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. 22 (2009), No. 12

  • Criteria for Explaining a High Bar Movement

    pp. 399-406

    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.22.399

    While the kip movements of expert gymnasts have been explained under the minimum torque-change criterion with assumption of a via-point, the meaning of the via-point has been unclear. On the other hand, expert gymnasts say that their movements are associated with effortless skill to achieve a task, in comparison with a movement without the via-point. We consider an integral of square of joint-torques as the effort cost, in addition to the commanded torque-change cost, and propose two approaches to reproduce the kip movement as follows: 1) a combined criterion that minimizes weighted sum of the torque-change and effort costs without assuming via-points, and 2) a hierarchical criterion that allocates via-points such that the effort cost of whole movement is minimized. The results of numerical analysis suggest that both the approaches can improve predictions of the kip movement compared with the results under the minimum torque-change model alone.
  • Dummy-Based Critical Chain Scheduling in Project Management

    pp. 407-415

    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.22.407

    This paper proposes a new critical chain scheduling method in project management. The authors have already proposed a theoretical model, which provides an optimal total size of dummies to be inserted in the initial project schedule. Dummies, which are occasionally referred to as buffer, are useful to absorb schedule delays caused by a variety of uncertainties. Given the total size of dummies, this study explores for some useful rules under which we should allocate the dummies in the initial project schedule to generate buffered schedule. Some computational experiments derives several important properties of buffered schedules with a view to demonstrating the effectiveness of those rules particularly in critical chain scheduling.
  • Numerical Optimization of H Static Output Feedback Gain by Descent Method

    pp. 416-422

    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.22.416

    In this paper, a numerical optimization method of static output feedback gain for the H control problem is presented. This is a descent method that gives a monotonically nonincreasing sequence of the H performance index starting from a stabilizing gain. A feasible direction is calculated using an inner point of a linear matrix inequality derived from the bilinear matrix inequality with respect to the feedback gain and the Lyapunov matrix. A stabilizing problem can be also treated similarly.

Article Access Ranking

02 Jul. (Last 30 Days)

  1. Production and Technology of Iron and Steel in Japan during 2021 ISIJ International Vol.62(2022), No.6
  2. Role of Interfacial Properties in the Evolution of Non-metallic Inclusions in Liquid Steel ISIJ International Advance Publication
  3. Preface to the Special Issue on “Frontier in Characterization of Materials and Processes for Steel Manufacturing” ISIJ International Vol.62(2022), No.5
  4. Hierarchical Deformation Heterogeneity during Lüders Band Propagation in an Fe-5Mn-0.1C Medium Mn Steel Clarified through in situ Scanning Electron Microscopy ISIJ International Advance Publication
  5. Reduction of CO2 Emissions from Blast Furnace Applying Reactive Coke Agglomerate and Hydrogen Reduction Tetsu-to-Hagané Vol.108(2022), No.6
  6. Wettability of Molten Fe–Al Alloys against Oxide Substrates with Various SiO2 Activity ISIJ International Advance Publication
  7. Application of Heat Transfer Coefficient Estimation Using Data Assimilation and a 1-D Solidification Model to 3-D Solidification Simulation ISIJ International Advance Publication
  8. Comparison of Oxidation Behavior of Various Reactive Elements in Alloys during Electroslag Remelting (ESR) Process: An Overview ISIJ International Advance Publication
  9. Nitrogen Solubility and Gas Nitriding Kinetics in Fe–Cr–Mo–C Alloy Melts under Pressurized Atmosphere ISIJ International Vol.62(2022), No.6
  10. Influence of Al2O3/SiO2 and BaO/Al2O3 Ratios on Rheological and Crystallization Behavior of CaO–BaO–Al2O3-Based Mold Slags ISIJ International Vol.62(2022), No.6

Search Phrase Ranking

02 Jul. (Last 30 Days)

  1. blast furnace
  2. inorganic coating corrosion
  3. blast furnace permeability
  4. blast furnace productivity
  5. chromate free coating
  6. si-killed spring steel
  7. steel
  8. 鉄と鋼
  9. a
  10. aaa