has a wavefunction , which is shown with real part in blue and imaginary part in red. The trajectories ... Fundamental concepts A wavefunction or wavefunction is a probability amplitude in quantum mechanics ... of quantum mechanics the Schr dinger equation describe how the wavefunction evolves over time. The wavefunction behaves qualitatively like other wave s, like water wave s or waves on a string ... wavefunction , and gives rise to wave particle duality . The most common symbols for a wavefunction ... can be determined by dimensional analysis . The wavefunction is absolutely central to quantum mechanics ... in an attempt to solve the Many body problem N body wavefunction, and developed the self consistency ... encounter an equation for which the wavefunction satisfied Relativity relativistic energy conservation .... Functions can easily describe wave like motion, using periodic function s, and Fourier analysis can ..., the entire wavefunction is treated as a single abstract vector math psi mathbf r leftrightarrow psi ... to create every possible function. Also, it is a Hilbert space , because the inner product of wave functions ... vector can be expressed in this basis. This explains the relationship between a wavefunction in position space and a wavefunction in momentum space, and suggests that there are other possibilities ... numbers math c i langle phi i psi rangle. math This wavefunction is known as a discrete ... everywhere satisfy the relevant Normalizable wavefunction normalization condition , so that the particle ... on how quantum mechanical operators act on the wavefunction, commutation of operators, and expectation ... space The particle also has a wavefunction in momentum space math Phi p,t math where p is the momentum ... width 520 footer Interpretation of wavefunction for one spin 0 particle in one dimension. The wavefunctions ... Example of normalization A particle is restricted to a 1D region between x 0 and x L its wavefunction ... math and is zero elsewhere. To normalize the wavefunction we need to find the value of the arbitrary ... more details
In mathematics, a Coulomb wavefunction is a solution of the Coulomb wave equation , named after Charles Augustin de Coulomb . They are used to describe the behavior of charged particles in a Coulomb potential and can be written in terms of confluent hypergeometric function s or Whittaker function s of imaginary argument. Coulomb wave equation The Coulomb wave equation is math frac d 2w d rho 2 left 1 frac 2 eta rho frac L L 1 rho 2 right w 0 math where L is usually a non negative integer. The solutions are called Coulomb wave functions. Putting x 2 i changes the Coulomb wave equation into the Whittaker equation, so Coulomb wave functions can be expressed in terms of Whittaker functions with imaginary arguments. Two special solutions called the regular and irregular Coulomb wave functions are denoted by F sub L sub , and G sub L sub , , and defined in terms of the confluent hypergeometric function by math F L eta, rho frac 2 Le pi eta 2 Gamma L 1 i eta Gamma 2L 2 rho L 1 e i rho M L 1 i eta,2L 2,2i rho math References AS ref 14 538 citation first Harry last Bateman title Higher transcendental functions volume 1 year 1953 publisher McGraw Hill url http apps.nrbook.com bateman Vol1.pdf . Citation last1 Jaeger first1 J. C. last2 Hulme first2 H. R. title The Internal Conversion of Rays with the Production of Electrons and Positrons jstor 96298 publisher The Royal Society year 1935 journal Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences issn 0080 4630 volume 148 issue 865 pages 708 728 Citation last1 Slater first1 Lucy Joan title Confluent hypergeometric functions publisher Cambridge University Press mr 0107026 year 1960 . dlmf first I. J. last Thompson id 33 title Coulomb Functions Category Special hypergeometric functions ... more details
Unreferenced stub auto yes date December 2009 In quantum field theory , wavefunction renormalization is a rescaling, or renormalization , of quantum fields to take into account the effects of interactions. For a noninteracting or free field , the field operator creates or annihilates a single particle with probability 1. Once interactions are included, however, this probability is modified in general to Z math neq math 1. This shows up when one calculates the propagator beyond leading order e.g., for a scalar field, math frac i p 2 m 0 2 i varepsilon rightarrow frac i Z p 2 m 2 i varepsilon math The shift of the mass from m sub 0 sub to m constitutes the mass renormalization . One possible wavefunction renormalization, which happens to be scale independent, is to rescale the fields so that the Lehmann weight Z in the formula above of their quanta is 1. It s trickier to define it for unstable particles . For the purposes of studying renormalization group flow s, if the coefficient of the kinetic term in the action at the scale is Z , then the field is rescaled by math sqrt Z math . A scale dependent wavefunction renormalization for a field means that that field has an anomalous scaling dimension . See also Renormalization DEFAULTSORT WaveFunction Renormalization Category Quantum field theory Category Renormalization group Quantum stub ... more details
