compression

Definitions

  • 4 Spliced for compression
    4 Spliced for compression
  • WordNet 3.6
    • n compression applying pressure
    • n compression encoding information while reducing the bandwidth or bits required
    • n compression the process or result of becoming smaller or pressed together "the contraction of a gas on cooling"
    • n compression an increase in the density of something
    • ***

Additional illustrations & photos:

Ice plant compression pumps Ice plant compression pumps

Webster's Revised Unabridged Dictionary
  • Interesting fact: As an iceberg melts, it makes a fizzing sound because of the compressed air bubbles popping in the ice
    • Compression (Computers) reduction of the space required for storage (of binary data) by an algorithm which converts the data to a smaller number of bits while preserving the information content. The act of compressing {3}.
    • Compression The act of compressing, or state of being compressed. "Compression of thought."
    • ***
Century Dictionary and Cyclopedia
    • n compression The act of compressing, or the state of being compressed; a condition of being pressed into increased density or closeness: used in both literal and figurative senses.
    • ***
Chambers's Twentieth Century Dictionary
    • n Compression act of compressing: state of being compressed, condensation
    • ***

Quotations

  • Abraham Lincoln
    Abraham%20Lincoln
    “He can compress the most words into the smallest idea of any man I ever met.”
  • Robert Burchfield
    Robert Burchfield
    “The English language is rather like a monster accordion, stretchable at the whim of the editor, compressible ad lib.”
  • John Morely
    John Morely
    “The essence of a quote is the compression of a mass of thought and observation into a single saying.”

Etymology

Webster's Revised Unabridged Dictionary
L. compressio,: cf. F. compression,
Chambers's Twentieth Century Dictionary
L. compressāre, com, together, and pressāre, to press—premĕre, pressum, to press.

Usage

In literature:

Mabel compressed her lips.
"If Winter Comes" by A.S.M. Hutchinson
She stood there with lips compressed, saying nothing, but feeling a strong inclination to cry.
"Abbe Mouret's Transgression La Faute De L'abbe Mouret" by Emile Zola
It has long been inferred that compressive stress in the crust must be a primary condition of these movements.
"The Birth-Time of the World and Other Scientific Essays" by J. (John) Joly
They are too compressed, too briefly allusive.
"Translations of Shakuntala and Other Works" by Kåalidåasa
In this secondary shaft the hoisting apparatus and pumps will be run by means of compressed air.
"Scientific American Supplement, No. 508, September 26, 1885" by Various
The fifteenth point concerns steel in compression in reinforced concrete columns or beams.
"Some Mooted Questions in Reinforced Concrete Design" by Edward Godfrey
And the funny thing about this tea is that it is compressed.
"The Astonishing History of Troy Town" by Sir Arthur Thomas Quiller-Couch
She was silent a moment, with mouth compressed.
"By the Light of the Soul" by Mary E. Wilkins Freeman
Instead of employing the usual method of a shield and compressed air at high pressure, a much speedier device was contrived.
"The New York Subway" by Anonymous
A piston fitted snugly into the tube, by means of which the air could be compressed and the phosphorus ignited.
"Artificial Light" by M. Luckiesh
Archie, with compressed lips, drew himself in, seemed to shrink into a smaller space, and sewed steadily, industrious and dumb.
"The Nigger Of The "Narcissus" A Tale Of The Forecastle" by Joseph Conrad
A brake operated by compressed air.
"The Traveling Engineers' Association" by Anonymous
She compressed her lips and wrinkled her forehead.
"Jane Field" by Mary E. Wilkins Freeman
Carroll's face changed; he compressed his mouth.
"The Debtor" by Mary E. Wilkins Freeman
The heart's action is markedly depressed, and the pulse is soft and compressible.
"Manual of Surgery" by Alexis Thomson and Alexander Miles
She washed and wiped dishes as if in a sort of fury, her thin elbows jerking, her mouth compressed.
"The Portion of Labor" by Mary E. Wilkins Freeman
Still another of Murdoch's favorite schemes was the transmission of power by the use of compressed air.
"A History of the Growth of the Steam-Engine" by Robert H. Thurston
After that they represent only a moist compress.
"Psychotherapy" by James J. Walsh
Milton Derr stood motionless, silent and defiant, with tightly compressed lips, and in his dark eyes a vengeful, half exultant light.
"The Night Riders" by Henry C. Wood
The simplest examples of propellants of the smokeless class are compressed gases.
"Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1" by Various
***

In poetry:

Like Progne, did it feel the stress
And coil of the prevailing words
Close round its being, and compress
Man's ampler nature to a bird's?
"Phoebe" by James Russell Lowell
Few there are without possessing
Some good virtue in their heart,
Whence, beneath love's soft compressing,
As from flowers, sweet perfumes start.
"Reality" by Walter Richard Cassels
The marriage day at length arriv'd,
The Priest bestow'd his blessing:
A clasp of orient pearl fast bound
A zone of amber circling round,
Her slender waist compressing.
"Golfre, Gothic Swiss Tale" by Mary Darby Robinson
Her highest leap had come: with ease
She jumped to reach the Bishop's knees:
Compressing tight her arms and lips,
She sought to jump the Bishop's hips:
Her aim flew at his apron-band,
That he might see and understand.
"Jump-To-Glory Jane" by George Meredith
Ah, what life is here compressed,
Frozen into endless rest!
Down through springing blades and spires,
Down through mines, and crypts, and caves,
Still graves on graves, and graves on graves,
Down to earth's most central fires.
"Resurgam" by Kate Seymour Maclean
"And my ample form much smaller grew,
By the cold compressed to a drop of dew;
Then down I fell, swift as bounding deer,
And knew no more till I fell right here;
But how I became so like a feather
Is problem I can unravel never.
"The Frost On The Window" by Joseph Horatio Chant

