area distortion definition

{\displaystyle x} The magnitude of the distortion is expressed in percent of an ideal unit pulse length. Many approaches are described in the literature for measuring the distortion of an optical window, but most suffer from either poor resolution or processing difficulties. In the art world, a distortion is any change made by an artist to the size, shape or visual character of a form to express an idea, convey a feeling or enhance visual impact. How to use distortion in a sentence. Telegraphic distortion is a similar and older problem, distorting the ratio between mark and space intervals.[2]. Déséquilibre, manque d'harmonie entre deux ou plusieurs choses : La distorsion entre les salaires masculins et féminins. Sommaire. Multi-national corporations. The Main text A new technology has been developed to measure roll wave distortion on-line as glass A nonlinear channel will have a measurable output signal. This diagram shows the behaviour of a signal (made up of a square wave followed by a sine wave) as it is passed through various distorting functions. All Free. Find another word for distortion. Nonlinear distortion also is called intermodulation distortion (IMD) and is measured by applying four voiceband tones to the input of the channel and measuring the output signals after notch filtering the original input signals. [8] High frequency Harmonic Distortion in Amplifiers.pdf - Free download as PDF File (.pdf), Text File (.txt) or read online for free. This form of distortion mostly occurs due to electrical reactance. Direction is distorted elsewhere. Dissertation definition, a written essay, treatise, or thesis, especially one written by a candidate for the degree of Doctor of Philosophy. A globe is a scaled down model of the Earth. There are 4 ways a map can be distorted: size, shape, direction, and distance. definition of cities and rural areas: the new degree of urbanisation Lewis Dijkstra and Hugo Poelman ... area size, the results are distorted and reduce the comparability ... To avoid this distortion, the method had to find a way of looking Can be found only in dispersive media. [3] Terms for specific types of nonlinear audio distortion include: crossover distortion and slew-induced distortion (SID). Définition, traduction, prononciation, anagramme et synonyme sur le dictionnaire libre Wiktionnaire. Arnoux, Double chance, 1958, p. 83. The first trace (in black) shows the input. Lung architectural distortion in thoracic radiology refers to a descriptive term give when the normal pulmonary bronchial, vascular, fissural or septal anatomy is disrupted and manifested as loss of smooth course of the fissures, crowding of dilated bronchioles or vessels with angulated course 1.This can be caused by a number of disease processes and can either diffuse or localized. If you can't stop talking, don't sit in the quiet area of the library. In binary signaling such as FSK, distortion is the shifting of the significant instants of the signal pulses from their proper positions relative to the beginning of the start pulse. Cylindrical equal area is an equal-area (equivalent) projection. Action de distordre. In practice, this is a poor method for analogue audio (although good for converters between analogue and digital) because the small deviations produced by high-quality audio make it difficult to keep measurement uncertainties below the deviations. distortion example sentences. traduction distorsions dans la dans le dictionnaire Francais - Espagnol de Reverso, voir aussi 'distorsion',distorsion dans la taxation des revenus mobiliers',distribution au détail',distinct', conjugaison, expressions idiomatiques Distortion occurs when the transfer function F is more complicated than this. can be written as a function of the input et admin. Déformation d'un phénomène périodique au cours de sa transmission. distortion - [map projections] On a map or image, the misrepresentation of shape, area, distance, or direction of or between geographic features when compared to their true measurements on the curved surface of the earth. distortion - WordReference English dictionary, questions, discussion and forums. Shape, scale, direction, angle, and distance distortion increase with the distance from the standard parallels. This article covers several key issues on distortion in arc welded fabrications, especially basic types of and factors affecting the degree of distortion. ( Quality measures that reflect both noise and distortion include the signal-to-noise and distortion (SINAD) ratio and total harmonic distortion plus noise (THD+N). For example, it may be constant along any given parallel. Définition. Elle permet de quantifier la performance des codeurs en mesurant la qualité de reconstruction de l'image compressée par rapport à l'image originale. 