September 2011

Stochastic redundancy allocation problem using simulation

  Reliability is one of the main parameters of the products considered to be important to survive in the competitive market. Reliability in its simple form means the probability that a failure may not occur in a given period of time that is, the component performs adequately without failure. The subsystems or components in a system are arranged in series or parallel depending on the space constraint. However,...

Author(s): Y. Santosh Kumar Reddy, C. Nadha Muni Reddy and K. Hema Chandra Reddy

September 2011

Electrochemical properties of metals in cassava fluid

  This study was carried out to investigate and evaluate the electrochemical properties of mild steel (0.6, 1.0 and 1.46 mm), galvanized steel (0.36, 0.6 and 1.24 mm) and aluminium (0.9 and 1.3 mm) sheets exposed to cassava fluid. Corrosion rates of mild steel (10.595 mm/yr), galvanized steel (11.26 mm/yr) and aluminium (9.556 mm/yr) sheets exposed to cassava fluid were got using weight loss technique. The...

Author(s): O. R. Adetunji, P. O. Aiyedun , O. J. Alamu and A. S. Surakat 

September 2011

Ultra low loss of a thermal arrayed waveguide grating (AWG) module in passive optical networks

  In the present paper, high transmission bit rate of a thermal arrayed waveguide grating (AWG) which is composed of lithium niobate (LiNbO3)/polymethyl metha acrylate (PMMA) hybrid materials on a silicon substrate in passive optical networks (PONs) has parametrically analyzed and investigated over wide range of the affecting parameters. We have theoretically investigated the temperature dependent wavelength...

Author(s): Mohammed A. A., Ahmed Nabih Zaki Rashed, Gaber E. S. M. E. and Saad A. A.