Volume 4, Issue 1

 

ارسال های اخیر

  • Effect or Inoculation on Microstructure and Properties of Low C-Mn and Low Alloy Steels 

    Sadrnezhaad, S.K. (Materials and Energy Research Center, 1991-05-01)
    Effect of the addition of various inoculants on the morphology and mechanical properties of low C-Mn and low alloy steel samples is studied by thermal and mechanical processing of the samples after solidification. According ...

  • Application to Adaptive Control to Synchronous Machine Excitation 

    Malik, O. P. (Materials and Energy Research Center, 1991-05-01)
    Self-tuning adaptive control technique has the advantage of being able to track the system operating conditions so that satisfactory control action can always be produced. Self-tuning algorithms can be implemented easily. ...

  • Further Observations on Blocking Zeros in Linear Muitivariabie systems (RESEARCH NOTE). 

    Lucas, C. (Materials and Energy Research Center, 1991-05-01)
    While attempting to clarify the confusion concerning the conceptualization of "blocking zeros" in state space in the recent literature, some new observations are made on the relationship between pole-zero cancellation and ...

  • Electrochemical Noise Analysis of Anaerobic (Bacterial) Corrosion of Steel 

    Van Bronswijk, W.؛ Barton, A. P.؛ Saatchi, A. (Materials and Energy Research Center, 1991-05-01)
    Corrosion of structural steel in an SRB containing environment for as long as 9 months, is studied using the Electrochemical Noise Analysis technique. The results show that the activity of the system, which was very low ...

  • A Microprocessor-Based Hybrid Duplex Fault-Tolerant System 

    Hope, G.S.؛ Malik, O. P. (Materials and Energy Research Center, 1991-05-01)
    Reliability is one of the fundamental considerations in the design of industrial control equipment. The microprocessor-based Hybrid Duplex fault-tolerant System (HDS) proposed in this paper has high reliability to meet ...

  • A Robust Control Design Technique for Discrete-Time Systems 

    Katebi, S.D. (Materials and Energy Research Center, 1991-05-01)
    A robust state feedback design subject to placement of the closed loop eigenvalues in a prescribed region of unit circle is presented. Quantitative measures of robustness and disturbance rejection are investigated. A ...

  • Phase-Transformation of Gamma-Allumina to Alpha-Alumina as an Industrial Catalyst Support 

    Wainwright, M.S. (Materials and Energy Research Center, 1991-05-01)
    The phase transformation of aluminum hydrates yields various forms of alumina (d, q, K) and eventually alpha-alumina. The decrease in the specific surface area of alumina upon heat treatment is due to changes in crystalline ...

  • Prediction of Thermodynamic Properties of Refrigerants in the Superheated Ragion 

    Moshfeghian, M. (Materials and Energy Research Center, 1991-05-01)
    This paper demonstrates the capabilities of the PFGC-MES equation of state (EOS) for calculating the thermodynamic properties in the superheated region for pure refrigerants. In addition the ability of this EOS is also ...

  • A Database Model for Medical Consultation 

    Anvari, M. (Materials and Energy Research Center, 1991-05-01)
    The database model presented in this paper is suitable for application in which queries may require non-crisp references to certain attributes. The data item (attribute) values may be crisp or fuzzy. For instance, such ...