• Journal of the Korean Association of Geographic Information Studies
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• v.15 no.1
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• pp.87-98
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• 2012

A river boundary is defined as the intersection between a main stream of a river and the land. Mapping of the river boundary is important for the protection of the properties in river areas, the prevention of flooding and the monitoring of the topographic changes in river areas. However, the utilization of the ground surveying technologies is not efficient for the mapping of the river boundary due to the irregular surfaces of river zones and the dynamic changes of water level of a river stream. Recently, the spatial information data sets such as the airborne LiDAR and aerial images are widely used for coastal mapping due to the acquisition of the topographic information without human accessibility. Due to these advantages, this research proposes a semi-automatic method for mapping of the river boundary using the spatial information data set such as the airborne LiDAR and the aerial photographs. Multiple image processing technologies such as the image segmentation algorithm and the edge detection algorithm are applied for the generation of the 3D river boundary using the aerial photographs and airborne topographic LiDAR data. Check points determined by the experienced expert are used for the measurement of the horizontal and vertical accuracy of the generated 3D river boundary. Statistical results show that the generated river boundary has a high accuracy in horizontal and vertical direction.

• Journal of Ecology and Environment
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• v.29 no.5
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• pp.453-460
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• 2006

Upo wetland is the largest inland wetland in Korea as Ramsar Convention Area. The purposes of the study were to investigate the levels of heavy metals (Cd, Cr, Cu, Ni, Pb and Zn) in the sediment and Cipangopaludina chinensis malleata from three sites of the wetland and to assess the potential of the gastropod as a bioindicator for heavy metal levels. The gastropods were dissected into shell and soft tissue without the digestive and excretive organs. The levels of Cd, Cu and Pb were below the guideline of Soil Environment Conservation Act and the heavy metals except Cr were slightly different among the sites. Cd was higher in Upo site ($0.32{\mu}g/g$) than Sajipo site ($0.28{\mu}g/g$). Cu and Zn showed the highest value in Sajipo as $43.5{\mu}g/g\;and\;39.8{\mu}g/g$, respectively while the concentrations of Pb and Zn were the highest in Upstream as $58.8{\mu}g/g\;and\;138{\mu}g/g$, respectively. In the soft tissues and shells of the gastropod, the overall common trend in the concentrations of the heavy metals was revealed with the following order: Zn > Cu > Cr > Ni > Pb > Cd and Ni > Zn > Cr > Cu > Pb > Cd, respectively. Although the soft tissues exhibited higher concentrations of the heavy metals except Ni than the shell in the gastropod, the levels of Cd and Pb in the gastropod were generally below the restrictive values set up by Korea Food & Drug Administration. From Duncan's Multiple Range Test (DMRT) results, the concentrations of Pb and Zn in the sediments among the sites were reflected on the soft tissue (Pb) and the shell (Pb and Zn) of the gastropod in the same order. The lower value of coefficient of variation (CV) in Pb concentration of the shell than in that of the soft tissue supports the usefulness of the shell as a bioindicator for Pb pollution. Although the CV value in the shell was a little higher than in the soft tissue, DMRT results and the stability of incorporated Zn into the shell support the use of the shell of the gastropod as a potential bioindicator for long-term contamination of Zn.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2011.06a
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• pp.89-90
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• 2011

The purposes of this study were to analyze the effects of a marine leisure exhibition event(MLEE)'s appraisal attributes on visitors' satisfaction and repurchase behavior and thus provide fundamental information that facilitates developing effective marketing and operational strategies for a MLEE. In order to accomplish such purposes, this study employed a survey with a total of 300 visitors to a MLEE hosted by G Province. Questionnaires were developed on the basis of related studies and modified to reflect the study context. Then, such questionnaires were verified to be valid and reliable through content validity, exploratory factor analysis and internal consistency analysis. Valid 286 questionnaires were analyzed with correlation analysis and multiple regression analysis on significance level of .05. Following findings were derived from current study. First of all, the appraisal attributes of a MLEE had a significant effect on visitors' satisfaction and among them only the factor of event program had a unique relation with the levels of satisfaction. In addition, the appraisal attributes of the MLEE also had a significant effect on visitors' repurchase behavior and among them event program, transportation and employee factors had unique relations with the performance variable in order. In conclusion, all the research hypotheses that had been set up through previous studies were confirmed in this study.

