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최원일(Won Il Choi),박기혁(Ki Hyuk Park),김현호(Hyun Ho Kim),김증호(Jeoung Ho Kim) 대한인간공학회 2009 대한인간공학회 학술대회논문집 Vol.2009 No.11
This study was aimed to analyze for characteristics of Musculoskeletal disorders (MSDs) based on the industrial accident statistics. In this study MSDs cases of Food-Accommodation Industry in 2008, 352cases, were investigated. First of all, for the analysis of a wide view point concerning the characteristics of MSDs, We have inspected characteristics of the user population (i.e. age, gender, employed periods, etc.). Secondly, work-related risk factors such as repetitive motions, awkward postures were analyzed in terms of disease code, injured part of body, etc. Next, characteristics of handling of heavy materials were analyzed according to weight, agency of cause, etc. Finally, we have compared and analyzed the features between the period of hospitalization and other variables. In addition to that we also conducted statistics analysis. The study results showed that there were significant characteristics of MSDs that could be used as basis data for the MSDs prevention policy.
OMI 위성자료를 이용한 화산지역 고농도 이산화황 환경에서의 TOMS 오존과 DOAS 오존의 비교연구
최원이 ( Won Ei Choi ),홍현기 ( Hyun Kee Hong ),박준성 ( Jun Sung Park ),김대원 ( Dae Won Kim ),여재호 ( Jae Ho Yeo ),이한림 ( Han Lim Lee ) 대한원격탐사학회 2015 大韓遠隔探査學會誌 Vol.31 No.6
In this present study, we quantified the SO2 effect on O3 retrieval from the Ozone Monitoring Instrument (OMI) measurement. The difference between OMI-Total Ozone Mapping Spectrometer (TOMS) and OMI-Differential Optical Absorption Spectrometer (DOAS) total O3 is calculated in high SO2 volcanic plume on several volcanic eruptions (Anatahan, La Cumbre, Sierra Negra, and Piton) from 2005 through 2008. There is a certain correlation (R ≥ 0.5) between the difference and OMI-SO2 in volcanic plumes and the significant difference close to 100 DU. The high SO2 condition found to affect TOMS O3 retrieval significantly due to a strong SO2 absorption at the TOMS O3 retrieval wavelengths. Besides, we calculated the difference against various SO2 levels. There is the considerable difference (average = 32.9 DU; standard deviation = 13.5 DU) in the high OMI-SO2 condition (OMI-SO2 ≥ 7.0 DU). We also found that the rate of change in the difference per 1.0 DU change in middle troposphere (TRM) and upper troposphere and stratosphere (STL) SO2 columns are 3.9 DU and 4.9 DU, respectively.