• 대한인간공학회지
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• 제31권3호
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• pp.445-453
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• 2012

The aim of this paper was to prove that if the risk level in combined tasks was improved through evaluation of postural load of liquid weight measurement process, the workload level and ratio of exposure time would be changed, and the time of process would be seen concurrently. Background: According to results of epidemiological studies conducted by Korea Occupational Safety & Health Agency, 122 musculoskeletal disorders occurred during 1992 to 2008, in which manufacturing industry covers 96(78.7%) of total. However, this is an insufficient level and only occupies 39% based on the South Korea's manufacturing standard industrial classification(246 industries). Method: Firstly, the number of batches weighed on one day(460min) was investigated based on the work performed and Weight measured weekly. VCR recording was taken based on the level of liquid ingredients prescribed for 1batch using the Camcorder. After dividing a 356 sec video into 1 sec using the screen capture function in Gom player, the job classification was performed by analyzing the change of working postures, which revealed 148 working postures. Time measurement was decided by time of the postures was being maintained. Then, the REBA analysis was performed for the working postures. The ratio of Exposure time was calculated based on the measurement time and REBA Score. In addition, the recommendations were designed and implementation was carried out for the working postures with REBA Score higher than 3. Finally, after the intervention, REBA measurement, time measurement, and ratio of exposure time were calculated for the comparison of works before and after improvement. Results: The number of work elements was decreased by 30.4% from 148 to 103 after improvement. The results of time measurement showed that the time was reduced by 46.3% from 356 sec to 191 sec. And the ratio of exposure time was also improved by 52.1% from 0% to 52.1% after improvement. Conclusion: The reduction of time was found to improve the productivity of management. Furthermore, because the reduction of ratio of exposure time and the improvement of workload level are the improvement of discomfort, it would contribute to the improvement of the worker's psychological working posture. Application: These results would contribute to musculoskeletal disease prevention and management performance. Further studies for other industries would be needed based on this case study.

• 대한감각통합치료학회지
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• 제18권2호
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• pp.55-68
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• 2020

목적 : 본 연구에서는 최근 10년간 국내에서 발표된 아동 감각통합치료에 대한 중재효과를 체계적으로 분석하여 이해하기 쉽도록 제시하고자 한다. 연구방법 : 학술연구정보서비스(RISS)와 디비피아(DBpia)의 검색엔진을 사용하여 2011년에서 2020년 6월까지 출판된 국내 논문을 대상으로 하였다. 검색어는 "감각통합", "감각처리", "ASI(Ayres Sensory Integration)"이었다. 총 19개의 논문을 분석하였다. 연구결과는 PICO(Population, Interventions, Outcomes, Comparisons), 국제기능장애 건강분류(International Classification of Function, Disability and Health; ICF)방법과 수정한 The Evidence Alert Traffic Light Grading System을 사용하여 그림으로 제시하였다. 결과 : 아동 감각통합치료를 가장 많이 적용한 진단은 발달지연이었고, 중재법은 개별 감각통합치료가 가장 많았다. ICF의 신체구조 및 기능에 해당하는 중재는 91%에서 긍정적인 효과를 보였다, 세부 영역은 감각조절 및 감각처리, 소운동과 대운동, 신체도식, 신체-자기개념, 균형, 기본 움직임, 자세조절 및 손기능, 집중, 자존감이었다. 결론 : 아동 감각통합치료의 중재효과를 ICF의 분류와 그림으로 간단히 제시하여 치료사, 연구자, 아동의 가족들이 쉽게 이해하고 이용할 수 있는 근거를 마련하고자 하였다.

• Toxicological Research
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• 제25권3호
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• pp.132-139
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• 2009

The toxicity test of ammonium persulfate was conducted to ensure of its potential toxic effects according to the single-dose acute oral toxicity study (OECD Guideline 423) and 90-day repeated dose sub-chronic oral toxicity study guideline (OECD Guideline 408) for establishing national chemical management system, and matching in the Globally Harmonized Classification System (GHS) category. In acute oral toxicity study, pasty stool, perineal contamination and temporary body weight decrease were observed after dosing 1st and 2nd challenge (300 mg/kg body weight). All test animals were dead within 6 hours after dosing at 3rd challenge (2000 mg/kg body weight). Therefore, the GHS class of test substance is considered class 4. In sub-chronic toxicity study, body weight changes, food consumptions, hematological, biochemical and pathological examination did not show any noticeable and significant differences between the administered (5, 20, 80 mg/kg body weight) and control (vehicle only) group animals. Based on these results, the no observed adverse effect level (NOAEL) is considered above 80 mg/kg body weight.

