Related by context. Frequent words. (Click for all words.) 68 compression ignition 61 stoichiometric 58 spark ignition 57 boron nitride 57 conventional internal combustion 56 Ti VCT 55 homogeneous 55 Nafion 54 ceria 54 reactant 54 monomeric 53 thermally stable 53 paramagnetic 53 aftertreatment 53 transesterification 52 hybrid powertrains 52 hydride 52 naturally aspirated engine 51 ionic liquid 51 reactants 51 SOFCs 51 microchannel 51 crystallinity 51 homogeneously 51 alkanes 51 torque vectoring 51 anionic 51 combustion 50 microporous 50 cylinder deactivation 50 gaseous fuels 50 dispersive 50 hybrid drivetrain 50 nanoporous 50 variable valve 50 #.# liter HDi 50 crosslinking 50 halogenated 50 emissive 50 titania 50 servomotor 50 hydrogen internal combustion 50 turbocharged engines 50 BMW Vision EfficientDynamics 50 internal combustion engines 50 #.# liter Ecotec 49 electric drivetrain 49 diesel particulate filter 49 homogenous 49 dye molecules 49 VCSELs 49 colorimetric 49 adiabatic 49 nonreactive 49 Audi e tron 49 PCR amplification 49 granulate 49 ethanol methanol 49 Biobutanol 49 cetane 49 physiologically relevant 49 liquid electrolyte 49 compressibility 49 thermo chemical 49 PEM fuel 49 analyte 49 viscosity 49 turbodiesel engine 49 dry sump 49 testbenches 49 emulsification 49 porphyrin 49 organic solvents 49 manual gearbox 49 Ford EcoBoost 49 electrochemically 48 CVTs 48 nanoparticulate 48 coating thickness 48 eutectic 48 #x# mm [004] 48 electrohydraulic 48 mixtures 48 thermoelectric materials 48 microsystem 48 fluorescent probes 48 ribozyme 48 servomotors 48 biocatalysts 48 particulate filters 48 Supercritical 48 plasmon 48 SWCNTs 48 dopant 48 vehicles HEVs 48 microfluidic chip 48 PZT 48 asparagine 48 turbocharged diesel 48 QDs 48 electrophoretic