confusing date June 2010 Electronparamagneticresonance EPR or electron spin resonance ESR spectroscopy is a technique for studying chemical species that have one or more unpaired electron s, such as organic ... Schweiger, Gunnar Jeschke title Principles of Pulse ElectronParamagneticResonance publisher Oxford ...?seriesid 49 ElectronParamagneticResonance Specialist Periodical Reports Published by the Royal Society of Chemistry BranchesofSpectroscopy DEFAULTSORT ElectronParamagneticResonance Category Scientific ... magnetic resonance NMR , but it is electron spins that are excited instead of spin physics spin s of atomic ..., so that a much higher electromagnetic frequency is needed to bring about a spin resonance with an electron ... G shown at the right, spin resonance occurs near 9388.2 MHz for an electron compared to only ... information about a paramagnetic center s electronic structure. An unpaired electron responds not only .... E., & Bolton, J. R. 1972 . Electron spin resonance Elementary theory and practical applications. New ... technique is less widely used than NMR. However, this limitation to paramagnetic species also ... of an EPR signal Every electron has a magnetic moment and spin physics spin quantum number s 1 2 ... field with strength B sub 0 sub , the electron s magnetic moment aligns itself either parallel m ... g sub e sub is the electron s so called g factor physics g factor see also the Land g factor Land .... Image EPR splitting.jpg centre 300 px Splitting of electron spin states An unpaired electron can move ... math epsilon math h math nu math such that the resonance condition, math epsilon math math Delta math ... the reverse. In practice, it is usually the frequency that is kept fixed. A collection of paramagnetic ... B sub B sub 0 sub can be used, consider the case of a free electron, which has g sub e sub 2.0023 ... Measurement of the Electron Magnetic Moment Using a One Electron Quantum Cyclotron journal Physical ... forms. For the microwave frequency of 9388.2 MHz, the predicted resonance position is a magnetic ... more details
Acoustic paramagneticresonance APR is a phenomenon of resonant absorption of sound by a system of magnetic particles placed in an external magnetic field . It occurs when the energy of the sound wave quantum becomes equal to the splitting of the energy levels of the particles, the splitting being induced by the magnetic field. APR is a variation of electronparamagneticresonance EPR where the acoustic rather than electromagnetic waves are absorbed by the studied sample. APR was theoretically predicted in 1952, independently by Semen Altshuler and Alfred Kastler , ref cite book title The beginning of paramagneticresonance author Boris I. Kochelaev publisher World Scientific year 1995 isbn 9810221142 url http books.google.com ?id oDHVfFIaK 0C&pg PA100&lpg PA100&dq 22acoustic paramagneticresonance 22 al 27tshuler&q 22acoustic 20paramagnetic 20resonance 22 20al 27tshuler page 100 ref ref cite journal author S.A. Altshuler journal Soviet Physics Doklady year 1952 volume 85 page 1235 language Russian ref and was experimentally observed by W. G. Proctor and W. H. Tanttila in 1955. ref cite journal doi 10.1103 PhysRev.98.1854 title Saturation of Nuclear Electric Quadrupole Energy Levels ... title Paramagnetic absorption of sound volume 75 issue 3 page 459 url http ufn.ru ru articles 1961 11 d ref History After discovery of EPR in 1944, Evgeny Zavoisky predicted that the resonance phenomenon ... by Alfred Kastler whereas Altshuler reported the effect on electron spins, Kastler calculated ... 35 sup Cl nuclei in single crystals of sodium chlorate . This nuclear APR work was extended to electron ... on Electron Spin Resonances in Quartz year 1959 last1 Jacobsen first1 E. last2 Shiren first2 N ... Mechanism File EPR splitting.jpg thumb 300px The APR effect is very similar to EPR every electron or nucleus ... much faster. This affects the lineshape of the resonance and its temperature dependence and allows ... static field corresponding to the applied frequency. For an electron with spin 1 2 and the splitting ... more details
electronparamagneticresonance EPR transition. ref name ENDORreview cite journal title Pulsed Electron Nuclear Double Resonance Methodology journal Chem. Rev. year 1991 volume 91 pages .... ref name Goldfarb2006 See also Electronparamagneticresonance Pulsed EPR Spin echo Nuclear magnetic resonance References reflist DEFAULTSORT Electron Nuclear Double Resonance Category Spectroscopy Category ...Electron nuclear double resonance ENDOR is a magnetic resonance technique for obtaining detailed molecular and electronic structure of paramagnetic species. ref name Basictext Kevan, L and Kispert, L. D. Electron Spin Double Resonance Spectroscopy Interscience New York, 1976. ref In the standard continuous ... via the Electron Spin Resonance Line journal Phys. Rev. year 1956 volume 103 pages 834 835 doi 10.1103 .... Electron Nuclear Double Resonance Spectroscopy of Radicals in Solution VCH Publishers New York, 1988 ... species only. ref name greenbook Schweiger, A. Structure and Bonding Electron Nuclear Double Resonance ... Electron nuclear nuclear resonance Double ENDOR requires the application of two rf RF1 and RF2 fields ... journal title Electron nuclear nuclear triple resonance spectrometer journal J. Phys. E Sci. Instrum ... name Schweiger1981molphys cite journal title Electron nuclear double resonance with circularly polarized ... we have one electron S 1 2 and one proton I 1 2 , to interact with an applied magnetic field. The Hamiltonian ... mathrm Q math The four terms in this equation describe the electron Zeeman interaction EZ , the nuclear ... Q . ref name ENDORreview The electron Zeeman interaction describes the interaction between an electron ... between the electron spin and the magnetic nucleus. The nuclear quadrupole interaction is present ... electron NZ and EZ , on the distances between nuclei and on the spin density distribution ... constant in hertz Hz . This diagram indicates the electron Zeeman, nuclear Zeeman and hyperfine splittings ... where math gamma mathrm e math and math gamma mathrm n math are the gyromagnetic ratio of the electron ... more details