quantum mechanics Main wavefunction In quantum mechanics , wavefunction collapse also called collapse of the state vector or reduction of the wave packet is the phenomenon in which a wavefunction initially ... of wavefunction collapse has always been debatable, i.e., whether it is a fundamental physical phenomenon ... WaveFunction Collapse in Quantum Mechanics work Topics in Theoretical Physics accessdate 2010 10 ... what the wavefunction means. Mathematical background For an explanation of the notation used Bra ket ... is described by a wavefunction in turn an element of a projective space projective Hilbert space ... are assumed to be Normalizable wavefunction normalized the total probability of measuring all ... math scriptstyle phi i rangle math , the state of the wavefunction changes from the full ... math . All the other terms in the expansion of the wavefunction have vanished into nothing, hence ... psi phi rang 2 math . Quantum leaps and wavefunction collapse are therefore merely two sides of the same ... postulated that there were two processes of wavefunction change The probability probabilistic ... theory , which is process 2 mentioned above. However, when the wavefunction collapses process 1 , from ... Grundlagen has attempted to create consistency of the two processes of wavefunction change. He was able to prove the possibility of a quantum mechanical measurement scheme consistent with wavefunction ... Kluwer Academic Publishers isbn . ref The existence of the wavefunction collapse is required in the Copenhagen ... of phenomena described by the expression wavefunction collapse is a fundamental problem in the interpretation ... of the wavefunction corresponds to a non unitary quantum operation. The significance ascribed to the wave ... such as the Copenhagen Interpretation . If the wavefunction merely encodes an observer s knowledge of the universe then the wavefunction collapse corresponds to the receipt of new information. This is somewhat analogous to the situation in classical physics, except that the classical wavefunction ... more details
Spheroidal wave functions are solutions of the Helmholtz equation that are found by writing the equation in spheroidal coordinates and applying the technique of separation of variables , just like the use of spherical coordinates lead to spherical harmonics . They are called oblate spheroidal wave functions if oblate spheroidal coordinates are used and prolate spheroidal wave functions if prolate spheroidal coordinates are used. ref name Flammer1957 cite book author Flammer, C. year 1957 title Spheroidal wave functions publisher Stanford University Press Stanford, Calif isbn ref If instead of the Helmholtz equation, the Laplace equation is solved in spheroidal coordinates using the method of separation of variables, the spheroidal wave functions reduce to the spheroidal harmonics. With oblate spheroidal coordinates, the solutions are called oblate harmonics and with prolate spheroidal coordinates, prolate harmonics . Both type of spheroidal harmonics are expressible in terms of Legendre functions . See also Oblate spheroidal coordinates , especially the section Oblate spheroidal coordinates Oblate spheroidal harmonics Oblate spheroidal harmonics , for a more extensive discussion. References reflist C. Niven On the Conduction of Heat in Ellipsoids of Revolution. Philosophical transactions of the Royal Society of London, v. 171 p. 117 1880 M. Abramowitz and I. Stegun, Handbook of Mathematical function US Gov. Printing Office, Washington DC, 1964 dlmf id 30 first H. last Volkmer mathapplied stub Category Partial differential equations Category Special functions ... more details
