List of Articles ضریب انتقال حرارت Open Access Article Abstract Page Full-Text 1 - Investigating the Changes inThermal Conditions of Residential Buildings in the Second Half of Ghajarid Era with Reference to Performance Approach Ehsan Zamani Aryan Amirkhani Hadis Amanolah Baharvandi Mohammad Reza Bemanian Open Access Article Abstract Page Full-Text 2 - The Effect of Number of Steps on the Performance of a Cascade Type Solar Still Nader Rahbar فاطمه علی پناه Open Access Article Abstract Page Full-Text 3 - Effect of Obstacles Geometry on Temperature Variations of a Flowing Fluid in an Open Channel – Experimental Investigation and Numerical Modelling نادر رهبر Mahdi Hamzei Siavash Zabeti-Jahromi Open Access Article Abstract Page Full-Text 4 - Numerical Study on the Effect of dimension of Steps on the Performance of a Cascade Solar Still Nader Rahbar فاطمه علی پناه Open Access Article Abstract Page Full-Text 5 - Experimental studies on the convective heat transfer of MgO–water nanofluid mohammad ghavidel Seyfolah Saedodin Open Access Article Abstract Page Full-Text 6 - بررسی انتقال حرارت نانوسیال در کانال با مقطع مثلثی با دو وجه شارثابت و یک وجه دماثابت محمدامیر آقانجفی بابک مهماندوست