• Proceedings of the KAIS Fall Conference
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• 2011.12a
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• pp.262-265
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• 2011

본 연구는 탈진 기류 분사 시스템의 최적화 설계에 관한 기초 연구의 일환으로 전산유체역학(CFD)을 이용하여 일반 블로우 튜브와 단순 벤츄리 조합의 충격 기류(Pulse air jet) 방식의 탈진 장치에 대한 탈진 성능과 벤츄리 입구에 기류 유도용 구조물을 설치한 경우의 탈진 성능을 비교하였다. 각 Case별로 벤츄리 내부로 유입되는 탈진 공기량을 예측한 결과, case 2의 벤츄리 형상 개조시 case 1 보다 벤츄리로 유입되는 탈진 공기량이 약 20% 증폭되는 것으로 나타났다. 또한 필터백 표면에서의 탈진 기류 전달 분포를 예측한 결과, 모든 case가 필터백의 국한된 영역으로 탈진 기류가 집중됨을 알 수 있었다. 또한, case 2의 경우가 case 1보다 오히려 탈진 기류의 전달 수준이 불량함을 알 수 있다. 이는 case 2의 경우 벤츄리 입구에 기류 유도용 구조물을 설치한 것이 탈진 공기량을 증폭시키는데에는 도움이 되나, 오히려 벤츄리 내부로 유입된 탈진 기류의 직진성을 보완하여 필터백 내부에서 탈진 기류의 확장을 방해하기 때문인 것으로 판단된다.

• Proceedings of the Korea Contents Association Conference
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• 2010.05a
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• pp.221-223
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• 2010

이 연구에서는 심리적 탈진이 직무만족 및 이직의도에 미치는 영향을 실증적으로 살펴보았다. 그 결과, 회귀분석에서는 심리적 탈진과 직무만족 및 의직의도 사이에 유의미한 관계가 나타났으며, 상관관계 분석에서는 심리적 탈진과 직무만족은 부적인 상관관계가 나타났고, 심리적 탈진과 이직의도는 정적인 상관관계가 나타났다.

• 한국신재생에너지학회:학술대회논문집
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• 2008.10a
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• pp.246-249
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• 2008

IGCC (석탄가스화 복합발전) 시스템 공정 중 가스화기에서 발생되는 합성가스 내에는 높은 농도의 분진들이 함유되어 있기 때문에 하부 공정들을 보호하기 위해서는 가스화기 후단에 집진장치가 필히 설치되어야 한다. 집진장치의 설계 제작 운전에 있어서 점착성 분진층 부착,분진 브리징, 필터 파손 현상 등과 같은 다양한 문제점들로 인하여 고온의 합성가스를 처리하는 데는 아직 기술적 한계들이 산재해 있는 상황이다. 이와 같은 문제점들은 필터에 부착된 분진층의 탈진성능을 향상시키거나, 필터의 열피로를 줄일 수 있도록 필터 재생을 위한 탈진의 횟수를 줄이는 방법을 통하여 해결될 수 있다. 본 연구에서는 파일롯 규모의 IGCC용 세라믹캔들필터 집진장치에서의 가스 유입 및 탈진 조건에 따른 집진장치의 차압 특성 변화를 수치해석과 실험을 통하여 분석함으로써 탈진성능을 향상시킬 수 있는 조건과 탈진 횟수를 최소화시킬 수 있는 방안을 도출하고자 하였다.

• Journal of the Korea Convergence Society
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• v.8 no.8
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• pp.105-114
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• 2017

The purpose of this study was to identify the convergent interaction effects of work environment on the relation between patients related stress and nurse's burnout. Data were collected with a convenience sample of 168 nurses at hospital in Seoul, Korea from 1 July to 15 July 2014. The structured questionnaires measured patients related stress, work environment, and burnout. In the results, patients related stress enhanced burnout. The analysis of moderating effect of work environments to relation between patients related stress to burnout showed that high control, rewards, fairness, and value and low overload reduced the influence of patients related stress to burnout. And community had main effect to burnout. Based on these results, it is necessary to develop nurse's work environment improvement strategies for relieving burnout.

