direct spectrum
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Direct DNA damage — Direct DNA damage: The UV photon is directly absorbed by the DNA (left). One of the possible reactions from the excited state is the formation of a thymine thymine cyclobutane dimer (right). The direct DNA damage leads to sunburn, causing an… … Wikipedia
Spectrum — Spec trum, n.; pl. {Spectra}. [L. See {Specter}.] 1. An apparition; a specter. [Obs.] [1913 Webster] 2. (Opt.) (a) The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and observed… … The Collaborative International Dictionary of English
Spectrum analysis — Spectrum Spec trum, n.; pl. {Spectra}. [L. See {Specter}.] 1. An apparition; a specter. [Obs.] [1913 Webster] 2. (Opt.) (a) The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and… … The Collaborative International Dictionary of English
Direct-EI LC-MS interface — is a simple coupling technique between liquid chromatography and mass spectrometry (LC MS) developed by Achille Cappiello and coworkers.[1] It is based on the direct and efficient introduction of a liquid effluent into an electron ionization (EI) … Wikipedia
Direct Sequence Spread Spectrum — (DSSS) ist ein Frequenzspreizverfahren für die drahtlose Datenübertragung. Die Idee hierbei ist, ein Ausgangssignal mittels einer vorgegebenen Bitfolge zu spreizen. Diese Bitfolge wird auch Spreizcode oder Chipping Sequenz genannt. Allgemeines… … Deutsch Wikipedia
Direct torque control — (DTC) is one method used in variable frequency drives to control the torque (and thus finally the speed) of three phase AC electric motors. This involves calculating an estimate of the motor s magnetic flux and torque based on the measured… … Wikipedia
Direct-sequence code division multiple access — (DS CDMA) is a multiple access scheme based on direct sequence spread spectrum, by spreading the signals from/to different users with different codes. It is the most widely used type of CDMA. Click here for a detailed explanation … Wikipedia
Direct-sequence spread spectrum — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Spectrum (functional analysis) — In functional analysis, the concept of the spectrum of a bounded operator is a generalisation of the concept of eigenvalues for matrices. Specifically, a complex number λ is said to be in the spectrum of a bounded linear operator T if… … Wikipedia
Spectrum analyzer — A spectrum analyzer Spectrum analyzer display A spectrum analyzer measures the magnitude of an input signal versus frequency with … Wikipedia
Spectrum (TV channel) — Infobox Network network name = Spectrum network headquarters = Chicago, IL network type = Pay television network (movies, sports) available = United States owner = United Cable launch date = key people = past names = website = Spectrum was a… … Wikipedia