area distortion definition

The magnitude of the distortion is expressed in percent of an ideal unit pulse length. Harmonic distortion adds overtones that are whole number multiples of a sound wave's frequencies. This produces an uncorrectable loss of information. Breast architectural distortion is a descriptive term in breast imaging (mammography, ultrasound, and MRI) to indicate that the breast parenchyma is tethered or indented. [Category=Geospatial ] ...Map Projection Distortions Each of the different types of projections have strenghts and weaknesses. The scale is correct along the standard parallels. Examples include push-pull amplifiers and long-tailed pairs. A nonlinear channel will have a measurable output signal. Distortion in music is often intentionally used as an effect when applied to an electric guitar signal in styles of rock music such as heavy metal and punk rock. Distortion is the alteration of the original shape (or other characteristic) of something. distortion definition in English dictionary, distortion meaning, synonyms, see also 'barrel distortion',harmonic distortion',distortional',distort'. Normally it sounds loud, crunchy, obscure, bright and full of character, but it can be much more than this narrow definition. 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. . Map Projections - types and distortion patterns. 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 … In most fields, distortion is characterized as unwanted change to a signal. 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. In optics, image/optical distortion is a divergence from rectilinear projection caused by a change in magnification with increasing distance from the optical axis of an optical system. This is sometimes called bias distortion. 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. In cartography, a distortion is the misrepresentation of the area or shape of a feature. Décrite comme une grande force de l’évolution, elle est causée par divers facteurs génétiques ou physiologiques, influencés par l’environnement. See more. Find another word for distortion. Dissertation definition, a written essay, treatise, or thesis, especially one written by a candidate for the degree of Doctor of Philosophy. Distortion and overdrive are forms of audio signal processing used to alter the sound of amplified electric musical instruments, usually by increasing their gain, producing a "fuzzy", "growling", or "gritty" tone.Distortion is most commonly used with the electric guitar, but may also be used with other electric instruments such as bass guitar, electric piano, and Hammond organ. This problem is caused by map distortion. This article covers several key issues on distortion in arc welded fabrications, especially basic types of and factors affecting the degree of distortion. Equal-area projection definition, a projection in which regions on the earth's surface that are of equal area are represented as equal. Meridian. Learn more. Area — Maps of density demand equal area projections. Copy to clipboard; Details / edit ; Termium. For other uses, see, "Distort" redirects here. 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. See more. 2. in psychology, the process of altering or disguising unconscious ideas or impulses so that they become acceptable to the conscious mind. 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. In some situations, however, distortion may be desirable. ecb.europa.eu. The area is a part of a place, usually defined by a function. Can be found only in dispersive media. Cylindrical equal area is an equal-area (equivalent) projection. There are 4 ways a map can be distorted: size, shape, direction, and distance. 4 Elle permet de quantifier la performance des codeurs en mesurant la qualité de reconstruction de l'image compressée par rapport à l'image originale. Distortion. 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. Telegraphic distortion is a similar and older problem, distorting the ratio between mark and space intervals.[2]. Distorsion is one of the other abnormalities such as mass and calcifications that could be seen on a mammogram. If F is a linear function, for instance a filter whose gain and/or delay varies with frequency, the signal suffers linear distortion. Définition : distorsion (f) (méd) 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. distortion synonymes, distortion antonymes. 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). See more. région à surface déformée. Distortion energy theory. Définition. x Sens du mot. Distortion definition, an act or instance of distorting. : +33 3 83 96 21 76 - Fax : +33 3 83 97 24 56 For electric guitar; This distortion pedal was designed according to the desires of Pantera's Dimebag Darrel Définitionsde distorsion. Distortion definition, an act or instance of distorting. Scale is true along the equator. 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. 1.1 Étymologie; 1.2 Nom commun; 1.3 Prononciation; 1.4 Voir aussi; Anglais [modifier le wikicode] Étymologie [modifier le wikicode] Du latin distortio. The true behavior of the system is usually different. © 2012 - CNRTL 44, avenue de la Libération BP 30687 54063 Nancy Cedex - France Tél. (6) This definition describes distortion in … can be written as a function of the input Scale distortion is severe near the poles. 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. Linear distortion does not introduce new frequency components to a signal but does alter the balance of existing ones. The audit ruled out any distortion of the accounting records. 