that vt increases. That is, the wave shaped like the function F will move in the positive x direction ... transform of A k1 is a function exhibiting a sharp peak in a region of wave vectors k surrounding ... s frequency. Wavelength can be a useful concept even if the wave is not periodic function periodic ... Scientific ref The sine function is periodic, so the sine wave or sinusoid has a wavelength in space ... and X rays . Quantum mechanical waves Main Schr dinger equation See also Wavefunction The Schr dinger ... of this equation are wavefunction s which can be used to describe the probability density of a particle ... such a particle traveling in the k direction is expressed by the wavefunction math psi mathbf r ... function of a particle. In a wave packet, the wavelength of the particle is not precise, and the local wavelength deviates on either side of the main wavelength value. In representing the wavefunction of a localized particle, the wave packet is often taken to have a Gaussian function Gaussian shape ...about waves in the scientific sense other uses of wave or waves Wave disambiguation File 2006 01 14 Surface waves.jpg thumb right 300px Surface wave s in water In physics , a wave is a disturbance or oscillation that travels through spacetime , accompanied by a transfer of energy . Wave motion transfers ... around almost fixed locations. Waves are described by a wave equation which sets out how ... of wave. There are two main types of waves. Mechanical wave s propagate through a medium, and the substance ... . This keeps the molecules from continuing to travel in the direction of the wave. The second type of wave, electromagnetic wave s, do not require a medium. Instead, they consist of periodic oscillations ... a vacuum . These types of waves vary in wavelength, and include radio wave s, infrared radiation , visible light , ultraviolet radiation , X ray s, and gamma ray s. A wave can be transverse wave transverse or longitudinal wave longitudinal depending on the direction of its oscillation. Transverse ... more details
The Wave may refer to The Wave TV special The Wave TV special , a made for TV movie based on the experiment The Wave novel The Wave novel , a 1981 young adult novel by Todd Strasser The Wave 2008 film The Wave 2008 film , a German film adapted from the novel The Wave building , a residential skyscraper on the Gold Coast, Australia The Wave, Arizona , a sandstone formation The Wave , English title of Redes film Redes , a Mexican film The Wave of Long Island , a newspaper The Wave in Vejle , a residential building complex in Vejle, Denmark The Great Wave off Kanagawa , a woodblock print by 19th century Japanese artist Hokusai The Third Wave , a 1967 high school experiment inspired by Nazism Wave audience , an occurrence at sporting events A painting by William Adolphe Bouguereau A type of caster board Radio stations The Wave 96.4 FM , in Swansea, Wales CHWV FM , in Saint John, New Brunswick CJLS FM , in Yarmouth, Nova Scotia CKWV FM , in Nanaimo, British Columbia WNWV , in Cleveland, Ohio KTWV , Smooth Jazz staton in Los Angeles CIWV FM , Canadian Smooth Jazz Station The Wave German radio , radio station of RTL Group from Berlin, Germany See also Wave disambiguation The Waves , a novel Stop Climate Chaos The Wave The Wave protest , a Climate Change protest in London and Glasgow held on the 5th December 2009 disambig de The Wave ja The wave ... more details
The term T wave may refer to In medicine T wave , a portion of the recording of a heartbeat in an electrocardiogram In physics Terahertz radiation , electromagnetic radiation in the microwave band. disambig ... more details
Orphan date October 2010 cleanup date October 2010 File WAVe.png thumb WAVe logo WAVe stands for Web Analysis of the Variome is a next generation web based bioinformatics tool for the Human Variome Project human variome research domain. Availability WAVe is available for public usage at http bioinformatics.ua.pt WAVe and enables gene centric navigation over miscellaneous resources in a modern and agile web interface. Funding WAVe is being developed for the GEN2PHEN European GEN2PHEN Project by the http bioinformatics.ua.pt UA.PT Bioinformatics and Computational Biology group at the Aveiro University University of Aveiro . Architecture WAVe is based on a lightweight integration architecture ref http issuu.com pedrolopes docs linkintegrator ref and uses Arabella web crawler ref http issuu.com pedrolopes docs arabella ref combined with a Java based data gathering engine to aggregate multiple resources in a centralized database. References Reflist External links http bioinformatics.ua.pt WAVeWAVe Categories Category Bioinformatics Bioinformatics stub ... more details
