Volume 3, Issue 1, February 2014

  • Influence of pH on the Electrochemical Deposition of Composite Coatings in Copper Matrix with Tio2 Nanoparticles

    Samira Salehi, Masoud Delgosha, Soheil Sharifi

    Issue: Volume 3, Issue 1, February 2014
    Pages: 1-4
    Received: 27 November 2013
    Published: 30 January 2014
    Abstract: Cu-nanoTiO2 composite coatings electroplated from copper sulfate bath were obtained and characterized.The paper presents the influence of the different pH of Cu– TiO2 coatings obtained at DC current density. The pHwere 0.5and2in electroplating bath.The surface morphology andcomposition of layers were studied by scanning electron microscopy (SEM) an... Show More
  • Determination of Effective Photon Lifetime in Nitrogenic Laser in One and Two Dimension

    S. N. Hosseinimotlagh, M. T. Yazdani, H. Zare

    Issue: Volume 3, Issue 1, February 2014
    Pages: 5-11
    Received: 5 March 2014
    Accepted: 12 April 2014
    Published: 10 May 2014
    Abstract: Since one of the most valuable measurable parameters in laser, called effective cavity lifetime , gives useful information about laser, this paper aims to study the description of it dependency, τ_ph^eff, on geometrical characteristics of N2-laser, electrodes length and amplifier gap separation. First based on the studies carried out on it , an o... Show More