• Korean Journal of Agricultural Science
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• v.47 no.4
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• pp.1123-1134
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• 2020

The goal of this study was to develop an accelerated life test for an implement working pump for an agricultural tractor. The field experiments were conducted to measure the load of an implement working pump during major agricultural operations such as plow tillage, rotary tillage, baler operations, and wrapping operations. The measurement system for an implement working pump load was constructed using a pressure sensor, the engine rotational speed, and the hitch pump displacement. The measured implement working pump load was calculated as an equivalent load for each agricultural operation using the Palmgren-Miner rule, which is a cumulative damage method. The equivalent load was calculated using the total load data and peak load data when the total data included the operation of an implement working. The annual usage time of the agricultural tractor was applied to develop two integrated equivalent loads. The acceleration factor was calculated to develop an accelerated life test and was calculated from the two integrated equivalent loads, the maximum pressure, and the flow rate conditions of the hitch pump. In Korea, the warranty life of a tractor is 2,736 hours, and the time required for the test to guarantee the operational life of tractors was calculated as 7,561 hours. The acceleration factors were calculated as 453.6 and 38.3, respectively, from the total load data and peak load data. The fatigue test time can be shortened by 16.7 and 197.4 hours according to the result of the acceleration factors.

• Korea Journal of Hospital Management
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• v.4 no.2
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• pp.1-20
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• 1999

Objectives: Quality of Working Life(QWL) is a set of employee's physical, mental conditions which are perceived at their work. Most employees and managers are concerned about the quality of working life as a strategy for improving organizational effectiveness. The purpose of this study is to investigate the relationship between QWL and organizational effectiveness of employees at the general hospital. Methods : Data were collected by self-administered questionnaires at the general hospital in Kyunggi-Do. Survey was conducted to 675 workers. QWL was measured by using 5 items from the scale developed by Walton(1973). Organizational effectiveness was measured by measuring organizational commitment, intention of job-shift, and job satisfaction. Results: The recognitions to each component of QWL were significantly different by socio-demographic characteristics such as sex, age, education levels and working duration. Also, QWL were significantly different by types of organizational culture. Multiple regression analysis and multiple logistic regression analysis were applied to find the relationship of QWL and organizational effectiveness. As a result, job-pride, compensation, working condition, human relationship and development showed significant relationship with organizational effectiveness. Conclusions: These results show that QWL is significantly related to organizational effectiveness. So we expect that this result will be used as basic informations for management and motivation of employees at the general hospital.

• The Journal of the Korea Contents Association
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• v.9 no.5
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• pp.156-165
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• 2009

This research is for dental hygienists to pursue affection and commitment in organization together with improvement of quality of working life by analyzing factors of working life affecting affective commitment in organization of dental hygienists, to find out plans to increase sense of accomplishments of working life and ultimate satisfaction of life, and to suggest direction for human resources management in management of dental clinics. Objects of investigation were dental hygienists working at dental medical institutions in Busan area with questionnaire survey and 197 sheets of questionnaires were used in the study. As the result of the study, high correlation was shown between composition elements of quality of working life and affective commitment per factor and as the result of quality factors of working life affecting affective commitment in organization, work environment, inter-personal relations, and social meaningfulness provided meaningful impacts on affective commitment in organization. It is believed to be important that dental medical institutions need to promote pride and love of companies in the future by providing regular social services or services for local residents so that employees can form smooth inter-personal relationships among employees with improvement of working environment and welfare in personnel management dimension. And for dental hygienists, they shall improve their work performances and enhance vocational values for development of their institutions and them with positive thinking through ceaseless efforts.

• Transactions of the Korean Society of Automotive Engineers
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• v.12 no.3
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• pp.122-129
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• 2004

In plastic working, as working becomes speedy, automatic and working condition deteriorates, the increase of forging working has been remarkable. Therefore, we need the estimation of mold lift in detail, in order to counterplan of effective mold life extension. In this study, on the SKH51, mold steel which is forged by cold working and the KCW1, tool steel of low alloy, we estimated mold life on the base of FEM analysis and investigated mold lift by low cycle fatigue test. Also, this paper suggested a new method of estimation of mold lift.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2018.05a
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• pp.124-125
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• 2018

The objective of this study is analyzing of requirements for improvement of the work-life balance of construction managers working in Korean construction companies. A survey has been conducted to analyze the requirements for improvement of construction managers. The survey was conducted on construction managers working in the field of architectural construction. 59 field managers working in 18 Korean construction companies responded to the survey. Upon analysis of the survey, the working hours were excessive and recreational time was very poor for the construction managers. There were differences in the answers regarding the areas that require improvement in the working conditions based on the age groups of the construction managers. A majority of young technicians selected that the recreational time and content of work require improvement, and technicians with a lot of experience selected that the stability of occupation and wage require improvement.

• Journal of Families and Better Life
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• v.18 no.2
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• pp.1-14
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• 2000

The purpose of this study is to compared the length of working hours and its effects on family life for Korean and Japanese full-time working couples. For this study, the survey used structured questionnaires and time diaries(one weekday and holiday), and the data were collected in the fall of 1995. A subsample of full-time working couples, 82 couples from Seoul and 79 couples from Tokyo, was used for the purpose of this study. The major findings are as follows; 1) On average, the weekday working hours of Korean husbands were longer than Japanese husbands(11 hours 31 minute, 10 hours 52 minutes a day, respectively). Wives in both countries worked almost identical lengths of time (9 hours 2 minutes in Korea and 8 hours 42 minutes in Japan). Working hours of husbands were longer than those of wives in both countries. Husbands' overtime. Almost (90%) of our Korea sample worked 6 days or 5 1/2 days per week, however the majority (69%) of our Japanese sample worked only 5 days per eek. 2) More Korean husbands and wives reported that their family life was constrained by wives working hours than their Japanese counterparts did. 3) All wives in both countries reported that the husbands long working hours has effects on quality family time. Korean wives perceived that their working hours had effects on time spent on child care, however Japanese wives perceived that their working hours affected their personal time and housework time. Korean husbands agreed with their wives working hours negatively affected their personal leisure time. Japanese husbands reported that their working hours negatively affected their sleeping time.

