• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.12
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• pp.6218-6226
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• 2013

The aim of this study was to determine the basis for smooth conduction of business for journalists by identifying the journalists demographic characteristics and the relevance of the physical symptoms and emotional exhaustion. The surveys were carried out from 2013 May 1 to August 31 and the subjects of the surveys were 124 journalists working in the editorial part of 11daily newspaper companies located in Seoul. For data analysis, frequency analysis, factor analysis, and a T-test were performed using the SPSS Win 18.0 program. A p value 0.05 was considered significant. The study showed that there were significant differences in the physical symptoms depending on sex, age, marital status, and rank. In addition, emotional exhaustion was affected by gender, age and Sunday duty cycle etc. The results of this study will provide basic data for preparing a physical and mental health promotion program for journalists by the demographic characteristics.

• Journal of the Korea Convergence Society
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• v.6 no.6
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• pp.119-129
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• 2015

The purpose of this study is to show how much career management systems of hospital affect the psychological states of hospital employees. The research was dealing the issues about hospital's career management systems which affect exhaustion, cynicism, and job engagement. We found that job rotation has a negative significant effect on exhaustion. In addition, job rotation also negatively influence cynicism. On the other hand, career education and training has a positive effect on job engagement. Career management support systems and evaluation of career development, however, do not have significant effect on dependent variables. Thus, effective career management systems for hospital organizations are job rotation and career education and training programs. Finally, based on the analyzed results, this study has provide useful information for hospital management to establish efficient and productive human resources-management systems in order to increase in job engagement and reduce exhaustion and cynicism of employees as well.

• Journal of computational fluids engineering
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• v.18 no.3
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• pp.72-78
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• 2013

The turbulent flow behavior of air supply and exhaustion in the Shin-gum-ho subway station is analyzed for ordinary and emergency state. The depth of Shin-gum-ho station is 43.6m which consists of the island-type platform(8th floor in underground) and a two-story lobby (first & second floor in underground). An emergency stairway connects between the platform and the lobby. Ventilation operation mode for ordinary state is set up as a combination of air supply and exhaustion in the lobby and platform, while for emergency state it is set up as a full air supply in the lobby and a full exhaustion in the platform. The entire station is covered for simulation. The ventilation diffusers are modeled as 95 square shapes of $0.6m{\times}0.6m$ in the lobby and as 222 square shapes of $0.6m{\times}0.6m$ and 4 rectangular shapes of $1.2m{\times}0.8m$ in the platform. The total of 7.5million grids are generated and whole domain is divided to 22 blocks for MPI efficiency of calculation. Large eddy simulation(LES) is applied to solve the momentum equation and Smagorinsky model($C_s$=0.2) is used as SGS(subgrid scale) model. The time-averaged velocity fields are compared to experimental data and show a good agreement with it.

• Journal of Internet of Things and Convergence
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• v.5 no.1
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• pp.29-34
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• 2019

A bag filter collector is a kind of air purifier that organizes several or dozens of filters to purify fine dust and release clean air into the atmosphere. If the bag filter length is less than 5m, the dust and fume attached to the bag filter could be effectively removed by passing the compressed air generated by the diaphragm valve through the venturi. Injectors that are more efficient and economical are urgently needed to achieve satisfactory results for long-bag exhaustion of more than 7 meters. In the case of existing domestic and foreign injectors, a number of blow tubes were dismantled during maintenance, and the injector and blow tube were combined to pose a number of problems, including inconvenience of work due to weight increase. In this study, injector flow for the development of the best use of interpretation of the coanda effect and the fourth round of industrial technology Intelligent automation of exhaustion, have been engineered energy than standard equipment. lowering costs and filter life to radically improve the commercial studies.

• Korean journal of food and cookery science
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• v.31 no.3
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• pp.370-377
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• 2015

The purpose of this study was to obtain data to improve customer orientation by managing emotional labor in foodservice employees. This study investigated the correlation between emotional labor (surface acting, deep acting), job burnout (emotional exhaustion, cynicism), and job engagement (vigor, dedication, absorption) in high school foodservice employees, and how they affect customer orientation. Our survey was administered to 330 school foodservice employees in the Busan area from June 2 to June 27, 2015. A total of 321 questionnaires were used for final analysis. The mean values for deep acting (p<0.01), cynicism (p<0.01), and dedication (p<0.05) significantly according to the position of the emproyees. The mean customer orientation significantly according to employment status (p<0.01) and meal service time (p<0.01). There was positive correlation (p<0.01) between surface acting, and emotional exhaustion cynicism, but negative correlation (p<0.01) between surface acting and vigor, dedication, absorption, and customer orientation. Deep acting had negative correlation (p<0.01) with emotional exhaustion and cynicism, positive correlation (p<0.05) with vigor, dedication, absorption, and customer orientation. Surface acting had negative influences on emotional exhaustion and cynicism, cynicism had negative influences on vigor, dedication, absorption, and customer orientation. Deep acting had positive influences on absorption and customer orientation, absorption had positive influences on customer orientation. Thus, nutrition teacher(dietitian) should educate foodservice employees the positive effects of deep acting to change their surface acting to deep acting, while actively managing internal customers.

