• The Journal of the Korea Contents Association
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• v.20 no.11
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• pp.546-558
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• 2020

The purpose of this study is to objectively analyze the influence of the communication style of adolescent counselors on the emotional stability and satisfaction of counseling adolescents. To this end, 180 adolescents under the age of 19 were collected for about two months from May to July, 2020, and analyzed according to the procedure. The analysis results of the research hypothesis 1 set in this study,'The counselor's communication style perceived by a youth client will affect the client's emotional stability' is as follows. First, the controlled and professional communication styles of adolescent counselors positively influence the tension and anxiety of adolescent clients. In addition, the counselor's controlled and professional communication style positively affects the anxiety and fear of adolescent clients. And counselors's cooperative communication style positively affects the client's satisfaction and serenity. Finally, the counselor's communication style does not affect the teen client's optimism. Research hypothesis 2 set up in this study The analysis result of'the counselor's communication style perceived by the youth client will affect the counselor's counseling satisfaction', and all sub-factors of cooperative, controlled, and professional style It was found to have a positive effect on counseling satisfaction.

• Journal of Digital Convergence
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• v.18 no.4
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• pp.137-148
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• 2020

While the diversity of consumer choices due to the increased information in the digital age is positive, there are also many problems with the information overload. There are even situations in which consumers can not make the best choices under the weight of information. The purpose of this study is to look at how information overload plays a role in influencing online consumer behavior. With factors related to characteristics of the shopping mall, the recognition of the mall, the quality of the mall, the composition of the shopping mall, and the purchase recommendation service were set to analyze how these variables change the behavior of online consumers when information overload appears. According to the analysis results, all of characteristic factors of shopping malls set up in this paper are analyzed to have a constant effect on the behavior of online consumers, and information overload also has a constant medium effect on the recognition of shopping malls, the quality and the structure of shopping malls, and the provision of purchase recommendation services. And characteristic factors of shopping malls are also showing positive effects on online consumer behavior in information overload situations.

• Korean Journal of Food Science and Technology
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• v.30 no.4
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• pp.832-841
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• 1998

In order to economically utilize flour brew with Bifidobacterium bifidum as a bread improver, the effect of flour brew on the rheological properties of dough, growth curve and acid production, and symbiosis with yeast were investigated. Growth of bifidobacteria was not increased more than initial seed volume but was consistent during 24 hours of incubation. pH was decreased and T.T.A was increased up to 12 hours of incubation. Symbiosis between bifidobacteria and yeast was little. Bifidobacteria produced more lactic acid than acetic acid in flour brew and the opposite in skim milk broth. This result was inferred from Lactobacillus sp. inherent in flour. On rheological properties of dough, farinograms of flour showed progressively decreasing baking absorption, mixing time and stability as the amount of flour brew increased. The validation of extensograms showed that R/E ratio linearly increased with increment of flour brew, and nearly doubled in all treatments comparing to that of control, which suggest the reduction of actual fermentation time. On visco/amylograms, malt index increased with addition of flour brew, accordingly showing the decrease in viscosity. Break down and set back value decreased with increment of flour brew, suggesting that staling rate of bread can be delayed.

• Journal of Korean Home Economics Education Association
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• v.32 no.4
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• pp.103-124
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• 2020

The purpose of this study was to develop and implement a home economics convergence education program applying problem-based learning method focusing on the middle school food and nutrition life unit, and verify the effect of this class on the problem-solving ability of students. For this, the study set up the theme of 'sustainable life' by examining the relationship with other subjects, and set the key question as 'what is the relationship with the environment of food resources, the influence of individual level, and the solution method?' was postulated. And developed the problem and the total of 8 classes. As a result of conducting the convergence education program with home economics applying problem-based learning method, the pre-test and post-test scores were 3,54 and 3.96, respectively, which showed a significant increase in problem-solving ability (p<.001). There were significant differences in the dimensions of problem-solving ability, except for problem clarification. Therefore, it was confirmed that the home economics and convergence education program applying problem-based learning method is an effective class for improving students' problem-solving ability.

• Journal of Korean Tunnelling and Underground Space Association
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• v.23 no.6
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• pp.535-547
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• 2021

A policy to expand the hydrogen economy has been established in Korea and the supply of FCEV is being expanded to realize a hydrogen society. Therefore, the supply of FCEV is expected to increase rapidly, and a solution to respond to accidents of FCEV is required. In this study, an experimental study was conducted to analyze the effect of the hydrogen jet flame generated by a FCEV on the inner wall of the tunnel and the characteristics of the internal radiant heat. For the experiment, the initial pressure of hydrogen tank was set to 700 bar, and the injection nozzle diameter was set to 1.8 mm in order to make the same as the conditions generated in the FCEV. In addition, a tunnel fire resistance test specimen having the same strength as the compressive strength of concrete applied to general tunnels of 40 MPa was manufactured and used in the experiment. The results were analyzed for the separation distance (2 m and 4 m) between the hydrogen release nozzle and the tunnel fire resistance test concrete. As the result, the maximum internal temperature of the test concrete was measured to 1,349.9℃ (2 m separation distance), and the radiant heat around the jet flame was up to 39.16 kW/m².

