• 제목/요약/키워드: shin-huh

검색결과 522건 처리시간 0.031초

입력 제한조건을 갖는 이동구간(Receding-Horizon) 예측제어 (Receding-Horizon Predictive Control with Input Constraints)

  • 신현창;김진환;허욱렬
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1995년도 하계학술대회 논문집 B
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    • pp.777-780
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    • 1995
  • Accounting for actuator nonlinearities in control loops has often been perceived as an implementation issue and usually excluded in the design of controllers. Nonlinearities treated in this paper are saturation, and they are modelled as an inequality constraint. The CRHPC(Constrained Receding Horizon Predictive Control) with inequality constraints algorithm is used to handle actuator rate and amplitude limits simultaneously or respectively. Optimum values of future control signals are obtained by quadratic programming. Simulated examples show that predictive control law with inequality constraints offers good performance as compared with input clipping.

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The Effect of Hydrogen Peroxide-Treated Metallothionein on the Hepatic Xanthine Oxidase Activity

  • Huh, Keun;Shin, Uk-Seob;Lee, Sang-Il
    • BMB Reports
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    • 제28권6호
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    • pp.490-493
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    • 1995
  • We investigated the effect of hydrogen peroxide-treated metallothionein on the hepatic xanthine oxidase activity in vitro. When the metallothionein was preincubated with 1 mM of hydrogen peroxide, the activity of xanthine oxidase and type conversion were elevated dose-dependently by the addition of metallothionein into the reaction mixture. While increasing the treatment of hydrogen peroxide to the $50{\mu}g$of metallothionein, the xanthine oxidase activity and type conversion ratio were remarkably elevated dose dependently compared to the control. When cadmium ion was added to the reaction mixture, the increasing pattern of the enzyme activity was similar to the effect of hydrogen peroxide-treated metallothionein. DTT or penicillamine restored the increasing activity and type conversion of xanthine oxidase by the cadmium ion to the control level.

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태변성 복막염 3례 (Three Cases of Meconium Peritonitis)

  • 이영환;안수호;신손문;허영수
    • Journal of Yeungnam Medical Science
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    • 제8권1호
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    • pp.191-197
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    • 1991
  • Meconium peritonitis is an aseptic peritonitis caused by spill of meconium in the abdominal cavity through one or several intestinal perforations which have taken place during intrauterine life or early neonatal life. We experienced three cases of meconium peritonitis with ileal perforation in two cases 1 day-old male neonate and 2 day-old male neonate, respectively, which had the chief complaint of vomiting and abdominal distension, Literatures are reviewed, briefly.

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철도차량차체 경량화를 위한 소재대체설계기술 (Introduction to the material substitution design method for the weight reduction of rolling stock carbody)

  • 권태수;구정서;허신
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2003년도 추계학술대회 논문집(III)
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    • pp.446-454
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    • 2003
  • This paper derived a theoretical method to estimate structural characteristics of carbody members when material substitution designs were performed, and verified the theoretical method with finite element analyses. For important factors in rolling stock design, such as bending stiffness, natural frequency, bending strength and buckling strength, some performance indices to estimate structural behaviors were developed in order to derive an equivalent design in spite of material substitutions. The developed method was used to reduce the weights of carbody components, as example problems, by substituting the aluminium alloy for the structural steel. The analysis results of the examples show that the proposed technique gives a reasonable initial guess in the case of a material substitution design.

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D-Erythroascorbic acid regulates cyanide-resistant respiration in Candida albicans

  • Lee, Jung-Shin;Huh, Won-Ki;Kang, Sa-Ouk
    • 한국생물물리학회:학술대회논문집
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    • 한국생물물리학회 2001년도 학술 발표회 진행표 및 논문초록
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    • pp.42-42
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    • 2001
  • Candida albicans possess cyanide-resistant respiratory pathway, which is mediated by alternative oxidase. The activity of alternative oxidase has been found to be dependent on several regulatory mechanisms. In order to investigate the influence of D-erythroascorbic acid on respiration of C. albicans, the respiratory activity of the cells was measured with oxygen monitor. ALO1 is known to encode D-arabinono-1,4-lactone oxidase that catalyses the final step of D-erythroascorbic acid biosynthesis in C. albicans.(omitted)

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Transparent OLED Lighting Panel Design Using Two-Dimensional OLED Circuit Modeling

  • Han, Jun-Han;Moon, Jaehyun;Cho, Doo-Hee;Shin, Jin-Wook;Joo, Chul Woong;Hwang, Joohyun;Huh, Jin Woo;Chu, Hye Yong;Lee, Jeong-Ik
    • ETRI Journal
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    • 제35권4호
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    • pp.559-565
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    • 2013
  • In this work, we develop a simulation method to predict a two-dimensional luminance distribution method using a circuitry simulation. Based on the simulation results, we successfully fabricate large area ($90mm{\times}90mm$) transparent organic light-emitting diode panels with high luminance uniformity.