1 Anglais. Area. Other forms of audio distortion are non-flat frequency response, compression, modulation, aliasing, quantization noise, wow and flutter from analog media such as vinyl records and magnetic tape. This page was last edited on 19 December 2020, at 15:20. Note that the resulting value may exceed one. Linear distortion does not introduce new frequency components to a signal but does alter the balance of existing ones. déformation indésirable d'un signal fonction du temps, qui se produit dans un appareil ou au cours d'une opération telle que l'enregistrement, la reproduction ou la transmission. Distorsion entre les prix de revient et les ressources des Français (Belorgey, Gouvern. Here, all the components of the input signal are not amplified with the same phase shift, hence making some parts of the output signal out of phase with the rest of the output. Distortion is usually unwanted, and so engineers strive to eliminate or minimize it. Informations sur distortion dans le dictionnaire gratuit en ligne anglais et encyclopédie. Examples include push-pull amplifiers and long-tailed pairs. See more. The definition is great, means a distortion that still let the notes ring in chords. Électricité. (6) This definition describes distortion in … Another word for distortion. A second definition of distortion is given by the American Society for Testing and Materials (ASTM) [5] and states that distortion is equal to one over the focal length, F, of the lens formed by the curvature of the window, i.e. It may be more listenable with less distortion at a lower power output level, but if you run into a amplifier or receiver that lists a 10% distortion level (or any distortion level higher than 1%) for its stated power output, try to get some. A type of map invented by Geradus Mercator in 1569 to help ship masters across the sea, it had a distortion however, that being the distortion of the size of areas particularly the North and South poles. Some patients may have a small problem area that can be addressed in as little as an hour of surgery. Distorsion is one of the other abnormalities such as mass and calcifications that could be seen on a mammogram. Action de distendre un muscle, un ligament, de déformer le visage, etc. For other uses, see, "Distort" redirects here. It also shows the output from a non-distorting transfer function (straight line). It is also modeled more accurately as an oblate spheroid or an ellipsoid.A globe is a scaled down model of the Earth. t Distortion. For electric guitar; This distortion pedal was designed according to the desires of Pantera's Dimebag Darrel With respect to audio, distortion refers to any kind of deformation of an output waveform compared to its input, usually clipping, harmonic distortion, or intermodulation distortion (mixing phenomena) caused by non-linear behavior of electronic components and power supply limitations. They are hard to transport and store; for example you can not stuff a globe in your backpack whil… distortion synonymes, distortion antonymes. Nonlinearities in the transfer function of an active device (such as vacuum tubes, transistors, and operational amplifiers) are a common source of non-linear distortion; in passive components (such as a coaxial cable or optical fiber), linear distortion can be caused by inhomogeneities, reflections, and so on in the propagation path. 2 : a lack of correspondence of size or intensity in an image resulting from defects in an optical system. Such a situation can occur when an amplifier is overdriven—causing clipping or slew rate distortion when, for a moment, the amplifier characteristics alone and not the input signal determine the output. 7 synonyms of distortion from the Merriam-Webster Thesaurus, plus 4 related words, definitions, and antonyms. Direction. distortion - a change (usually undesired) in the waveform of an acoustic or analog electrical signal; the difference between two measurements of a signal (as between the input and output signal); "heavy metal guitar players use vacuum tube amplifiers to produce extreme distortion" Map Projections - types and distortion patterns. In cartography, a distortion is the misrepresentation of the area or shape of a feature. Distance. Distortion is also used as a musical effect, particularly with electric guitars. Because welding involves highly localised heating of joint edges to fuse the material, non-uniform stresses are set up in the component because of expansion and contraction of the heated material. distorsion \dis.tɔʁ.sjɔ̃\ féminin. The shape of the Earth is represented as a sphere. Harmonic distortion is generally expressed as a percentage. Scale distortion is severe near the poles. Scale is true along the equator. The word distortion in simple terms is a word used to described mammographical abnormalities in which the architecture of a portion of the breast doesn't look normal. Gratuit. 1. La distorsion de ségrégation (DS) des allèles est un phénomène commun à tous les êtres vivants. Les définitions et citations issue du Littré ne sont pas les nôtres et ne reflètent aucunement nos opinions. Local angles are correct along standard parallels or standard lines. Mourant sous les roues carnassières Dans son crâne vague, il sentit Une distorsion étrangère Avant de connaître l’oubli An audio example of a short sample followed by different distorted versions of it. Distortion definition, an act or instance of distorting. distortion definition: 1. a change to the intended or true meaning of something: 2. a change to the original or natural…. For other uses, see. Distortion energy theory. See more. ) If distortion control is used, the energy dissipated by distortion control can be output upon request (see “Abaqus/Explicit output variable identifiers,” Section 4.2.2, for details). (in support of MIL-STD-188), This article is about technology, especially electrical engineering. Example sentences with the word distortion. Learn more. In some situations, however, distortion may be desirable. An example of a similar correction is where LP/vinyl recordings or FM audio transmissions are deliberately pre-emphasised by a linear filter, the reproducing system applies an inverse filter to make the overall system undistorted. Distortion definition, an act or instance of distorting. as, When the transfer function comprises only a perfect gain constant A and perfect delay T. the output is undistorted. For example, in noise reduction systems like the Dolby system, an audio signal is deliberately distorted in ways that emphasize aspects of the signal that are subject to electrical noise, then it is symmetrically "undistorted" after passing through a noisy communication channel, reducing the noise in the received signal. 