• Journal of Preventive Medicine and Public Health
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• 제28권2호
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• pp.497-510
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• 1995

This study was carried out to assess work ability of manufacturing workers and managerial workers. Subjects were 446 manufacturing workers and 278 managerial workers employed in Gumi industrial complex and the observation period was for 1 month(February to March), 1995. In this study, as a questionnaire for the assessment of work ability, we used the Work Ability Index(WAI) which was developed by Institute of Occupational Health in Finland. Major findings obtained from this study were as follows ; WAI was poor in lower economic condition, shift work, irregular diet group(p<0.05). There were no evident trends of WAS in sex, educational level, obesity index, exercise, smoking, and alcohol drinking. In the groups of sensitive to perception of stress, other industrial classification except textile and electronics, the more than 9 hours work, the evident trends of poor WAS were observed(p<0.01). In the groups of $30\sim39$ years old, $40\sim49$ years old, unmarried, high school, shift work, standard body weight, and regular .diet, WAI between manufacturing workers and managerial workers was significantly different(p<0.01) and WAI of managerial worker was worse than that of manufacturing worker.

• 실천공학교육논문지
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• 제11권2호
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• pp.239-249
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• 2019

현재 직업능력개발훈련에 대한 재정 지원은 NCS 직종 분류에 따라 설정된 NCS 기준 단가에 따라 집행되고 있다. 이러한 기준단가 제도는 훈련분담금-지원금 제도가 운영되는 경우 그에 필요한 행정 부담을 경감시켜주는 장점을 갖고 있다. 본 논문에서는 현재 NCS 기준단가가 훈련과정별 수강료를 기준으로 함에 따라 직업훈련 정책의 사회통합적 기능을 왜곡시킬 수 있음을 지적하였다. 앞으로 합리적 개선 방안 모색을 위한 기초로서, 훈련기관에서 책정하는 훈련과정별 수강료에 어떤 요인들이 영향을 미치는지 분석하였다. 그 결과 실제로 훈련기관의 독점적 성격이나 훈련참여자의 높은 지불의사가 수강료에 영향을 미침을 확인할 수 있었다. 따라서 향후 정부의 직업능력개발훈련에 대한 재정지원에서 이러한 영향을 제거하고 실제 훈련공급비용에 가까운 지원이 이뤄지도록 함으로써 훈련정책이 사회적 통합성 제고에 기여하도록 해야 할 것이다. 더 나아가 근본적으로 모든 훈련과정의 정확한 훈련공급비용을 보전해 줄 수 없다면 정부의 정책적 판단을 중심으로 하는 지원 기준 마련이 필요하다.

• 사상체질의학회지
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• 제24권2호
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• pp.39-46
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• 2012

1. Objectives : The purpose of this study was to validate the Sasang Personality Questionnaire (SPQ) with Positive And Negative Affection Schedule(PANAS) for emotionality and Body Mass Index (BMI) for body constituents. 2. Methods : The SPQ along with Questionnaire for Sasang Constitution Classification (QSCC) II, PANAS, BMI was measured with 232 College students. The correlation coefficient was measured with Pearson correlation between SPQ and PANAS, BMI. The SPQ, PANAS, and BMI score of each Sasang constitution groups based on QSCCII were compared using analysis of variance and profile analysis. 3. Results : The SPQ score of each Sasang constitution groups was significantly (p<0.01) different. The SPQ showed significant correlation with PANAS Positive Affect (r=0.201, p=0.002), but not with the BMI (r=0.097, p=0.146). The SPQ-Emotionality scale, unlike other SPQ subscales, showed positive correlation with PANAS Negative Affection. 4. Conclusions : We performed the constructive validity of SPQ using PANAS and BMI. The SPQ would be useful for the study on psychophysiological mechanism of the Sasang constitutions.

• 한국안전학회지
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• 제29권2호
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• pp.24-30
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• 2014

There have been controversies over whether explosion hazardous area(EHA) should be classified for facilities which use lighter-than-air gases such as city gas, hydrogen and ammonia. Two view points are confronting each other: an economic piont of view that these gases are lighter than air and disperse rapidly, hence do not form EHA upon release into the atmosphere, and a safety point of view that they are also inflammable gases, hence can form EHA although the extent is limited compared to heavy gases. But various standards such as KS, IEC, API, NFPA do not exclude light gases when classifying EHA and present examples of EHA for light gas facilities. This study calculates EHA using the hypothetical volume in the IEC code where the hole sizes required for the calculation were selected according to various nominal pipe sizes in such a way to conform to the EHA data in the API code and HSL. Then, 25 leakage scenarios were suggested for 5 different pipe sizes and 5 operating pressures that cover typical operating conditions of light gas facilities. The EHA for the minimum leakage scenario(25 mm pipe, 0.01MPa pressure) was found to correspond to a hypothetical volume larger than 0.1 $m^3$(medium-level ventilation). This confirms the validity of classifying EHA for facilities using lighter-than-air gases. Finally, a computer program called HACPL was developed for easy use by light gas facilities that classifies EHA according to operating pressures and pipe sizes.

