Heesu Park;Seok Ho Baek;Seokwon Lee;Myeong-jin Lee
Journal of Advanced Navigation Technology
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v.27
no.3
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pp.306-313
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2023
Realistic and graphics-based virtual reality content is based on 360-degree videos, and viewport extraction through the viewer's intention or automatic recommendation function is essential. This paper designs a viewport extraction system based on multiple object tracking in 360-degree videos and proposes a parallel computing structure necessary for multiple viewport extraction. The viewport extraction process in 360-degree videos is parallelized by composing pixel-wise threads, through 3D spherical surface coordinate transformation from ERP coordinates and 2D coordinate transformation of 3D spherical surface coordinates within the viewport. The proposed structure evaluated the computation time for up to 30 viewport extraction processes in aerial 360-degree video sequences and confirmed up to 5240 times acceleration compared to the CPU-based computation time proportional to the number of viewports. When using high-speed I/O or memory buffers that can reduce ERP frame I/O time, viewport extraction time can be further accelerated by 7.82 times. The proposed parallelized viewport extraction structure can be applied to simultaneous multi-access services for 360-degree videos or virtual reality contents and video summarization services for individual users.
Although education using teaching tools is important to both students and teachers, the quality problem of distributed teaching tools is constantly being raised. Therefore, the purpose of this study is to analyze the teaching tools by classifying them into three quality factors, and to confirm the satisfaction and repurchase intentions of elementary school teachers. This study was conducted by dividing the first CIT survey and the second survey targeting incumbent elementary school teachers, and the PLS statistical program was used as an analysis tool. Through empirical analysis, it was analyzed that product quality, educational quality, and service quality had a positive (+) effect on teacher satisfaction, and that teacher satisfaction had a positive (+) effect on repurchase intention. Through this, it gives teachers insight into what they should focus on when purchasing or evaluating teaching tools and how to use them usefully for education, and for researchers, it provides an important clue to research for product quality improvement, and for companies that produce and distribute teaching tools, it gives to effective guidelines for the development of new products and contents. In the future, in addition to the relationship between the teaching tools and teachers, additional research on the organic relationship between the teaching tools and various objects is needed, and this is suggested as a future study.
Kim, So-Ye;Baek, Won-Jin;Kim, Hyeon-Gyeong;Han, Chae-Jeong
Journal of Convergence for Information Technology
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v.12
no.3
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pp.222-235
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2022
The Government provides a financial assistance to stimulate firm R&D and innovation activities. Previous papers on the impact of public subsidies on firm R&D investments mainly had a focus on an individual policy tool regardless of potential impacts of other policy instruments. This study addresses this gap by examining the effects of policy mix regarding a subsidy and a tax credit. The empirical analyses from fixed effect model using Survey on Technology of SMEs 2015-2017 revealed valuable points. First, policy mix induces more R&D investment of SMEs, which in turn, shows a complementary relationship between two instruments. Second, even if impact of tax credit controlled, subsidy is positively associated with SMEs R&D investment. These findings justify policy mix interventions to promote SME R&D activity. Moreover, grants can be applied as a more useful policy tool for SMEs that are constrained by resources and capabilities.
Purpose - This study aims to examine different impacts of franchisor's leadership and franchisee's marketing efforts on franchisee dissatisfaction and switching intentions, and to investigate how franchisee dissatisfaction plays a mediating role in the relationship between these constructs. This study attempted to fill the gap in the literature by treating the franchisee dissatisfaction as a mediator in the relationship between these constructs, identify how franchisor's leadership and franchisee's marketing efforts have effects on franchisee dissatisfaction, in turn, reduce switching intentions, and provide the managerial implications for building a long-term relationship to achieve mutual goals between franchisors and franchisees Research design, data, and methodology - In order to test the hypotheses, the data were collected from franchisees in Seoul and Gyeonggi Province. The franchisee owners were informed about the purpose of this study by the trained interviewers. The respondents received a letter introducing the purpose of this study and another letter that the owners wrote to encourage their active participation. Among the 300 questionnaires distributed, 260 (86.7%) questionnaires were returned. Of those collected questionnaires, 6 uncompleted responses were excluded, and 254 questionnaires with an effective response rate of 84.7% were coded and analyzed using frequency, confirmatory factor analysis, and correlations analysis, and structural equation modeling with SPSS 21.0 and SmartPLS 3.0. Results - The findings of the study are as follows. First, franchisor leadership had a negative effect on franchisee dissatisfaction, but franchisee marketing efforts did not have a significant effect on franchisee dissatisfaction. Second, franchisee dissatisfaction had a positive effect on switching intentions. Third, franchisor leadership had a negative effect on switching intentions, but franchisee marketing efforts did not have a significant effect on switching intentions. Conclusions - This study researched the franchisor's leadership as a single factor of transformational leadership. Thus, it may have limits in measuring leadership. Future studies shall include emotional, loyal, and transactional leadership. In addition, the future studies shall also research the effect of franchisor's leadership and franchisees' marketing efforts on dissatisfaction and switching intentions. For example, the franchisor's relationship-oriented efforts can be a crucial parameter that reduces dissatisfaction and switching intentions.
