• 한국안전학회지
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• 제31권2호
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• pp.104-111
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• 2016

Our nation has experienced remarkable growth over the half a century. Nonetheless, there is still much room for improvement in the area of Environment, Health and Safety (EHS). In particular, frequency and severity of industrial accidents did not considerably improve compared to the economic and social progress we made. The main objective of this research is to analyze what plans and actions are required for companies to promote industrial safety by 1) fostering functional competencies of EHS staffs and 2) effectively and proactively responding to rapidly changing EHS environment. For this research, EHS staffs from five large companies in Korea were surveyed. Most respondents indicated that one of key expertise required by EHS staffs is capabilities to effectively deal with changes to various domestic and international EHS-related laws and regulations. Furthermore, a predominant number of respondents commented that it is imperative for EHS staffs to have a broad knowledge of business management. As for internal issues that EHS staffs encounter within their organizations, many pointed out that their EHS vision is not sufficiently shared throughout the organization, and that the rules of leadership are critical in solving this issue. On the other hand, the survey respondents also raised an issue of limited EHS-related investments due to slow economy. As a solution, they proposed ways to align EHS organization's performance with the company's performance. Based on this survey, issues and solutions for EHS organizations were identified. Results of this research can benefit companies that plan to newly establish or further expand EHS organization.

• 대한안전경영과학회지
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• 제12권4호
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• pp.139-143
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• 2010

The small and medium construction companies are facing potential EHS(Environment, Health & Safety) of major accidents to cause casualties or a financial loss and increasing social responsibility. So, they have to voluntarily accomplish the EHS management system rather than passively with regard to EHS regulation. In this study, the framework of integrated EHS management system is developed based on cloud computing, and construction companies are to materialize self-regulation EHS process of construction workplace and to standardize the total EHS business process using the developed system. The proposed system also provides risk analysis, education/control and continuous improvement for EHS tasks and users can easily access the system on the web at a low price through cloud computing service. Eventually, the integrated system contributes to the managerial improvement by minimizing economic and physical loss caused by construction accidents.

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2010년도 추계학술발표논문집 2부
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• pp.859-861
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• 2010

The construction companies are facing potential EHS(Environment, Health & Safety) of major accidents to cause casualties or a financial loss and increasing social responsibility. So, they have to voluntarily accomplish the EHS management system rather than passively with regard to EHS regulation. In this study, the integrated EHS management system is developed based on cloud computing, and construction companies are to materialize self-regulation EHS process of construction workplace and to standardize the total EHS business process using the developed system. The proposed system also provides risk analysis, education/control and continuous improvement for EHS tasks and users can easily access the system on the web at a low price through cloud computing service. Eventually, the integrated system contributes to the managerial improvement by minimizing economic and physical loss caused by construction accidents.

• 한국산업보건학회지
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• 제17권3호
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• pp.192-202
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• 2007

Objectives: The objectives of this research are to examine the missions, organization, and programs of the environmental, health and safety(EHS) offices of the major research universities in the U.S.A., particularly the case of Massachusetts Institute of Technology(MIT) EHS Office, and to suggest ways to address the EHS issues of the universities and research institutes in South Korea. Methods: The top 30 research universities in the U.S.A. were selected by the total amounts of research funds they annually received. The web sites of the 30 universities were searched to identify the names of the departments that address environment, health, and/or safety related issues, the missions of those departments, the major programs of those departments, and the number of staff in those departments. Also, a case study was conducted for the Environment Health and Safety Management System and the Environment, Health and Safety Office of the MIT, using literature and web searches and a meeting with the Director of the MIT Environment, Health and Safety Office. Results: All the top 30 research universities in the U.S.A. had designated departments that dealt with EHS issues. Most of them were by the name of or similar to environmental, health and safety. The mission statements of those departments were mostly about improving the safety and health of their community members, improving the environment, and complying to EHS regulations. Most of those departments had an environmental management program, industrial hygiene program, radiation protection program, safety program, and biosafety program as their major programs. The components of the environment, health and safety management system(EHS-MS) of the MIT were examined in detail. In contrast, not many universities in South Korea had designated departments that dealt specifically with EHS issues. Also, the number of fulltime staff for EHS was only 1-2 in most of the Korean universities and their work duties included only general safety, while neglecting other health/environment related issues. Conclusions: Well organized and functioning environmental, health and safety offices were present in all of the top 30 research universities in the U.S.A., whereas similar organizations of the universities in South Korea were virtually non-existent and/or had very limited EHS activities. Therefore, in order to reduce potential risks of accidents and health problems in the Korean universities and research institutions, well established and functioning EHS-MSs and EHS offices are warranted. The case of the EHS-MS and EHS Office in the MIT demonstrate a successful case to follow.

