• Proceedings of the Korea Water Resources Association Conference
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• 2020.06a
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• pp.75-75
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• 2020

하천법에 의거하여 국내 하천들에는 상당한 국가예산으로 하천정비기본계획이 5-10년 주기로 수립되고 있으며, 홍수위 계산을 위한 HEC-RAS 모의에 필요한 하천단면 등 다양한 하천측량이 실시되고 있다. 그러나, 하천측량자료들은 하천관리지리정보시스템(RIMGIS)에 pdf 보고서 형태로만 제공되고, 원자료는 CAD 형식으로 하천정비계획을 수행한 설계사 등이 분산 소유하고 있어 관리부재로 망실의 우려도 있어, 다른 용도로의 활용성이 상당히 저하되어 있는 실정이다. 그리고, 측량된 CAD 형식의 단면자료 등을 HEC-RAS에 활용할 때, 'Dream'과 같은 툴을 활용하나 거의 수작업에 가까운 시간과 비용이 소요되는 현실에 있다. 본 연구에서는 이러한 문제들을 해결할 수 있는 툴인 RAUT(River information Auto Upload Tool)를 개발하였다., RAUT 툴은 첫째, 실무에서 하천기본계획 수립 시 활용되는 HEC-RAS 1차원 모형의 입력자료를 CAD 측량자료를 직접수기로 입력 및 모의를 실시하는 복잡한 단계를 자동화시키고자 하였다. 둘째, 하천공간정보인 CAD측량 자료를 직접 읽어 표준 데이터 모델 (Arc River)기반 하천공간정보 DB에 자동 업도드하여 전국단위의 하천정비계획의 하천측량자료 관리가 가능하게 할 수 있다. 즉, 만약 RIMGIS가 RAUT와 같은 툴을 사용하면 하천단면과 같은 전국단위 하천측량 자료를 체계적으로 관리할 수 있게 된다는 의미이다. 개발한 RAUT는 제주도 한천유역을 대상으로 하천정비기본계획의 하천공간정보 CAD자료를 읽어들여 mySQL기반 공간 DB로 구축하고, 구축된 DB로부터 HEC-RAS 1차원 모의 실시하기 위한 지형자료를 자동으로 생성시키는 과정을 시범적으로 구현하였다.

• Proceedings of the Korean Information Science Society Conference
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• 2007.06c
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• pp.104-109
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• 2007

최근 분산된 자원을 효과적으로 공유할 수 있는 그리드 기반의 과학 연구가 다양하게 진행되고 있으며, 그러한 예로 국내에서는 건설 및 토목 분야의 원격실험 관측과 제어를 포함한 공동연구 환경의 구축을 내용으로 하는 KOCED(Korea Construction Engineering Development) 프로젝트가 진행 중에 있다. 본 논문에서는 KOCED에서 구축 중인 실험센터의 하나로써, 지리적으로 떨어진 실험 시설과 수치시뮬레이션을 연동하여 실험할 수 있는 하이브리드 실험센터를 대상으로 데이터 모델링을 하였다. 데이터 모델은 데이터를 표현하는 용어를 통일하고 데이터 간의 관계를 명확하게 하여, 데이터의 재사용성을 높일 수 있기 때문에 실험비용이 많이 소모되는 과학실험에 필수적이다. 그리드에 기반한 하이브리드 실험의 데이터 모델링은, 기존의 건설 및 토목실험의 대부분이 독립적인 실험 형태였기 때문에, 정확한 데이터 모델을 예측하기가 용이하지 않았다. 따라서 먼저 하이브리드 실험의 축소 모형인, 프로토타입 실험체를 만들고, 이에 대한 데이터 모델을 설계하여 토목공학 연구자에 의해 사용하게 하였다. 일정기간 사용기간을 갖고, 이에 대한 회의를 통해 향후 구축될 하이브리드 실험센터의 데이터 모델을 설계하였다. 현재 하이브리드 실험의 데이터 모델을 그리드 포탈 기반의 데이터관리 서비스로 구현 중에 있다.

