Engineering & Materials Science
Catalysts
56%
Adsorption
54%
Palm oil
50%
Biodiesel
49%
Oils
44%
Activated carbon
42%
Acids
42%
Water
39%
Gases
38%
Chitosan
38%
Electrolysis
35%
Temperature
35%
Enzymes
33%
Degradation
31%
Fruits
30%
Zeolites
30%
Wastewater
29%
Methanol
28%
Plasmas
27%
Adsorbents
27%
Membranes
26%
Nanotubes
25%
Lipases
25%
Ozone
23%
Hydrogen production
23%
Biomass
22%
Ozonization
22%
Composite materials
22%
Hydrogen
22%
Negative ions
21%
Dyes
21%
Chemical analysis
21%
Cellulose
21%
Carbon nanotubes
20%
Carbon
20%
Natural gas
19%
Photocatalysts
19%
Pyrolysis
19%
Glycerol
19%
Fermentation
19%
Liquids
19%
Titanium
18%
Bacteria
18%
Economics
18%
Ethanol
18%
Sodium hydroxide
17%
Esters
17%
Carbon dioxide
17%
Rare earth elements
17%
Flow rate
17%
Model predictive control
17%
Glycols
16%
Ions
16%
Bubble columns
16%
Candida
16%
Leaching
15%
Antioxidants
15%
Methane
15%
Vegetable oils
15%
Ethers
15%
Electricity
15%
Phenols
14%
Nanoparticles
14%
Glow discharges
14%
Wastewater treatment
14%
Industry
13%
Recovery
13%
Oxidation
13%
Bioethanol
13%
Costs
13%
Coal
13%
Proteins
13%
Economic analysis
12%
Substrates
12%
Fatty acids
12%
Lanthanum
12%
Ligands
12%
Aspergillus
12%
Hydrogen bonds
12%
Nitrogen
11%
Characterization (materials science)
11%
Scanning electron microscopy
11%
Purification
11%
Bagasse
11%
Fibers
11%
Straw
11%
Polypropylenes
11%
Betaines
11%
Air
11%
Escherichia coli
11%
Mineral oils
11%
Distillation
11%
Thermodynamics
11%
Pectins
10%
Metals
10%
Salts
10%
Molar ratio
10%
Sonication
10%
Plastics
10%
Biogas
10%
Physics & Astronomy
oils
100%
Indonesia
59%
synthesis
51%
activated carbon
50%
antioxidants
45%
catalysts
45%
electrolysis
37%
biomass
33%
reactors
32%
leaves
31%
acids
31%
fatty acids
31%
fruits
29%
products
28%
degradation
28%
water
28%
picrates
27%
characterization
24%
gases
23%
enzymes
23%
pyrolysis
22%
adsorption
22%
proteins
22%
glycols
21%
rice
21%
esters
21%
zeolites
20%
fermentation
20%
tobacco
20%
economic analysis
20%
preparation
20%
ethyl alcohol
20%
bacteria
19%
economics
19%
purification
19%
drugs
18%
methyl alcohol
18%
anions
17%
natural gas
17%
nanotubes
16%
surfactants
16%
optimization
16%
hydrogen production
16%
phenols
16%
performance
15%
formulations
15%
eutectics
15%
temperature
15%
betaines
15%
oxidation
14%
food
14%
Escherichia
14%
carbon nanotubes
14%
crude oil
14%
ligands
13%
ozone
13%
streptococcus
13%
glycerols
13%
industries
13%
vegetables
13%
flow velocity
13%
isolation
12%
biofilms
12%
carbon dioxide
12%
cancer
12%
nanoparticles
12%
cells
11%
lignin
11%
carbon
11%
cellulose
11%
liquefied natural gas
11%
air
11%
injection
11%
glow discharges
11%
electricity
11%
pretreatment
10%
microparticles
10%
crack opening displacement
10%
lipids
10%
moisture content
10%
membranes
10%
hydrogen
10%
Chlorella
10%
fertilizers
10%
hydrolysis
10%
dyes
10%
activity (biology)
10%
titanium
10%
composite materials
10%
fishes
9%
larvae
9%
energy consumption
9%
delivery
9%
ions
9%
liquids
9%
adsorbents
9%
nitrates
9%
simulation
9%
bubbles
9%
Aspergillus
9%
Earth & Environmental Sciences
oil
35%
catalyst
33%
gas
24%
electrokinesis
22%
reactor
21%
activated carbon
20%
fruit
19%
effect
19%
pyrolysis
19%
natural gas
16%
zeolite
15%
temperature
15%
membrane
14%
electricity
14%
economic analysis
14%
adsorption
13%
acid
13%
straw
13%
product
13%
wastewater
13%
rice
12%
methanol
12%
rate
12%
enzyme
12%
removal
11%
biomass
11%
ethanol
11%
plasma
10%
method
10%
fatty acid
10%
dye
10%
liquid
10%
hydrogen
9%
degradation
9%
ion
9%
fuel cell
9%
kinetics
9%
biogas
8%
air
8%
economics
8%
ozone
8%
energy
8%
antioxidant
8%
diesel
8%
price
8%
carbon nanotube
8%
heating
8%
electrolyte
8%
purification
8%
cellulose
7%
chemical
7%
analysis
7%
hydrocarbon
7%
protein
7%
test
7%
raw material
7%
material
7%
gas field
7%
methane
7%
ozonation
7%
water
6%
cell
6%
vegetable oil
6%
maize
6%
battery
6%
bacterium
6%
substrate
6%
cost
6%
fiber
6%
hydrolysis
6%
simulation
6%
carbon
6%
alcohol
6%
manure
6%
parameter
6%
acetate
6%
distillation
6%
plastic
5%
bubble
5%
fermentation
5%
lithium
5%
petroleum
5%
industry
5%
aqueous solution
5%
energy consumption
5%
wastewater treatment
5%
alternative energy
5%
surface area
5%
sulfonate
5%
liquefied natural gas
5%
thermodynamics
5%
ester
5%
ether
5%
nanoparticle
5%
carbon dioxide
5%
cobalt
5%