• Proceedings of the Korean Institute of Building Construction Conference
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• 2008.11a
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• pp.213-218
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• 2008

Recently automatic construction system is attended in construction domains because of the increase of aged workers and the shortage of the experienced. The research level of automatic construction system in Korea will soon attain to the stage of full automation like Japan, which is the highest level in the world. However, in the fully automated level, it is difficult for the automatic system to operate flexibly like the human in various work condition. In the result, the higher the level of automation in the system is, the less efficient the automatic system work in the site. So, it's necessary the development material design to compensate for the flexibility shortage of the system. Therefore, this study proposes the development process to material design suitable for automatic construction system using QFD technique.

• Journal of Korean Public Health Nursing
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• v.21 no.1
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• pp.95-101
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• 2007

Purpose: The purpose of this study was to determine the incidence of unintentional-injury and to identify factors related to the high incidence of unintentional-injury in the community in order to provide useful data for the development of prevention and intervention programs aimed at reducing unintentional-injury incidence. Methods: This study utilized data obtained from cross-sectional national surveys conducted for the 2001 National Health and Nutrition Survey targeting 37,769 individuals aged between 0 and 99 years old, which was performed using a face-to-face interview method. Demographic characteristics, unintentional-injury experience, types of injury, and attributes of health behavior were included in the study instruments. Results: About 1.3% of the subjects had experienced unintentional injury that required hospitalization at least once during the past year. Age older than 40 years, male gender, lower education, lower income, and blue collar workers were all significantly and positively associated with increased risk of unintentional-injury. Among the health behavior variables, sleeping less than 6 hours, drunk driving, and binge drinking were significantly associated with unintentional injury, while traffic accidents and falls/slips constituted 80% of all unintentional injuries. Conclusion: Public health efforts to reduce unintentional injuries should target high-risk populations such as males, those with low income and education levels, and binge drinkers.

• Journal of Preventive Medicine and Public Health
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• v.7 no.2
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• pp.305-312
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• 1974

Studies on 66 industrial accidents happened in a battery manufacturing industry during a year of 1973 were carried out. The results obtained are follows, 1. Majority of employees of this industry was occupied by yong woman aged between 20-24. 2. Incidence rate, frequency rate and severity rate of the accidents was 36.8 per 1,000, 12.8 per 100,000 labour day and 0.3% respectively. Anual average days of lost due to accidents was 18.0 days. 3. Accidents happened more frequently in male than female, and happened most frequently in age between 30-34. 4. As to type of work, 47.9% of the accidents happened on hand operating workers. This was the same in both sex. 5. Accidents happened mainly during 2-3 hours latter from work starts in both morning and afternoon work, 6. 63.6% of the accidents happened on hands in both sexes and followed by lower extremities. 7 Surface wounds like as laceration, cut and abrasion were the main types of injury occupying 31.8% and followed by burn at 24.2%. 8. 54.5% of accidents needed 1-2 weeks to heal the injury and heavy injury needed more than 5 weeks was only 9.1%. 9. Accidents happened most frequently in employees who served between 2-3 years in this industry, but observing of sex difference. it was most frequent in male who served more than 4 years whereas less than 6 months in female.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.35 no.2
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• pp.88-97
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• 2012

The muscle strengths in various postures are still used in the workplace, although mechanization and automation have been continuously accomplished. The aim of this study is to measure the maximum muscle strength and analyze the muscle fatigue during the various wrench jobs which are one of the upper limbs related works. Four hundreds and eighty five college students (243 males and 242 females) participated in this study. Twelve muscle strengths which are using for pulling, pushing, lifting and lowering the wrench with various postures are measured. For every moment, the muscle strengths for both hands were measured. In each measurement, five seconds averaged value and peak value were collected. The averaged value of preferred hand and non-preferred hand was compared. Also, the averaged value of opposite movement was compared through t-test. The fatigue of agonist for each movement was analyzed using EMG analysis. The result of this study can provide some basic information not only in designing the tools in work but also in selection, training and management of workers.

• The Journal of Internal Korean Medicine
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• v.19 no.1
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• pp.343-352
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• 1998

This study involved 45 man-smoker outpatients of Han-lim oriental medical hospital from Feb. 1, 1998 to May 31, 1998. The results of this study are as follows ; 1. In sex distinction, the average age was 51.9 years with persons aged 25 to 83 years. 40's and 50's are the most as 12 persons (26.7%) respectively, and in order of the next 30's and 60's are 7 persons (15.55%) respectively, more than 71 years are 5 persons (11.10%), less than 30 years are 2 persons. 2. In occupational distinction, farmers are the most as 20 persons (44.4%), and then common desk workers are 11 persons (24.44%), fishermen are 8 persons (17.78%), the others are 6 persons (13.34%) in that order. 3. In the distinction of chief complaint, cough 39 persons (88.67 %), sputum 29 persons (64.44%), dyspnea 13 persons (28.89%), loss of appetite 7 persons (15,56%), chest pain 5 persons (11.11%) in that order 4. the effects after dosage are as follows ; favorable turn of sputum is the most 89.66%, cough 64.10%, chest pain 60%, dypsnea 53.85%, loss of appetite 28.57%. As a whole, more than 68.32% was improved. As the above, it was thought that Kwarujisiltang administration was evidently effective on a chronic disease of the respiratory organs.