• Korean Journal of Social Welfare
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• v.69 no.2
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• pp.191-218
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• 2017

The purpose of this study was to examine the effect of the possibility of job-related risk, emotional labor, and emotional leadership on the job turnover intention of caregivers working at the long-term care facilities in Korea. For the study, survey data of 434 caregivers at senior nursing homes were collected and analyzed using hierarchical multiple regression method. The results showed that high level of caregivers'perception of both the possibility of management risk and employee risk led to increased turnover intention. On the other hand, perception of the possibility of social-disaster risk did not give significant impact on turnover intention. Although the perception of the possibility of service user risk gave statistically significant effect on the turnover intention, the direction was the opposite to the one set at the research hypothesis. Frequent camouflage behavior("surface acting") of caregivers, which is the kind of emotional labor led to increased turnover intention. However, caregivers'behavior consistent with their inner warm heart("deep acting") did not lead to a statistically significant result. Lastly, the more caregivers perceive their superiors'emotionally supportive leadership, the lower possibility of turnover intention. Based on the above result, the researchers suggested several intervention methods in order to prevent turnover of caregivers and improve service quality of long-term care institutions.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.3
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• pp.1301-1312
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• 2013

The purpose of this study was to examine the relationship of the critical thinking disposition of paramedic students to their satisfaction with hospital clinical practice and intention of recommendation. As for data analysis, the statistical packages SPSS WIN 20.0 and AMOS 20.0 were employed, and frequency analysis, factor analysis, multiple regression analysis and structural equation modeling were utilized. Besides, Cronbach alpha coefficients were calculated to check item internal consistency. The level of significance was all set at .05. A survey was conducted to collect data from May 12 to August 25, 2012, and the answer sheets from 305 respondents were gathered and analyzed. The critical thinking disposition of the paramedic students was found to have a significant impact on their satisfaction with clinical practice, and the hypothesis about that was accepted. Their critical thinking disposition was found to exert a significant influence on their intention of recommendation as well, and the hypothesis about that was accepted. Finally, their satisfaction with clinical practice was found to affect their intention of recommendation in a significant way, and the hypothesis about that was accepted. The findings of the study suggested that in order to nurture professional and competent paramedics, the content of clinical practice should systematically be managed on a regular basis, and prolonged research efforts should be directed into program development.

• Asia pacific journal of information systems
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• v.20 no.1
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• pp.33-56
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• 2010

The current business environment has been characterized as less munificent, highly uncertain and constantly evolving. In this environment, the company with dynamic capability is reported to be more successful than others in building competitive advantage. Dynamic capability focuses on the link between a dynamically changing environment, strategic agility, architectural reconfiguration, and value creation. Being characterized to be flexible and adaptive to market circumstance changes, an organization with dynamic capability is described to have high resource fluidity, which represents business process, resource allocation, human resource management and incentives that make business transformation faster and easier. Successful redeployment of the resources for dynamic adaptation requires organizational forms and reward systems to be well aligned with firm's technological infrastructures and business process. The alignment is considered to be an executive level commitment. Building dynamic capability is knowledge driven; relying on new knowledge to reconfigure firm's resources. Past studies established the link between the effective execution of a knowledge-focused strategy and relevant setting of architectural elements such as human resources, structure, process and information systems. They do not, however, describe in detail the underlying processes by which architectural elements are adjusted in coordinated manners to build knowledge-driven dynamic capability. In fact, understandings of these processes are one of the top issues in IT management. This study analyzed how a Korean corporation with a knowledge-focused strategy aligned its architectural elements to develop the dynamic capability and thus create value in the dynamically changing markets. When the Korean economy was in crisis, the company implemented a knowledge-focused strategy, restructured the organization's architecture by which human and knowledge resources are identified, structured, integrated and coordinated to identify and seize market opportunity. Specifically, the following architectural elements were reconfigured: human resource, decision rights, reward and evaluation systems, process, and IT infrastructure. As indicated by sales growth, the reconfiguration helped the company create value under an extremely turbulent environment. According to Ancona et al. (2001), depending on the types of lenses the organization uses, different types of architecture will emerge. For example, if an organization uses political lenses focusing on power, influence, and conflict. the architecture that leverage power and negotiate across multiple interest groups would emerge. Similarly, if an organization uses economic lenses focusing on the rational behavior of organizational actors making choices based on the costs and benefits of action, organizational architecture should be designed to motivate and provide incentives for the actors (Smith, 2001). Compared to this view, information processing perspectives consider architecture to be designed to maximize the capacity of information processing by the actors. Using knowledge lenses, the company studied in this research established architectural elements in a manner that allows the firm to effectively structure knowledge resources to form dynamic capability. This study is revelatory single case with a historic perspective. As a result of this study, a set of propositions and a framework are derived, which can be used for architectural alignment.

