-
1 растворенный кислород
растворенный кислород
—
[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
dissolved oxygen
The amount of oxygen dissolved in a stream, river or lake is an indication of the degree of health of the stream and its ability to support a balanced aquatic ecosystem. The oxygen comes from the atmosphere by solution and from photosynthesis of water plants. The maximum amount of oxygen that can be held in solution in a stream is termed the saturation concentration and, as it is a function of temperature, the greater the temperature, the less the saturation amount. The discharge of an organic waste to a stream imposes an oxygen demand on the stream. If there is an excessive amount of organic matter, the oxidation of waste by microorganisms will consume oxygen more rapidly than it can be replenished. When this happens, the dissolved oxygen is depleted and results in the death of the higher forms of life. (Source: PORT)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Русско-немецкий словарь нормативно-технической терминологии > растворенный кислород
См. также в других словарях:
Stream function — The stream function is defined for two dimensional flows of various kinds. The stream function can be used to plot streamlines, which represent the trajectories of particles in a steady flow. Streamlines are perpendicular to equipotential lines.… … Wikipedia
Stokes stream function — In fluid dynamics, the Stokes stream function is used to describe the streamlines and flow velocity in a three dimensional incompressible flow with axisymmetry. A surface with a constant value of the Stokes stream function encloses a streamtube,… … Wikipedia
Stream restoration — is a term used in the United States to describe a set of activities that help improve the health of a river or stream. Improved health may be indicated by expanded habitat for diverse species (e.g. fish, aquatic insects, other wildlife) and… … Wikipedia
Stream processing — is a computer programming paradigm, related to SIMD, that allows some applications to more easily exploit a limited form of parallel processing. Such applications can use multiple computational units, such as the floating point units on a GPU,… … Wikipedia
Stream cipher — The operation of the keystream generator in A5/1, a LFSR based stream cipher used to encrypt mobile phone conversations. In cryptography, a stream cipher is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher… … Wikipedia
Stream X-Machine — The Stream X machine (SXM) is a model of computation introduced by Gilbert Laycock in his 1993 PhD thesis, The Theory and Practice of Specification Based Software Testing .Gilbert Laycock (1993) The Theory and Practice of Specification Based… … Wikipedia
Stream Processors, Inc — Infobox Company company name = Stream Processors Incorporated (SPI) company company type=Private foundation = 2004 location=455 DeGuigne Drive Sunnyvale, California flagicon|USA USA key people =Bill Dally, Co Founder and Chairman Chip Stearns,… … Wikipedia
Stream bed — The bed of this stream is armored with rocks, some very rounded (having had a longer life in the stream) and some not. A stream bed is the channel bottom of a stream, river or creek; the physical confine of the normal water flow. The lateral… … Wikipedia
stream profile — The elevation of the main stream bed as a function of distance from outflow … Lexicon of Cave and Karst Terminology
function — Fluent Flu ent, n. 1. A current of water; a stream. [Obs.] [1913 Webster] 2. [Cf. F. fluente.] (Math.) A variable quantity, considered as increasing or diminishing; called, in the modern calculus, the {function} or {integral}. [1913 Webster] … The Collaborative International Dictionary of English
Harmonic function — In mathematics, mathematical physics and the theory of stochastic processes, a harmonic function is a twice continuously differentiable function f : U rarr; R (where U is an open subset of R n ) which satisfies Laplace s equation,… … Wikipedia