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초음파 영상을 이용한 흡기근 강화 운동과 유산소 운동이 비활동적 성인의 호흡기능에 미치는 영향
강슬기(Seul-Ki Kang),박지혜(Ji-Hye Park),이수연(Su-Yeon Lee),이슬인(Seul-In Lee),최단(Dan Choe),정찬주(Chan-Joo Jeong),강효정(Hyo-jeong Kang),유영대(Young-Dae Yoo) 대한심장호흡물리치료학회 2019 대한심장호흡물리치료학회지 Vol.7 No.1
Purpose : The purpose of this study was to investigate the effects of inspiratory muscle training and aerobic exercise on respiratory function in sedentary adults. Methods : This study was performed on 19 subjects. They were divided into two groups; inspiratory muscle training with ultrasound image(n=10), aerobic exercise(n=9). Both of group performed the exercise 3 times a week for 4weeks. The data was analyzed by the wilcoxon test to compare before and after significant difference of factors on each groups and the mann-whitney test to compare two groups. Results : The results were as follows. There was statistically no significant difference on FVC, FEV1, VC, IC between the groups(p<.05). Conclusion : As a result of this study, it seems that inspiratory muscle training with ultrasound image might be effective like aerobic exercise for sedentary adults.
다이캐스팅용 알루미늄 합금 브레이크 페달의 내구성 해석
조승현(Seunghyun Cho),강슬기(Seul-Ki Kang),김한구(Hangoo Kim) 한국생산제조학회 2016 한국생산제조학회지 Vol.25 No.3
Computer-Aided Engineering (CAE) durability analysis and experiments of an aluminum alloy brake pedal were carried out for the car lighter by die casting method. In the CAE analysis, KS standards and criteria of the Volvo Car Corporation were applied, and in the experiment, KS standards were applied. The CAE analysis results show that aluminum alloy brake pedals are stronger than the conventional steel brakes pedals because the yield strength of the aluminum alloy increased by almost 97% over that of steel. Further, the structures of the cylinder and the frame were reinforced with increasing thickness of flame and were changed to suit the die-casting process. Through a durability test based on the KS standard, the strength of a prototype of the aluminum alloy brake pedal was confirmed to be sufficient.