Classification
ENA - Energy from biomass and waste
72
EHA - Renewable energy sources
11
LTN - Biotechnology - biodegradation
8
CXA - Coal and fossil fuel - chemistry and technology
4
EBA - Energy production, energy technology
4
LEL - Botany - lower plants
4
CXR - Natural gas and petroleum - chemistry and technology
3
CXRU - Synthetic fuels
3
ETF - Fuel cells - general
3
LTH - Biotechnology - methods
3
CHXP - Thermochemistry
2
CWK - Chemical reaction engineering and reactor design
2
EIA - Solar energy - general
2
EKA - Wind energy
2
ELA - Geothermal energy
2
LTX - Bioeconomy
2
LWE - Agriculture - general aspects
2
UKA - Environmental damage and energy production
2
UKE - Environment and energy resources
2
UMGE - Carbon capture and storage (CCS)
2
CLM - Catalytic processes
1
CMDS - Photochemical processes in nature and technology
1
CNWE - Electrochemical cells
1
CNWK - Electric batteries
1
CWGH - Chemical plants - development, optimization, process control
1
CXMC - Fluidized bed combustion
1
CXO - Coal conversion plants - materials aspects, inspection, optimization
1
ECA - Energy resources
1
EEA - Coal - general
1
EIC - Solar thermal energy conversion
1
EIP - Photovoltaics
1
EIS - Solar cells
1
EMA - Hydroelectric, tidal energy
1
ESA - Synthetic fuels - utilization
1
ETA - Energy storage
1
EUD - Energy consumption
1
EVN - Energy supply - future aspects
1
EWA - Energy economy
1
EXA - Energy policy
1
LCL - Biotopes, ecosystems
1
LEO - Chemical compounds from plants
1
LHL - Microbiology - general aspects
1
LKU - Biochemistry of specific compounds
1
LWO - Agricultural ecology, sustainable agriculture
1
THHD - Machine parts
1
UHCH - Urban areas
1
UMGH - Gas cleaning
1
UMV - Climatic change
1
UVM - Environmental aspects of hydrocarbons - incl. oil
1