• Journal of Digital Contents Society
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• v.19 no.9
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• pp.1707-1715
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• 2018

This study was conducted using structured questionnaire to 103 dental hygienists who agreed to research among dental hygienists working at Ulsan-based dental clinics in an attempt to analyze the impact of dental roles and social support on emotional labor. Statements of collected data were performed on t-test and ons-way ANOVA, correlation and multiple regression using the SPSS Statistics ver 18.0 for windows program. The study found that the higher role conflicts and greater role ambiguity in relation to direct trade and emotional labor, the higher the intensity of emotional labor, and the more social support, the lower the intensity of emotional labor. The emotional labor of dental hygienists can be solved at a personal level by trying to improve their relationship with members at a dentist's office and by making clear and more professional work segmentation according to their working characteristics. This will help develop a plan to manage the emotional labor of dental hygienists.

• Journal of the Society of Naval Architects of Korea
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• v.34 no.4
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• pp.139-147
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• 1997

Most of the existing applications developed undter the DOS environment exchange information with the exterior world through reading and writing files in ASCII format. A package program consisting of numerous modules has to exchange data not only between module program and the input/output files but also between module themselves, and hence information exchange via ASCII file is increasingly inefficient and less accurate as the number of modules increases. The present paper describes the design and the implementation of the interface between the module program and the database which stores all the information necessary for the execution of the application. The interface program is then applied to the existing Propeller Design and Analysis System to show that the interface functions smoothly. The development is performed on the personal computer operating under Windows 95 rather than the workstation under Unix operating system to prove that the design and analysis work can be carried out without limit in time and space.

• Journal of KIISE:Databases
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• v.33 no.4
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• pp.409-422
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• 2006

In general, there can be many reusable intermediate results due to the overlapped windows and periodic execution intervals among Multiple Continuous Queries (MCQ) on data streams. In this regard, we propose an efficient greedy algorithm for a global query plan construction, called GAGPC. GAGPC first decides an execution cycle and finds the maximal Set(s) of Related execution Points (SRP). Next, GAGPC constructs a global execution plan to make MCQ share common join-fragments with the highest benefit in each SRP. The algorithm suggests that the best plan of the same continuous queries may be different according to not only the existence of common expressions, but the size of overlapped windows related to them. It also reflects to reuse not only the whole but partial intermediate results unlike previous work. Finally, we show experimental results for the validation of GAGPC.

• Journal of the Korean Society of Safety
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• v.25 no.6
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• pp.203-209
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• 2010

A compact ANSI/EIA 709.1 protocol analyzer system suited for maintenance of LonWorks network for safety management of underground facilities was developed and tested. The hardware is based on the TMS320LF2406A embedded system, and the software was designed using Visual C++6.0 under Windows XP environment. Connected to the LonWorks network the developed protocol analyzer decodes the raw packets and pass them to the master PC through USB port. Then on the PC the packets are processed and analyzed in various aspects and the key features that are essential to the maintenance of LonWorks network installed at underground facilities are displayed in a user-friendly format. Performance of the developed protocol analyzer was evaluated through a series of experiments, by measuring the speed of packet analysis and the error rate. The protocol analyzer proved to work reliably even under the increased bandwidth. However, more comprehensive tests under various underground environmental conditions are desired.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.27 no.2A
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• pp.137-145
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• 2002

In the method of 3D modeling, stereo matching method which obtains three dimensional depth information from the two images is taken from the different view points. In general, it is very essential work for the 3D modeling from 2D stereo images to estimate the exact disparity through fading the conjugate pair of pixel from the left and right image. In this paper to solve the problems of the stereo image disparity estimation, we introduce a novel approach method to improve the exactness and efficiency of the disparity. In the first place, we perform a wavelet transformation of the stereo images and set the reference points in the image by the feature-based matching method. This reference points have very high probability over 95 %. In the base of these reference points we can decide the size of the variable block searching windows for estimating dense disparity of area based method and perform the ordering constraint to prevent mismatching. By doing this, we could estimate the disparity in a short time and solve the occlusion caused by applying the fried-sized windows and probable error caused by repeating patterns.

• Journal of Digital Convergence
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• v.17 no.11
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• pp.259-268
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• 2019

This study was done to examine interpersonal relations, professional self-concept and hope in single female nurses. A survey using a structured questionnaire was conducted with 219 nurses who work in one of six general hospitals in the large cities. The data were collected from August 17, 2012 to September 14, 2012. Collected data were analyzed using t-test, One way ANOVA, Pearson's Correlation Coefficient, Hierarchical Regression Analysis with using SPSS Windows 25.0. There was a significant difference in interpersonal relations, professional self-concept and hope according to participants' characteristics. Participants' interpersonal relations, professional self-concept and hope were all found to have statistically significant correlations (r=.26-.45, p<.001). Participants' general characteristics, interpersonal relations, and professional self-concept explained 26.4% of variance in hope levels. Findings from this study should be useful in the development of programs to promote participants' hope with interpersonal relations and professional self-concept.

