* Compression ( geology ), a system of forces that tend to decrease the volume of rocks

* Compression ( physical ), the result of the subjection of a material to compressive stress

* Compression ( functional analysis ), the compression of a linear operator " T " on a Hilbert space to a subspace " K " is the operator

* Compression ( phonetics ), running syllables together in informal speech

* Compression – Compression uses a positive lens ( also called a focal reducer ), placed in the converging cone of light before the focal plane of the telescope objective, to reduce overall image magnification.

This method has also been described as ' Negative Pressure Ventilation ' ( NPV ), ' External Chest Wall Oscillation ' ( ECWO ), ' External Chest Wall Compression ' ( ECWC ) and ' External High Frequency Oscillation ' ( EHFO ).

Lossless Transform Audio Compression ( LTAC ) is a compression algorithm developed by Tilman Liebchen, Marcus Purat and Peter Noll at Institute for Telecommunications, Technical University Berlin ( TU Berlin ), to compress PCM audio in a lossless manner, unlike conventional lossy audio compression algorithms ( like MP3 ).

LTAC will not be developed any further since it has been superseded by its successor Lossless Predictive Audio Compression ( LPAC ), which is based on linear prediction.

The engine was renamed the Ford HCS ( standing for High Compression Swirl ), although some internal Ford service publications call it the Valencia-HCS in reference to its heritage.

Compression can travel in ' compression waves ' ( sound waves, for instance ), and rarefaction waves also exist in nature.

* 2, 155 cc turbocharged N9T " Simca Type 180 " engine ( OHC, Bosch LU-Jetronic fuel injection, Compression ratio: ( 7: 1 ) ), producing.

* 2, 155 cc intercooled, turbocharged N9TE " Simca Type 180 " engine ( OHC, Bosch LU-Jetronic fuel injection, Compression ratio: ( 7. 5: 1 ) ), producing 150 hp ( 111 kW ).

* 2, 155 cc intercooled, turbocharged N9TEA " Simca Type 180 " engine ( OHC, Bosch LU-Jetronic fuel injection, Compression ratio: ( 7. 5: 1 ) ), producing 160 hp ( 119 kW ).

* MACE ( codec ), ( Macintosh Audio Compression and Expansion ) an audio encoding system

Vapor Compression Cycle – A: hot compartment ( kitchen ), B: cold compartment ( refrigerator box ), I: insulation, 1: Condenser, 2: Expansion valve, 3: Evaporator unit, 4: Compressor

Video for Windows ( VfW ), also referred to as Video Compression Manager ( VCM ), was a multimedia framework developed by Microsoft that allowed Microsoft Windows to play digital video.

* In 2005, FTSC assigned the Fidonet Technical Standard ( FTS ) status to the binkp protocol, and split the specification into four separate documents: Binkp / 1. 0 Protocol specification ( FTS-1026 ), Binkp / 1. 0 optional protocol extension CRAM ( FTS-1027 ), Binkp protocol extension Non-reliable Mode ( FTS-1028 ), and Binkp optional protocol extension Dataframe Compression ( FTS-1029 ).

Intake ( blue ), Compression ( pink ), Ignition ( red ), Exhaust ( black ).

* The Large Text Compression Benchmark and the similar Hutter Prize both use a trimmed Wikipedia XML UTF-8 data set.

Other impact absorbing systems designed by Fitch are the Fitch Compression Barrier, suited for oval tracks and other such high speed situations with little runoff area, which comprises a set of strong, resilient hollow cylinders about a yard in diameter placed between the guardrail and the wall, gently absorbing the vehicle's energy without bouncing it back onto the track, and the Fitch Displaceable Guardrail where more room is available, a guardrail mounted on skids so that it can slide backwards on impact, gradually capturing the car.

Compression fittings are much more sensitive to these type of dynamic stresses.

( Model A part number suffix was ‑ A, Police Special High Compression head part number suffix was ‑ b, and there was a fairly large letter " B " casting mark about the center of the head.

< tr >< td align = center > Compression ratio </ td >< td align = center > 9. 1 </ td >< td align = center > 8. 0 </ td >< td align = center > 8. 5 </ td >< td align = center > 11. 0 </ td ></ tr >

Compression temperature determines mass flow rate, and discharge temperature determines volume flow and the speed of sound.

Although the term aeon may be used in reference to a period of a billion years ( especially in geology, cosmology or astronomy ), its more common usage is for any long, indefinite, period.

In geology and mineralogy, the term " carbonate " can refer both to carbonate minerals and carbonate rock ( which is made of chiefly carbonate minerals ), and both are dominated by the carbonate ion, CO. Carbonate minerals are extremely varied and ubiquitous in chemically precipitated sedimentary rock.

In various revised editions ( 12 in all, through 1872 ), Principles of Geology was the most influential geological work in the middle of the 19th century, and did much to put geology on a modern footing.

* Dispersion ( geology ), a process whereby sodic soil disperses when exposed to water

* Extension ( geology ), relating to the pulling apart of the Earth's crust and lithosphere

* Eridanos ( geology ), a large river that flowed between forty million and seven hundred thousand years ago from Lapland to the North Sea through where the Baltic Sea is now

In typical geological investigations, geologists use primary information related to petrology ( the study of rocks ), stratigraphy ( the study of sedimentary layers ), and structural geology ( the study of positions of rock units and their deformation ).

* Head ( geology ), a recent near-surface deposits

* Hotspot ( geology ), an area of unusually high volcanic activity

* Matrix ( geology ), the fine-grained material in which larger objects are embedded

* Mensa ( geology ), an extraterrestrial area of raised land

In 1842 he was appointed professor of mineralogy in the university of Dorpat ( Tartu ), and henceforth gave attention to the geology and mineralogy of the Russian Empire.

This comes after the studies of structural geology ( at the reservoir scale ), sedimentary basin analysis, reservoir characterization ( mainly in terms of porosity and permeable structures ).

* Prism ( geology ), a type of sedimentary deposit

* Rock ( geology ), naturally occurring solid aggregate of minerals and / or mineraloid

* Rock ( geology ), naturally occurring solid aggregate of minerals and / or mineraloids

* Shear ( geology ), the response of a rock to deformation usually by compressive stress and forms particular textures

* Tension ( geology ), occurs when a rock is pulled apart in two opposite directions

This branch of structural geology deals mainly with the orientation, deformation and relationships of stratigraphy ( bedding ), which may have been faulted, folded or given a foliation by some tectonic event.

He classified geologic time into primitive ( or primary ), secondary, and tertiary periods based on observations of geology in northern Italy.

The peninsula contains 3 main Sites of Special Scientific Interest ( SSSI ), both noted for their endangered insects and plants, as well as their geology.

* Stock ( geology ), an igneous rock formation

* Period ( geology ), a subdivision of geologic time