主题词：Conducting polymers and applications; Microstructure and Mechanical Properties of Steels; Welding Techniques and Residual Stresses; Antenna Design and Analysis; Biofuel production and bioconversion; Microwave Engineering and Waveguides; Adsorption and biosorption for pollutant removal; Advanced Battery Materials and Technologies; Biodiesel Production and Applications; Heat Transfer and Optimization; Structural Integrity and Reliability Analysis; Geological and Geophysical Studies; Management and Optimization Techniques; Concrete and Cement Materials Research; Building Energy and Comfort Optimization; Structural Behavior of Reinforced Concrete; Nanocomposite Films for Food Packaging; Thermodynamic and Exergetic Analyses of Power and Cooling Systems; High-Temperature Coating Behaviors; Metallic Glasses and Amorphous Alloys; Innovative concrete reinforcement materials; Hydrogen embrittlement and corrosion behaviors in metals; Antenna Design and Optimization; Geotechnical and construction materials studies; Water Quality Monitoring and Analysis