• Journal of Korean Academy of Nursing
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• v.42 no.4
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• pp.525-536
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• 2012

Purpose: The purpose of the study was to evaluate effectiveness of a peer support program conducted by older community volunteers for older adults living alone. Methods: Thirty volunteers trained as peer supporters were matched with low-income, older adults living alone in the community on gender. Visits occurred on a weekly basis over the 12 month study period, and the volunteers provided peer support for health management to solitary older adults. Data were collected, before the start of the program and again 6 and 12 months after its initialization, from intervention and control groups regarding physical health, general health, mental health, depression, social functioning, and satisfaction with social support. Repeated measures ANOVA was used to analyze data. Results: By the end of the program, socially isolated older adults in the intervention group had significantly higher scores in physical health and general health than elders in the control group. Significant interaction effects between time and group were found for depression, social functioning, and satisfaction with social support. Conclusion: The peer support program undertaken by older community volunteers was effective in improving physical health, general health, depression, social functioning, and satisfaction with social support in socially isolated, low-income, older adults.

• Journal of Labour Economics
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• v.24 no.1
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• pp.177-205
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• 2001

This study investigates a long-tenn effect of labor career during middle life on the retirement process and income status later in life course. Two waves of KLIPS (Korean Labor Longitudinal Panel Survey) data sets collected in 1998 and 1999, are employed, which include detailed information on economic activities among those aged 15 and over. Results show that temporary, contracted workers during middle life not only have higher risk of job loss and poverty than those in permanent work status but also they are more likely to experience a stressful retirement process later in life course.

• Journal of Preventive Medicine and Public Health
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• v.17 no.1
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• pp.85-93
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• 1984

In order to develop some indicies for the evaluation of village health worker's activities and to find out personal characteristics and other factors that affect the activities, an interview survey was conducted to thirty seven village health workers (VHW) in Sunwon, Naega and Bulun townships in Kangwha county, where the Community Health Project of Yonsei University, College of Medicine, has been implemented for the past ten years. In addition, daily activity records of the VHW's were also analyzed. The results are summarized below: First, meeting attendance rates, number of regular family visits, number of antenatal care visits and number of family planning visits were identified as the most meaningful criterion for the evaluation of the village health worker's activities. Second, personal factors that significantly affect the village health worker's activities were identified as age, educational background, living with in-laws, religion, presence of preschool child in the family, holding leader's position of village woman's association concurrently, and duration serving as a VHW. The more aged and the more educated VHWs were the more effective. Those VHWs who were living with in-laws, without preschool child in the family, holding the leader's position of the village woman's association, and the longer service duration were the more effective. Other factors that affect the VHW's activities were the number of households in the target village and the number of natural villages in the target villages. It showed that the smaller the size of number of households and natural villages, the higher the degrees of the effectiveness of the VHW.

• Safety and Health at Work
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• v.11 no.1
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• pp.71-79
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• 2020

Background: Protection from yellow dust and particulate matter is ensured by the use of respirators among the Korean citizens and workers. However, the manikins used to test the performance of the same were manufactured considering western facial specifications owing to which they do not represent Korean facial characteristics. Methods: Analysis of the data from the 6th 3D anthropometric survey of Koreans (Size Korea; 2010-2013) of 4,583 people aged 7 to 69 years was performed to obtain their facial dimensions. We subsequently clustered 44 facial measurements using Design X software, followed by the creation of the cluster centroid. Results: Three 3D head forms were developed-small, medium, and large, and their images were stored in ".stl" format for 3D printing. The facial widths and lengths of the three head forms were 127.1 mm × 90.6 mm, 143.2 mm × 104.0 mm, and 149.1 mm × 120.2 mm, respectively. Conclusion: We developed manikin head forms according to the facial dimensions of the Korean population, which was essential in evaluating respiratory protective equipment. These head forms can be used to test the performance of respirators considering the facial dimensions of the Korean population.

• Corrosion Science and Technology
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• v.12 no.4
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• pp.179-184
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• 2013

Pipe wall thinning caused by erosion and corrosion can adversely affect the operation of aged nuclear power plants. Some injured workers owing to pipe rupture has been reported and power reduction caused by unexpected pipe damage has been occurred consistently. Therefore, it is important to develop erosion-corrosion damage prediction model and investigate its mechanisms. Especially, liquid droplet impingement erosion(LDIE) is regarded as the main issue of pipe wall thinning management. To investigate LDIE mechanism with corrosion environment, we developed erosion-corrosion damage simulation apparatus and its capability has been verified through the preliminary damage experiment of 6061-Al alloy. The apparatus design has been based on ASTM standard test method, G73-10, that use high-speed rotator and enable to simulate water hammering and droplet impingement. The preliminary test results showed mass loss of 3.2% in conditions of peripheral speed of 110m/s, droplet size of 1mm-diameter, and accumulated time of 3 hours. In this study, the apparatus design revealed feasibility of LDIE damage simulation and provided possibility of accelerated erosion-corrosion damage test by controlling water chemistry.