• 한국건설관리학회논문집
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• 제6권5호
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• pp.139-147
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• 2005

During a typical construction project, a contractor nay often find that the time originally available or normally expected to perform its work has been severely reduced. To finish the project by the completion date, the contractor is forced to find a way to speed up the progress of its work to compensate for the reduction in available time. The most frequent initial reaction of contractors to this situation is to increase on-site manpower by working longer time (overtime), adding more workers (overmanning), or implementing shift work (shift work) to increase the rate of progress. The goals of this study were to investigate how these three methods affect labor productivity and to quantify their impact on labor productivity by analyzing real project data collected from sheet metal contractors and mechanical contractors in the US.

• 대한방사선기술학회지:방사선기술과학
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• 제46권1호
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• pp.43-52
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• 2023

The purpose of this study was to investigate the actual conditions related to the working environment of radiological technologist who is working in small or medium-sized hospitals or clinics. The results of this study were intended to improve the working environment of radiological technologist and care for patients. For data collection, a structured questionnaire was used as a research tool, and 838 women (52.4%) were used as a general characteristic of 1,598 people subject to this questionnaire. The annual salary of radiological technologists with less than one year experience was 33.76 million won, and the average annual salary of radiological technologists with more than 10 years of experience was 41.33 million won. It showed an increased of 1.84% per year. Among 1,540 radiological technologists, 879 workers were paid holiday work allowances, 340 workers did not, and 321 holiday workers work during the week. In addition, a total of 817 workers received overtime payment, of which 112 received overtime wage on a monthly basis regardless of the overtime hours. In addition, a total of 348 radiological technologists were not paid overtime wage, and 138 workers were included in the basis salary. There were no union in 85% of the them. According to the results of this study, the wages and working environment of radiological technologists in small or medium-sized hospitals or clinics were not appropriate. Therefore, the efforts of the radiological association and its members are necessary to provide a better working environment for radiological technologists. In addition, it is expected that this study will be used as basic data for the association's policy to improve the working environment of members who work in poor conditions.

• 벤처혁신연구
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• 제6권3호
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• pp.149-164
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• 2023

혁신과 창의성이 점차 중요해지는 오늘날 인적자원에 대한 관리는 기업의 성과와 경쟁적 우위를 위한 핵심요인이다. 이에 기업은 목표달성과 조직성과 제고를 위해 구성원을 대상으로 다양한 유형의 지원방식을 시행·도입하고 있다. 기업이 가진 조직문화와 조직 신뢰는 구성원의 인지적·정서적 상태에 영향을 미치며 나아가 직무 스트레스, 직무 만족과 같은 조직성과에 변화를 가져올 수 있다. 또한, 제도적인 관점에서 일과 삶의 균형 역시 조직성과에 영향을 미치는 주요 요인으로서, 일과 삶의 불균형은 사기저하, 직무에 대한 불만족 등 조직성과 하락을 초래한다. 일과 삶의 균형과 관련하여 저출산 문제가 심화되며 중요성이 대두되기 시작하였다. 이에 정부는 근로자들의 일과 삶의 균형을 위해 다양한 정책적 지원을 시행하였으며, '주 52시간 근무제'가 대표적인 예에 해당한다. 이에 본 연구는 경쟁가치모형을 적용한 기업의 조직문화가 근로자들의 직무 스트레스 미치는 영향 관계에 대해 분석하고, 주당 초과근로시간, 조직 신뢰가 가지는 매개효과를 분석하였다. 직무 스트레스는 직무 몰입, 직무 만족, 이직의도에 영향을 미치는 전제에 해당한다. 그러나 기존 연구의 경우 직무 스트레스를 조직성과로 측정한 연구는 미비한 실정이다. 더하여 초과근로시간과 조직성과 관계를 분석한 연구가 드물다는 점을 고려했을 때 영향 관계를 파악할 필요가 있다. 따라서 본 연구에서 설정한 가설을 검증하기 위해 ?인적자본기업패널(HCCP)근로자?-(2021년) 데이터를 활용하여 자료를 수집한 후 구조방정식모형(SEM)을 사용하였다. 연구결과는 다음과 같다. 첫째, 위계 지향적인 기업의 조직문화는 근로자들의 직무스트레스를 증가시킨다. 반면 혁신지향, 관계지향, 경쟁지향적인 기업문화는 직무스트레스를 감소시킨다. 둘째, 위계 지향적인 문화는 조직에 대한 신뢰를 감소시켰으며, 이외의 조직문화는 조직에 대한 신뢰를 증가시킨다. 셋째, 관계지향적이며, 경쟁지향적인 기업의 조직문화는 주당 초과 근로시간 감소에 영향을 미쳤으며, 혁신지향적이며 위계지향적인 문화는 초과 근로시간을 증가시키는 것으로 나타났다. 넷째, 조직에 대한 신뢰와 주당 초과 근로시간은 기업의 조직문화와 직무스트레스를 매개하는 효과를 가지는 것으로 나타났다. 이러한 분석결과를 바탕으로 본 연구는 학문적 및 정잭척 시사점을 제시하였다.

• 산업경영시스템학회지
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• 제6권8호
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• pp.41-48
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• 1983

On the studies of the occurrence & countermeasures of industrial fatigue, the authors obtained the following results in the prevention & recovery of the industrial fatigue. Do not overtime work. To remove the unnecessary behaviors movement. To decide the standard amounts of work. Take a rest property in the procedures of work. Adjust & Arrange the work environments. Take a sufficient mutvition calories. Have plenty in reserve worktime. Set up modernizing machinery. To pay living wages.

