• Proceedings of the Korea Water Resources Association Conference
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• 2017.05a
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• pp.485-485
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• 2017

현재까지 국내에서는 미래에 발생할 수 있는 물 부족을 전망하고 이를 해소할 수 있는 여러가지 방안을 제시하는 수자원계획을 수립하고 있다. 대표적인 예로 국가수자원장기종합계획을 들 수 있으며 목표연도에 대한 사회 경제적 요인의 변화를 전망함으로써 용도별 수요량을 산정하고 공급가능량을 함께 고려하여 물 수급 전망을 수행하고 있다. 이 때 주요공급원으로는 하천유출량과 함께 건설되어 운영 중이거나 계획 중인 댐과 광역 및 공업용수도를 고려하고 있으며 산정된 수요량과 공급량을 통해 물수지 분석을 수행한 후 지역공급원으로 지하수 및 농업용저수지를 추가로 고려하고 있는 실정이다. 다시 말해 지하수에 대한 고려는 최근 이용하였던 암반지하수량을 미래에도 동일하게 이용가능하다는 가정 하에 분석을 수행한다는 것이다. 하지만 기후변화, 물이용패턴, 하천수질변화 등으로 인해 지하수량의 변화가 예상되고 있어 현재와 동일하게 이용할 수 있다는 지하수 관련 가정은 현실성이 떨어진다고 할 수 있다. 따라서 미래에 대한 물 수급 전망에 있어 지하수를 중요한 공급원으로 고려하여 분석할 필요가 있으며 이를 평가하고 분석할 모형의 개발이 절실한 상황이다. 본 연구에서는 기존의 수자원평가계획 모형인 K-WEAP모형과 지하수 모의 모형인 MODFLOW를 연계하여 지표수-지하수를 통합적으로 분석할 수 있는 K-WEAPccia ver 2.0을 개발하였다. 이 모형에서는 지표수-지하수 상호작용을 모의하기 위해 4가지 옵션을 개발하였으며 하천 또는 하도구간에 대한 지하수 유입량과 유출량을 직접 입력하는 방법, 모형 자체적으로 직접분석할 수 방법(토양수분방법 또는 하천과 지하수간의 관계 규명 방법) 및 MODFLOW와의 연결을 통해 지하수를 모의할 수 있도록 하였다. 개발된 모형을 통해 향후 물 수급 전망에 있어 주요한 공급원인 지하수를 함께 모의할 수 있도록 함으로써 보다 현실적이고 합리적인 수자원계획을 지원할 수 있을 것으로 기대된다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.3
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• pp.617-631
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• 2019

In the four-step demand model, a gravity mode is used most commonly at the trip distribution stage. The purpose of this study was to develop a new friction factor that can express the accessibility property as a single friction factor to compensate for the variable limits of the gravity model parameters (travel time, travel cost). To derive a new friction factor, a new friction factor was derived using the space syntax that can quantify the characteristics of the urban space structure, deriving the link-unit integration degree and then using the travel time and travel distance relationship. Calibration of the derived friction factor resulted in a similar level to that of the existing friction factor. As a result of verifying the various indicators, the explanatory power was found to be excellent in the short - and long - distance range. Therefore, it is possible to derive and apply the new friction factor using the integration index, which can complement the accessibility beyond the limit of the existing shortest distance, and it is believed to be more advantageous in future utilization.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.18 no.5
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• pp.183-193
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• 2019

This study developed a shockwave detection and prediction of their extinction point method based on continuous wavelet transform using trajectory data from probe vehicles equipped with automotive sensors.. To analyze the effectiveness of the proposed method, this paper proposed two measures which are a distance error between the extinction points of the predictor and an time-location error of the extinction points. The proposed concept was proved using the micro simulation based experiment with three exogenous variables of traffic volume, lane-close duration, market penetration of probe vehicles. The analysis results show that the proposed method is capable of detecting the traffic shockwaves as well as predicting their extinction point, and also that the accuracy of the proposed method is highly dependent on the rate of the probe vehicles.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.4B
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• pp.379-387
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• 2006

An urban inundation model coupling an one-dimensional stormwater model, SWMM(Storm Water Management Model), and a two-dimensional inundation model was developed to simulate inundation caused by the surcharge of storm sewers in urban areas. The limitation of this model which can not simulate the interaction between drainage systems and surcharged flow was resolved by developing Dual-Drainage inundation analysis model which was based upon hydraulic flow routing procedures for surface flow and pipe flow. The Dual-Drainage inundation analysis model can simulate the effect of complex storm drainage system. The developed model was applied to Dorim, catchment. The computed inundated depth and area have good agreement with the observed data during the flood events. The developed model can help the decision support system of flood control authority for redesigning and constructing flood prevention structures and making the potential inundation zone, and establishing flood-mitigation measures.