for the lowest energy electronic wavefunction in atomic physics atomic orbital for the S wave on an electrocardiogram ... Onde cisaillement impulsion 1d 30 petit.gif thumb 305px Plane shear wave Image Ondes cisaillement 2d 20 petit.gif thumb 305px Propagation of a spherical S wave in a 2d grid empirical model A type of Linear elasticity Elastic wave elastic wave , the S wave , secondary wave , or shear wave sometimes called an elastic S wave is one of the two main types of elastic body wave seismology body wave s, so named because they move through the body of an object, unlike surface wave s. The S wave moves as a shear or transverse wave , so motion is perpendicular to the direction of wave propagation S waves are like waves in a rope, as opposed to waves moving through a slinky , the P wave . The wave moves ... Image Earthquake wave shadow zone.svg thumb 150px The shadow zone of a P wave . S waves don t penetrate ... seismogram , after the compressional wave compressional primary wave, or P wave, because S waves travel slower in rock. Unlike the P wave, the S wave cannot travel through the molten outer core of the Earth ... appear in the solid inner core when a P wave strikes the boundary of molten and solid cores, called ... plane, they are classified as SV waves. When an S or P wave strikes an interface at an angle other than ... solid media, mode conversion results. If a P wave strikes an interface, four propagation modes may result reflected and transmitted P and reflected and transmitted SV. Similarly, if an SV wave strikes ... are described by the Zoeppritz equations , which in turn are solutions to the wave equation ... s 2nd law in this situation gives the homogeneous equation of motion for seismic wave propagation math ... gives the seismic wave equation in homogeneous media math rho ddot boldsymbol u left lambda ... 2 frac partial 2 nabla times boldsymbol u partial t 2 0 math which is simply the wave equation applied ... S wave propagation. Taking the divergence of seismic wave equation in homogeneous media instead ... more details
Merge from No Wave Cinema discuss Talk No Wave Merger proposal date December 2011 Multiple issues refimprove ... No Wave bgcolor crimson color white stylistic origins Punk rock br Avant garde music Avant garde ref ... of punk rock New Wave music New wave Post punk No Wave was a short lived but influential underground ... 1970s in New York City . ref name romanowski The term No Wave is in part satirical word play rejecting the commercial elements of the then popular New Wave music New Wave genre . The term originates from a 1981 show, New York New Wave , curated by artist Diego Cortez. ref Alison Pearlman, Unpackaging ... March 2010 No Wave is not a clearly definable musical genre with consistent features. Various groups ... music experimental . There are, however, some elements common to most No Wave music ... all books no wave.html No Wave , with a foreword by Weasel Walter London Black Dog Publishing, 2007 .... ref No Wave had a notable influence on noise and Industrial music industrial bands which followed ... in reference to a bunch of nihilists, I do feel fond of the No Wave people. James Chance s music actually ... No Wave inspired the Speed Trials noise rock series organized by Live Skull members in May 1983 at White ... ref Other No Wave musicians Do not add musicians here who are discussed previously in the article. In addition ... No Wave ref name WW archive cite web last Walter first Weasel title New York No Wave Archive url http nowave.pair.com no wave nycnowave index.html work New York No Wave Archive accessdate 27 January ... The Static Ut band Ut Von LMO Y Pants div col end No Wave Cinema No Wave Cinema was an underground ... to the Cinema of Transgression and work by Nick Zedd and Richard Kern . No Wave visual artists ... David Wojnarowicz div col end No Wave Afterlife In a foreword to the book No Wave , Weasel Walter ... movement known as No Wave were found in many other archetypes before and just as many afterwards, but for a few ... hot focus. ref name Masters Masters, Marc. 2007 No Wave London, UK Black Dog Publishing ref blockquote ... more details
cleanup linkrot date August 2011 Infobox album See Wikipedia WikiProject Albums Name Wave on Wave Type studio Longtype Artist Pat Green Cover Pat Green Wave on Wave.jpg Released Start date 2003 07 15 Recorded 2002 3 at Pedernales Studio, Spicewood, Texas Wave on Wave recorded at Cartee Day Studio, Nashville, Tennessee ref name Wave Genre Country music Country Length 54 02 Label Universal Records Universal ... , Don Gehman , Doug Morris Last album Three Days album Three Days br 2001 This album Wave on Wave br 2003 Next album Lucky Ones Pat Green album Lucky Ones br 2004 Misc Singles Name Wave on Wave Type studio Single 1 Wave on Wave song Wave on Wave Single 1 date May 26, 2003 Single 2 Guy Like Me Single ... class album id r649332 pure url yes title Wave on Wave review last Jurek first Thom work Allmusic accessdate July 4, 2011 ref noprose