PrefaceChapter 1: Biotechnologies and Biomedical ApplicationsFacile Preparation of Multifunctional Ag-FexOy/C Composite from Coffee Husk for Antibacterial and Catalytic ApplicationsPyrolysis Kinetic Analysis of Palm Kernel Shells Using Free Model Method: Effect of Heating Rate and Iron Ore CatalystAnalysis Model of Physical Characteristics Sawdust Materials Through the Carbonization ProcessInjection Molding Characterization of PLA and Chitosan Mixtures for Biomaterial ApplicationsChapter 2: Materials and Technologies for Environmental ProtectionOctahedral Molecular Sieve Manganese Oxide: Feasible Material for Hg(II) RemediationPreparation of PVA/Chitosan/Zeolite Composite and its Antibacterial Activity for Water TreatmentAn Ultrafast and Green Synthesis of Mesoporous Zeolite X for Great Enhancement in Methylene Blue AdsorptionEffect of Microwave-Assisted Method on Antibiotic Adsorption Capacity of Activated Carbon from GrapefruitChapter 3: Polymers and CompositesExamination of Thermoplastic Polymers for Splicing and BendingPreliminary Study on Mechanical Properties of 3D-Printed Carbon-PLA Filament with Different Printing Orientation for SUAV Wings ApplicationChapter 4: Silica NanoparticlesPreliminary Study of Modified Fluorescent Silica Nanoparticles for the Detection of IgY AntibodyComparative X-Ray Diffraction (XRD) Study on the Synthesis of Natural Based Magnetic Silica NanoparticlesBiosynthesis of Silver Nano/Micro-Particles Using Sambiloto (Andrographis paniculata) Leaves Extract: Effect of AgNO3 Solution ConcentrationsChapter 5: Materials and Technologies in Chemical ProductionThe Energy Potential of Glassy Volcanic Rock for Cellular Glass ProductionHydrogen Production from Waste Aluminum Foil AA1235 Using the Aluminum-Water Reaction Method with Thickness VariationsChapter 6: Machines and EquipmentCharacterization of Fiber Bragg Grating (FBG) for Weight Measurement SystemCharacteristic of Bolt and Nut Pressure Switch of Cessna Caravan Type 208BModified Copper for Reducing CO and HC Vehicle Exhaust Gas EmissionsChapter 7: Properties and Processing Technologies of Structural MetalsMicrostructure Evolution and Hardness Properties of Nodular Cast Iron for Varying Tempering TimeMicrostructure Refinement by Austenizing and Tempering in Low Alloy Carbon Steel CastingAnalysis of the Effect of Time on Tensile Strength and Hardness of Electroplating Method Using Nickel on Aluminum 7075Comparison of Microstructure, Yield Strength, Tensile Strength, and Modulus of Elasticity between Gray Cast Iron and Nodular Cast IronCorrosion Resistance Analysis of Al-Cu, Al-Zn and Al-Cu-Zn AlloysHydroxyapatite Effect on the Corrosion Rate of AMC Al-Zn by Powder MetallurgyAluminum Oyster Mushroom Frying Surface Quality Improvement through AnodizingSecondary Material Casting of Al-Si for Making Handle Brake in Variation of DuctThe Effect of Finishing Allowance and Milling Methode on Surface Roughness in the Finishing Process of Al5052 and Al7075Mechanical Properties and Microstructure Evolution of Double-Sided Friction Stir Welding AA6061-T6