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이명화(Lee M.H),신상윤(Shin S.Y),김효철(Kim H.C),김영수(Kim Y.S) 고신대학교 전인간호과학연구소 2008 전인간호과학학술지 Vol.3 No.-
Purpose: The purpose of this study was to investigation Nutrition status assessment use for MNA in Elderly community. Method: They were surveyed by interview using a closed-ended questionnaire. The survey was done from from Aug. to Sep.2004,two months. Results: The MNA score showed significant difference in : urban(t=-3,617,p= .000), protestant(t=3,568, p= .017), living along group(t=3,2367, p= .026), regular diet(t=3,2367, p= .026). Conclusion: It is necessary to develop Nutritional Status in community health promotion program.
임현택(H. T. Lim),이명화(M. H. Lee),김필규(P. K. Kim),박종복(J. B. Park),정성호(S. H. Jeong) 한국레이저가공학회 2009 한국레이저가공학회지 Vol.12 No.3
Experimental results for the laser shock peening of stainless steels, duplex stainless steel and STS304, for the enhancement of surface hardness are reported. A high power Nd:YAG laser (532 nm, 2nd harmonics) was used to irradiate the workpiece in water at the irradiances of 5, 10, 15 GW/cm2. The surface of a workpiece was covered with Fe or Al foil for protection of the original surface and reduction of laser reflection. The laser pulse densities were varied from 25 pulse/mm2 to 75 pulse/mm2. In the case of the STS304, the surface hardness increased with increasing pulse density and the maximum increase of about 29% was achieved using Fe foil at 10 GW/cm2 and 75 pulse/mm2 conditions. The maximum increase in surface hardness of duplex stainless steel was about 8% at 10 GW/cm2 and 75 pulse/mm2 with also Fe foil. In the case of the Al foil, less increase of surface hardness was obtained, possibly due to the thermal expansion effect.
김필규(P. K. Kim),이명화(M. H. Lee),정성호(S. H. Jeong) 한국레이저가공학회 2008 한국레이저가공학회 학술대회 논문집 Vol.2008 No.-
Duplex stainless steel is a preferred material for a high temperature and pressure pump of a seawater desalination plant due to its high corrosion resistance and hardness. Despite the good hardness of duplex stainless steel, rotating pump components such as ring, bush, or sleeve require regular replacements due to friction wear, requiring surface treatment of those rotating components for obtaining higher surface hardness. In this work, experimental results for CW laser heat treatment and laser peening of duplex stainless steel for an enhancement of surface hardness are reported. In CW laser heat treatment, irradiation with a Nd-YAG laser and quenching with liquid nitrogen was carried out. while in laser peening a pulsed Nd-YAG laser irradiation was conducted in a water chamber. The results revealed that CW laser irradiation could not improve surface hardness of duplex stainless steel, whereas laser peening showed evidences of surface hardness improvement.
박경희,이명화,이유정,홍경화 이화여자대학교 의과대학 1981 梨花醫學誌 Vol.- No.13
This study was designed to determine and report the Sodium and Potassium contents in Korean beverages, teas, milk, alcoholic liquors and instant foods and to give a help to the diet pattern of the patients who need low-sodium diet. The Sodium and Potassium contents of them were determined with flame photometer (Coleman Model 51). The results obtained are as follows: 1) The quantity of sodium in instant foods is high and that of alcoholic liquors is low. 2) The amount of Potassium in teas is high and that of alcoholic liquors is low. 3) Potassium to Natrium ratio in teas is high, that in instant foods is low.