yes Wave on Wave is the seventh studio album released by American ... charting single, peaking at No. 3 on the country charts, while A Guy Like Me reached No. 31. Wave on Wave ... guitar line from Wave on Wave closely resembles the guitar line from Mike and the Mechanics The Living ... Wilkins length2 4 03 title3 Wrapped writer3 Green, Wilkins length3 3 28 title4 Wave on Wave song Wave on Wave writer4 Green, Neuhauser, Justin Pollard length4 4 04 title5 California writer5 Green length5 ... As listed in liner notes. ref name Wave cite album notes title Wave on Wave bandname Pat Green year ... guitar Special guest appearances John Carroll electric guitar on Elvis Chad Cromwell drums on Wave on Wave Mike Daly steel guitar , dobro John Jarvis piano on Wave on Wave Sasha Ostrovsky steel guitar on Wave on Wave Waylon Payne acoustic guitar on Elvis , harmony vocals Brent Rowan electric guitar on Wave on Wave Walt Wilkins acoustic guitar on Wrapped , harmony vocals Curtis Wright background vocals on Wave on Wave Chart performance Album class wikitable Chart 2003 Peak br position U.S. Billboard ... size smaller width 45 Hot Country Songs US Country width 45 Billboard Hot 100 US 2003 align left Wave ... more details
acute myocardial infarction is sometimes the hyperacute T wave , which can be distinguished from ... left bundle branch block is present, the T wave should be deflected opposite the terminal deflection of the QRS complex. This is known as appropriate T wave discordance . Frequency of inverted T waves ... more details
wiktionary functionFunction may refer to Diatonic function , a term in music theory Function E 40 song , a 2012 song by American rapper E 40 featuring YG rapper YG , iAmSu & Problem Function biology , explaining why a feature survived selection Function computer science , or subroutine, a portion of code within a larger program, performs a specific task Function engineering , related to the selected property of a system Function language , in linguistics, a way of achieving an aim using language Function mathematics , an abstract entity that associates an input to a corresponding output according to some rule Function model , a structured representation of the functions, activities or processes Function object , or functor or functionoid, a concept of object oriented programming Function Drinks , a beverage company based in Redondo Beach, California. An organised event such as a party or meeting See also Functionalism disambiguation Function hall Functional disambiguation Functionality in polymer chemistry see Structural unit Functor disambiguation bg bs Funkcija vor ca Funci desambiguaci cs Funkce da Funktion de Funktion et Funktsioon es Funci n eo Funkcio eu Funtzio argipena fr Fonction ko id Fungsi it Funzione lt Funkcija lmo Funziun nl Functie ja no Funksjon nn Funksjon pl Funkcja ujednoznacznienie pt Fun o desambigua o ro Func ie dezambiguizare ru simple Function sk Funkcia sl Funkcija razlo itev sr sh Funkcija razvrstavanje sv Funktion olika betydelser th uk zh ... more details
In mathematics, S function may refer to sigmoid function Schur polynomials In physics, it may refer to Action physics action functional mathdab Short pages monitor This long comment was added to the page to prevent it from being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Long comment. Please do not remove the monitor template without removing the comment as well. ... more details
Image VEST Core4 LowLevel.png thumbnail 320px right VEST 4 T function followed by a transposition layer In cryptography , a T function is a bijection bijective mapping that updates every bit of the state computer science state in a way that can be described as math x i x i f x 0, cdots, x i 1 math , or in simple words an update function in which each bit of the state is updated by a linear combination of the same bit and a function of a subset of its less significant bits. If every single less significant bit is included in the update of every bit in the state, such a T function is called triangular . Thanks to their bijectivity no collisions, therefore no entropy loss regardless of the used Boolean function s and regardless of the selection of inputs as long as they all come from one side of the output bit , T functions are now widely used in cryptography to construct block cipher s, stream cipher s, PRNG s and cryptographic hash function hash functions . T functions were first proposed in 2002 by Alexander Klimov A. Klimov and Adi Shamir A. Shamir in their paper A New Class of Invertible Mappings . Ciphers such as TSC 1 , TSC 3 , TSC 4 , ABC stream cipher ABC , Mir 1 and VEST are built with different types of T