List of Articles Open Access Article Abstract Page Full-Text 1 - Editorial Open Access Article Abstract Page Full-Text 2 - The Effect of Heat Treatment on the Structure of PEO Coating on Ti-6Al-4V Alloy M Garshasbi A Shokuhfar M Ghanbari Haghighi B Karbakhsh Open Access Article Abstract Page Full-Text 3 - Effects of HFRW Variables on Weldded Joint Quality of the Ferritic Stainless Steel to Cr-Mo Low Alloy Steel in Heat Recovery Steam Generator M Sadeghi H Sabet H Razavi Open Access Article Abstract Page Full-Text 4 - Synthesis of Lead Titanate Nanostructure by Mechanical Activation Method and Evaluating of its Photocatalytic Decolorization of Methyl orange E Khosravipanah S, A Manafi Open Access Article Abstract Page Full-Text 5 - Effects of Shielding Gas on the Depth, Width and Hardness of 17-4PH Stainless Steel during TIG Welding S, M Hosseini Farzaneh M Belbasi Open Access Article Abstract Page Full-Text 6 - Prediction Micro-Hardness of Al-based Composites by Using Artificial Neural Network in Mechanical Alloying R, M Babaheydari S, O Mirabootalebi Open Access Article Abstract Page Full-Text 7 - Environmental Optimization of Building Insulation Thickness for Cold Climates using Neural Network Method E Anbarzadeh T Shahmohammadi Open Access Article Abstract Page Full-Text 8 - Welding and inspection Industry Measurement System Analysis N Adabavazeh M Nikbakht Open Access Article Abstract Page Full-Text 9 - The Geothermal Energy and the its Effects on Global Environmental Pollution K Oveisi