• 한국환경보건학회지
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• 제31권5호
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• pp.365-371
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• 2005

This study was peformed to explore the current situation of university environmental health and safety (EHS) system and evaluate the effects of such system on university EHS practices. Essential elements for the university EHS system were identified based on the representative examples of foreign universities, and Hey were incorporated into a questionnaire, which was used in this study. Among the academic institutions we surveyed in this study, 89% of the universities employed health and safety manager, and 65% kept departments. However, less than 50% of universities maintained EHS policies, maintained health and established safety committees within the university headquarters, and held health and safety meetings on regular basis. Several basic requirements such as chemical hygiene program and laboratory safety training program lacked in many universities. Some basic surveillance was performed in many universities, however, only few universities carried out surveillance on biological safety, medical examination, and chemical exposure monitoring. EHS system had significant influence on university EHS program (p<0.05). Performances of EHS activities were influenced by presence of EHS policies, and university health and safety committees.

• 전자공학회논문지SC
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• 제45권3호
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• pp.59-67
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• 2008

최근 휴대폰 보급률이 증가하면서 휴대폰 전자파로 인해 두통, 불면증, 단기간의 기억력 소실 등의 정신 신경 생리학적 증상을 호소하는 휴대폰 전자파 과민증(EHS, Electromagnetic Hypersensitivity) 환자들이 나타나고 있다. 그러나 휴대폰 전자파 과민반응의 원인이 막연한 불안감 때문인지 혹은 전자파 노출로 인한 증상 인지에 대하여 확실한 원인규명이 되지 않고 있다. GSM 방식의 휴대폰의 경우 전자파 노출 시 EHS 군을 대상으로 혈압, 맥박수 변화 및 자각 증상 등의 과민 반응에 대한 연구들이 수행되었으나 일반인과 EHS 군의 실험-대조군 연구로 생체신호, 자각증상 및 전자파 인지 여부에 대한 복합적인 연구와 CDMA 휴대폰 EHS 연구는 거의 없는 실정이다. 본 연구에서는 일반인 19명과 EHS 17명을 대상으로 30분간 300 mW의 CDMA 휴대폰 전자파에 노출 시 교감신경의 흥분을 나타내는 맥박, 호흡수, HRV(heart rate variability)의 변화를 측정하고, 전자파 노출 시 전자파 인지여부와 두통, 피로 등의 자각증상을 조사하였다. 그 결과, 일반인과 EHS 군 모두 전자파 노출여부에 따라 맥박, 호흡수, HRV의 변화가 없었고, 자각증상의 차이도 없었다. 전자파 인지 조사 결과 EHS 군이 일반인 군에 비하여 전자파를 더 잘 인지한다고 볼 수 없었다.

• IEIE Transactions on Smart Processing and Computing
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• 제3권2호
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• pp.52-58
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• 2014

Exact histogram specification (EHS) transforms the histogram of an input image into the specified histogram. In the conventional EHS techniques, the pixels are first sorted according to their graylevels, and the pixels that have the same graylevel are further differentiated according to the local average of the pixel values and the edge strength. The strictly ordered pixels are then mapped to the desired histogram. However, since the conventional sorting method is inherently dependent on the initial graylevel-based sorting, the contrast enhancement capability of the conventional EHS algorithms is restricted. We propose a modified EHS algorithm considering the just noticeable difference. In the proposed algorithm, the edge pixels are pre-processed such that the output edge pixels obtained by the modified EHS can result in the local contrast enhancement. Moreover, we introduce a new sorting method for the pixels that have the same graylevel. Experimental results show that the proposed algorithm provides better image enhancement performance compared to the conventional EHS algorithms.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2008년도 심포지엄 논문집 정보 및 제어부문
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• pp.139-140
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• 2008

