Transactions of the Institute of Systems, Control and Information Engineers
New Arrival Alert : OFF

You can use this feature after you logged into the site.
Please click the button below.

Log in / Sign up
ONLINE ISSN: 2185-811X
PRINT ISSN: 1342-5668

Transactions of the Institute of Systems, Control and Information Engineers Vol. 23 (2010), No. 4

  • Control System Synthesis to Prevent Undesirable Transient Responses after a Failure for Safety

    pp. 65-73

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.23.65

    This paper presents control system synthesis to prevent undesirable transient responses after a device failure for safety against deviation from control range. It is based on multiobjective design for possible contexts and switchings by a failure to optimize the normal-case performance.
  • Identification of Crack Profiles using Database and Greedy Search Inverse Analysis Arising in Eddy Current Testing

    pp. 74-82

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.23.74

    This paper is concerned with an optimization method to recover crack profiles from measurement signals obtained by eddy current testing. This inversion technique uses Greedy search algorithm to find the optimum of least-square error between measurement signals and simulation data. In creating simulation data, a database called ECT database is used. This database is constructed as a set of parameters-to-output mapping data, by using hybrid FEM-BEM simulator derived from Maxwell’s equations. Numerical experimental results show the effectiveness and feasibility of this method.
  • Reinforcement Learning of Optimal Supervisor based on the Worst-Case Behavior

    pp. 83-89

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.23.83

    The supervisory control initiated by Ramadge and Wonham is a framework for logical control of discrete event systems. In the original supervisory control, the costs for occurrence and disabling of events have not been considered. Then, the optimal supervisory control based on quatitative measures has also been studied. This paper proposes a synthesis method of the optimal supervisor based on the worst-case behavior of discrete event systems. We introduce the new value functions for the assigned control patterns. The new value functions are not based on the expected total rewards, but based on the most undesirable event occurrence in the assigned control pattern. In the proposed method, the supervisor learns how to assign the control pattern based on reinforcement learning so as to maximize the value functions. We show the efficiency of the proposed method by computer simulation.

Article Access Ranking

31 Oct. (Last 30 Days)

  1. Perspective toward Long-term Global Goal for Carbon Dioxide Mitigation in Steel Industry Tetsu-to-Hagané Vol.105(2019), No.6
  2. Formation, Evolution and Removal of MgO·Al2O3 Spinel Inclusions in Steel ISIJ International Advance Publication
  3. Preface to the Special Topics on “EMECR2017: International Conference on Energy and Material Efficiency and CO2 Reduction in the Steel Industry 2017” ISIJ International Vol.60(2020), No.10
  4. Transformation from Ferrite to Austenite during/after Solidification in Peritectic Steel Systems: an X-ray Imaging Study ISIJ International Advance Publication
  5. Composition Changes of Inclusions by Reaction with Slag and Refractory: A Review ISIJ International Vol.60(2020), No.9
  6. Effect of Wettability on Penetration and Flotation Behavior of a Particle in Refining Process Tetsu-to-Hagané Vol.106(2020), No.10
  7. Faster Generation of Nanoporous Hematite Ore through Dehydration of Goethite under Vacuum Conditions ISIJ International Advance Publication
  8. Development of Mold Flux for Continuous Casting of High-Carbon Steel Bloom Tetsu-to-Hagané Advance Publication
  9. Effect of Addition ZrO2 Nanoparticles on Inclusion Characteristics and Microstructure in Low Carbon Microalloyed Steel ISIJ International Vol.60(2020), No.9
  10. Ferrite Transformation from Fe-0.3N Austenite ISIJ International Advance Publication

Search Phrase Ranking

31 Oct. (Last 30 Days)

  1. blast furnace
  2. steel
  3. blast furnace permeability
  4. blast furnace productivity
  5. steel quality
  6. continuous casting of copper alloys
  7. level fluctuation
  8. mas rolling
  9. quality
  10. sliver