pressure per unit area
41gas permeation unit — (GPU) a CGS unit of gas permeance for membranes, contact lenses, and similar thin materials. Permeance is defined to be the gas flow rate through the material, per unit of area and per unit of pressure difference across the material. The unit… …
42absolute pressure — noun : total pressure at a point in a fluid equaling the sum of the gage and the atmospheric pressures * * * absolute pressure, fluid pressure measured above a vacuum (or above zero pressure) in units of force per unit of area …
43Saturn V Instrument Unit — The Saturn V Instrument Unit is a ring shaped structure fitted to the top of the Saturn V rocket s third stage (S IVB) and the Saturn IB s second stage (S IVB). It was immediately below the SLA (Spacecraft/Lunar Module Adapter) panels that… …
44high-pressure phenomena — ▪ physics Introduction changes in physical, chemical, and structural characteristics that matter undergoes when subjected to high pressure. pressure thus serves as a versatile tool in materials research, and it is especially important in… …
45Engine control unit — An engine control unit (ECU) is an electronic control unit which controls various aspects of an internal combustion engine s operation. The simplest ECUs control only the quantity of fuel injected into each cylinder each engine cycle. More… …
46Pounds per square inch — A pressure gauge reading in psi (red scale) and kPa (black scale) The pound per square inch or, more accurately, pound force per square inch (symbol: psi or lbf/in2 or lbf/in2 or lbf/sq in or lbf/sq in) is a unit of pressure or of… …
47San Francisco Bay Area — Bay Area redirects here. For other uses, see Bay Area (disambiguation). Not to be confused with San Francisco Bay Area Combined Statistical Area. San Francisco Bay Area Common name: San Fran …
48Atlanta metropolitan area — Metro Atlanta redirects here. For the transit agency, see Metropolitan Atlanta Rapid Transit Authority. Metro Atlanta Atlanta Sandy Springs Marietta, Georgia MSA   CSA   …
49Orders of magnitude (area) — An area of one square kilometre consists of 100 hectares each containing 10000 square metres. This page is a progressive and labeled list of the SI area orders of magnitude, with certain examples appended to some list objects. List of orders of… …
50Visual display unit — A visual display unit, often called simply a monitor or display, is a piece of electrical equipment which displays images generated from the video output of devices such as computers, without producing a permanent record. A newer monitor… …
