• Proceedings of the Korea Concrete Institute Conference
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• 1993.10a
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• pp.207-212
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• 1993

When constructing highly precise production plants, for example, super LSI plants or semiconductor plants, it is important to take the necessary control countermeasures into consideration to obtain the working microvibration environment, which is directly related to product precision. Working environment of a clean room means vibration-free and there are only ultra-miro vibration which human cannot sense. In order to provide an place having a vibration-free working environment with only ultra-micro vibration it is necessary to posses a great number of vibration isolation technlogies, wide-ranging and abundant survey and teat data, and a high level of knowledge enabling comprehensive judgments to be made. In this study, experimental modal analysis is used to analyze the dynamic characteristics of double floor for vibration-proofing near apparatus which generate vibration. It is concluded that the double floor system with rubber pad inserted between floor panel and pedestal is good for vibration proof.

• Journal of the Korean Institute of Rural Architecture
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• v.7 no.3
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• pp.76-83
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• 2005

According to the results of analyzing the formation enterprise of beautiful public latrines, which Chungcheongnamdo is promoting, the conclusions of this study are as follows. The design for construction form should be suitable well for the surrounding environment according to the installation place of public latrines. Construction scales and sanitary appliances should be decided according to the location, use personnel, use frequency, and user type of latrines. It is not desirable to decide working expenses on the basis of pyeong irrespective of construction scale. In the purchase of building sites, because the building sites owned by the nation or the public bodies are difficult to apply the related laws, it is difficult to construct public latrines as eternal facilities. Because the building sites owned by individuals are very expensive, the execution of enterprises is difficult. Therefore, it is necessary to simplify the administrative procedures and increase the working expenses.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.20 no.5
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• pp.351-356
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• 2008

In this study, we had the stress analyses of TBP used in Tall Building and determined the working pressure of TBP. We knew the four fact. First, the place acted maximum stress is axial direction of branched part. Second, working pressure is more than 2.0 MPa. Third, stress in branched part is less than yielding strength at hydrostatic test pressure. Fourth, the ratio(stress/yielding stress at hydrostatic test pressure) is $0.4{\sim}0.6$(KS D 3562 Sch 40), $0.3{\sim}0.4$(KS D 3576 20S).

• Journal of Korean Academy of Nursing
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• v.25 no.1
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• pp.110-123
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• 1995

This study was done to analyze the relationship between task stress and morale in psychiatric nursing assistants. The subjects were 118 psychiatric nursing assistants selected from the National Mental Hospital in Seoul and 18 non-medical mental institutions. The data were collected from October 22 to November 12, 1994. The instruments used for this study were modified PNOSS (Psychiatric Nurse Occupational Stress Scale) which was developed by Bai and modified the Morale scale which was developed by Oh. The confidence varification of these instruments were computed and Cronbach $\alpha$=.9255, .9260. Data were analyzed by t -test, ANOVA on 5% significant level and Pearson correlation coefficient. The results of the study are as follows : 1. The average work stress scores of subjects were 2.83. Among the work stress factors : the conflict with nurse was identified as the most stress factor. There was significant relationship between the degree of work stress and the variables of psychiatric Nursing Assistants such as the marital status, educational level, religion, job satisfaction, working place, predicted period of work. 2. Average total morale scores for the subjects was 3.08. There was a significant relationship between the degree of morale and variables of psychiatric nursing assistants such as working place, certification as a nursing assistant, job satisfaction, opportunity for practical education and predicted period of work. 3. There was a significant relationship between the degree of morale and work stress factors such as administration problem, work overload.

• Journal of the Ergonomics Society of Korea
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• v.34 no.4
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• pp.353-362
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• 2015

Objective: This study aims to analyze occupational accidents of moving helpers by work place type which means the type of residence where moving operation is done. Background: Most efforts have been focused on the industry base comprising various occupational spectrum and provided industry general preventative policies. But occupation specific policies are required for the workers involved and will reduce the occurrences of occupational accidents for the workers subject to similar working environment and process. Method: This study analyzes 208 non-motor vehicle collision related occupational accidents of moving helpers working for used household and office goods moving industry occurring from 2010 to 2012. Accident Type, agencies, event or exposure, parts of body affected are characterized by work places according to the work environment. Results: Accidents characteristics showed the difference between high-rise type and low-rise type on the size of enterprise, age, gender and work experience of the injured. Also the accident type, source of accident and parts of body affected are different between the two work place types. Finally, Accidents occurred on the specific operational processes of moving service also showed different characteristic between the two types. Conclusion and Application: The findings of accident characteristics according to workplace types and operational process of moving service can be used as baseline data for establishing systemized preventative policies for occupational accidents of moving helpers.