• Journal of Korea Game Society
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• v.18 no.6
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• pp.29-38
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• 2018

Although computer games seem to be efficient tools for facilitating and supporting situated learning in Europe, GBL(game based learning) is less likely in Korea. The objectives of this paper are to address the causes of the problem and evaluate a serious game for history GBL. We review various cases of history GBL projects in European School Net, commercial games and serious games which are related to history. We draw a demand of our game's structural type, learning criterion, basic model of instruction, and executable prototype from the analysis results. Scene management educators pursue and dependencies of turning points in the history are critical differentiator. An evaluation team of educators, learners, and edu-game managers evaluates that the prototype is suitable model for application in history instruction.

• The Korean Journal of Financial Management
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• v.24 no.4
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• pp.107-134
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• 2007

This paper tests the relationship among returns, volatilities, contracts and open interests of KOSPI 200 futures markets with the various dynamic models such as granger-causality, impulse response, variance decomposition and ARMA(1, 1)-GJR-GARCH(1, 1)-M. The sample period is from July 7, 1998 to December 29, 2005. The main empirical results are as follows; First, both contract change and open interest change of KOSPI 200 futures market tend to lead the returns of that according to the results of granger-causality, impulse response and variance decomposition with VAR. These results are likely to support the KOSPI 200 futures market seems to be inefficient with rejecting the hypothesis 1. Second, we also find that the returns and volatilities of the KOSPI 200 futures market are effected by both contract change and open interest change of that due to the results of ARMA(1,1)-GJR-GARCH(1,1)-M. These results also reject the hypothesis 1 and 2 suggesting the evidences of inefficiency of the KOSPI 200 futures market. Third, the study shows the asymmetric information effects among the variables. In addition, we can find the feedback relationship between the contract change and open interest change of KOSPI 200 futures market.

• The Journal of the Korea Contents Association
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• v.12 no.9
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• pp.479-488
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• 2012

The purpose of this study was to determine the impact in visitors' spending on two separate local festivals, and to present the improved market strategies to attract visitors to revisit the local festivals. This study was also intended to suggest the ways to increase the competitiveness and revitalize the local festivals by improving the existing attractions and creating new attractions based on the visitors' evaluation. On the purpose of the study, we studied the visitors of two local ricefests, Icheon Rice Cultural Festival and Rice Festival in Jincheon Chungbuk, and estimated the determinants influencing the visitors' spending to the festivals by applying Tobit model. Finally, to estimate the behavioral differences in visitors of the two festivals, we compared the estimated determinants for the visitors of each festival by using Log-likelihood Ratio, and analyzed the differences in the factors influencing the visitors' spending. Summarizing the propensity of visitor's spending to local festivals, visitors of two rice festivals buy or tended to buy things on impulse. Therefore, festival industry needs to take measures to efficiently accommodate their expenditures from the stage of designing festivals.

• Korean Journal of Construction Engineering and Management
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• v.11 no.1
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• pp.101-112
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• 2010

The Korean real estate market currently is experiencing a slowdown due to the global economic crisis which has resulted from subprime mortgage lending practices. In response, the Korean government has enforced various policies, based on intend to deregulate real estate speculation, such as increasing the Loan to value ratio (LTV) in order to stimulate housing supply, demand and accompanying housing transactions. However, these policies have appeared to result in deep confusion in the Korean housing market. Furthermore, analyses for housing market forecasting particularly those which examine the impact of the international financial crisis on the Korean real estate market have been partial and fragmentary. Therefore, a comprehensive and systematical approach is required to analyze the real estate financial market and the causal nexus between market determining factors. Thus, with an integrated perspective and applying a system dynamics methodology, this paper proposes Korean Real Estate and Mortgage Market dynamics models based on the fundamental principles of housing markets, which are determined by supply and demand. As well, the potential effects of the Korean government's deregulation policies are considered by focusing on the main factor of these policies: the mortgage loan.

