• Journal of the Korean Society of Marine Environment & Safety
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• v.26 no.7
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• pp.838-844
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• 2020

The purpose of this study is to examine whether personality and reward affect PSM of new maritime police officer recruits. Results are as follows. First, among the personality factors, the neuroticism sub-factor had significant positive effect on PSM sub-factors favorable perception towards public policy, commitment to public interest, and empathy. Also, the extroversion sub-factor had significant effect only on the self-sacrifice sub-factor of PSM. Second, the reward factor mostly didn't have significant effect on PSM. The internal reward sub-factor had significant effect on the empathy sub-factor of PSM. These results confirm that personality factors have significant impact on public service motivation. This implicates the need for policy improvements to reflect this result, and further empirical studies on the relationship between reward and public service motivation.

• The Journal of the Korea Contents Association
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• v.21 no.8
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• pp.285-293
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• 2021

This study aims to identify the relationship between outcome expectancy and illegal use of music sources, and examined the parallel double mediating model of reward sensitivity and social dilution of responsibility on that relationship. To achieve the purpose this study, data were collected from 302 male and female high school students living in Seoul metropolitan area, and a double mediating effect was analysed with PROCESS Macro 3.5 Model 4. Results indicated that outcome expectancy was positively correlated with reward sensitivity, social dilution of responsibility, and illegal use of music sources of high school students, whereas reward sensitivity and social dilution of responsibility were positively correlated with illegal use of music sources. This study found that reward sensitivity and social dilution of responsibility were mediating outcome expectancy and illegal use of music sources in parallel. These findings suggest that psychological mechanisms lead adolescents use illegal music sources might be important, and provide useful information for making strategies to prevent adolescents' uses of illegal music sources.

• Journal of the Korea Society of Computer and Information
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• v.29 no.1
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• pp.11-19
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• 2024

Multi-agent systems can be utilized in various real-world cooperative environments such as battlefield engagements and unmanned transport vehicles. In the context of battlefield engagements, where dense reward design faces challenges due to limited domain knowledge, it is crucial to consider situations that are learned through explicit sparse rewards. This paper explores the collaborative potential among allied agents in a battlefield scenario. Utilizing the Multi-Robot Warehouse Environment(RWARE) as a sparse reward environment, we define analogous problems and establish evaluation criteria. Constructing a learning environment with the QMIX algorithm from the reinforcement learning library Ray RLlib, we enhance the Agent Network of QMIX and integrate Random Network Distillation(RND). This enables the extraction of patterns and temporal features from partial observations of agents, confirming the potential for improving the acquisition of sparse reward experiences through intrinsic rewards.

• The Journal of the Korea Contents Association
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• v.8 no.10
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• pp.224-233
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• 2008

This study is planned and designed to develop an education program for students majoring health care in order to improve their knowledge and attitudes of ethics and service. First, this study examine the educational needs of 505 students majoring health care and 175 field workers through literature reviews, survey of questionnaire, and opinions of experts. And then, the educational goals, contents, methods are selected and established in this study. Lastly, the effects of the ethics and service education program shown by their knowledge and attitudes are examined. In the effect analyses, we can see there is meaningful difference in average variation of knowledge level in before and after the education, and also find that average scores after education was higher than before education in the field of intrinsic, social, and altruistic compensations. We can conclude that the developed education program in this study, has an effect on increasing a standard of value of the students participated in the program.

• Journal of Digital Convergence
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• v.12 no.12
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• pp.77-85
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• 2014

This study investigate the youth perceived importance of entrepreneurship education program on the self leadership strategy. The findings are as follows: First, the creativity category of entrepreneurship education were positively related with behavior focused self leadership, natural reward self leadership strategy and constructive thought self leadership. Second, the management category of entrepreneurship education were positively related with natural reward self leadership strategy. Third, the patent category of entrepreneurship education were positively related with behavior focused self leadership and constructive thought self leadership. Consequently, when the youth recognized the importance of management, creativity and patent category, the level of self control, self reward and self efficacy were increased.

• Journal of Digital Convergence
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• v.14 no.5
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• pp.237-245
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• 2016

Anxiety for employment of workers has been increased due to rapid change of management environment, which tends to increase psychological instability on the job of all workers. Accordingly, this study examined the moderating effect of self-efficacy between job instability and organizational citizenship behavior. The research subjects were employees of small and medium companies in the manufacturing industry in Daejeon-si, Sejong-si and Chungcheongnam-do and Chungcheongbuk-do. 500 sheets of the questionnaire were distributed from August 5, 2015 to August 30, 2015. Among them, 321 were collected with 64.2% of the response rate. Total 312 sheets were used for analysis excluding 9 sheets with incomplete answers. The results are as follows. Firstly, it proved that job instability had negative (-) effect on organizational citizenship behavior. Secondly, in the relation between job instability and organizational citizenship behavior, there was moderating effect of self-efficacy. Accordingly, if self-efficacy of the workers is higher in the threat of job instability, it means organizational citizenship behavior would increase. In conclusion, in the current situation where there is instable survival of corporation and job, the management of small and medium manufacturing company needs to increase self-efficacy through training and internal reward to employees. The limit of the study is that the research subjects were employees of small and medium companies in the manufacturing industry in Daejeon-si, Sejong-si and Chungcheongnam-do and Chungcheongbuk-do. Accordingly, as situational peculiarity may be observed, it is required to have expanded study to more various areas, works and industries.

