Classification
ETF - Fuel cells - general
ESB - Hydrogen energy
9
TKJ - Traffic
7
ETC - Energy conversion
4
CXX - Hydrogen production - chemistry and technology
3
UHK - Traffic and environment - incl. automobile exhaust gas
3
CNU - Electrochemical synthesis, electrochemical engineering
2
CNW - Electrochemical energy production and conversion
2
CXA - Coal and fossil fuel - chemistry and technology
2
EVP - Energy models, energy system analysis
2
TKH - Air flight, space flight
2
CLJE - Catalyst characterization and surface phenomena
1
CXRU - Synthetic fuels
1
EIP - Photovoltaics
1
ENA - Energy from biomass and waste
1
ETFD - Solid oxide fuel cells ( SOFC )
1
EUU - Cogeneration
1
EWA - Energy economy
1
FHN - Neutron scattering
1
LHH - Microbiology - methods
1
THN - Heat exchanger
1