blast

(redirected from blasted off)
Also found in: Dictionary, Thesaurus, Medical, Legal.

blast

1. 
a. the rapid movement of air away from the centre of an explosion, combustion of rocket fuel, etc
b. a wave of overpressure caused by an explosion; shock wave
2. any of several diseases of plants and animals, esp one producing withering in plants

Blast

 

blasting, supplying air or other gases in industrial heat engineering plants in order to ensure or intensify the physicochemical processes taking place in them. The gas is compressed and supplied by means of blowers and compressors. There are two types of blast: cold blast, in which ordinary air is supplied, and hot blast, in which air is preheated to 1100°-1200°C. The substitution of a hot blast for a cold blast in metallurgy has increased the productivity of furnaces.

Blasts with a constant moisture content, which eliminates the adverse effect of moisture variations in ordinary air on smelting conditions, appeared in the 1940’s. Blasts enriched with oxygen to increase the rate of the smelting process began to be widely used in the 1960’s. The highest blast flow rate is characteristic of blast furnaces in which the average amount of gas supplied is 2 m3/min per cu m of furnace working volume (in modern blast furnaces, 6,000–7,000 m3/min, under a pressure of 0.3–0.5 meganewtons per sq m [MN/m2]). The simultaneous supply to the furnace of oxygen-enriched air and of natural gas not only increases the productivity but also reduces the consumption of coke. An oxygen blast supplied from above at a pressure of 0.9–1.5 MN/m2 and a rate of 300–800 m3/min is used in converter production.

blast

[blast]
(computer science)
To release internal or external memory areas from the control of a computer program in the course of dynamic storage allocation, making these areas available for reallocation to other programs.
(engineering)
The setting off of a heavy explosive charge.
(physics)
The brief and rapid movement of air or other fluid away from a center of outward pressure, as in an explosion.
The characteristic instantaneous rise in pressure, followed by a sudden decrease, that results from this movement, differentiated from less rapid pressure changes.

blast

i. The brief and rapid movement of air or other fluid away from a center of outward pressure, as in an explosion.
ii. The characteristic instantaneous rise in pressure followed by a sudden decrease that results from this movement, differentiated from less-rapid pressure changes.

blast

(1)
BLT, used especially for large data sends over a network or comm line. Opposite of snarf. Usage: uncommon. The variant "blat" has been reported.

blast

(2)
[HP/Apollo] Synonymous with nuke. Sometimes the message "Unable to kill all processes. Blast them (y/n)?" would appear in the command window upon logout.
References in periodicals archive ?
Beijing: China's latest manned spacecraft blasted off with three astronauts onboard on Tuesday on a 15-day mission to an experimental space lab in the latest step towards the development of a space station.
A MASSIVE telescope blasted off into space yesterday on a mission to find Earth-like planets.
A FORMER teacher blasted off into space after a wait of more than 20 years.
At first, even experienced gamers will find themselves often out of position, whiffing on balls and getting blasted off the table by the computer, even on easy mode.
When Way blasted off the ramp and up into the air, gravity pulled him downward.
An Ariane 5 rocket carrying the European Space Agency's Rosetta craft blasted off successfully from French Guiana,at 7.
This then allows the flashing to be efficiently blasted off, according to the company.
THE first 'space tourist' blasted off on his trip of a lifetime yesterday, after US and Russian space officials agreed to go ahead with the launch.
The rocky promontory at the top of the waterfall has long been regarded as one of the most romantic viewpoints in the mountains; its most irregular surfaces were blasted off many years ago, and a wooden handrail was provided.
Moreover, he suspects Eros is a fragment blasted off a much larger body.
John Glenn, 77, and Chiaki Mukai, 46, both payload specialists, blasted off into a clear blue sky at 2:19 p.
A low-cost robot explorer blasted off from Florida yesterday, headed for a year-long mission to probe the moon for minerals and water ice.