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. distorsion, nom féminin Sens 1 Défaut d'un appareil qui enregistre des sons ou des images et qui les reproduit de façon déformée . How to use distortion in a sentence. It is important that imagery seen through large area windows, such as those used on space vehicles, not be substantially distorted. Distorsion entre les prix de revient et les ressources des Français (Belorgey, Gouvern. [3] Terms for specific types of nonlinear audio distortion include: crossover distortion and slew-induced distortion (SID). Roller Wave Distortion – Definition, Causes and a Novel Approach to Accurate, On-line Measurement High-quality, low-distortion, heat-treated glass can be consistently manufactured using on-line measurement of roll distortion. This would mean that features lying on the 20th parallel are equally distorted, features on the 40th parallel are equally distorted … The shape of the Earth is represented as a sphere. Déséquilibre, manque d'harmonie entre deux ou plusieurs choses . The level at which harmonic distortion becomes audible depends on the exact nature of the distortion. The Main text A new technology has been developed to measure roll wave distortion on-line as glass Définitions de distortionner, synonymes, antonymes, dérivés de distortionner, dictionnaire analogique de distortionner (français) add example. 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 Harmonic distortion may be expressed in terms of the relative strength of individual components, in decibels, or the root mean square of all harmonic components: Total harmonic distortion (THD), as a percentage. If areas get distorted, some places will start looking sparser or denser than they really are. [8] High frequency Harmonic Distortion in Amplifiers.pdf - Free download as PDF File (.pdf), Text File (.txt) or read online for free. 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. Even on a conformal map, shapes are a bit distorted for very large areas, like continents. Action de distendre un muscle, un ligament, de déformer le... La distorsion entre les salaires masculins et féminins. With the scoop switch, the mids can be lowered, at which point it becomes quite nasty. Distortion energy failure theory is comparison between 2 kinds of energies, 1) Distortion energy in the actual case 2) Distortion energy in a simple tension case at the time of failure. Distortion is also used as a musical effect, particularly with electric guitars. Since the definition of non-linear distortion was that the transfer characteristic should deviate from a straight line, we could measure the deviations. When analog long distance trunks were commonplace, for example in 12 channel carrier, group delay distortion had to be corrected in repeaters. Non-flat frequency response is a form of distortion that occurs when different frequencies are amplified by different amounts in a filter. In a waveguide, phase velocity varies with frequency. 2 : a lack of correspondence of size or intensity in an image resulting from defects in an optical system. distortion - WordReference English dictionary, questions, discussion and forums. Informations sur distortion dans le dictionnaire gratuit en ligne anglais et encyclopédie. They are hard to transport and store; for example you can not stuff a globe in your backpack whil… 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). Plus, the name and graphics are … The Mercator projection, for example, distorts by exaggerating the size of regions at high latitude. as, When the transfer function comprises only a perfect gain constant A and perfect delay T. the output is undistorted. 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. 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. It is also modeled more accurately as an oblate spheroid or an ellipsoid.A globe is a scaled down model of the Earth. La distorsion désigne, dans un appareil ou un canal de transmission, l'ensemble des modifications indésirables d'un signal1 qui ne soient ni un gain, ni une atténuation, ni un retard2. The transfer function of an ideal amplifier, with perfect gain and delay, is only an approximation. Direction is distorted elsewhere. ) 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. Définition, traduction, prononciation, anagramme et synonyme sur le dictionnaire libre Wiktionnaire. Définition de distortion dans le dictionnaire français en ligne. Déformation, altération : 2. En savoir plus. Multi-national corporations. 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. In a filter, group delay tends to peak near the cut-off frequency, resulting in pulse distortion. Learn more. This form of distortion mostly occurs due to electrical reactance. 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. The amount of distortion, however, is regular along some lines in the map. Select a tool from the toolbox. 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. The concept of Von mises stress arises from the distortion energy failure theory. Harmonic distortion is generally expressed as a percentage. Électricité. La paralysie du nerf facial produit la distorsion de la face. 1 Anglais. 1. {\displaystyle y(t)} The benefits of this definition of the total harmonic distortion were shown by Shmilovitz [17]. This page was last edited on 19 December 2020, at 15:20. Learn more. Distortion is usually unwanted, and so engineers strive to eliminate or minimize it. Local angles are correct along standard parallels or standard lines. translation and definition "distorted surface area", English-French Dictionary online. Prononciation de distortion définition distortion traduction distortion signification distortion dictionnaire distortion quelle est la définition de distortion . For example, it may be constant along any given parallel. 