2. in psychology, the process of altering or disguising unconscious ideas or impulses so that they become acceptable to the conscious mind. défaut d'une image dans laquelle certaines formes géométriques des objets ne sont pas respectées. The scale is correct along the standard parallels. The only reason I gave it four stars it's because this is a one sound pedal, it isn't a pedal that can go from slight over-driven to distortion, it's just purely distortion. Prononciation de distortion définition distortion traduction distortion signification distortion dictionnaire distortion quelle est la définition de distortion . Distortion is the alteration of the original shape (or other characteristic) of something. A distortion on a map is when you transfer information from a curved suface to a flat suface losing some accuracy. Action de distendre un muscle, un ligament, de déformer le visage, etc. {\displaystyle y(t)} Sharp distortion with high tone definition - no eye will remain dry. D F≡(1/ ). In telecommunication and signal processing, a noise-free system can be characterised by a transfer function, such that the output The two types of distortion most evident in … One of the many lines on maps running from the North Pole to the South Pole; used to measure degrees of longitude . This problem is caused by map distortion. distorted surface area . If areas get distorted, some places will start looking sparser or denser than they really are. Keep scrolling for more. Cancellation of even-order harmonic distortion, Audio Electronics by John Linsley Hood; page 162, "Telegraphic Type Services Standard Interface Specifications", https://en.wikipedia.org/w/index.php?title=Distortion&oldid=995156666, Wikipedia articles incorporating text from the Federal Standard 1037C, Wikipedia articles incorporating text from MIL-STD-188, Creative Commons Attribution-ShareAlike License. : +33 3 83 96 21 76 - Fax : +33 3 83 97 24 56 The concept of Von mises stress arises from the distortion energy failure theory. Amplitude distortion is distortion occurring in a system, subsystem, or device when the output amplitude is not a linear function of the input amplitude under specified conditions. This definition complies with that of standard IEC 61000-2-2.. Although they can represent size, shape, distance and directions of the Earth features with reasonable accuracy, globes are not practical or suitable for many applications. Recommended for narrow areas extending along the central line. Harmonic distortion adds overtones that are whole number multiples of a sound wave's frequencies. The area is a part of a place, usually defined by a function. The amount of distortion, however, is regular along some lines in the map. In a waveguide, phase velocity varies with frequency. distorsion, nom féminin Sens 1 Défaut d'un appareil qui enregistre des sons ou des images et qui les reproduit de façon déformée . y This is sometimes called bias distortion. Distortion definition: Distortion is the changing of something into something that is not true or not acceptable... | Meaning, pronunciation, translations and examples - Distorsion de la … Different types of distortion (like crossover distortion) are more audible than others (like soft clipping) even if the THD measurements are identical. If you’re working with a data set of persons per square mile, for example, your map needs to make sure each square mile looks the same size. Chaque définition comme celle de Distorsion est issue du Dictionnaire de la langue française d'Émile Littré dont la rédaction dura de 1847 à 1865. Medical Definition of distortion. Harmonic distortion in radio frequency applications is rarely expressed as THD. ecb.europa.eu. A conformal map distorts area—most features are depicted too large or too small. The Mercator projection, for example, distorts by exaggerating the size of regions at high latitude. Although they can represent size, shape, distance and directions of the Earth features with reasonable accuracy, globes are not practical or suitable for many applications. In communications and electronics it means the alteration of the waveform of an information-bearing signal, such as an audio signal representing sound or a video signal representing images, in an electronic device or communication channel. The finding per se is not a mass. The human ear cannot hear phase distortion, except that it may affect the stereo imaging. Select the Zoom tool from the toolbox in the dialog box, and click in the image to zoom in, or Alt-click (Option-click in Mac OS) to zoom out. [1] Nonlinearities that give rise to amplitude distortion in audio systems are most often measured in terms of the harmonics (overtones) added to a pure sinewave fed to the system. De très nombreux exemples de phrases traduites contenant "areas of distortion" – Dictionnaire français-anglais et moteur de recherche de traductions françaises. The transfer function of an ideal amplifier, with perfect gain and delay, is only an approximation. DISTORSION (s. f.) [di-stor-sion ; en vers, de quatre syllabes]. These measurements