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. 1 (1988), No. 6

  • Transient Analysis of Two-Layered Hyperbolic Distributed Parameter Systems

    pp. 187-193

    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.1.187

    Intending to design the vibration isolator systems or to identify the vibration systems, the impulse response for two-layered hyperbolic distributed parameter systems are derived from the transient analysis. By calculating the response waves of the two-layered systems, the relation between response waves and system parameters is considered. The validity of the impulse response for two-layered hyperbolic distributed parameter systems has been confirmed by the results of the actual two-layered systems. It is also shown from the digital simulation that more effective isolation of vibrations can be obtained from combination of the first layer parameters and that of second ones.
  • Generalization of ILQ Method for the Design of Optimal Servo Systems

    pp. 194-203

    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.1.194

    Recently, a new design method of optimal servo systems, called “ILQ Method”, has been developed by applying the pole placement method. This paper treats its generalization for relaxation of a restriction imposed on the system in its original version. By a natural extension of the selection method of design parameters as well as the pole placement algorithm, the restriction can be relaxed significantly. Under a relaxed condition, the design parameters can be chosen so as to specify each output response in a certain class, and in addition, the optimal gain achieving such specified output responses can be expressed explicitly in terms of the system matrices and the design parameters. Some numerical examples are also illustrated to show the validity of the design method.
  • A Consideration on Comparison of the Interpolation Methods for the Preparation of Topographic EEG

    pp. 204-213

    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.1.204

    Electroencephalogram (EEG) analysis is an important means of obtaining detailed information on the brain functions which CT (computed tomography) or angiography cannot provide. To help grasp the brain functions visually and intuitively in diagnosis and treatment planning of brain diseases, the computerized topographic EEG (or topographic EEG mapping), giving a two-dimensional image of EEG amplitude or frequency distribution on the entire scalp through the use of a computer, has recently been used. At present, several types of interpolation methods are available for the. interpolation process required by the topographic EEG mapping. However, very few reports have been published regarding the evaluation of the current interpolation method.
    This paper attempts to evaluate four interpolation methods from the viewpoints of interpolation accuracy and computational speed through experiments using actual EEG data. The four methods studied here are : “two-dimensional sampling function” “linear interpolation”, “bicubic lofted surface” and “Coons' bilinear curved surface”. As a result, the interpolation by Coons' bilinear curved surface is found to be most accurate among the four methods. So it is considered to be optimum when a sufficient length of time is available for computation. Accuracy of the linear interpolation method is slightly inferior compared with that of the Coons' bilinear curved surface method, but this would pose no problems in practical use. Furthermore, computational speed of the linear interpolation method is the highest among the four, then the method is considered to be most suitable when interpolation results are needed whithin a short time.
  • Stabilization of Repetitive Control System by Finite Spectrum Assignment Method

    pp. 214-221

    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.1.214

    This paper is concerned with stabilization of modified repetitive control systems with a low-pass filter in the servocompensator. Since the modified repetitive control system is a retarded-type delay system, the finite. spectrum assignment method is applicable for stabilization of the systen. The necessary and sufficient condition for spectral controllability of the modified repetitive control system is presented. A scheme of stabilization by finite spectrum assignment is presented. Furthermore, this stabilization method is applied to repetitive control system for plant with delay.

Article Access Ranking

25 Jan. (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. In-Situ Observation Experimental Study on the Agglomeration and Dispersion of Particles at the Interface of High-temperature Melts ISIJ International Advance Publication
  3. Review on the High-Temperature Thermophysical Properties of Continuous Casting Mold Fluxes for Highly Alloyed Steels Tetsu-to-Hagané Vol.107(2021), No.1
  4. Quantitative Evaluation of Solute Hydrogen Effect on Dislocation Density in a Low-carbon Stable Austenitic Stainless Steel ISIJ International Advance Publication
  5. Improved Hydrogen Embrittlement Resistance of Steel by Shot Peening and Subsequent Low-temperature Annealing ISIJ International Advance Publication
  6. Development and Prospects of Refining Techniques in Steelmaking Process ISIJ International Vol.60(2020), No.12
  7. In situ Observation of Reduction Behavior of Multicomponent Calcium Ferrites by XRD and XAFS Tetsu-to-Hagané Advance Publication
  8. Preface to the Diamond Jubilee Issue on “Selected Topics in Iron and Steel and Their Processing toward the New Steel Age” ISIJ International Vol.60(2020), No.12
  9. Effects of Residual Stress on Hydrogen Embrittlement of a Stretch-Formed Tempered Martensitic Steel Sheet ISIJ International Advance Publication
  10. Intraparticle Temperature of Iron-Oxide Pellet during the Reduction Tetsu-to-Hagané Vol.60(1974), No.9

Search Phrase Ranking

25 Jan. (Last 30 Days)

  1. blast furnace
  2. 西山記念技術講座
  3. blast furnace permeability
  4. j. f. elliott
  5. blast furnace burden distribution
  6. blast furnace productivity
  7. bottom dross
  8. carbon-containing pellet
  9. cog blast furnace injection
  10. cr2o3 al2o3