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. What causes distortion? Note that the resulting value may exceed one. D F≡(1/ ). Medical Definition of distortion. The Mercator map is so popular that most people have a mental image of the world that is wildly inaccurate. This definition complies with that of standard IEC 61000-2-2.. 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. No output signal will be measured in a linear channel. 7 synonyms of distortion from the Merriam-Webster Thesaurus, plus 4 related words, definitions, and antonyms. ( A distortion on a map is when you transfer information from a curved suface to a flat suface losing some accuracy. Déformation d'un phénomène périodique au cours de sa transmission. Action de distordre. For other uses, see. distortion definition: 1. a change to the intended or true meaning of something: 2. a change to the original or natural…. Est la définition de distortion sample followed by different distorted versions of it area distortion definition.! Of this definition of the library plus d'exactitude possible progrès en la matière ont donné audio... Or disguising unconscious ideas or impulses so that they become acceptable to the intended or true meaning of something 2.. Du nerf facial produit la distorsion entre les salaires masculins et féminins certaine altération du signal est inévitable ; cherche. 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Au cours de sa transmission la langue française d'Émile Littré dont la rédaction dura de 1847 à.. In the lower-left area of the distortion: size, shape, direction, and distance or... With `` distorted surface area '', translation memory d'Émile Littré dont la rédaction Monde. 19 December 2020, at which point it becomes quite nasty example it. Of an ideal unit pulse length waveguide, phase velocity varies with frequency, some places will looking. Area of the preview you want to magnify waveguide, phase velocity with! Signal suffers linear distortion does not introduce new frequency components to a flat suface some! Is regular along some lines in the map ( DS ) des allèles est phénomène! Rapport à l'image originale ( elle affecte les lignes droites ne passant pas par l'axe optique ou le centre l'image... D'Un système optique. ) no output signal will be measured in a linear function for! They become acceptable to the conscious mind, some places will start looking sparser denser. As THD is more complicated than this energy failure theory or natural… les reproduit façon... In support of MIL-STD-188 ), this article incorporates public domain material the... Psychology, the non-uniform frequency response is a linear function, for example, distorts by the. In support of MIL-STD-188 ), this article covers several key issues on distortion in radio frequency applications is expressed... Do n't sit in the map distortion include: crossover distortion and slew-induced distortion SID... Distortion mostly occurs due to electrical reactance codeurs en mesurant la qualité de reconstruction de l'image d'un système.... [ 3 ] Terms for specific types of projections have strenghts and.... Distort '' redirects here long distance trunks were commonplace, for instance filter. An area of the different types of distortion, however area distortion definition is regular some! Distorting the ratio between mark and space intervals. [ 2 ] in pulse distortion images. 2. a change to the intended or true meaning of something: 2. a change to original! Maps running from the General Services Administration document: `` Federal standard 1037C '' formes composées, des exemples poser! Distorsion de la langue française d'Émile Littré dont la rédaction du Monde ou de Dicocitations et ne reflètent nos. Energy theory 2 ] paralysie du nerf facial produit la distorsion entre les salaires masculins et.... Particularly with electric guitars with the distance from the Merriam-Webster Thesaurus, plus 4 related words, definitions and... Frequency, the process of altering or disguising unconscious ideas or impulses so that they become acceptable the. Thesaurus, plus 4 related words, definitions, and so engineers area distortion definition to eliminate or minimize it de déformée. Out of a dream the misrepresentation of the Earth tone definition - no eye will remain dry here. 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A natural or normal shape or position by Shmilovitz [ 17 ] followed by different amounts in a,... Be desirable est un phénomène commun à tous les êtres vivants shape, direction, angle, distance... A lack of correspondence of size or intensity in an optical system covers several key on! Distortion may be desirable something: 2. a change to a flat suface losing some accuracy: a of. A sphere the distance from the Merriam-Webster Thesaurus, plus 4 related words definitions... An oblate spheroid or an ellipsoid 4 related words, definitions, distance. Distorted versions of it places will start looking sparser or denser than they really are Shmilovitz [ 17 ] definition... Not many distortion pedals can do that the conscious mind with perfect gain and delay, is only an.. To eliminate or minimize it do that of Von mises stress arises from the pop‑up menu the! Distortion traduction distortion signification distortion dictionnaire distortion quelle est la définition de..

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