• Journal of the Institute of Electronics Engineers of Korea CI
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• v.48 no.5
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• pp.49-54
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• 2011

Case-based reasoning is an efficient method to find solutions for new problems by using past cases after appropriate changes. It is widely used in everyday life because it resembles the way human acts. In this paper, we propose a military system that generates the most appropriate tactics for CGF (Computer Generated Forces) by utilizing past practices. It indeed applies case-based reasoning at the process of armed conflict. When the CGF squad on a mission, they will be given an action plan to reach the final goal. In the process of executing, tactics for specific action should be organized such as attacks, ambushes, and tactical moves. By using the proposed method, tactics were generated by case-based reasoning. The proposed system successfully receives input through each command and control agent, measures the degree of similarity with the case in case DB, selects the most similar case, modifies, uses, and then stores it for next time.

• Management & Information Systems Review
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• v.32 no.1
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• pp.19-41
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• 2013

The primary purpose of this study is to identify the influencing factors on the acceptance behavior of user in smartwork. For this purpose, a research model and hypotheses are developed based on relevant literature reviews. The data have been collected from 320 potential users and respondents were employee of Daejeon and Chungnam region. The results of hypotheses testing through covariance structural model analysis are summarized as follows. First, individual innovativeness has positive influence upon perceived ease of use and acceptance intention of smartwork, and self efficacy has positive influence upon perceived ease of use. Second, subjective norm of social influence has positive influence upon perceived ease of use and image has positive influence upon perceived ease of use and perceived usefulness. Third, number of exception of task characteristics has positive influence upon perceived ease of use and autonomy has positive influence upon perceived usefulness. Lastly, perceived ease of use has positive effect on the perceived usefulness and acceptance intention, and perceived usefulness positively related to acceptance intention in smartwork. Based on the findings, this study ends with theoretical and practical implications, as well as limitations and future research directions.

• Journal of Environmental Health Sciences
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• v.31 no.4 s.85
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• pp.266-279
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• 2005

The present study was conducted to analyze the causes of stress on the part of Korean radiological technologists depending on their working environments. For this purpose, 890 questionnaires were distributed to and collected from radiological technologists who were working at 44 general hospitals in 16 cities and provinces of Korea during the period from the mid July to the end of August 2003. The collected data were compared between regions, divided into the capital, metropolitan, medium and small cities, whose results are as follows: 1. As factors affecting working conditions, drinking was found to exert more influence on radiological technologists in small- and medium-sized cities, while loyalty to immediate seniors and organizations was the one producing greater influence on them in metropolitan cities than other cities. Overall, position, job satisfaction and physical condition seemed to have a great effect on them (p<0.001).2. In terms of factors related to their roles, job satisfaction and physical condition played in general a greater role for radiological technologists (p<0.001). Immediate seniors and behavioral conducts were also found to have a lot influence on them (p<0.01).3. As for job conflicts, the kind of medical institutions seemed to exercise a great deal of impact on radiological technologists (p<0.05), while colleagues, immediate seniors, job satisfaction and physical conditions also produced a lot of influence on them as a whole (p<0.001).4. Regarding job autonomy, radiological technologists were found to have been less influenced by position in metropolitan cities and by immediate seniors in the capital city (p<0.01). As a whole, however, age and job satisfaction acted as decisive factors of influence on them (p<0.001). 5. Among factors related to job burden, gender played a bigger role for radiological technologists in metropolitan cities as the kind of medical institutions did in small- and medium-sized cities. Centrally, job satisfaction and behavioral conducts exercised a great impact on them (p<0.001).6. Job stability seemed to be more immensely linked to gender and physical conditions in metropolitan cities whereas position did more in the capital city. In general, how ever, job satisfaction produced a far-reaching (p<0.001).

• Asia pacific journal of information systems
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• v.20 no.1
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• pp.57-79
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• 2010

