compression ratio

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Related to compression ratios: Lossy compression, Lossless compression

compression ratio

n.
In an internal-combustion engine, the ratio of the volume of the combustion chamber measured before and after a compression stroke.

compression ratio

n
(Automotive Engineering) the ratio of the volume enclosed by the cylinder of an internal-combustion engine at the beginning of the compression stroke to the volume enclosed at the end of it
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Commonly used implementations of JPEG (there are twenty-nine total) use reduction of precision combined with other data encoding techniques to achieve compression ratios up to 100:1.
Also, the universal screw, which has a 1:1 compression ratio, is said to have nearly as high outputs for HMW-HDPE as screws with negative compression ratios of 3:1 or 4:1.
NASDAQ:CMTL) that develops technology for the communications, networking and data storage markets, today announced the introduction of its GZIP Data Compression Board (the AHA363-PCle), which allows for the highest GZIP data compression ratios on the market.
Higher compression ratios offer greater efficiency; lower ratios enable greater performance
The present investigation is to throw light on the performance and exhaust emission phenomena of a compression ignition engine using ethanol-diesel-biodiesel blends under various compression ratios.
2006) examined the maximum compression ratios of eastern white pine (Pinus strobus L.
Different size samples and different compression ratios can be applied.
Burning lean fuel mixtures at high compression ratios and nearly constant volume combustion results in high efficiency.
5 Gbits/sec throughput via hardware, while achieving compression ratios comparable to high effort (level 9) GZIP software.
Using specimens with various compression ratios, tension tests were conducted for measuring Young's modulus in the radial and tangential directions and Poisson's ratio on the cross section, whereas asymmetric four-point bending tests were conducted for measuring the shear modulus on the cross section.
2) Incorporating a new algorithm that improves compression ratios by more than 10 times(3), Citrix's multi-level compression enables WANScaler 8000 to automatically select the optimal compression scheme for specific applications, data flows and network bandwidths, resulting in maximum performance and efficiency.
Screws are available in many designs, including constant depth variable pitch and different pitch compression ratios, depending on the material and the processing needs of the particular extrusion application.