Electron cyclotron resonance is a phenomenon observed both in plasma physics and condensed matter physics . An electron in a static and uniform magnetic field will move in a circle due to the Lorentz force ... is the elementary charge and math m math is the mass of the electron. For the commonly used microwave frequency 2.45 GHz and the bare electron charge and mass, the resonance condition is met when ... a static magnetic field and a high frequency electromagnetic field at the electron cyclotron resonance ... Ridge National Laboratory , the use of electron cyclotron resonance for efficient plasma generation ... in various technological fields. Many diverse activities depend on electron cyclotron resonance ... bumpers for cars. The ECR ion source makes use of the electron cyclotron resonance to heat a plasma. Microwaves are injected into a volume, at the frequency corresponding to the electron cyclotron resonance defined by a magnetic field applied to a region inside the volume. The volume contains ... without the use of this fundamental technology, which makes electron cyclotron resonance ion and plasma .... Use dmy dates date September 2010 DEFAULTSORT Electron Cyclotron Resonance Category Waves in plasmas ... charge e has the value 1.602 10 sup 19 sup coulomb s, the mass of the electron m has the value 9.109 ... directly into the electrons. These properties make electron cyclotron heating a very valuable research tool for energy transport studies. In addition to heating, electron cyclotron waves can be used to drive current. The inverse process of Cyclotron radiation electron cyclotron emission can be used as a Plasma diagnostics diagnostic of the radial electron temperature profile. ECR ion sources Since ... state physics effective mass tensor math begin Vmatrix m end Vmatrix math . Cyclotron resonance is therefore ... is temperature. When these conditions are satisfied, an electron will complete its cyclotron orbit ... resonance Synchrotron Gyrotron De Haas van Alphen effect http mgm.mit.edu historic i1101.pdf Personal ... more details
The Resonance are a Drum and Bass Breakbeat Breaks music group from Perth, Western Australia . Producer Trilby Temperley and guitarist Paul Hines write tracks in collaboration with singers Rebecca Brennan, Jono McNeil and others. They have performed at Breakfest in Western Australia, support for Roni Size , gigs with K Osccillate from Melbourne and are regulars with Deuce Records for many shows. The Resonance have releases on http www.deuce.com.au Deuce Records , and Drum and Bass DJ Greg Packer DJ Greg Packer remixed their track Afraid of the Dark . Among other achievements, they have produced the soundtracks for leading Australian designer http www.aureliocostarella.com Aurelio Costarella s L.A show and the recent Australian Fashion Week show Mirror Mirror wrote the theme to the Overclockers Australia s podcast and they feature on the Australian Siggraph Computer graphics showreels. Sources http deuce.com.au featured artists.html resonance http www.wam.asn.au wamifest06 acts.htm resonance External links http www.theresonance.net The Resonance Online http www.myspace.com theresonanceperth The Resonance on MySpace http trilbyt.blogspot.com Res producer Trilby s blog Category Western Australian musical groups Resonance, The Category Drum and bass music groups Resonance, The ... more details
into single line entries. Infobox Particle name Electron image File Crookes tube in use lateral view standing cross prPNr 11.jpg 280px alt A glass tube containing a glowing green electron beam caption ... Rays A History of J J Thomson s Electron url http books.google.com ?id xUzaWGocMdMC&printsec ... Warwick first2 A. year 2001 title Histories of the Electron The Birth of Microphysics url http ... 44 page 293 ref symbol SubatomicParticle Electron , SubatomicParticle beta mass val 9.10938291 ... electric charge val 1 el e ref group note The electron s charge is the negative of elementary ... Bohr magneton sub B sub ref name 2010 CODATA spin frac 1 2 The electron symbol SubatomicParticle Electron is a subatomic particle with a negative elementary charge elementary electric charge . It has ... . ref name prl50 An electron has a rest mass mass that is approximately Proton to electron mass ... spin of the electron is a half integer value in units of reduced Planck constant , which means that it is a fermion . The antiparticle of the electron is called the positron it is identical to the electron .... When an electron collides with a positron, both particles may either Bhabha scattering scatter off ... in experiments with electrons, due to their tiny mass. Since an electron is a fermion, no two electrons ... Laming ref name arabatzis the name electron was introduced for this charge in 1894 by Irish physicist George Johnstone Stoney . The electron was identified as a particle in 1897 by J. J. Thomson and his ... , electrons play an essential role. An electron in motion relative to an observer generates a magnetic field , and will be deflected by external magnetic fields. When an electron is accelerated, it can ... to an atom s total mass. The attractive Coulomb s law Coulomb force between an electron and a proton ... of containing and observing individual electrons as well as Plasma physics electron plasma , whereas dedicated telescope s can detect electron plasma in outer space. Electrons have many applications ... more details
