scavenging

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scavenging

[′skav·ən·jiŋ]
(mechanical engineering)
Removal of spent gases from an internal combustion engine cylinder and replacement by a fresh charge or air.
(metallurgy)
Removal of dissolved gases from molten metal.
(ordnance)
The sweeping out, by a blast of air, of the gaseous products resulting from the firing of a gun.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
edulis butanol fraction is able to scavenge the highly reactive hydroxyl radical through peroxide oxidation unlike in the hydrogen peroxide assay where the ethylacetate fraction inhibits or scavenge hydroxyl radical better than the entire fractions.
This further showed the capability of the extracts to scavenge different free radicals in different systems, indicating that they may be useful therapeutic agents for treating radical related pathological damage.
"Because of the blockade's devastating economic impact, children are being forced to work and scavenge near the fence.
The ability of AN and BC to scavenge hydrogen peroxide radical is shown in Fig.
The chromophore formation was not complete in the presence of VT and CA, which scavenge the NO thus formed from the sodium nitroprusside and hence the absorbance decreases as the concentration of the extracts increases in a dose dependent manner.
The GLA said 40 Bulgarian workers had to scavenge for food in the fields where they worked because Cornwall-based Baltic Work Team Ltd had not paid them.
CDW/CDF1 to CDF4 exhibited equivalent ability to scavenge the nitric oxide and the I[C.sub.50] values are listed in Table 1.
According to Bramble, "Running made us human, at least in the anatomical, sense." Endurance running, unique to humans among primates, probably let our ancestors hunt and scavenge over great distances.
It also is said to have an unusual ability to scavenge sulfur in a compound.
In conjunction with industry representatives, NGML researchers identified two major unaddressed issues that confront engine system designers and operators regarding engine air flow management: 1) how to identify which turbocharger compressor, diffuser, turbine blade set, and nozzle ring will work on which engine; and 2) how to determine the extent to which an engine utilizes air to scavenge exhaust products out of the cylinder.
Thus, the most likely explanation for the current findings is that melatonin's effects were a consequence of its ability to scavenge the *OH and possibly also [H.sub.2][O.sub.2].
"Scavenging films that use iron in the coating can look discolored, and the only way to get iron to scavenge is with moisture, so that often limits processors to packing products that have free water," says Chip Cook, director of business development with Cryovac North America, Duncan, S.C.