wiktionarypar LengthLength in its basic meaning is the long dimension of an object. Length may also refer to Length phonetics , in phonetics Vowel length Geminate consonant Arc lengthLength of a module , in abstract algebra Length of a polynomial Vector field length in vector calculus Line and length in cricket Horse length in equestrianism Nautical term Length overall disambig als L nge az Uzunluq d qiql dirm be x old ca Longitud desambiguaci de L nge es Longitud desambiguaci n nl Lengte nds L ng pl D ugo sv L ngd olika betydelser ... more details
disambig Length scale , or scale length a significant concept in physics used to define the order of magnitude of a system Scale height , or scale length a specific parameter in physics denoting the distance over which a quantity decreases by a factor of e Scale string instruments a measurement of the length of a musical instrument string ... more details
orphan date December 2009 Scantling Length is a distance slightly less than the waterline length of a ship, and generally less than the overall length of a ship. In the American Bureau of Shipping ABS Rules for Building and Classing Steel Vessels, it is defined as the distance on the Waterline summer load line from the fore side of the stem to the centerline of the rudder stock. Scantling length need not be less than 96 , nor more than 97 of the length of the summer load line. Most other Classification society classification societies use a similar definition of scantling length to define the general length of a ship . The scantling length is used by classification society classification societies for all calculations where the waterline length, overall length, displacement fluid displacement length, etc is called for. Naval architects wishing to comply with class rules would also use the scantling length. References http www.eagle.org absdownloads downloads senddownload.cfm?id 443 ABS Rules for Building and Classing Steel Vessels, Part 3, Hull Construction and Equipment, Rule 3.1.1 3.1, 2007. Category Naval architecture ... more details
Unreferenced stub auto yes date December 2009 The Kuhn length is a theoretical treatment, developed by Werner Kuhn , of a real polymer chain divided into math N math Kuhn segments with Kuhn length math b math , so that each Kuhn segments can be thought of as if they are freely jointed with each other. The contour length is math L Nb math . The construction is useful in that it allows complicated polymers to be simply modeled as either a random walk or a self avoiding walk . For worm like chain semiflexible chain , Kuhn length equals two times the persistence length . DEFAULTSORT Kuhn Length Category Polymer chemistry Category Polymer physics Polymer stub de Kuhn L nge ... more details
In abstract algebra , the length of a module mathematics module is a measure of the module s size . It is defined to be the length of the longest chain of submodule s and is a generalization of the concept of dimension linear algebra dimension for vector space s. Modules with finite length share many important properties with finite dimensional vector spaces. Other concepts used to count in ring and module ... to define. There are also various ideas of dimension that are useful. Finite length commutative ... math N 0 subsetneq N 1 subsetneq cdots subsetneq N n math we say that n is the length of the chain. The length of M is defined to be the largest length of any of its chains. If no such largest length exists, we say that M has infinite length. A ring R is said to have finite length as a ring if it has finite length as left R module. Examples The zero module is the only one with length 0. Modules with length 1 are precisely the simple module s. For every finite dimensional vector space viewed as a module over the base field mathematics field , the length and the dimension coincide. The length ... M has finite length if and only if it is both Artinian module Artinian and Noetherian module Noetherian . If M has finite length and N is a submodule of M , then N has finite length as well, and we have length N length M . Furthermore, if N is a proper submodule of M i.e. if it is unequal to M , then length N length M . If the modules M sub 1 sub and M sub 2 sub have finite length, then so does their direct sum of modules direct sum , and the length of the direct sum equals the sum of the lengths ... sequence of R modules. Then M has finite length if and only if L and N have finite length, and we have length M length L length N . This statement implies the two previous ones. A composition series ... such that math N i 1 N i mbox is simple for i 0, dots,n 1 math Every finite length module M has a composition series, and the length of every such composition series is equal to the length of M . References ... more details
Contour length is a term used in molecular physics . The contour length of a polymer chain a big molecule consisting of many similar smaller molecules is its length at maximum physically possible Extension metaphysics extension . ref http iupac.org goldbook C01308.pdf Contour length in polymers http www.iupac.org publications compendium index.html IUPAC Compendium of Chemical Terminology , 2nd Edition, 1997 ref References small references small Category Polymer physics ... more details