Objective : In this study, we conducted a questionnaire survey of occupational therapists to examine their perceptions on and willingness to provide telerehabilitation dementia prevention education. Methods : From March 13 to 19, 2021, a questionnaire survey targeting occupational therapists in Busan, Ulsan, and Gyeongnam was conducted. 100 questionnaires were distributed but only 70 were collected. The collected data were subjected to frequency analysis and descriptive statistics using the statistical program SPSS version 23.0. Results : The average scores by region were as follows. The average compatibility score was highest at 3.92 score, intention to providing education, doctors 3.89 score, community-centric rehabilitation awareness 3.81 score, cost saving 3.78 score, perceiver usefulness 3.75 score, accessibility 3.62 score, the quality of telerehabilitation service was in order of 3.49 score. Conclusion : All items asking whether occupational therapists participate in community-centered rehabilitation and non-face-to-face dementia prevention education programs showed high scores, indicating the willingness to participate actively. In the future, in addition to follow-up research on the implementation of telerehabilitation dementia prevention education, measures for improving accessibility within the local and national government should be discussed.
Mun, Seong Min;Han, Hyun Woo;Ha, Hyo Ji;Lee, Kyung Won
Design Convergence Study
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v.13
no.6
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pp.137-152
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2014
In considering the overheated competition amongst social commerce, it is imperative to determine which parts of the social commerce service are considered important by consumers, and which parts need improvements to sustain relationship between consumers and the corporation. Therefore, this research has identified the motives for usages of consumers as affordability, convenience, information acquisition, pleasure, and sociability, and set satisfaction as a factor that works as a medium between previously mentioned motives and willingness to repurchase to identify factors that affect willingness to repurchase and factors that affect positively. Additionally, to identify significant results that have not been identified in statistical analysis. The experiment was conducted on those who have experienced purchase on social commerce or are currently using social commerce. The survey was created based on prior research, and has representativeness as a sample were conducted empirical analysis and visualization analysis. As the research result, the result that satisfaction causes are in close relationship with causes for repurchase, and affordability has the most positive effect among the five motives for usage were deducted, and the conclusion that the relationship among data are easily deducted when statistic analysis and visual analysis are carried out at the same time was postulated.
The object of this thesis is to consider the meaning of sincerity(誠), reverence(敬) and faith(信) through Cha gyungseok's historical record. Cha gyungseok(車京石, 1880-1936) is a key disciple of Kang Jeungsan Sangjenim(姜甑山, 1871~1909) to whom Cha kyungseok has begun to follow since 1907, completing his wandering around Yeonghak-gye(英學契), Iljin-hoe(一進會) and Cheondo-gyo(天道敎) after the loss of his father[Cha Jikoo(車致九), 1851-1894] in Tonghak peasants revolution. To examine the meaning of sincerity, reverence and faith as cardinal points in Daesoonjinrihoe(大巡眞理會) creed, this research has taken note of Cha kyungseok's sincerity, reverence and faith who is said to be thought of himself as a head of Reconstruction Work for the Tonghak spitit's resolution of grievances, despite the Sangjenim's intention of using him for different usage due to his sincerity, reverence and faith. Especially, emphasis was given to the illumination of Cha gyungseok's change of sincerity, reverence and faith through closely reviewing his life prior to the encounter with Sangjenim, the process of following Sangjenim and his whereabouts after the ascension of Sangjenim. In addition, through Jeonkyeong(典經), this research also examines Cha kyeong seok's sincerity, reverence and faith along with his ambition contained in that sincerity, reverence and faith. Up to his ascension, Sangjenim has never saved his advice on Cha gyungseok's ambition. Leaving Sangjenim's advice behind, Cha gyungseok moves on to become a head of the Reconstruction Work for the Tonghak spitit's resolution of grievances without deserting the dream of being the Son of Heaven. Although, he showed his prowess as a religious sect leader called Bocheon-gyo boasting its 6 million believers and as a provisional emperor of the country named Sikuk, he ends his life as a head for the Resolution of grievances of kings, princes, generals and premiers due to the change of faith on Sangjenim and interruption of Japanese Imperial Government, without accomplishing his dream. The feature of past disciples suggests the direction of cultivation for our cultivators. Through Cha gyungseok's sincerity, reverence and faith, we could look back upon the meaning of sincerity, reverence and faith and conclude that a real sincerity, reverence and faith is the heart-mind trying to participate in Reconstruction Work of Heaven and Earth with a pure mind, contrary to the one coming out of greed.