Electronparamagneticresonance Nuclear magnetic resonance External links http igorbarsukov.com fmr.html Calculation of some important resonance fields http igorbarsukov.com sthm.html Spatially resolved ferromagnetic resonance technique http www.physik.fu berlin.de einrichtungen ag ag kuch research ...Ferromagnetic resonance , or FMR, is a spectroscopic technique to probe the magnetization of ferromagnetic materials. It is a standard tool for probing spin wave s and spin dynamics. FMR is very broadly similar to electronparamagneticresonance EPR , and also somewhat similar to nuclear magnetic resonance NMR except that FMR probes the sample magnetization resulting from the magnetic moment s of dipolar coupled but unpaired electron s whereas NMR probes the magnetic moment of Nucleus atomic structure atomic nuclei screened by the atomic or molecular orbitals surrounding such nuclei of non zero nuclear spin. History Ferromagnetic resonance was unknowingly discovered by V. K. Arkad yev when he observed the Absorption optics absorption of Ultra high frequency UHF radiation by ferromagnetic materials in 1911. A qualitative explanation of FMR along with an explanation of the results from Arkad yev was offered up by Ya. G. Dorfman in 1923 when he suggested that the optical transitions due to Zeeman splitting could provide a way to study ferromagnetic structure. Description FMR arises from the precessional motion of the usually quite large magnetization math scriptstyle vec M math of a ferromagnetic material in an external magnetic field math scriptstyle vec H math . The magnetic field exerts a torque on the sample magnetization which causes the magnetic moments in the sample to precess . The precession frequency of the magnetization depends on the orientation of the material, the strength of the magnetic field, as well as the macroscopic magnetization of the sample the effective ... Ferromagnetic Resonance The Phenomenon of Resonant Absorption of a High Frequency Magnetic Field in Ferromagnetic ... more details
Magnetic resonance abbreviated MR can mean Nuclear magnetic resonanceElectron spin resonance Magnetic resonance imaging MRI Functional magnetic resonance imaging fMRI Muon spin spectroscopy SR disambig he sk Magnetick rezonancia uk zh ... more details
In physics , the cyclotron frequency or gyrofrequency is the frequency of a charged particle moving perpendicularly to the direction of a uniform magnetic field , i.e. a magnetic field of constant magnitude and direction. Since that motion is always circular, the cyclotron frequency is well defined. ref name Physics Physics by M. Alonso & E. Finn, Addison Wesley 1996. ref ref http www.wolframalpha.com input ?i cyclotron frequency ref See also Ion cyclotron resonance Electron cyclotron resonance References references Category Condensed matter physics Category Electric and magnetic fields in matter Category Scientific techniques ... more details
one source date December 2010 Resonance fluorescence is fluorescence from an atom or molecule in which the electromagnetic radiation light emitted is at the same frequency as the light absorbed. ref cite web title Resonance Fluorescence work IUPAC Compendium of Chemical Terminology publisher IUPAC date 1997 url http www.iupac.org goldbook R05335.pdf format pdf accessdate 2007 06 01 ref In resonance fluorescence, a photon is Absorption electromagnetic radiation absorbed , causing an electron to jump to a higher energy level level from which, after a delay, it falls back to its original level, Emission electromagnetic radiation emitting a photon having the same energy as the one absorbed. The emission direction is random. Notes references Category Radiochemistry Category Fluorescence ko ... more details
. br Resonance is a key component of valence bond theory . Electron delocalization lowers the potential ... derives from electron delocalization, of which resonance is only a description. Delocalization ... of resonance structures for an electron withdrawing group and electron releasing group on benzene ...Other uses2 Resonance File Stickstoffdioxid.svg thumb 280px Two of the contributing structures of nitrogen dioxide In chemistry, resonance or mesomerism ref name mesomerism IUPAC Gold Book http goldbook.iupac.org ... delocalized electron s within certain molecules or polyatomic ion s where the bonding cannot be expressed ... by several contributing structures ref name resonance IUPAC Gold Book http goldbook.iupac.org R05326.html resonance http www.iupac.org goldbook E02005.pdf PDF ref also called resonance structures ... molecular structure. However these individual contributors cannot be observed in the actual resonance ..., as might be assumed from the word resonance . The actual structure is an approximate intermediate ... form between different contributing structures is called a resonance hybrid . ref name ... structure with the lowest potential energy is called the resonance energy ref name resonance energy IUPAC Gold Book http goldbook.iupac.org R05333.html resonance energy http www.iupac.org goldbook R05333.pdf PDF ref or delocalization energy. Resonance is distinguished from tautomerism and conformational .... General characteristics of resonance Molecules and ions with resonance also called mesomerism have the following basic characteristics File Carbonate ion resonance 2D.png thumb 380px Contributing ... contributing structures , resonance structures or canonical forms . However, the real structure is not a rapid ..., because none of them exactly represents the actual structure. To represent the intermediate, a resonance ... ts 13 large.html Resonance Manuscript for publication in Encyclop dia Britannica, p.13 July 29 ... is made by two valence electron s, localized between the two bonded atoms. Each double bond has ... more details
A shape resonance is a metastable state in which an electron is trapped due the shape of a potential ... electron . Today, there is some debate about the definition and even existence of the shape resonance ... 1 full text ref describes a state as being a shape resonance if, the internal state of the system ... dx.doi.org 10.1103 RevModPhys.45.378 Resonances in Electron Impact on Atomic and Diatomic Molecules ... NBS50.pdf reprint ref for the discovery of the Fano resonance line shape ref http arxiv.org abs ... body&id pdf 1&handle euclid.cmp 1104159235 The Shape Resonance J. M. Combes, P. Duclos, M. Klein ... , a shape resonance, in contrast to a Feshbach resonance , is a resonance which is not turned .... More simply, the shape resonance total energy is more than the separated fragment energy. ref ... in Resonances in Electron Molecule Scattering Van Der Waals Complexes, and Reactive Chemical Dynamics .... ref http authors.library.caltech.edu 10405 1 ZOBjpb95.pdf Absolute differential cross sections for electron ... page 839 856 1995 ref Related terms include a special kind of shape resonance, the core excited shape resonance , and trap induced shape resonance ref http info.phys.unm.edu ideutsch Publications PRL83201.pdf Quantum State Control via Trap Induced Shape Resonance in Ultracold Atomic Collisions Rene ..., vol. 86, pp. 4504 4507 ref In nuclear physics the concept of Shape Resonance is described by Amos de ... resonance has been introduced to describe the fact that the resonance in the potential scattering for the particle of energy E is controlled by the shape of the nucleus. In fact the shape resonance ... scattering channels. At the resonance energy a quasi bound state is degenerate with a continuum ... is close to the energy of the resonance they interact strongly, and their scattering cross section becomes very large. A particular type of shape resonance occurs in multiband or two band superconducting ... DEFAULTSORT Shape Resonance Category Scattering Category Spectroscopy ... more details
The Roper resonance , also known as P sub 11 sub 1440 , is an unstable baryon state particle with a mass of about 1,440 MeV c sup 2 sup and with a relatively wide full Relativistic Breit Wigner distribution Breit Wigner width 300 MeV c sup 2 sup . It contains three quark s up u or down d with total spin physics spin J 1 2 and total isospin I 1 2. In the quark model it is considered to be a radially excited three quark state with radial quantum number N 2 and positive parity physics parity . The Roper Resonance has been a subject of many studies because its mass is actually lower than three quark states with radial quantum number N 1. Only in the late 2000s was the lower than expected mass explained by theoretical calculations, revealing a quark core shielded by a dense cloud of pions and other mesons. Discovery The Roper resonance was discovered in 1963 by a computer fit of particle scattering theory to large amounts of pion nucleon scattering data. The analysis was done on computers at Lawrence Livermore National Laboratory for Ph.D. thesis work of http arts.bev.net roperldavid L. David Roper at Massachusetts Institute of Technology under the direction of http tech.mit.edu V113 N8 ... resonance decays into a system consisting of other hadron s with sum of the masses less than the mass of the original state. The Roper resonance decays most of the time via the strong force into an ordinary ... Evidence for a P sub 11 sub Pion Nucleon Resonance at 556 MeV , L. D. Roper, Phys. Rev. Letters ... Lee, http www.phy.anl.gov theory PHYTI09 PHYTI09 fichiers lee anlwk 09.pdf Structure of Roper Resonance ... 05&qbeforey 2006&domaint &adultfilter moderate Search for web articles about the Roper Resonance Composition class wikitable Particle Symbol Makeup Average Particle Data Group PDG br mass electron volt ... Wigner distribution Full width br electron volt MeV speed of light c sup 2 sup Decays to P sub 11 ... Booklet See also List of baryons particle physics quark model DEFAULTSORT Roper Resonance Category ... more details
