Agriculture & Biology
tree and stand measurements
100%
energy
55%
bioenergy
34%
energy costs
33%
wood chips
18%
roads
15%
fuel moisture index
13%
potential energy
10%
Pinus ponderosa
9%
felling
9%
biomass
9%
stumps
9%
energy use and consumption
9%
fossil fuels
9%
thinning (plants)
8%
grinding
8%
production costs
7%
heat
4%
Engineering & Materials Science
Biomass
84%
Costs
29%
Skidding
23%
Potential energy
17%
Fossil fuels
15%
Moisture
13%
Heating
11%
Energy utilization
10%
Earth & Environmental Sciences
energy
45%
biomass energy
13%
biomass
12%
road
11%
cost
10%
production cost
6%
potential energy
5%
grinding
5%
thinning
4%
diesel
4%
fossil fuel
4%
harvest
4%
energy consumption
4%
moisture content
4%
pine
4%
price
4%
heating
3%
Chemical Compounds
Energy
44%
Fuel
12%
Fossil Fuel
6%
Energy Consumption
5%
Calorific Value
5%
Potential Energy
5%
Purity
2%
Reduction
2%
Amount
2%