Physics & Astronomy
positrons
100%
cross sections
92%
scattering
88%
polarization
77%
collisions
67%
molecules
59%
electron impact
44%
energy
39%
electrons
38%
cubane
37%
excitation
28%
acetylene
25%
formulations
24%
expansion
21%
muons
20%
trapping
17%
polyatomic gases
16%
barium oxides
16%
configuration interaction
15%
flashover
14%
polyatomic molecules
13%
meteorology
13%
oxygen
13%
inelastic collisions
13%
copper oxides
13%
interactions
12%
quantum chemistry
11%
geometry
11%
scattering cross sections
11%
inclusions
11%
positronium
9%
rare earth elements
9%
breakdown
8%
electron energy
8%
microwaves
7%
carbon
7%
electron scattering
7%
variational principles
7%
gradients
7%
dipoles
7%
physics
7%
electric fields
6%
approximation
6%
motion simulation
6%
vapor phases
5%
scattering amplitude
5%
momentum transfer
5%
density functional theory
5%
hydrides
5%
atoms
5%
charge distribution
5%
methane
5%
Engineering & Materials Science
Electrons
45%
Molecules
25%
Nitrogen
20%
Electron temperature
19%
Positrons
17%
Acetylene
15%
Air
14%
Scattering
10%
Polarization
10%
X rays
10%
Temperature
8%
Gases
8%
Research laboratories
6%
X ray detectors
6%
Density functional theory
5%
Full width at half maximum
5%