Earth & Environmental Sciences
heat pump
91%
saline intrusion
40%
tariff
39%
residential building
37%
wind power
36%
hard rock
35%
groundwater
34%
Postglacial
33%
energy efficiency
32%
waste disposal
30%
groundwater flow
29%
plume
25%
catchment
23%
aquifer
23%
borehole
22%
electrical resistivity
22%
surface water
21%
monitoring data
19%
water monitoring
19%
air
19%
energy storage
18%
pollutant
18%
economics
18%
simulation
18%
dike
17%
boiler
17%
protocol
17%
evaluation
14%
bedrock
13%
outcrop
13%
smart grid
13%
tomography
12%
electrification
11%
monitoring
11%
parameter
10%
water
10%
magnetic survey
10%
leakage
9%
sandstone
9%
seismic refraction
9%
border
8%
geophysical method
8%
remediation
8%
ground penetrating radar
8%
Western Europe
8%
demand
8%
heating
7%
cost
7%
effect
7%
aquifer characterization
7%
Engineering & Materials Science
Pumps
100%
Air source heat pumps
90%
Hot Temperature
75%
Thermal energy
68%
Boilers
31%
Temperature
31%
Vapors
28%
Heating
27%
Wind power
27%
Energy efficiency
24%
Economics
20%
Air
19%
Water
18%
Water supply
15%
Fossil fuels
13%
Space heating
12%
Compressors
9%
Gases
8%
Carbon
7%
Costs
6%
Radiators
5%
Dynamical systems
5%