wiktionarypar resonanceResonance may refer to Resonance in physical systems. Specific subtypes include Mechanical resonance as in a pendulum or mass spring system Electrical resonance as in electrical circuits with one or more capacitors and inductors. This distinction is a big arbitrary as a resonant microwave cavity is not much different than a guitar... Acoustic resonance such as that in musical instruments Orbital resonance in celestial mechanics In physics and chemistry Resonance chemistry resonance in chemistry refers to electronic delocalization in molecules often represented via a combination of related Lewis structures. Nuclear magnetic resonance NMR this is the same issue as with other ... by resonant element beyond extracting energy. In these cases, the resonance is a degeneracy between ... may be OR but I think the grouping is reasonable even with out a source. Resonance particle physics as an isolated particle capable of decay that decays spontaneously Shape resonance Feshbach resonance Fano resonance Colloquial or soft science usages that generally connote similar notions Limbic resonance As a proper name or title Resonance Anathema album Resonance and Resonance Vol. 2 , compilation albums by British rock band Anathema Resonance FM , a London based community radio station run by the London Musicians Collective Resonance TV show Resonance , a collaborative creative project and television show directed by Colin Teague Resonance , the magazine of the London Musicians Collective Resonance , the magazine for players of the resophonic guitar Resonance Jordan Rudess album Resonance , an album by Jordan Rudess Resonance Mad at Gravity album Resonance , an album by Mad at Gravity Resonance Joe Pass album Resonance , an album by Joe Pass Resonance Antigama album Resonance , an album by Antigama Resonance Madras String Quartet album Resonance , an album by Madras String Quartet Resonance T.M.Revolution song Resonance , a song by T.M.Revolution Resonant In phonetics, the word ... more details
Context date September 2008 File Fano resonance scs.png thumb right Plot of scattering cross section versus normalized energy for various values of the parameter q illustrating the asymmetric Fano line shape. In physics , a Fano resonance is a type of resonant scattering phenomenon that gives rise to an asymmetric line shape. Interference between a background and a resonant scattering process produces the asymmetric line shape. It is named after Italian physicist Ugo Fano who gave a theoretical explanation for the scattering line shape of inelastic scattering of electrons off of helium ref A. Bianconi http arxiv.org abs cond mat 0211452 Ugo Fano and shape resonances in X ray and Inner Shell Processes AIP Conference Proceedings 2002 19th Int. Conference Roma June 24 28, 2002 A. Bianconi arXiv cond mat 0211452 21 November 2002 ref ref Ugo Fano 1961 Effects of Configuration Interaction on Intensities and Phase Shifts, Phys. Rev. 124 , pp. 1866 1878 DOI 10.1103 PhysRev.124.1866 ref . However Ettore Majorana was the first to discover this phenomenon ref Alessandra Vittorini Orgeas, Antonio Bianconi http www.springerlink.com content j703124770742351 From Majorana Theory of Atomic Autoionization to Feshbach Resonances in High Temperature Superconductors Journal of Superconductivity and Novel Magnetism, 22, 215 221 2009 ref . Because it is a general wave phenomenon, examples can be found across many areas of physics and engineering. History The explanation of the Fano line shape first appeared in the context of inelastic electron scattering by helium and autoionization . The incident electron doubly excites the atom to the math 2s2p math state. The doubly excited atom spontaneously decays by ejecting one of the excited electrons. Fano showed that interference between the amplitude to simply scatter the incident electron and the amplitude to scatter via autoionization creates an asymmetric ... of the autoionization lifetime. Explanation The Fano resonance line shape is due to Interference ... more details
Unreferenced stub auto yes date December 2009 A resonance chamber uses resonance to amplify sound . The chamber has interior surfaces which reflect an acoustics acoustic wave. When a wave enters the chamber, it bounces back and forth within the chamber with low loss See standing wave . As more wave energy enters the chamber, it combines with and reinforces the standing wave, increasing its Amplitude intensity . See also Cavity resonator electrical version Resonance Sounding box Waveguide DEFAULTSORT Resonance Chamber Category Acoustics Sci stub ru ... more details
Infobox Album See Wikipedia WikiProject Albums Name Resonance Vol. 2 Type Compilation Artist Anathema band Anathema Cover Anathema Resonance2.jpg Released April 30, 2002 Recorded n a Genre Death doom br Gothic metal Length 64 10 Label Peaceville Records Producer n a Reviews Last album A Fine Day to Exit br 2001 This album Resonance Volume 2 br 2002 Next album A Natural Disaster br 2003 Resonance Volume 2 is a compilation album by the United Kingdom British rock music rock band Anathema band Anathema . It was released in 2002 as a follow up to 2001 s Resonance Anathema album Resonance . Track listing Lovelorn Rhapsody 5 49 from album Serenades Sweet Tears 4 12 from album Serenades Sleepless 96 4 31 1996 version, original from album Serenades Eternal Rise of the Sun 6 34 from album Serenades Sunset of Age 6 55 from album The Silent Enigma Nocturnal Emission 4 18 from album The Silent Enigma A Dying Wish 8 12 from album The Silent Enigma Hope 5 54 from album Eternity Anathema album Eternity Cries On The Wind 5 03 from album Eternity Anathema album Eternity Fragile Dreams 5 32 from album Alternative 4 Empty 3 00 from album Alternative 4 Nailed to the Cross 666 4 10 from album Serenades Mine Is Yours video from ep Pentecost III Notes The version of Lovelorn Rhapsody featured on this compilation is different from that of the Serenades album Serenades performance and was originally exclusive to the Peaceville Volume 4 compilation. Anathema Category Anathema albums Resonance Vol. 2 Category 2002 compilation albums es Resonance II fr Resonance 2 pl Resonance Vol. 2 ru Resonance 2 sv Resonance 2 tr Resonance 2 ... more details
