http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
수도관로 소수력발전 운영효율 향상을 위한 최적제어 방안
홍정조(Hong, Jeong-Jo),임동희(Rim, Dong-Heui),김수상(Kim, Soo-Sang) 한국신재생에너지학회 2008 한국신재생에너지학회 학술대회논문집 Vol.2008 No.05
Using a surplus head in presented water supply pipes, we have studied to improve the operating efficiency of small hydro generator, which was chosen for a test model with Sung-Nam and Bo-Ryong small hydro power plant. With regard to power control and countermeasure of water hammer impact, Finally we have represented the optimal control method through the synthetical analysis of existing system symptoms, operation efficiency, the effect of water hammer impact and system configuration.
High prevalence of Enterococcus spp. from dogs with otitis externa
Jo, Hyun-Jung,Chae, Hee-Sun,Kim, Hyun-Ju,Kim, Min-Ju,Park, Gyu-Nam,Kim, Sang-Hun,Chang, Kyung-Soo The Korean Society of Veterinary Service 2012 韓國家畜衛生學會誌 Vol.35 No.2
Otitis externa (OE) is a frequent disease in the ear canals of dogs. To identify the pathogens causing OE in dogs and to determine their antimicrobial resistances, specimens were collected from animal hospitals in Daejeon. The isolates were examined by morphological and biochemical tests, 16S rRNA analysis and antimicrobial susceptibility tests. We analyzed correlation between the isolated pathogens and external factors of dogs such as breed, age, gender, ear mite, hair in ears and experience with antibiotic therapy. Thirty three strains of bacteria were isolated from 26 of the 68 heads of dogs with OE. The most isolated bacteria were Enterococcus faecalis (E. faecalis) followed by Staphylococcus aureus (Sta. aureus), Sta. pseudointermedius, E. faecium, E. avium and Streptococcus canis (Strep. canis) in order of frequency of occurrence. Isolation frequency of Enterococcus spp. and Staphylococcus spp. were 51.5% and 45.5%, respectively. E. faecalis and E. faecium isolates showed VanB phenotype, which is resistant to vancomycin but sensitive to teicoplanin were 58% and 25%, respectively. Nine isolates among total twelve isolates of E. faecalis were isolated from the dogs treated with antibiotics. There was no methicillin-resistant Sta. aureus (MRSA), but were MR-Sta. pseudointermedius (MRSP) (57.1%) and vancomycin-resistant (VR)-Sta. pseudointermedius (14.3%) (VRSP) showing VanB phenotype. However, vanA, vanB and vanC genes were not detected in VR isolates from the dogs. Taken together, VR-Enterococcus spp. (VRE) is one of the major pathogens in domestic animals, as well as community-and hospital-acquired infection.
Jo, Myung Hee,Kim, Joon Bum,Oh, Jeong Soo,Yeon, Sang Ho,Lee, Kwang Jae 대한원격탐사학회 2001 International Symposium on Remote Sensing Vol.17 No.1
The purpose of this study is to select the most effective method for detecting Bursaphelenchus Xydnphilus damaged area in Koje-do area, which is located in southern part of Korea using IKONOS images and GIS. This study extracted the front areas of B. Xylophilus by using lm spatial resolution, 4m Red(0.63-0.69) band, and NIR(0.7b-0.90) band. These bands are the same wavelength range as Landsat TM band 3, band 4. Moreover since they have higher spatial resolutions than Landsat TM, they have been used for lots of studies in the field of forest and vegetation. Also in this study used GPS(Global Positioning System) for selection of ground truth data and validation of Bursaphedenchus Xylaphilus damaged area. In this study IKONOS 1m and 4m images were significant available for detecting and identifying the front of damaged area by using spectral histogram analysis method than any other image processing methodology. Furthermore, this study could clarify spatial distribution characteristic of damaged area after constructing GIS Database. Finally, this study 15 points were verified as real damaged trees of 22 points extracted from GPS field survey, it might estimate that the 70 percent of them were damaged trees by B. Xylaphilus. This study was not only extracted the damaged trees by B. Xylophilus, but also suggested the possibility of using IKONOS images for the study on the forest damages by any disease and insect pests.
Effect of Lutein on L-NAME-Induced Hypertensive Rats
Sung, Ji Hoon,Jo, Young Soo,Kim, Su Jin,Ryu, Jeong Soo,Kim, Myung Chul,Ko, Hyun Ju,Sim, Sang Soo The Korean Society of Pharmacology 2013 The Korean Journal of Physiology & Pharmacology Vol.17 No.4
We investigated the antihypertensive effect of lutein on $N^G$-nitro-L-arginine methyl ester hydrochloride (L-NAME)-induced hypertensive rats. Daily oral administration of L-NAME (40 mg/kg)-induced a rapid progressive increase in mean arterial pressure (MAP). L-NAME significantly increased MAP from the first week compared to that in the control and reached $193.3{\pm}9.6$ mmHg at the end of treatment. MAP in the lutein groups was dose-dependently lower than that in the L-NAME group. Similar results were observed for systolic and diastolic blood pressure of L-NAME-induced hypertensive rats. The control group showed little change in heart rate for 3 weeks, whereas L-NAME significantly reduced heart rate from $434{\pm}26$ to $376{\pm}33$ beats/min. Lutein (2 mg/kg) significantly prevented the reduced heart rate induced by L-NAME. L-NAME caused hypertrophy of heart and kidney, and increased plasma lipid peroxidation four-fold but significantly reduced plasma nitrite and glutathione concentrations, which were significantly prevented by lutein in a dose-dependent manner. These findings suggest that lutein affords significant antihypertensive and antioxidant effects against L-NAME-induced hypertension in rats.
Jo. Yang-Hyeok,Rhie. Duck-Joo,Chang. Young-Soon,Hahn. Sang-June,Sim. Sang-Soo,Kim. Myung-Suk,Kim. Chung-Chin 대한생리학회 1991 대한생리학회지 Vol.25 No.1
Generally, it has been known that cholecystokinin (CCK) release into the plasma is under cholinergic control, but secretin release is not. Thus in anesthetized dogs we studied the effect of atropine (50 μg/kg followed by 50 μg/kg/hr) on pancreatic secretion and plasma concentrations of bioactive CCK and immunoreactive secretin in response to intraduodenal perfusion of sodium oleate (1, 3 and 9 mmol/hr). The volume, protein output and bicarbonate output of the secretion were increased by sodium cleats and this oleate-induced secretion was decreased significantly by atropine administration. However the increased plasma CCK and secretin levels by sodium oleate were not changed by atropine. These results indicate that atropine suppressed sodium oleate-induced pancreatic secretion through inhibiting cholinergic mechanism directly rather than decreasing the release of pancreatic secretory hormones. In another set of experiments, bilateral cervical vagi were stimulated electrically to observe the changes of pancreatic secretion and the above two plasma hormone levels in the presence or absence of atropine. In the vagally stimulated dogs, the volume, protein output and bicarbonate output of the pancreatic secretion were increased significantly. Both plasma secretin and CCK were concomitantly released significantly by vagal stimulation. Atropine significantly depressed the pancreatic secretory response as well as the release of these two pancreatic secretory hormones. Therefore, we conclude that in the presence of atropine the depressed pancreatic response to vagal stimulation is at least, in part, due to decreased release of endogenous CCK and secretin. In the vagally stimulated animals, however, the involvement of direct cholinergic influence on pancreatic exocrine gland remains to be answered.