Earth & Environmental Sciences
permittivity
76%
time domain reflectometry
69%
ground penetrating radar
68%
state of the art
55%
trial
52%
wavelength
49%
infrastructure
47%
road
46%
soil
27%
services
24%
trench
24%
clay soil
23%
sensor
17%
acoustic method
17%
probe
17%
analysis
17%
water content
16%
environmental consequence
15%
detection
15%
electromagnetic field
14%
environmental economics
14%
pavement
13%
deflection
13%
methodology
12%
electric field
12%
soil type
12%
excavation
11%
acoustics
10%
monitoring data
10%
pipe
10%
society
10%
data analysis
8%
inversion
7%
measuring
7%
program
6%
project
6%
laboratory
5%
method
5%
Agriculture & Biology
time domain reflectometry
100%
wavelengths
61%
soil
32%
clay soils
30%
probes (equipment)
25%
fine-textured soils
19%
water content
18%
methodology
14%
soil properties
13%
data analysis
12%
soil sampling
11%
monitoring
8%
Engineering & Materials Science
Radar
52%
Acoustics
21%
Leak detection
16%
Electromagnetic fields
13%
Sensors
13%
Excavation
13%
Electric fields
11%
Soils
10%
Economics
8%
Networks (circuits)
7%