Volume 17, Issue 4

 

ارسال های اخیر

  • Flow Field Study Over the Wing of a Fighter-Type Aircraft Model 

    Abbasi Hoseini, A.؛ Soltani, M. R. (Materials and Energy Research Center, 2004-12-01)
    An extensive experimental investigation to study the flow structure over the wing of a fighter type configuration model has been conducted. The model used for this study was similar to the High Alpha Research Vehicle (HARV) ...

  • An Upper Bound Approach for Analysis of Hydroforming of Sheet Metals 

    Emami, M. R.؛ Bagherzadeh, M.؛ Assempour, A. (Materials and Energy Research Center, 2004-12-01)
    Considering a kinematical velocity admissible field, the upper bound method has beenused for predicting the amount of pressure in hydroforming of sheet metals. The effects of workhardening, friction and blank size have ...

  • Microencapsulation of Orange Oil by Complex Coacervation and its Release Behavior (REASEARCH NOTE) 

    Najafi, Arash؛ Zivdar, M.؛ Vahabzadeh, F. (Materials and Energy Research Center, 2004-12-01)
    Microencapsulation of liquid orange oil as a common flavoring agent in food industries by complex coacervation in a gelatin – gum arabic polymeric wall system was studied. At a fixed ratio of 10% w/v as concentration of ...

  • Benchmarking Sustainability with Respect to Transportation Supply and Demand 

    Rassafi, Amir Abbas؛ Vaziri, M. (Materials and Energy Research Center, 2004-12-01)
    This paper is an endeavor to quantify the concept of sustainable transportation. The prevailing idea in the context of sustainable development (SD) emphasizes on the reduction of transportation demand in order to reduce ...

  • An Efficient Algorithm to Allocate Parts to Cells Minimizing Total Tardiness and Idle Times 

    Safaei, N.؛ Godratnama, A. (Materials and Energy Research Center, 2004-12-01)
    In the design of a cellular manufacturing system (CMS), one of the important problems is the cell formation in the form of machine grouping and parts family. This paper investigates an allocation of parts to common and ...

  • Performance of Infilled Profiled Steel Sheet Dry Board PSSDB Load Bearing Wall (TECHNICAL NOTE) 

    Hamid, Arzan Abdul؛ Wan Badaruzzaman, Wan Hamidon (Materials and Energy Research Center, 2004-12-01)
    This paper describes the testing of Profiled Steel Sheet Dry Board (PSSDB) load bearing wall system. Experimental tests were conducted on various PSSDB wall samples, with and without infill materials to study its effect ...

  • Resistance to Flow in a V-Shaped Bottom Channel 

    Mohammadi, M. (Materials and Energy Research Center, 2004-12-01)
    Water flow in open channels is always subject to the resistance to flow and energy dissipation. For design purposes, one of the needed variables is the hydraulic resistance coefficient. For this mean, the influence of ...

  • Optimization of Array Factor in Linear Arrays Using Modified Genetic Algorithm 

    Mafi-Nezhad, K.؛ Rashed-Mohassel, Jalil؛ Varahram, A. (Materials and Energy Research Center, 2004-12-01)
    The array factor (sidelobe level, SLL) of a linear array is optimized using modified continuous genetic algorithms in this work. The amplitudes and phases of the currents as well as the separation of the antennas are all ...

  • Estimation of Kinetic Parameters of Coking Reaction Rate in Pyrolysis of Naphtha 

    Omidkhah, M.؛ Modarres, J.؛ Towfighi Darian, J.؛ Niaei, Aligholi (Materials and Energy Research Center, 2004-12-01)
    The run length of cracking furnaces is limited by the formation of coke on the internal skin of the reactor tubes. The reaction mechanism of thermal cracking of hydrocarbons is generally accepted as free-radical chain ...