Context date September 2010 A characteristic length is an important dimension that defines the scale of a physical system. Often such a length is used as an input to a formula in order to predict some characteristics of the system. Examples Reynolds number Biot number External links http www.answers.com topic characteristic length Definition physics stub DEFAULTSORT Characteristic Length Category Physical constants de Charakteristische L nge nl Hydraulische diameter pt Comprimento caracter stico ... more details
Unreferenced stub auto yes date December 2009 In physics , length scale is a particular length or distance determined with the precision of one order or a few orders of magnitude. The concept of length scale is particularly important because physical phenomena of different length scales cannot affect each other and are said to decouple. The decoupling of different length scales makes it possible to have a self consistent theory that only describes the relevant length scales for a given problem. Scientific reductionism says that the physical laws on the shortest length scales can be used to derive the effective description at larger length scales. The idea that one can derive descriptions of physics at different length scales from one another can be quantified with the renormalization group . In quantum mechanics the length scale of a given phenomenon is related to its de Broglie wavelength ... that is being probed. In relativistic mechanics time and length scales are related by the speed of light . In relativistic quantum mechanics or relativistic quantum field theory , length scales .... Often in high energy physics natural units are used where length, time, energy and momentum scales are described in the same units usually with units of energy such as GeV . Length scales are usually ... units of length squared and is measured in barn unit barn s. The cross section of a given process is usually the square of the length scale. Examples The atomic length scale is math ell a sim 10 10 ... ell a sim 1 alpha m e math . The length scale for the strong interaction s or the one derived from ... are roughly comparable. This length scale is determined by the range of the Yukawa potential . The lifetimes of strongly interacting particles, such as the rho meson , are given by this length scale ... are several times the associated energy scale 500 MeV to 3000 MeV . The electroweak length scale is shorter ... which is roughly 100 GeV. This length scale would be the distance where a Yukawa force is mediated ... more details
In telecommunications , electrical length is the length of a transmission medium or antenna electronics antenna element expressed as the number of wavelength s of the Signalling telecommunication signal propagating in the medium. Electromagnetic waves propagate more slowly in a medium than in free space, so a wave in a medium will have a larger number of waves than a wave of the same frequency propagating over the same distance in free space. Alternatively put, the distance covered in free space by the same number of waves as are in the transmission medium will be greater, hence the transmission medium is said to have an electrical length greater than its physical length. The electrical length is most commonly expressed in units of the wavelength, , which is related to the velocity of wave propagation propagation , v and frequency, f by math lambda frac v f math A length may be stated as 2 or 3 or 0.5 etc. It is also sometimes expressed in radian s or degree angle degrees . A length of can be converted to radians by math theta 2 pi nu , math In both coaxial cable s and optical fibers, the velocity of wave propagation is approximately two thirds that of free space . Consequently, the wavelength will be approximately two thirds that in free space, and the electrical length approximately 1.5 times the physical length. In conducting cables, distributed electrical resistance resistances , capacitance s and inductance s impede the propagation of the signal. In an optical ..., affect the velocity of propagation of the signal. The electrical length of an antenna element is in general different from the physical length. This is especially true of elements on a printed board which will be affected by the dielectric medium on which they are printed. The electrical length ... lengthening artificially lengthen the electrical length. Elements can also be electrical ... Length Category Telecommunications de Elektrische L nge es Longitud el ctrica it Lunghezza elettrica ... more details
The persistence length is a basic mechanical property quantifying the stiffness of a long polymer . Informally, for pieces of the polymer that are shorter than the persistence length, the molecule behaves rather like a flexible elastic rod, while for pieces of the polymer that are much longer than the persistence length, the properties can only be described statistically, like a three dimensional random walk. Formally, the persistence length, P , is defined as the length over which correlations in the direction of the tangent are lost. In a more chemical based manner it can also be defined as the average sum of the projections of all bonds j i on bond i in an indefinitely long chain ref http openlibrary.org b OL5613440M Statistical mechanics of chain molecules Statistical Mechanics of Chain Molecules Paul J. Flory ref . Let us define the angle &theta between a vector that is tangent to the polymer at position 0 zero and a tangent vector at a distance L away from position 0. It can be shown that the expectation