• 반도체디스플레이기술학회지
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• 제19권1호
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• pp.36-41
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• 2020

In this paper, We need to change all print factors when which print scaffold with 400 ㎛ pore using FDM 3d printer. Therefore the print quantity is 10 billion times, So we are difficult to print on workplace. To solve the problem, we used the prediction model based machine learning regression. We preprocessed and learned the securing print condition data, and we produced different kinds of prediction models. We predicted the pore size of scaffolds not securing with new print condition data using prediction models. We have derived the print conditions that satisfy the pore size of 400 ㎛ among the predicted print conditions of pore size. We printed the scaffolds 5 times on the condition. We measured the pore size of the printed scaffold and compared the average pore size with the predicted pore size. We confirmed that error was less than 1%, and we were identify the model with the highest pore size prediction performance of scaffold.

• Journal of Preventive Medicine and Public Health
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• 제52권5호
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• pp.292-298
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• 2019

Objectives: Presenteeism is currently recognized as a significant global health issue that can potentially cause productivity losses. Hence, many studies have analyzed the relationships between workplace factors and presenteeism. However, few studies have considered non-occupational factors. This study examined the associations between presenteeism and activities outside work, including volunteering, self-development, leisure/sports, and gardening and house repair activities, in Korean wage workers. Methods: This study analyzed the fourth Korean Working Conditions Survey, in which a total of 19 294 wage workers participated. To identify relationships between presenteeism and activities outside work, multivariate logistic regression analysis was used after adjusting for general and occupational characteristics. Results: Self-development and leisure/sports activities significantly increased the odds ratio (OR) of presenteeism (OR, 1.166; 95% confidence interval [CI], 1.061 to 1.282 and OR, 1.276; 95% CI, 1.181 to 1.379, respectively). Conclusions: Certain activities outside work, such as self-development or leisure/sports, were related to presenteeism among Korean wage workers. Although many previous studies have emphasized the positive effects of those activities on health, this study documented negative effects of these activities outside work on health.

• 산업경영시스템학회지
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• 제4권4호
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• pp.43-61
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• 1981

Interest in the Quality of working life is spreading rapidly and the phrase has entered the popular vocabulary. That this should be so is probably due in large measure to changes in the values of society, nowadays accelerated as never before by the concerns and demands of younger people. But however topical the concept has become, there is very little agreement on its definition. Rather, the term appears to have become a kind of depository for a variety of sometimes contradictory meanings attributed to it by different groups. A list of all the elements it if held to cover would include availability and security of employment, adaquate income, safe and pleasant physical working conditions, reasonable hours of work, equitable treatment and democracy in the workplace, the possibility of self-development, control over one's work, a sense of pride in craftsmanship or product, wider career choices, and flexibility in matters such as the time of starting work, the number of working days in the week, Job sharing and so on altogether an array that encompasses a variety of traditional aspirations and many new ones reflecting the entry into the post industrial era. The term "quality of working life" was introduced by professor Louis E. Davis and his colleagues in the late 1960s to call attention to the prevailing and needlessly poor quality of life at the workplace. In their usage it referred to the quality of the relationship between the worker and his working environment as a whole, and was intended to emphasize the human dimension so often forgotten among the technical and economic factors in job design. Treating workers as if they were elements or cogs in the production process is not only an affront to the dignity of human life, but is also a serious underestimation of the human capabilities needed to operate more advanced technologies. When tasks demand high levels of vigilence, technical problem-solving skills, self initiated behavior, and social and communication skills. it is imperative that our concepts of man be of requisite complexity. Our aim is not just to protect the worker's life and health but to give them an informal interest in their job and opportunity to express their views and exercise control over everything that affects their working life. Certainly, so far as his work is concerned, a man must feel better protected but he must also have a greater feeling of freedom and responsibility. Something parallel but wholly different if happening in Europe, industrial democracy. What has happened in Europe has been discrete, fixed, finalized, and legalized. Those developing centuries driving toward industrialization like R.O.K, shall have to bear in mind the human complexity in processing and designing the work and its environment. Increasing attention is needed to the contradiction between autocratic rule at the workplace and democratic rights in society.n society.

• 한국인구학
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• 제34권1호
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• pp.53-72
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• 2011

