Not to be confused with the related concept of the Wave Equation A wavefunction or wavefunction is a probability ... how the wavefunction evolves over time. Image Hydrogen Density Plots.png 280px thumb 300px The electron ... sections. These orbitals form an orthonormal basis for the wavefunction of the electron. Different ..., in an atom with a single electron, such as hydrogen or ionized helium , the wavefunction of the electron ... configurations of all the electrons and the wavefunction describes the probabilities of those configurations. A simple wavefunction is that for a particle in a box . Another simple example is a free particle or a particle in a large box , whose wavefunction is a sinusoid where, in the spirit ... The modern usage of the term wavefunction refers to a complex number complex Vector space vector or Function mathematics function , i.e. an element in a complex Hilbert space . Typically, a wavefunction ... a continuously indexed complex vector math psi x 1, , ldots , , x n math . In all cases, the wavefunction .... The components of a wavefunction describing the same physical state take different complex number complex values depending on the basis being used however the wavefunction itself is not dependent ... add up to 1, the norm mathematics norm of the wavefunction must be 1. Spatial interpretation The physical interpretation of the wavefunction is context dependent. Several examples are provided below ... dimension The spatial wavefunction associated with a particle in one dimension is a complex numbers ... dimensions three dimensional case is analogous to the one dimensional case the wavefunction ... spatial dimensions In this case, the wavefunction is a complex function of six spatial variables ... the full range of all six variables. Given a wavefunction of a system consisting of two or more particles, it is in general not possible to assign a definite wavefunction to a single particle subsystem ... in one dimensional momentum space The wavefunction for a one dimensional particle in momentum space ... 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 &eta ,&rho and G sub L sub &eta ,&rho , 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 . Citation last1 Jaeger first1 J. C. last2 Hulme first2 H. R. title The Internal Conversion of Rays with the Production of Electrons and Positrons url http www.jstor.org stable 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 id MathSciNet id 0107026 year 1960 . dlmf first I. J. last Thompson id 33 title Coulomb Functions Category Special hypergeometric functions ... more details
quantum mechanics 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 in a quantum ... Mechanics publisher Princeton University Press En icon ref The reality of wavefunction collapse ... date url http www.phy.olemiss.edu luca Topics qm collapse.html title WaveFunction Collapse in Quantum ... used Bra ket notation The quantum state , or wavefunction, of a physical system at some point in time ..., which are complex numbers . For simplicity we shall assume that our wavefunction is normalised ... then the state of the wavefunction changes from math scriptstyle psi rang math to just ... in the expansion of the wavefunction have vanished or collapsed into nothing. If a more general measurement ... leaps and wavefunction collapse are therefore merely two sides of the same coin. History and context ... in 1932, ref The collapse or reduction of the wavefunction was introduced by Heisenberg in his uncertainty ... that there were two processes of wavefunction change The probability probabilistic , non unitary ... is process 2 mentioned above. However, when the wavefunction collapses process 1 , from an observer ... 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 collapse ... of the wavefunction collapse is required in the Copenhagen interpretation the objective ... by the expression wavefunction collapse is a fundamental problem in the interpretation of quantum ... which is closely related to the C algebraic formalism the collapse of the wavefunction corresponds to a non unitary quantum operation. The significance ascribed to the wavefunction varies from ... . If the wavefunction merely encodes an observer s knowledge of the universe then the wave ... in classical physics, except that the classical wavefunction does not necessarily obey ... more details
In quantum mechanics , wavefunction s which describe real Elementary particle particle s must be normalizable ... function s as wavefunction solutions for infinite intervals, while those functions can be solutions ... 1. quad 2 math If the integral is finite, we can multiply the wavefunction, math psi math , by a constant such that the integral is equal to 1. Alternatively, if the wavefunction already contains an appropriate ... the wavefunction. Plane waves Plane waves are normalized in a box or to a Dirac delta in the continuum ... x 0 math and math x l math its wavefunction is math psi x,t begin cases Ae i kx omega t , quad 0 le x le l 0, quad text elsewhere . end cases math To normalize the wavefunction we need to find the value ... wavefunction is math psi x,t begin cases left frac 1 sqrt l right e i kx omega t , quad 0 le x le l 0, quad text elsewhere. end cases math Proof that wavefunction normalization does not change associated properties If normalization of a wavefunction changed the properties associated with the wavefunction, the process becomes pointless as we still cannot yield any information about the properties of the particle associated with the un normalized wavefunction. It is therefore important to establish that the properties associated with the wavefunction are not altered by normalization. All ... Quantum mechanics Schr dinger equation Wavefunction References reflist External links http cat.middlebury.edu ... wave functions which represent real particles must be normalizable, that is, they must have a total ... function mathematics function . However, math psi psi mid psi mid 2 math is real number real , greater than or equal to zero, and is known as a probability density function . This means that math ... density function . Since the particle exists, its probability of being anywhere in space must be equal ... of position etc. are derived from the Erwin Schr dinger Schr dinger wave equation. The properties are therefore unchanged if the Schr dinger wave equation is invariant under normalization. The Schr dinger ... 