• The Journal of the Korea Contents Association
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• v.16 no.4
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• pp.23-35
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• 2016

This study investigates the effects of authentic leadership and organizational supports on the organizational citizens behavior of public welfare facility employee. Structural equation model with four latent variables were constructed to test the hypothetical relationships between variables. Out of 230 people from welfare facilities in Yong-in City were sampled and 216 were answered the questionnaire. Results suggests that authentic leadership and organizational support perceptions were shown to have a positive(+) significant effects on the job engagement and organizational citizenship behavior. Authentic leadership and perceived organizational support are effected as a direct positive effect on job engagement, and the influence of perceived organizational support was recognized as greater fact than the authentic leadership. Variable 'job engagement' took a intermediating role between two independent variables and organizational citizenship behavior. Based on the hypothesis test results we might conclude that welfare facility employee whose task require emotional engagement need to be supported by systematic plan of material resources.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.25 no.6_1
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• pp.545-555
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• 2007

3D buildings are the most prominent feature comprising urban scene. A few of mega-cities in the globe are virtually reconstructed in photo-realistic 3D models, which becomes accessible by the public through the state-of-the-art online mapping services. A lot of research efforts have been made to develop automatic reconstruction technique of large-scale 3D building models from remotely sensed data. However, existing methods still produce irregular building polygons due to errors induced partly by uncalibrated sensor system, scene complexity and partly inappropriate sensor resolution to observed object scales. Thus, a geometric regularization technique is urgently required to rectify such irregular building polygons that are quickly captured from low sensory data. This paper aims to develop a new method for regularizing noise building outlines extracted from airborne LiDAR data, and to evaluate its performance in comparison with existing methods. These include Douglas-Peucker's polyline simplication, total least-squared adjustment, model hypothesis-verification, and rule-based rectification. Based on Minimum Description Length (MDL) principal, a new objective function, Geometric Minimum Description Length (GMDL), to regularize geometric noises is introduced to enhance the repetition of identical line directionality, regular angle transition and to minimize the number of vertices used. After generating hypothetical regularized models, a global optimum of the geometric regularity is achieved by verifying the entire solution space. A comparative evaluation of the proposed geometric regulator is conducted using both simulated and real building vectors with various levels of noise. The results show that the GMDL outperforms the selected existing algorithms at the most of noise levels.

• Journal of Microbiology and Biotechnology
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• v.24 no.11
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• pp.1551-1558
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• 2014

The esterase gene Est8 from the thermophilic bacterium Bacillus sp. K91 was cloned and expressed in Escherichia coli. The monomeric enzyme exhibited a theoretical molecular mass of 24.5 kDa and an optimal activity around $50^{\circ}C$ at pH 9.0. A model of Est8 was constructed using a hypothetical YxiM precursor structure (2O14_A) from Bacillus subtilis as template. The structure showed an ${\alpha}/{\beta}$-hydrolase fold and indicated the presence of a typical catalytic triad consisting of Ser-11, Asp-182, and His-185, which were investigated by site-directed replacements coupled with kinetic characterization. Asp-182 and His-185 residues were more critical than the Ser-11 residue in the catalytic activity of Est8. A comparison of the amino acid sequence showed that Est8 could be grouped into the GDSL family and further classified as an SGNH hydrolase. Est8 is a new member of the SGNH hydrolase subfamily and may employ a different catalytic mechanism.

• Korean Educational Research Journal
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• v.37 no.1
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• pp.47-66
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• 2016

The purpose of this study is to examine the analysis on the effect of incentive gap of teacher's merit-pay on organizational commitment and organizational citizenship behavior. The study verified the hypothetical path model and analyzed the effects of incentive gap of teacher's merit-pay, organizational commitment and organizational citizenship behavior. The subjects of the study are 762 elementary and secondary school teachers. The results of the study are as follows: Firstly, it was found that there are significant correlations among incentive gap of teacher's merit-pay, organizational commitment and organizational citizenship behavior. Secondly, incentive gap of teacher's merit-pay affects organizational commitment and organizational citizenship behavior. Lastly, S grade teachers of teacher's merit-pay are more organizational commitment and organizational citizenship behavior level were higher than A and B grade teacher. Therefore teacher's merit-pay have positive impacts to the teachers.

• Spatial Information Research
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• v.16 no.2
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• pp.157-171
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• 2008

With emerging technologies on wireless networks and mobile computing environment, a number of researches have been carried out for ubiquitous computing. An important functional requirement of ubiquitous computing is to handle location data with ease. With the increase of accidents in large complex buildings. move attention is being paid to indoor spaces and evacuation. However, most currently used evacuation-related applications are simulation based on hypothetical data. Also, since they use non-georeferenced CAD data, it is not easy to integrate them with indoor positioning devices. With the recent progress of indoor positioning systems, the simulators can be enhanced to real-time evacuation systems. As a preliminary stage to make such systems possible, this study proposes using a georeferenced data and evacuation simulation. This study used GIS data and Cellular Automata theory an the algorithm for the movement of the evacuee.