value of the cosine of the angle falls off exponentially with distance, math langle cos theta rangle e L P , math where P is the persistence length and the angled brackets denote the average over all starting positions. A piece of cooked spaghetti has a persistence length on the order of 1.5 cm ref http www.cs.duke.edu courses cps296.4 spring04 papers Seeman99.pdf DNA engineering and its application to nanotechnology Nadrian C. Seeman ref . Double helical DNA has a persistence length of about 50 nanometer s. In polymer science, persistence length is one half of the Kuhn length , the length of hypothetical segments that the chain can be considered as freely joined. The persistence length equals the average projection of the end to end vector on the tangent to the chain contour at a chain end in the limit of infinite chain length. ref http www.iupac.org goldbook ... Polymer Worm like chain Freely Jointed Chain Kuhn length Paul Flory References div class references ... more details
Unreferenced stub auto yes date December 2009 Length of stay LOS is a term commonly used to measure the duration of a single episode of hospitalization. Inpatient days are calculated by subtracting day of admission from day of discharge . However, persons entering and leaving a hospital on the same day have a length of stay of one. See hospital Terminology hospital . A popular statistic associated with length of stay is the average length of stay ALOS , calculated by dividing the sum of inpatient days by the number of patients admitted with the same Diagnosis related group DRG classification. A variation in the calculation of ALOS could be consider only length of stay during the period under analisis. The Centers for Medicare and Medicaid Services Medicare United States Payment for services prospective payment system for reimbursing hospital care promotes shorter LOS by paying the same amount for procedures, regardless of days spent in the hospital. DEFAULTSORT Length Of Stay Category Medical terms Med stub de Verweildauer ... more details
Orphan date February 2009 Unreferenced date April 2007 Short of a length sometimes referred to as back of a length or short of a good length is a term used in the sport of cricket . It describes a delivery from the Bowler cricket bowler that pitches short of the optimum length. Length in cricket defines where the ball pitches on the wicket ref http content www.cricinfo.com ci content story 239756.html ref . A good length ball is one that pitches at a distance that makes it difficult for the batsman to ascertain whether to play the ball on the front foot or back foot. A bouncer is a ball that passes the batsman above chest height. A short of a length delivery is one that pitches in the area between the bouncer and good length balls. This delivery can be dangerous for a batsman as it can bounce higher into the midriff. Also, the delivery can be extremely useful to a seam bowling seam bowler . Good exponents include Stephen Harmison and Glenn McGrath . References Reflist See also http en.wikipedia.org wiki List of cricket terms Category Cricket captaincy and tactics Category Cricket deliveries Category Cricket terminology cricket term stub ... more details
Reciprocal length or inverse length is a measurement used in several branches of science and mathematics . As the reciprocal of length , common units used for this measurement include the reciprocal metre or inverse metre m sup &minus 1 sup , the reciprocal centimetre or inverse centimetre cm sup &minus 1 sup , and, in optics , the dioptre . Quantities measured in reciprocal length include absorption coefficient or attenuation coefficient , in materials science curvature of a curve line , in mathematics gain , in laser physics magnitude vector magnitude of vector mathematics and physics vector s in reciprocal space , in crystallography more generally any spatial frequency e.g. in cycles per unit length optical power of a lens optics lens , in optics rotational constant of a rigid rotor , in quantum mechanics wavenumber , or magnitude of a wavevector , in spectroscopy Further reading Cite paper title A two parameter perturbation series for the reciprocal length of polymer chains and subchains lastname Barrett firstname A. J. journal Journal of Physics A Mathematical and General volume 16 number 10 date 11 July 1983 url http iopscience.iop.org 0305 4470 16 10 027?ejredirect migration DEFAULTSORT Reciprocal Length Category Length Category Physical quantities pt Comprimento rec proco uk ... more details
Image LOA LWL.svg thumb right 300px LOA Length Overall & LWL Waterline Length Image Ship length measurements.png thumb right 300px Detailed hull dimensions The Waterline length originally Load Waterline Length , abbreviated to LWL is a measurement of ship s and boat s. The term denotes the length of the vessel at the point where it sits in the water. It excludes the total length of the boat, such as features that are out of the water. Most boats rise outwards at the Bow ship bow and stern , so a boat may be quite a bit longer than its waterline length. In a ship with such raked stems, naturally the waterline length changes as the draft hull draft of the ship changes, therefore it is measured from a defined loaded condition. Length at the waterline is often abbreviated as lwl , w l , w.l. or wl . This measure is essential in determining a lot of properties of a vessel, such as how much water it displaces, where the bow and stern waves are, hull speed , amount of bottom paint needed, etc. References cite book last Hayler first William B. coauthors Keever, John M. title American Merchant Seaman s Manual year 2003 publisher Cornell Maritime Pr isbn 0 87033 549 9 cite book last Turpin first Edward A. authorlink coauthors McEwen, William A. title Merchant Marine Officers Handbook url edition 4th series date year 1980 month publisher Cornell Maritime Press location Centreville, MD isbn 0 87038 056 X pages chapter chapterurl See also Length overall Ship measurements Category Nautical terms Category Ship construction naval stub fr Longueur de flottaison is Vatnsl na nl Waterlijn no Lengde ved vannlinje sv Konstruktionsvattenlinje ... more details
