• Journal of the Korea Institute of Military Science and Technology
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• v.18 no.4
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• pp.451-458
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• 2015

This paper handles self-collision avoidance for a rescue robot with redundant manipulators. In order to detect all available self-collisions in advance, minimum distances between arbitrary robot parts should be monitored in real-time. For the minimum distance estimation, we suggest a modified method from a previous skeleton algorithm which has less computation burden and realize collision avoidance based on a potential function using the proposed algorithm. The resultant command by collision avoidance should not disturb a given primary task, so null-space of joint solution from a CLIK is utilized for collision avoidance by a gradient projection method.

• Journal of the Korean Society of Safety
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• v.33 no.6
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• pp.77-84
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• 2018

Report documents of industrial and occupational accidents have continuously been accumulated in private and public institutes. Amongst others, information on narrative-texts of accidents such as accident processes and risk factors contained in disaster report documents is gaining the useful value for accident analysis. Despite this increasingly potential value of analysis of text information, scientific and algorithmic text analytics for safety management has not been carried out yet. Thus, this study aims to develop data processing and visualization techniques that provide a systematic and structural view of text information contained in a disaster report document so that safety managers can effectively analyze accident risk factors. To this end, the risk factor map using text mining and self-organizing map is developed. Text mining is firstly used to extract risk keywords from disaster report documents and then, the Self-Organizing Map (SOM) algorithm is conducted to visualize the risk factor map based on the similarity of disaster report documents. As a result, it is expected that fruitful text information buried in a myriad of disaster report documents is analyzed, providing risk factors to safety managers.

• Knowledge Management Research
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• v.20 no.1
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• pp.133-153
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• 2019

Due to the uncertainty of dynamic business environment, modern organizations have been giving attention to dynamic capabilities beyond traditional notion of core competence. Among them, absorptive capacity and boundary-spanning activity are considered the most important. The former refers to activities regarding acquisition, assimilation, transformation and exploitation of internal and external knowledge. The latter is composed of boundary-loosening and boundary-tightening activities to detect internal or external information and then to preserve, protect, or acquire resources. Thus, both have achieved wide recognition as a potential source of change and innovation. This study investigated the cross-level relation between boundary-spanning leadership at team level and absorptive capacity at individual level. We also explored self-efficacy and extra-role behavior that can affect employees' absorptive capacity. To test multi-level analysis, the survey data were collected from 862 members in 137 teams of different firms. Results revealed that boundary-spanning leadership had the positive cross-level impact on absorptive capacity in the team context. Moreover, absorptive capacity was positively associated with self-efficacy and extra-role behavior at individual level. Based on these findings, we provided theoretical and practical implications to address rapidly changing environments and discussed limitations of this paper for further research.

• The Journal of Industrial Distribution & Business
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• v.14 no.4
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• pp.1-10
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• 2023

Purpose: This paper aims to investigate how self-regulatory focus (SRF) influences the relationship between perceived brand localness (PBL) and purchase intentions (PI). This research adopted both domestic and foreign-owned brands to examine the moderating effect of self-regulatory orientations and product types respectively to exclude the interference of brand origin. Research design, data, and methodology: This study surveyed Chinese consumers and collected data using social media applications. ANOVA analysis and PROCESS modeling were adopted to complete the empirical analysis. Results: This research demonstrates that brand origin does not inhibit the positive impact of PBL on purchase intentions regardless of whether it originates from mainland China or not. Study 1 proved that the effect of PBL on PI is more convincing among consumers with promotion focus orientations. In study 2, higher purchase intentions were found for hedonic perceived local brands among promotion-focused consumers while significant preferences were found for utilitarian perceived local brands among prevention-focused consumers. Conclusions: This research complements the literature about the potential psychological factors influencing PBL and contributes to marketers in developing effective marketing strategies and appropriate positioning decisions. Overall, this study has important theoretical and managerial contributions to international marketing, particularly in the context of the current recession.

• Korean Journal of Childcare and Education
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• v.8 no.2
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• pp.101-120
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• 2012

The purpose of this study was to investigate relationships between teachers' sense of self-efficacy and their job satisfaction to improve the quality of child care centers. It is crucial for teachers to have self-efficacy to reveal their potential for change and have opportunities to work better. In addition to teachers' self-efficacy, teachers' job satisfaction should be added to offer better child care service for parents as well as children. In this study, teachers' personalities and self-efficacy were compared between public and private child care centers to have further discussion making a progress of their job satisfaction. The results of this study are as follows : (a)The location of child care centers have meaningful effects on teachers' job satisfaction both in public and private child care centers equally. (b)Teachers in public child care centers have stronger influences on self-efficacy in home-related education and positive learning environment than teachers in private child care centers. (c)Teachers' participation in decision making is a significant factor that has affects on teachers' job satisfaction both in public and private child care centers.