• Korea journal of population studies
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• v.9 no.2
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• pp.13-29
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• 1986

This study was carried out to calculate working life expectancy and its potential gains according to the degree of reduction in the specific causes of death. It sought to ascertain what potential gains in labor force longevity might be reasonably achieved through efforts to reduce mortality from injuries and poisoning, diseases of circulatory system, neoplasms and the other causes of death. The data were drawn from the three sources such as "The 1982 Causes of Death Statistics," "Abridged Life Table for Korea 1978~'79" and "The 1982 annual Report of Economically Active Population" issued by Economic Planning Board. Analytical tools used in this study were the cause-deleted life table and the Wolfbein Wool's working life table method. Partial life expectancy was adopted as an index of this study, This application will be widely used as a good demographic tool for analyzing the dynamics of labor force and causes of death. Some of the findings are summerized as follows. 1. Partial life expectancies from initial age 15, 25, and 45 respectively to terminal age 65 are 44.86, 35.59 and 17.41 year in life expectancy itself, 37.08, 32.83 and 15.21 year in working life expectancy, 7.78, 2.76 and 2.20 years in inactive life years. 2. Potential gains in working expectancy from initial age 15, 25 and 45 to terminal age 65 by the complete elimination of the specific causes of death are 1.36, 0.94 and 0.27 years in injuries and poisoning, 0.88, 0.83 and 0.54 years in diseases of circulatory system, 0.56, 0.54 and 0.37 years in neoplasms, 1.13, 1.02 and 0.58 years in the other causes of death. The relationship between degree of reduction in causes of death and potential gains in working life years is in direct proportion. The prime orders of reduction effectiveness in age groups by the causes of death are injuries and poisoning in age 15-24, the other causes of death in age 25-49 and diseases of circulatory system in age 50 and over. 3. If it were possible to reduce 25%, 50% and 75% in mortality condition 1978~'79, the average length of working life would be 38.08, 39.13 and 40.17 years in age 15, and 33.68, 34.57 and 35.44 years in age 25, and 15.67, 16.14 and 16.63 years in age 45.

• The Journal of the Convergence on Culture Technology
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• v.8 no.5
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• pp.177-184
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• 2022

This study is tried to contribute to the development of nursing intervention for the health promotion of the elderly by comparing the health-related quality of life (EQ-5D) of the working and non-working elderly using the data from the 8th National Health and Nutrition Survey (2020). The subjects of the study were the elderly aged 65 or older, 512 working elderly and 862 non-working elderly, with a total of 1,374 people. As a result of the study, it was found that the quality of life of the working elderly was higher than that of the non-working elderly in all five areas of health-related quality of life. In particular, the non-working elderly had a lower health-related quality of life at twice (95%CI=1.32-3.14) in the area of self-care compared to the working elderly. Anxiety/depression was found to be 1.6 times (95%CI=1.19-2.35), daily activity 1.6 times (95%CI=1.18-2.25), mobility 1.5 times (95%CI=1.19-1.92), and pain/discomfort 1.2 times (95%CI=1.02-1.64). Therefore, based on this, it is suggested that it is necessary to develop a program that can maintain and promote the independent standard of living and mental health of the elderly.

• Journal of the Korean Society of Fashion and Beauty
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• v.4 no.3 s.9
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• pp.25-34
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• 2006

This study was carried out to examine the level and relevant factors of influencing quality of lift of Hair Designer and to provide basic data to prepare intervention program for them. The data were collected from 733 Hair Designer who worked in beauty shops located in big and small cities including Seoul, Busan, Daegu, Daejon, Gwangju, Gyeongju, Changwon, Andong, using self-administered questionnaire for four months from February to June 2005. The results of this study show that the level of quality of life of Hair Designer are lower than one of workers in other jobs. Particularly, there is a close relationship quality of life, and that the lower the income and the shorter working hours, the lower the level of quality of life. Thus, the health promotion and education program to improve the quality of life of Hair Designer should be developed considering working conditions.

• Journal of Family Resource Management and Policy Review
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• v.22 no.4
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• pp.33-60
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• 2018

This research was conducted to identify factors that affect work-life balance and happiness among married working couples with a double income. To this end, a survey was administered to 260 married working couples in the Seoul metropolitan region. The analysis of the survey responses using the SPSS (Ver. 21) program yielded several important results. First, the variables that significantly affected work-family balance included the number of family dinners eaten together, meaning of life, efforts to strike a work-life balance, and the availability of social institutions and policies that promote work-life balance. Variables that significantly affected work-leisure balance included meaning of life, number of family dinners eaten together, gender, and the availability of social institutions and policies that promote work-leisure balance. As for work-growth balance, significant variables included meaning of life, communication with colleagues, income, and meaning of work. Finally, variables that significantly affected happiness included meaning of life, income, communication with colleagues, and work-growth balance. Based on these results, follow-up research needs to be conducted on various groups to help determine the factors that will ensure their work-life balance and happiness.