• Proceedings of the Technology Innovation Conference
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• 2001.06a
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• pp.61-70
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• 2001

Cross impact relationships exist among technologies. The purpose of this study is to develop a Cross Impact-based Technology Valuation Model necessary for evaluating the value of interdependent technology. For this purpose, cross impact relationships among interdependent technologies within specific technological system are analyzed by using Fuzzy Structural Modeling(FSM) Method. The model developed in this study will be a useful means of strategic decision making for companies which transact technologies.

• Electronics and Telecommunications Trends
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• v.35 no.5
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• pp.134-138
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• 2020

Blockchain is an enabling technology for managing data with high trust and transparency among connected computers. Blockchain emerged with the advent of the Bitcoin cryptocurrency, and then, evolved as general-purpose platforms such as Ethereum, EOS, R3 Corda, and IBM Hyperledger Fabric. The application of blockchain covers a broad range of areas such as fintech, decentralized identity, distribution, real estate trading, games, and drone air traffic management. Smart contracts are indispensable for constructing blockchain services. This survey classifies smart contract languages by their features and shows their differences from existing general-purpose programming languages.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 1994.10a
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• pp.57-62
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• 1994

The purpose of this study is to improve the neiboring environment in the internal and external university campuses. For this purpose, survey to 567 students in 7 universities in Daegu-Kyungbuk area. According to the changes of location pattern of campuses, the external facilities are play a role to help the function of internal facilities, and to accommodate the daily life of students. Therefore this study plan to find out their satisfaction and need of the neiboring facilities.

• Proceedings of the KIEE Conference
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• 1992.07a
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• pp.100-102
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• 1992

Optimal generation dispatch algorithm is developed using L.P and load dispatch method. The algorithm is composed with three steps. Fist phase, analytical algorithm is adopted to solve to minimize quadratic cost functions which fits well for planning purpose. Second phase uses L.P method for obtain economic redispatch that satisfies line constraints. When there is no solution whitch satisfy line constraints load shedding algorithm solves the problem.

• The Journal of Information Technology
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• v.10 no.2
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• pp.65-80
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• 2007

The development of social enterprise is rapidly emerging trend in Europe. Social enterprises are businesses with a social purpose working. There is no single legal model for social enterprise. There are many social enterprises operating in a wide range of industries from farmers markets and recycling companies to transport providers and childcare. Common characteristics of Social enterprise are Enterprise Orientation, Social aims, Social ownership.

• Proceedings of the Korea Concrete Institute Conference
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• 1993.10a
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• pp.132-137
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• 1993

The purpose of this study is to evaluate the quality characteristics of concrete using super plasticizer which is on the market within the country. For this purpose, nine kinds of super plasticizer are compared and analyzed for the slump , air content, unit weight, water-reducing percent and ratios of compressive strength with admixture content. As a result, the optimum quantity of admixture content were obtaining for ordinary and high strength concrete using super plasticizer.

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.721-722
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• 2008

The method for evaluating AF's quality and calculating of AF checking time is proposed in this paper. For the purpose, the fuzzy control method is used. To show the effectiveness, the technique is implemented and the performance is verified on a NEC's 16 bit-general purpose micro-controller. The result shows that although the number of AF checking times is reduced, the receiver can find the best frequency faster.

• Journal of The Korean Association For Science Education
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• v.15 no.4
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• pp.459-471
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• 1995

The purpose of this study is to find out the answer to the Question as "What is the meaning of the Science Education?". Semantic analyses were done according to each situations and contexts in science, education and science education. The following result was drawn: It is concluded that science education is the practtical behavior for the human as the purpose, through the science and education as the means and methods.

• 제어로봇시스템학회:학술대회논문집
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• 1991.10a
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• pp.371-375
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• 1991

The purpose of this paper is the design of a controller of electric actuator for high speed underwater vehicle which is robust against hydro load torque. For this purpose, we design the controller of PD & VSC control schemes. Under proper assumption of the hydro load torque, the tracking performances of these schemes are analyzed through the computer simulation, and the results are presented.

• 제어로봇시스템학회:학술대회논문집
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• 1988.10b
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• pp.1022-1027
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• 1988

The author propose a method to realize a self organization in the artificial system. In self organizing system, sub-systems are not constructed as functional parts of the system but cooperate with one another to realize the total system. Each sub-system obtains the local purpose from the global purpose by learning. This function is realized by using a neural network. The validity of this method is confirmed by some simulations.