• Smart Structures and Systems
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• v.29 no.5
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• pp.653-660
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• 2022

Gravel scattering that is generated during operation of high-speed railway vehicle is cause to damage of vehicle such as windows, axle protector and so on. Especially, those are frequently occurred in winter season when snow ice is generated easily. Above all, damage of vehicle windows has not only caused maintenance cost but also increased psychological anxiety of passengers. Various methods such as heating system using copper wire, heating jacket and heating air are applied to remove snow ice generated on the under-body of vehicle. However, the methods require much run-time and man power which can be low effectiveness of work. Therefore, this paper shows that large-area heating system was developed based on heating coat in order to fundamentally prevent snow ice damage on high-speed railway vehicle in the winter season. This system gives users high convenience because that can remotely control the heating system using IoT-based wireless communication. For evaluating the applicability to railroad sites, a field test on an actual high-speed railroad operation was conducted by applying these techniques to the brake cylinder of a high-speed railroad vehicle. From the results, it evaluated how input voltage and electric power per unit area of the heating specimen influences exothermic performance to draw the permit power condition for icing. In the future, if the system developed in the study is applied at the railroad site, it may be used as a technique for preventing all types of damages occurring due to snow ice in winter.

• Journal of The Korean Society of Integrative Medicine
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• v.8 no.1
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• pp.177-191
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• 2020

Purpose : This study aimed to evaluate the relationship between self-esteem and quality of life according to the job satisfaction occupational therapists, and to contribute to wards providing positive directions to improve the quality of work performed by the occupational therapists and their quality of life. Methods : A total of 118 occupational therapists working on site were surveyed during the study period, from April 8, 2019, to May 10, 2019. The collected data were expressed as frequency and percentage and were subjected to Pearson's correlation analysis and multiple regression analysis using SPSS (Windows ver. 20.0). Results : First, the occupational therapists' job satisfaction job satisfaction averaged 3.20 points, with the highest chance of promotion among the lower factors, followed by the conservative level, the work itself, and interpersonal relationships. Second, the analysis of job satisfaction according to the general characteristics of the subjects revealed statistically significant differences with respect to age, marital status, highest education level, service period, average pay, and average working hours of the occupational therapists. Third, the sub-category of job satisfaction and self-respect showed the most positive correlation with the person-in-charge, and the sub-category of job satisfaction and the quality of life showed the most positive correlation with interpersonal relationships. This shows that higher job satisfaction increases the self-esteem and quality of life. Fourth, the significant task satisfaction sub-factor predictor for the self-esteem of the occupational therapists was the job itself, and the significant job satisfaction sub-factor predictor for quality of life was interpersonal relationships. Conclusion : The results of this study showed that among the sub-categories of job satisfaction of the occupational therapists, work itself and interpersonal relationships had the greatest effect on the self-esteem and quality of life of the occupational therapists.

• Journal of Family Resource Management and Policy Review
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• v.20 no.4
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• pp.49-68
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• 2016

Fathers are increasingly expected to participate in parenting due to the higher participation of women in economic activities, the growing awareness of gender equality, and the greater emphasis on the role of fathers. The purpose of this study was to examine the effects of paid work time and jobs' family-friendly policies on parenting participation in dual-earner families. Questionnaires were distributed to 577 fathers of dual earner families through a child care center in the Gyeongsangbukdo Province, and the results were analyzed using SPSS 18.0 for Windows. The statistical methods employed included mean, standard deviation, the Pearson correlation analysis, and a multiple regression analysis. The main results are as follows. First, the fathers of dual-earner families showed an above average level of participation in parenting (3.26). By category, they were less involved (2.89) in household chores, and more active in daily guidance and leisure activities (3.48). Second, the most significant variable affecting fathers' parenting participation was having a regular office-closing time. Fathers who were younger, had a higher level of education, had a regular office-closing time, had more vacation leave, and whose companies implemented family-friendly policies were more likely to participate more actively in parenting. Third, the key factors influencing fathers' parenting participation by sub-category were found to be having a regular office-closing time and jobs with family-friendly policies. Fathers with a greater awareness of gender equality were more inclined to participate in household chores, while those who were younger and more educated actively participated in daily guidance and leisure activities.

• Journal of the Korea Fashion and Costume Design Association
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• v.17 no.2
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• pp.1-10
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• 2015

The purpose of the study was to analyze differences in importance of product selection criteria of retail buyers in Dongdaemum market according to price line of products, annual sales volume of the company, and work period as a retail buyer. The study defined a retail buyer as a buyer who buys apparel products in Dongdaemum market for their own stores. The questionnaire developed by the researchers was distributed to 200 retail buyers in Dongdaemun market. One hundred seventy two questionnaires were used in the final analysis. The data were analyzed by common factor analysis, ANOVA, and Tukey's test using SPSS 18.0/Windows. The results showed that product selection criteria were classified into 4 factors: fashion design, price, quality, and assortment. There were significant differences in importance of product selection criteria by retail buyers in Dongdaemum market according to price line of products and annual sales volume of the company, and work period as a retail buyer. The buyers of higher price products showed higher importance in all four factors of the product selection criteria. Also, the buyers of the company with lower annual sales volume considered price factors more important, but the buyers of the company with higher annual sales volume thought quality factor more important. Moreover, the buyer with work period of less than three years regarded price as a more important factor.