• WordNet 3.6
    • n impingement a sharp collision produced by striking or dashing against something
    • n impingement influencing strongly "they resented the impingement of American values on European culture"
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Webster's Revised Unabridged Dictionary
    • n Impingement The act of impinging.
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Century Dictionary and Cyclopedia
    • n impingement The act of impinging.
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In literature:

His reference to his grandfather's Christmas tree impinged sharply upon The Hopper's conscience.
"A Reversible Santa Claus" by Meredith Nicholson
Is such quick acceptance found now where Easterns and Westerns impinge?
"The Interest of America in Sea Power, Present and Future" by A. T. Mahan
It impinges upon the will by a slow process.
"Preaching and Paganism" by Albert Parker Fitch
Again there is demonstrable evidence that ss-rays impinging on matter may give rise to y-rays.
"The Birth-Time of the World and Other Scientific Essays" by J. (John) Joly
At the edge, where the lasso impinged upon the granite, small particles were breaking and falling ominously.
"The Furnace of Gold" by Philip Verrill Mighels
This discussion has brought me close to a question that is neither aesthetic nor metaphysical but impinges on both.
"Art" by Clive Bell
All the prehistoric cemeteries are of this type, with the graves pressed closely together, so that they often impinge upon one another.
"History Of Egypt, Chaldæa, Syria, Babylonia, And Assyria In The Light Of Recent Discovery" by L.W. King and H.R. Hall
Young people need to see clearly how their homes and their habits in the home impinge on other homes and lives.
"Religious Education in the Family" by Henry F. Cope
It impinged itself upon him, and through him, in a strange and mysterious way.
"The Courage of Marge O'Doone" by James Oliver Curwood
Through a main valve which is perfectly balanced in all steam pressures directly and impinged on the buckets directly from a nozzle.
"The Traveling Engineers' Association" by Anonymous
His career has impinged upon the five great cities of Boston, New Orleans, Philadelphia, London, and New York.
"Modern Eloquence: Vol III, After-Dinner Speeches P-Z" by Various
These impinge with a rapid, direct stroke upon the portion of the body exposed to the action.
"The People's Common Sense Medical Adviser in Plain English" by R. V. Pierce
At each point of impinge it cuts the alluvium away.
"Outlines of the Earth's History" by Nathaniel Southgate Shaler
It did not impinge on his own jealously guarded circle of activity, on his own task of bringing a fugitive to justice.
"Never-Fail Blake" by Arthur Stringer
But suddenly an alien sound impinged on the quietude.
"The Ordeal" by Charles Egbert Craddock
The corner of the raft had impinged against some ice that was piled on the beach.
"Klondike Nuggets" by E. S. Ellis
But he did feel the wave of emotion that welled from her, impinging directly on his empathetic sense.
"Planet of the Damned" by Harry Harrison
But the impingement of the lead must have given the stupid brute an idea that harm was meant.
"The Hunters of the Ozark" by Edward S. Ellis
If the steam jets are so placed that they impinge directly against the tubes, erosion may take place.
"Steam, Its Generation and Use" by Babcock & Wilcox Co.
His hoofs struck the turf without impinging upon it.
"The War Trail" by Mayne Reid

In poetry:

And Bryant's "To a Water-fowl!"
Had praise in every line,
And every word about the bird
Impinged on the divine.
"Birds And Bards" by Franklin Pierce Adams

In news:

