Classification
ENA - Energy from biomass and waste
EHA - Renewable energy sources
8
LEL - Botany - lower plants
3
CHXP - Thermochemistry
2
CXA - Coal and fossil fuel - chemistry and technology
2
CXR - Natural gas and petroleum - chemistry and technology
2
EBA - Energy production, energy technology
2
EIA - Solar energy - general
2
EKA - Wind energy
2
ETF - Fuel cells - general
2
LTH - Biotechnology - methods
2
LTN - Biotechnology - biodegradation
2
UKE - Environment and energy resources
2
UMGE - Carbon capture and storage (CCS)
2
CLM - Catalytic processes
1
CWK - Chemical reaction engineering and reactor design
1
CXRU - Synthetic fuels
1
ECA - Energy resources
1
EEA - Coal - general
1
EIP - Photovoltaics
1
EIS - Solar cells
1
ELA - Geothermal energy
1
EMA - Hydroelectric, tidal energy
1
ETA - Energy storage
1
EUD - Energy consumption
1
EVN - Energy supply - future aspects
1
LKU - Biochemistry of specific compounds
1
LTX - Bioeconomy
1
UHCH - Urban areas
1
UKA - Environmental damage and energy production
1
UMV - Climatic change
1