature. As the square of the gas molecular diameter increased, the diffusivities decreased exponentially and the activation energy for diffusion increased linearly. Much of the observed scatter in these correlations is attributable to uncertainty in the method of defining molecular diameters. On the other hand, the heat of solution decreased linearly with Lennard Jones force constant. With the exception of H₂and He, it is found that dissolution of the gases into the membrane was exothermic.
악성 점막하 종양과의 구별이 어려웠던 Gastritis Cystica Profunda 1예
선제형,박진석,한민석,김수항,김우진,박인형,이숭,유종선,박찬국 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.3
Gastritis cystica profunda (GCP) is a rare disease characterized by gastric foveolae elongation along with hyperplasia and cystic dilatation of the gastric glands extending into the tissue beneath the submucosa. GCP mainly develops at the gastroenterostomy stoma but can arise in a stomach that has not undergone surgery. The proposed pathogenesis is related to chronic inflammation, ischemia and the presence of a foreign body. GCP may present as a submucosal tumor, Polyp or a giant gastric mucosal fold. Endoscopic ultrasonography (EUS) is an effective diagnostic method for differentiating GCP from protruding and elevated gastric lesions. We report a case of GCP along with the endoscopic and EUS findings that were indistinguishable from a malignant submucosal tumor.
유기형,조동우,유지용,이진영,이상엽 대한건축학회 2004 대한건축학회논문집 Vol.20 No.5
The purpose of this study was to evaluate the indoor environment of office building with underfloor air distribution system and ceiling based air conditioning system. The underfloor air distribution system was introduced to use access floor and aim to economical motive such as reducing floor to height level. Researches were not sufficient to preserve the characteristics between ceiling based air conditioning system and underfloor air distribution system. Experiments have been carried out to indoor environment in the summer and winter. As the result, thermal environment of the underfloor air distribution system is better than ceiling based air conditioning system in the winter. Ventilation effectiveness of the underfloor air distribution system is bigger than ceiling based air conditioning system.
다발성 대장암 간전이 환자의 간절제를 위한 새로운 시도
주종우,김형철,임철완,신응진,조규석,유기원,송옥평,홍대식,박성진,조준희,이혜경,김희경,권계원,고은석 순천향의학연구소;Soonchunhyang Medical Research Institute 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2
Multiple bilobar liver matastases (MBLM) are the main cause of low resectability in the colon cancer liver metastases. The authors experienced one case of initially non-resectable colon cancer liver metastases. He was curatively and safely treated with a two-stage hepatectomy using the new method of future remnant liver volume growing. A 54-year-old man was referred to our department with the sigmoid colon cancer combined with MBLM, which were checked in two small metastatic lesions in the left lobe and five large sized lesions in the right lobe in the computed tomogram (CT). A laparoscopic assisted anterior resection was primarily performed. We performed the 1^(st) stage hepatectomy 3 weeks after the colon resection. Intra-operative Ultrasonogram (US) found 9 small superficial metastatic lesions in the left lobe. All that lesions were completely removed by non-anatomical wedge resection. An occlusion ballon catheter was placed in the right portal vein through a small branch of the inferior mesenteric vein at that time. The future remnant liver volume was sufficiently increased 3 weeks after the 1^(st) hepatectomy. A right hepatectomy was safely performed 22 days after the 1^(st) hepatectomy. The patient received a regional chemotherapy (interleukin2 based immuno-chemotherapy through hepatic artery) for 4 months, then received 9 cycles of systemic chemotherapy (biweekly Oxaliplation, leucovorin, plus 5-fluorouracil) without any recurrence evidence.
곰쓸개 복용 후 발생한 육안적 혈뇨와 신유두부 괴사증 1예
김우진,한민석,김수항,박인형,박진석,선제형,홍세인,박옥영,신정현,이숭,신병철 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.3
Renal papillary necrosis occurs most commonly in association with urinary tract infection, diabetes mellitus, sickle cell disease, vascular disease, and analgesic nephropathy. Clinical presentation may be related to symptoms of pyelonephritis such as flank pain, renal colic, hematuria, Proteinuria, recurrent fever. The necrotic tissue may be sloughed off, and the diagnosis can sometimes be made by finding piece of renal medullary tissue in the urine. Pyelography may demonstrate cavities and sinuses in the resion of papillae. Anuria & oliguria can lead to the acute renal failure, and especially prognosis and progress may be affect influenced by urinary infection. We report a case of renal papillary necrosis with ingestion of bear gallbladder. On pyelography, Persistent contrast is diagnostic clue of renal papillary necrosis. This case is not be related to urinary tract infection, but occurred acute renal failure. Expectant treatment was gone.
유한요소법과 경계요소법의 결합을 이용한 2차원접촉문제의 해석
정진형,우호길 충남대학교 공업교육연구소 1997 論文集 Vol.20 No.1
The coupled finite element method and boundary element method is applied to 2 dimensional elastic contact problem. Coupling the FEM and BEM is achieved by using the non-symmetric method which is a boundary element-like approach. In order to verify the method, the problems of simple cantilever beam and infinite plate with a circular hole are analysed. The results obtained the proposed method are compared with other numerical and analytic solutions, they are coincided well.
전자적 효과나 엔트로피 효과를 고려한 TFAP 유도체 탄산이온 선택성 물질의 합성
윤우진,이창석,전영무,변형정 광운대학교 기초과학연구소 1998 기초과학연구소논문집 Vol.27 No.-
Three analogs of ETH6024 were designed and synthesized as possible ionophores of carbonate ion considering the electronic effect of the para-substituents of the trifluoroacetophenone derivatives. In addition, the other three compounds were also designed and synthesized considering the entropic effect to form 1 : 1 complexes with carbonate ion. These syntheses were performed by N-alkylations of secondary amides followed by hydrolyses and trifluoroacetylbenzoylations.
황형진,안진우 경성대학교 공학기술연구소 2003 공학기술연구지 Vol.S1 No.1
In a switched reluctance motor drive, it is important to synchronize the stator phase excitation with the rotor position, because the position of rotor is an essential information. In the high-speed region, switching angles are fluctuated back and forth out of the preset value, which is caused by the sampling period of the microprocessor. In this paper, a low cost analog encoder suitable for practical applications is proposed. The validity of the proposed analog encoder with a proper logic controller is verified from the experiments.