Revision of F2582 - 08 Standard Test Method for Impingement of Acetabular Prostheses.
To add an impingement wear test method to the existing standard.
WK39136 Standard Test Method for Impingement of Acetabular Prostheses.
When your shoulder hurts and movement is difficult, and you feel it crack and pop and everything feels like it's rubbing together, it may be shoulder impingement syndrome.
Previously, Sabre Defense rifles and carbines have used the traditional M4 or M16 Direct Gas Impingement System, in which gas is vented from a port in the barrel and channeled back against the bolt carrier, forcing it backward.
Pity the poor CIO, trying your best to get your arms around threatening social media concerns such as data security and confidentiality as this new reality impinges upon enterprise technologies.
A right shoulder impingement has sidelined Tony Gwynn Jr almost totally since the start of spring training.
Phillies' Blanton goes to disabled list with elbow impingement .
Jet Impingement Furnace for Aluminum Heat Treating.
The shoulder impingement syndrome (SIS) is one of the more frequently encountered conditions affecting the shoulder joint.
An optional feature provides high-velocity impingement that develops optimum product color.
Dodgers release vague statement saying the pitcher has an impingement in his hip and is seeking other specialists' opinions.
Posterior ankle impingement syndrome due to os trigonum .
Romney says the President has impinged on our liberties.
Rotary impingement cuts cleaning times, water usage.

In science:

Golec–Biernat and W¨usthoff [151] formulated a dipole model, in which a virtual photon is treated as a q ¯q or q ¯qg system impinging on a proton, and this approach has been further developed by several authors (see e.g. [152] and [153]).
Small x Phenomenology - summary of the 3rd Lund Small x Workshop in 2004
The photons are generated by a type II down-conversion process: a UV pump beam from a diode laser (λ = 406.5nm, power 25mW) impinges on a 1.5mm thick BBO crystal cut at an angle of 43◦ .
Experimental Test of Two-way Quantum Key Distribution in Presence of Controlled Noise
However, it actually requires three step results since the discontinuity at x = 0 receives waves impinging both from the left (the original wave) and from the right (reflected waves at x = L).
Graphene tests of Klein phenomena
The study of cosmic rays impinging on the Earth’s atmosphere challenges our ability to extrapolate fragmentation models from collider energy scales to the region of ultra-high energy cosmic rays.
Introduction to QCD
Pictures are taken beyond the cell by impinging the beams directly onto a CCD detector, (top) with and (bottom) without the atoms.
Coherent Diffusion of Polaritons in Atomic Media
Since no actual waveguide is defined, the medium suspends the expansion of an incoming beam wherever it impinges on the input plane.
Coherent Diffusion of Polaritons in Atomic Media
This situation can be found in quantum-cloning3 and faithful swapping4 experiments. (B) Detecting a photon arriving after a strong pulse : in this scenario (Fig.1(b)) a strong pulse impinges on the detector before the arrival of the photon of interest.
Advantages of gated silicon single photon detectors
In particular, quantum optics allows for fast and relatively efficient detections in the quantum regime, for manipulations by control fields on time-scales much shorter than the system’s typical dynamical time-scales, as well as for efficient input-output interfaces (as for travelling modes impinging on optical cavities).
Feedback control in quantum optics: an overview of experimental breakthroughs and areas of application
One which impinges on much of the work discussed above concerns the accuracy of the quenched approximation .
Recent Progress in Lattice QCD
This approximate doubling of the angular diameter of an extragalactic source viewed through the same medium as a Galactic source results from the much smaller curvature of the extragalactic source’s wavefronts impinging on the ISM and can serve as a potential distance estimator for high-latitude transient sources.
Searches for Fast Radio Transients
The particle goes through the slit impinging on the position sensitive screen behind the slit.
Uncertainty relations on the slit and Fisher information
If one has information on the number of impinging signals, it can therefore be wise to choose the appropriate number of sensors.
Free deconvolution for signal processing applications
Although the Zero-degree Calorimeters will not register a signal for collisions with √sNN < 20 GeV, tracks will impinge on STARs BBCs.
RHIC Critical Point Search: Assessing STAR's Capabilities
First results on the production of pions at large angles with respect to the beam direction for protons of 3 GeV/c, 5 GeV/c, 8 GeV/c and 12 GeV/c impinging on a thin tantalum target have been described.
Results from HARP and their implications for neutrino physics
We present the results for four models exploring different values for the impinging ionizing photon flux (but with otherwise identical parameters), and compare the results in a qualitative way with the observations of HH 555.
Numerical Simulations of HH 555