• Journal of Veterinary Clinics
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• v.32 no.3
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• pp.272-274
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• 2015

A black kite (Milvus migrans) was referred to the Gyeongnam Wild Animal Rescue Center, Jinju, Korea, with a clinical history of lethargy. On physical examination, three hard, variable sized, round shaped masses were found in the carpal and digit region of the right wing. On plain radiographs, three various sized, round to oval shaped, bony opacity masses with smooth margin were identified on the major digit, alular digit, carpometacarpus. The bird was euthanized due to poor prognosis. A full necropsy was performed, and the histopathologic findings in the bird were consistent with multiple exostoses.

• Applied Chemistry for Engineering
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• v.20 no.5
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• pp.547-552
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• 2009

When fiber reinforced plastics (FRP) products are manufactured, dust and odor materials are inevitably generated in a workplace. To improve the bad condition of the workshop, we developed the Hybrid Bag Filter attached activated carbon fiber (ACF) and installed the system at two companies producing FRP goods. In order to raise the efficiency of dust collection, we set the ducts both on the ceiling and at the bottom of the wall and according to the circumstances of the workshop's space, moving dust collector also adopted as a different type of flexible duct. Pulse Jet Type Bag Filter is also equipped to operate the system more effectively, for the improved fine environment because of high dust removal efficiency. Finally, we investigated the removal tendency of the dust and odor when operating the System of Hybrid Bag Filter.

• Journal of the Korean Society of Physical Medicine
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• v.6 no.2
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• pp.177-187
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• 2011

Purpose: The purpose of this study was to identify the effect of emotional suppression and burnout on the job satisfaction. Methods: We distributed questionnaires to 216 physical therapists and collected completed questionnaires from 193. We analyzed the data using frequency analysis, independent t-tests, analysis of variance. and multiple regression. Results: The results were as follows; 1) General characteristics of participants were 62.7% male, 43.5% less 30 years old, 31.6% working over 10 years in the hospital. 27.1% participants treated 31 patients or more a day, most(85.5%) participants were regular staff members. 2) Emotional Suppression, exhaustion and diminished self-efficacy were significantly correlated with job satisfaction. According to result of regression analysis on the job satisfaction, the job satisfaction negatively related with the diminished self-efficacy, exhaustion but positively related with the emotional supression. Their power of explanation regarding job satisfaction was 31.2%. Conclusion: These results showed that diminished self-efficacy was importantly influenced on the job satisfaction. So this result of the study means that we must improve the stratege for keeping efficient management.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.8
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• pp.4981-4986
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• 2014

The aim of this study was to identify how job stress, burnout and nursing organizational culture affect the turnover intention of nurses. The participants were 198 nurses from two general hospitals. The data was analyzed using descriptive statistics, Pearson correlation analysis, and stepwise multiple regression using the SPSS/PC 18.0 program. The turnover intention had a positive correlation with job stress (r=.59, p<.001), burnout (r=.64, p<.001), and a negative correlation with the nursing organizational culture (r= -34, p<.001). The predictors of the turnover intention were job demand, insufficient job control, interpersonal conflict, emotional exhaustion, and depersonalization. The results of the study can be used to develop a program for reducing nurses' turnover intention.

• Journal of Korean Academy of Nursing Administration
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• v.12 no.2
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• pp.213-224
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• 2006

Purpose: This study examined Korean nurses' job attitude (i.e., satisfaction and burnout) regarding the extent to which organization's emotion display rule influences on job attitudes through emotion-related variables (i.e., negative emotion suppress behavior and inauthenticity), thereby examining mediation effects of negative emotion suppress behavior and inauthenticity. Method: Using a survey to nurses working in various general hospitals in Korea, structural equation modeling was adopted. Result: Emotion display rule affected outcome variables but these effects were mostly observed via the two mediators, negative emotion suppress and inauthenticity, which largely supports the research model. Conclusion: Individuals who perceived stronger emotional display rule suppressed more their negative emotion, and also perceived more inauthenticity. In turn, negative emotion suppress behavior only affected job burnout positively. Inauthenticity showed a negative effect on job satisfaction while it had a positive effect on burnout. The study provided directions for future research and practical implications to help nurses' effective job performance.

• Resources Recycling
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• v.8 no.5
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• pp.19-27
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• 1999

The desilica~ilalioc~h~ar .~ctcrisocs or conveutcu dust for molten pg iron has bee11 sludled for the pulposc of converter dust reuse. Desiloconizalir~ne ff~c~encwya s observed 10 be increased with increasing feeding rate of dust, and there was 110 cffccl to Lhe des~lica~~iratiearlfli cio~cyfo r the addtioolI CaO Ln dust. In ~noslc ases, the dcs~l~conizaliornea ction was ucconlpl~shed wrthin 10 minutes regadless of thc dust cornpasilim In addition lo the desil~comzat~oenfl ect, the rzmow~lc hal-i~cteristo~fs M u, P. C, and S from mallen iron by convcrtcr dust also have been in\~esligataled. CuO m thc converlel. dust was observed to ~educc the demanganizi~tion eflect and slag laming phenomenon and make thc dephosphoriralion pn,ce*s easler.

