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아파트 건축 작업장에서 사용되는 에피클로로하이드린-비스페놀A의 노출 평가: 파일럿 연구
신원호 ( Wonho Shin ),문찬석 ( Chan-seok Moon ) 한국산업보건학회 (구 한국산업위생학회) 2016 한국산업보건학회지 Vol.26 No.4
Objectives: The study is to evaluate biological monitoring and risk assessment for epichlorohydrin-bisphenol A resin exposed from waterproofing or finishing work in the apartment building construction. Methods: Subjected workers were working on spray-painting and waterproofing work for 8 hours per day every 20 days. The urine samples were collected at the end of 20 days working period. For urinary bisphenol A as metabolite from epichlorohydrinbisphenol A exposure, urine samples were analyzed with liquid chromatography mass-mass spectrometry(HPLC-MS/MS). Results: Geometric means of urinary bisphenol A(BPA) with no hydrolysis and with enzymic hydrolysis(BPA-EH) in the workers were 1.10 μg/L and 2.90 μg/L. BPA-EH was 4 times higher than that of control group. The factors for working period and ages did not affect the variation of BPA and BPA-EH. The levels for BPA and BPA-EH were not higher than 95th percentile for exposure on human-life environment. Conclusions: The BPA and BPA-EH were therefore effective biological markers for epichlorohydrin-bisphenol A exposure workers, but not seem to hazardous exposure level. Waterproofing work in construction workshop is required to measuring work environment and health care management for the workers.
스마트 미디어 효능감과 아이패드를 통한 학습 능력간의 관련성 연구 : 아이패드를 통한 학습 능력과 인쇄 매체를 통한 학습 능력간의 차이와 스마트 미디어 효능감의 상관관계 분석
김정욱(Joungwook Kim),방현덕(Hyunduk Bang),신원호(Wonho Shin),강태우(Taewoo Kang),권미홍(Mihong Gwan),김주환(Joohan Kim) 한국HCI학회 2011 한국HCI학회 학술대회 Vol.2011 No.1
본 연구의 목적은 스마트 미디어에 대한 효능감과 태블릿 PC를 통한 학습 능력 간의 관련성을 밝히는 것이다. 이를 위해 스마트 미디어에 대한 효능감 측정 도구로서 Compeau와 Higgins의 컴퓨터 효능감 도구를 기초로 측정 방법을 개발하였다. 그리고 스마트 미디어 효능감 및 각 세부 평가 요소 간의 상관관계를 밝히고 실제 실험을 통하여 타당성을 검증하였다. 또한 인쇄매체를 통한 학습 능력 측정 결과를 아이패드(iPad)를 통한 결과 차이와 비교해이와 스마트 미디어 효능감 지수의 연관성을 단순회귀분석을 통해 알아보았다. 그 결과 스마트 미디어에 대한 효능감이 높은 사람일수록 인쇄매체를 통한 학습효과와 아이패드를 통한 학습효과 사이의 차이 수준이 낮은 것으로 나타났다. A purpose of this study is to examine a relationship between smart media efficacy and the learning ability with tablet PC (the iPad). In order to estimate subjects' smart media efficacy, researchers designed evaluation method based on Compeau & Higgins computer efficacy tool and analyzed correlations among the concept's sub-elements. In addition, this study discovered that differences between paper test results and the iPad test results have correspondence with subjects' smart media efficacy. This research strongly proved that the one with the higher smart media efficacy tends to have less deviation between learning ability on papers and on the smart media, the iPad.
핸즈프리 트렁크 모듈을 위한 킥 인식 알고리즘 및 테스트방법
송봉기(Bonggi Song),권대욱(Daewook Kwon),구원(Won Ku),이석우(Seagwoo Lee),유종일(Jongil Yu),신원호(Wonho Shin),서해진(Haijin Seo) 한국자동차공학회 2014 한국자동차공학회 학술대회 및 전시회 Vol.2014 No.11
Recently, The needs for convenience of a driver are increased. One of the requirements of the user experience is the development of hands-free trunk module. This module can be operated by user kick when a user carry things or hold umbrella in rainy weather. In this paper, we suggest a hands-free trunk module based on kick recognition algorithm. Also we suggest a testing method for it. The suggested system uses two electrostatic capacitance sensors. The upper sensor is used to indicate user access, and the other sensor is used to recognize user kick. We also propose a testing method for hands-free trunk module using image processing..