functions. Because arithmetic operation s such as addition , subtraction and multiplication are also T functions triangular T functions , software efficient word based T functions can be constructed by combining bitwise logic with arithmetic operations. Another important property of T functions based on arithmetic operations is predictability of their period mathematics period , which is highly attractive to cryptographers. Although triangular T functions are naturally vulnerable to guess and determine attacks, well chosen bitwise transposition mathematics transposition ... bit. Subsequent transposition of the output bits and iteration of the T function also do not affect ... and losing the T function bias of depending only on the less significant bits of the state. References ... more details
surface of wave propagation Mathematics Bloch wave , a type of particle wavefunction Electromagnetic wave equation , describes electromagnetic wave propagation Evanescent wave , a mathematical wave type Longitudinal wave , mathematical wave type pp wave spacetime , a set of exact solutions to Einstein s field equation Relativistic wave equations , wave equations that consider special relativity Sine wave , mathematical graph of a sine function Square wave , a mathematical waveform Standing wave , mathematical wave type Standing wave ratio , telecommunications Transverse wave , mathematical wave type Wave equation , general Wavefunction , quantum mechanics Wavefunction renormalization , quantum mechanics Wave period , parameter for describing a wave Wavelength , parameter for describing a wave Wavenumber , parameter for describing a wave Phase waves , mathematical wave type Medicine Alpha wave , a brain wave Cannon A waves , a cardiac wave Gamma wave , a brain wave PGO waves , a brain ...wiktionarypar wave TOCright A wave is a disturbance that propagates through space and time, transferring energy. Wave or waves may also refer to Physical science Airy wave theory , fluid dynamics Alfv n wave , particle science Capillary wave , fluid dynamics Cnoidal wave , fluid dynamics Creeping wave , a wave diffracted around a sphere Faraday wave , a type of wave in liquids Gravitational wave , relativity theory Internal wave , wave within a fluid medium Lamb waves , solid materials Matter wave , quantum mechanics Mechanical wave , media transmission Pilot wave , quantum mechanics Shock wave , aerodynamics Spin density wave , solid materials Spin wave , magnetism Terrestrial stationary waves , electrical transmission Tollmien Schlichting wave , fluid dynamics Trojan wave packet , particle science Wave Dragon , a wave energy converter Wave Motion journal , a scientific journal Wave packet , quantum mechanics Wave particle duality , particle science Waves in plasmas , particle science ... more details
In mathematics , Bloch function may refer to a periodic function which appears in the solution of the Schr dinger s equation with periodic potential see Bloch wave . an analytic function in the unit disc which is an element of the Bloch space . mathdab ... more details
A triangle wave is a non sinusoidal waveform named for its Triangle triangular shape. It is a periodic function periodic , piecewise linear function piecewise linear , continuous function continuous function of a real variable real function . Image triangle td and fd.png thumb 400px A bandlimited triangle wave pictured in the time domain top and frequency domain bottom . The fundamental is at 220 Hz A3 . Like a square wave , the triangle wave contains only odd harmonic s. However, the higher harmonics roll off roll off much faster than in a square wave proportional to the inverse square of the harmonic number as opposed to just the inverse . It is possible to approximate a triangle wave with additive synthesis by adding odd harmonics of the fundamental, multiplying every 4n 1 th harmonic by 1 ... wave math begin align x mathrm triangle t & frac 8 pi 2 sum k 0 infty 1 k , frac sin left ... triangle.gif thumb 350px right Animation of the additive synthesis of a triangle wave with an increasing .... Listen filename 220 Hz anti aliased triangle wave.ogg title Triangle wave sound sample description 5 seconds of anti aliasing anti aliased triangle wave at 220 Hz format Ogg Another definition of the triangle wave, with range from 1 to 1 and period 2 a is math x t frac 2 a left t a left lfloor ... math scriptstyle lfloor n rfloor math represent the Floor and ceiling functions floor function of n . Also, the triangle wave can be the absolute value of the sawtooth wave br math x t left 2 left t over a left lfloor t over a 1 over 2 right rfloor right right math The triangle wave can also be expressed as the integral of the square wave br math int sgn sin x ,dx , math See also Image Waveforms.svg thumb 400px sine wave Sine , square wave square , triangle, and sawtooth wave sawtooth waveforms Triangle function Sine wave Sawtooth wave Square waveWave s Sound Zigzag References MathWorld urlname FourierSeriesTriangleWave title Fourier Series Triangle Wave DEFAULTSORT Triangle Wave Category ... more details
