• 환경영향평가
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• 제8권1호
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• pp.141-146
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• 1999

This paper proposes the planning and design of the Eco-village centering around Chindo-ri, Muju-kun. The Eco-village project has three basic objects the Eco-village residents' lives adapting to ecological principles such as regeneration and circulation, life agricultural techniques based on organic cycle, and residents' harmonious lives with the surrounding nature. For constructing of the Eco-village, first, the subject area was analyzed in terms of the natural and cultural environment and then, on this analytic ground the concrete concept and the specific plan were set up. The following details also should be considered: the scale of the residential household, the population, the space arrangement of the village, the material cycling structure, the waste treatment, the purification of the sewage, the energy supply, the landscape architecture, the production activity, the conservation of the ecosystem and so on.

• KIEE International Transactions on Power Engineering
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• 제4A권3호
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• pp.159-166
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• 2004

Forecasting prices in electricity markets is critical for consumers and producers in planning their operations and managing their price risk. We utilize the generalized autoregressive conditionally heteroskedastic (GARCH) method to forecast the electricity prices in two regions of New York： New York City and Central New York State. We contrast the one-day forecasts of the GARCH against techniques such as dynamic regression, transfer function models, and exponential smoothing. We also examine the effect on our forecasting of omitting some of the extreme values in the electricity prices. We show that accounting for the extreme values and the heteroskedactic variance in the electricity price time-series can significantly improve the accuracy of the forecasting. Additionally, we document the higher volatility in New York City electricity prices. Differences in volatility between regions are important in the pricing of electricity options and for analyzing market performance.

• 한국정보처리학회논문지
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• 제2권3호
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• pp.343-353
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• 1995

자율 운송 장치나 이동 로보트에 대한 경로 이동 문제는 이동하고자 하는 환경을 완전히 알고 있거나, 장애물이 고정된것으로 가정해 왔다. 따라서, 임의의 환경에 대해 부분적으로 알고 있거나 미지의 환경에서의 자율 운송 장치의 운항을 위해서는 이들 경로 기법은 직접적인 적용이 불가능하고, 확장이 어렵다. 본 논문에서는 이들 문제점을 개선하기 위해서 쿼드트리 기법을 도입하였으며, 임의의 환경에서 자율적으 로 경로 계획을 할 수 있는 알고리즘을 제안하였고, 알고리즘의 타당성을 시뮬레이션 을 통해 증명하였다.

• 산업경영시스템학회지
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• 제24권67호
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• pp.37-48
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• 2001

Information Systems Planning(ISP) has gained considerable interest among researchers and practioners in recent years because of the large investments that firms have made in IS and the increasingly strategic nature of the impact of information systems on organization performance. This study aims at analyzing IS process factors influencing ISP's effectiveness. The data collected were analyzed using statistical techniques if canonical correlation analysis. The following results were obtained. There was significant relationship between ISP process and ISP's effectiveness. Specially, business-led approach affects ISP problems. To conclude, the result of this study have practical implications that CEO or IS manager must consider IS process factors to improve ISP's effectiveness.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2001년도 학술발표대회논문집
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• pp.69-74
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• 2001

This study proposes interpretation on techniques as planning methods for environmentally friendly housing estates in a view of Kim young-ok′s Ki philosophy which is based on the east asian studies. through consideration on the environmentally friendly concept with case-studies. When residents make places for a community and participate in controlling housing estate, it is necessary to get harmonized and united among them. This is needed to better understand it in confucianism which regards practicing of humanity as the best of virtue of fellowing the way of heaven. Interests of the western in enviromental1y friendly housing estates are still limited to purpose of comfortableness, convenience, and capability. But, on the Ki philosophy, a ultimate purpose of environmentally friendly housing estates is not for the matters of western interests, but "health".

