• Title/Summary/Keyword: Heo Jong

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The evaluation of uncertainty on the high voltage measurement (고전압 측정의 불확도 평가)

  • Jeong, Joo-Young;Kim, Ik-Soo;Chul, Heo-Jong;Shin, Young-June
    • Proceedings of the KIEE Conference
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    • 2001.07c
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    • pp.1629-1630
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    • 2001
  • The high voltage measuring systems used in the testing systems shall be required to maintain the traceability to the national or international standards by the IEC 60060-2. Also all testing laboratories should prepare the documents evaluating the measurement uncertainty of the tests. By the way, this paper introduces the principal of IEC about the maintenance of traceability and evaluation methode of uncertainty.

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A Study of "Mode Selecting Fuzzy Controller" for a Dynamic System under Irregular Disturbance

  • Yoon, Young-Soo;Kim, Yong-Kwan;Lee, Jong-Bok;Park, Won-Seok;Hoon Heo
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.90.3-90
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    • 2002
  • $\textbullet$ Introduction of fuzzy logic controller for dynamic system under irregular disturbance $\textbullet$ Fuzzy rules by displacement information and the frequency characteristics of the system $\textbullet$ Modal analysis for the frequency informations of the system $\textbullet$ Introduction of mode selecting unit(MSU) based on Fast-Fourier transform(FFT) algorithm $\textbullet$ Piezo ceramic as an actuator of flexible structure

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The Effect of RFID Based Ubiquitous Environment upon Internet Escrow Service (RFID 기반 유비쿼터스 환경의 인터넷 에스크로 서비스 적용 효과)

  • Heo Jeong-Hyeon;Lee Yong-Han;Lee Jong-Tae
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2006.05a
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    • pp.288-290
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    • 2006
  • 본 논문은 RFID 기반 유비쿼터스 환경이 인터넷 에스크로 서비스와 연계 되었을 때 특히, EPCglobal 네크워크에 기반한 EPC IS (Electronic Product Code Information Service)와 연계된 RFID 기반 상품 라이프 사이클 관리 및 추적 기술과 금융 서비스인 인터넷 에스크로 서비스의 상호 연동에 관한 내용을 다룬다.

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Traveling Salesman Problem with Precedence Relations based on Genetic Algorithm (선후행 관계제약을 갖는 TSP 문제의 유전알고리즘 해법)

  • Moon, Chi-Ung;Kim, Gyu-Ung;Kim, Jong-Su;Heo, Seon
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2000.04a
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    • pp.48-51
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    • 2000
  • The traveling salesman problem with precedence relations (TSPPR) is harder than general traveling salesman problem. In this paper we propose an efficient genetic algorithm (GA) to solve the TSPPR. The key concept of the proposed genetic algorithm is a topological sort (TS). The results of numerical experiments show that the proposed GA approach produces an optimal solution for the TSPPR.

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New Bounds using the Solution of the Discrete Lyapunov Matrix Equation

  • Lee, Dong-Gi;Heo, Gwang-Hee;Woo, Jong-Myung
    • International Journal of Control, Automation, and Systems
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    • v.1 no.4
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    • pp.459-463
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    • 2003
  • In this paper, new results using bounds for the solution of the discrete Lyapunov matrix equation are proposed, and some of the existing works are generalized. The bounds obtained are advantageous in that they provide nontrivial upper bounds even when some existing results yield trivial ones.