D wave may refer to D Wave Systems , a corporation D wave, an electronic wavefunction of an atomic orbital dab Short pages monitor This long comment was added to the page to prevent it being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Longcomment. Please do not remove the monitor template without removing the comment as well. ... more details
Unreferenced date December 2009 According to the principle of diffraction , when a wave front passes an obstruction, it spreads out into the shadowed space. A creeping wave , in electromagnetism or acoustics is the wave that is diffracted around the shadowed surface of a smooth body such as a sphere . Creeping waves greatly extend the ground wavewave propagation propagation of long wavelength low frequency radio. They also cause both of a person s ears to hear a sound , rather than only the ear on the side of the head facing the origin of the sound . In radar ranging, the creeping wave return appears to come from behind the target. Vladimir Fock made important contributions to the understanding and calculation of creeping waves. They are described by Airy function s. DEFAULTSORT Creeping Wave Category Electromagnetic radiation Category Acoustics Category Radio terminology fr Onde rampante ... more details
about a pulse wave form a heart beat Pulse about a rectangular pulse train a Dirac pulse train Sampling function Otheruses Pulse disambiguation Unreferenced date December 2009 File Dutycycle.svg thumb 350px The shape of the pulse wave is defined by its duty cycle D, which is the ratio between the pulse duration math tau math and the period T A pulse wave or pulse train is a kind of non sinusoidal waveform that is similar to a square wave , but does not have the symmetrical shape associated with a perfect square wave. It is a term common to Analog synthesizer synthesizer programming, and is a typical waveform available on many synths. The exact shape of the wave is determined by the duty cycle of the oscillator . In many synthesizers, the duty cycle can be modulated sometimes called pulse width modulation for a more dynamic timbre. The pulse wave is also known as the rectangular wave , the Periodic function periodic version of the rectangular function . The Fourier series expansion for a rectangular pulse wave with period math T and pulse time math is math f t frac tau T sum n 1 infty frac 2 n pi sin frac pi n tau T cos frac 2 pi n T t math Note that, for symmetry, the starting time math t 0 in this expansion is half way through the first pulse. The phase can be offset to match the accompanying graph by replacing math t with math t 2 . See also Rectangular function Sampling function Pulse width modulation Sine wave Triangle wave Square wave DEFAULTSORT Pulse Wave Category Waves Electronics stub ... more details
Image Bow wave 1.jpg thumb Bow wave of a canal barge A bow wave is the wave that forms at the bow ship bow of a ship when it moves through the water. ref name Dictionary cite web last Dictionary title Bow Wave url http dictionary.reference.com browse bow wave publisher Dictionary.com accessdate 3 December 2011 ref As the bow wave spreads out, it defines the outer limits of a ship s wake . A large bow wave slows the ship down, poses a risk to smaller boats, and in a harbor can cause damage to shore facilities and moored ships. Therefore, Hull watercraft ship hull s are generally designed to produce as small a bow wave as practical. Description Image USS Connecticut BB 8 speed trials.jpg thumb left 180px Bow wave of the USS Connecticut BB 18 USS Connecticut , on her speed trials in 1906 or 1907. The size of the bow wave is a function of the speed of the ship, its Draft hull draft , Ocean surface wave surface wave s, water depth, and the shape of the bow. A ship with a large Draft hull draft and a blunt bow will produce a large wave, while ships that Planing sailing plane over the surface of the water will create smaller bow waves. Bow wave patterns are studied in the field of computational fluid dynamics . The bow wave carries energy away from the ship at the expense of its kinetic energy it slows the ship down. A major goal of naval architecture is therefore to reduce the size of the bow wave and improve the ship s fuel economy. Modern ships are commonly fitted with a bulbous bow to achieve this. A bow wave forms at the head of a swimmer when he moves through the water. The trough of this wave lies near the mouth of the swimmer and helps the swimmer inhale air to breathe just by turning his head. The water of the bow wave, on falling from the height which it attains, bounds and rebounds upon the water bed. See also Shock wave References reflist Category Naval architecture Category Fluid dynamics Category Water waves navy stub de Bugwelle fr Vague d trave is B galda nl ... more details