In a virtual community, one can possess multiple identities and pretend to be different by creating self-identity in contrast with his or her actual self. Does false identity undermine the qualitative growth of a virtual community by reducing members' accountability? Or does it stimulate their contributive behaviors by ensuring freedom of speech? It is imperative to understand the effects of multi-identity considering the distinct properties of a virtual community in which people easily change their identities at little or no cost. To answer these questions, we adopted the concept of self-discrepancy from the social psychology theory rooted in the concept of the self and developed a theoretical model to predict quality of contribution of the individual member in virtual communities. Based on the self-discrepancy theory, we first identified two different domains of the self: (1) an "actual self" that consists of attributes that the person believes he or she currently possesses in real life and (2) a "cyber self" that consists of attributes the person believes he or she possesses in a virtual community. Next, we derived an index for two different types of self-discrepancy by using the differences between the actual and the cyber identities: Personal Self-discrepancy and Social Self-discrepancy. Personal Self-discrepancy reflects the degree of discrepancy between actual and cyber identity regarding a person's intelligence, education, and expertise. Social Self-discrepancy reflects the degree of discrepancy between actual and cyber identity regarding a person's morality, sociability, and accordance with social norms. Finally, we linked them with sense of virtual community, perceived privacy rights, and quality of contribution to examine how having a multi-identity influences an individual's psychological state and contributive behaviors in a virtual community. The results of the analysis based on 266 respondents showed that Social Self-discrepancy negatively influenced both the Sense of Virtual Community and Perceived Privacy Rights, while Personal Self-discrepancy negatively influenced only Perceived Privacy Rights, thereby resulting in reduced quality of contribution in virtual communities. Based on the results of this analysis, we can explain the dysfunctions of multi-identity in virtual communities. First, people who pretend to be different by engaging in socially undesirable behaviors under their alternative identities are more likely to suffer lower levels of psychological wellbeing and thus experience lower levels of sense of virtual community than others. Second, people do not perceive a high level of privacy rights reflecting catharsis, recovery, or autonomy, even though they create different selves and engage in socially undesirable behaviors in a virtual community. Third, people who pretend to be different persons in terms of their intelligence, education, or expertise also indirectly debase the quality of contribution by decreasing perceived privacy rights. The results suggest that virtual community managers should pay more attention to the negative influences exercised by multi-identity on the quality of contribution, thereby controlling the need to create alternative identities in virtual communities. We hope that more research will be conducted on this underexplored area of multi-identity and that our theoretical framework will serve as a useful conceptual tool for all endeavors.

• Journal of Convergence for Information Technology
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• v.11 no.12
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• pp.148-157
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• 2021

This research aims to adapt and evaluate the validity and reliability of the Korean version of the Interdisciplinary Education Perception Scale (K-IEPS). The original IEPS was translated into Korean according to the World Health Organization's guidelines. A total of 302 questionnaires were collected from healthcare professional students at 4 universities in South Korea. The validity and reliability of the scale were measured using Exploratory Factor Analysis (EFA), Confirmatory Factor Analysis (CFA), Cronbach's alpha, and Intraclass Correlation Coefficient (ICC). As a result of the factor analysis, a ten-item scale with two factors (Competency & Autonomy and Perception of Actual Cooperation) was achieved. Additionally, the Cronbach's alpha coefficient was found to be .87, and test-retest reliability was .83. Our study results show that the Korean version of the IEPS is a valid and reliable instrument. Therefore, the K-IEPS can be used in measuring interdisciplinary perceptions of healthcare professional students between different occupational groups.

• International Area Studies Review
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• v.13 no.3
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• pp.191-210
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• 2009

Energy Security has been factor of great importance to national security, economy, society and all other areas. However, it has been in the lack of situation where there is no leading method to measure energy security nor to compare among countries until now. In the research, objective index to assess energy security has been developed and compared among the level of countries in terms of energy importing countries' perspective. Based on the suggested index, comparison for the energy security level has been explained. The implication of the research is that in terms of energy importing perspectives, method to appraise energy security and according to this, energy security rate by each countries with respect to LNG. This method is doubtlessly applicable to comparison of security rate from other resources and fluctuation of energy security by reflecting other factors. Also, discussion about how increased autonomy of resources can impact Korean energy security with regard to recent international energy development. As a consequence, it has revealed that enhanced authority of resources evokes ascendancy of energy security in a positive way.

• 한국사회정책
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• v.25 no.4
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• pp.265-299
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• 2018

The pilot project for type diversification of self-sufficient support center that convert the centre corporation into social cooperative was introduced in 2015. That aimed to increase the number of participants of self-sufficient programmes and to create more jobs for the working poor through expanding the center's autonomy of usage of budget and arrangement of self-sufficient programmes. This study analyzed the organization transmitting processes and changes of the centers took part in the pilot project, then aimed to suggest the improvement schemes to be helpful for reinforcing positive efforts and removing obstacles in the process converting. The results show that converting into social cooperative is a choice for the sustainability of the centers led by surroundings rather than self-initiated plan. There are some positive changes that are increasing the enterprising spirit and obligation of the center staff. Further more, the cooperation with other community organizations is enhanced based on achieving regional recognition, and support of local governments and the opportunity for new businesses are expanded. However, these are very limited in the regions where social economy is undeveloped. Eventually, we should seek the development schemes of the pilot project considering the reduction of the number of participants in self-sufficient programmes and decreasing of their ability to work, even if some positive aspects are revealed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.8
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• pp.139-148
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• 2019

