Engineering & Materials Science
Accidents
22%
Acoustic impedance
14%
Actuators
14%
Availability
15%
Backstepping
21%
Braking
53%
Cables
15%
Carrier sense multiple access
23%
Communication
77%
Condition monitoring
46%
Control systems
100%
Controllers
13%
Costs
20%
Data communication systems
51%
Electric arcs
23%
Electric potential
13%
Energy conservation
54%
Energy utilization
97%
Fast Fourier transforms
13%
Feature extraction
14%
Formal methods
14%
Global system for mobile communications
20%
HIgh speed networks
23%
IEEE Standards
20%
Inspection
14%
Integer programming
24%
Level control
21%
Monitoring
33%
Networks (circuits)
31%
Neural networks
25%
Nonlinear systems
16%
Planning
19%
Population Density
15%
Power transmission
20%
Quality of service
20%
Rails
88%
Rapid transit
25%
Recovery
19%
Regenerative braking
25%
Simulators
26%
State estimation
19%
Subways
13%
Switches
20%
Testing
24%
Throughput
13%
Topology
30%
Traffic control
28%
Trajectories
68%
Wavelet analysis
22%
Wireless networks
15%
Business & Economics
Communication
11%
Condition Monitoring
7%
Energy
15%
Energy Consumption
28%
Energy Prices
7%
Energy Saving
5%
Energy Systems
23%
Environmental Concern
7%
Integrated
13%
Interference
18%
Mobile Communication
8%
Net Energy
5%
Performance
7%
Process Optimization
6%
Propagation
5%
Rail
5%
Rail Network
14%
Railway
53%
Regeneration
23%
Scarcity
5%
Simulation
6%
Strategic Assets
6%
Telecommunications
5%
Throughput
10%
Train
58%
Trajectory
30%
Social Sciences
accident
8%
cause
9%
China
12%
communication
10%
commuter
24%
education
5%
energy
25%
energy consumption
36%
energy saving
8%
financial loss
5%
German Federal Railways
82%
interference
18%
living conditions
19%
migration
13%
monitoring
19%
performance
12%
population density
9%
scenario
6%
simulation
11%
traffic control
27%
traffic planning
7%