wave front

Definitions

  • WordNet 3.6
    • n wave front (physics) an imaginary surface joining all points in space that are reached at the same instant by a wave propagating through a medium
    • n wave front all the points just reached by a wave as it propagates
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Webster's Revised Unabridged Dictionary
    • Wave front (Physics) the surface of initial displacement of the particles in a medium, as a wave of vibration advances.
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Usage

In literature:

Firing came from a farm in front of us, and then a man came out of it and waved a white flag.
"The New York Times Current History: the European War, February, 1915" by Various
In a little while we had overtaken the front wave, which was still devouring everything.
"Edison's Conquest of Mars" by Garrett Putman Serviss
The Maid's standard was still waving in front of the bulwark.
"The Life of Joan of Arc, Vol. 1 and 2 (of 2)" by Anatole France
At day-break, 3:30 a. m., April 1st, he threw his weight into three waves of assault on the front line and attacked later in the rear.
"The History of the American Expedition Fighting the Bolsheviki" by Joel R. Moore
In front marched a platoon of men bearing torches and waving tri-color flags.
"Edmond Dantès" by Edmund Flagg
Major Prouty sitting in front of the post office waved a hand at her that was comparatively friendly.
"The Fighting Shepherdess" by Caroline Lockhart
We heard the enemy's alarm-guns, and directly the signal flags were waving up and down our front.
"Campaigns of a Non-Combatant," by George Alfred Townsend
In front deep Ebro rolls its mighty waves: No boat, no barge, no raft.
"La Chanson de Roland" by Léon Gautier
Waving the guide back he signed to George to enter, and a moment later Helmar stood in front of the great man.
"Under the Rebel's Reign" by Charles Neufeld
He fought down waves of nausea as the smell of damp, rotting earth rose from his front yard in a gray cloud.
"The Coffin Cure" by Alan Edward Nourse
This was to be the waving of a fire-brand by General Hayes in front of house number two.
"Lights and Shadows in Confederate Prisons" by Homer B. Sprague
In this case, instead of the whole wave being fronted and thrown back, a small portion only is shivered off.
"Fragments of science, V. 1-2" by John Tyndall
Already it was an awesome sight as the waves crashed in foam against its front and rushed shoreward along its black sides.
"Frontier Boys on the Coast" by Capt. Wyn Roosevelt
The occurrence was so amusing that Jack parted the branches in front of his face and waved his hat to Deerfoot.
"Footprints in the Forest" by Edward Sylvester Ellis
In front of the sea, there is a huge ridge, terminating in one summit, bending for a long distance over the waves, {and} without trees.
"The Metamorphoses of Ovid" by Publius Ovidius Naso
The first wave was now well in front, and I was with my right flank team in the second wave.
"Over the top with the 25th" by R. Lewis
Portsmouth is in front, always with moving life on the waves.
"The Voyage Alone in the Yawl "Rob Roy"" by John MacGregor
In her hand she held a small scrap of paper, which she waved about in a frantic manner just in front of my nose.
"Punch or the London Charivari, October 20, 1920" by Various
She took out her fan and waved it slowly in front of her face.
"The Double Four" by E. Phillips Oppenheim
Krannon waved to the guards through the front window, then closed a metal shield over it.
"Deathworld" by Harry Harrison
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In poetry:

Along its front no sabres shine,
No blood-red pennons wave;
Its banner bears the single line,
Our duty is to save.
"The Two Armies" by Oliver Wendell Holmes
When some must go to bear the brunt,
And check the German Kaiser's stunt,
We still can brag, and wave the flag,
But send the British to the front.
"The Canadian Way" by Abner Cosens
But most he loves to front the vale
When waves of warm South-western rains
Have left our heavens clear in pale,
With faintest beck of moist red veins:
"The Thrush In February" by George Meredith
Rear their dark fronts where once was sea;
But I can smile and wait for Him
Who turns the tides so easily,
Fills the spent rock-pool to its brim,
And up from the horizon dim
Leads His bright morning waves again.
"Ebb And Flow" by Susan Coolidge
It should be easy, sure, to find.
Waves close in front, woods close behind,
Green shutters, whitewashed walls;
A little space of rocky ground,
Where climbs the wave, and, round and round
The seagull curves and calls.
"At Shelley’s House At Lerici" by Alfred Austin
Young as the youngest who donned the Gray,
True as the truest that wore it,
Brave as the bravest he marched away,
(Hot tears on the cheeks of his mother lay)
Triumphant waved our flag one day --
He fell in the front before it.
"In Memory Of My Brother" by Abram Joseph Ryan

In news:

Palestinian youth waves a flag in front of Israeli soldiers during a demonstration near Bethlehem .
Just wave a few select items in front of their confused and suspicious eyes, and they will normally focus and charge forward.
Palestinian youth waves a flag in front of Israeli soldiers during a demonstration near Bethlehem.
In Cairo's Nasr City district, a Muslim Brotherhood stronghold, tens of thousands of the president's backers, some of them waving Egyptian flags, rallied in front of a neighbourhood mosque.
Protesters opposing Egyptian President Mohamed Morsi wave national flags and chant slogans during a demonstration in front of the presidential palace in Cairo.
Hamas chief Khaled Meshaal (front L) waves to the crowd as he rides in a car beside senior Hamas leader Ismail Haniyeh (front R) in Gaza Dec. By Nidal al-Mughrabi and Crispian Balmer.
In an orange-and-aqua streak, Ted Ginn bolted up the right sideline in front of his whooping, towel-waving teammates.
ESPN was on the red carpet and in the front row for the 2009 Billabong XXL awards to get all the best drop-in faces and epic tales of surfing little waves.
Hamas chief Khaled Meshaal (front L) waves to the crowd as he rides in a car beside senior Hamas leader Ismail Haniyeh (front R) in Gaza Dec. By Nidal al-Mughrabi and Crispian Balmer.
The first wave of snow fell early Saturday accompanied by a cold front.
Lebanese anti-government protesters wave national flags and chant slogans calling for the resignation of the government in front of the government palace in Beirut, Lebanon , Wednesday, Oct 24, 2012.
Paal Smith-Meyer is waving a BusinessWeek article in front of me about LEGO 's resurgence.
Entertainer Ellen DeGeneres, second from front left, waves as she is introduced, with wife Portia de Rossi, left, Monday before DeGeneres receives the 15th annual Mark Twain Prize for American Humor at the Kennedy Center.
Waves break Oct 31 in front of a destroyed amusement park wrecked by Hurricane Sandy in Seaside Heights, N.J. Hurricane Sandy left a long trail of destruction across the New Jersey shoreline.
Right in front of the shopping center, a large contingent of public school teachers and their supporters were waving signs urging the public to back them in their continuing negotiations fight with Gov Neil Abercrombie.
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In science:

The gauge invariant phase χ is a constant along a wave front.
Paraxial propagation of a quantum charge in a random magnetic field
Propagation of the wave front magnetic field.
Paraxial propagation of a quantum charge in a random magnetic field
Wave fronts in this process are hypersurfaces, where phase is constant.
On the concept of normal shift in non-metric geometry
Thus we obtain direct analogues of H¨ormander’s definition of the distributional wave front set given in .
Microlocal analysis of generalized functions: pseudodifferential techniques and propagation of singularities
While Proposition 3.3 determines the wave front set of u(., t) for fixed t, we are aiming for a complete description of WFg (u) in the cotangent bundle over Ω × R.
Microlocal analysis of generalized functions: pseudodifferential techniques and propagation of singularities
Then the generalized wave front of u is given by [(x0 ,ξ0 )∈WFg (g) Proof.
Microlocal analysis of generalized functions: pseudodifferential techniques and propagation of singularities
Arnold, V. I.: Wave front evolution and equivariant Morse lemma, Comm.
Simple tangential families and perestroikas of their envelopes
Wave-front sensing by use of a Green’s function solution to the intensity transport equation.
Coronographic Methods for the Detection of Terrestrial Planets
Eikonal describes propagation of a wave front of the electromagnetic wave.
General Relativistic Theory of Light Propagation in the Field of Radiative Gravitational Multipoles
Light rays are orthogonal to the wave front and their tra jectories can be easily calculated as soon as the eikonal is known.
General Relativistic Theory of Light Propagation in the Field of Radiative Gravitational Multipoles
Level sets of a solution u are null hypersurfaces which correspond to wave fronts.
Geometric Analysis and General Relativity
We define the generalized Gevrey wave front and give its main properties.
Colombeau generalized Gevrey ultradistributions and their microlocal analysis
Colombeau generalized functions, Gevrey ultradistributions, Gevrey wave front, Microlocal analysis, product of ultradistributions .
Colombeau generalized Gevrey ultradistributions and their microlocal analysis
G s,∞(Ω) ∩ E ′ 3s−1 (Ω) = Ds (Ω) Then, we define the generalized Gevrey wave front of f ∈ G s (Ω), denoted W F s g (f ), and give its main properties.
Colombeau generalized Gevrey ultradistributions and their microlocal analysis
The mapping properties of these FIOs are studied, as is microlocal Colombeau regularity for OIs and the influence of the FIO action on generalized wave front sets.
Generalized Oscillatory Integrals and Fourier Integral Operators
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