Engineering & Materials Science
Fermentation
96%
Diffusion in gases
72%
Hydrolysis
69%
Hydrogen
64%
Fuel cells
60%
Organic acids
53%
Detoxification
47%
Food waste
44%
Starch
35%
Hydrogen fuels
35%
Activated carbon
35%
Platinum
33%
Electrodialysis
32%
Electricity
31%
Proton exchange membrane fuel cells (PEMFC)
31%
Hybrid vehicles
30%
Nanoparticles
28%
Electrolytes
28%
Compaction
24%
Hydrogen production
22%
Acoustic impedance
21%
Polymers
21%
Escherichia coli
18%
Electrolysis
16%
Ultrasonics
16%
Substrates
16%
Fleet operations
15%
Glucose
14%
Lead acid batteries
12%
Battery Pack
11%
Titanium alloys
9%
Polytetrafluoroethylenes
9%
Transmission electron microscopy
9%
Carbon
9%
Anaerobic digestion
9%
Furfural
8%
Compliance
8%
Polysaccharides
8%
Biofuels
8%
Crops
8%
Scanning electron microscopy
7%
Contact resistance
7%
Porosity
7%
Electrodes
7%
Water treatment
7%
Electric properties
6%
Nuclear power plants
6%
Nitrogen
6%
Biomass
6%
Wind power
6%
Membranes
6%
Byproducts
5%
Networks (circuits)
5%
Physics & Astronomy
fuel cells
100%
gaseous diffusion
73%
hydrogen fuels
43%
hydrogen
41%
fermentation
39%
activated carbon
39%
starches
37%
hydrolysis
33%
hydrogenation
31%
vehicles
28%
cycles
28%
electrolytes
23%
membranes
21%
protons
18%
delivery
18%
polymers
16%
characterization
16%
lead acid batteries
15%
dehydrogenation
12%
products
12%
resources
11%
reaction time
11%
trucks
10%
reactors
8%
balls
8%
performance
8%
desorption
8%
polysaccharides
7%
water treatment
7%
hydrogen production
7%
inhibitors
6%
glucose
6%
permeability
6%
contact resistance
6%
kinetics
5%
microstructure
5%
porosity
5%
diffraction
5%
Earth & Environmental Sciences
hydrogen
61%
fermentation
52%
organic acid
38%
refinery
36%
food waste
32%
electricity
31%
hydrolysis
26%
price
23%
economy
22%
energy
17%
organic waste
15%
biofuel
15%
substrate
14%
electrokinesis
13%
biological method
9%
wind power
8%
chemical method
8%
electricity generation
8%
fuel cell
8%
surplus
7%
nuclear power plant
7%
anaerobic digestion
7%
ethanol
6%
cyanobacterium
6%
glucose
6%
power plant
6%
methane
5%
microorganism
5%
fold
5%
crop
5%