space-and-time quadrature
51Keith Henson — Infobox Scientist name = Keith Henson image width = 200px caption = Keith Henson in Palo Alto, California birth date = 1942 birth place = United States death date = death place = residence = Arizona citizenship = United States nationality =… …
52SECAM — SECAM, also written SÉCAM (Séquentiel couleur à mémoire,[1] French for Sequential Color with Memory ), is an analog color television system first used in France. A team led by Henri de France working at Compagnie Française de Télévision (later… …
53Radio — is the transmission of signals, by modulation of electromagnetic waves with frequencies below those of visible light.Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of… …
54Modem — For other uses, see Modem (disambiguation). A modem (modulator demodulator) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. The… …
55Modified discrete cosine transform — The modified discrete cosine transform (MDCT) is a Fourier related transform based on the type IV discrete cosine transform (DCT IV), with the additional property of being lapped: it is designed to be performed on consecutive blocks of a larger… …
56Digital terrestrial television — List of digital television broadcast standards DVB standards (Europe) DVB S (satellite) DVB S2 DVB T (terrestrial) DVB T2 DVB C …
57Pseudospectral optimal control — Pseudospectral (PS) optimal control is a computational method for solving optimal control problems. PS optimal controllers have beenextensively used to solve a wide range of problems such as those arising in UAV trajectory generation, missile… …
58Inverse-square law — In physics, an inverse square law is any physical law stating that some physical quantity or strength is inversely proportional to the square of the distance from the source of that physical quantity. Areas of application In particular the… …
59List of mathematics articles (A) — NOTOC A A Beautiful Mind A Beautiful Mind (book) A Beautiful Mind (film) A Brief History of Time (film) A Course of Pure Mathematics A curious identity involving binomial coefficients A derivation of the discrete Fourier transform A equivalence A …
60Dipole antenna — A schematic of a half wave dipole antenna connected to an unbalanced coaxial cable. Better practice is to connect the balanced dipole to the unbalanced line with a balun. A dipole antenna is a radio antenna that can be made of a simple wire, with …