본 연구는 경력단절여성의 경력단절기간을 생애주기사건과 노동시장조건의 효과를 중심으로 분석하였다. 2009년 여성부의 의뢰를 받아서 한국여성정책연구원이 수집한 "경력단절여성 재취업실태조사" 자료와 다항로짓 방법론을 이용하여, 경력단절여성들의 단절기간을 단기, 중기, 중장기, 그리고 장기로 분류하여 인구학적 변인, 인적자원수준, 생애주기사건, 그리고 노동시장조건이 경력단절기간에 미치는 효과를 분석하였다. 분석결과에 따르면, 재취업의 조건으로 여성들은 자신의 적성과 육아병행에 적합한 일자리 확보를 지적하였다. 또한 여성의 연령이 낮을수록, 인적자원수준이 높을수록, 그리고 노동시장에서의 임금수준이 높을수록 여성들은 장기간 경력단절(60개월 이상)보다는 단기(12개월 미만)의 경력단절을 경험할 확률이 높아지는 것으로 나타났다. 아울러 자녀수가 많을수록, 그리고 자녀양육으로 인해 경력단절을 경험한 여성들이 차별로 인해 단절을 경험한 여성들에 비해 재취업시기가 더 빠른 것으로 나타났다. 그러나 유아기나 초등학교 연령의 자녀를 둔 여성들은 장기적인 경력단절을 경험할 확률이 매우 높은 것으로 나타났다. 이와 같은 연구결과는 여성근로자들의 지속적인 노동시장 참여를 위해서 일가족양립의 제도와 문화조성이 시급하다는 점을 강조한다. 동시에, 자녀양육 이외의 차별적 경험이 장기간의 경력단절을 이끄는 요인으로 나타난 바, 이에 대한 개선정책이 마련될 필요가 있다.

• Journal of Preventive Medicine and Public Health
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• 제38권3호
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• pp.241-251
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• 2005

There has been an enormous increasing trend of widening gap of social inequalities since economic crisis at the end of 1997 in Korea. Since then, Korean society has deteriorated in economic and social conditions; the unemployment rate, temporary or casual workers and absolute poverty have increased. This paper presents the origin of inequalities in work and health in Korea. The origin of inequalities in work begins with the relationship between the capitalist and labourers in the capitalist mode of production. The conception and execution are dissolved in the work process in the capitalist mode of production. Thus, captitalists become control over ther labour process from workers. An alienation of the work process from the workers. The distribution of work is the majour source if inequalities in many countries as well as Korea. This paper presents the increasing tendency of unhealthy states such as mortality, early death, morbidity, physical work load, workplace injury amongst the under-privileged: ordinary workers, unemployed people, casual workers and socially deprived people in Korea.

• 대한안전경영과학회지
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• 제8권6호
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• pp.13-27
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• 2006

The goal of this study is to propose the effective way of finding injurious factors and making improved plan that prevents the workers against musculoskeletal disorders at a semi-finished medical product fabricating company A questionnaire and an ergonomic assessment method were adopted to analyze the symptoms of workers' musculoskeletal disorders, and an analysis of working postures and a quantitative assessment on various processes were performed to find out harmful factors of workplace. Based on the result of the evaluation, to enhance the working environment, improvement of worktable, working space, tools, and outfit was suggested, and induction of mechanical system was also suggested. It can be concluded that the method and process described in this paper could be helpful for diagnosing the musculoskeletal disorders and making improvement plans to the company with similar working conditions and process.

• Industrial Engineering and Management Systems
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• 제14권1호
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• pp.94-103
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• 2015

The purpose of this paper is to provide a review of the background information regarding to the impact of personal control over the physical work environment on satisfaction with work environment and creativity at work. Today creativity has a significant and special place in business especially in innovative organizations which need creative people to generate new, and useful ideas for produce new products, services, work methods, systems etc. Moreover the design and appearance of workspace and individual ability to control the ambient conditions of the workplace have significant effect on their behavior, satisfaction and overall outcome including creativity. So the result of this study will contribute towards enhancing the understanding of the effect of office design to enhance employees' creativity.

• 한국주거학회논문집
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• 제6권2호
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• pp.139-153
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• 1995

The primary goals of this study were to find out how is the mother's perception for the importance of criteria when choosing day care center, and to examine how different there are according to the demographic characteristics, futhemore to investigate how different the importance of criteria when mothers choose an ideal day care center are given the present situation, when mother choose day care center are according to the related variables. The major results of this research are shown as follow: 1. Generally, there was significant differences in the mother's perception for the importance of quality criteria of day care center according to the demongraphic characteristics. 2. There were statistically significant differences in the importance of criteria when mothers choose day care center in 2 conditions: 1) given the present situation(income, trasportation, location of workplace etc.). when mothers choose day care center 2) when mothers choose an ideal day care center regardless of the present situation) according to several demographic variables.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 추계 학술논문 발표대회
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• pp.7-8
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• 2011

The use of foreign labors was inevitable at the construction site in Korea. Most construction companies are being used them in the workplace due to the cheap labor, but their work ability are insufficient as much as Korean labors. In this paper is expected to confirm the foreign labors' employment conditions and study to analyze the changing of foreign labors' work ability.

• 한국가구학회지
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• 제12권2호
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• pp.73-80
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• 2001

The purpose of human factor study is to help the people in good conditions, and to increase the efficiency of physical productivity and mental creativity Also for the furniture design field, the applications of human scale dimensions are considered as the very important aspects. For the design of the office systems furniture, designer must consider the onveniences of variable users as much as possible. To design the office systems for the various work environment, it is necessary to analyze the human scale dimensions according to the furniture items and the user behaviors. In these days, many countries are interested about the workplace ergonomic regulations to reduce a class of injuries called ‘Musculoskeletal Disorders(MSDs)’ by controlling risk factors. In this study, I intend to research and to analyze the features of human scale dimensions and the user behaviors of office environment, and propose some office furniture design tips.