• Title/Summary/Keyword: magnitude controlled

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A Study on Power Variations of Magnitude Controlled Input of Algorithms based on Cross-Information Potential and Delta Functions (상호정보 에너지와 델타함수 기반의 알고리즘에서 크기 조절된 입력의 전력변화에 대한 연구)

  • Kim, Namyong
    • Journal of Internet Computing and Services
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    • v.18 no.6
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    • pp.1-6
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    • 2017
  • For the algorithm of cross-information potential with delta functions (CIPD) which has superior performance in impulsive noise environments, a new method of employing the information of power variations of magnitude controlled input (MCI) in the weight update equation of the CIPD is proposed in this paper where the input of CIPD is modified by the Gaussian kernel of error. To prove its effectiveness compared to the conventionalCIPD algorithm, the distance between the current weight vector and its previous one is analyzed and compared under impulsive noise. In the simulation results the proposed method shows a two-fold improvement in steady state stability, faster convergence speed by 1.8 times, and 2 dB - lower minimum MSE in the impulsive noise situation.

Inertial Dynamic Effect on the Rates of Diffusion-Controlled Ligand-Receptor Reactions

  • Lee, Woo-Jin;Kim, Ji-Hyun;Lee, Sang-Youb
    • Bulletin of the Korean Chemical Society
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    • v.32 no.spc8
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    • pp.2973-2977
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    • 2011
  • It has been known that the inertial dynamics has a little effect on the reaction rate in solutions. In this work, however, we find that for diffusion-controlled reactions between a ligand and a receptor on the cell surface there is a noticeable inertial dynamic effect on the reaction rate. We estimate the magnitude of the inertial dynamic effect by comparing the approximate analytic results obtained with and without the inertial dynamic effect included. The magnitude of the inertial dynamic effect depends on the friction coefficient of the ligand as well as on the relative scale of the receptor size to the distance traveled by the ligand during its velocity relaxation time.

Reduction Characteristics of Electromagnetic Penetration through Narrow Slots in Conducting Screen

  • Park Eun-Jung;Kim Ki-Chai
    • Journal of electromagnetic engineering and science
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    • v.6 no.2
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    • pp.130-134
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    • 2006
  • This paper presents the reduction characteristics of penetrated electromagnetic fields through a narrow slot in a planar conducting screen of infinite extent. When a plane wave is excited to the narrow slot, the aperture electric field is controlled by the parallel wire or parallel plate connected on the slot. The magnitude of penetrated electromagnetic fields through a narrow slot is controlled by electric field distributions on the slot. An integral equation for the aperture electric field on narrow slots is derived and solved by applying Galerkin's method of moments. The results show that the magnitude of the penetrated electromagnetic field can be effectively reduced by installing the parallel wire or parallel plate on the slot.

REDUCTION CHARACTERISTICS Of ELECTROMAGNETIC PENETRATION THROUGH MARROW SLOTS BY RESISTIVE SHEETS LOADING (저항시트 장하에 의한 슬릿 침투 전자파의 저감 특성)

  • Park, Eun-Jung;Ju, Chang-Hyun;Kim, Ki-Chai
    • Proceedings of the Korea Electromagnetic Engineering Society Conference
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    • 2005.11a
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    • pp.433-436
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    • 2005
  • This paper presents the reduction methods of penetrated electromagnetic fields through a narrow slot aperture in a planar conducting screen of infinite extent. When a plane wave is excited to the narrow slot, the aperture electric field is controlled by the resistive sheets loaded on the slot. The magnitude of penetrated electromagnetic fields through a narrow slot is controlled by electric field distributions on the slot aperture. The results show that the magnitude of the penetrated electromagnetic field can be effectively reduced by the resistive sheets on the slot aperture.

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EDUCATION OF ELECTROMAGNETIC PENETRATION THROUGH NARROW SLOTS IN CONDUCTING SCREEN BY PARALLEL PLATE LOADING (평행평판 장하에 의한 슬릿 침투 전자파의 저감 특성)

  • Park, Eun-Jung;Ju, Chang-Hyun;Kim, Ki-Chai
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2005.05a
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    • pp.66-68
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    • 2005
  • This paper presents the reduction characteristics of penetrated electromagnetic fields through a narrow slot aperture in a planar conducting screen of infinite extent. When a plane wave is excited to the narrow slot, the aperture electric field is controlled by the parallel plate connected on the slot. The magnitude of penetrated electromagnetic fields through a narrow slot is controlled by electric field distributions on the slot aperture. An integral equation for the aperture electric field on narrow slots is derived and solved by applying Galerkin's method of moments. The results show that the magnitude of the penetrated electromagnetic field can be effectively reduced by installing the parallel plate on the slot aperture.

