• Thumbnail for Linear time-invariant system
    O n { x } = O n { ∑ k = − ∞ ∞ x [ k ] ⋅ δ [ m − k ] ;   m } = ∑ k = − ∞ ∞ x [ k ] ⋅ O n { δ [ m − k ] ;   m } , {\displaystyle {\begin{aligned}y[n]=O...
    36 KB (5,855 words) - 23:05, 1 September 2024
  • Thumbnail for Revised Romanization of Korean
    To be specific, under the McCune–Reischauer system, the consonants ㄱ (k), ㄷ (t), ㅂ (p) and ㅈ (ch) and ㅋ (k'), ㅌ (t'), ㅍ (p') and ㅊ (ch') became indistinguishable...
    15 KB (1,333 words) - 18:40, 19 August 2024
  • Thumbnail for List of Android smartphones
    List of Android smartphones (category Android (operating system) devices)
    list of devices that run on the Android operating system. Contents 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z References Telephones portal...
    443 KB (16,373 words) - 12:45, 29 September 2024
  • Thumbnail for O.K. Corral (building)
    The O.K. Corral (Old Kindersley) was a livery and horse corral from 1879 to about 1888 in the mining boomtown of Tombstone, Arizona Territory, in the...
    14 KB (1,326 words) - 03:41, 28 September 2024
  • Thumbnail for Stellar classification
    classified under the Morgan–Keenan (MK) system using the letters O, B, A, F, G, K, and M, a sequence from the hottest (O type) to the coolest (M type). Each...
    104 KB (11,337 words) - 14:30, 1 October 2024
  • municipal units of the local government system of the country. Contents:  Top 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Abano Terme Abbadia...
    151 KB (12,275 words) - 10:04, 15 September 2024
  • Thumbnail for Bicarbonate buffer system
    as shown in the following reaction: C O 2 + H 2 O ⇄ H 2 C O 3 ⇄ H C O 3 − + H + {\displaystyle {\rm {CO_{2}+H_{2}O\rightleftarrows H_{2}CO_{3}\rightleftarrows...
    14 KB (1,723 words) - 07:34, 3 June 2024
  • o o l e a n λ y B o o l e a n . x B o o l e a n y F O R = λ x B o o l e a n λ y B o o l e a n . x B o o l e a n T y N O T = λ x B o o l e a n . x B o...
    18 KB (2,531 words) - 11:58, 10 August 2024
  • Thumbnail for O-type star
    An O-type star is a hot, blue-white star of spectral type O in the Yerkes classification system employed by astronomers. They have temperatures in excess...
    30 KB (3,350 words) - 19:46, 18 September 2024
  • Thumbnail for ABO blood group system
    corresponding to modern AB, A, B, and O. These two systems created confusion and potential danger in medical practice. Moss's system was adopted in Britain, France...
    59 KB (5,995 words) - 12:13, 1 October 2024