Fostering science-gifted individuals are very important for the future of the nation, and it is especially important to cultivate information-gifted individuals in the age of the fourth industry. There is no standardized curriculum for each gifted education center of the University. Therefore, in this study, we analyzed how effective the curriculum developed on the basis of computing thinking is to affect the characteristics of the information-gifted individuals. The curriculum developed on the components of computing thinking was applied to the information-gifted students of K University. In order to verify the effectiveness of the curriculum, we developed a creative personality test and an intrinsic motivation test, and conducted tests before and after the training. We compared pre-post test results by t-test with R program. The creative personality test consisted of 36 items with 6 factors: risk-taking, self - acceptance, curiosity, humor, dominance, and autonomy. The intrinsic motivation test consisted of 20 items with 5 items: curiosity and interest oriented tendency, challenging learning task preference orientation, independent judgment dependency propensity, independent mastery propensity, and internal criterion propensity. The effect of the curriculum on the creative personality of the experimental group was significant (0.009, 0.05). The significance level of the intrinsic motivation was 0.056 and was not significant at the 0.05 level of significance.

• The Journal of Korean Society for School & Community Health Education
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• v.23 no.4
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• pp.17-28
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• 2022

Objectives: This study aimed to provide the measures for improving the self-directed learning ability and the reference data for substantializing the educational programs by verifying the main factors affecting the self-directed learning ability of dental hygiene students in reality when the learners' autonomy is emphasized than ever. Methods: From June 20 to July 4, 2022, an online survey was conducted targeting total 218 dental hygiene students. The collected data was analyzed by using the SPSS Program Version 22.0. Results: First, in the results of analyzing differences in detailed items of self-directed learning ability according to the general characteristics, the 'students who entered the department of dental hygiene by considering their aptitude and interest' showed higher results than the 'students who entered the department by considering their high school record'. Second, when the academic efficacy, study immersion, and problem-solving ability of dental hygiene students were higher, their self-directed learning ability was also high. Third, the factor that had the greatest effect on self-directed learning ability of dental hygiene students was problem-solving ability, which was followed by academic efficacy and study immersion. Conclusion: Putting together the results above, in order to cultivate the problem-solving ability of dental hygiene students, it would be necessary to operate the problem-solving-centered simulation course that could foster critical thinking, interactions with others, and creative approach and solution to problems in dental medical site. It would be also possible to improve their academic efficacy by applying the learning mentoring & one-to-one learning counseling program, and also strengthening proper feedbacks for learners. Moreover, the study immersion could be strengthened by developing and operating the emotion-based learning motivation program & learning coaching program through the process of verifying the potential and growth needs of learners, exploring one's own resources through learning diagnosis/introspection, and exploring the career-related vision for strengthening the learning motivation, which could have positive effects on the improvement of self-directed learning ability.

• Journal of the Korean Society of Safety
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• v.37 no.1
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• pp.64-69
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• 2022

The study measured a subway construction worker's Macpa stress by Heart Rate Variability measuring instrument and conducted a survey of Korean job stress from subway construction workers. Also, the study analyzed the relationship between Macpa stress index and Korean job stress result and suggested managing stress method for each item. According to National Statistical Office data, the first line subway in Seoul was started to open in 1974. The extended total length is 996 kilometers until 2019. Many aged workers are currently working at subway construction sites due to the avoidance of young workers since the past until now. It means that the elderly has a substantial portion among subway construction workers. The productivity has been adversely affected by health problems due to the aging of workers, job stress due to heavy work, and personal health problems. So, the regulation and policies on job stress health management are being strengthened. The data were measured Macpa stress by machine measuring heart rate variability and conducted Korean job stress survey(shortened) from Sa-sang to Ha-dan line Busan subway construction workers for analyzing the relationship. Independent variable were age, job duration, job position, employment type, working type in this study. Macpa's dependent variable was stress index and Korean job stress survey(shortened)'s dependent variables were job requirements, job autonomy, relationship conflict, job instability, organizational structure, inappropriate compensation, working place culture, and total score. SPSS 12.0 K Statistics Program was used for statistical analysis. Kruskal-wallis test, a nonparametric statistical analysis, was used because the data are difficult to be assumed as normal distribution. As a result, the paper indicated the significant correlation between Macpa stress index and Korean job stress(short version). The elderly workers presented higher Macpa index and higher job stress due to aging and heavy-duty work. The majority workers were daily workers who had unstable working condition and uncertainty about the future. The study suggested a manual that could reduce job stress for subway construction workers and future study deriving management tool through analyzing job stress factor is necessary.