• The Journal of Korean Academy of Sensory Integration
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• v.17 no.3
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• pp.26-45
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• 2019

Objective : The purpose of this study is to develop educational goals, training content, and training methods for the intervention course of the Korean Academy of Sensory Integration (KASI) and to conduct competency-based intervention courses based on the competency model for sensory integration intervention. Methods : This study was conducted on work therapists who participated in the 2019 intervention course of KASI. In the first phase, educational needs were analyzed to set goals for the interventional course. In the second phase, a meeting of researchers drafted the intervention course education program and the methods of education, and the intervention course was conducted. In the third phase, the changes in educational satisfaction and performance level pre- and post-intervention course for each competency index were investigated. Results : The educational goals of "learning and applying the clinical reasoning process of sensory integration intervention" and "intervention by applying the principle of sensory integration intervention" were set after reflecting on the results of the analysis of the educational requirements. The length of the competency-based intervention course was 42 hours. The average education satisfaction level of participants in the arbitration process was 4.48±0.73, and the average education satisfaction level of the supervisor was 3.92±0.71. In both groups, the most satisfying curriculums were the data-driven decision-making process and the intervention goal-setting lecture. But the satisfaction level of was the lowest. Before and after the intervention course, there were significant changes in the performance of the two behavioral indicators of the analytic skills in the expertise competency cluster of the competency model. Conclusion : This study is meaningful in that it conducted a survey of educational needs, the development and implementation of an educational curriculum, and an education satisfaction survey through systematic courses necessary for education development.

• Convergence Security Journal
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• v.15 no.2
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• pp.69-80
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• 2015

The present study was conducted with aim for establishing the framework of integrated veteran policy for unified Korea through the analysis of the North Korea's veteran policy. For the purpose, this study reviewed the legal system and implementation process concerning the North Korea's veteran policy and analyzed the establishment of fundamental framework of unification and the implications from the North Korea's veteran policy for unified Korea. The review of the North Korea's veteran policy covered the beginning of the North Korea's veteran policy to the present. Based on the findings of the review, this study revealed the necessity of re-establishing the principle of veteran policy in preparation for unification and proposed a plan for unified veteran policy. The results from this study are expected to be a meaningful milestone to unified veteran policy after unification. It is reasonably expected that there will remain considerable differences and conflicting factors, which could block the path to national integration, between two countries and their peoples after unification. Therefore, it is more important to make a thorough preparation and form social consensus than any other. In this respect, national policy for veterans should go back to basics and be reviewed to be ready for unification. Although different in time, the North Korea's veteran policy was and is the base of the nation's system and source engine for development every period. Re-designing the principle of veteran policy should reflect both symbols of the unified nation and the national identity, but also of socially integrated spirit. Therefore, it must include the spirit of patriotism and awareness of national security. Furthermore, as for the integration of veteran policies for unification, it is especially important for two countries to possess and share common historical consciousness. The unified veteran policy should be integrated on this base.

