• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.9 no.3
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• pp.257-265
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• 2016

In this study, an optimal design for motor-driven track type traveling system applied into high clearance working machineries in orchard is proposed. Tractive performance and hill climbing ability were predicted and evaluated for the optimal motor traveling system by taking into account of soil characteristics in orchard utilizing the high clearance working machineries. Design criteria for tractive performance were based on the traction force calculated from tractive effort subtracted by motion resistance, while hill climbing ability had its design criteria that fulfill the climbing 20% slope ground at a speed of 3km/h. Based on the evaluation results of traction and climbing ability, two DC48V, 4500rpm, 1.6kW AC motors were independently applied to both left and right side of orbits; each motor is designed to transmit power on driving sprocket of track type traveling system via 50:1 reduction gear ratio. The motor-driven track type traveling system developed in the study found to have 396 kgf of tractive force, which is 12.5% higher than climbing resistance at orchard soil having 20% slope ground (352 kgf), demonstrating sufficient tractive performance and hill climbing ability.

• Journal of Korean Public Health Nursing
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• v.10 no.2
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• pp.37-50
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• 1996

To analyze the roles by abilities between manpower through the analysis of industrial health service agency personnel, 115 industrial health service agency personnel in 19 Industrial Health Service Agency personnel scattered in Seoul and Kyungki areas have been investigated according to the questionnaires formulated in line with the Likert 5-point scale from September 1 through October 30, 1995 and the following significant result has been obtained: 1. The job abilities by fields. 1) In the field of health care, the level of medical personnel's job ability was 3.30 on average and that of industrial hygienists' was 2.54 on average, which showed that the level of medical personnel's job ability was higher. 2) In the field of health management, there was a difference between the level of medical personnel's job ability and that of industrial hygienists' only in the health education but there was not so much difference between manpower' which showed that it was 3.00 on average. 3) In the field of working environment management. the level of industrial hygienists' job ability was 4.03 on average and that of medical personnel's was 2.62, which showed that the level of industrial hygienists' job ability was higher than that of medical personnel's. 2. The job abilities by manpower. As for the job ability by manpower. on the health care the medical personnel's ability was more excellent than the industrial hygienists' and on the working environment management the latter's{industrial hygienists') ability was more excellent than the former's(the medical personnel's). However. the field that a difference between both manpower as mentioned above was not recognized was the health management. 3. As for the difference of potential factors between manpower. in Factor '1' the industrial hygienists' 80.7 points by percentage was higher than the medical personnel's 52.5 points and in Factor '2' the latter's(medical personnels's) 72.6 points by percentage was higher than the former's{industrial hygienists') 50.6 points in the level of job abilities. The above result shows that the industrial health service agency personnel can be classified into the job with a difference between manpower and that without any difference manpower. Therefore, the following issues: First: The field of health care shall be defined as the medical personnel's exclusive job. Second: The field of working environment management shall be defined as the industrial hygienists' exclusive job. Third: The field of health management shall be defined as a common job to lead the limits of time and space in the collective group occupational health management to be controlled effectively.

• The Journal of Industrial Distribution & Business
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• v.12 no.7
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• pp.15-25
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• 2021

Purpose: The greatest asset to all organizations is the employees and they should be guarded against factors hindering their work ability. Nevertheless, most organizations are always more concerned about making profits to the extent of forgetting their employee's welfare. On this point, this study aims to examine employee's work-related stress and its relationship with work ability. Research design, data and methodology: This study focused on obtaining mostly peer-reviewed works to suggest research findings, assuming that qualitative literature approach allows researchers to explore in-depth information concerning complex issues in a standard life setting. Numerous prior researchers applied their research design in content analysis, especially where various concepts are present for analysis. Results: Based on numerous qualitative textual resources, this study found that human resource practitioners should plan stress management strategies for their employees to apply five kinds of solutions that the current study suggests because it is vital to ensure their wellbeing towards sustaining their performance. Conclusions: All in all, based on the findings, this study concludes that employee's work stress negatively impacts their work ability with affecting their mental health. As a result, there is little doubt that practitioners should regularly monitor the working environment for stress-related factors besides creating a healthy working environment for all employees.

