Dynamic Analysis and Adaptive Sliding Mode Controller for a Chaotic Fractional Incommensurate Order Financial System. - Ahmad Hajipour; Hamidreza Tavakoli (Int. J. Bifurc. Chaos, 2017)

Design and optimization of a CMOS power amplifier using innovative fractional-order particle swarm optimization. - S. Ali Hosseini 002; Ahmad Hajipour; Hamidreza Tavakoli (Appl. Soft Comput., 2019)

Robust Trajectory Tracking of Delta Parallel Robot Using Fractional-Order Sliding Mode Control. - Behnoush Alizadeh; Ahmad Hajipour; Hamidreza Tavakoli; Abbas Nasrabadi (IEEE Access, 2023)

Robust variable-order fractional PID-LP fuzzy controller for Automatic Voltage Regulator systems. - Mohsen Ahmadnia; Ahmad Hajipour; Hamidreza Tavakoli (Appl. Soft Comput., 2024)

Weighted classification of deep and traditional histogram-based features with kernel representation for robust facial expression recognition. - Morteza Najmabadi; Mina Masoudifar; Ahmad Hajipour (Appl. Soft Comput., 2025)

Gaussian-filtered Local Difference Pattern with kernel representation for person-independent facial expression recognition robust to noise and resolution. - Morteza Najmabadi; Mina Masoudifar; Ahmad Hajipour (Multim. Tools Appl., 2025)