• 한국산업보건학회지
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• 제26권3호
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• pp.317-323
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• 2016

Objectives: This study was performed to estimate domestic usage amount of insecticide for fruit cultivation to suggest job-exposure matrix(JEM) regarding farmers treating agricultural insecticide. Materials and Methods: The domestic usage amount of insecticide for fruit cultivation was investigated according to two research methods. The former method is to use agricultural pesticides published annually from Korea Crop Protection Association(KCPA) and the latter method is to apply cultivation area of fruit provided officially from Statistics Korea(SK). Results: It was found that its domestic usage amount has decreased gradually from the first sale to presence(2012). However, there is a significant difference of annual usage trend of insecticide for fruit cultivation between shipments and estimation. The annual usage trends of insecticide for fruit cultivation based on regional classification were different from those based on total aspect. Conclusions: The region which used insecticide for fruit cultivation the most in Korea was as follows: Gyeonsang-do, followed by Jeolla-do, Chungcheong-do, Jeju-do, Seoul/Gyeonggi-do and Gangwon-do. An averaged ratio of usage amounts of insecticide based on shipments and those based on estimation by cultivation area was $980{\pm}186%$, which means that usage amounts of insecticide estimated by shipments are ten times higher than those based on cultivation area.

• 공학교육연구
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• 제9권1호
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• pp.5-19
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• 2006

이 연구는 그 동안 시행되어왔던 국가자격 학점인정 기준과 더불어 국가공인 민간자격 학점인정 방안에 대한 종합적인 검토를 통해 합리적이고 타당한 학점인정 기준을 수립하고자 하며, 자격을 통해 인정받을 수 있는 학점인정 상한선 제도 도입과 학점 은행제의 직무체계를 개선하는데 목적이 있다. 첫째, 자격의 과다 학점인정 문제를 해결하기 위한 학점인정 개선 기준은 전문가를 활용한 델파이 조사를 통하여 실시하였다. 학위수준별 최대 인정 가능 자격의 수를 제한, 동일 직무분야의 능력에 대해서는 최상위 자격만 인정, 자격별 동일 시험과목이 있을 경우 중복 시험과목당 학점 감산제를 통해 두개 이상 자격 취득시 동일 시험과목을 중복하여 학점을 인정받지 못하도록 하였다. 둘째, 기존 자격분류체제로는 늘어나는 자격의 적절한 분류가 어려워 한국직업능력개발원이 연구한 결과를 바탕으로 제시한 KRIVET 자격분류표를 기준으로 한국교육개발원에서 활용할 수 있도록 수정 보완한 신규 자격분류체제를 제시하였다.

• 복식
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• 제64권8호
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• pp.67-82
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• 2014

This research aims to explicate how we reveal our identity and emphasize beauty in our passion for beauty. It also attempts to find out our sense of beauty in exaggeration of visual expressions. The purpose is to represent how the contemporary knit fashion is various and exaggerated in our modern fashion world, and also to give the direction of new knitwear designs through the visual analysis of exaggerated knit fashion. Literature research was done by studying reference books and magazines, leading papers and based on a dissertation thesis. This study collected 787 designer's works published in the world's big Four collections from the 2000 S/S to 2011 S/S, in 23 seasons during 12 years. In answer to 9 experts about the criteria of classification, 520 works were chosen and analyzed according to the standard of exaggerated knitwear. The result of the study is the followings: The type of exaggeration shown in contemporary knit fashion was classified in three categories; Enlarge exaggeration, reduce exaggeration and transform exaggeration. As a sub-category, enlarge exaggeration was classified into three categories; Volume expansion and the expansion by the material, gauge and larger composition application expansion. Reduce exaggeration appeared as mini-reduction, skinny-reduction and transform exaggeration was respectively classified into deformation of the shape and patterns. The characteristics of exaggeration shown in contemporary knit fashion appeared as the new formative sense. In terms of fuller sense and surface, using various materials, gauge, changes in the composition represented challenges for textiles. The exaggerated contemporary knitwear expressed sex appeal using tight-fitting effect. Contemporary knit fashion simplified the design by taking advantage of the strong elastic attributes. It showed the beauty of women, expressed variability and limitless knit characteristics beyond the conventional thinking. In addition, it has been well represented as a form of freedom, amusement and diversity.