• 대한환경공학회지
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• 제33권10호
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• pp.748-755
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• 2011

1960년대 산업화 이후 기계화가 가속되어 산업발달에 많은 기여를 하였으나 고소음 작업장에서 발생하는 소음피해에 대한 대책은 거의 없는 실정이다. 특히 공장 및 작업장에서 발생하는 기계소음은 반복적으로 되풀이되어 충격적이며, 강한 소음으로 대부분의 현장 작업자들은 높은 불쾌감과 청력장애의 위험을 부담하고 있다. 이러한 관점에서 이 연구는 고소음 작업장에서 발생하는 작업기계 소음을 평가하기 위한 적정 평가어휘를 추출하고자 했으며, 이렇게 추출된 어휘는 작업 기계소음을 평가하기 위한 음향심리 실험 및 기계소음 규제기준 설정을 위한 유용한 자료로 활용될 수 있을 것으로 사료된다.

• Journal of Nutrition and Health
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• 제27권3호
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• pp.253-262
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• 1994

This study was intended to investigate the anticarcinogenic effect of ginseng previously elucidated by other researches in animal studies. The sister chromatid exchange(SCE) method of human lymphocytes was used as a biomarker. Based on the literature search and the results of our laboratory, smoking was used as a parameter elevating the SCE frequency of general human population. To evaluate the smoking and ginseng effect on SCE frequency, 98 male healthy factory workers aged 23 to 58 years were divided into 4 groups : smoker with ginseng (SG), smoker control(SC), non-smoker with ginseng(NSG), and non-smoker control(NSC) groups, according to their smoking habits and ginseng intake. The mean sponteneous SCE per cell for the SG(10.8$\pm$0.3) and SC(10.4$\pm$0.3) groups were significantly higher than the NSG(9.1$\pm$0.2) and NSC(9.3$\pm$0.3) groups(p<0.05). High frequency cells (HFCs, cells with 15 SCEs) in SG and SC groups were also greater than those in NSG and NSC groups. However, the SCE levels of the SG and SC groups were not associated with the personal smoking history and the number of cigaretts smoked per day. Ginseng intake did not show any effect on the increased SCE caused by smoking. There were no correlations of the elevated SCE among smoking and ginseng types, history of ginseng intake, and consumption frequencies of ginseng intake. These results does not support the findings of other researchers that ginseng could be a protective agent to DNA damage.

• 대한인간공학회지
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• 제15권2호
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• pp.25-36
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• 1996

The purposes of the present study were: (1) to investigate aeromedical dissorders prevalent among ROK air force pilots and (2) to evaluate their detrimental effects on flight performance. The study examined the eight flight-induced disorders primarily responsible for permanent grounding and flying restrictions. According to the survey of 600 randomly selected pilots, 80.2% of the respondents have experienced low back pain, which was 20% higher than the lifetime prevalence in Swedish male workers. Bradyacusia ranked second (56.0%) resulting from continuous exposure to high aircraft noise. The cardiovascular disorders, the most common cause for permanent grounding of Canadian forces pilots, were found in 16.0% of the Korean pilots. Due to the high prevalence of the disorders, in 1993 the Korean pilots received medical treatments 10 times as many as factory workdes. Compared to the flight performance of Israeli and British pilots in wars, the flight performance of the Korean pilots was found to be inferior. Such poor performance can be attributable to the high incidence rates of disorders. Statistical analyses revealed that the aeromedical disorders were related to personal variables such as age, flight career- related factors, and fatigue. Cigarette smoking and drinking habit contributed to worsening back pain, barotitis media, and pulmonary disorders. More comprehensive research was recommended to identify health hazards, combined with intervention to minimize disorders that could lead to early termination of flight careers or excessive loss of flight time. This study further suggests that aeromedical institutions in Korean air force should be fostered more professionally and financially.

