Physics & Astronomy
fuel cells
89%
breathing
86%
electrodes
47%
air
45%
environmental quality
43%
direct current
40%
polychlorinated biphenyls
34%
boosters
31%
printers
31%
electrode materials
29%
food
28%
health
27%
folding
26%
clocks
25%
metal oxides
24%
catalysts
23%
radiant flux density
23%
manipulators
22%
anodes
21%
cations
21%
transition metals
21%
manufacturing
21%
current density
18%
nanoparticles
17%
coatings
17%
carbon
17%
optimization
16%
fluids
15%
cells
13%
energy
7%
Engineering & Materials Science
Microbial fuel cells
100%
Microfluidics
81%
Electrodes
58%
Nanostructured materials
47%
Air
42%
Transition metal oxides
33%
Watches
24%
Positive ions
23%
Quality management
23%
Networks (circuits)
21%
Polychlorinated biphenyls
20%
Conversion efficiency
20%
Energy harvesting
19%
Nanoparticles
19%
Current density
18%
Anodes
18%
Catalysts
16%
Internet of things
16%
Carbon
14%
Coatings
14%
Health
14%
Substrates
13%
Fluids
12%
Monitoring
10%
Costs
7%
Experiments
6%