Pressure-assisted freezing involves pressurizing up to 2000 atm followed by cooling to below zero.
To ease the strain of this maneuver and to aid breathing, researchers developed a technique called positive pressure breathing, which involves forcing pressurized air into a pilot's lungs through a face mask.
The growing commitment to natural gas faces some headwinds because of continuing concern over the safety of fracking, which involves forcing pressurized fluids into shale formations to fracture the rock and release the gas deposits.
The phase behavior involving these components is an important step regarding the design and optimization of industrial processes based on supercritical conditions, such as biodiesel production and fatty esters fractionation involving supercritical and/or pressurized solvents.
Fracking involves injecting a highly pressurized mixture of water, chemicals, and sand below ground to break apart tight rock formations in order to free up oil or natural gas deposits.
To the Editor: Richard Moe recommends intensive weatherization that involves restoration, insulation and pressurizing homes to detect air leaks.
An air gun is special kind of small arm that hurls projectiles by means of mechanically pressurized air or other means which involves no any chemical reaction.
Fang et al. (1997) fabricated 16 vol.% alumina fibre-reinforced K10Mg85 Al alloy (Al + 10% Mg) matrix composite by gas pressurized liquid metal infiltration technique, which involves preheating of 16% Saffil alumina chopped fibre to 450°C and superheating of the matrix alloy melt to 850°C.
To insure the connections and cells involved in the setup were free of leakage, the entire system was pressurized by CO2 and the pressure of the system was monitored to detect any possible leakage for 24 h.
Head et al. (2003) proposed a model of the magmatic dike emplacement involving attendant cryospheric cracking to fracture the surface and release pressurized groundwater confined beneath the cryosphere.