• Journal of Korean Academy of Nursing
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• v.42 no.6
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• pp.879-888
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• 2012

Purpose: There is evidence that parent-child cohesion is a potentially influential factor in children's self-esteem and acculturation. However, no research to date has examined cohesion with parents as a potential pathway between Korean proficiency and self-esteem or acculturation among children from multicultural families. This study was done to address these limitations by examining whether and to what extent cohesion with parents mediated the effect of Korean proficiency on self-esteem and acculturation among children from multicultural families. Methods: Data were collected from a sample of 138 mothers and their children living in Seoul, Daegu, Kyungi province, and Kyungpook province. Multiple regression analysis was used to examine the relationships between the variables of interest. Mediation effects of cohesion with parents were tested by following the procedure recommended by Baron and Kenny (1986). Results: Cohesion with parents partially mediated the relationship between Korean proficiency and self-esteem. For children's acculturation, the effect of Korean proficiency was partially mediated through father-child cohesion. Mother-child cohesion completely mediated the relationship between Korean proficiency and acculturation. Conclusion: These findings suggest that to help children from multicultural families experiencing difficulties with self-esteem or acculturation, it might be useful to develop programs that are aimed at strengthen cohesion with parents.

• Fire Science and Engineering
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• v.27 no.6
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• pp.115-121
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• 2013

Industrial facilities are becoming bigger and more up to date, And a kind of the hazardous material used in the industrial filed is diversified. Therefore, serious accidents such as leakage of toxic materials, fire and explosion, is continuously occurred. There is Process Safety Management (PSM) system of the several preventive systems, but it is supposed to be a limitation to ensure safety or huge PSM industrial sites where have potential to catastrophically invisible and unexpected risks because it is still being managed by instruction and inspection of authority having jurisdiction other than self-regulating management differing from the primarily aim of PSM system. To verify safety management system of work-place, supplementation of existing system is urgently required. In this study, it suggests that PSM self-audit be emphasized significantly analyzing problems of the current systems for enhancing self-audit be emphasized significantly analyzing problems of the current systems for enhancing self-control safety through efficient self-audit management and improving the existing system and improving the existing as verifying the system there of, as well as studying methods which can support institutionally.

• Knowledge Management Research
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• v.19 no.2
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• pp.163-185
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• 2018

In order to solve problems in an uncertain and complicated management environment of the modern world, a creative solution that combines diverse perspectives, knowledge, and effort based on diversity within an organization is required. Smart work environment provides an opportunity to express the potential diversity of an individual, extending the source of ideas to the organization, enhancing communication, and linking and sharing information and knowledge. So, this results in increased creative behavior. The purpose of this study is to investigate the effect of the process of connecting and sharing information and knowledge of organizational members on creative behavior and the effect of smart work environment in the process. The purpose of this study is to identify roles of job autonomy, self-efficacy, knowledge sharing and smart work environment in creative process. For the study, 353 surveys with work use group(156 people) and unused group(197 people). Statistical analysis included validity and reliability analysis, structural model analysis. The results showed that self-efficacy and job autonomy had positive effects on creative behavior and knowledge sharing, and job autonomy had a positive effect on self-efficacy. Knowledge sharing has a positive effect on creative behavior, and mediates the relationship between self-efficacy, job autonomy and creative behavior. Particularly, knowledge sharing has a more positive effect on smart work use group. In case of smart work use group, self-efficacy and job autonomy have a relatively high influence on knowledge sharing rather than direct influence on creative behavior appear. This result implies that the achievements of smart work are revealed in terms of knowledge sharing and creative behavior.

• The Journal of the Korea Contents Association
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• v.10 no.10
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• pp.274-285
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• 2010

In the United States, a marked emphasis on personal achievement has been among enduring values characterizing American culture from the beginning of the republic. Particularly, Americans have attached great value to the spirit of self-reliance in striving for personal achievement. However, there have been few empirical studies focusing on the effects of Americans' self-reliant spirit on American electoral politics. Through a field experimentation focusing on the voters of Portage County in Ohio, this study examined the effects of Americans' self-reliant spirit on the evaluations of presidential candidates' personal traits, which constitute the candidates' character. The results of this study demonstrated that American voters evaluated those presidential candidates who were described as self-reliant significantly more favorably than the presidential candidates who were not so described, for 8 out of the 11 personal traits. The findings provide meaningful evidence for ascertaining the potential and legitimacy of the influences of the spirit of self-reliance, in the American society including electoral politics.

• The Korean Journal of Community Living Science
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• v.21 no.3
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• pp.427-439
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• 2010

This study aimed to investigate the potential of Art Therapy to be part of Liberal Arts programs for university students. The study is based on the examination of the effect after the program. The program was combined with Art Therapy theory and with a practical part for students to have a psychological understanding of self development(ego-identity, self-esteem and interpersonal relationship). The subjects were 38 students who were registered in the Art Therapy course at N university. It was a two hour-course and was offered every week. The first 40 minutes of the class were used for explaining Art Therapy theory, and the last 80 minutes were given for practice. To analyze the effect of the program, the index of ego-identity, the index of self-esteem and the index of interpersonal relationship were used. Frequency, percentage and standard deviation were calculated with SPSS 12.0, and a paired t-test was followed. According to the results, this art therapy program has an effect on the subjectivity and future-confidence of students, which includes the sub-categories of self-identity. However, there was no effect found in the category of self-esteem. Comprehension, which is under the interpersonal relationships category, showed statistically meaningful differences after the program was done. Based on this study, it was revealed that Art Therapy as a part of the Liberal Arts programs, which incorporates a large number of students, can have a similar effect on people compared to the Group Art Therapy, which incorporates a relatively smaller number of people.