• Journal of the Korean Institute of Landscape Architecture
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• v.37 no.6
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• pp.1-11
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• 2010

The purpose of this research is to identify satisfaction levels of the arboretum which will be provided in the Multifunctional Administrative City and to estimate the economic value of using choice experiments. The attributes were "Preservation", "Education", "Recreation", "Facility", "Accessibility" and the entrance fee. The main effects model was utilized to construct hypothetical alternatives. Calibration of the conjoint choice model revealed that 'wetlands' and 'forest trails' in "Preservation" and the "Recreation", respectively, were significant variables. This result indicates that respondents are willing to pay more for these if they are provided in the arboretum. Also, 'variety seeking' tendency, age, and income level positively influenced the provision of the arboretum. Involvement in preservation of natural environment, however, had a negative influence on the establishment of the arboretum. Because this study is the first attempt to estimate the economic valuation of an urban arboretum using choice experiment, there are several suggestions for future research in terms of determining the base level and inclusion of salient attribute levels.

• Journal of Korean Society for Atmospheric Environment
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• v.16 no.3
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• pp.211-223
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• 2000

The atmospheric dispersion of a pollutant emitted from a hypothetical source located in the middle of the Yochon Industrial Estate was simulated by using the Regional Atmospheric Modeling System (RAMS). Four horizontally nested grids were employed: the coarsest one covered the southern part of the Korean Peninsula including Mt. Chiri and the finest one covered the Yochon Industrial Estate and the surrounding area. Wind fields were initially assumed horizontally homogeneous with a wind speed of 4m/s, the average for the Yosu area, and were developed without both external forces and diurnal changes in order to investigate the terrain-induced phenomena. Wind directions that could emphasize the terrain effects on the pollutant transport and that could carry pollutants to a highly-popluated area were selected for the dispersion study. A pollutant was released for 24hours from a grid-base volume source after a 24-h blank run for developing the wind field. The dispersion study showed that the pollutant from the present source location did not directly affect the Yosu City, but showed high concentrations at locations behind the hills 5 to 6 km away from the source according to wind directions. When the wind speed was low, close to calm condition, the pollutant was detected at upstream locations 6 to 7 km from the source. In comparison with the results from the RAMS simulation, the Industrial Source Complex Short-Term Model(ISCST3) predicted a narrow dispersion that was sensitive to the wind direction. When the wind velocity was affected by the local environment, the ISCST3 calculation using that data also gave a lop-sided result, which was different from the distribution of the pollutant reproduced by RAMS.

• Journal of Gifted/Talented Education
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• v.25 no.4
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• pp.529-546
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• 2015

The purpose of the present study was to verify the structural relationship among task commitment, self regulation learning ability, parent support, satisfaction and achievement in gifted education. In this study, factors affecting the performance of gifted education are based on Differentiated Model of Gifted and Talent($Gagn{\acute{e}}$, 2004). Participants attended a 182 student in institutes for the gifted education in the city office of education in Korea. A hypothetical model was proposed, which was composed of task commitment, self regulation learning ability and parent support as exogenous variables; and satisfaction and achievement as endogenous variables. The results of this study are as follows: First, task commitment, self regulation learning ability and parent support had significant effects on gifted education's satisfaction. Second, task commitment and parent support had significant effects on gifted education's achievement.

• 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.

• Hwankyungkyoyuk
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• v.22 no.1
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• pp.83-96
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• 2009

This paper is intended to investigate the awareness of the elementary school students about the natural environment preservation. For this purpose, 21 elementary school students from the 5th grade of elementary school located in Gwangju city were selected. Especially, we focused on the students' conceptions related to 1) the environments, 2) the safe national land development activity to face several natural disasters and 3) the environmental preservation with the national land development. To evaluate the change of students' conceptions for the national land development, the students were also participated in establishing the plan of the national land development using the model of the natural environment after learning in detail about the natural environments. The results of this study showed that most of the students recognized the concept of the environments as a simple knowledge itself and pollution rather than the protection of environment. In the course of the safe national land development activity to face several natural disasters, the students expressed standardized answer indicating the knowledge based thinking of the environments. According to the results of the environmental preservation with the national land development and the hypothetical project of the national land development, the students did not have enough knowledge for the natural environment preservation although they had understanding of natural disasters and environmental preservation. Therefore, it is necessary to stress affirmative concept for the environment related to the preservation of natural environment. Also we need to develop the syllabus, which is related to the environmental studies, in the elementary educational program leading students to participate in the environmental preservation with the national land development reasonably and practically.

• Journal of Gifted/Talented Education
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• v.25 no.1
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• pp.161-177
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• 2015

The purpose of the present study was to verify the structural relationship among metacognition, interactions, problem solving ability and achievement in gifted students through the 3P model. In this study, factors affecting the performance of gifted education are based on 3P(presage, precess. product) theory(Biggs, 2003). Participants attended a 174 gifted student in institutes for the gifted education in the city office of education in Korea. A hypothetical model was proposed, which was composed of metacognition and interactions as exogenous variables; and problem solving ability and achievement as endogenous variables. The results of this study are as follows: First, metacognition and interactions had significant effects on gifted students' problem solving ability. Second, problem solving ability had significant effects on gifted students' achievement. And problem solving ability was verified as a complete mediating variable between metacognition and achievement also interactions and achievement.