Unreferenced date December 2009 In chemistry , the path length is defined as the distance that light UV Visible spectrum VIS travels through a sample in an analytical cell. Typically, a sample cell is made of quartz , glass, or a plastic rhombic cuvette with a volume typically ranging from 0.1 mL to 10 mL or larger used in a spectrophotometer . For the purposes of spectrophotometry i.e. when making calculations using the Beer Lambert law the path length is measured in centimeters rather than in meters . In a computer network , the path length is one of many possible router metrics used by a router to help determine the best Routing route among multiple routes to a destination. It consists of the end to end hop count from a source to a destination over the network. More simply, in general computer terminology, it can mean simply the total number of instructions executed from point A to point B in a program Instruction path length . In physics, the path length is defined as the total distance an object travels. Unlike displacement, which is the total distance an object travels from a starting point, path length is the total distance travelled, regardless of where it travelled. DEFAULTSORT Path Length Category Spectroscopy Category Computer networking Category Computing terminology ... more details
orphan date February 2010 unreferenced date August 2009 Expert subject Typography date February 2009 In Typography Line length is the width occupied by a block of typesetting typeset character computer text , measured in inches , Pica typography picas and Point typography points . A block of text or paragraph has a maximum line length that fits a determined design. Line length is determined by typographic parameters based on a formal grid and template with several goals in mind balance and function for fit and readability with a sensitivity to aesthetic style in typography . Typographers adjust line length to aid legibility or copy fit. Text can be flush left and Typographic alignment ragged right , flush right and ragged left , or Justification typesetting justified where all lines are of equal length. In a ragged right setting line lengths vary to create a ragged right edge of lines varying in length. Sometimes this can be visually satisfying. For justified and ragged right settings typographers can adjust line length to avoid unwanted hyphen s, rivers of white space, and orphaned words characters at the end of lines e.g. The , I , He , We . See also Characters per line References reflist Category Typography Category Typesetting typography stub ... more details
Feature length is film motion picture terminology referring to the length of a feature film . Five reel Motion picture terminology reel features became common practice in the film industry industry in 1915. During the silent film silent era a one reel short film short ran for an average of 10 minutes, and a two reeler usually a comedy for 20 minutes, thus a feature was around 50 minutes or more. According to the rules of the Academy of Motion Picture Arts and Sciences , a feature length motion picture must have a running time of more than 40 minutes to be eligible for an Academy Award . ref name oscars.org cite web url http www.oscars.org press pressreleases 2008 08.12.29.html title 281 Feature Films in Competitian for 2008 Oscar accessdate 2010 09 22 work Academy of Motion Picture Arts and Sciences publisher date ref The term may also be applied to non feature films with the minimum length, such as television movies and direct to video releases. Feature length can also be used to describe an episode of a TV series that has been extended to the length of a feature film. Such feature length episodes are usually television pilot series pilots , television special holiday specials or season finale s. See also List of motion picture terminology Short film References reflist Category Film and video terminology film term stub ... more details
In fluid mechanics , capillary length is a characteristic length scale for fluid subject to a body force from gravity and a surface force due to surface tension . The capillary length is defined as ref name Batchelor G.K. Batchelor, An Introduction To Fluid Dynamics , Cambridge University Press 1967 ref math lambda c sqrt frac gamma rho g math , where math g math is the acceleration due to gravity and math rho math is the density of the fluid, and math gamma math is the surface tension of the fluid fluid interface. For clean water at standard temperature and pressure, the capillary length is 2mm. A capillary surface that has a characteristic length smaller than the capillary length can be considered a low Bond number surface. A sessile drop whose largest dimension is smaller than the capillary length, for example, will take the shape of spherical cap , which is the solution to the Young Laplace equation with gravity completely absent. See also Surface tension Young Laplace equation Capillarity References references fluiddynamics stub Category Fluid dynamics fr Longueur capillaire no Kapillarlengde ... more details
