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자연과학편 : 농촌 여성 노인의 활동체력과 삶의 질 분석
이상민(SangMinYi),서충진(ChungJinSeo),정희석(HeeSurkJeong),고영완(YoungWanKo),문채련(CheaRyeonMoon),김인홍(InHongKim),김명진(MuyngJinKim),한동성(DongSangHan) 한국체육학회 2007 한국체육학회지 Vol.46 No.5
본 연구는 노인이 자립하여 일상생활을 영위하는데 필요한 생활 능력의 체력을 활동체력으로 정의하고 농촌 노인여성들의 활동체력의 수준과 변화 양상과 삶의 질에 대한 연령대별 차이에 대한 분석이 연구의 목적이다. 연구의 대상은 충북 Y군에 거주하는 258명을 대상으로 악력, 배근력, 상완굴신력, 의자에 앉았다 일어서기, 좌전굴, 견관절 유연성 검사, 눈감고 외발서기, 눈뜨고 외발서기, 2.45m 반환점 돌아와 앉기, 누웠다 일어서기, 전신반응, 2분간 걷기를 실시하였으며, 또한 삶의 질 검사를 실시하였다. 자료 분석결과 누었다 일어서기, 눈감고 외발서기, 전신반응에서 연령증가에 따른 p<0.05수준에서 유의한 차이가 없었으나, 삶의 질 중 건강상태와 자아존중감에서 유의한 차이가 있는 것으로 나타났다. 한편, 농촌노인들의 활동체력을 75페센타일 이상을 가지게 되면 이상적인 활동체력 수준이라 생각된다. The purposes of this study were determined status of physical fitness on daily living of elderly female in the living rural community. The first study was designed to analysis of changes of physical fitness of daily living and quality of life by according to the aging in the 258 women, age from 60 to 79, twelve items of physical fitness on daily living and six category of a quality of life were measured. The data obtained from the tests were analyzed utilizing one-way ANOVA. The result of the present study was follows: The values of one leg standing with eyes closed, reaction time, 2 min walking ware non significantly difference with aging(p<0.05). The ideally goal of the physical fitness on daily living was 75 percentiles. Subcategory of quality of life were significantly difference only health condition, self-consciousness. This suggests that elderly women living in rural community need exercise programs emphasizing different fitness aspects in order to improve physical fitness of daily living, and Quality of Life.
Fabrication of Gd Containing Duplex Stainless Steel Sheet for Neutron Absorbing Structural Materials
최용,문병문,손동성 한국원자력학회 2013 Nuclear Engineering and Technology Vol.45 No.5
A duplex stainless steel sheet with 1 wt.% gadolinium was fabricated for a neutron absorbing material with high strength,excellent corrosion resistance, and low cost as well as high neutron absorption capability. The microstructure of the as-cast specimen has typical duplex phases including 31% ferrite and 69% austenite. Main alloy elements like chromium (Cr), nickel (Ni), and gadolinium (Gd) are relatively uniformly distributed in the matrix. Gadolinium rich precipitates were present in the grains and at the grain boundaries. The solution treatment at 1070 ºC for 50 minutes followed by the hot-rolling above 950 ºC after keeping the sheet at 1200 ºC for 1.5 hours are important points of the optimum condition to produce a 6 mm-thick plate without cracking.