Abbreviation for various oxides of nitrogen, including NO (nitric oxide), NO 2 (nitrogen dioxide), or N 2 O (nitrous oxide). These gaseous pollutants can be transformed in the presence of water to ...
Any function of time ''f''(''t'') is periodic with period ''t'' if ''f''(''t'') = ''f''(''t'' + τ) for all times ''t'', where τ is the smallest number for which this equality holds. Without ...