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MODIS 자료의 에어로졸의 광학적 두께를 이용한 제주지역의 지표면 PM<sub>2.5</sub> 농도 추정
김관철 ( Kwanchul Kim ),이다솜 ( Dasom Lee ),이광열 ( Kwang-yul Lee ),이권호 ( Kwonho Lee ),노영민 ( Youngmin Noh ) 대한원격탐사학회 2016 大韓遠隔探査學會誌 Vol.32 No.5
In this study, correlations between Moderate Resolution Imaging Spectroradiometer (MODIS) derived Aerosol Optical Depth (AOD) values and surface-level PM<sub>2.5</sub> concentrations at Gosan, Korea have been investigated. For this purpose, data from various instruments, such as satellite, sunphotometer, Optical Particle Counter (OPC), and Micro Pulse Lidar (MPL) on 14-24 October 2009 were used. Direct comparison between sunphotometer measured AOD and surface-level PM<sub>2.5</sub> concentrations showed a R<sup>2</sup> = 0.48. Since the AERONET L2.0 data has significant number of observations with high AOD values paired to low surface-level PM<sub>2.5</sub> values, which were believed to be the effect of thin cloud or Asian dust. Correlations between MODIS AOD and PM<sub>2.5</sub> concentration were increased by screening thin clouds and Asian dust cases by use of aerosol profile data on Micro-Pulse Lidar Network (MPLNet) as R<sup>2</sup> > 0.60. Our study clearly demonstrates that satellite derived AOD is a good surrogate for monitoring atmospheric PM concentration.
키네시오 테이핑이 허리뼈 불안정성을 가진 대상자의 통증감소 및 기능장애 개선에 미치는 효과
조효신 ( Cho Hyoshin ),원종혁 ( Weon Jonghyuck ),이권호 ( Lee Kwonho ),차현규 ( Cha Hyungyu ) 대한통합의학회 2020 대한통합의학회지 Vol.8 No.3
Purpose : The purpose of this study is to investigate the instant effect of Kinesio taping on pain decrease and improvement of functional disorder of the subjects who have lumbar instability. Methods : A total of 20 patients (13 men and 7 women) who have lumbar instability were chosen as the subjects. The experiment was conducted by assigning the subjects into Kinesio taping group and placebo taping group. A visual analog scale (VAS) was used to measure back pain and Biering-Sorensen test was applied to measure the muscle endurance of back extensor muscles. A digital dynamometer was used to test the isomeric contraction strength of lumbar extensor muscle. The subject performed single-leg stance and double-leg stance task and their static balancing ability was measured by a testing device that captures the static balancing ability. Results : In a within-group comparison, Kinesio taping group showed a significant decrease of VAS (p<.05) and a significant increase of endurance and strength of lumbar extensor muscle (p<.05). In Kinesio taping group, the shift distance in anterior-posterior sway and medial-lateral sway during the double-leg stance significantly decrease (p<.05). The shift distance in anterior-posterior sway and medial-lateral sway also significantly decreased during the single-leg stance (p<.05). Placebo taping group showed a significant decrease of visual analog scale (p<.05). In a between-group comparison, Kinesio taping group showed a significantly larger decrease of VAS (p<.05), significant larger increase of muscle endurance and muscle strength (p<.05), and significant larger decrease of anterior-posterior sway in the double-leg stance (p<.05), compared to placebo taping group. Conclusion : Application of Kinesio taping to the subjects with lumbar instability produced positive effect of reducing pain, increasing muscle strength and endurance, and improving static balancing ability.