about mechanical resonance in physics and engineering a general description of resonanceresonance mechanical resonance of sound including musical instruments acoustic resonance the music album by the American rock band Tesla band Tesla Mechanical Resonance Image Resonance.PNG thumb right Graph showing mechanical resonance in a mechanical oscillatory system Mechanical resonance is the tendency of a mechanics ... s natural frequency of vibration its resonance frequency or resonant frequency than it does ... constructed structures including bridges, buildings and airplanes a phenomenon known as resonance disaster. Avoiding resonance disasters is a major concern in every building, tower and bridge construction ... mass damper to cancel resonance. Furthermore, the structure is designed to resonate at a frequency ... objects have more than one resonance frequency, particularly at harmonic s multiples of the strongest resonance. It will vibrate easily at those frequencies, and less so at other frequencies. Many clock s keep time by mechanical resonance in a balance wheel , pendulum, or Quartz clock quartz crystal ... at a different frequency, it will be difficult to move. The resonance frequency of a pendulum ... ref http www.physics.rutgers.edu jackph 2005s PS02.pdf Mechanical resonance ref math f 1 ... one resonance frequency, particularly at harmonics multiples of the strongest resonance. It will vibrate easily at those frequencies, and less so at other frequencies. It will pick out its resonance frequency ... out all frequencies other than its resonance. In the example above, the swing cannot easily ... of mechanical resonance include musical instruments acoustic resonance . Most clock s keep time by mechanical resonance in a balance wheel , pendulum , or Quartz clock quartz crystal . tidal resonance of the Bay of Fundy . Orbital resonance as in some natural satellite moon s of the solar system s gas giants . The resonance of the basilar membrane in the ear . Making a child s Swing seat swing ... more details
Electrical resonance occurs in an electrical network electric circuit at a particular Resonanceresonance frequency where the imaginary parts of circuit element Electrical impedance impedances or admittance s cancel each other. In some circuits this happens when the impedance between the input and output of the circuit is almost zero and the transfer function is close to one. Resonant circuits exhibit ringing and can generate higher voltages and currents than are fed into them. They are widely used in wireless radio transmission for both transmission and reception. Resonance in LC circuits Resonance of a circuit involving capacitors and inductors occurs because the collapsing magnetic field of the inductor generates an electric current in its windings that charges the capacitor, and then the discharging capacitor provides an electric current that builds the magnetic field in the inductor. This process is repeated continually. An analogy is a mechanical pendulum . At resonance, the series Electrical impedance impedance of the two elements is at a minimum and the parallel impedance is at maximum. Resonance is used for tuned filter tuning and filtering, because it occurs at a particular frequency for given values of inductance and capacitance . It can be detrimental to the operation of telecommunications communications circuits by causing unwanted sustained and transient oscillations that may cause noise , signal distortion , and damage to circuit elements. Parallel resonance or near to resonance circuits can be used to prevent the waste of electrical energy, which would otherwise occur while the inductor built its field or the capacitor charged and discharged. As an example ... 1 sqrt LC math where 2 f , in which f is the resonance frequency in hertz , L is the inductance ... of the resonance how long it will ring when excited is determined by its Q factor , which is a function ... Resonance RLC circuit Electronic filter Resonant energy transfer wireless energy transmission between ... more details
Infobox company name Resonance Eduventures Pvt. Ltd. logo File Reso logo new.jpg caption Practice Persistence ... More than 1000 homepage URL http www.resonance.ac.in Resonance Eduventures Pvt. Ltd. About ResonanceResonance Eduventures Pvt Ltd is a privately held & incorporated company valued at INR 850 Cr USD 190 Million . ref Resonance valued at 850 Cr INR http www.vccircle.com 500 news clsa capital close to putting rs 100cr in resonance coaching ref It is a IIT JEE preparation institute in India . Established ..., Rajasthan . Resonance is a coaching institute for IITJEE , AIEEE and AIPMT exams for students of XI .... Resonance has study centres ref Resonance Study Centres http www.infinitecourses.com TestPrepareDetailsPage.aspx?Institute Resonance Eduventures Pvt. Ltd.