Engineering & Materials Science
Heavy metals
100%
Biomass
70%
Soils
60%
Crops
46%
Contamination
40%
Cadmium
38%
Land use
25%
Ashes
21%
Nitrogen
19%
Potassium
17%
Fouling
15%
Greenhouse gases
14%
Energy balance
7%
Fluidized beds
7%
Gasification
7%
Feedstocks
7%
Impurities
6%
Hot Temperature
6%
Pyrolysis
6%
Boilers
6%
Furnaces
6%
Steam
5%
Pipe
5%
Antennas
4%
Agriculture & Biology
polluted soils
77%
heavy metals
68%
biomass
47%
cadmium
27%
land use change
18%
energy
18%
fouling
17%
bioenergy
17%
combustion
16%
crops
16%
ash content
15%
nitrogen content
14%
potassium
11%
synthesis gas
11%
gasification
10%
industrial crops
10%
boilers
9%
fluidized beds
9%
greenhouse gases
9%
greenhouse gas emissions
8%
heat
8%
pyrolysis
8%
food crops
8%
phytoremediation
8%
furnaces
8%
pipes
8%
energy balance
8%
aboveground biomass
7%
ash (inorganic matter)
7%
steam
7%
land use
7%
alkalis
7%
feedstocks
7%
nitrogen
4%
methodology
2%
Earth & Environmental Sciences
contaminated soil
70%
heavy metal
56%
biomass
47%
cadmium contamination
31%
crop
25%
ash
17%
bioenergy
15%
contamination
13%
energy
13%
fouling
13%
land use change
12%
nitrogen
12%
industrial crop
12%
greenhouse gas
12%
potassium
11%
combustion
10%
contaminated land
9%
phytoremediation
7%
gasification
7%
index
7%
boiler
6%
energy balance
6%
energetics
6%
furnace
6%
pyrolysis
6%
cadmium
6%
pipe
5%
food
4%
land use
4%
damage
4%
pollutant
4%
analysis
3%
effect
3%