휴대폰 전자파로 인해 두통, 불면증, 단기간의 기억력 소실 등의 신경 생리학적 증상을 호소하는 휴대론 전자파 과민증 (EHS, Electromagnetic Hypersensitivity) 환자들이 늘어나고 있다. 그러나 휴대폰 전자파 과민반응의 원인이 막연한 불안감 때문인지 혹은 전자파 노출로 인한 증상 인지에 대하여 확실하게 규명이 되지 않고 있다. GSM 방식의 휴대폰의 경우 전자파 노출 시 EHS 군을 대상으로 혈압, 맥박수 변화 등의 과민 반응에 대한 연구들이 수행되었으나 일반인과 EHS 군의 실험-대조군 연구로 생체신호, 자각증상 및 전자파 인지 여부에 대한 복합석인 연구와 CDMA 휴대폰 EHS 연구는 거의 없는 실정이다. 본 연구예서는 일반인 6명과 EHS 6명을 대상으로 30분간 300mW의 CDMA 휴대폰 전자파에 노출시 교감신경의 흥분을 나타내는 맥박, 호흡수, HRV(heart rate variability의 변화를 측정하였다. 그 결과, 일반인과 EHS 군 모두 전자파 노출여부에 따라 맥박, 호흡수, HRV의 변화가 없었다.

• 한국식품영양과학회지
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• 제38권2호
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• pp.136-141
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• 2009

스피루리나를 세포벽 가수분해효소와 단백질 가수분해효소로 처리하여 조제한 스피루리나 가수분해물(enzymatic hydrolysate of spirulina, EHS)의 생리활성을 조사하였다. 효소처리 가수분해물의 유산균 증식효과, 항산화능, 암세포 증식저해 활성, 항혈전 활성을 분석한 결과 EHS는 유산균 증식활성과 항산화능에 큰 영향을 미치지 않았으며, 자궁경부암세포(HeLa)에 대해 1.42 mg/L의 농도에서 15% 미만의 증식저해효과를 나타내었다. 반면 항혈전 활성을 공통 경로(common pathway), 내인성 경로(intrinsic pathway), 외인성 경로(extrinsic pathway)로 구분하여 측정한 결과, 공통경로, 내인성 경로와 유사한 항혈전 활성이 있음을 확인하였다. 공통 경로를 thrombin time assay로 측정한 결과 EHS의 농도가 100 mg/L일 때 155.6초를 나타내었다. 내인성 경로는 activated partial thromboplastin time assay로 측정하였고, EHS의 농도가 1000 mg/L일 때 95.8초를 나타내었다. 외인성 경로를 prothrombin time assay로 측정한 결과 EHS의 농도가 1000 mg/L일 때 10.6초를 나타내었다. 결과적으로 스피루리나 효소가수분해물(EHS)이 항혈전경로 중 공통경로와 내인성 경로에 활성이 있음을 알 수 있었으며, 이를 토대로 신규의 항혈전 기능성 원료로 개발될 수 있을 것으로기대된다.

• 사회복지연구
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• 제48권2호
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• pp.97-119
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• 2017

본 연구는 미국 자활 영역에서 아래로부터 위로의 '이용자중심(client-centered)' 접근을 통해 개발되어 사용 중인 '정서적 자활 성과 지표(Psychological Self-Sufficiency: PSS)'의 한국에의 적용 가능성을 탐색하기 위해, 한국 자활 프로그램 참여자를 대상으로 척도 타당성 검증을 실시한다. 자활사업은 전통적으로 '경제적 자활'에 초점을 두고 자활사업의 궁극적 목표인 경제적 성과에\만 집중함으로써, 자활사업 참여자의 정서적, 사회적 변화를 간과해왔다. 본 연구는 자활사업의 성과를 제고하기 위해서는 기존의 경제적 측면에서의 접근 뿐 아니라 정서적 측면에서의 접근 또한 필요함을 제안하며, 자활사업 참여자들의 정서적 변화에 초점을 둔 고용희망 척도(employment hope scale: EHS)의 타당도를 검증한다. 그 결과, 4차원 17문항으로 구성된 한국형 고용희망 척도의 타당성이 검증되었다. 본 연구는 정서적 자활 정도를 측정할 수 있는 성과지표로서 한국형 고용희망 척도의 활용가능성을 검증함으로써, 경제적 자활 성과 지표를 보완할 수 있는 보완적 과정 평가 도구로서의 적용 가능성을 제안한다.