• Journal of Environmental Science International
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• v.32 no.11
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• pp.801-809
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• 2023

The purpose of this study is to predict the reflection distance following to the pulsing pressure, total air supplying, filter bag size using numercial analysis techniques and use it as an efficient operation condition and economic data for off-line type pulse air jet bag filter. In this research, filtration area 6 m² condition, calculate filter resistance coefficient for simulation through the main experiments using coke dust. Ansys fluent V19.0 apply to CFD simulation, and analysis pulsing characteristics about pulsing pressure, filtration velocity and nozzle diameter. The maximum reflecting distance of off-line type pulse air jet bag filter is 1,000 mm regardless of total air supplying at over the 42 L/m² conditions, that indicates off-line type can extend filter bag length 1,000 mm than on-line type. In order to effective primary and secondary pulsing of off-line type pulse air jet bag filter, over the 5 bar of pulsing pressure and over the 42 L/m² of total air supplying are needed.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.18 no.3
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• pp.189-203
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• 2008

Cylindrical bag filter system with pulse jet cleaning has been the most common device to control particle laden exhaust gas from the various industrial processes. But, it has many shortcomings due to particle reattachment and frequent bag rupture. In recent years, rectangular type bag filter system has been developed to overcome the problems associated with the cylindrical system. However, not many studies about the rectangular system were not done, compared to the cylindrical system. In this study, the optimum pulse jet cleaning conditions were thus tested by the series of experiments. The factors tested in this study are pulse distance, pulse pressure, pulse duration, the number of holes for pulsing and bag materials. A single bag ($1,500mmL{\times}50mmW{\times}300mmH$) system and a multi-bags (3 bags in a row) were tested separately. The highest removal efficiency with a single bag system was found at the conditions with pulse distance of 10cm, pulse pressure of $3kg/cm^2$, pulse duration of 0.3s, pulse jet number of 6 and Polyester bag. With the multi-bags system, the best cleaning conditions were found at the bag interval of 20cm with the simultaneous pulsing and the bag interval of 15cm with the serial pulsing.

• Journal of Families and Better Life
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• v.24 no.1 s.79
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• pp.55-69
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• 2006

This study has been performed to investigate group differences and determining factors of burnout of the workers in elderly living facilities. In this study, 131 male and female workers composed of social workers, health practitioners, and other management workers were selected among 23 retirement and nursing facilities in Korea between 2003 and 2005. They were asked about their socioeconomic background, working environment, and their perceptions on burnout in the working places. As for main dimensions of the burnout, there were three elements such as emotional weariness, diminishing personal accomplishment, and depersonalized behaviors. Particularly in this study, the depersonalized behaviors were defined as aggressive or rude verbal and behavioral outbursts from anger. As a result of this study, the following results were found: Most workers have medium level of perception on their commitment and burnout, but there. are some risk factors; newly married young workers were less satisfied or fairly rewarded with their job and as a result, they have significantly higher level of emotional weariness but lower feeling of personal accomplishments. In addition, they occasionality practiced aggressive or rude behaviors such as yelling, threatening, and physically harassing As for the influence of determining variables, long-time workers of long established facilities were more satisfied and less burnout. In addition, there are some impacts of job category; health practitioners were more burnout than social workers. In this study, suggestions are made as follows: first, guiding and settlement programs should be developed for the newly started young married workers, particularly at early stage of their career. Second, future aspects of facility visions should be guided for the workers, so that they are relieved from stressful routines without any future plan. Third, medical workers such as physical therapists and nurses should be further monitored for main reasons of increasing their stress.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.18 no.2
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• pp.149-160
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• 2008

Bag-filter system has been widely used in industrial field to remove the particulate matters from the exhaust gas. The cylindrical type of bag-filter has been generally used. But it has many shortcomings. The reattachment of separated particles on the surface of bags could result in high pressure drop of bag-filter system and subsequent decrease of air flow rate since the cylindrical type bag-filter system should have the upward flow pattern. In addition, the supply of very high pressure pulse air jet to remove particulate matters on the surface of filter could result in a frequent rupture of bags. To overcome these shortcomings of the cylindrical type, the rectangular type was developed in the developed countries and imported to Korea. But, there was not many design data available to understand the mechanisms. Thus, the fundamental experiments were conducted in this study to get some ideas about the pulse jet cleaning of rectangular type bag filter system. The experimental factors are as follows; pulse distance, pulse duration, pulse interval, pulse pressure and pulse nozzle type. Experiments followed the factorial design method. With the shorter pulse distance, the distribution of pressure drops was relatively not uniform while the particulate removal efficiency was higher. With the longer duration of pulsing and the more number of pulse nozzle, the removal efficiency was higher and the pressure drop distribution was more uniform.