• Science of Emotion and Sensibility
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• v.16 no.3
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• pp.319-332
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• 2013

Previous research on learning and memory has focused on how they are constructed through past experiences. Recent studies, however, have shed light on that such cognitive processes are in service of higher goals of maximizing future rewards. This review paper aims to introduce and discuss a related line of research. First, this paper introduces researches that show goal-directed model-based reinforcement learning, in which agents choose a behavior that does not necessarily bring immediate rewards but will allow future rewards, based on generalization and analogical extrapolation. It also reviews studies on neural substrates of goal-directed learning, and discusses that cognitive process implicated in striatal dopaminergic signals can also influence memory. Especially, memory is not a merely passive process of storing and retrieving past experiences homogeneously, but rather results of a decision-making process to serve higher goals. The body of research suggests that information on future rewards can have influence on current cognitive processing in a retrospective manner.

• Journal of the Korean Home Economics Association
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• v.40 no.6
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• pp.53-67
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• 2002

The purpose of this study is to examine consumer characteristics according to the recycling behavior and analyze the affected variables on recycling behavior. For the empirical analysis, the data was collected 585 consumers from May 14 to June 8,2001. The statistical methods for this study were descriptive statistics, t-tests, cross tables, ANOVA and multiple regression analysis using SPSS PC program. The major findings of this study were as follows: 1. Convenience was important variables to explain the recycling behavior of household trash between two groups, but extrinsic incentives of rewards for undertaking the behavior was not significant. 2. Intrinsic motivation like as perceived consumer difficulties(PCD), perceived consumer effectiveness(PCE), recycling altitude, and ethic was significant variables to compare two groups. 3. Recycling knowledge was important to explain the recycling behavior, but no impact on recycling behavior. 4. Except age, all of socially demographic variables were significant to compare the recycling behavior of two groups. 5. Recycling attitude and convenience had influence on recycling behavior. Especially, ethic had influence on low level recycling behavior of consumer group.

• Journal of Korean Orthopaedic Sports Medicine
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• v.6 no.2
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• pp.83-87
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• 2007

투구운동은 견관절에 반복적인 압박력 및 신장력을 가하게 되며 이는 견관절의 정적 안정력의 약화를 유발하게 된다. 초기의 경도의 불안정성은 근육 등 동적 안정력의 작용으로 안정적인 운동상태를 유지할 수 있으나 반복적인 운동이 지속될 경우 근육이 피로해 져서 동적 안정력의 보상작용을 통한 안정성을 얻을 수 없게 된다. 이는 일차적으로 견관절의 불안정성을 유발할 뿐만 아니라, 이차적으로 견봉하 충돌증후 및 내적 충돌증후 등의 증상을 나타내기도 한다. 과 투구로 인한 대부분의 운동손상은 보존적 치료로 좋은 결과를 볼 수 있으며, 이는 일차적으로 투구를 중지하여 관절을 안정시키며 진통 소염제나 물리치료 등을 통한 항 염증치료, 그리고 회전근개 및 견갑골 주위근육의 강화운동 등의 단계로 진행된다. 적절한 보존적 치료에도 불구하고 증상이 지속될 경우 정확한 진단에 근거한 수술적 치료 및 조절된 재활운동 프로그램을 통해 조기 운동 복귀를 기대할 수 있다.

• Transactions of the Korean Society of Mechanical Engineers
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• v.17 no.11
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• pp.2730-2741
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• 1993

A mathematical model of the seeker scan-loop which is composed of a spin-stabilized gyroscope and its driving signal processors is derived. The derived model has a transmission zero pair on the imaginary axis near to the required bandwidth. The LQG/LTR design methodology is evolved for the derived scan-loop model. To implement the designed LQG/LTR compensator to the actual plant, the compensator order is reduced using the internally balanced realization method. The performances of the LQG/LTR compensator are tested and compared with those of the P-control. Especially, stability-robustnessexperiments for model uncertainties represented in the form of time-delays are performed. It is demonstrated that the LQG/STR compensator is actually very robust to model uncertainties.