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Design of Radial Force Control System for BLSRM (베어링리스 SRM의 축방향 지지력 제어 시스템 설계)

  • Park, Tae-Hub;Wang, Huijun;Lee, Dong-Hee;Ahn, Jin-Woo
    • Proceedings of the KIEE Conference
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    • 2009.07a
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    • pp.865_866
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    • 2009
  • In this paper, a novel structure Bearingless SRM with hybrid stator poles is proposed. The motor torque can be controlled independently from radial force control. Analytical models of torque and radial force for proposed structure are explained. Based on these models, control scheme of desired radial force is proposed. In this control method, the magnitude of force can be controlled in arbitrary direction and magnitude by selecting some combinations of radial force windings. The validities of structure and control method are verified by the experimental results when motor is at standstill and running.

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Reduction Characteristics of Electromagnetic Penetration Through Narrow Slots by Resistive Sheet Loading (평행 손실판 장하에 의한 슬릿 침투 전자파의 저감 특성)

  • Cho, Jun-Ho;Park, Eun-Jung;Kim, Kyung-Bong;Kim, Ki-Chai
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2007.05a
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    • pp.214-217
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    • 2007
  • This paper presents a reduction method of penetrated electromagnetic fields through a narrow slot with resistive sheet in a planar conducting screen of infinite extent. When a plane wave is excited to the narrow slot, the aperture electric field is controlled by the parallel plates connected on the slot. The magnitude of penetrated electromagnetic fields through the narrow slot is controlled by the electric field distribution on the slot. The results show that the magnitude of the penetrated electromagnetic field can be effectively reduced by installing the resistive plates on the slot.

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A Study on the 2nd exitation method for CVCF Generation of doubly-fed induction Generator (권선형 유도 발전기 CVCF 발전을 위한 2차 여자 제어법에 관한 연구)

  • Ahn, Jin-Woo;Kim, Chul-Woo;Hwang, Young-Moon
    • Proceedings of the KIEE Conference
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    • 1988.11a
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    • pp.341-344
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    • 1988
  • This paper derives a condition foe constant voltage i constant frequency generation of doubly-fed induction generator. The condition is varied by the magnitude of output voltage, load current and its power factor, slip of the machine. Magnitude of output voltage is controlled by exiting voltage which is caculated by derived equation from operating condition. frequency of output voltage is controlled by injecting slip frequency to the rotor which is the difference between wanted output frequency and rotor frequency.

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Optimum Conditions of Adaptive Equalizers Based on Zero-Error Probability (영확률에 기반한 적응 이퀄라이져의 최적조건)

  • Kim, Namyong;Lee, Gyoo-Yeong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.40 no.10
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    • pp.1865-1870
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    • 2015
  • In signal processing, the zero-error probability (ZEP) criterion and related algorithm (MZEP) outperforms MSE-based algorithms and yields superior and stable convergence in impulsive noise environment. In this paper, the analysis of the relationship with MSE criterion proves that ZEP criterion has equivalent optimum solution of MSE criterion. Also this work reveals that the magnitude controlled input of MZEP algorithm plays the role in keeping the optimum solution undisturbed from impulsive noise.

REDUCTION CHARACTERISTICS Of ELECTROMAGNETIC PENETRATION THROUGH NARROW SLOTS BY RESISTIVE SHEETS LOADING (장하 저항시트의 구조변화에 따른 슬릿 침투 전자파 저감특성)

  • Park, Eun-Jung;Ju, Chang-Hyun;Kim, Ki-Chai;Kim, Lee-Kook
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2005.11a
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    • pp.107-110
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    • 2005
  • This paper presents the reduction methods of penetrated electromagnetic fields through a narrow slot aperture in a planar conducting screen of infinite extent. When a plane wave is excited to the narrow slot, the aperture electric field is controlled by the resistive sheets loading on the slot. The magnitude of the penetrated electromagnetic fields through a narrow slot is controlled by electric field distributions on the slot aperture. The results show that the magnitude of the penetrated electromagnetic field can be effectively reduced by the resistive sheets on the slot aperture.

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