• Journal of Radiation Protection and Research
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• v.41 no.4
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• pp.368-372
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• 2016

Background: Methodologies for a series of radiological consequence assessments show a distinctive difference according to the design principles of the original nuclear suppliers and their technical standards to be imposed. This is due to the uncertainties of the accidental source term, radionuclide behavior in the environment, and subsequent radiological dose. Both types of PWR and PHWR are operated in Korea. However, technical standards for evaluating atmospheric dispersion have been enacted based on the U.S. NRC's positions regardless of the reactor types. For this reason, it might cause a controversy between the licensor and licensee of a nuclear power plant. Materials and Methods: It was modelled under the framework of the NRC Regulatory Guide 1.145 for light-water reactors, reflecting the features of heavy-water reactors as specified in the Canadian National Standard and the modelling features in MACCS2, such as atmospheric diffusion coefficient, ground deposition, surface roughness, radioactive plume depletion, and exposure from ground deposition. Results and Discussion: An integrated accident consequence assessment code, ACCESS (Accident Consequence Assessment Code for Evaluating Site Suitability), was developed by taking into account the unique regulatory positions for reactor types under the framework of the current Korean technical standards. Field tracer experiments and hand calculations have been carried out for validation and verification of the models. Conclusion: The modelling approaches of ACCESS and its features are introduced, and its applicative results for a hypothetical accidental scenario are comprehensively discussed. In an applicative study, the predicted results by the light-water reactor assessment model were higher than those by other models in terms of total doses.

• Journal of Korean Critical Care Nursing
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• v.11 no.1
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• pp.89-100
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• 2018

Purpose : The purpose of this study was to analyze factors influencing the adherence to guidelines for intensive care unit (ICU) nurses to control infections due to multidrug-resistant organisms (MDRO). Method : Participants were 194 ICU nurses at 3 university hospitals. Questions for the survey inquired about attitude, subjective norms, perception of patient safety culture to carry out MDRO management guidelines, perceived behavior control (PBC), and intention, based on the theory of planned behavior. Path analysis were utilized. Results : The path analysis presented that PBC, perception of patient safety culture, and intent had a direct effect on MDRO management guidelines. Attitude towards following the manual did not have any correlation. The hypothetical model based on the theory of planned behavior was revealed as applicable; the degree of the variance in explaining adherence to the manual was 23 %, and the variance in explaining intention to fulfill the manual was 33 %. Conclusion : The results of this study suggest that we should develop a program to improve PBC to increase adherence to MDRO management guidelines. ICU nurses' perceptions of patient safety culture should also be surveyed.

• Journal of The Korean Association of Information Education
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• v.14 no.3
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• pp.341-353
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• 2010

The purpose of the present study is to verify the structural relationship among on-line task value, university support, satisfaction, learning persistence in Cyber University. For this study, W cyber university in Korea was chosen to conduct web survey. A hypothetical model was proposed, which was composed of on-line task value, university support as exogenous variables, satisfaction, learning persistence as endogenous variables. And satisfaction have been suggested as intervening endogenous variables. The result of this study is as follows: First, on-line task value and university support affect satisfaction. Second, university support and satisfaction affect learning persistence. Lastly, satisfaction mediated on-line task value, university support and learning persistence.

• Journal of Global Scholars of Marketing Science
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• v.16 no.4
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• pp.13-38
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• 2006

This study is concerned with the factors that influence the radicalness of new product development by firms. The innovativeness of firms' new product development differs in their frequency and radicalness. Based on previous research on product innovations, this study provides a hypothetical model that links firms' internal variables and external relations variables to the radicalness of product innovation, which in turn is linked to marketing performance. For an empirical analysis, the data were collected from South Korean firms. The result of this study provides evidence that the stronger is firms' management attitude toward risk taking, marketing competency, and technical competency, the higher is the possibility of radical product innovation. It also shows that, contrarily to the hypothesis, firms with collective reward system rather than individual reward system are more likely to develop radically new products. This study also shows that the better are firms' R & D collaboration with suppliers and interfaces with customers, the higher is the possibility of radical product innovation.

• Journal of Digital Convergence
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• v.17 no.12
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• pp.329-336
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• 2019

This study is a descriptive research study that examines the level of terminal care nursing care and the effects on terminal nursing in the internal and external control beliefs of nurses in the nursing geriaic hospital.. The subjects consisted of 442 nurses, and data were collected through structured questionnaires.. The data were analyzed with descriptive that used SPSS WIN 22.0, and AMOS 5.0 statistical program was hypothetical model and path analysis of research hypothesis. As a result, terminal care of geriatric hospital nurses was statininificant to the terminal care stress, fatigue and locus of internal & external control. and the higher the internal control belief, the less stress of the terminal care and the higher the terminal care performance As a result, this study providers a more terminal care performance, It is considered that nursing hospital nurses who develop strategic programs and terminal care nursing will need to provide quality nursing education and work environment improvement.