• 한국디지털정책학회:학술대회논문집
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• 2004.05a
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• pp.403-419
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• 2004

이글은 한국은행 산업분류 세분류 404 부문 중 정보통신부문에 해당하는 (1) 유선통신기기, (2) 무선통신 및 방송기기, (3) 컴퓨터 및 주변기기, (4) 통신시설, (5) 초고속망서비스, (6) 부가통신, (7) 소프트웨어 개발 공급, (8) 컴퓨터관련 서비스 분야를 중심으로 대기업과 중소기업의 고용창출 효과를 활동 상품 틀이라는 분석도구를 이용해 파악해 보는데 있다. 분석결과, 정보통신 분야별 산업활동에 대응하는 대기업의 고용승수는 컴퓨터 관련 서비스업 (0.0196), 소프트웨어 개발공급업 (0.0186), 유선통신기기업 (0.0152), 통신시설업 (0.0146), 컴퓨터 및 주변기기업 (0.0132) 등의 순으로 높게 나타났다. 그리고 정보통신 분야별 산업활동에 대응하는 중소기업의 고용승수는 통신시설업 (0.0165), 컴퓨터 빛 주변기기업 (0.0151), 유선 통신기기업 (0.0143), 컴퓨터관련서비스업 (0.0126) 등의 순으로 높게 나타났다. 이와 같이 분석된 정보 통신 분야별로 대기업과 중소기업의 고용창출효과는 현실적으로 직면해 있는 IT 분야의 고용창출 문제를 해결하는데 중요한 정보로 활용될 수 있을 것으로 판단된다.

• The Korean Journal of Applied Statistics
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• v.28 no.2
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• pp.189-200
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• 2015

Stationary bootstrapping is applied to a Lagrangian multiplier (LM) test to test market microstructure noise (MMN) in financial asset prices. A Monte-Carlo experiment shows that the bootstrapping method improves the size of the original LM test which has some size distortion for conditional heteroscedastic models. The proposed test is illustrated for real data sets like KOSPI index and Won-Dollar exchange rate.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.25 no.6
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• pp.469-476
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• 2012

In this paper, a finite element domain decomposition method using local and mixed Lagrange multipliers for a large scal structural analysis is presented. The proposed algorithms use local and mixed Lagrange multipliers to improve computational efficiency. In the original FETI method, classical Lagrange multiplier technique was used. In the dual-primal FETI method, the interface nodes are used at the corner nodes of each sub-domain. On the other hand, the proposed FETI-local analysis adopts localized Lagrange multipliers and the proposed FETI-mixed analysis uses both global and local Lagrange multipliers. The numerical analysis results by the proposed algorithms are compared with those obtained by dual-primal FETI method.

• Journal of the Korean Institute of Telematics and Electronics D
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• v.35D no.10
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• pp.107-115
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• 1998

A multiplier bit-pair recoding technique derived from Booth algorithm is used as an effective method that can carry out a fast binary multiplication regardless of a sign of both multiplicand and multiplier. In this paper, we propose an implementation of an optical high-speed multiplier which consists of a symbolic substitution adder and an optical multiplication algorithm, which transforms and enhances the multiplier bit-pair recoding algorithm to be fit for optical characteristics. Specially, a symbolic substitution addition rules are coded with a dual-rail logic, and so the complement of the logic of the symbolic substitution adder is easily obtained with a shift operation because it is always present. We also construct the symbolic substitution system which makes superposition image by superimposing two shifted images in a serial connection and recognizes a reference image by feeding this superimposed image to a mask. Thus, the optical multiplier, which is compared with a typical system, is implemented to the smaller system by reducing the number of optical passive elements and the size of this system.

• Journal of The Geomorphological Association of Korea
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• v.18 no.1
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• pp.1-13
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• 2011

The catch canal for a natural drainage, the excavation of tunnel for a stable irrigation, the artifical channelization of yazoo stream, many kinds of the pumping and drainage systems are found around Daedong-myeon, Gimhae-si. It could be confirmed that the deveolpment, maintenance and management of those facilities in the floodplain are mainly controlled by the geomorphological conditions. In case of Unha-chon, especially, the water can always be supplied only by openning the gate of irrigation tunnel and the Woldang pumping station as the largest pumping station in this area can supply water to Unha-chon area directly from the main river, Nakdong-gang. Because the Gamnae-chon which was an upper reach of the Unha-chon and is now connected to the Nakdong-gang through the Deoksan catch canal, the damage of flood and the burden of drainage are mitigated at the lower area of the Unha-chon.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.532-533
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• 2008

연계지역 전력시장 간의 에너지 거래는 전체 전력시장의 사회적 편익을 향상시키기 위해 이루어진다. 기존의 연계지역 전력시장 간시장 최적화 문제를 다루는 중앙처리 접근방식은 경쟁적 전력시장 환경하에서 적합한 모델이 아니다. 본 논문은 연계지역 전력시장 문제를 다루기 위해 보완 라그랑지안 승수 기법(Augmented Lagrangian Relaxation) 기반의 분산처리 최적화 방법을 제시한다. Block Coordinate Descent(BCD) 분산처리 기법이 보완 라그랑지안 승수의 최적화 문제를 분리하기 위해 적용된다. 연계시장 모델을 구현한 사례연구를 통해 제시된 알고리즘의 효용성을 입증한다.

• JOURNAL OF ELECTRICAL WORLD
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• s.224
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• pp.2-6
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• 1995

• 산림경영
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• s.46
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• pp.8-11
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• 1989

• 발명특허
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• v.14 no.5 s.159
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• pp.6-7
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• 1989

• 산림경영
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• s.57
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• pp.16-20
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• 1990