• Journal of Digital Convergence
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• v.16 no.12
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• pp.1-10
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• 2018

For local festivals to be successful, it is important to cooperate with various entities and effectively utilize festival-related resources. Recently, many efforts have been made to improve the operation and management performance of local festivals in Korea, but systematic management and IT support have been insufficient. In this study, the factors affecting the IT governance of local festivals were derived through a literature review and the relationship to the festival performance was analyzed empirically. A survey was conducted with local festival organizers and stake holders, and the research model was verified using the regression analysis with total 109 samples. According to the results of the analysis, it was confirmed that marketing, processes and service management have a significant effect on festival performance within IT governance. The effect of festival performance on resource management was not statistically significant. This study demonstrates that the systematic operation and management of local festivals using IT governance is necessary for local festivals. It will be more meaningful if further study discuss the IT utilization guidelines and success cases through the innovative use of IT for local festivals.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.2
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• pp.1126-1139
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• 2014

World is experiencing abnormal weather caused by urbanization and industrialization increasing greenhouse gas and one of these phenomenon domestically happening is flood and drought. The increase of green-house gases is due to urbanization and industrialization acceleration which are causing abnormal climate changes such as the El Nino and a La Nina phenomenon. It is expected that there will be many difficulties in water management, especially considering the topography and seasonal circumstances in Korea. Unlike in the past, a variety of water conservation initiatives have been undertaken like the river-management flow and water capacity expansion projects. To meet the increasing demand for water resources, new environmentally-friendly small and medium-sized dams have been built. Therefore, the development of a new paradigm for water resources management is essential. This study shows that additional security is needed for potential water resources through diversion tunnels and is very important to consider for future water supplies and situations. Using RCP 6.0 and RCP 8.5 in representative concentration pathway climate change scenario, specific hydrologic data of study basin was produced to analyze past observed basin rainfall tendency which showed both scenario 5%~9% range increase in rainfall. Through sensitivity analysis using objective function, population in highest goodness was 1000 and cross rate was 80%. In conclusion, it is expected that the results from this study will help to make long-term and stable water supply plans by using the potential water resource evaluation model which was applied in this study.

• The Korean Journal of Archival Studies
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• no.46
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• pp.189-231
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• 2015

This study is for establishing an appraisal methodology to ensure the accountability of the parliament and to documentation the contemporary historical events related to the National Assembly. It is impossible to documentation comprehensively the activities of the National Assembly through the records schedule of the National Assembly, the current the disposal guidelines of the National Assembly. In particular, this is designed focusing on four affiliated organizations such as the National Assembly Secretariat, so there is a fundamental limit to documentation the outputs of various external agencies and areas where have relationships with the National Assembly. Therefore, it is hard to documentation comprehensively the various issues and historical events occurring in the National Assembly under the current appraisal system. In this situation, this study presents the appraisal methodology, the institutional functional analysis to ensure the accountability of the institution as a first step. However, only with the institutional functional analysis methodology, it is difficult to organize collectively the contemporary historical events or social events ongoing in relation to the fundamental functions of the National Assembly. For this reason, the subject oriented documentation methodology is designed that is the appraisal methodology of selecting the records related to the contemporary social phenomena and historical events according to the functional areas of the National Assembly derived from the institutional functional analysis methodology. Thereby, it is designed that the model of the documentation strategy applicable to the National Assembly in reality.

• 대한공업교육학회지
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• v.34 no.2
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• pp.179-204
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• 2009

As the concern with the educational training for human resources development in organizations grows, various programs are being offered in many places. Accordingly, the issue of securing the validity of the education and the importance of its assessment at the level of continuous quality management of the programs draw our attention. The purpose of this study is to offer the basic data of evaluation criteria for human resources development which knowledge-and-information saturated society requires, and also to draw out the greater area of human resources development educational program based on CIPP(Context, Input, Process, Product) model by Stufflebeam, an evaluation model concentrated on process, through literature and case study in and out of Korea. The result of the study is as follows. First, the evaluation areas drawn out by the greater sphere of context evaluation of human resources education program are needs analysis, goal setting, and organizational environment. Second, the evaluation areas drawn out by the greater sphere of input evaluation of human resources education program are educational program strategies, human resources, and physical resources. Third, the evaluation areas drawn out by the greater sphere of process evaluation of human resources education program are educational program management, teaching-learning strategies, and educational support environment. Fourth, the evaluation areas drawn out by the greater sphere of product evaluation of human resources education program are influence, effect, durability, and transference. The author supposes that these results will be able to become the basic materials for the systematic approach to educational programs through the analysis of evaluation criteria for and the greater sphere of educational program of human resources development.