• Journal of the Korean Data and Information Science Society
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• v.27 no.1
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• pp.143-154
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• 2016

This study was designed to construct and test structural equation modeling on nurses' emotional labor including antecedents and consequences based on the model of Morris and Feldman (1997). A total of 247 nurses working at secondary and tertiary hospitals in three provinces responded the questionnaires. Emotional labor was measured by frequency of emotional labor, attentiveness of required display rules and emotional dissonance. Routineness of job, job autotomy and organizational support were measured as antecedents; and emotional exhaustion, job satisfaction and organizational commitment were included as the consequences of nurses' emotional labor. Data were analyzed by SPSS 21.0 and AMOS 21.0. The model fitness indices for the hypothetical model showed NFI=.94, CFI=.97, and RMSEA=.07. Job autonomy and perceived organizational support had significant effects on emotional labor. The emotional labor influenced positively emotional exhaustion and negatively job satisfaction and organizational commitment. Nurses' emotional labor mediates between job characteristics and nurses' psychologic results indicating more autonomy and support can reduce nurses' emotional labor and then increase their satisfaction and organizational commitment, and decrease emotional exhaustion.

• Journal of Sensor Science and Technology
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• v.24 no.2
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• pp.113-118
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• 2015

Intravenous (IV) infusion set is one of the most common treatment methods applied to hospitalized patients. However, it is necessary to check the injection of IV solution in order to prevent patients from any possible medical injuries. In this paper, using the optical sensors to detect exhaustion of IV solution was proposed. The optical sensor is coplanar structure composed of LED and photodiode which is installed according to focal distance of the lens. These two elements detect exhaustion of IV solution at the desired point conveniently. Through the results of experiments using various wavelength of LED (R.G.B), the blue LED was selected to the optimum light source. The suggested optical sensor can detect exhaustion of IV solution by the differences in the amount of light which is caused by properties such as total reflection, refractive index and scattering. From the implementation, the detector is applicable to both containers of IV solution, glass bottle and plastic pack. And also the result shows apparent differences according to existence of IV solution even if the IV solution color and illumination were changed.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.8 no.2
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• pp.169-177
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• 2015

In this study, we investigate the effect on self-esteem in accordance with job satisfaction and psychological exhaustion of the kindergarten teachers. The data were collected through a survey aimed at 168 kindergarten teachers located in ${\bigcirc}$ gu, ulsan city from September 10, 2014 to October 17. Analysis methodologies using the program SPSSWIN 21.0 and Amos 21.0 were carried out. empirical analysis is verified at the significance level of 5% by t-test, one-way analysis of variance, correlation analysis, confirmatory factor analysis, structural equation. Results are as follows. First, the relationship between job satisfaction and self-esteem can be seen that there is no correlation. Second, the relationship between self-esteem and psychological exhaustion hat there is a correlation with each other. This study found out a direction to maximize the qualitative effects of Childhood Education. Also this study was considered to be the basic data to improve the working environment of kindergarten teachers and to provide a educational direction of early childhood teacher.

• Journal of Convergence for Information Technology
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• v.8 no.6
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• pp.361-366
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• 2018

In this study, 200 social workers in Seoul and Gyeonggi area were surveyed using convenience extraction method. Data were analyzed by frequency, reliability, correlation, and regression analysis using IBM SPSS Statistics 20, and Sobel test was performed. The purpose of this study was to investigate the effects of empowerment on the relationship between exhaustion and organizational effectiveness of social workers and to provide basic data for improving organizational effectiveness. The results of the study are as follows. Empowerment was found to be mediated in the relationship between exhaustion and job satisfaction, which is a sub - area of organizational effectiveness. Empowerment was found to be mediated in the relationship between exhaustion and turnover intention, which is a sub - domain of organizational effectiveness. Therefore, it is necessary to have a resting place that gives a sense of security to the exhausted social worker rather than granting authority for the social welfare organization.

• Korean Journal of Exercise Nutrition
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• v.25 no.1
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• pp.7-15
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• 2021

[Purpose] Sodium bicarbonate shows ergogenic potential in physical exercise and sports activities, although there is no strong evidence which performance markers show the greatest benefit from this supplement. This study evaluated the effects of sodium bicarbonate supplementation on time trial performance and time to exhaustion in athletes and sports practitioners. [Methods] A systematic review was conducted using three databases, including 17 clinical trials. Among these clinical trials, 11 were considered eligible for the meta-analysis according to the criteria for the assessment of methodological quality using the PEDro Scale. Time to exhaustion was assessed in six studies, while time trial performance was evaluated in five studies. [Results] A significant beneficial effect of supplementation on time to exhaustion was found in a random effects model (1.48; 95% confidence interval [CI], 0.49 to 2.48). There was no significant effect of supplementation on time trial performance in a fixed effects model (slope = -0.75; 95% CI, -2.04 to 0.55) relative to a placebo group. [Conclusion] Sodium bicarbonate has the potential to improve sports performance in general, especially in terms of time to exhaustion.