Volume: 19, Issue: 2, April 2014 ======================================================================================================== 1) Optimal Power Consumption in Cooperative WSNs for a Random Distance using 2-D Topology Authors: Shorouq AL-Eidi and Jamil Ahmad AL-Sawwa 2) Temperature dependence of 4H-SiC IMPATT Diode at Ka band Authors: Joydeep Sengupta,Girish Chandra Ghivela, Anand Gajbhiye, Bhupendra Jothe, M. Mitra 3) Depth First Based Sink Mobility Model for Wireless Sensor Networks Authors: Anas Abu Taleb, Tareq Alhmiedat 4) Design of 4 bits Combinational Lock Using VHDL Author: Jenny Ebitonere Ogeh