File Soliton hydro.jpg thumb right A solitary wave water waves solitary wave in a laboratory wave flume. File Breaking wave in wavemaker.ogv thumb right Breaking wave on a slope in a laboratory wave channel movie . File 06golfgootgolven.ogg thumb right Propagating and breaking waves in a wave flume movie . In fluid dynamics , a wave flume or wave channel is a laboratory facility for the physical model ling of water wave s, in order to study their properties and their effects on coastal management coastal structure s, offshore construction offshore structure s, sediment transport and other transport phenomena . A wave flume is a special sort of wave tank the width of the flume is much less than its length. The generated waves are therefore more or less two dimensional in a vertical plane 2DV , meaning that the orbital flow velocity component in the direction perpendicular to the flume side wall is much smaller than the other two components of the three dimensional velocity Euclidean vector vector . This makes a wave flume a well suited facility to study near 2DV structures, like cross sections of a breakwater structure breakwater . Also 3D constructions providing little blockage to the flow may be tested, e.g. measuring wave forces on vertical cylinders with a diameter much less than the flume width. The waves are most often generated with a mechanical wavemaker, although there are also wind wave flumes with additional wave generation by an air flow over the water with the flume closed above by a roof above the free surface. The wavemaker frequently consists of a translating or rotating rigid wave board. Modern wavemakers are computer controlled, and can generate besides periodic function periodic waves also random wave s, solitary wave water waves solitary wave s, wave group s or even tsunami like wave motion. The wavemaker is at one end of the wave flume, and at the other end is the construction being tested, or a wave absorber a beach or special wave absorbing constructions ... more details
to assign to each function by wave. Additional benefits of wave picking include the improved ability to measure productivity within a function budget labor estimate the throughput capacity based on staffing levels evaluate the impact of changes in methods and equipment by function provide feedback ...Unreferenced date September 2009 Wave picking is a term for a process used in a Warehouse Management System to describe a process to support managing the work of a warehouse or distribution center. Wave Picking is an application of a Short Interval Scheduling, to assign the workload into intervals waves to allow management to coordinate the several parallel and sequential activities to complete the work. The Wave data includes the workload by order or function case picking, repack picking, pallet movement, pick position replenishment, packing, etc. providing management the information to calculate staff requirements and assign staff by function, with the expectation that the work in each function, within each wave, can be started and be completed at about the same time. There are two basic planning elements and benefits of wave picking. To organize the sequence of orders and assignment to waves, consistent with routing, loading and planned departure times of shipping vehicles or production requirements, etc, to reduce the space required for shipping dock handling to assemble orders and load and To assign staff to each wave and function within a wave, with the expectation that all the work assigned to each wave will be completed within the wave period, providing management with the ability to monitor and manage performance throughout the day, and respond in a timely way to problems that occur, and more effectively utilize the staffing throughout the shift. Material handling methods and equipment are independent of waving. Each set of method e.g., order pick, batch pick, bulk ... opsandfulfillment batch vs wave 05302006 Batch vs. Wave Picking Multi Channel Merchant Category Supply ... more details
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