• 한국공작기계학회논문집
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• 제17권1호
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• pp.1-6
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• 2008

There are some methods that have been used to manage a degasing process in recent years, such as an injection method that uses aluminum molten metal powder and chemicals supplier and input method that supplies argon and nitrogen, or chlorine gas by using a gas blow-tube. However, these methods show some problems, and it shows that it is a difficult process to handle, pollution due to producing a lot of toxic gases like chlorine and fluoride gas, irregular effects, and lowering work efficiency due to the excessive processing time. The problems that are the most fatal are the producing a lot of sludge due to the reaction of aluminum molten metal with chemicals, loss of metals, and decreasing the life of refractory materials. In order to solve these problems, this paper develops a technology that is related to aluminum continuous casting molten metal and monolithic degasing apparatus. A degasing apparatus developed in this study improved the existing methods and prevented environmental pollution with smokeless, odorless, and harmlessness by using a new method that applies argon and nitrogen gas in which the methods used in the West and Japan are eliminated. The method developed in this study decreases the molten metal processing and settling time compared to the existing methods and improves the workers' health, safety, and environment because there is no pollution in processes.

• 한국전문물리치료학회지
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• 제14권2호
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• pp.85-90
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• 2007

In many manufacturing occupations, industrial workers reported foot or lower leg problems such as discomfort, pain or orthopedic deformities. This study investigated the effects of two different working conditions upon assembly worker's perception of discomfort and foot pain associated with various body parts. Twenty-three male volunteers performed work in the factory. Ergonomic intervention has been to modify the flooring in an attempt to alleviate the problems associated with constrained standing and walking work. The worker's standing conditions consisted of standing on a hard floor while wearing shoe insoles. Questions were asked regarding body discomfort and foot pain. Significant differences in body discomfort and foot pain were found when comparing the overall effects of wearing shoe insoles on a hard floor (p<.05). This investigation indicated that shoe insoles reduced body discomfort and foot pain (p<.05).

• International Journal of Naval Architecture and Ocean Engineering
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• 제6권1호
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• pp.162-174
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• 2014

Most shipbuilding scheduling research so far has focused on the load level on the dock plan. This is because the dock is the least extendable resource in shipyards, and its overloading is difficult to resolve. However, once dock scheduling is completed, making a plan that makes the best use of the rest of the resources in the shipyard to minimize any additional cost is also important. Block assignment planning is one of the midterm planning tasks; it assigns a block to the facility (factory/shop or surface plate) that will actually manufacture the block according to the block characteristics and current situation of the facility. It is one of the most heavily loaded midterm planning tasks and is carried out manually by experienced workers. In this study, a method of representing the block assignment rules using a diagram was suggested through analysis of the existing manual process. A block allocation program was developed which automated the block assignment process according to the rules represented by the diagram. The planning scenario was validated through a case study that compared the manual assignment and two automated block assignment results.

• Journal of Preventive Medicine and Public Health
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• 제24권1호
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• pp.37-44
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• 1991

