• 대한인간공학회지
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• 제24권2호
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• pp.57-63
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• 2005

Ergonomic intervention techniques were adopted to assess and control potential risk factors of work-related musculoskeletal disorders(WMSDs) in the automated light assembly manufacturing system. Ten different kinds of assembly workstations implemented with a conveyor system and twelve female workers were observed and evaluated with careful video film analysis. Several close examinations using sets of checklists established by qualified safety and health organizations, such as NIOSH, OSHA, and ANSI, were conducted and every workers and staffs in the site participated in the self-report questionnaires and off-line interviews. Typical risk factors and symptoms of the upper extremity musculoskeletal disorders were found and categorized into specific parts of body. To reduce risk factors of WMSDs and improve system productivity new revised workstation standards, physical dimensions, were suggested accordant with anthropometric characteristics of workers and a heuristic decision strategy of rotating shift work schedules according to work contents has proposed to mitigate cumulative physical stress. Finally, ergonomic programs of entire company to prevent WMSDs were structured.

• 대한인간공학회지
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• 제35권5호
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• pp.307-317
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• 2016

Objective: This study looks into biomechanical variables occurring when one moves in a sitting posture, and presents objective references to make improvements in work environments of farm workers. Background: The farmers have more common musculoskeletal disorders compared to other professions, because they are much more exposed to biomechanical risk factors. The sitting posture that is the representative form of the squatted, can cause typical knee joint diseases, such as osteoarthritis or patellofemoral pain syndrome of the knee joint. Therefore, a quantitative study of knee load upon the movement in a squatting posture is required. Method: In order to proceed with its investigation, the study examined movements in a sitting posture with and without a lower body supporter through a threedimensional image analysis and by using Surface EMG. The study compared and analyzed the average muscle activity and the maximum muscle activity as well. Results: Every movement in a sitting posture is related to loads onto the knee joints and, when the farm workers move to sides, the study observed a high level of bowlegged moment. The study also noticed differences in muscle activity of medial gastrocnemius with and without the lower body supporter. Conclusion and Application: The study argues that what has been discussed so far is evidence to prove how the farm working environments should be improved in consideration of these movements observed when the farm workers move in a sitting posture.

• 대한조선학회논문집
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• 제43권3호
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• pp.392-398
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• 2006

A prototype of MES(Manufacturing Execution System) applied to panel assembly shop is implemented by using PDA(Personal Digital Assistant) and wireless database web server. The system is developed based on the Dot Net framework. The prototype can exchange the manufacturing execution data between production managers in the control room and workers in the factory through wireless internet communication. Manufacturing model of the panel shop is designed by using IDEF0 and UML method to understand the characteristics of the information and the data entities from the PPR-S view. Several issues in the shop were revealed from the manufacturing model analysis. The most typical problem was the lack of information sharing between the managing workers and the assembly workers. The problem prevents the workers and labors from sharing the process information and continuous workpiece flow In interactive way. To increase the information and data flow, a wireless internet based system is implemented and PDAs are linked together to exchange the process planning data and in-process data between the workers. It is anticipated that PDA and the implemented system can enable the process control at each process stages to obtain the well-organized operation.

• 한국의류학회지
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• 제34권4호
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• pp.553-562
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• 2010

