Title	An Improved JPEG Image Compression Algorithm by Modifying Luminance Quantization Table
Author	Lamia Alam, Pranab Kumar Dhar, Mirza A. F. M. Rashidul Hasan, Mohammed Golam Sarwar Bhuyan, Golam Moktader Daiyan
Citation	Vol. 17  No. 1  pp. 200-208
Keywords	JPEG image compression luminance quantization table compression ratio mean square error peak signal-to-noise ratio

Title	On a New Modeling Process of The Decision-Makers’ Needs
Author	Outfarouin Ahmad, Abdali Abdelmouna?m
Citation	Vol. 17  No. 2  pp. 1-8
Keywords	Business intelligence, decisional information systems, decision-maker needs’ modeling, requirements engineering.

Title	Evaluating the Detected Errors in Fluid Transmission Pipelines by Smart Magnetic PIG in The Presence of External Magnetic Fields
Author	Farshid Rangani, Ali Asghar Shojaei
Citation	Vol. 17  No. 2  pp. 9-19
Keywords	Detected error, fluid transmission pipeline, PIG, magnetic fields

Title	Designing a Model to Reduce Energy Consumption Costs in a Local Energy Network
Author	Alireza Alinaghian, Mahsa Ghandehari
Citation	Vol. 17  No. 2  pp. 20-28
Keywords	Energy Network, Mathematical Programming, Optimization