• The Journal of the Korea Contents Association
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• v.17 no.4
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• pp.285-293
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• 2017

Although there have been continued researches on the effect of fatigue among organization members on organizations, there has been an absence of studies on sub-factors of organizational commitment using Saito(1999)'s whole questionnaire. Therefore, this study aimed to measure the level of fatigue among police officers and empirically examine the effect of fatigue on organizational commitment. Based on the previous studies, fatigue(mental fatigue and physical fatigue) of police officers and physical disharmony were selected as independent variables, and organizational commitment(affective commitment, continuance commitment and normative commitment) was selected as a dependent variable. The meanings and the implications of this study are as follows. First, from a theoretical perspective, this study has significance as the first study, which used Saito(1999)'s whole scale and examined the relationship between sub-variables of organizational commitment in a police organization. This study also confirms the importance of fatigue management for organization managers. Second, from a perspective of organization management, this study implies that effort should be made to measure fatigue of police officers, who have 5 to 10 years of service and work as Senior patrol and sergeants and manage it actively on an organizational level, and there is a need to develop a training program for improving their attitudes towards organizations.

• The Journal of the Korea Contents Association
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• v.17 no.7
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• pp.144-157
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• 2017

Although student satisfaction is important in university development, there have been many studies in this area. Especially student satisfaction is closely related to emotional aspect, but most studies have tended to study it with cognitive view. To suggest the model of student satisfaction with hedonic view, the model which we present in this study includes professor presence and interaction, PAD(pleasure, arousal, dominance), satisfaction(dependent variable). Through reviewing previous studies, we expect that these professor presence and students' interaction effect PAD, in turn, PAD effect satisfaction. Survey research is employed to test hypotheses involving professor presence, students' interaction, PAD and satisfaction. Previous researches, such as education, marketing, game, have been referenced to measure constructs. We collected data involving students in a university, and used 219 respondents to analyze these data using LISREL structural modeling. Professor presence had positive effects on professor-student interaction, pleasure, arousal, and dominance. Also professor-student interaction had positive effect on pleasure and arousal, and student-student interaction had positive effects on pleasure and arousal, dominance. As a result, PAD had effects on students' satisfaction. In the final section, we discussed several limitations of our study and suggested directions for future research. We concluded with a discussion of managerial implications, including the potential to advance understanding learning in a university.

• Science of Emotion and Sensibility
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• v.22 no.3
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• pp.103-108
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• 2019

Although the Korean Armistice Agreement resulted in complete cessation of the hostilities of the Korean War, it also initiated a rule that obligates Korean men to compulsorily participate in military service. However, psychological factors such as anxiety, stress, and negative perception among the young participants joining the military lead to inefficiency in training and performance. Several types of media production companies have been tasked to deal with this problem. However, their tools have not adequately addressed the root causes of the psychological distress. Stress rates are still high among the youth. This paper offers a method of reducing anxiety and psychological stress among those joining the military. It also aims to help improve concentration and cope with the pessimism of military life. The study measured the increase in concentration as well as the changing rate of anxiety and psychological stress in the participants of two experimental groups. A significant result with t = 2.487, p = 0.042, and 95% confidence levels was revealed by analyzing the data pertaining to the experimental group that was directly exposed to the sensorimotor rhythm (SMR) wave implying that this brain wave alleviated feelings of anxiety and psychological stress. The method proposed in this paper can thus be applied to mitigate stress in soldiers and help them with their personal and military lives. Further interdisciplinary experiments examining the associations between the electrocardiogram and electroencephalogram are required.

• Journal of the Korean Institute of Gas
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• v.13 no.2
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• pp.41-48
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• 2009

I collected the cases of CNG vehicle accidents which had happened for 30 years and analyzed the causes of the accidents according to each type of cylinders. There are about six accidents including three cylinder explosion accidents due to bad heat treatment, one composite damage, one CNG vehicle fire, and one fuel piping accident owing to the poor maintenance. When looking into the cylinder types involved in the accidents and the causes, 29% of the cylinder accidents are Type I and 24% Type IV, 16% Type II, and 14% Type III. 37% of the accidents are caused by the defects of the raw materials and the errors of a manufacturing process, 16% by the stress corrosion cracking as a result of the repetitive use, 15% by the cylinder's explosion on account of the malfunction of PRD(Pressure Relief Device) and the overpressure. The remainders of the causes are fire and unknown causes. Therefore, cylinder manufacturers have to strengthen quality management of raw materials and manufacturing process and painting regardless of each type of cylinder. Also bus operators need to make an effort to keep safety condition through every day check.

• Journal of the Korean Institute of Gas
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• v.18 no.6
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• pp.7-13
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• 2014

As the interest on the air pollution is gradually rising up at home and abroad, automotive and fuel researchers have been working on the exhaust emission reduction from vehicles through a lot of approaches, which consist of new engine design, innovative after-treatment systems, using clean (eco-friendly alternative) fuels and fuel quality improvement. This research has brought forward various main issues : whether PM emissions should be regulated for diesel and gasoline vehicles and whether gasoline and LPG powered vehicles can be further neglected from PM emission inventories. Finally, the greenhouse gas ($CO_2$, $CH_4$, $N_2O$) regulation has been discussed including automotive emission regulation. The greenhouse gas and emissions (PM) particle of automotive had many problem that cause of ambient pollution, health effects. This paper discussed the influence of LPG fuel on automotive cold startability and exhaust emissions gas. Also, this paper assessed emission characteristics due to the test temperature. These test temperature were performed by dividing the temperature of the test mode and the lowest local temperature in winter. Through this study, the correlation of cold startability, exhaust emission and greenhouse gas emission was analyzed.