Formaldehyde가 주성분인 접착제를 사용하는 목재 가공업소에서 특히 접착부서에 48개월 이상 근무했던 3명의 여자근로자들이 눈, 비강, 구강, 인후 및 피부의 자극증상과 호흡곤란등의 증상을 호소하였다. 이에 목재 가공업소 전 근로자 26명을 대상으로 설문지를 통하여 자각증상 여부를 확인하고 흉부 X-선 촬영, 폐기능 검사, 심전도, 동맥혈 포화도 검사 및 혈색소 검사등을 실시한 결과는 다음과 같다. 1. 접착부서 근무자중 장기 노출자인 환자군과 단기 노출자인 비환자군과 비교시에 냄새를 잘 못 맡으며 입안에 물집이 생기고 혀가 갈라지고 맛을 잘 모르며 목이 쉬는 증상에서 통계적으로 유의한 차이를 보였다 (p<0.05). 2. 접착부서 근무자중 환자군과 전체 비폭로군과 비교시에는 냄새를 잘 못 맡고 입안에 물집이 생기며 혀가 갈라지고 맛을 잘 모르며 목이 잘 쉬고 인후통이 오며 가슴이 답답하고, 피부 자극증상과 정신이 멍해진다는 증상에서 통계적으로 유의하게 나타났다 (p<0.05). 3. 환자군과 비폭로군의 여자군과만 비교한 경우에는 냄새를 잘 못 맡고, 혀가 갈라지며, 맛을 잘 모르고 목이 쉬며 인후통이 있고 피부자극 증상과 정신이 멍해진다는 증상에서 유의하게 나타났다(p<0.05). 4. 폐기능 검사의 결과는 환자군에서 노력성 폐활량(FVC)과 일초량 ($FEV_1$)의 감소를 보였다(P>0.05). 5. 전 근로자들에게서 흉부X-선 촬영, 심전도, 동맥혈 포화도 검사등에 큰 변화를 보이지 않았으며, 전체적으로 빈혈 양상을 보였으나 폭로 여부에 따른 차이는 없었다. 접착 부서 근로자들이 증상을 호소해서부터 임시검진과 작업장 환경 측정을 실시하고 정밀검사를 완료하기까지의 과정이 신속히 이루어지지 못했던 것은 폭로 작업장 근로자들의 문제점을 더욱 정확히 파악하고 건강을 보호 관리한다는 측면에서 개선되어야 할 것이다. 이와 같이 연구 수행에 많은 제한점이 있었으나 접착제를 사용하는 목재 가공업소에서는 복합적인 유해물질에 영향을 받을 수 있는데, 특히 formaldehyde 폭로에 인한 눈, 비강, 구강, 인후와 피부의 자극증상과 호흡곤란 및 폐기능의 저하가 문제시 되므로 폭로 여부를 결정할 수 있는 특별한 생물학적 감시 방법이 없어 증상에 의존하여 중독 여부를 파악하는데에는 어려움이 있으나 폭로 근로자들의 건강을 지키기 위해서는 작업장 환경측정등을 통한 폭로 감시를 더욱 철저히 하여야겠다. 또한 최근에 들어와서는 formaldehyde가 발암물질이라는 논쟁이 끊임없이 되고있으므로 폭로 근로자들에 대한 예방대책과 이에 따른 폭넓은 연구가 이루어져야 할 것이다.

• 한국경제지리학회지
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• 제13권2호
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• pp.253-269
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• 2010

본 연구는 국내 10대 온천관광지(덕산, 부곡, 온양, 유성, 수안보, 보문, 동래, 아산, 도고, 해운대)를 대상으로 다차원 척도법에 의해 이미지 유사성, 속성 인식도 및 선호도를 분석하였으며, 결과는 다음과 같다. 첫째, 온천관광지의 이미지 유사성 분석결과, '해운대, 동래 및 보문', '도고, 온양 및 아산', '덕산, 수안보 및 부곡'은 각각 유사한 이미지 그룹을 형성하고 있으며, 유성은 이들 온천들과 다른 이미지를 갖고 있는 것으로 나타났다. 둘째, 온천관광지 속성인식도 분석결과, 덕산과 부곡은 '온천 부대시설' 속성이, 유성, 온양, 아산 및 도고는'온천접근성' 및 '관광여건' 속성이 그리고 보문은 '관광여건' 속성에서 경쟁력이 우수한 것으로 나타났다. 해운대, 동래 및 수안보는 '온천접근성' 속성에서 경쟁력이 가장 취약한 것으로 나타났다. 셋째, 직업별 온천관광지 선호도 분석결과, 사무직은 유성과 부곡, 전문직은 보문, 농 수 축산업과주부는 해운대 및 동래, 공무원, 연금생활자, 학생 및 생산직은 온양, 덕산, 아산 및 도고를 그리고 자영업은 수안보를 선호하는 것으로 나타났다. 넷째, 거주지별 온천관광지 선호도 분석결과, 서울, 인천 경기, 강원, 대전 충남 충북 및 전남 전북 거주자는 유성, 수안보, 온양, 덕산, 도고 및 아산 온천을 그리고 대구 경북 및 부산 울산 경남 거주자는 부곡, 보문, 동래 및 해운대 온천을 가장 선호하는 것으로 나타났다.