• Fashion & Textile Research Journal
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• v.11 no.1
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• pp.174-179
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• 2009

The purpose of this study is to research the actual condition of working environment, working clothes and personal protective equipments on workers at a construction site in winter. The one to one interview by questionnaire was performed with 33 males and 2 females workers of a construction site in Daegu at $1.3^{\circ}C$ air temperature, 28% R.H., 4.7m/sec air velocity. The questionnaire consisted of 21 questions including 4 personal characteristics questions, 12 working environment/performance questions and 5 working clothes/personal protective equipments questions. It was modified from the original questionnaire developed by Finnish Institute Occupational Health. We found that physical stress of workers increased and the ability of performance decreased. The workers felt the coldest at hands/fingers, feet/toes and the face part of cheek, nose and ears. They rarely wore thermal clothing for winter and answered that the thermal gloves for winter did not provided enough warmth. Even if the workers recognized the necessity of personal protective equipments for their safety, they did not wear them for efficiency of working performance. These results will be useful elementary materials for development of working clothes and personal protective equipments from the viewpoint of improving both working performance and comfort.

• Journal of the Ergonomics Society of Korea
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• v.31 no.1
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• pp.171-176
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• 2012

Objective: The goal of this study was to assess work ability of Korean workers in the shipbuilding industry. Background: Old age is associated with inevitable time-dependent losses in physical capabilities. However the maintenance of physical capabilities is essential for continuing independence in old age. The work ability index(WAI) was constructed to reveal how well a worker is able to perform his or her work. Method: The WAI is a kind of survey methods developed to estimate the work capacity of aged workers by the Finish Institute of Occupational Health(FIOH) in 1998. The difference of the WAI between groups in each category was tested using the Kruskal-Wallis test, and the relationship between the WAI and the workers' ages was tested by the Correlation test. Results: This study surveyed 2,709 persons working in the shipbuilding industry in Korea. The average WAI score for all workers was 40.0 denoting a Good Level. Also, workers in the shipbuilding industry had lower work ability, as compared to the results of other industries. The WAI was analyzed for different age groups(${\leq}29$; 30~34; 35~39; 40~44; 45~49; 50~54; ${\geq}55$). The results of Kruskal-Wallis test showed that significant difference was identified on the effect of aging(p<0.05). Conclusion: Advanced countries like the Finland showed decreasing tendency in good and excellent levels as aged, but there was no decreasing tendency in Korean population. The results may be attributable to the general characteristics of Korean society, such as poor social security and burden caused by role of the patriarch. It may bring forth higher work ability in aged population even their physical condition is getting worse. Application: This finding could be used for developing more accurate assessment tool of work ability for working environment.

• Journal of the Korean Society of Safety
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• v.28 no.3
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• pp.100-106
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• 2013

According to the Statistics Korea, in 2011, people over the age of 65 years old accounted for 11.8% of Korea's population. This number is expected to rise to 15.0% by 2019, making Korea an "aged society". As age increases, physical ability degrades to the point that the workload must be adjusted limitations. However, workloads are given regardless of workers' ages or abilities. In addition, a decline in work efficiency due to aging also increases the risk of work-related injuries. Furthermore, the cases of stress related diseases along with musculoskeletal disorders(MSDs) rise as main factors of industrial disasters and excessive job stress gives negative influence not only on mental health but also on physical health so that job stress becomes a hot issue as a main cause of work ability falloff and turnover. The purpose of this research is to examine how the sociodemographic characteristics, MSDs symptoms and musculoskeletal workload of workers in the manufacturing industry of automobile parts influence work ability and job stress. As a result of the research, job ability showed significant differences statistically according to age, working year, sex, marital status and musculoskeletal workload and job stress showed significant differences statistically according to age, working year, marital status and musculoskeletal workload. In addition, it showed that as the worker's job ability decreases, job stress increases.