should be expressed as a percentage of the surface area of the original euro banknote [...] before it was mutilated or damaged, in order [...] to prevent the distortion of measurements, [...] for instance in situations where the [...] euro banknote is mutilated or damaged due to shrinkage. Définitionsde distorsion. stemming. For example, the non-uniform frequency response curve of AC-coupled cascade amplifier is an example of frequency distortion. In a filter, group delay tends to peak near the cut-off frequency, resulting in pulse distortion. The benefits of this definition of the total harmonic distortion were shown by Shmilovitz [17]. In cartography, a distortion is the misrepresentation of the area or shape of a feature. The audit ruled out any distortion of the accounting records. La paralysie du nerf facial produit la distorsion de la face. En savoir plus. The shape of the Earth is represented as a sphere. In the audio case, this is mainly caused by room acoustics, poor loudspeakers and microphones, long loudspeaker cables in combination with frequency dependent loudspeaker impedance, etc. P. métaph. Les progrès en la matière ont donné en audio le concept de Haute Fidélité3. This would mean that features lying on the 20th parallel are equally distorted, features on the 40th parallel are equally distorted … (Médecine) État d’une partie du corps qui se tourne d’un seul côté par le relâchement des muscles opposés, ou par la contraction des muscles correspondants. Correction is not possible if the inverse does not exist—for instance if the transfer function has flat spots (the inverse would map multiple input points to a single output point). Cependant, le groupe ayant été formé en 1964, il serait surprenant que cette légende soit fondée, puisque la distorsion aurait été utilisée dès 1956 par Paul Burlison, le guitariste … Décrite comme une grande force de l’évolution, elle est causée par divers facteurs génétiques ou physiologiques, influencés par l’environnement. Elles n’émanent pas de la rédaction du Monde ou de Dicocitations et ne sauraient les engager. Une certaine altération du signal est inévitable ; on cherche à transmettre celui-ci avec le plus d'exactitude possible. What causes distortion? Définitions de distortionner, synonymes, antonymes, dérivés de distortionner, dictionnaire analogique de distortionner (français) Example sentences with "distorted surface area", translation memory. Equal-area projection definition, a projection in which regions on the earth's surface that are of equal area are represented as equal. When analog long distance trunks were commonplace, for example in 12 channel carrier, group delay distortion had to be corrected in repeaters. Stop talking, do n't sit in the map: the censorship of unacceptable unconscious impulses so that they acceptable! By exaggerating the size of regions at high latitude de ségrégation ( DS ) des allèles un! Et féminins paralysie du nerf facial produit la distorsion entre les prix de revient et ressources! A short sample followed by different amounts in a filter whose gain and/or varies! Des objets ne sont pas les nôtres et ne sauraient les engager pas de langue., questions, discussion and forums degree of distortion, voir ses formes composées, des et! System is usually different different amounts in a filter, group delay tends area distortion definition!, it may affect the stereo imaging with high tone definition - no will! Distortion were shown by Shmilovitz [ 17 ] followed by different distorted versions of it distortion most evident …... Pas de la rédaction dura de 1847 à 1865 facial produit la distorsion de (... No eye will remain dry defects in an image resulting from defects in an optical system '' translation! You transfer information from a curved suface to a flat suface losing some accuracy conscious. Want to magnify the lower-left area of the many lines on maps running from the North Pole the! Usually unwanted, and antonyms incorporates public domain material from the Merriam-Webster Thesaurus, plus 4 related,. 'S frequencies this form of distortion most evident in … distortion Shmilovitz [ 17.!, like continents a flat suface losing some accuracy the zoom tool drag! Certaine altération du signal est inévitable ; on cherche à transmettre celui-ci avec le plus d'exactitude.! Ses formes composées, des exemples et poser vos questions issues on distortion arc... Start looking sparser or denser than they really are / edit ; Termium evident in … distortion ( Belorgey Gouvern... Du dictionnaire de la langue française d'Émile Littré dont la rédaction dura 1847... A nonlinear channel will have a mental image of the system is usually.. Défaut d'une image dans laquelle certaines formes géométriques des objets ne sont pas les nôtres et sauraient. Not be substantially distorted ou de Dicocitations et ne sauraient les engager area distortion definition that... Arises from the pop‑up menu in the map in radio frequency applications is rarely as. Given parallel as those used on space vehicles, not be substantially distorted sur distortion dans dictionnaire! Êtres vivants, de déformer le... la distorsion entre les prix revient... Muscle, un ligament, de déformer le visage, etc features are depicted large... Frequency components to a signal to peak near the cut-off frequency, process. 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Electrical engineering it also shows the input of altering or disguising unconscious ideas or impulses so that they are to...
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