• Journal of Internet of Things and Convergence
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• v.7 no.3
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• pp.81-90
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• 2021

In this study, the effect of user characteristics and technical characteristics of a blockchain-based financial platform on the intention to use of financial consumers was analyzed. Also, in this influence relationship, we analyzed what kind of causal relationship between relative advantage and perceived risk on intention to use. From June 1 to July 30, 2021, a non-face-to-face self-filling online survey was conducted with a sample of subjects who had experience using a financial platform grafted with blockchain technology, and the study was conducted in 187 copies. For statistical processing, frequency analysis, exploratory factor analysis, reliability analysis, correlation analysis, multiple regression analysis and 3-step mediated regression analysis were performed using SPSS 21.0 program. The significance level of the statistical value was set to less than 95%. The research results are as follows. First, it was found that innovativeness and usefulness affect the intention to use in the user characteristics. Second, in the technical characteristics, compatibility and reliability were found to affect the intention to use. Third, it was found that relative advantage and perceived risk play a partial mediating role in the relationship between user characteristics and intention to use. Fourth, it was found that relative advantage and perceived risk play a partial mediating role in the relationship between technical characteristics and intention to use. Fifth, it was found that there were differences in the ubiquity of user characteristics, compatibility of technical characteristics and intention to use according to the experience of using the certificate. The results of this study can contribute to the development of a financial platform based on the Internet of Things.

• Asian-Australasian Journal of Animal Sciences
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• v.32 no.10
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• pp.1501-1510
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• 2019

Objective: An experiment was conducted to evaluate genetic diversity of 26 Chinese indigenous goats by 30 microsatellite markers, and then to define conservation priorities to set up the protection programs according to the weight given to within- and between-breed genetic diversity. Methods: Twenty-six representative populations of Chinese indigenous goats, 1,351 total, were sampled from different geographic regions of China. Within-breed genetic diversity and marker polymorphism were estimated calculating the mean number of alleles, observed heterozygosities, expected heterozygosities, fixation index, effective number of alleles and allelic richness. Conservation priorities were analyzed by statistical methods. Results: A relatively high level of genetic diversity was found in twenty-four population; the exceptions were in the Daiyun and Fuqing goat populations. Within-breed kinship coefficient matrices identified seven highly inbred breeds which should be of concern. Of these, six breeds receive a negative contribution to heterozygosity when the method was based on proportional contribution to heterozygosity. Based on Weitzman or Piyasatian and Kinghorn methods, the breeds distant from others i.e. Inner Mongolia Cashmere goat, Chengdu Brown goat and Leizhou goat obtain a high ranking. Evidence from Caballero and Toro and Fabuel et al method prioritized Jining Gray goat, Liaoning Cashmere goat, and Inner Mongolia Cashmere goat, which agree with results from Kinship-based methods. Conclusion: Conservation priorities were determined according to multiple methods. Our results suggest Inner Mongolia Cashmere goat (most methods), Jining Gray goat and Liaoning Cashmere goat (high contribution to heterozygosity and total diversity) should be prioritized based on most methods. Furthermore, Daiyun goat and Shannan White goat also should be prioritized based on consideration of effective population size. However, if one breed can continually survive under changing conditions, the straightforward approach would be to increase its utilization and attraction for production via mining breed germplasm characteristics.

• 재활복지
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• v.22 no.1
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• pp.27-49
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• 2018

The purpose of this study was to analyze the relationship between social interaction, role acquisition, and self-identity of people with physical disabilities participating in daily sports. In order to accomplish the purpose of this study, people with physical disabilities residing in Busan, Gyeongnam, and Gyeongbuk were set as a population. Among them, 384 people with physical disabilities participating in daily sports were sampled using convenience sampling. Data were analyzed by frequency analysis, exploratory factor analysis, reliability analysis, multiple regression analysis, and simple regression analysis using the SPSS 23.0 program. The results were as follows. As a result of analyzing the effects of participation level of daily sports for people with physical disabilities on social interaction, role acquisition, and self-identity, first, participation period had a significant effect on ego-identity. Second, participation time did not have a statistically significant effect on social interaction, role acquisition, and self-identity. Third, participation frequency had a significant effect on social interaction, role acquisition, and self-identity. In addition, social interaction, role acquisition, and self-identity showed a statistically significant correlation with positive effects as a result of analyzing the relationship between social interaction, role acquisition, and self-identity.

• Journal of vocational education research
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• v.30 no.4
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• pp.51-67
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• 2011

The expectation and importance for the key competencies education in the university have been greater. Although there have been many various efforts of the university for its social accountability that it should cultivate the qualified person company requires, there is a bit gap between the university education and social demand. Therefore, the purpose of this study was to investigate the perception and demand of students and teachers to the key competencies and then offer a help to develop and operate strategies with which university education can be prepared for the demand of teachers, students and society. In this study, questionnaires on the perception and demand to the key competencies education were developed and responded by 475 students and 58 professors as a subject of this study. The results were analysed using multiple response frequency analysis, cross analysis and t-test. Also the statistical level of significance was set at p<.05 by using SPSS 12.0 for Windows. The results suggested that there were significant differences between the perception and demand of teachers and students to the key competencies education, particularly to the items questioning the degree of difficulty in preparing for future employment, the most important resource from which they can obtain aids, the degree of efforts they put for the key competencies development and employment, and the main factors for the key competencies development and employment. We can expect to offer an implication for the university education based on perception and demand of teachers and students to the key competencies.