Volume 13, Number 2, April 2012, (click for next issue, last issue)			ISSN      1473-804x Online ISSN      1473-8031 Print
	International Journal of Simulation Systems, Science & Technology Selected Papers from EMS2011: UKSim 5th European Modelling Symposium on Computer Modelling and Simulation Madrid, 16 – 18 November 2011
Guest Editors: Gregorio Romero, University Polytechnic of Madrid (UPM) Editor-in-chief: David Al-Dabass, Science and Technology, Nottingham Trent University, UK
A ROBUST SPREAD SPECTRUM WATERMARKING TECHNIQUE FOR COLOR IMAGES BASED ON DCT, RESISTANT JPEG COMPRESSION123 Hadi Rahbarnia, Mansour Nejati jahromi and Davood Gharavian				1
ANALYSIS OF VARIABLE GEAR SYSTEM ON ENERGY CONSUMPTION IN ELECTRIC VEHICLE USING SIMULATION TOOL Vikas Gupta and Anindya Deb				6
SIMULATOR OF NANO-MANIPULATION OF NANO-PARTICLE USING ATOMIC FORCE MICROSCOPY IN MATHEMATICA SOFTWARE Ahmad Naebi, Moharam Habibnejad Korayem, Mahdi Abbasgholipor Ghadim and Somayeh Paki khatibi				11
DEVELOPING A PETRI NETS BASED REAL-TIME CONTROL SIMULATOR Reggie Davidrajuh				25
SIMULATION AND CONTROL OF ROBOT ARMS AND MANIPULATORS USING BLIND ADAPTIVE SEARCH INVERSE KINEMATICS Samuel Cubero, Jr				34
EFFICIENT APPROXIMATION OF TIME CONSUMING MODELS FOR THEIR USE IN OPTIMIZATION FRAMEWORKS Marco Vannucci, Giacomo Filippo Porzio, Barbara Fornai, Valentina Colla and Marco Vannocci				49
PID AND INTELLIGENT CONTROLLERS FOR OPTIMAL TIMING PERFORMANCES OF INDUSTRIAL ACTUATORS Danilo Pelusi				59
PERFORMANCE EXTRAPOLATION USING LOAD TESTING RESULTS Subhasri Duttagupta and Manoj Nambiar				66
COMPARISON OF MECHANICAL THROMBECTOMY DEVICES FOR BLOOD CLOTS EXTRACTION USING AUTO-EXPANDABLE STENTS AND SUCTION DEPRESSION Gregorio Romero, Maria Luisa M Martinez, Joaquin Maroto and Gillian Pearce				75
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