1. Sustainable energy systems (solar-thermal, wind, biomass, waste-to-energy)

2. Thermo-fluids, heat transfer, and HVAC systems

3. Advanced materials, composites, and manufacturing technologies

4. Sustainable machine design and automation

5. Robotics, mechatronics, and control engineering

6. Renewable-energy storage systems (thermal, mechanical, hybrid)

7. Energy efficiency, exergy analysis, and system optimization

8. Automotive engineering, propulsion, and emissions reduction

9. Computational fluid dynamics (CFD) and finite-element analysis (FEA)

10. Refrigeration, cryogenics, and low-carbon cooling technologies

1. Sustainable construction materials and green building technologies

2. Structural engineering and infrastructure resilience

3. Water resources engineering, hydrology, and climate-adaptive design

4. Transportation engineering and smart mobility systems

5. Environmental engineering, pollution control, and waste management

6. Geotechnical engineering and soil improvement for sustainability

7. Urban planning, smart cities, and sustainable development frameworks

8. Coastal and hydraulic engineering

9. Disaster risk reduction and climate-resilient infrastructure

1. Renewable power systems: solar PV, wind, hydro, hybrid microgrids

2. Power system planning, protection, and smart grid technologies

3. Energy management systems and demand-side optimization

4. Control systems, automation, and instrumentation

5. Power electronics for sustainable energy conversion

6. Embedded systems, IoT, and smart energy devices

7. Sustainable telecommunications and ICT infrastructure

8. High-voltage engineering and power quality improvement

1. Sustainable chemical process design and optimization

2. Green chemistry and environmentally benign processes

3. Biofuels, biogas, and biomass conversion technologies

4. Nanomaterials, catalysis, and advanced material synthesis

5. Process safety, risk analysis, and hazard mitigation

6. Water treatment, desalination, and environmental remediation

7. Polymer engineering and composite materials

8. Life cycle assessment (LCA) of chemical processes

1. Sustainable oil & gas production technologies

2. Enhanced oil recovery (EOR) and carbon-capture-assisted recovery

3. Drilling engineering, wellbore stability, and geothermal drilling

4. Reservoir engineering and simulation

5. Pipeline engineering, flow assurance, and corrosion control

6. Refining, petrochemical processing, and cleaner production methods

7. Gas processing, LNG, LPG, and flare-gas utilization

8. Transition pathways from fossil fuels to low-carbon energy systems

9. Health, safety, and environment (HSE) in petroleum operations