Mathematics
Ignition
100%
Engine
90%
Combustion
85%
Compression
72%
Performance
42%
Diesel Engine
38%
Physical property
29%
Heat
22%
Corn
18%
Experimental Investigation
17%
Stroke
15%
Injection
13%
Alternatives
7%
Earth & Environmental Sciences
engine
65%
compression
55%
combustion
54%
diesel
33%
diesel engine
27%
physical property
18%
waste oil
15%
alternative fuel
15%
fuel consumption
14%
oil
13%
maize
10%
experimental study
9%
rate
7%
Engineering & Materials Science
Biodiesel
75%
Ignition
63%
Engines
45%
Engine cylinders
33%
Oils
17%
Physical properties
15%
Diesel engines
15%
Alternative fuels
10%
Direct injection
9%
Hot Temperature
8%
Brakes
8%
Fuel consumption
8%
Chemistry
Biodiesel
75%
Cylinder
19%
Pressure
15%
Fuel
14%
Heat
13%
Corn Oil
12%