• 한국잠사학회:학술대회논문집
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• 한국잠사학회 2005년도 제48회 춘계 학술연구 발표회
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• pp.63-64
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• 2005

• 대한전기학회:학술대회논문집
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• 대한전기학회 1997년도 하계학술대회 논문집 D
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• pp.1127-1129
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• 1997

In this paper, we developed to artificial neural network for load characteristic identification of power system. We can acquire active power and reactive power of individual load depending on the variation of voltage and frequency from the experimentation of a dynamic characteristic of load. The data of the experimental results were be used in learning of ANN. A proposed ANN model is applied to analyze the transient stability. To demonstrate the propriety of the power system transient stability with load model using ANN, the simulation of the two-machine five-bus system is carried out.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2017년도 추계학술발표대회
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• pp.542-545
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• 2017

사회는 갈수록 첨단기기로 집약되는데 비해 노인계층의 첨단기기 접근성은 그의 복잡성으로 인해 매우 취약하다. 고령인구의 사회적 활동에 기본이 되는 이동 편의성에서 이러한 복잡성을 해소하고 안전을 제공하기위한 서비스를 고려한다.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2005년도 춘계학술대회논문집
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• pp.270-274
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• 2005

The human beings have increased concern about Energy saving and alternative energy. The power demand has increased the growth of industry and the improvement of life. We have to explore alternate energy sources and utilize effectively domestic resources. The lighting equipments developed Energy saving by using an electric ballast. The load installation should be promoted to rational power management, according to the network, inteligent, and high-function. Therefore, this paper has studied the method of energy saving and consulting.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.672_673
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• 2009

In this paper seeks the parameter which relates with the efficiency from premium efficiency level single-phase induction motor. Also it compares with the parameters and it analyzes and an optimum parameter it seeks by FEM. Consquently, a optimal design is accomplished from the this paper. Also parameters compare efficiency. And it analyzes and studies about optimum parameter by FEM. The sample single-phase induction motor selection selected existing premium level motor. We analyze each parameter using 2-D finite element analysis (FEM). According to Study of losses and Design flow, losses and efficiency can be explain by many parameter. So this paper present optimal parameters. Finally, this paper presents the method which raises the efficiency of premium efficiency level single-phase induction motor.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.1615_1616
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• 2009

LED 조명기구의 광학적, 기구적 설계의 최적화 방안이 여러 가지로 논의 되고 있는 가운데, 본 연구에서는 LED 조명기구 중에서도 점차 활용에 대한 시도가 증가하고 있는 LED 가로등의 적절한 배광을 달성하기 위한 광학 설계를 하였다. 그리고 Lens와 Reflector의 결합이 아닌 Reflector만을 이용한 배광 제어 설계 방법을 제시 하였다. LED 가로등 모듈의 설계는 Photopia를 사용하였고, 도로 적용 시뮬레이션은 Relux를 이용하여 설계결과에 대한 성능을 검증하였다.

• 대한예방의학회:학술대회논문집
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• 대한예방의학회 2002년도 제54차 추계 학술대회 연제집
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• pp.338-339
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• 2002

• 대한예방의학회:학술대회논문집
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• 대한예방의학회 2002년도 제54차 추계 학술대회 연제집
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• pp.279-281
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• 2002

• 전기학회논문지
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• 제58권3호
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• pp.496-501
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• 2009

Interior Permanent Magnet Synchronous Motor (IPMSM) produces two kind of torque that Magnetic and Reluctance torque. The permanent magnet linkage flux ${\Psi}_a$ and d-axis and q-axis inductances have an important influence on the torque characteristic of IPMSM. Thus their accurate prediction is essential for predicting performance aspect such as the torque and flux-weakening capabilities. In this paper, the influence of barrier width on the ${\Psi}_a$ and $L_d$, $L_q$ is calculated by FEM analysis. Predictions are validated by comparison the average torques, using Maxwell Stress Tensor method.

• Journal of Pharmaceutical Investigation
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• 제8권2호
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• pp.1-10
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• 1978

During the course of studies on the production of glutathione from yeast, process development and optimization was carried out. The optimal pH for the extraction of glutathione was found to be 2.5 to 4.0 and the maximum yield for glutathione was obtained when the extraction temperature was 25 to $45^{\circ}C$. The cuprous salt of glutathione was recovered maximally at the range of 2 to 4g of cuprous oxide per 10 Kg of compressed yeast. Further purification was needed for the removal of impurities from glutathione. Cation exchange resin, anion exchange resin and Sephadex G-25 were employed for this purpose. 13 to 15 g of glutathione was obtained from 10 Kg of compressed yeast and the purity was above 99.3%.