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
Spheroidal wave functions are solutions of the Laplace 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 or oblate harmonics if oblate spheroidal coordinates are used and prolate spheroidal wave functions or prolate harmonics 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 See also Oblate spheroidal coordinates , especially the section Oblate spheroidal coordinates Oblate spheroidal harmonics Oblate spheroidal harmonics , for a more extensive discussion. References reflist dlmf id 30 first H. last Volkmer mathapplied stub Category Partial differential equations Category Special functions ... more details
rate that vt increases. That is, the wave shaped like the function F will move in the positive x ... of A k1 is a function exhibiting a sharp peak in a region of wave vectors k surrounding the point ... can be a useful concept even if the wave is not periodic function periodic in space. For example ... function is periodic, so the sine wave or sinusoid has a wavelength in space and a period in time ... and X rays . Quantum mechanical waves Main Schr dinger equation See also Wavefunction The Schr dinger ... are wavefunction s which can be used to describe the probability density of a particle ... function math psi mathbf r , t 0 A e i mathbf k cdot r , math where the wavelength is determined by the wave ... to describe the wavefunction of a particle. In a wave packet, the wavelength of the particle ... the wavefunction of a localized particle, the wave packet is often taken to have a Gaussian function Gaussian shape and is called a Gaussian wave packet . ref name wavepacket See for example ...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 mathematics and science , a wave is a disturbance ... travel and the wave motion transfers energy from one point to another, often with no permanent displacement ... on capillary wave rippling water will bob up and down, staying in about the same place while the wave itself moves onwards. One type of wave is a mechanical wave, which propagates through a medium in which ... of the wave. Another type of wave can travel through a vacuum , e.g. electromagnetic radiation ... waves . This type of wave consists of periodic oscillations in electrical and magnetic fields. A main ... at right angles to the motion of the wave, and longitudinal waves, in which the disturbance is in the same direction as the wave. Waves are described by a wave equation which sets out how the disturbance proceeds over time. The mathematical form of this equation varies depending on the type of wave ... more details
The Wave may refer to The Third Wave , a 1967 high school experiment inspired by Nazism 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 based on the experiment The Wave newspaper The Wave newspaper The Wave board , a vehicle similar to a skateboard The Wave, Arizona , a sandstone formation The Wave skyscraper , a skyscraper on the Gold Coast, Australia The Great Wave off Kanagawa , a famous woodblock print by 19th century Japanese artist Hokusai Wave audience , an occurrence at sporting events 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 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 an ECG curve 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
wiktionarypar functionFunction may refer to Diatonic function , a term in music theory 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. A formal event such as a party or meeting See also Function hall Functional disambiguation Functionalism disambiguation Functor disambig bs Funkcija vor bg ca Funci desambiguaci cs Funkce da Funktion de Funktion et Funktsioon es Funci n eo Funkcio eu Funtzio argipena fr Fonction ko it Funzione lt Funkcija lmo Funziun nl Functie ja no 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
Infobox Music genre name No Wave bgcolor crimson color white stylistic origins Punk rock br Avant garde ... jazz other topics Timeline of punk rock New Wave music New wave Post punk No Wave was a short lived ... its beginnings during the mid 1970s in New York City New York . ref name romanowski The term No Wave is a satiric al word play in rejection of the then popular New Wave music New Wave genre &mdash the term originates from a a 1981 show, New York New Wave , curated by artist Diego Cortez. Citation ... No Wave is not a clearly definable musical genre with consistent features. Various groups drew on such disparate ... music experimental . There are, however, some elements common to most No Wave music, such as abrasive ... Amospoe.jpg thumb left No Wave poster for film by Amos Poe deletable image caption Thursday, 11 March ... all books no wave.html No Wave , with a foreword by Weasel Walter London Black Dog Publishing ... on p. 171. ref No Wave had a notable influence on