• Journal of the Korean Geographical Society
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• v.40 no.3 s.108
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• pp.296-309
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• 2005

In this study, we investigated the change of future land-surface and relationships of land-surface change with geo-spatial information, using a Bayesian prediction model based on a likelihood ratio function, for analysing the land-surface change of the Gongju area. We classified the land-surface satellite images, and then extracted the changing area using a way of post classification comparison. land-surface information related to the land-surface change is constructed in a GIS environment, and the map of land-surface change prediction is made using the likelihood ratio function. As the results of this study, the thematic maps which definitely influence land-surface change of rural or urban areas are elevation, water system, population density, roads, population moving, the number of establishments, land price, etc. Also, thematic maps which definitely influence the land-surface change of forests areas are elevation, slope, population density, population moving, land price, etc. As a result of land-surface change analysis, center proliferation of old and new downtown is composed near Gum-river, and the downtown area will spread around the local roads and interchange areas in the urban area. In case of agricultural areas, a small tributary of Gum-river or an area of local roads which are attached with adjacent areas showed the high probability of change. Most of the forest areas are located in southeast and from this result we can guess why the wide chestnut-tree cultivation complex is located in these areas and the capability of forest damage is very high. As a result of validation using a prediction rate curve, a capability of prediction of urban area is $80\%$, agriculture area is $55\%$, forest area is $40\%$ in higher $10\%$ of possibility which the land-surface change would occur. This integration model is unsatisfactory to Predict the forest area in the study area and thus as a future work, it is necessary to apply new thematic maps or prediction models In conclusion, we can expect that this way can be one of the most essential land-surface change studies in a few years.

• Journal of the Korean Geographical Society
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• v.37 no.4
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• pp.371-384
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• 2002

It is very important to predict the environmental changes in the land-surface as a way of prevention of sustainable nature. This study investigated the difference between the predicted and actual data of Anmyeon-do from 1981 to 2000 through a fuzzy logic operation using multi-spectral image. According to literature survey, maps, and ground truth data, the types of land-use have changed due primarily to shore reclamation or wild land and grassland fostering before the eighties. After the mid-eighties, however, a number of private residents and commercial stores quickly have spreaded throughout beach resorts and quasi-agricultural and forest areas. Moreover, shore and community regions were severely damaged in the nineties with increased farmland, due to the development of tour places and expansion of city area. The predicted result of the environmental changes in the land-surface using the fuzzy logic operation was almost similar to the state of Anmyeon-do obtained through the satellite image. Particularly, the flat lands near the shore was predicted to change slightly. This area is largely under development, thereby raising concerns on the shore environment. Thus, this method is applicable to conducting research on the change in the land-surface.

• Journal of Korean Society of Transportation
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• v.27 no.2
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• pp.35-46
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• 2009

This paper presents an evaluation index for the supply levels of pedestrian facilities in residential area planning. The pedestrian facility supply levels reveal the quality of a residential area, and can be associated with the resident living standards and satisfaction, pedestrian safety levels, and the effectiveness of the construction cost. This research conducted multifaceted procedures for the index development, and these procedures start first by identifying dominant influencing factors on pedestrian travel demand by reviewing the final reports of site planning in more than eight already-completed residential development sites. Second, based on the Space Syntax model, which was initially developed in the UK by establishing statistical relationships among an integration index, population size (persons/day), and the total development area, this research formulated a set of pedestrian demand estimation models. Then these models were utilized in forming a pedestrian facility supply index by integrating the new models and their results with the available accepted practice in the residential planning sector. This was necessary because planners want to understand the total supply level of pedestrian facilities in a residential area during the initial design stage. Finally, to test the model validity in satisfying pedestrian satisfaction, the research included a resident satisfaction interview, and it was revealed that the evaluation index developed in this research could provide planners and engineers with more promising results. It is therefore anticipated that this research can be of service when designing pedestrian facilities in future residential area planning and design activities.

• The Journal of the Korea Contents Association
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• v.19 no.12
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• pp.279-288
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• 2019

The purpose of this study was to compare the health behaviors and health indices according to whether a percutaneous coronary intervention(PCI) was performed due to chest pain. This is a secondary data analysis study of nursing information questionnaires and electronic medical records of 247 chest pain patients in a hospital from January 2010 to December 2017. The participants were divided into non-PCI and PCI groups, and the health behaviors, blood pressure, and blood lipid levels were collected at the first hospital admission and re-admission. Collected data were analyzed using SPSS 24.0. As a result of the study, smoking and lipid levels were significantly healthier than the participants in PCI group during re-hospitalization. Non-PCI group had a high risk of smoking despite the high risk of coronary artery stenosis. It was found that continuous integrated management to promote health behavior is needed. The significance of this study was to identify the importance of health behavior in patients with the risk of cardiovascular disease.