Title	Investigating and designing library for children in Qom
Author	Sajedeh fardi, morteza seddigh
Citation	Vol. 17  No. 4  pp. 30-36
Keywords	library, child, education, child space, mind, creativity

Title	Effects of Wind and PV Energy on Optimal Determination of Energy Storage and Spinning Reserve Capacity
Author	Seyyed Mahdi Esmaeili, Hossein Haroonabadi
Citation	Vol. 17  No. 4  pp. 21-29
Keywords	Differential evolution algorithm, Energy storage system, Photovoltaic energy, Spinning reserve, Wind energy.

Title	Gully erosion Sufficiency mapping at Robatturk Watershed (Iran) using an artificial neural network model
Author	Heshmatolah Agharazi , Ali Aakbar Davoudirad, Saeed Khosrobagi, Samad Shadfar, Shamsolah Nikchah, Abolfazle Najimi
Citation	Vol. 17  No. 4  pp. 14-20
Keywords	ANN, hazard zone, Landuse, Markazi Province

Title	Performance analysis of microwave carrier for Ku-band satellite signal
Author	M. R. H. Khan, M. F. Islam, G. Sarowar† and T. Reza
Citation	Vol. 17  No. 4  pp. 4-13
Keywords	phased array antenna, optical heterodyning, carrier generation, Ku-band satellite signal, laser linewidth, stability, optical frequency locked loop (OFLL).