主题词：Advanced machining processes and optimization; Natural Fiber Reinforced Composites; Advanced Combustion Engine Technologies; Heat Transfer Mechanisms; Heat Transfer and Optimization; Fluid Dynamics and Turbulent Flows; Biodiesel Production and Applications; Aluminum Alloys Composites Properties; Mechanical Engineering and Vibrations Research; Advanced Machining and Optimization Techniques; Nanofluid Flow and Heat Transfer; Advanced Welding Techniques Analysis; Mechanical Behavior of Composites; Advanced Surface Polishing Techniques; Welding Techniques and Residual Stresses; Fatigue and fracture mechanics; Manufacturing Process and Optimization; Additive Manufacturing and 3D Printing Technologies; Solar Thermal and Photovoltaic Systems; Metal Forming Simulation Techniques; Aerodynamics and Fluid Dynamics Research; Refrigeration and Air Conditioning Technologies; Metallurgy and Material Forming; Wind and Air Flow Studies; Fluid Dynamics and Vibration Analysis