noise and Industrial music industrial bands ... to a bunch of nihilists, I do feel fond of the No Wave people. James Chance s music actually ... It Up and Start Again, by Stephen Metcalf and Simon Reynolds, Slate Magazine ref blockquote No Wave ... , Princeton University Press, 2006 ref No Wave Cinema No Wave Cinema was an underground film movement coming out of Tribeca and the East Village, Manhattan at the time. No Wave filmmakers included ... Tillett among others and led to the Cinema of Transgression and work by Nick Zedd and Richard Kern . No Wave ... The Lounge Lizards The Static Ut band Ut Von Lmo div col end 1990s No Wave continues to have a far reaching impact on the American anti culture music scene. In a foreword to the book No Wave , Weasel ... the anti movement known as No Wave were found in many other archetypes before and just as many afterwards ..., white hot focus. ref name Masters Masters, Marc. 2007 No Wave London, UK Black Dog Publishing ref blockquote In 2004 Scott Crary made a documentary, Kill Your Idols, about No Wave. In 2007 2008 ... more details
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 S wave can also refer to the lowest energy electronic wavefunction in atomic physics see atomic orbital . A type of seismic 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 through elastic media, and the main restoring force comes ... media math nabla cdot mathbf u 0. math Image Earthquake wave shadow zone.svg thumb 150px The shadow zone of a P wave . S waves don t penetrate the outer core, so they re shadowed everywhere more ... direct arrival on an earthquake 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 ... to where they originate. They can still appear in the solid inner core when a P wave strikes the boundary ... as SH waves. If polarized in the vertical plane, they are classified as SV waves. When an S or P wave ..., even if the interface is between two solid media, mode conversion results. If a P wave strikes ... SV. Similarly, if an SV wave strikes an interface, the same four modes occur in different ... in turn are solutions to the wave equation . S waves are slower than P waves . Theory The prediction ... of motion for seismic wave propagation math rho frac partial 2u i partial t 2 partial j tau ij math ... Applying vector identities and making certain approximations gives the seismic wave equation in homogeneous ... t 2 0 math which is simply the wave equation applied to the curl of u with a velocity math beta math ... more details
Image SinusRhythmLabels.svg right thumb Schematic representation of normal Electrocardiography ECG The T wave represents the repolarization or recovery of the ventricles. The interval from the beginning of the QRS complex to the apex of the T wave is referred to as the absolute refractory period . The last half of the T wave is referred to as the relative refractory period or vulnerable period . The T wave contains more information than the QT interval . The T wave can be described by its symmetry, skewness, slope of ascending and descending limbs, amplitude and subintervals like the TpeakTend interval ref cite journal title Reference values of electrocardiogram repolarization variables in a healthy population year 2010 author Haarmark C, Graff C, Andersen MP, et al. journal Journal of Electrocardiology volume 43 pages 31 9 issue 1 pmid 19740481 ref In most leads, the T wave is positive. However, a negative T wave is normal in lead aVR. Lead V1 may have a positive, negative, or biphasic T wave. In addition, it is not uncommon to have an isolated negative T wave in lead III, aVL, or aVF. Clinical significance T wave inversion negative T waves can be a sign of ischemic heart disease coronary ischemia , Wellens syndrome , left ventricular hypertrophy , or central nervous system CNS disorder. Tall or tented T waves may indicate hyperkalemia . ref http www.uhmc.sunysb.edu internalmed nephro webpages Part D.htm reF Flat T waves less than 1 mV in the limb leads and less than 2 mV in the precordial leads ref name meddean may indicate coronary ischemia or hypokalemia ref name meddean http www.meddean.luc.edu lumen MedEd MEDICINE skills ekg les1prnt.htm Loyola University Chicago Stritch ... finding of acute myocardial infarction is sometimes the hyperacute T wave , which can ... 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 in precordial leads ... 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
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 Spicewood, TX Wave on Wave recorded at Cartee Day Studio, Nashville, TN ref name Wave Genre Country music Country Length 54 02 Label Universal Records Universal Mercury Records Mercury Republic Records Republic Producer Tony Brown record producer Tony Brown , Don Gehman, Doug Morris Reviews Allmusic rating 2 5 Allmusic class album id r649332 pure url yes link 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 Wave on Wave is the seventh studio album released by American country music artist Pat Green . Released in 2003 on Universal Records Universal Republic Records in association with Mercury Records , it produced two singles for Green on the Billboard magazine Billboard country charts. The title track, the first of these two singles, became Green s highest charting single, peaking at 3 on the country charts, while A Guy Like Me reached 31. Wave on Wave has been certified gold album gold by the RIAA . ref Allmusic class album id r649332 pure url yes Album review ref ref http www.cmt.com artists az green pat 347545 album.jhtml Album info, audio video clips and lyrics ref Track ..., Wilkins 3 28 Wave on Wave song Wave on Wave Green, Neuhauser, Justin Pollard 4 04 California Green ... Wave cite album notes title Wave on Wave bandname Pat Green year 2003 format CD publisher Universal ... 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 ... 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 Earth science and geography Antarctic Circumpolar Wave , a regional water wave Cold wave , meteorology Gravity ...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
