• Safety and Health at Work
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• 제10권1호
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• pp.61-66
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• 2019

Background: Emergency workers such as firefighters are cataloged within the most demanding and injurious professions globally. Considering the health and safety implications in firefighting, a lot of research needs to be conducted to examine how firefighters' task characteristics and their work demand influence the development of work-related musculoskeletal disorders (WMSDs). This study therefore examines how the task characteristics of firefighters moderates the relationship between their work demand and the development of WMSDs. Methods: Convenient sampling was employed to select 320 firefighters in the Greater Accra region of Ghana. Data were analyzed using descriptive statistics, correlation, and regression. Results: The findings revealed that work demand and task characteristics have significant positive effects on WMSDs. Again, the task characteristics of firefighters moderates the relationship between their work demand and WMSDs. Conclusion: Since the study shows that task characteristics influences the relationship between work demand and WMSDs, it is vital for managers to constantly modify the nature of tasks performed by and work demand of emergency workers to minimize the development of WMSDs and other industrial health complications.

• 대한교통학회지
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• 제4권1호
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• pp.12-27
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• 1986

This study examined user preferences toward transportation modes in Seoul. Two multidimensional scaling models, the ideal point and vector models, were applied to data on mode preferences of 114 adults in the metropolitan area. While both models produced fairly similar results, the vector model performed slightly better than the other in terms of interpretability of the results. The transport attributes elicited are comfort, flexibility, travel cost, travel time, privacy, and safety; among which comfort is salient most. The comfort variable is a multi-faceted attribute in nature. The variations of attribute preferences are most significant between the gender groups as well as worker/nonworker groups. In particular, male workers, female workers and female nonworkers form three distinctive market segments. An unidimensional scaling of the preference data reveals that subway, auto-driver, and subscription bus modes are preferred most, whereas motorcycle and bicycle least. The other modes of express bus, taxt, auto-passenger, bus and walk rank intermediately. An examination of how preference orders vary among modal groups hints that users align their stated attitudes to their choice in order to reduce cognitive dissonance.

• Safety and Health at Work
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• 제13권2호
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• pp.135-140
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• 2022

Background: Coal mining is a hazardous industry. The purpose of the study is to identify the nature of occupational injuries and diseases among coal miners and to determine the factors that affect the rate of injury and duration of time loss from work. Methods: A retrospective cohort study was conducted using accepted workers' compensation claims data of 30,390 Australian coal miners between July 2003 and June 2017. Results: Musculoskeletal and fracture conditions accounted for approximately 60% of claims in all occupational groups. Cox regression analysis showed that older age and female gender were significant predictors of longer time off work. Injury types and occupations were associated with work time loss: mental health conditions, and machine operators and drivers had significantly longer durations of time off work. Conclusion: Future research can further address how these factors led to longer time off work so that coal industry regulators, employers, and healthcare providers can target interventions more effectively to these at-risk workers.

• 가정과삶의질연구
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• 제16권1호
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• pp.125-139
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• 1998

This study investigates work loads and coping strategies of the married female production workers(MFPW). The data of 370 MFPW in manufacturing sector in Taegu are collected by using a questionare in August 1995 The findings of this study are as follow: 1) The results of objective work loads assessed time dairy show that the average working hours is 14.25 hours during weekdays. The respondents spend 11.5 hours and 2.75 hours on doing paid and household work respectively,. The shortage of phisiological and leisure time due to spending excessively long time on work. 2) MFPW perceive the severe subjective work loads in the areas of personal family and social life. The perceived burden from paid work itself is relatively low due to the nature of their job. 3) The coping strategies MFPW actually adopted are limited mostly to those from an individual domain such as shortening the time for sleep leisure or household labor.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 가을 학술논문 발표대회
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• pp.46-47
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• 2021

In the construction industry, due to the nature of the job, the need for job training to maximize the performance of the job and to improve the organization's qualifications is needed to acquire professional knowledge that is practiced according to the training needs of the members of the organization. In the form of education, the government or the government or the government provides systematic and planned professional job training that is implemented to improve qualifications and instill pride in the profession by helping the employees of the design office acquire new knowledge, skills, and attitudes necessary for professional performance. Although it is recommended at the organizational level, as a result of examining the implementation, it was found that most workers did not receive job training activities. Therefore, follow-up studies that can maximize work efficiency at the individual and organizational level of design office workers should be continuously performed.

