Diffusion capacity — Diagnostics MeSH D011653 In biology, diffusion capacity is a measurement of the lung s ability to transfer gases. Oxygen uptake may be limited by diffusion in circumstances of low ambient oxygen or high pul … Wikipedia
gas — gasless, adj. /gas/, n., pl. gases, v., gassed, gassing. n. 1. Physics. a substance possessing perfect molecular mobility and the property of indefinite expansion, as opposed to a solid or liquid. 2. any such fluid or mixture of fluids. 3. any… … Universalium
Gas centrifuge — Diagram of a gas centrifuge. A gas centrifuge is a device that performs isotope separation of gases. A centrifuge relies on the principles of centripetal force accelerating molecules so that particles of different masses are physically separated… … Wikipedia
Gas core reactor rocket — Gas core reactor rockets are a conceptual type of rocket that is propelled by the exhausted coolant of a gaseous fission reactor. The nuclear fission reactor core may be either a gas or plasma. They may be capable of creating specific impulses of … Wikipedia
Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… … Wikipedia
method — The mode or manner or orderly sequence of events of a process or procedure. SEE ALSO: fixative, operation, procedure, stain, technique. [G. methodos; fr. meta, after, + hodos, way] Abell Kendall m. a … Medical dictionary
Electrochemical gas sensor — Electrochemical gas sensors are gas detectors that measure the volume of a target gas by oxidizing or reducing the target gas at an electrode and measuring the resulting current. ConstructionThe sensors contain two or three electrodes,… … Wikipedia
gaseous diffusion — noun : diffusion of gases through a porous barrier at a rate of speed in direct proportion to the weight of the molecules, being used as the basis of a method of separating isotopes (as fissionable uranium 235 from the nonfissionable uranium 238) … Useful english dictionary
Tracer-gas leak testing method — As part of the recommended leak testing methods for nondestructive testing several tracer gas leak testing ones exist among which the methods of choice are: * Helium mass spectrometer or helium leak detection, providing the highest sensitivity *… … Wikipedia
Reaction–diffusion system — Reaction–diffusion systems are mathematical models which explain how the concentration of one or more substances distributed in space changes under the influence of two processes: local chemical reactions in which the substances are transformed… … Wikipedia