• The Journal of the Convergence on Culture Technology
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• v.6 no.3
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• pp.67-74
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• 2020

Middle-aged women experience physical and mental changes along with the loss of femininity, and they feel psychologically empty according as their child's growth and independence reduces the role of care and parenting. These women understand the sense of loss and emptiness caused of their role reduction as an opportunity to maintain their values and beliefs for their leisure life. Accordingly, middle-aged women overcome negative emotions facing in the middle-aged such as depression or empty mind, and establish self-esteem and social support in recognizing it as an opportunity for building relationship and self-realization in social relations, which come through human to human communication by doing craft activities. In this study, in order to analyze the effect of the experience factor of craft activity to self-esteem and social support for middle-aged women, we set up a research model with the experience factor of craft activity as an independent variable and self-esteem and social support as dependent variables. As a result of the study, educational experiences, recreational experiences, and deviant experiences had a meaningful effect on self-esteem, but aesthetic experiences did not have meaningful effect. And, recreational experiences and aesthetic experiences had a meaningful effect on social support, but educational experiences and deviant experiences did not have meaningful effect on social support. Therefore, the institutional system for craft experiences, that can provide content of environmental characteristics for aesthetic factor and visual elements are required. It influences to the change of senses and emotions of middle-aged women. Also, there are limitations that this study did not consider factors of ultimate life changes through craft activities. Thus this study suggests development of new model for variables of wellbeing-related matters.

• Journal of the Korea Society of Computer and Information
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• v.25 no.2
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• pp.149-156
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• 2020

In this paper, we propose the moderating effects and mediation effects of social support on the relationship between art therapists' job stress and psychological burnout. Based on the previous studies, this study set up four types of variables: 1) independent variable, 2) moderating variable, 3) mediation variable, and 4) dependent variable. Job stress was identified as an independent variable, social support was identified as both a moderating variable and mediation variable, and psychological burnout was identified as a dependent variable. To empirically conduct this study, a total of 200 questionnaires were distributed to art therapists. Consequently, a total of 150 survey responses were collected. The survey results are as follows. First, there were not differences in job stress, psychological burnout, and social support due to personal environmental factors. This included career, employment type and working hours. Second, the result showed a high-level of correlation among job stress, psychological burnout, and social support. Third, social support was found to have a moderating effect on the relationship between the art therapists' job stress and psychological burnout. Forth, social support was found to have a moderating effect on the relationship between the art therapists' job stress and psychological burnout.

• Journal of Korea Port Economic Association
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• v.34 no.3
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• pp.159-182
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• 2018

The purpose of this study is to increase the competitiveness of big data in the maritime port organization, by understanding the expected performance and the intention to accept and use big data. In the empirical analysis of factors affecting the intention to use the big data technology for maritime port organizations, the variables employed are based on the Technology Organization Environment(TOE) and Diffusion of Innovations(DOI) theories, which are related to the acceptance of information and communication technologies. To achieve the objective of this study, an empirical analysis was conducted; this analysis targeted the personnel involved in the department of strategic planning and information technology in the related field. We set up eight hypotheses to examine the relevance between variables having three characteristics-technology, organization, and environmental characteristics. The empirical results are summarized as follows. First, it was seen that the technology characteristic, including relative advantage, complexity, and compatibility, has a significant effect on the expected performance. Second, the top management support of the organization characteristic has a significant effect, but the firm size of this characteristic has no significant effect on the expected performance. Third, the competitive pressure of the environment characteristic has a positive effect on the expected performance, while the regulatory support has no significant effect. Finally, the expected performance has a significant effect on the intention to use big data.

• Journal of the Korean Society for Nondestructive Testing
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• v.24 no.5
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• pp.499-507
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• 2004

We have studied tile detection techniques, which can determine the location and the weight of an intruder into infrastructure, by using fiber-optic ROTDR (Rayleigh optical time domain reflectometry) sensor and fiber-optic BOTDA (Brillouin Optical time domain analysis) sensor, which can use an optical fiber longer than that of ROTDR sensor Fiber-optic sensing plates of ROTDR sensor, which arc buried in sand, were prepared to respond the intruder effects. The signal of ROTDR was analyzed to confirm the detection performance. The constructed ROTDR could be used up to 10km at the pulse width of 30ns. The location error was less than 2 m and the weight could be detected as 4 grades, such as 20kgf, 40kgf, 60kgf and 80kgf. Also, fiber optic BOTDA sensor was developed to be able to detect intrusion effect through an optical fiber of tells of kilometers longer than ROTDR sensor. fiber-optic BOTDA sensor was constructed with 1 laser diode and 2 electro-optic modulators. The intrusion detection experiment was peformed by the strain inducing set-up installed on an optical table to simulate all intrusion effect. In the result of this experiment, the intrusion effort was well detected as the distance resolution of 3m through the fiber length of about 4.81km during 1.5 seconds.

• Journal of Preventive Medicine and Public Health
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• v.6 no.1
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• pp.43-49
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• 1973

In this study noise source in a ward at four general hospitals in Seoul area has been investigated and analysed. The degree of reaction against noise by 171 randomly has also been examined. The results of the study have shown that the source of noise is the speakers of wired broadcasting or from visiting guests in two hospitals located in residential area. The patients at the two other hospitals located at commercial site have been suffered more from traffic noise. However, because of their separated living at hospital from their ordinary houselife, sixty one percent of the inpatients have wished a music sound of around 60 dB (A). After having considered the results of the investigation and wishes of the inpatients, following suggestions have been made: 1. Reduce the number of guests or their length of stay. 2. Wired broadcasting system should be substitued by wireless one, or if it's unavoidable, it should be used in office rooms only. 3. Since the stops and starts of vehicles induce much noise, Seoul City Government be requested to prepare an appropriate administrative measure for the vehicles around hospital area and it should prevent the establishment of new hospitals along high way site. 4. By using earphone, inpatients can choose a wireless channel according to each individual's taste. This through the masking effect, would cover up the noise source. 5. Rooms along the streets should be utilized as offices, otherwise double windows should be set up for inpatient's wards.