PrefaceChapter 1: Functional MaterialsAnalysis of Stress Distribution of Composites Based on Hydroxyapatite by Finite Element MethodEffect of Temperature and Cycle Spheroidizing on Mechanical Properties and Microstructure of Low Carbon SteelThe Effect of Leaching Time on ZrO2 Synthesis through Alkali Fusion and Acid LeachingChapter 2: Natural Fibre CompositesBoiling Temperature and Particle Size Effect on the Tensile Strength of Rice Straw-Based BiomaterialsStudy of Tensile and Impact Properties for 00 and 450 Fiber Directional Orientation of Polyester Resin Composites with Woven Ramie ReinforcedChapter 3: Waste TreatmentAnalysis of the Effect of an Absorbent Plate Coated with Cuo Nanoparticles on Single Slope Solar DistillationIncreasing the Added Value of Copper and Silver Metal from Printed Circuit Board Waste Using a Knelson Concentrator with Variations in Size and Centrifugal ForceChapter 4: Green Building MaterialsUtilization of Steel Slag Waste as Construction Materials of Rigid PavementsUtilization of Waste Steel Slag, Fly Ash, Glass Bottle Powder for Swamp Soil StabilizationUtilization of Steel Slag Waste as a Substitute for Coarse Aggregate in Concrete MixtureEffect of Composite Portland Cement for Subgrade Stabilization and the Effect on Unsoaked CBR ValueChapter 5: Simulation and Modelling in Chemical Engineering and MechatronicsSimulation of Pressure Swing Adsorption for Oxygen Concentrator Using LiX ZeoliteDynamic Modeling Simulation of Regenerator for Glass Furnace ApplicationsAnalysis of Flettner Rotor to Reduce Carbon Emissions in Container and Bulk CarriersSimulation of Automatic Speed Control in Motor Vehicles (Cruise Control) Using Simulink PID Controller