• Journal of Korean Society of Environmental Engineers
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• v.36 no.12
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• pp.821-827
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• 2014

The 4major river project has caused changes in flow and water quality patterns in major rivers in Korea including the Nakdong River where several toxicant release accidents have had occurred. Three dimensional hydrodynamic model, the Environmental Fluid Dynamics Code (EFDC), was applied to evaluate the effect of geomorphological change of the river on the advection and dispersion patterns of a conservative toxic pollutant. A hypothetical scenario was developed using historical data by assuming a toxic release from an upstream location. If there is a toxic release at the Gumi Industrial Complex, the toxic material would be detected after 2.22 and 9.83 days at Chilgok and Gangjung weir, respectively, in the new river system. It was estimated that they took at least 12 times longer than those with the river conditions before the project. Effect of relocation of intake towers for Daegu Metro City to upstream of Gumi City was also evaluated using the developed modeling system. It was observed that hydraulic residence time would be increased due to decreased flow rate and thus due to lowered water level. However, peak concentration differences were found to be about 2% lower in both places due to increased dispersion effect after the relocation.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.28 no.6D
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• pp.871-879
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• 2008

Recently, as there are a rise in the standard of living and higher concerns of an electromagnetic wave and environment, undergrounding the aerial cables which are supported by large pylons and generally considered as the least attractive feature of an urban area is on an increasing trend to improve aesthetic benefits and electric reliability. This study applied Contingent Valuation Method (CVM) which is expected to become an effective tool to measure indirect benefit to estimate the substantial benefits of undergrounding overhead power line projects in an urban area. The tunneling construction project of the 345kV Shinsungnam electric power cable in Seongnam city was selected and a hypothetical scenario was given to respondents to determine their levels of Willingness to Pay (WTP) for undergrounding overhead power lines. The result from the estimation of the WTP of undergrounding overhead power lines in Seongnam city was calculated as approximately 17.1 billion won. Placing existing overhead lines underground is difficult to justify economically. Most undergrounding costs appear to be justified by aesthetic and public policy considerations. Therefore, considering the result of this study, undergrounding overhead power lines is of great benefit to public.

• Journal of Korean Academy of Nursing
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• v.15 no.1
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• pp.5-16
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• 1985

This study examined the effects of husband's supportive behavior reinforcement education on stress relief of primigravidas. The purpose was to reinforce husbands' supportive behavior and relieve primigravidas' stress. The purposes of this study were to determine lactors influencing Primigravidas' stress and the effect of husbands' supportive behavior reinforcement education on stress relief of primigravidas. The subjects, consisting of 140 primigravidas who registered or visited in three obstetrics and gynecology clinics in J city, were divided into at random experimental and control groups. Data were collectpe from April To July, 1984 through interviews during hospital visits, and by questionaires. The husbands' supportive behavior reinforcement education and the measurement tools were developed by the investigator from the literature and during pilot study: the instruments to measure primigravidas' stress and husbands' supportive behavior were tested for reliability and validity. Personality characteristisc were measured by Chestnuts' Stress Management instrument. T-test, ANOVA, ω², and Pearson Correlation were used in analysing the data to confirm the intensity of the influence and the relation between general characteristics and primigravidas' stress. Pearson correlation and Stepwise Multiple Regression were used to confirm the predictors of primigravidas' stress. Independent variables were compared by means of t-test and χ³-test to confirm significant discrepancy of experimental and control groups. T-test, paired t-test, pearson correlation were used in analyzing the data to confirm the effect of husband's supportive behavior reinforcement education on stress relief of primigravidas. The results of the study are summarized. Results from analyzing the effect of husbands' supportive behavior reinforcement education: There was no significant difference between the general characteristics of the experimental and control groups. And husbands' supportive behavior, personality, marital Satisfaction, natural abortion variables influenced at primigravidas' stress. A hypothetical test by comparative analysis of the measurement of primigravidas' stress and husbands' support behavior between the experimental and the control group before and after the experiment to confirm the effect of husbands' supportive behavior reinforcement education resulted in the following: The first hypothesis that husbands' supportive behavior reinforcement education will increase husbands' support behavior to relieve primigravidas' stress was supported. The second hypothesis that husbands' supportive behavior reinforcement education will relieve primigravidas' stress was supported. As a result, it u·as shown that husbands' supportive behavior reinforcement education relieved primigravidas' stress, and the hypotheses were supported. The third hypothesis that the higher the degree of husbands' supportive behavior, the lower the primigravidas' stress was supported. It was concluded that husbands' supportive behavior reinforcemen education increase husbands' supportive behavior and relieves Primigravidas' stress.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.2
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• pp.460-469
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• 2020

The purpose of this study was to examine the predictive factors for health promotion behaviors of older adults in rural areas. A theoretical substruction was constructed to test hypothetical models based on Pender's health promotion model. The data was collected from 199 older adults aged 65 years or older, who resided in G city, by using a structured questionnaire. The questionnaires contained items on individual characteristics, health literacy, self efficacy and health promoting behavior. The data was analyzed with a t-test, ANOVA, Pearson's correlation coefficients and hierarchical multiple regression analysis using SPSS 20.0 for Windows. The predictive factors for the health promotion behavior were the number of health information channels (β=.16, p=.031) and self efficacy (β=.53, p<.001). The total explanatory power of these factors was 30.8%. A nursing intervention plan for improving health promoting behaviors of older adults should be developed and applied, with a focus on self-efficacy and health information channels. Further longitudinal studies are needed to help confirm relevant measurement of the level of health promoting behaviors of older adults.