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Catalytic converter
A catalytic converter is a device used to reduce the emissions from an internal combustion engine. Most commonly used in an automobile's exhaust system, catalytic converters are now commonly used on ... > more -
Automobile emissions control
Automobile emissions control covers all the technologies that are employed to reduce the air pollution-causing emissions produced by ... > more -
Nitrogen oxide
NOx is a generic term for the various nitrogen oxides produced during combustion. They are believed to aggravate asthmatic conditions, react with the oxygen in the air to produce ozone, which is also ... > more -
Consumer Behavior
Energy Policy
Mathematical Modeling
Educational Psychology
Computer Modeling
Sports Science
Macroeconomics
Macroeconomics is the economics sub-field of study that considers aggregate behavior, and the study of the sum of individual economic decisions. Macroeconomics can be used to analyze how best to ... > more -
Common ethanol fuel mixtures
Ethanol (ethyl alcohol) and methanol (methyl alcohol) are two types of alcohol fuels. The use of pure alcohols in internal combustion engines is only possible if the engine is designed or modified ... > more -
Wind Energy
Renewable Energy
Energy and the Environment
Environmental Science
Energy Technology
Energy Policy
Wind power
Wind power is the conversion of wind energy into more useful forms, such as electricity, using wind turbines. At the end of 2006, worldwide capacity of wind-powered generators was 73.9 gigawatts; ... > more
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