• The Korean Journal of Emergency Medical Services
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• v.8 no.1
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• pp.5-17
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• 2004

A descriptive-correlational study was conducted to examine the job satisfaction and organizational commitment of emergency medical technicians(EMTs) and to identify the relationship between job satisfaction and organizational commitment. Subjects of this study werw 85 EMTs who passed first grade qualification examination and work at hospitals or fire stations in Gwangju and Chonnam province. Data were collected using a structured questionnaire by a postal survey from Sept. 10 to Oct. 20, 2003. For data analysis, descriptive statistics, ANOVA. t-test, and Pearson Correlation were used. The mean score of subjects' job satisfaction was 3.04 and the mean score of organizational commitment was 3.33. There was no significant differences on job satisfaction and organizational commitment by general characteristics of subjects. Job satisfaction was significantly differed by their careers as a EMT, current working place, and types of duty. Organizational commitment was significantly differed by their current working place, types of duty, and level of mean allowance. There was statistically significant positive correlation between job satisfaction and organizational commitment. These findings provide implications to improve job satisfaction and organizational commitment for EMTs. Further studies are recommended.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.11a
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• pp.145-146
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• 2022

The demand for a construction method capable of securing a safety environment and improving quality is increasing. There is a high risk of falling when working at a high place in an environment where it is difficult to secure visibility, such as an underground space, and there is a risk of falling if cement liquid waterproof materials are transferred to the top of the scaffold by manpower. In addition, when working on a high place in a poor environment, the quality uniformity of the upper part of the wall is deteriorated. In addition, as waterproof technicians gradually age and decrease, it is difficult to secure them, so it is urgent to prepare countermeasures against the shortage of waterproof technicians. Therefore, the purpose of this study is to develop cement liquid waterproof spouting construction equipment that can secure uniform quality of construction areas to prevent accidents and ensure safety of workers, improve work efficiency and quality due to improvement of work environment. The adhesion performance of the cement liquid waterproof material could be improved by about 20% in accordance with the use of the equipment.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.27 no.5
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• pp.358-363
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• 2015

As a preparation process for successful establishment of demonstration offshore wind farm, analyses have been made for working time at the construction site where working time is defined as the time available for marine operation to take place under given weather conditions. Data used are hourly wave and wind data from met mast, HeMOSU-1, and 3 hour numerical model data from Korea Meteorological Administration (KMA). Seasonal results show the minimum working time during winter and moderate during autumn and spring. The most working time was seen during summer on average. Monthly analyses show the most working time in May, June, and August which was higher than the working time in July and September. Working time reaches at steady state and no significant change was seen above wave height of 1.5 m and wind speed of 8 m/s.

• Journal of Animal Environmental Science
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• v.8 no.3
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• pp.199-208
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• 2002

This paper introduces the method to make management network about milking cow farm tasks. The object of this research was to design of biological measuring system and managing network system in a livestock farm. This auto-management system provides informations about individual cows' temperature, conductivity of milk and weight for efficient management of feeding, and milking works by a micro-processor and RS -485 type serial COM. ports. And measured bio-data which are basic informations for remote raising management are saved to user PC by serial communication between the PLC and user PC. Milking cow farm is divided into three working place to each measurement work and feed. The first working place is milking station which has two thermometers, a conduct meter and a scale set. The second working place is feeding station, and the third place is cattle cage. These are combined by network system and the PLC which is used to drive network and sub-modules. Sub-modules have a micro-process to control the sensor and to interface with network. The PLC which drive network and control sequence has two serial communication port to be linked with user PC for sending the measured data and for receiving data. Above all, in this study tells the sequence operating method by the driving scenario of breeding milk cow for livestock auto-management using the PLC and network system.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.1
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• pp.254-263
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• 2012

This study was performed to investigate a hospital nurses' knowledge and attitude about cancer pain management and to make use of base material for education. The research design was descriptive survey study, and the data were collected from 303 nurses who were working at a university hospital. A instrument study was the inventory consisting 107 questionnaires for cancer pain management. The data were analysed by SPSS WIN 18.0. The study showed that the percentage of correct answers for general knowledge about pain was 79.6%, for knowledge about cancer pain was 82.2%, for knowledge about analgesics use was 55.6%, for attitude about pain management was 65.2%, and the percentage of correct answers for each item was 70.7%. The knowledge about analgesics use was significant difference in age, education level, position, years of nursing practice, present place of working, years of present working place, pain education program experience, the attitude about pain management was significant difference in gender, education level and present place of working. Consequently it needs the persistent educational programs development and the clinical application to improve of nurses` knowledge and attitude about cancer pain management.