• 노동경제논집
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• 제33권2호
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• pp.135-164
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• 2010

본 연구는 기술진보의 소득증대 효과가 근로자의 직무(숙련) 특성에 따라 다를 것이라는 전제 하에, 산업간 기술격차가 근로소득에 미치는 영향을 자영업과 임금근로로 나누어 비교 분석하였다. 실증분석에는 한국노동패널조사(KLIPS) 자료를 사용하였고, 2단계 추정법과 분위회귀분석을 사용하였다. 분석 결과, 임금근로(직업특수적 숙련)에 대해서는 기술진보의 소득증대 효과가 고학력자에 집중되는 반면, 자영업주(경영가적 숙련)에 대해서는 기술진보의 소득중대 효과가 모든 학력계층에서 나타났다. 이러한 부문별 차이는 분위회귀분석에서도 동일하게 나타난다.

• Journal of Radiation Protection and Research
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• 제48권1호
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• pp.20-27
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• 2023

Background: As the number of nuclear facilities nearing their pre-determined design life increases, demand is increasing for technology and infrastructure related to the decommissioning and decontamination (D&D) process. It is necessary to consider the nature of the dismantling environment constantly changing and the worker doing new tasks. A method was studied that can calculate the effect of learning and the change in work time on the work process, according to the learning-forgetting curve model (LFCM). Materials and Methods: The LFCM was analyzed, and input values and scenarios were analyzed for substitution into the D&D process of a nuclear facility. Results and Discussion: The effectiveness and efficiency of the training were analyzed. It was calculated that skilled workers can receive a 16.9% less collective radiation dose than workers with only basic training. Conclusion: Using these research methods and models, it was possible to calculate the change in the efficiency of workers performing new tasks in the D&D process and the corresponding reduction in the work time and collective dose.

• 한국조경학회지
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• 제24권2호
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• pp.43-51
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• 1996

The main purpose of this study is to obtain information on users' socio-economic characteristics, pattern of main use activities, and visit motivation in recreation forests. From June to September in 1994, respondents were selected 548 adults more than 18 years old from 6 recreation forests which were classified 3 recreation forest types as 2 recreation forest in national forest, 2 in public forest, and 2 in private forest. Analysis of data was conducted through frequency and factor analysis. The most of noticeable characteristics of users were rather 30's age group, high education level, company workers, city residents. The major preference activities in recreation forest were resting, enjoying green shower, and walking. In 24 items of visit motivation, resting, releasing stress, enjoying in a cool forest & valley, and contacting close to nature were high preference, while buying special product, and contacting close to nature were high preference, while buying special product, having enough and to money, observing wildlife, and training body & mind were low preference. The remarkable difference in 3 recreation forest types didn't present. Eight dimensions of motivation were classified through factor analysis.

• 한국식생활문화학회지
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• 제20권6호
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• pp.688-694
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• 2005

The objective of this study is to identify factors affecting the job satisfaction of cook(n= 173) employed in school food service and to propose a plan to improve school foodservice quality. The subjects were cook employed by school in Chungchon province, Gwangju area. The average of cook's job satisfaction was 3.06, the rank factor for nature of work(4.25). the co-workers(3.28), the organic environment(3.17), promotion welfare payment(2.31), the physical environment(2.29) shown respectively. The highest satisfaction with nature of work and organic environment was indicated in the areas of the group of higher age, and cooks who received college education showed significantly lower job satisfaction in physical environment. The highest satisfaction for promotion welfare payment, and physical environment shown in the group of higher length of service who receive higher wages. The groups of regular job shown higher result in the nature of work(3.46>2.94), organic environment(3.46>2.94), promotion welfare payment(2.88>1.94) comparing to irregular job. It is necessary to elevate cook's low satisfaction for improving their work efficiency and the quality of elementary school foodservice.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1993년도 Proceedings of International Conference for Agricultural Machinery and Process Engineering
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• pp.617-626
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• 1993

Energy saving is a very important subject for research workers nowadays. While most people are concerning with the modern methods, the authors investigated this problem from another angle- the chinese traditional methods of energy saving. The tunnel with technique and its combination with computer simulation and fuzzy compressive judgement methods are discussed. Earth heat green house, marsh gas, solar energy underground storage system, storing of nature cold sources, have been introduced in this paper.