This volume of the journal contains papers collected by results of the 8th RMUTP International Conference on Science, Technology and Innovation for Sustainable Development: Challenges towards the Digital Society 2017 (8th RMUTP ICON SCi-2017, June 22-23, 2017, Bangkok, Thailand) organized by Rajamangala University of Technology Phra Nakhon. We hope that the presented results of engineering researches and solutions in the various branches of the modern production will be useful for many engineers and researchers.Table of Contents: Preface Chapter 1: Innovative Materials Influence of Zinc Substitution on Hydroxyapatite Structure Prepared by Chemical Precipitation Method Improve the Electrical Properties of the ITO-PET Polymer by Plasma Technique Phase Transition and Microstructure Development of BaTiO3 by Thermal Development of BaTiO3 by Thermal Decomposition Method The Grain Structure of Nd Doped Y2NiMnO6 Ceramics Sintered at High Temperature Investigations on Luminescence Properties of Ce3+ Ion Doped Bismuth Borophosphate Glasses Investigation of Luminescence Properties of Dy3+ Doped Alkaline Earth Oxides Barium Phosphate Glasses Electrostriction of Dielectric Elastomer Based on Natural Rubber/Graphene Composites for Actuator Applications Conductivity Modification of Carbon-Based Nanocomposites Complete Phase Change of Y2NiMnO6 Ceramics Doped with TiO2 at High Temperature The Acoustic Impedance and other Properties of (1-3) Piezoceramics Polymer Composite Effects of Rate-Controlled Sintering on Phase Formation, Dielectric and Ferroelectric Properties of Cobalt Oxide Doped BNKT Ceramics Synthesis of Molybdenum Trioxide: Structure Properties and Sensing Film Preparation Chapter 2: Innovation in Food Chemistry, Biotechnologies and Environmental Engineering Correlation and Multiple Regression Model for Economic Traits of Local Rice (Oryza sativa L.) in Upland Rice System Antioxidant Activities of Transgenic Flower Over-Expressing FLS and TT8 Involving in Flavonoid Biosynthesis An Antagonism of Isolates of Root-Associated Bacteria Consortia Habituating in Banana Rhizosphere A High Potential in Activating Beneficial Indigenous Microbes Involving in the Meat Fermentation Process Effect of Spacing and No. of Seedling per Hill on Growth and Yield Components of Rice cv. Chai Nat 1 under System of Rice Intensification Phytochemical and Nutritional Values of Local Plants in the Phraek Nam Daeng Community Samut Songkhram Province Thailand The Study of Calcium Oxide from Cockle Shell Used as a Low-Cost Catalyzer for Biodiesel Production Lactic Acid Bacteria Starter Participating in Hygienic Long Shelf-Life of the Plaa-Som Fermented Product Distribution of Residue Carbofuran and Glyphosate in Soil and Rice Grain Removal of Phosphate from Wastewater Using Carbonized Filter Cake Adsorption of Cadmium(II) Ion from Aqueous Solution onto a Raw Material of Bamboo Powder and its Surface Modification Immobilization of Peroxidase from Cauliflower Stem on Ultrafiltration Membrane for Phenol Removal Determination of Contaminated Heavy Metals in Lacquer Thinner Chapter 3: Building Materials Effect of Banana Fibers on Mechanical and Physical Properties of Light Weight Concrete Blocks Determination of Mass Attenuation Coefficients of Cement Paste Containing Ilmenite and Barite for ?-Rays Fabrication and Properties of Panicum repens Reinforced Cement A Feasibility Study Using Para Rubber Leaves for Prototype Lightweight Flat Sheet Production Chapter 4: Sensors, Measurements and Mechatronics Designing of Universal WGM Biosensor from Micro Ring Resonator Qubit Noise within Micro PANDA Ring Resonator in QKD Process Entangled Photon Source of Quantum Key Generator from Micro Ring Resonator for QKD Use Implementation of Variable Speed Drive for Oil-Pump System Shielding Effect and Guarding in High Resistance Measurement Analytical Processing Development of Tin Element Using Wavelength Dispersion X-Ray Fluorescence (WDXRF) Technique All-in-One Flow Injection Spectrophotometric System for Field Testing The Initial Perturbation for Mesoscale Predictability Improvement the Largest Lyapunov Exponent for Measurement the Northeast Monsoon Prediction Compact Fluorescence Microscope for Smartphone and Tablet Development of Low-Cost Abbe Refractometer Gas Detector System for Industrial Use Chapter 5: Innovative Technology in Mechanical Engineering Voltage Fluctuation Reduction of Industry with Voltage Regulator (VR) on Power Distribution System An Approach to Development of Manufacturing Data Report According to International Standards The Design of Medium Size Voltage Capacitor in order to Improve the Power Factor Indoor Rainbow Model: An Apparatus for Observing Spectrum in Classroom Chapter 6: Modern Technologies in Education Seesaw Balancing: A Hands-On Model to Understand Moment of Force in Classroom Development of Computer-Assisted Instruction Lesson on Immune System Organs and Immune System Diseases Development of an Interactive Multimedia Michelson Interferometer Experiment Development of an Educational Experiment Setup for Measuring the Speed of Sound The Helper and Guide System for Cooperative Education via Web Application