http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김명수,임무승,정연두,김효준 三陟大學校 産業科學技術硏究所 2004 産業科學技術硏究論文集 Vol.9 No.1
In this paper, We researched the method analysing more easily the vibration source of motor to decrease trial and error in the vibration analysis when it is made high vibration in a big size motor driving vertical pump. According to this result, We made an easy calcalation expression to analysis the vibration source and decrease the vibration by eccentric ratio and clearance of bearing, deviation from roundness, slope of shaft, and slope of base plate, alignment variation by means of analysing the character of vibration happening to the degree. of inner clearance of motor.
김명수(Myeong Soo Kim),정환경(Hwan Kyeong Jeong),윤인영(In Young Yoon),남기대(Ki Dae Nam) 한국유화학회 2001 한국응용과학기술학회지 Vol.18 No.2
N/A White emission is important for applying organic EL devices to full-color flat panel display and backlight for liquid crystal display. In order to obtain white emission, the use of a light-emitting material which shows the white emission by itself is advantageous for these applications because of its high reliability and productivity. A chelate-metal complex such as zinc bis(2-(2-hydroxyphenyl) benzothiazolate) (Zn(BTZ)_2 was known to emit white light with a broad electroluminescence. In this study, the electroluminescent characteristics of Be(BTZ)_2 and Mg(BTZ)_2, as well as Zn(BTS)_2 were investigated using organic electroluminescent devices with the structure of ITO/TPD/ Be(BTZ)_2, Mg(BTZ)_2, or Zn(BTZ)_2/Al. It was found that the device containing Be(BTZ)_2 showed the highest power efficiency.
김명수(Myeong Soo Kim),정환경(Kwan Kyeong Jeong),정노희(Noh Hee Jeong),남기대(Ki Dae Nam) 한국유화학회 2001 한국응용과학기술학회지 Vol.18 No.2
N/A Acrylic quarternary polymers were synthesized to prepare high-solid coatings. Acrylic resins were synthesized by the radical polymerization of n-butyl acrylate, methyl methacrylate, 2-hydroxyethyl methacrylate and acetoacetoxyethyl methacrylate. From the results of experiment on reaction condition to get high-solid acrylic resins with 70% solid content and viscosity of 1200cps, it was found that di-tert-amyl peroxide among the four types of initiators have lower viscosity and higher degree of conversion. The optinum initiator amount, chain transfer agent, reaction temperature and the dropping time were 5wt%, 4wt%, 150℃ and 5hrs, respectively.
정재한 ( Jae Han Jung ),김명수 ( Myung Soo Kim ),임헌상 ( Heon Sang Lim ),김용수 ( Yong Soo Kim ) 한국품질경영학회 2013 품질경영학회지 Vol.41 No.4
Purpose: The purpose of this study was to estimate life time of halogen lamps and acceleration factors using accelerated life test. Methods: Voltage was selected as an accelerating variable through the technical review about failure mechanism. The test was performed at 14.5V, 15.5V and 16.5 for 4,471 hours. It was assumed that the lifetime of Halogen lamps follow Weibull distribution and the inverse power life-stress relationship models. Results: Mean lifetimes of pin and screw types were 19,477 hours and 6,056 hours, respectively. In addition,acceleration factor of two items are calculated as 4.8 and 2.2 based on 15.5V, respectively. Conclusion: The life-stress relationship, acceleration factor, and MTTF at design condition are estimated by analyzing the accelerated life test data. These results suggest that voltage was very important factor to accelerate life time in the case of halogen lamps and the life time of pin type is three times longer than screw type lamps.
N-아실아미노산계 계면활성제(제14보) Soium N-Acyl Sarcosinate 미셀형성에 있어 동력학적 고찰
김명수(Myung Soo Kim),김홍수(Hong Soo Kim),정환경(Hwan Kyeong Jeong),남기대(Ki Dae Nam) 한국유화학회 2000 한국응용과학기술학회지 Vol.17 No.2
Surface tension as a function of concentration and temperature was measured for aquous solution of sodium N-acyl sarcosinate, RCON(CH₃)CH₂ COONa, From the intersection points in the (γ-logC) curves, the critical micelle concentration (cmc) was determined at 20, 30, 40, and 50℃. Structural effects on the cmc maximum and the minimum area per molecule at the aquous solution/air interface were discussed. The free energy, enthalpy, and entropy of micellization and adsorption of surfactant solution also were investigated. Numberous investigators have dealt with sodium N-acyl sarcosinates and their applications as wettings, flooding and reducing agents and as corrosion inhibitors.
정해도,이주용,강동혁,고경태,고동훈,권오성,구교철,김광택,김명수,김범수,김현우,박주현,방우진,오경진,윤영은,이기수,이동섭,이상협,이승수,이헌주,정원호,조대성,조성용,추민수,최재영,최태수,한덕현,한병규,전승현,백성현,서일영,김형준 대한비뇨의학회 2023 Investigative and Clinical Urology Vol.64 No.4
This article provides evidence-based recommendations and expert opinions to aid urologists in making optimal decisions regarding managing urolithiasis in various clinical scenarios. The most frequently asked questions by urologists in their clinical practice have been collected and answered in the form of FAQs; based on the latest evidence and expert opinions. The natural history of urolithiasis is divided into active treatment and silent phases, with the active treatment stage divided into typical and special situations and peri-treatment management. The authors address 28 key questions, offering practical guidance for the proper diagnosis, treatment, and prevention of urolithiasis in clinical practice. This article is expected to be served as a valuable resource for urologists.