Yan Ran is currently an Associate Professor and a Doctoral Supervisor at Chongqing University,a Fixed Researcher at the State Key Laboratory of Mechanical Transmission for AdvancedEquipment, Chongqing University, a Committee Member of the Chongqing Science andTechnology Association and a Vice President of Chongqing Engineering Graphics Society. Herresearch interests include CNC machine tools reliability technology and electromechanicalproduct quality engineering. She has hosted and joined in almost 30 projects, published morethan 100 academic papers, 22 invention patents, and 6 copyrights of computer software.Genbao Zhang is a Professor at Chongqing University, a Researcher at the State KeyLaboratory of Mechanical Transmission for Advanced Equipment, Chongqing University. Hiscurrent research interests include advanced manufacturing technology, computer integratedmanufacturing systems, CNC machine tools reliability, modern quality engineering, andenterprise information. He enjoys a special government allowance from the State Council.He has presided over 80 projects, and published more than 400 academic papers and 11monographs.