• Korean Journal of Hydrosciences
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• v.6
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• pp.107-118
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• 1995

The water distribution system problem consists of finding a minimum cost system design subject to hydraulic and operation constraints. The design of new branchin network in a paddy irrigation system is presented here. The program based on the linear programming formulation is aimed at finding the optimal economical combination of two main factors : the capital cost of pipe network and the energy cost. Two loading conditions and booster pumps for design of pipe network are considered to obtain the least cost design.

• Journal of Korean Institute of Industrial Engineers
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• v.38 no.4
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• pp.258-261
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• 2012

In this paper, I propose a new asset allocation framework to cope with the dynamic nature of the financial market. The investment performance can be much improved by protecting the capital from the market crashes, and such crashes can be pre-identified with high probabilities by regime detection analysis via a specialized unsupervised machine learning technique.

• Communications of the Korean Mathematical Society
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• v.19 no.1
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• pp.159-167
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• 2004

In [1], a relative root Nielsen number $N_{rel}(f;\;c)$ is introduced which is a homotopy invariant lower bound for the number of roots at $c\;{\in}\;Y$ for a map of pairs of spaces $f\;:\;(X,\;A)\;{\rightarrow}\;(Y,\;B)$. In this paper, we obtain a minimum theorem for $N_{rel}(f;\;c)$ under some new assumptions on the spaces and maps which are different from those in [1].

• Journal of Applied Tourism Food and Beverage Management and Research
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• v.14 no.1
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• pp.111-128
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• 2003

Advances in information technology (IT) are becoming one of the most significant driving forces changing the structure of global financial management. This phenomenon is occurring in all industries; the hotel industry is no exception and must quickly adapt to this new trend. This study examines the technology intensity of the industry by assessing the degree to which the industry has allocated capital to IT projects, and discusses IT investment in the hospitality industry with a particular emphasis on assessing the value of IT investment and its investment strategy.

• Proceedings of the KGS Conference
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• 2004.05a
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• pp.66-66
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• 2004

우리나라는 21세기 초입에 들어와 다음과 같은 기회의 국면에 처해 있다. 첫째, 세계적 Global Standard Economy의 구현, 둘째, 동아시아 허브국가로의 탄생, 셋째, 지식 기반산업의 성장과 같은 세가지 기회에 직면한 것이다. 우리나라가 이러한 기회들을 잡아 국가 경쟁력을 강화하기 위해서는 지금부터라도 국토의 수도권과 기수도권간의 공생적 공동번영의 개발계획을 준비하는 것이 시급히 요구된다. (중략)

• Journal of the Korean Regional Science Association
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• v.14 no.1
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• pp.65-90
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• 1998

Time series data on the size of Chonsei deposit has been estimated. At the end of 1997, that size has been estimated as 112 trillion Korean Won. If the Chonsei system can be moved toward the monthly rental system, it is highly probable to achieve the Pareto imporvement whether there are uncertainties or not. The new system named as the Chonsei system without the Chonsei deposite has been suggested, which can be readily to be introduced. Under this system, the owner can sustain opportunitities of using Chonsei deposit, renters can rent houses whithout the Chonsei deposity and financial intermediaries can secure safe sources of loans, which will increase BIS capital ratio of banks.

• KDI Journal of Economic Policy
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• v.28 no.1
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• pp.219-231
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• 2006

This paper presents a dynamic analysis of the interaction between incumbent firms and successful new entrepreneurs, that can provide R&D incentives when innovations are cumulative/sequential. It is argued that the insights of the basic model extend to varying market structures and regulatory environments.

• Proceedings of the Safety Management and Science Conference
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• 2003.05a
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• pp.291-297
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• 2003

In fact, some cases that successfully introduced CRM show that CRM is migrating from small scale which is typical when introduced to larger scale through various tests. The process also comprises all strategic planning, capital investments, management decisions, and tasks necessary to create a new product. manufacturing processes must be created so that the product can be produced in the product facility Therefore, this study tries to segment customer for the sieving the problem. And it make efficient customer management.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2008.05a
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• pp.39-41
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• 2008

It is generally acknowledged that with the advent of digital technology we are faced with the revolutionary era in which everyone can enjoy the virtual reality with the simple motion of his or her fingertips. Specifically, this new trend enables domestic game industries to make a big takeoff in their size and capital accumulation. Considering this phenomenon, this project is designed to suggest an ideal space equipment or placement required to various forms of game industries.

• 한국정보통신설비학회:학술대회논문집
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• 2008.08a
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• pp.513-515
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• 2008

Due to the rapid development of telecommunication industry, most telecom operators are investing to upgrade their access networks by using optical cables instead of copper cables. Building new telecom ducts for optical cable installation requires so huge capital expenses that most telecom operators need to remove unused copper cables in order to secure enough space to in-stall optical cables. In this paper, we will present a alternative method to extract copper from removed copper cables.