Preface Chapter 1: Biomass Processing Assessment of Selected Industrial Byproducts as Alternative Nutrient Source for E. oli pET30a-HIV-RT Combined Effects of Solid-to-Liquid Ratio and Ethanol Concentration on the Organosolv Delignification of Extractives-Free Bagasse The Effects of Acid Concentration, Temperature, and Time on the Acid Hydrolysis of Mango (Mangifera Indica) Seed Husk to Produce 5-HMF Chapter 2: Energy Storage, Batteries, and Power Systems Mini Review: Implementing Gas Sensors in Battery Management Systems for Determining Battery Lifespan The Impact of Tropical Conditions on Battery Pack Conditioning and Storage: A Mini Review Design and Simulation of Powerwall Casing for Energy Storage Design and Implementation of Energy Management System for Hybrid Solar System Chapter 3: Thermal Engineering and Fluid Mechanics Air Entrainment by Infrared Suppressors: A Brief Review on Current Practices Effect of the Size of Mixing Tube on Air Ingression by an Infrared Suppression (IRS) Device Chapter 4: Equipment Design Design and Construction of Pneumatic System Simulation Tool as a Learning Media for Industrial Machine Repair Preparing a Heater Prototype for Self-Heating Food Packaging Chapter 5: Mechatronics Prediction of Seat-Off towards Assistance for Sit-to-Stand Movement by RBFN Design of Metal and Non-Metal Detector Based on Arduino Controller.