Earth & Environmental Sciences
alternative energy
7%
analysis
10%
biochar
8%
byproduct
15%
carbon
13%
carbon emission
7%
carbon fiber
12%
chemical oxygen demand
6%
circular economy
30%
cogeneration
10%
combined heat and power
86%
combustion engine
16%
cost
20%
drying
17%
economic viability
9%
electricity
55%
electricity generation
27%
energy production
8%
energy source
7%
externality
9%
farm
25%
fossil fuel
11%
fuel cell
26%
gas
10%
gasification
100%
heat production
45%
heating
11%
incentive
7%
life cycle analysis
30%
liming
5%
litter
51%
livestock farming
5%
material
14%
modeling
15%
moisture content
6%
municipal solid waste
7%
poultry
64%
power generation
24%
price
12%
process analysis
9%
recycled material
8%
renewable energy source
9%
renewable resource
9%
resource
20%
simulation
24%
software
8%
subsidy
8%
thermodynamics
6%
waste disposal
15%
wastewater
15%
Engineering & Materials Science
Biofuels
53%
Biomass
37%
Byproducts
8%
Carbon capture
9%
Costs
11%
Economics
25%
Ecosystems
5%
Electricity
11%
Environmental impact
9%
Farms
15%
Feedstocks
30%
Fischer-Tropsch synthesis
12%
Fossil fuels
19%
Gas producers
21%
Gasification
71%
Heating
5%
Hot Temperature
15%
Internal combustion engines
7%
Liquid fuels
10%
Liquids
10%
Poultry
34%
Rankine cycle
9%
Sales
30%
Straw
25%
Switches
5%
Synthetic fuels
6%
Waste disposal
9%
Water gas shift
6%
Chemistry
Biofuel
17%
Calorific Value
8%
Carbon Atom
7%
Displacement
6%
Electricity
17%
Energy
11%
Fischer-Tropsch Synthesis
9%
Fossil Fuel
37%
Fuel
13%
Gas
8%
Gasification
54%
Heat
11%
Internal Combustion Engine
11%
Pellet
7%
Simulation
19%