unreferenced date February 2009 For the measurement of a ship s lengthlength overall The overall length of an ammunition Cartridge firearms cartridge is a measurement from the base of the brass Shell projectile shell Casing ammunition casing to the tip of the bullet , seated into the brass casing. Handloaded cartridges and commercially available cartridges for firearm s are normally created with a maximum length standardized by the Sporting Arms and Ammunition Manufacturers Institute SAAMI . A cartridge s overall length may be shorter than the maximum standard, equal to the standard, or sometimes even longer. The maximum overall length is dictated by the need to fit into a box magazine of standard manufacture. For example, the .223 Remington cartridge, when loaded for use in the AR 15 rifle or the military s M16 rifle M 16 rifle , has to fit into the removable box magazine for that rifle. This dictates that the cartridge s maximum overall length be no greater than 2.260 . However, for competition purposes during off hand and slow fire prone match stages, the .223 Remington is loaded one cartridge at a time into the rifle s receiver. This allows for the cartridge to be longer than the standardized 2.260 SAAMI maximum overall length. These cartridges can be safely loaded to a length that has the ogive portion of the bullet just touching the rifle s lands. Many competitive shooters will make these cartridges 0.005 less than the truly maximum allowable overall length, for the sake of safety. It is desirable for these single loaded cartridges to have as little bullet jump as possible before the bullet s ogive begins to be engraved by the rifle s lands. This minimized bullet jump increases the accuracy of the rifle, all else being equal. This practice of long loading a cartridge must be adjusted for each individual rifle , since there are variations from rifle to rifle as to how far down the barrel firearms barrel the rifling begins. firearms stub Category Ballistics fr Olympic ... more details
Multiple issues confusing February 2007 unreferenced September 2009 Roughness length math z 0 math is a parameter of some vertical wind profile equations that model the horizontal mean wind speed near the ground in the log wind profile , it is equivalent to the height at which the wind speed is zero. It is so named because it is typically related to the height of terrain roughness elements. Whilst it is not a physical length, it can be considered as a length scale a representation of the roughness of the surface. As an approximation, the roughness length is approximately one tenth of the height of the surface roughness elements. For example, short grass of height 0.01m has a roughness length of approximately 0.001m. Surfaces are rougher if they have more protrusions. Forests have much larger rougher lengths than tundra, for example. Roughness length is an important concept in urban meteorology as the building of tall structures, such as skyscrapers, has an effect on roughness length and wind patterns. References http amsglossary.allenpress.com glossary search?id aerodynamic roughness length1 Aerodynamic Roughness Length AMS Glossary http www.webmet.com met monitoring 663.html Surface Roughness Length http www das.uwyo.edu geerts cwx notes chap14 roughness.html Roughness http amsglossary.allenpress.com glossary search?id roughness length1 Roughness AMS Glossary See also Von K rm n constant Monin Obukhov length Wind profile power law Log wind profile Displacement height Category Air dispersion modeling Category Fluid dynamics climate stub ... more details
multiple issues expert November 2008 unreferenced November 2008 In mathematical field of geometric group theory , a length function is a function that assigns a number to each element of a group. Definition A length function L G &rarr R sup sup on a group mathematics group G is a function satisfying math begin align L e & 0, L g 1 & L g L g 1 g 2 & leq L g 1 L g 2 , quad forall g 1, g 2 in G. end align math Compare with the axioms for a Metric mathematics metric and a filtered algebra . Word metric main Word metric An important example of a length is the word metric given a presentation of a group by generators and relations, the length of an element is the length of the shortest word expressing it. Coxeter group s including the symmetric group have combinatorial important length functions, using the simple reflections as generators thus each simple reflection has length 1 . A longest element of a Coxeter group is both important and unique up to conjugation up to different choice of simple reflections . Properties A group with a length function does not form a filtered group , meaning that the sublevel set s math S i g mid ell g leq i math do not form subgroups in general. However, the group ring group algebra of a group with a length functions forms a filtered algebra the axiom math ell gh leq ell g ell h math corresponds to the filtration axiom. planetmath id 4365 title Length function DEFAULTSORT Length Function Category Group theory Category Geometric group theory ... more details
