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신명수,문일성,나영인,박종천,Shin, Myung-Soo,Moon, Il-Sung,Nah, Young-In,Park, Jong-Chun 한국군사과학기술학회 2011 한국군사과학기술학회지 Vol.14 No.1
This paper presents bubble wake measurement results generated by the planing hull. The bubble was generated by SNAME TMB model(No. 4876) with hard chine at the CWC(Circulating Water Channel). ABS(Acoustic Bubble Spectrometer) was used to measure bubble wake measurement. The manufactured model is one meter in length and uniform velocity to generate the bubble at CWC is 3m/s, relatively higher speed than conventional hull form. Measurements were performed successfully and measured results show well the general characteristics of bubble wake generated by planing hull. Furthermore, experimental equations are proposed for the practical use.
신명수,문일성,나영인,박종천,Shin, Myung-Soo,Moon, Il-Sung,Nah, Young-In,Park, Jong-Chun 한국군사과학기술학회 2011 한국군사과학기술학회지 Vol.14 No.2
This paper presents the experimental result to investigate the characteristics of turbulent wake generated by submarine. A SUBOFF nude model which was assumed as an axial -symmetric body was used to create wake, and a thin strut was mounted on the top of the model. The experiments were conducted in a circulating water channel(CWC), and a hot-film was used to measure the turbulence in wake cross-section at the distance range of 0.0~2.0L from the model. The hot film anemometer measured turbulent velocity fluctuations, and the timeaveraged mean velocity and turbulent intensity are obtained from the acquired time-series data. Measured results show well the general characteristics of turbulent intensity, kinetic energy and mean velocity distribution. Also, experimental equations are derived. These experimental equations show well the general characteristics of the turbulent wake behind the submerged body with simple configuration.
신명수,최현종,정경현,임정철,김경수,이완규 한국축산식품학회 2012 한국축산식품학회지 Vol.32 No.1
The purpose of this study was to isolate bacteriocin-producing bacteria with antagonistic activities against pathogens from the intestines of pigs for probiotic use. Lactobacillus sp. AP 116 possessing antimicrobial property was selected from a total of 500 isolates. The AP 116 strain showed a relatively broad spectrum of inhibitory activity against Listeria monocytogenes,Clostridium perfringens, Pediococcus dextrinicus, and Enterococcus strains using the spot-on-lawn method. Bacteriocin activity remained unchanged after 15 min of heat treatment at 121oC and exposure to organic solvents; however, it diminished after treatment with proteolytic enzymes. Maximum production of bacteriocin occurred at 34oC when a pH of 6.0 was maintained throughout the culture during fermentation. According to a tricine SDS-PAGE analysis, the molecular weight of the bacteriocin was approximately 5 kDa. The isolate tolerated bile salts and low pH, and also induced nitric oxide (NO) in mouse peritoneal macrophages. Bacteriocin and bacteriocin-producing bacteria, such as Lactobacillus sp. AP 116, could be potential candidates for use as probiotics as an alternative to antibiotics in the pig industry.
박원진,이태희,신명수 大韓成形外科學會 1999 Archives of Plastic Surgery Vol.26 No.3
A muscular calf is esthetically unappealing in Asian women. Treatment by liposuction alone has poroven to be difficult due to a small amount of fat. We established a new method of transecting half of the gastrocnemius tendon in order to improve the contour of the calf. Thirty-five patients were operated on during the past 3 years. The medial or lateral half of the gastrocnemius tendon was cut using an endoscopic-guided 3M AGEE blade through a 1cm-sized incision. The portion of the muscle above the site of the transection was elevated from the underlying soleus muscles. We checked the calf circumference and evaluated the clinical results at 6 months postoperatively. An average 10% reduction in calf circumfernce was measured, showing a significant esthetic improvement. There were no significant changes in gait analysis or in the Cybex test. There were no specific complications related to the procedure. Through our clinical experience in 35 cases, we were able to prove that tenotomy is a effective, simple and easy method without severe morbidity.