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집단물리치료가 어깨수술환자의 우울수준 및 회복능력에 미치는 영향
이동진 ( Dong Jin Lee ),손기훈 ( Ki Hun Son ),조재석 ( Jae Seok Jo ),김현수 ( Hyun Soo Kim ) 대한통합의학회 2013 대한통합의학회지 Vol.1 No.1
Purpose : The purpose of this study was conducted to patients undergoing shoulder surgery rotator cuff tear group physical therapy to improve the patient`s level of depression and any impact on the shoulder`s ability to heal should learn. Method :: This research participated in 20 patients four weeks from June 11, 2012 June 8 il experiment was carried out. Experimental group conducted physical therapy(n=10) and control group(n=10) was not conducted Results :: A comparative analysis of experimental group and the control group in the levels of depression (BDI) was not significantly different. A comparative analysis of experimental group and the control group in the VAS was not significantly different. ROM(flexion, extension, abduction, and internal rotation) was significantly increased in the experimental group, whereas external rotation significantly did not increased. Conclusion : ROM of external rotation between the experimental and control groups, except for the change showed a statistically significant, the above findings, the level of pain and depression, there were no statistically significant differences.
노승백(Rho, Seung-Baik),이학일(Lee, Haakil),손기훈(Son, Ki Hun) 한국산학기술학회 2015 한국산학기술학회논문지 Vol.16 No.3
본 논문은 내화물 슬레이트용 고체윤활제를 제조하기 위하여 Starch 및 Graphite의 함량 변화를 통하여 점도, 마찰계 수 및 마모성능을 평가하여 Starch, Graphite와 water 간의 적절한 함량 조합을 찾고자 하였다. 먼저 starch 15 wt%일 때 점도는 graphite 함량에 따라 점도 상승이 커짐을 알 수 있었다. 또한 마찰계수 시험에서는 starch 15 wt%이고, graphite 30 wt%일 때 마찰계수가 가장 적었다. 이는 물의 함량이 줄어들고 고체의 비율이 높아짐에 따라 흡착력이 낮아져 표면에서 피막이 조금씩 탈락되며 마찰계수가 상승하는 것으로 판단된다. 마모 시험결과 starch 15 wt%이면서, graphite 25 wt% 혹은 30 wt%일 때 가장 양호한 결과를 얻었다. In order to produce an optimal performance solid lubricant used in the refractory slates, various compositions of starch, graphite and water were evaluated by testing their viscosity, coefficient of friction and wear performance. At 15% starch content, the degree of viscosity increment rose in proportional to graphite content and the lowest coefficient of friction was observed when the graphite content was at 30 wt%. Our results demonstrate that, as the water content decrease, the ratio of solid content increases, which compromises the surface coating resulting in increase of coefficient of friction. The best wear test result was obtained when the starch content was at 15 wt% with graphite content at either 25 wt% or 30 wt%.