Engineering & Materials Science
Radar
100%
Pavements
70%
Permittivity
64%
Microwaves
47%
Asphalt pavements
39%
Ground penetrating radar systems
35%
Resonators
32%
Continuous wave radar
28%
Calibration
27%
Doppler radar
27%
Signal detection
23%
Asphalt
23%
Core samples
22%
Insertion losses
21%
Telecommunication traffic
21%
Antennas
20%
Radar countermeasures
18%
Electric network analyzers
18%
Military radar
18%
Timing circuits
16%
Satellites
16%
Scanning antennas
16%
Air
15%
Torque
15%
Radar signal processing
15%
Clocks
13%
Dielectric resonators
13%
Surveying
12%
Low noise amplifiers
12%
Radio receivers
12%
Monitoring
11%
Discrete Fourier transforms
11%
Experiments
10%
Power converters
10%
Sensors
10%
Plastic sheets
10%
Cavity resonators
9%
Road construction
9%
Hydrogen masers
8%
Data acquisition
8%
Electronic equipment
8%
Microwave resonators
8%
Acoustic surface wave devices
8%
Costs
7%
Frequency standards
7%
Cesium
7%
Reflectometers
7%
Electromagnetic fields
7%
Frequency stability
6%
Computer hardware
6%
Physics & Astronomy
ground penetrating radar
33%
Doppler radar
33%
radar
29%
roads
22%
transformers
22%
power supplies
21%
rocks
20%
rooms
19%
antennas
18%
radio frequencies
17%
down-converters
16%
asphalt
14%
broadband
14%
audio frequencies
14%
microwaves
14%
evaluation
13%
sensors
12%
signal transmission
12%
square waves
12%
pulses
10%
respiration
10%
logic
10%
low noise
10%
installing
9%
hardware
9%
breathing
9%
analyzers
9%
surface layers
9%
slabs
9%
electromagnetic fields
8%
coils
8%
amplifiers
8%
plastics
8%
police
7%
requirements
7%
scanning
6%
air
6%
electrocardiography
5%
pulse rate
5%
walking
5%
Chemical Compounds
Permittivity
23%
Frequency Standard
19%
Wave
19%
Dielectric Constant
19%
Dielectric Material
18%
Surface
16%
Application
9%
Communication
9%
Homogeneity
9%
Quartz
9%
Microwave
8%
Resonance
8%
Reflection
8%
Simulation
6%
Hydrogen
5%
Purity
5%