This survey investigates the conditions of summer working uniforms for contracted foodservice workers. The data were obtained from 67 workers through in-depth interviews (July 2005~October 2005). The results of study are as follows: The working environment changed to menu and cooking method (air temperature $28\sim37^{\circ}C$, humidity 72~86 %RH, radiant temperature $27\sim37^{\circ}C$, air velocity 0.14~0.37m/sec). They answered that the working environment has high temperatures, humidity, excessive noise, and liability to slide. The typical accidents were burns, cuts, slide, and ligament injuries in the workplace. Work duties consisted of cooking, serving food, washing, and cleaning up leftover food. All the employees carried out multi tasks. The primary working postures and motions were standing, crouching, and lifting. The female workers usually wore underwear (panty and brassiere), upper and lower work wear, aprons, waterproof-aprons, cotton-gloves, rubber-gloves, socks, and rubber-boots. The satisfaction of the uniform was relatively low for trousers and waterproof-aprons. The answer about the fit was generally "comfortable." They answered "back," "chest," and "head" were wet with perspiration during work. The uncomfortable parts were the crotch and neck. Questions concerning their satisfaction with the material of uniforms indicated a high rate of dissatisfaction, particularly for ventilation and absorbency. In case of the colors of the working uniform, workers preferred white color for the upper part, and black color for the lower part.

• 노동경제논집
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• 제28권1호
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• pp.135-156
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• 2005

본 연구에서는 자영업 부문의 소득분포 및 소득결정요인을 임금근로와 비교 분석하였다. 자영업 부문은 임금근로보다 소득편차가 크고, 부문내 이질성이 큰 집단이라는 점에서, OLS 추정과 더불어 분위회귀분석(quantile regression analysis)을 실시하였다. 주요 분석 결과를 보면, 첫째, 자영업주의 소득이 임금근로자보다 높으며, 소득분위가 높아질수록 자영업주와 임금근로자간의 소득격차가 확대된다. 둘째, 교육의 한계효과는 자영업주와 임금근로자 공히 소득분위가 높아질수록 증가하고 있어, 소득분위가 높은 집단일수록 교육에 대한 보상(가격)이 높다는 것을 알 수 있다. 단, 여성 자영업주의 경우는 예외로서, 소득분위가 높을수록 교육의 한계효과가 감소한다. 즉 소득분위가 높은 집단에 속하는 임금근로자와 남성 자영업주는 소득분위가 낮은 집단에 비해 노동시장에서 교육에 대한 보상이 더 큰 반면, 여성 자영업주는 소득분위가 높은 집단에서 교육에 대한 보상이 오히려 작다.

• 한국건설관리학회논문집
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• 제9권3호
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• pp.175-184
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• 2008

안전교육은 작업장 위험에 대해 자기 스스로 보호할 수 있는 기본적인 방법이라고 안전교육 전문가들이 언급한 것처럼 안전교육은 재해예방에 별다른 제한 없이 효율적으로 사용될 수 있는 중요한 안전대책이다. 그러나 건설현장에서의 안전교육은 매우 형식에 치우쳐 교육을 위한 교육일 뿐이며 근로자들에게 안전교육 시간은 지루하고 따분한 시간일 뿐이다. 이러한 이유는 자기와 상관없는 교육내용과 개인적 특성을 무시한 일괄교육에서 기인하며 이는 더 이상 근로자의 자발적 참여를 유도하지 못한다. 따라서 건설근로자들의 개인적 특성에 맞는 다양한 안전교육모델 개발이 필요하다. 이에 본 연구는 건설근로자의 개인적 특성에 맞는 안전교육 모델을 구축하는데 필요한 기초자료를 제공하기 위해 선행연구 분석 및 면담조사를 통해 건설근로자들의 대표적인 개인적 특성 요소와 안전교육 요소를 도출하여 각각의 분류체계를 구축하였으며 마지막으로 건설현장의 근로자에 대한 사례적용을 통해 건설 안전교육의 개선방향을 제시하였다.