In news:

This results in progressively more compression until the system is producing maximum boost.
Development of a 270 Megawatt Compressed Air Energy Storage Project in Midwest Independent System Operator.
Without this valve, compressed-air temperature can fall below the freezing point.
Refrigerated dryers reduce the compressed-air temperature.
Thiel Invests in LightSail Compressed-Air Storage System.
10K 'AirPod' car runs on compressed air .
A car that runs on compressed air , called the AirPod, is being manufactured in the United Kingdom.
Has Conventional Compressed Air Spraying Method Met Its Match.
Compressed air system helps save 'dough' in energy usage.
Compressed Air : Exploring the Need For Temporary Systems.
The compressed air drives the pistons, which turn the vehicle's wheels.
Once compressed, the air is stored in a tank, Cho said.
There's no such thing as too large a compressed air line.
A common error in compressed air systems is line sizes too small for the desired air flow.
A Navistar compressed natural gas truck.
***

In science:

In the first case the density ρ first increases, then reaches a plateau value that depends on the compression speed: the slower the compression, the higher the value.
Aging in a simple model of a structural glass
In a system where the metastable phase is more or less compressible, a finite compressibility acts to reduce a portion of the liquid taking part in the hydrodynamic mass flow and hence the overall kinetic energy, leading to an exponential increase in the quantum nucleation rate.
Effects of hyperons on the dynamical deconfinement transition in cold neutron star matter
The M-H curves in Fig. 1b show that the 5 % compression of the sample along B direction results in the sample texture, which is very similar to that for the single variant martensite with c-axis, which is indeed the easy axis of magnetization, along the compression direction.
Large Magnetic-Field-Induced Strains in Ni-Mn-Ga Alloys due to Redistribution of Martensite Variants
The subsequent compression of the sample along direction A leads to the axial texture reorientation of about 900 , thus the c-axis and consequently the easy axis of magnetization again coincides with a compression direction (see Fig. 1c).
Large Magnetic-Field-Induced Strains in Ni-Mn-Ga Alloys due to Redistribution of Martensite Variants
Compression of Ni2MnGa alloy samples by approximately 5 %, at a temperature lover that the Mf one results in formation of close to one variant martensite structure in which c-axis coincides with compression direction.
Large Magnetic-Field-Induced Strains in Ni-Mn-Ga Alloys due to Redistribution of Martensite Variants
Without loss of generality, suppose that three judges are asked to build extracts of a single article4. As an example, Table 5 shows the weights of the different sentences (note that no compression rate needs to be specified; from the data in the table, one can generate summaries at arbitrary compression rates).
Centroid-based summarization of multiple documents: sentence extraction, utility-based evaluation, and user studies
In Table 10 we show the normalized performance (D) of MEAD, for the six clusters at nine compression rates. MEAD performed better than Lead in 29 (in bold) out of 54 cases. Note that for the largest cluster, Cluster D, MEAD outperformed Lead at all compression rates.
Centroid-based summarization of multiple documents: sentence extraction, utility-based evaluation, and user studies
The Doppler effect generates smaller peaks that are 90 degrees out of phase with the compression mode, and the effect of enhancing the baryon component is to strengthen the compressions relative to the rarefactions because of the baryonic contribution to the gravity .
The Cosmic Microwave Background
When the cluster gas starts to cool, as it must eventually, it will compress by a factor of a few until the cosmic pressure dominates and resists further compression.
The Phenomena of High Energy Astrophysics
When switching off the default compression of the data (table III), one can measure how much it is efficient for the size of file! Without compression, the read time is globally smaller, without changing the classification of the corners.
Twelve Ways to Build CMS Crossings from ROOT Files
However, compression of the exterior zones is quite fast and, after a few seconds, the star is compressed to the canonical radius.
Convection in protoneutron stars and the structure of surface magnetic fields in pulsars
Gravity will tend to compress this baryon-photon fluid, while the radiation pressure will support it against this compression.
Charged-particle decay and suppression of small-scale power
Such a particle slows down when it hits the compressive part of the wave ahead of it (by the mirror effect), and it speeds up if the compressive part hits the particle from behind.
Interstellar Turbulence II: Implications and Effects
The second subsection. ( “Compression of feature vector and recognition”) For compression of feature vectors and selection of main features we used variances based criterion.
Computerized Face Detection and Recognition
Given a datacube D and the compressed datacube S obtained from D by applying the histogram-based compression strategy introduced above, we denote the transformation from D to S by τ , thus S = τ (D).
Estimating Range Queries using Aggregate Data with Integrity Constraints: a Probabilistic Approach
***