List of Articles سیکلون Open Access Article Abstract Page Full-Text 1 - Improving efficiency of a gas cyclone in high-temperature operating conditions by using appropriate geometry of vortex finder Akbar Jafarnezhad Hesamoddin SALARIAN Saeid Kheradmand Jahanfar Khaleghinia Open Access Article Abstract Page Full-Text 2 - Comparative Study of Efficiency using of Cyclone, Spray Scrubber and integrated system of cyclone- spray scrubber to collect Silica Particles in stone Crushing Workshops Mohsen Aliabadi Abdorrahman Bahrami Farideh Golbabae Farshid Ghorbani