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시각 장애인의 예방적 건강검진, 건강행태와 정신 건강에 대한 분석
심종우,한승한,Jong Woo Shim,Seung Han Han 대한안과학회 2012 대한안과학회지 Vol.53 No.12
Purpose: To better understand visual disabilities via preventative health examination, health behavior, and psychological health. Methods: The preventative health examination, health behavior, and psychological health records of 4,724 participants over the age of 40 who completed the third Korean National Health and Nutrition Examination Survey (KNHANES III) were analyzed. The participants were divided into 3 groups for analysis: subjects without disabilities, subjects with disabilities but without visual disabilities, and subjects with visual disabilities. The unadjusted mean and the adjusted mean for which socioeconomic factors were adjusted were calculated. Results: In the preventative health examination there were no differences between the 3 groups except for a statistically significant increase in the number of cholesterol check-ups in the visual disability group. In the health-related behavior analysis, lifetime smoking and routine physical activity were similar between the visual disability and no disability group, however, these factors were greater in the disability without visual disability group. The analysis of psychological health revealed that major depressive symptoms, suicidal ideation, suicidal attempts and psychological consultations were greater in the disability without visual disability and the visual disability groups compared to the participants without disability. However the overall number of psychological consultations was low. Conclusions: There was no difference in the frequency of preventative health examinations between each group. However, there was an increase in the prevalence of psychological problems in subjects with visual disabilities compared to subjects without disabilities and subjects with disabilities but without visual disabilities. Thus, ophthalmologists should consider psychological aspects when dealing with patients with visual disturbances.
심종우(Jongwoo Shim),조성진(Sungjin Jo),문병일(Byungil Moon) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
Waste glass from end of life vehicle (ELV) is currently lnadfilled or incinerated with automotive shredder residue(ASR) since recycling technology has not been developed. In this study, waste automotive glass has recycled as foaming glass with several steps of process which are removing PVB & solar control film, crushing the glass, mixing with glass, slag and foaming agents, and final foaming process in high temperature. Consequenlty, the recycled foaming glass has mechanical properties which can apply other industrial purpose such as construction material as sound proof-insulation.
습식 생산된 재생 잔골재를 사용한 콘크리트의 특성에 관한 연구
심종우(Shim Jong-Woo),유명열(Yu Myoung-Youl),이세현(Lee Sea-Hyun) 대한건축학회 2004 大韓建築學會論文集 : 構造系 Vol.20 No.12
The recycled fine aggregate produced by a existing method is not recommended to use recycled fine aggregate for production of quality concrete, considering that it increases the water demand of fresh concrete and lower the strength and probably the durability of hardened concrete. But, the recycled fine aggregate is becoming increasingly important for alternative of natural fine aggregate faced shortage. Therefore, in this study, I proposed a production method which are able to produce recycled fine aggregates for quality concrete with a classifier, and analyzed the quality of the recycled fine aggregate and comprehended the properties of recycled aggregates mortar using the recycled fine aggregate to review whether it can be put to practical use for concrete. In the experiment, recycled fine aggregate is substituted for natural fine aggregate the rate of 0, 25, 50, 75 and 100% each. The results of the study are as follows.<br/> 1) The air content is increased irregularly according to the increasing of substitutive ratio<br/> 2) The slump and loss of slump with time since mixing are decreased irregularly according to the increasing of substitutive ratio<br/> 3) The compressive strength of the mortar using the recycled fine aggregate tends to be increase until 25~50% substitution ratio, and than reduced with the increase of the mixing ratio of recycled fine aggregate<br/> Based on the above results, it is concluded that the recycled fine aggregate through the wet production process can be used as fine aggregate on condition that the substitution ration is under 50%.