• Korean Journal of Food Science and Technology
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• v.31 no.5
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• pp.1300-1307
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• 1999

Supercritical fluid extraction was applied to recycling triglyceride from used shortening. Used shortening and its fractions were analyzed with high performance size exclusion chromatography for their composition in triglycerides, polymer and low molecular weight compounds. Conjugated diene value and color of the fractions were also measured with a UV spectrophotometer and a colorimeter, respectively. Pressure and temperature ranges employed were $15{\sim}30$ MPa and $40{\sim}60^{\circ}C$, respectively. Concentration of fat in supercritical (SC) $CO_2$ ranged from $0.3\;X\;10^{-3}{\sim}7.4\;X10^{-3}(g\;fat/g\;CO_2)$. An exponential relation between concentration of fat in SC $CO_2$ and density was observed. Color of the extracts was light yellow which was very close to that of the fresh shortening. Low molecular weight compounds were preferentially concentrated in the initial fraction, while polymer was extracted in the final fraction. Conjugated diene value of the initial fractions was clearly lower than that of feed. It increased sharply as the polymer content in the fraction became significantly large.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.6
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• pp.486-493
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• 2017

This study examined the stress reaction, resilience levels, and the effects of the stress reaction on the resilience among dental hygiene students. From July 11, 2016 to July 29, 2016, questionnaires were collected from 274 dental hygiene students in several areas. The collected data were analyzed by descriptive statistics, t-test, One-way ANOVA, Pearson correlation coefficient, and multiple regression using SPSS Statistics ver.21.0. The stress reaction level of dental hygiene students was found to be 2.59 out of 5 points and the resilience level was 4.47 out of 7 points. The stress reaction and resilience showed a significant negative correlation in Fatigue, Tension, Frustration, Anger, Depression, Aggression(p>0.001), and stomatization(p>0.05). In other words, the lower the resilience, the higher the stress reaction.The factors of stress reaction influencing the resilience were depression and somatization, which explained 25.6%(R2=0.256). Therefore, to enhance the resilience of dental hygiene students, it is important to investigation the stress reaction and there should be more concern with students who have higher depression and stomatization. In addition, efforts to control the stress reaction are needed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.8
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• pp.183-192
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• 2018

The purpose of this study was to compare female nursing college students with respect to drinking habit, drinking motives, and drinking problems. (Ed note: confirm edited version; original is a bit unclear in intent) Subjects include nursing college students in some areas, and data were collected between April and May, 2018. A total of 181 questionnaires were analyzed. The frequency analysis was used to examine the differences between the normal and drinking-problem groups. Pearson's correlation analysis was used to examine the correlations of drinking problems, and logistic regression analysis was used to analyze the factors related to drinking problems. The findings show that the frequency of drinking, rate of drinking, drinking motives, life stress, and prior experiences with drinking problems recorded a high risk ratio for drinking problems. Specifically, the group with a drinking frequency of 2~3 times per week showed a risk ratio that was 21.53 times higher than the group with a drinking frequency of 1~4 times per year. The group of higher drinking motives recorded a risk ratio that was 5.96 times higher than the group of lower drinking motives. The group of higher experiences with drinking problems showed a risk ratio that was 8.80 times higher than the group of lower experiences with drinking problems. In conclusion, the frequency of drinking, rate of drinking, drinking motives, life stress, and experiences with drinking problems were factors highly related to the drinking problems in female college students. The results highlight that careful evaluation of drinking habit of college students are needed. Moreover, periodic temperance education and programs designed to identify and prevent drinking problems are necessary to lower the risk of developing drinking problems and promote a safe drinking culture.

• Journal of Music and Human Behavior
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• v.10 no.2
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• pp.35-54
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• 2013

The purpose of this study was to examine how Korean music therapy students experience growth under clinical supervision. The investigator conducted in-depth qualitative interviews with 9 students from 3 different universities in Seoul who had at least three semesters of clinical supervision. Data was analyzed using a modified grounded theory approach to construct the growth experience of music therapy supervisees. Results suggest that growth can be understood in terms of both personal and professional domains and includes four types of experiences: growth hindering, fostering, mediating, and revealing. In the personal domain, hindering factors are defensiveness, narcissistic trauma, avoidance and anxiety whereas growth fostering and mediating factors include reflection on self, musical self, unconscious drives and conflicting issues as well as self-driven problem solving skills. As a result, growth in the personal domain is associated with increased self-acceptance and self-awareness. Growth in the professional domain is hindered by having trust issues, performance anxiety, identity crisis, and being hypersensitive to the judgment of others. On the other hand, growth is fostered and mediated by opening the self and interacting more with others, building trusting relationships with peers and supervisors, and establishing a new relationship with music, which leads to improved attitude, increased motivation, and more efficient and effective training.

• Journal of the Korean Society of Marine Environment & Safety
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• v.18 no.3
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• pp.253-259
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• 2012

The projection on the demand for seafarers is seen to continue to rise in consonance with the world's fleet increasing tonnage. It is also expected that recurring officer shortages is paramount when global markets bounce off from the economic downturn it experienced for the last few years. In BIMCO/ISF(The Baltic and International Maritime Conference/International Shipping Federation) report for 2010, a continuous effort to produce competent seafarers should be adapted and as much as possible, reduce the wastage in the industry to address the looming scenario. The Republic of Korea, an OECD member, is a powerhouse in shipbuilding industry and has also had continued to show also an expanding trend in its fleet. On the other hand, the Philippines is still acknowledged as the main source of manpower for ocean-trading vessels. In this paper, a statistical comparison of maritime graduates' career path between the two countries is presented. In conclusion, it is suggested that a mutual co-operation between the Republic of Korea and the Philippines can be established with focusing on international maritime education and training collaboration.