• 제목/요약/키워드: Res

검색결과 1,260건 처리시간 0.036초

정전비용을 고려한 신재생에너지원의 최적 연계 용량 및 연계 위치 결정에 관한 연구 (Determining Optimal Installed Capacity and the Interconnected Bus of Renewable Energy Sources Considering the Cost of Energy Not Supplied)

  • 김성열;이성훈;김진오
    • 전기학회논문지
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    • 제61권10호
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    • pp.1393-1398
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    • 2012
  • Due to environmental regulation and technical improvements, renewable energy sources (RES) are increasingly penetrated and operated in power systems. Clean energy technologies have become cost-competitive with conventional power systems, and in the near future, the generation cost of RES is expected to approach grid parity. In this situation, it should be considered an extraordinarily important issue to be maximized resulting in utilization of RES as well as to develop technologies for efficiency improvement of RES. Therefore, in this paper, the method for determining an optimal installed capacity and interconnected location of RES is proposed in order to minimize the cost of energy not supplied, which can contribute to improve distribution reliability.

NiCr 박막저항의 제작 및 특성연구 (The fabrication and study of NiCr thin film resister)

  • 류제천;김동진;박종완;김용일;김규태;송양섭;유광민
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2000년도 하계학술대회 논문집 C
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    • pp.1640-1642
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    • 2000
  • We were fabricated of NiCr thin film resitors(TFR) on $Al_{2}O_3$ substrates by dc magnetic sputtering, system. The characteristics of electrical resistance by substrates & annealing condition on the resistors were studied by X-ray Diff. and SEM, ESCA.

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반도체 및 금속의 면저항, 비저항 측정시스템의 자동화 (The automatic measurement system of sheet resistance and resistivity of semiconductor and metals)

  • 류제천;김동진;강전홍;김규태;송양섭;유광민
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2000년도 하계학술대회 논문집 D
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    • pp.2766-2768
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    • 2000
  • We were made the automatic measurement system of sheet resistance and resistivity of semiconductor and metals with accuacy. The use of this system measured SRM(Standard Reference Materials) silicon wafers which calibrated by NIST. From this result. this system operated with the standard deviation within maximum ${\pm}$1% error.

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앙상블 학습 알고리즘을 이용한 컨벌루션 신경망의 분류 성능 분석에 관한 연구 (A Study on Classification Performance Analysis of Convolutional Neural Network using Ensemble Learning Algorithm)

  • 박성욱;김종찬;김도연
    • 한국멀티미디어학회논문지
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    • 제22권6호
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    • pp.665-675
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    • 2019
  • In this paper, we compare and analyze the classification performance of deep learning algorithm Convolutional Neural Network(CNN) ac cording to ensemble generation and combining techniques. We used several CNN models(VGG16, VGG19, DenseNet121, DenseNet169, DenseNet201, ResNet18, ResNet34, ResNet50, ResNet101, ResNet152, GoogLeNet) to create 10 ensemble generation combinations and applied 6 combine techniques(average, weighted average, maximum, minimum, median, product) to the optimal combination. Experimental results, DenseNet169-VGG16-GoogLeNet combination in ensemble generation, and the product rule in ensemble combination showed the best performance. Based on this, it was concluded that ensemble in different models of high benchmarking scores is another way to get good results.