• Journal of Digital Convergence
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• v.13 no.2
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• pp.61-71
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• 2015

This study is to examine the relationships between emotional labor, job stress, and job burnout of staff accountants. The results of the analysis are as follows. First, frequency of emotional display has a negative impact on job stress, but emotional dissonance is not associated with job stress statistically. And all types of emotional labor(emotional display, emotional variety, emotional dissonance) have no significant effects on job burnout. Second, all types of emotional labor have no significant impacts on job burnout. Third, full mediation by job stress is proved in the relations between frequency of emotional display and job burnout and between emotional variety and job burnout. But emotional labor doesn't directly impact on job burnout but it influences job burnout via job stress indirectly. These results provide a meaningful framework and theoretical basis for future research on emotional labor, job stress, and job burnout.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.2
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• pp.1571-1578
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• 2015

The cleaning characteristics of pulse air jet type cleaning system which is widely applied in the industries were identified by utilizing the computational fluid dynamics (CFD) and the cleaning performance in modified shape of dedusting unit was compared in this study. The review on each shape of cleaning part showed that the case of installing the nozzle on the blow tube (Case-3) and the case of installing the double intaking tube to the venturi (Case-4 and Case-5) were more excellent than the structure (Case-1). Also, the optimal venturi shape was designed and examined its applicability to the site in a pilot scale plant. A combined system of a blow tube and a venturi proposed by this study turned out to be very effective for concentrating an cleaning air compared to existing systems, such as using only blow tube and combines the blow tube and venturi. In addition, as a result of installing and testing a venturi proposed by this study, the cleaning frequency and cleaning time were much improved compared to a case of using a commercial venturi that is under use at the industrial sites.

• The Journal of the Korea Contents Association
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• v.10 no.7
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• pp.337-343
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• 2010

Policing is regarded as a stressful occupation. Police Officers have been reported to have increased rates of cardiovascular and gastrointestinal disorders, divorce rates twice the average, and suicide rates two to six times the average. The aim of this study is to identify the effect of psychological burnout on job satisfaction and turnover intention among police officers. In the regression analysis, psychological burnout have significant relations with job satisfaction and turnover intention. In the correlation analysis, psychological burnout have a negative relation with job satisfaction and a positive relation with turnover intention. And job satisfaction have a negative relation with turnover intention.

• The Journal of the Korea Contents Association
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• v.18 no.5
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• pp.149-155
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• 2018

The purposes of this paper are to describe the burnout, absence and disciplinary action among police officers in Korea and to identify the correlation among these three variables. And aim of this study is to provide basic information for the health improvement of police officers in Korea. Studies have shown significant static correlation between the practice of absence from work and the absence from work that is false, but the coefficient of correlation is very low. In addition, there was no significant correlation between burnout and disciplinary action. Regression analysis showed significant relationships with burnout and absence intention, practice of absence and types of disciplinary action, but they were very poorly explained. So you can see that the burnout of police officers generally has a small effect on absence, but not on the disciplinary action. Future studies should include supplementary studies of these associations.

• Korea Trade Review
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• v.42 no.5
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• pp.71-91
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• 2017

This purpose of this study is to examine how emotional intelligence has a moderating effect on the relationship between emotional labor and job burnout. To test the hypotheses, moderation analysis, mediation analysis and moderated mediation analysis were performed. Of the 1,500 self-report questionnaires distributed to franchise employees, 1,412 usable responses and utilized in the final analyses. The resoults show that emotional labor significantly affected job burnout, and job burnout completely mediated the effect of emotional labor on turnover intention. And emotional intelligence moderated the relationship between emotional labor and job burnout, suggesting that the emotional dissonance-job burnout relationship was stronger in the low emotional intelligence group than in the high emotional intelligence group. The results of this study provide some implications for Korean companies entering the Chinese franchise field. First, the mediating effects of "emotional labor → job burnout → turnover intention" and the effect of emotional labor on job burnout were mitigated by self-efficacy in Chinese franchise workers. And the self-efficacy of the employees was an important factor. The implication of this study is that self-efficacy, which is a controlling variable affecting emotional labor, job burnout, and turnover intention, is important, so Korean companies that enter the Chinese franchise employ employees with high self-efficacy and to develop and implement an employee education program that can enhance self-efficacy.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.8
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• pp.3792-3799
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• 2012

The dedusting characteristics of pulse air jet type dedusting system which is widely applied in the industries were identified by utilizing the computational fluid dynamics (CFD) and the dedusting performance in modified shape of dedusting unit was compared in this study. The review on the dedusting air volume, air stream distribution and inflow velocity distribution on each shape of dedusting part showed that the case of installing the nozzle on the blow tube (Case-3) and the case of installing the double intaking tube to the venturi (Case-4 and Case-5) were more excellent than the structure (Case-1) which is widely applied in the field in its amplification effect on the air volume and extension of stream width. The specification of venturi was decided to apply the selected Case-5 for the option of the commercial back filter. It is considered that the dedusting air volume will be maintained in maximum in the case of 50 mm and 90 mm for the diameter of internal and external intaking pipe respectively.