The Journal of Korean Academy of Sensory Integration
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v.21
no.2
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pp.35-44
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2023
Objective : This study sought to explore occupational therapy students' awareness of Developmental Rehabilitation Services (DRSs) and the certification of Sensory Developmental Rehabilitation Service Providers (SDRSPs). Moreover, it also aimed to examine the differences in students' awareness based on general characteristics. The findings were intended to provide a foundation for research on sensory developmental rehabilitation. Methods : An online survey was conducted among 199 occupational therapy students nationwide from October 4 to November 5, 2022. Frequency analysis was used to assess the general characteristics and additional items. Both descriptive statistics and frequency analysis were employed to assess the students' awareness of DRSs and SDRSP certification. Any differences in the students' awareness based on their general characteristics were examined using t-tests and an analysis of variance. Results : The students' awareness of DRSs was moderate (4.50 ± 2.40), while their awareness of SDRSP certification was also moderate (4.22 ± 2.55). The awareness of DRSs varied significantly based on the students' academic year and child-related practice experience. Similarly, the awareness of SDRSP certification differed significantly based on the students' academic program, academic year, recognition by the related department, and child-related practice experience. Conclusion : The occupational therapy students expressed a strong intention to provide DRSs and become certified as SDRSPs. However, their awareness levels were moderate. These findings emphasize the importance of educational efforts and the provision of relevant information about DRSs and SDRSP certification in universities to foster the development of competent SDRSPs.
Due to recent demographic changes, employees from diverse generations now work together in organizations. Thus, there is a need for research on intergenerational cooperation. However, the lack of valid and reliable measures to capture intergenerational climate in the workplace is an obstacle to research. Therefore, we translated the Workplace Intergenerational Climate Scale(WICS) into Korean and validated it with a sample of 1,052 Korean full-time employees. Firstly, we conducted an exploratory factor analysis by using sample 1(N = 460) and revealed a five-factor solution. Secondly, the confirmatory factor analysis(sample 2; N = 592) showed a good model fit of the correlated five-factor model. Thirdly, the scale's discriminant and convergent validity was supported by negative correlations with four types of existing ageism scales and by positive correlations with trust, organizational commitment, work engagement, psychological safety, intention to remain, job satisfaction, and communication satisfaction. Moreover, it further demonstrated significant incremental validity in predicting positive outcome variables even when controlling for pre-existing agism scales. Lastly, we confirmed strict measurement invariance of the scale between the age groups(below 40 versus above 40). The findings support the reliability and validity of the Korean version of WICS among Korean employees. The scale will be broadly applied to measure intergenerational climate of organizations and provide practical implications for HR management.
This study examines Korean representation of the biotechnology and psychological factors which can influence lay people's perception and attitude about biotechnology. Korean college students(N=433) and lay adults(N=90) whom had college education participated in the study. Participants of the study 1 were asked to list words which comes to mind when associate with the biotechnology in broad sense, and several specific applications in health, medicines, agriculture and research. Participants of the study 2 were asked to list possible benefits and costs of biotechnology and their specific applications. In study 3, Participants responded the questionnaires about perceptions and attitudes of biotechnology. Korean people associated the biotechnology with its costs or risks and benefits. Korean college students mainly got the informations of the biotechnology from TV, newspapers, or internet. They trusted the scientist group and NGO group on their judgements about the assessment of risk and benefit of the biotechnology. College students showed the positive attitude with the applications in medicines and negative attitude with the applications in agriculture and public using of individual's genetic information. The radicalism, sensitivity in behavioral activation system, and trust/cynicism were to be found as a significant influencing factor for interest/knowledge and behavioral intention in related with biotechnology. Finally, more extensive knowledge of biotechnology did not lead to greater acceptance of it.
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