• Journal of the Korean Home Economics Association
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• v.44 no.1 s.215
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• pp.11-23
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• 2006

This study investigated the general trends and differences in the working life of overseas Korean women. The subjects were 872 working Korean women over 20 years of age living abroad in America, China, and Russia Central Asia. The subjects completed a questionnaire on working life and the data were analyzed using SPSS. The working environment of Korean-American women was not stable. Many Korean-American women worked to help the home economy. They were paid by the hour, day and week. On the other hand, many Korean-Chinese women worked for self-achievement and usually for 8 hours a day. The working life of Korean women in Russia Central Asia was not good. They had a small income and worked to help the home economy. The first variables for changing their occupation were income and bonus. Despite their unstable working environment, overseas Korean women estimated their working life positively. They rated scores higher than the median on job satisfaction, business importance, duty ability, duty adaptation and family support. Job stress showed lower scores than the median. Korean women in Russia Central Asia showed lower scores on job satisfaction, family support, and work time flexibility than the other two groups.

• Journal of Family Resource Management and Policy Review
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• v.14 no.1
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• pp.97-118
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• 2010

The purpose of this study is to provide background information to help develop family-friendly policies which aid in the ability for employees to balance family and work, and to increase the effectiveness and feasibility of these policies at work sites. We surveyed the performance and usage of work-family balance policies among working mothers with young children. We also examined the factors influencing the job satisfaction of working mothers. The study sample consisted of 237 working mothers with young children. We found that family economic status, working mother's experience of family leave or maternity leave, and easiness of policy use are important factors in a working mother's job satisfaction. Especially when individual and job characteristics are controlled, the most influential factor on working mothers' job satisfaction was the experience of family leave or maternity leave. In addition, the easiness of family-friendly policy use was a significant factor in working mothers' job-satisfaction.

• Journal of Korean Academy of Nursing
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• v.31 no.3
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• pp.492-505
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• 2001

Purpose: This study aims to find the sources of nurses' conflicts and to find ways to eliminate them for improved nursing care. Method: This study is based on a phenomenological approach. All participants were woking at K-hospital, located in Seoul. The research was performed from September 2000 to February 2001. Data was collected through interviews and observations while participants were working. Interviews lasted a duration of one and half hours and data collection accured five to six times per participant. The data were analysed by Giorgi method and the results are as follows: Result: Essential themes in the professional conflict of clinical nurses emerged (1) The discords of human relationships ; (2) Dissatisfaction with working conditions ; (3) Lack of self-respect in one's professional expertise ; (4) Dissatisfaction with one's work ; (5) Depression accurring due to one's ability as a professional. Conclusion: The foregoing arguments suggest that nurses perform stressful environments in a hospital originating from the relationship among peer group, working conditions, and lack of self-respect as a nurses. Therefore, hospital authorities should strangly consider working conditions, interpersonal relationships, and working conditions in order to promote self-respect of the nurses hospitals.

• Korean journal of food and cookery science
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• v.20 no.3
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• pp.299-309
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• 2004

This study investigated the degree of expectation and satisfaction with internship program of undergraduates majoring in culinary studies, and suggested improvements in satisfaction for training programs. Differences between expectation and satisfaction were significant in all 21 items including pay for internship program, rest spaces, and break time during working. Expectation questions were extracted to five factors. Factor 1 circumstances of kitchen Factor 2 staff's ability and attitude Factor 3 working environment Factor 4 working hours and pay and Factor 5 rotation, period, and placement of jobs. Five factors were also obtained from factor analysis of satisfaction. Factor 1 working hours and rest Factor 2 staff's attitude and pay Factor 3 facilities and sanitation Factor 4 circumstances of kitchen and Factor 5 period and placement of jobs. Overall satisfaction values showed significant differences depending on gender, school-year system, grade, age, and school. The working hours and rest factor had the most significant influence on the overall satisfaction with internship program of undergraduates majoring in culinary studies.