Earth and Planetary Sciences
Approach
41%
Hydrogen
33%
Catalyst
33%
Thermodynamic Efficiency
25%
Emission
25%
Engine
25%
Science and Technology
16%
Strategy
16%
Mixture
16%
Thermodynamics
8%
Metropolitan Area
8%
Exhaust Gas
8%
Compression Ratio
8%
Increasing
8%
Gas
8%
Volume
8%
Fuel
8%
Condition
8%
Efficiency
8%
Experiment
8%
Circulation
8%
Spark
8%
Penalty
8%
Bus
8%
Engineering
Exhaust Gas Recirculation
66%
Catalyst
33%
Thermal Efficiency
25%
Engines
25%
Mixture
16%
Thermodynamics
8%
Heat Losses
8%
Recirculation
8%
Compression Ratio
8%
Emission Legislation
8%
Pumping Work
8%
Passenger Cars
8%
Burn Operation
8%
Fuel
8%
Efficiency
8%
Experiments
8%
Gas Engines
8%
Physics
Hydrogen
33%
Thermodynamic Efficiency
25%
Emission
25%
Engine
25%
Engine Test
16%
Mixtures
16%
Technology
16%
Gases
8%
Increasing
8%
Volume
8%
Fuel
8%
Circulation
8%
Thermodynamics
8%
Work
8%
Material Science
Natural Gas
100%
Catalyst
33%
Mixture
16%
Brakes
8%
Gas
8%
Exhaust Gas
8%
Fuel
8%