http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Beta-lactamase 生成淋菌의 R-plasmid 安定性에 關한 硏究
金重煥,金在烘,高在炅,金永泰,梁仁燮 한양대학교 의과대학 1990 한양의대 학술지 Vol.10 No.1
Since its first isolation, penicillinase producing Neisseria gonorrhoeae(PPNG) has spread throughout the world and has become rampant in Korea, where its prevalence was over 50% in 1987. One of the most important factors in evaluating the possible spread of a bacterial R-plasmid is its stability. In this study, the stability of R-plasmid in PPNG was evaluated. The stability of the R-plasmid in 7 PPNG strains was determined. Strains were passaged every other day on chocolate agar for 3 weeks and on chocolate agar with 2μg of penicillin G per ml over 8 weeks. Then, all individual clones were tested with the chromogenic chphalosporn and representative clones were examined by agarose gel electrophoresis. Under passage on media without the antibiotic, plasmid loss was noted on 2 PPNG strains lacking the conjugative 25-megadalton(Md) plasmid(PPNG 69F, PPNG 413). Their plasmid loss were 1.7% and 17.2%, respectively. However, plasmid loss was not noted on the remaining 5 PPNG strains carrying the conjugative plasmid. Under passage on the antibiotic containing media, no plasmid loss was noted in any strain. The stability of the gonococcal R-plasmid in E. coli transformats, YMC-10(pNG 69F) and YMC-10 (pNG 132) was determined. Strains were passaged every other dayon Muller-Hinton agar and on Muller-Hinton agar with 30, 125, 250 and 500μg of ampicilin per ml for 3 weeks. Then all individual clones were examined for beta-lactamase production and reperesentative clones were examined by agarose gel electrophoresis. The plasmid loss was not noted in any strain. It is suggested that the R-plasmids of circulating PPNG in Korea are stable and the steep increase of PPNG prevalence in Seoul may be correlated with this high stability of the R-plasmid.
중복요도 (重複尿道) 의 부요도 (副尿道) 에만 발생한 PPNG 요도염
양인섭(In Sub Yang),최광호(Kwang Ho Choi),김재홍(Jae Hong Kim),김중환(Joong Hwan Kim),조광윤(Gwang Yoon Cho) 대한피부과학회 1985 대한피부과학회지 Vol.23 No.4
Urethral duplication is rare congenital anomaly. It may be complete or partial, We report a case of PPNG urethritis which limited to the accessory urethra and treated with kanamycin (2. 0gm, im), ampicillin(3. 5gm, po) and probenecid(l pgm, po) .
양인섭(In Sub Yang),이창우(Chang Woo Lee),김영태(Young Tae Kim),김중환(Joong Hwan Kim) 대한피부과학회 1985 대한피부과학회지 Vol.23 No.4
Erythromelanosis follicularis faciei et coli is a pigmentary disorder of unknown cause originally described by Kitamura et al in 1960. We describe two cases of erythromelanosis follicularis faciei et colli occured in adolescence. Clinical features of these patients were consistent with the clinical changes described in previous cases having clinical triad of erythema, hyperpigmentation and follicular papules. This pigmentary disorder may not be an uncommon disease, however it might be neglected from the concern of the dermatologists.
정속 피치제어형 풍력터빈의 풍속별 운전특성 및 난류에 따른 영향 분석
양인섭(Inseop Yang),양경부(Kyoungboo Yang),허수영(Sooyoung Her),허종철(Jongchul Huh) 대한기계학회 2019 大韓機械學會論文集B Vol.43 No.9
풍력터빈의 운전 특성을 이해하는 것은 풍력터빈을 안정적으로 운영할 수 있도록 도와주며, 풍력터빈 시스템을 향상시키기 위한 정보를 제공할 수 있다. 본 연구에서는 운영 중인 660kW 용량의 정속형 풍력터빈을 대상으로 SCADA 시스템에서 수집된 운전 데이터를 이용하여 풍속별 출력, 로터 회전수, 블레이드 피치각 및 주요 부품의 온도 변화를 분석하였다. 또한, 난류에 따른 운전 특성을 파악하기 위하여 분석 데이터를 정상난류모델에 의한 풍속별 난류 강도로 구분하여 난류에 따른 운전 특성 변화를 논의하였다. 난류 강도에 따른 풍속별 에너지밀도 분석을 통해 고난류인 경우 저난류에 비해 좀 더 많은 에너지를 가지고 있어 출력이 상승하는 효과가 있으나 고풍속 구간에서는 출력 제어 과정에서 난류성분 중 낮은 풍속 영역에 대응하여 로터회전수가 낮아지고 출력이 감소하고 있음을 확인하였다. Understanding the operation characteristics of a wind turbine can help ensure its stable operation as well as provide information to improve the wind turbine system. In this study, the power output, rotor RPM, blade pitch angle, and major component temperature variations by the wind speed of a fixed-speed-type wind turbine were analyzed using the operation data collected from the SCADA system. In addition, the operation characteristics according to the turbulence were analyzed with the turbulence data divided into high turbulence and low turbulence. The analysis of energy density according to turbulence intensity shows that the power output increased because it has more energy in the case of high turbulence than in low turbulence. However, in the high wind speed section, high turbulence showed that the rotor RPM and power output decreased owing to the power control.
Disk - Prediffusion Method 에 의한 Spectinomycin 내성 임균주의 검색
양인섭(In Sub Yang),김영태(Young Tae Kim),김중환(Joong Hwan Kim) 대한피부과학회 1986 大韓皮膚科學會誌 Vol.24 No.5
In 1982, we reported a case of recalcitrant urethritis caused by a strain of spectinomycin resistant PPNG. It caused a great fear that it might be the signal of an end of spectinomycin era, The disk-prediffusion method was used on all isolates from the Choong-Ku VD Clinic between August 1984 and December 1985 to screen out strains of N. gonorrhoeize resistant to spectinomycin, with disks containing 100pg of spectinomycin, Strains with inhibition zone greater tha.n 25 mm were considered susceptible, We could not disclose a single strain which wa.s resistant to spectinornycin, The reason why we do not see any more of spectinomycin. N. gonorrhoeae requires some speculation, It is possible that the mutant which had resistant to spectinornycin might not have teen quite stable and, after series of passage through human hosts, mutated back to original spectinornycin sensitive states. It is suggested that continual surveillance for spectinomycin resistant N. gonorrhoeae should be conducted.