Effect of Suspension System Stiffness on Dynamic Load Three Axle Vehicle -- Trajectory Inference Optimization Based on Improved DR Algorithm -- Research on AGV Chassis Structural Renovation based on Uphill and Downhill Scenarios -- Finding Recommendations for Selecting Numerical Model Settings for Efficient Simulation of the Working Process of an Axial Turbine Blade with Convective Cooling -- A Novel Design of Automatic Longan Seed Removing Machine -- A Semi-analytical Approach for Dynamic Characteristics of Beams with the Effect of Static Load -- Milling Tool Wear Prediction Based on 1DCNN-LSTM -- The Influence of Road Quality on Oscillating of Multi-Purpose Forest Fire Fighting Vehicle -- Filaments for 3D Printers from Surgical Masks, Cornstarch and Plastic Bottles Generated by COVID-19 -- AFM Analysis of 3D Printing PEI for Automotive Applications Life Cycle Assessment of Wire Arc Additive Manufacturing Process -- Development of Cost-effective Sustainable Hybrid Composites Based on Recycled PP and Chopped Carbon Fibers -- Mechanism of Droplet Coalescence in Cylindrical Hydrocyclone -- Influence of Geometric Imperfections on Global Buckling Strengths of Cold-rolled Aluminium Alloy Channel Columns.