- nitrogen ratio
- азотное соотношение
English-Russian dictionary of program "Mir-Shuttle". С.В. Курбатов.. 2015.
English-Russian dictionary of program "Mir-Shuttle". С.В. Курбатов.. 2015.
Carbon to nitrogen ratio — The C/N ratio or Carbon to Nitrogen ratio can, amongst other things, be used in analysing sediments and compost. One importance is the influences the nitrogen availability in soils.C/N ratios in the range 6 8 are usually from marine sources,… … Wikipedia
Nitrogen washout — (or Fowler s method) is a test for measuring dead space in the lung during a respiratory cycle, as well as some parameters related to the closure of airways. Contents 1 Procedure 2 Parameters 3 See also 4 References … Wikipedia
Nitrogen balance — is the measure of nitrogen output subtracted from nitrogen input.[1] Blood urea nitrogen can be used in estimating nitrogen balance, as can the urea concentration in urine. A positive value is often found during periods of growth, tissue repair… … Wikipedia
Nitrogen laser — A 337nm wavelength and 170 µJ pulse energy 20 Hz cartridge nitrogen laser A nitrogen laser is a gas laser operating in the ultraviolet range[1] (typically 337.1 nm) using molecular nitrogen as its gain medium, pumped by an electrical… … Wikipedia
Nitrogen deficiency — A young cabbage plant exhibiting nitrogen deficiency. This is about nitrogen compounds in plant nutrition. For shortage of nitrogen compounds in human and animal nutrition, see protein deficiency. All plants require sufficient supplies of… … Wikipedia
Interstellar nitrogen monohydride — Nitrogen monohydride (NH) is a simple compound that has been detected in interstellar space. Contents 1 History 2 Chemistry 3 Significance 4 See also … Wikipedia
F-ratio — In oceanic biogeochemistry, the f ratio is the fraction of total primary production fuelled by nitrate (as opposed to that fuelled by other nitrogen compounds such as ammonium). This fraction is significant because it is assumed to be directly… … Wikipedia
BUN-to-creatinine ratio — In medicine, the BUN to creatinine ratio, also BUN creatinine ratio, BUN/creatinine ratio or BUN:Cr, is the ratio of two serum laboratory values, the blood urea nitrogen (BUN) and serum creatinine. This terminology is used in the United States.… … Wikipedia
Liquid nitrogen — (liquid density at the triple point is 0.707 g/mL) is the liquid produced industrially in large quantities by fractional distillation of liquid air and is often referred to by the abbreviation, LN2. It is pure nitrogen, in a liquid state. Liquid… … Wikipedia
Blood urea nitrogen — The blood urea nitrogen (BUN) test is a measure of the amount of nitrogen in the blood in the form of urea, and a measurement of renal function. Urea is a substance secreted by the liver, and removed from the blood by the kidneys.PhysiologyThe… … Wikipedia
Isotope-ratio mass spectrometry — Isotope ratio mass spectrometer with gas bench in foreground Acronym IRMS Classification mass spectrometry Other techniques … Wikipedia