Title	Uncertainty Theory Based Iris Recognition System
Author	Majd BELLAAJ, Dorra SELLAMI, Imen KHANFIR KALLEL
Citation	Vol. 26  No. 8  pp. 11-22
Keywords	Iris recognition system, iris feature imperfections, probability theory, possibility theory.

Title	Improving the Safety in Factories Manufacturing Steel Products with a Fuzzy Approach and an Emphasis on Risk Management
Author	Amin Lotfi Eghlim
Citation	Vol. 26  No. 8  pp. 23-32
Keywords	Project risk - risk identification - structural parts factories - fuzzy approach

Title	Designing a Novel Hybrid Algorithm for QR-Code Images Encryption and Steganography
Author	Mohammad Soltani and Amid Khatibi Bardsiri
Citation	Vol. 26  No. 8  pp. 33-42
Keywords	QR-code, Encryption, Decryption, Steganography, LSB, two-dimensional logistic chaotic map, Huffman's algorithm.

Title	Designing Neuro-Fuzzy Controller for GUPFC to Improve Transient Stability based on Lyapunov Energy Function
Author	Abdoreza Noori Shirazi, Babak Mozaffari, and Soodabeh Soleymani
Citation	Vol. 26  No. 8  pp. 43-54
Keywords	Generalized unified power flow controller (GUPFC), transient stability, lyapunov energy function, critical cleaning time (CCT), neuro-fuzzy control.