主题词：Biodiesel Production and Applications; Thermochemical Biomass Conversion Processes; Advanced Combustion Engine Technologies; Hydrocarbon exploration and reservoir analysis; Solar Thermal and Photovoltaic Systems; Coal Properties and Utilization; Hydraulic Fracturing and Reservoir Analysis; Petroleum Processing and Analysis; Enhanced Oil Recovery Techniques; Coal and Its By-products; Photovoltaic System Optimization Techniques; Catalysis and Hydrodesulfurization Studies; Lubricants and Their Additives; Catalytic Processes in Materials Science; Biofuel production and bioconversion; Reservoir Engineering and Simulation Methods; Solar Radiation and Photovoltaics; Drilling and Well Engineering; Energy and Environment Impacts; Coal Combustion and Slurry Processing; Heat transfer and supercritical fluids; Hybrid Renewable Energy Systems; Lignin and Wood Chemistry; Minerals Flotation and Separation Techniques; Mineral Processing and Grinding