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.png 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 . See also Rectangular function Sampling function Pulse width modulation Sine wave Triangle wave Square wave DEFAULTSORT Pulse Wave Category Waves Electronics stub ... 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
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
Image Waveforms.svg thumb 250px sine wave Sine , square wave square , triangle wave triangle , and sawtooth wave sawtooth waveforms. Image DDS function generator.jpg thumb 250px A Direct digital synthesis DDS function generator. Image Kenwood FG273 Function Generator.jpg thumb 250px A typical low cost function generator. A function generator is a piece of electronic test equipment or software used ... case some kind of triggering source is required internal or external . Function Generators are used ..., or to introduce an error signal into a control loop. Explanation Analog function generators usually generate a triangle wave form as the basis for all of its other outputs. The triangle is generated ..., the charging and discharging is reversed using a comparator , producing the linear triangle wave ... may be obtained. Sawtooth wave s can be produced by charging the capacitor slowly, using a current .... A 50 duty cycle square wave is easily obtained by noting whether the capacitor is being charged .... Most function generators also contain a non linear diode shaping electrical network circuit that can convert the triangle wave into a reasonably accurate sine wave . It does so by rounding off the hard corners of the triangle wave in a process similar to Clipping audio clipping in audio systems. A typical function generator can provide frequencies up to 20 MHz. RF generators for higher frequencies are not function generators in the strict sense since they typically produce pure or modulated sine signals only. Function generators, like most signal generator s, may also contain an attenuator ... response of a given electronic circuit . Some function generators can also generate white noise white or pink noise . More advanced function generators use Direct digital synthesizer Direct ... waveform that can be described by a table of amplitudes. Other meanings Another type of function generator is a sub system that provides an output proportional to some mathematical function of its input ... 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. 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. 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 . Image USS Connecticut BB 8 speed trials.jpg thumb left Bow wave of the USS Connecticut BB 18 USS Connecticut , on her speed trials in 1906 or 1907. 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. References reflist Category Naval architecture Category Fluid dynamics Category Water waves navy stub de Bugwelle is B galda ... more details
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 Fourier series bs Trougaoni talas ca Ona triangular es ...A triangle wave is a non sinusoidal waveform named for its Triangle triangular shape. 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 or changing its phase by , and rolling off the harmonics by the inverse square of their relative frequency to the Fundamental frequency fundamental . This infinite Fourier series converges to the triangle wave math begin align x mathrm triangle t & frac 8 pi 2 sum k 0 infty 1 k , frac sin left 2k 1 omega t right 2k 1 2 & frac 8 pi 2 left sin omega t 1 ... synthesis of a triangle wave with an increasing number of harmonics. See Fourier Transform Fourier ... 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 ... more details
Orphan date February 2009 A receiver function technique is a way to model the structure of the Earth by using the information from teleseismic earthquake teleseismic earthquakes recorded at a three component seismograph . A teleseismic P wave will generate P to S conversions at crustal boundaries beneath the seismograph. The difference in travel time between the generated S wave and P wave contains information about the distance to the boundary and if further reverberations are included more detailed structure can be resolved. This is done by deconvolution of the incoming vertical and longitudinal components of the seismogram which removed the common part of the components namely the source and travel path information. The resulting waveform is the receiver function. References C. A. Langston Structure under Mount Rainier, Washington, inferred from teleseismic body waves, J. Geophys. Res. 84 B9 , 4749 4762, 1979 Charles J. Ammon, George E. Randall, and George Zandt On the Nonuniqueness of Receiver Function Inversions, Journal of Geophysical Research 95 B10 , 15303 15318, 1990 Malcolm Sambridge Geophysical inversion with a neighbourhood algorithm I. Search a parameter space, Geophysical Journal International 138, 479 494, 1999 External links http eqseis.geosc.psu.edu cammon HTML RftnDocs rftn01.html An Overview of Receiver Function Analysis Category Seismology and earthquake terminology de Receiver Functions ... more details
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