&TestPrepareID 24 ref in Kota, Delhi ... and Visakhapatnam . Recently Resonance got a private equity infusion ref Private Equity in Resonance ... Milestone Religare Private Equity Fund On 28th Sep 2011, Resonance received its second round of funding of INR 100 Crore ref CLSA Invests in Resonance Eduventures Pvt. Ltd. http www.altassets.net private equity news article nz22184.html ref ref CLSA Backs Resonance http www.livemint.com 2011 10 04175055 ... 1 139213.html ref In these results, Resonance achieved ref Top 3 Ranks for Kota http articles.timesofindia.indiatimes.com ... classroom program and 619 from distance learning program of Resonance. Shubham Mehta & Nisheet Lahoti of Resonance have also won One Gold and One Silver Medal ref Indian Students Bring Laurels in Physics ... selected from Resonance during 2002 to 2011. Out of which 5617 students are from the Regular Classroom Contact Programmes and 3124 from the Distance Learning Programmes. Resonance s this year s results ... of its CSR Initiative, Resonance has tied up with Jawahar Navodaya Vidyalaya Samiti to prepare meritorious ... 29625182 1 iit jee t bhargava reddy iit toppers ref In AIEEE Resonance got 9283 selections, out of which ... Programme. References Reflist External links Resonance Eduventures Pvt Ltd http www.resonance.ac.in ... more details
about mechanical resonance of sound including musical instruments a general description of mechanical resonance in physics and engineering mechanical resonance a general description of resonanceresonance Acoustic resonance is the tendency of an acoustics acoustic system to absorb more energy when it is forced ... resonance frequency than it does at other frequencies. The term acoustic resonance is sometimes used to narrow mechanical resonance to the frequency range of human hearing, but since acoustics is defined .... ref acoustic resonance can occur at frequencies outside the range of human hearing. An acoustically resonant object usually has more than one resonance frequency, especially at harmonic s of the strongest resonance. It will easily vibrate at those frequencies, and vibrate less strongly at other frequencies. It will pick out its resonance frequency from a complex excitation, such as an impulse or a wideband noise excitation. In effect, it is filtering out all frequencies other than its resonance. Acoustic resonance is an important consideration for instrument builders, as most acoustic Musical ... in a flute , and the shape of a drum membrane. Acoustic resonance is also important for hearing. For example, resonance of a stiff structural element, called the basilar membrane within the cochlea ... different resonance on either end so that high frequencies are concentrated on one end and low frequencies on the other. Like mechanical resonance, acoustic resonance can result in catastrophic ... ref Resonance of a string Strings under tension, as in instruments such as lute s, harp s, guitar s, piano s, violin s and so forth, have Resonance resonant frequencies directly related to the mass, length, and tension of the string. The wavelength that will create the first resonance on the string ... vibrations that we hear as a musical note. String resonance in music instruments main String resonance music String resonance occurs on string instruments . Strings or parts of strings may resonate ... more details
A secular resonance is a type of orbital resonance . Secular resonances occur when the precession precession of planetary orbits precession of two orbits is synchronised a precession of the perihelion , with frequency g, or the ascending node , with frequency s, or both . A small body in secular resonance with a much larger one e.g. a planet will precess at the same rate as the large body. Over relatively short time periods a million years, or so a secular resonance will change the Eccentricity orbit eccentricity and inclination of the small body. The effects of secular resonances are most studied in the context of the long time evolution millions of years or more of minor planet orbits within the asteroid belt . One can distinguish between linear secular resonances between a body and a single other large perturbing body e.g. a planet , such as the &nu sub 6 sub g g sub 6 sub secular resonance between asteroid s and Saturn and nonlinear secular resonances , which are higher order resonances, usually combination of linear resonanaces such as the z sub 1 sub g g sub 6 sub s s sub 6 sub , or the &nu sub 6 sub &nu sub 5 sub 2g g sub 6 sub g sub 5 sub resonances. ref cite journal author V. Carruba title On the V type asteroids outside the Vesta family journal Astronomy & Astrophysics year 2005 volume 441 pages 819 doi 10.1051 0004 6361 20053355 bibcode 2005A&A...441..819C arxiv astro ph 0506656 author separator , display authors 1 last2 Michtchenko first2 T. A. last3 Roig first3 F. last4 Ferraz Mello first4 S. last5 Nesvorn first5 D. issue 2 ref &nu sub 6 sub resonance A prominent example of a linear resonance is the &nu sub 6 sub secular resonance between asteroid s and Saturn . Asteroids which approach it have their eccentricity slowly increased until they become mars crossing ... encounter with Mars . This resonance forms the inner and side boundaries of the asteroid belt ... resonance Asteroid belt Category Celestial mechanics it Risonanza secolare sl Sekularna resonanca ... more details