• 한국정보과학회논문지:소프트웨어및응용
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• 제27권1호
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• pp.33-40
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• 2000

자동공정계획은 CAD 모델을 자동적으로 해석하여 CAM을 구동시키는 것을 목표로 하는데, 이를 위해서는 우선 CAD 모델로부터 특징형상을 인식하여야 한다. 특징형상 인식에 관한 연구는 근 20년간의 역사를 가지고 있지만, 그 연구 성과는 실용화되지 못하고 있다. 그 이유 중 하나는, 특징형상 인식과 자동공정계획 연구가 분리되어 진행되어왔기 때문이다. 본 연구에서는 인공지능 기법을 토대로 이 두 분야를 통합하여, 제조가능한 특징형상을 인식하고, 셋업을 최소화하며, 특징형상 간의 의존 관계를 설정하고, 최적의 가공 순서를 결정하였다.

• 농촌계획
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• 제2권2호
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• pp.91-102
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• 1996

Monitoring techniques for afro-ecological environments were studied, Hydrologic and ecological components in conjunction with water quality were monitored in the Balkan watershed. The hydrologic monitoring program consists of four water level gauging stations along creeks and stream at the watershed having 26.5 km2. Stage - storage relationship of reservoir, rainfall amount of the watershed, and rating curve of the stream gauging stations were established. Soil type, land use, hydrologic soil group, population and economic activities within the watershed were surveyed. Water quality data from the streams were sampled weekly and chemical analysis was conducted. Temporal variations of water quality were investigated and water quality map of each reach of stream was made to identify spatial variations. Seasonal and spatial variations of vegetation densities along stream in the watershed were investigated using grid, Density variations of insect species such as arthropod, flying insect, spider spices, rice insects were also monitored to determine seansonal surveying density. These monitored data will be used to develop monitoring techi%ues and afro - ecological environment models.

• 품질경영학회지
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• 제21권1호
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• pp.181-189
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• 1993

Over the past two decades, forecasting has gained widespread acceptance as an integral part of business planning and decision making. Accurate forecasting is a prerequisite to successful planning. Accordingly, recent advances in forecasting techniques are of exceptional value to corporate planners. But most of forecasting mothods are reveal its limit and problem for precision and reliability duing to each relationship for raw data and possibility of explanation for each variable. Therefore, to construct the Integrated Forecasting Model(IFM) for Information Factor Analysis, it shoud be considered that whether law data has time lag and variables are explained. For this. following several method can be used : Least Square Method, Markov Process, Fibonacci series, Auto-Correlation, Cross-Correlation, Serial Correlation and Random Walk Theory. Thus, the unified property of these several functions scales the safety and growth of the system which may be varied time-to-time.

• Korean Journal of Hydrosciences
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• 제5권
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• pp.57-70
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• 1994

For the system benefit optimization by considering risk or reliability from a multiple reservoir system using the Monte Carlo Technique, Many stochastically generated inflow series have to be used for the system analysis. In this study, the stochastically generated inflow series for the multiple reservoir system operation are preprocessed according to the considering system objectives and operating time periods. Through this procedure, several representative inflow series which have discrate probability levels and operation horizons are selected among the thousands of generated inflows. Then a deterministic optimization technique is applied to the hydropower energy estimation from the Han River Reservoir System which considers five reservoirs in this study. It took much less computational requirements than using the original Morite Carlo Technique, even though estimated result was almost similar.

• 한국국방경영분석학회지
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• 제27권2호
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• pp.37-55
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• 2001

The main purpose of this study is to review the current system and to develop a decision support system for evaluating the priorities among those possible alternatives in the army facility enterprise. This paper also provides an information system which can be effectively applied to various criteria and stages in decision making process such as Planning and Programming phases in PPBEES. The model base of decision support systems uses the concepts of the analytic hierarchy process along with the supplementary techniques such as TOPSIS and 0-1 integer programming. Both AHP and TOPSIS are used scoring approaches in the Planning phase and IP is induced at the Programming phase to give GO/NO-GO solution for each project. We use Expert Choice, Excel and LINDO s/w's to implement a prototyped model. The proposed methodology in this paper enables the decision makers to evaluate the priority based on quantitative and qualitative data in a systematic way.