Traditionally, car tires have been filled with compressed air. Air is 78 percent nitrogen and just under 21 percent oxygen, ...

The catalytic converter is required on nearly every car to remove harmful gases, such as nitrogen oxide and carbon monoxide, from your exhaust. Platinum and other heavy metals such as palladium ...

Kurchaba received her Ph.D. on 11 June. While cars, power plants, and industries are reducing their nitrogen oxide emissions (NO x), the shipping industry is lagging behind. Despite stricter ...