Dr. Khamiss Cheikh is a distinguished researcher at the forefront of mechanical engineering and environmental science. With a focus on optimizing maintenance strategies, Cheikh's work examines the balance between performance and robustness in condition-based versus time-based maintenance approaches, as showcased in their publications in prestigious journals such as the Journal of Harbin Engineering University and the Journal of Mechanical Engineering Research and Developments. Additionally, Cheikh's expertise extends to environmental health, with groundbreaking research on radon dispersion in various indoor settings, including traditional hammams and bathrooms. By integrating computational fluid dynamics simulations with experimental investigations, Cheikh offers invaluable insights into mitigating health risks associated with airborne pollutants. Their interdisciplinary approach underscores a commitment to advancing both engineering solutions and public safety, shaping the forefront of research in maintenance efficiency and environmental protection.