List of Articles α-cut Open Access Article Abstract Page Full-Text 1 - Evaluation of research projects based on a mix model with fuzzy DEA-RA Narjes AbaeiJabri Mohammad Reza Mozaffari Open Access Article Abstract Page Full-Text 2 - Construction of α-cut fuzzy X control charts based on standard deviation and range using fuzzy triangular numbers Ezzatollah Balouyi Jamkhaneh Open Access Article Abstract Page Full-Text 3 - Development of congestion model in fuzzy data envelopment analysis Alireza Alinezhad Behnam Mohamadbeigi