For the cosmological notion of proper distance Comoving distance In relativistic physics, proper length is an invariant physics invariant measure of the distance between two spacelike separated Spacetime Basic concepts event s, or of the length of a spacelike Path topology path within a spacetime . The measurement of lengths is more complicated in the theory of relativity than in classical mechanics . In classical mechanics, lengths are measured based on the assumption that the locations of all points involved are measured simultaneously. But in the theory of relativity, the notion of Relativity of simultaneity simultaneity is dependent on the observer. Proper lengths provide an invariant measure, whose value is the same for all observers. Proper length is analogous to proper time . The difference is that proper length is the invariant spacetime interval interval of a spacelike path or pair of spacelike separated events, while proper time is the invariant interval of a timelike path or pair of timelike separated events. Proper length between two events In special relativity , the proper length between two spacelike separated events is the distance between the two events, as measured in an inertial frame of reference in which the events are simultaneous. So if the two events occur at opposite ends of an object, the proper length of the object is the length of the object as measured ... length L is math L sqrt Delta x 2 Delta y 2 Delta z 2 c 2 Delta t 2 math , where t is the difference ... length of a path The above formula for the proper length between two events assumes that the spacetime ... length of a Path topology path in any spacetime, curved or flat. In a flat spacetime, the proper length between two events is the proper length of a straight path between the two events. In a curved ... two events, so the proper length of a straight path between two events would not uniquely define the proper length between the two events. Along an arbitrary spacelike path P , the proper length ... more details
A horse length , or simply length , is a unit of measurement that refers to the length of a horse from nose to tail, approximately 8 feet, ref http www.drf.com help help glossary.html Daily Racing Form Glossary of Horse Racing Terms ref It is commonly used in Thoroughbred horse racing , where it describes the distance between horses in a race. Horses may be described as winning by several lengths, as in the notable example of Secretariat horse Secretariat , who won the Belmont Stakes by 31 lengths convert 248 ft m More often winning distances are merely a fraction of a length, such as half a length. Distances smaller than that are similarly described in reference to the equine body with terms such as a neck , a head , a short head or a nose . These terms are used in other disciplines of equestrianism as well, particularly useful as a guide for riders in spacing animals apart when a number of them are all together in a riding arena , such as during group Riding academy riding instruction or at a horse show . Harness race finishing margins are typically measured in metres etc. See also Glossary of equestrian terms Glossary of Australian and New Zealand punting horse racing terms References reflist Category Horse racing Category Units of length ... more details
In phonetics , length or quantity is a distinctive feature feature of sounds that are distinctively longer than other sounds. There are vowel length long vowels as well as Consonant length long consonants the latter are often called geminates . Many languages do not have distinctive length. Among the languages that have distinctive length, there are only a few that have both distinctive vowel length and distinctive consonant length. It is more common that there is only one or that they depend on each other. The languages that distinguish between different lengths have usually long and short sounds. According to some linguists, Estonian language Estonian and some Sami languages have three phonemic meaning distinguishing lengths for consonants and vowels. Some Low German languages Low German Low Saxon languages Low Saxon varieties in the vincinity of Hamburg ref Stellmacher, 1973 ref and some Moselle Franconian ref Page 116 in Elmar Ternes lang de Einf hrung in die Phonologie. lang de Wissenschaftliche Buchgesellschaft , Darmstadt, 1987, ISBN 3 534 09576 6 ref and Ripuiarian Franconian varieties do, too. Strictly speaking, a pair of a long sound and a short sound should be identical except for their length. In certain languages, however, there are pairs of phoneme s that are traditionally considered to be long short pairs even though they differ not only in length, but also in quality, for instance English language English long e which is IPA i as in f ee t IPA fi t vs. short i which is IPA as in f i t IPA f t or German language German long e which is IPA e as in B ee t IPA be t garden bed vs. short e which is IPA as in B e tt IPA b t sleeping bed . Also, tonal contour may reinforce the length, as in Estonian, where the over long length is concomitant with a tonal variation resembling tonal stress marking. In non linear phonology , the feature of length is often not a feature of a specific sound segment, but rather of the whole syllable. See also Chroneme Extra short ... more details
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