• 지역사회간호학회지
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• 제11권1호
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• pp.90-104
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• 2000

This study was carried out to investigate the current state of occupational health management and characteristics of employees working in small-scale-enterprises (SSE) employing less than 50 workers. Samples were chosen among the two thousands employees working in 838 factories where located in Youngdungpo-Ku, Seoul, Korea. The study results were as followed: 1. Most factories investigated in the study were manufactures (68.6%) which were established in 5 to 10 years ago (29.2%), employing less than 5 workers (72.9%) and registered in accident compensation insurance (23.0%). 2. Health screening was undertaken in 24.9% workplaces for periodic health examination and in 1.5% for special health examination. Environmental monitoring was done in 3.3% factories. Very few factories displayed Material Substance Data Sheet (MSDS) in 3.1% among the total factories. 3. Workplaces usually had their own toilets in 75.9% and washing basin in 58.6% as types of sociowelfare facilities. 4. Employees responded in the study were mostly in the range of age from 30 to 39 in 34.7%. male in 84.8%. the married in 70.3%. manual workers in 42.0%. mostly working regularly 51 hours per a week in 48.2% and earned 710.000 Won to 1.000.000 Won per month in 35.0%. Medical utilization for employees were covered by factories sponsored medical insurance in 12.7% and by provincial sponsored medical insurance in 83.4%. 5. Two point six percents of employees were suffered by diseases. The health complaints indicated were mainly digestive problems in 46.7% and hypertension in 24.4%. 6. Employees wore personal protective equipments for work such as gloves in 48.1%. safety shoes in 30.5%. ear plug in 5.5% and mask in 6.9%. Based on the results of study, we recommend that various types of occupational health management should be developed according to workplace working condition of each factory. In addition to the development of occupational health strategies. we think that it is more important to monitor and to allocate how effectively they operate each other on the basis of longitudinal continuity. Besides, we would like to insist that these all management effort should be focused on prevention of disease and occupational health education of employees.

• 한국지역사회생활과학회지
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• 제18권2호
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• pp.323-334
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• 2007

This study was made to analyze the condition and the needs of nutrition education considering the different stage of nutrition education recognized by the dietitian in industrial area. 165 female dietitian were surveyed by questionnaire and they were divided into 4 groups according to the different recognition stages of nutrition education: Pre-contemplation(PC) 4.8%, Contemplation(CO) 46.7%, Preparation(PR) 22.4%, Action & Maintenance phase(AM) 26.1%. For statistical analysis, SAS(Ver.8.1. for Window) was used to find out the distribution related with nutrition education and to calculate the scores of mean and standard deviation. General characteristics of the subjects are about 20 years old(71.5%), single(69.7%), careers over 5 years(40%) and university graduates(73.9%). The number of meals(p<0.05) and the employment status(p<0.05) were significantly different according to the recognized stage of nutrition education. The practice of nutrition education was different depending on the dietitian in the industry. Many of the factory dietitian were in pre-contemplation stage(87.5%), however, those in the office and service area were more in Action & Maintenance stage(27.9%). In the industrial area, just 26.1% of dietitian operated the nutrition education and most did not due to the work overload and insufficient support of staff(73.3%). The frequency for the most effective nutrition education was once a month(61.2%). The contents for desirable nutrition education were in the order of 'eating habits'(36.1%), 'relation with the daily life'(23.5%), 'food hygiene' (21.7%), 'nutrition knowledge'(9.7%), and 'disease prevention'(9%). In operating nutrition education, dietitian had concerns about 'insufficient support of staff', 'shortage of teaching materials' and 'lack of time'. And, the dietitian who were with lower recognition stage of nutrition education(P<0.05) concerned more about the insufficient educational contents. In conclusion, dietitian in the industry highly recognized the need of nutrition education, but it was so difficult to practice. For more programs and various materials should be developed, and the staff's perception, the view of dietitian and the meal service should be changed, too. For the health improvement of industrial workers, it would be necessary to proclaim the importance of nutrition education nationwide.