• 경영과학
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• 제17권2호
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• pp.55-65
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• 2000

This paper addresses a problem of machining route selection in multi-stage process with machine group. This problem is considered the subcontracting and the production in-house such as regular and overtime work. the proposed model is formulated as a 0-1 integer programming constraining the avaliable time of each machine for planning period and total overtimes. The objective of the model is to minimize the sum of processing cost, overtime cost, and subcontracting cost. To solve this model, a genetic algorithm(GA) approach is developed. The effectiveness of the proposed GA approach is evaluated through comparisons with the optimal solution obtained from the branch and bound. In results, the same optimal solution is obtained from two methods at small size problem, and the consistent solution is provided by the GA approach at large size problem. The advantage of the GA approach is the flexibility into decision-making process because of providing multiple machining routes.

• 산업경영시스템학회지
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• 제22권51호
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• pp.221-230
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• 1999

Many enterprises are performing the production planning computerization for survival in unlimited competing period. But it is very difficult to directly apply many production planning softwares to the domain-specific areas of many small enterprises because one enterprise is different from the others with respect to product type, production process, and order fulfillment method. Practically most small enterprises depend on experienced production managers in production planning, so then many problems such as overtime work and cost have been appeared. The purpose of this study is to develop production planning module for order-made production system in order to reduce overtime works and surplus costs. We developed production planning module with RDBMS, which is fit for small manufacturing company. Developing this software, we use Visual Basic 5.0 to provide GUI environment for the production planning module and Microsoft Access 97 is used to construct Database. This production planning module is applied to enhancement of productivity in M manufacturing company located in Asan.

• Annals of Occupational and Environmental Medicine
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• 제35권
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• pp.20.1-20.7
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• 2023

The policy proposal by the current Korean government that proposes flexible overtime rules is causing social controversy. This study has explored the 612 experts' opinions on the occupational safety and health impacts of the policy using an online self-report survey. They expected short-term overwork (87.25%), overwork inequality (86.44%), irregular working hours (84.31%), chronic overwork (84.15%), long working hours (83.66%), and unpredictability of working hours (81.86%) as a result of the policy change. They also responded that the policy change would increase industrial accident deaths (87.25%), mental illnesses (87.09%), deaths due to overwork or cardiovascular diseases (83.84%), and accidents (83.33%). They disagreed that the government's flexibilization policy, while agreeing that the necessity of policies on regulating night work (94.77%), guaranteeing wages to eliminate overtime (90.36%), establishing working time regulations for the bogus self-employed (82.84%), and applying the 52-hour workweek system to all workplaces (76.47%). These expert opinions are consistent with previous research on the health effects of working hours.

• 보건의료산업학회지
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• 제12권1호
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• pp.123-135
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• 2018

Objectives : The purpose of this study was to analyze the effects of welfare workers who are economically active as wage earners after undergoing industrial accidents on their turnover intention in terms of demographic, working environment, and health characteristics. Methods : The data were analyzed in this study with the chi-square test and logistic regression using SPSS ver. 22.0 to analyze the factors influencing the turnover intention of industrial workers(PSWCI, 2016, N=1,083). Results : Model 1 included age, education, average wage, and union, Model 2 includer the number of workers in the workplace, average number of working days, overtime, and employment status were statistically significant. Model 3 included characteristics of health, Model 4 includer education, average wage, union, average number of working days, overtime, employment status were statistically significant. Conclusions : It is necessary to develop tools, indicators, and systematic and step-by-step programs to evaluate the stable work environment in the workplace, as well as to improve workers' return to work.

• 한국임상보건과학회지
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• 제12권1호
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• pp.1660-1667
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• 2024

Purpose: The purpose of this study was to identify Relationship between job stress and job satisfaction of dental hygienists Methods: The subjects of this study were to 173 dental hygienists who work in dental diseases and clinics in Busan, Ulsan, and Gyeongnam, and through the Internet link using web questionnaire from August 1 to October 30, 2023. Distributed and collected. The collected data were analyzed using an IBM SPSS ver. 26. Results: As for general characteristics, job stress was high in the 40s age group, work experience was high in the 1-4 year group, and job satisfaction was high in the 4-7 year or more group. As factors affecting job satisfaction, it was found that the lower the Self- determination of duties , the lower the Job insecurity, and the lower the Inadequate compensation, the higher the job satisfaction. Conclusions: From the above results, in order to increase the job satisfaction of dental hygienists, it is necessary to ensure stable employment and at the same time allow them to focus on tasks specific to dental hygiene, as job satisfaction decreases if a lot of chores unrelated to dental hygiene work are performed, and Self- determination of duties and an appropriate compensation system must be established. If an excessive workload is given or there is frequent overtime work, compensation should be made commensurate with experience or ability, and in the case of frequent overtime work, appropriate compensation should be provided through allowances or incentives.

• Annals of Occupational and Environmental Medicine
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• 제35권
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• pp.19.1-19.5
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• 2023

There are several types of shift work in Korea: rotating shift, 24-hour shift, day-night shift, fixed night work, and.so on. As a result of analyzing the 8th Korea National Health and Nutrition Examination Survey and the 6th Korean Working Condition Survey, Korean shift workers accounted for 11.6%-13.9% of wage workers. Weekly working hours of shift workers were 57.69 ± 1.73 (24-hours shift) and 49.97 ± 0.67 (fixed night shift), which were significantly longer than day workers. To prevent health consequences of night work, many countries regulate the working hours of night work not to exceed 7-9 hours a day. However, Korea does not regulate working hours for night work, and some occupations may work more hours than the prescribed overtime hours. To prevent health consequences and reduce working hours for Korean night shift workers, it is necessary to regulate the working hours of night shift workers by law.