In physics , nonlinear resonance is the occurrence of resonance in a nonlinear system . In nonlinear resonance the system behaviour resonance frequency resonance frequencies and normal mode modes depends on the amplitude of the oscillation s, while for linear system s this is independent of amplitude. Description Generically two types of resonances have to be distinguished linear and nonlinear. From the physical point of view, they are defined by the fact whether or not external force coincides with the natural frequency eigen frequency of the system or not linear and nonlinear resonance correspondingly . The frequency condition of nonlinear resonance reads math omega n omega 1 omega 2 cdots omega n 1 , math with possibly different math omega i omega mathbf k i , math being eigen frequencies of the linear part of some nonlinear partial differential equation . Here math mathbf k i math is a vector mathematics and physics vector with the integer subscripts math i math being indexes into Fourier harmonics or eigenmode s see Fourier series . Accordingly, the frequency resonance condition ... 2010 title Nonlinear Resonance Analysis publisher Cambridge University Press isbn 9780521763608 ref ... , math appearing in various physical applications allows to find the solutions of frequency resonance condition. The set of resonances for given dispersion function and the form of resonance conditions is partitioned into non intersecting resonance clusters dynamics of each cluster can be studied independently at the appropriate time scale . Each resonance cluster can be represented by its NR diagram ... s atmosphere or various wave turbulent regimes in the theory of wave turbulence . Nonlinear resonance ... the shape of the resonance curves of harmonic oscillator s. First of all, the resonance frequency math ... defined by the anharmonic coefficients. Second, the shape of the resonance curve is distorted ... Franz Josef url http monet.physik.unibas.ch elmer pendulum nonres.htm title Nonlinear Resonance ... more details
Giant resonance is a high frequency collective Excited state excitation of atomic nucleus atomic nuclei , as a property of many body quantum systems. In the macroscopic interpretation of such an excitation in terms of an oscillation, the most prominent giant resonance is a collective oscillation of all proton s against all neutron s in a nucleus. 1947, G. C. Baildwin and G. S. Klaiber observed the giant dipole resonance GDR in photonuclear reactions, ref Chomaz, section 2.1 page 5 ref in 1972 the giant quadrupole resonance GQR was discovered, ref Chomaz, section 2.2.1.1 page 14 ref and in 1977 the giant monopole resonance GMR was discovered in medium and heavy nuclei. ref Chomaz, section 2.2.2.1 page 20 ref References Reflist Further reading M. N. Harakeh, A. van der Woude Giant Resonances Fundamental High Frequency Modes of Nuclear Excitation , Oxford Studies in Nuclear Physics, Oxford University Press, USA, July 2001, ISBN 978 0198517337 P. F. Bortignon, A. Bracco, R. A. Broglia Giant Resonances , Contemporary Concepts in Physics, CRC Press, July 1998, ISBN 978 9057025709 External links Chomaz, Ph. http www ist.cea.fr publicea exl doc 00000033058.pdf Collective excitations in nuclei Brink, G. M. http www.mpipks dresden.mpg.de ccm08 Abstract Brink.pdf Giant resonances in excited nuclei http accessscience.com content Giant nuclear resonances 288700 Giant nuclear resonances , AssessScience.com http www.answers.com topic giant nuclear resonance Giant nuclear resonance , Answers.com referring to the McGraw Hill Encyclopedia of Science & Technology cite doi 10.1146 annurev.ns.36.120186.002553 Category Atomic physics nuclear stub de Riesenresonanz uk ... more details
Sympathetic resonance is a harmonic phenomenon wherein a formerly passive string or vibratory body responds to external vibrations to which it has a harmonic likeness. The classic example is demonstrated with two similar tuning forks of which one is mounted on a wooden box. If the other one is struck and then placed on the box, then muted, the un struck mounted fork will be heard. In similar fashion, strings will respond to the external vibrations of a tuning fork when sufficient harmonic relations exist between the respective vibratory modes. A unison or octave will provoke the largest response as there is maximum likeness in vibratory motion. Other links through shared resonances occur at the fifth and third though with less effect. The principle of sympathetic resonance has been applied in musical instruments from many cultures and times. Apart from the basic principle at work on instruments ... is at its highest at the resonance frequency, usually near or below 100 Hz. blockquote Arden Wilken on his website provides a significant example of the power of resonance blockquote An example of proper sympathetic resonance is a windowpane rattling steadily at the very low powerful sound of a bus ... sympathetic resonance at a distance. blockquote Failure of the original Tacoma Narrows Bridge ... in physics textbooks as a classical example of resonance however, this description is insufficient. The catastrophic vibrations that destroyed the bridge were not due only to mechanical resonance ... 1991 , Resonance, Tacoma Narrows Bridge Failure, and Undergraduate Physics Textbooks , American ... resonance String resonance in music instruments main String resonance music String resonance ... progressed a system of Aliquot stringing aliquot scaling to provide sympathetic resonance with the intention ... of maximizing the potential additional resonance of a sympathetically vibrating additional ... Meyer , et al. 2006 . Acoustics Resonance, reverberation and absorption . Oxford University Press ... more details
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