• 산업노동연구
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• 제24권1호
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• pp.197-227
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• 2018

이 논문은 건설일용직 노동자들의 사회안전망 강화를 위한 주요 조건으로서 일용직 건설노동자들의 4대 사회보험 의무가입 시행을 위한 기금확충 규모를 분석하고, 이를 추진하기 위한 정책적 과제를 탐색하는데 그 목적이 있다. 건설업은 오랫동안 국내경제에 중요한 기여를 해온 중추적 산업부문임에도 불구하고, 전체노동자의 절반이 일용직 형태의 비정규 노동자 일만큼 산업내 비정규 비율이 매우 높은 대표적 산업이다. 이러한 현실은 건설산업구조의 고유한 특성과 고용구조에서 기인한다. 본 연구에서는 건설업 내의 불안정 노동자들의 사회안전망을 강화하고 건설업의 경쟁력을 강화하는 방안으로 건설노동자들의 사회보험 의무가입이 절대적으로 필요하다는 인식아래 사회보험 의무가입을 위한 기금확충 규모를 분석하고 이를 실현하기 위해 사회보험 가입조건 완화를 비롯하여 적정임금 도입, 직접시공과 같은 구체적인 정책적 과제를 탐색한다.

• 동아시아식생활학회:학술대회논문집
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• 동아시아식생활학회 2003년도 춘계학술대회 특강
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• pp.252-256
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• 2003

As one of the typical Chinese food, rice gruel endows rich culture images. Gruel-eating can be concluded to 6 aspects: the food fur the old, the food fur the weak and the ill, the food for good health and longevity, the food for the hermits and monks; the food far the poor, and the food for enjoyment. In a modem society, the health implication of gruel eating gives many inspirations to medical workers, nutritionist and food manufacturers. People expect the gruels make more contributions to a balanced, diversified, convenient and healthy modem diet.

• 한국농촌건축학회논문집
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• 제16권1호
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• pp.95-102
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• 2014

The number of industrial accident victims in the construction industry accounts for 1/3 of those in the entire industries and about 30% of the total compensation costs are spent in the construction industry. As such, the construction industry is a typical industry causing numerous safety accidents. This study analyzes the status of industrial accidents in small scale construction sites to build maximum five-story buildings by examining statistical data for the past five years, investigating those construction sites and conducting interviews with the workers. This study also seeks the causes of and measures for industrial accidents in the small scale construction industry through comparison with relevant systems. The findings are as follows: (1) To reduce hazard rate, shaping the working environment and safety measures that take into account the physically weak classes of the middle aged and the aging are urgently required, because 62.9% of the industrial accidents in the construction industry occurred to those who are 50 years of age or older. (2) The hazard rate at small scale construction sites with less than 10 construction workers accounts for 55% of that of the entire industries. The government, in this context, needs to support finance or technology and improve system by selecting the small scale construction sites, where industrial accidents occur frequently. (3) Because the hazard rate of unskilled workers with less than 6 months of work experience accounts for 90.95% of the total, safety education needs to be concentrated on those unskilled workers. (4) The relevant standards need to be segmented and revised and bolstered, given that 64.79% of death disaster in the construction industry occurs in the temporary structures including scaffolds and ladders.

• 한국산업보건학회지
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• 제8권1호
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• pp.24-35
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• 1998

Cumulative trauma disorders(CTDs) have been a growing problems for US and European industries with higher incidence rate every year. The increase and their associated costs has led companies to form committes and implement programs to address this problem. In our country, we have just started to recognize and to work on the problems in industry. This study conducted an ergonomic analysis for typical jobs of ship building industry which was not usually surveyed for CTD problem. A baseline CTD checklist which was supposed to do a risk assessment was developed and applied in this study. Initially, we considered five major parts in the checklist which consisted of personal, frequency, posture, force, and miscellaneous information. Most jobs in ship building industry were much different from typical assembly work and VDT work that have been major part of the previous CTD studies. Specifically, job characteristics in terms of frequency and posture were quite different. There were relatively long cycle time, awkward postures for whole body (not just for upper extremities). Also, CTD risk scores based on checklist were a lot higher than the scores for VDT jobs which was a case of preceding application of the checklist. Specifically, grinding jobs turned out to be the most risky one in terms of CTDs. In conclusion, usual CTD prevention guidelines are not likely to he effective in this type of industry. An individual job based interventions are strongly suggested to have a good control of CTD problems in ship building industry.