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The Weir formula is a formula used in indirect calorimetry, relating metabolic rate to oxygen consumption and carbon dioxide production. According to original source, it says: [ 1 ] Metabolic rate (kcal per day) = 1.440 (3.9 VO 2 + 1.1 VCO 2 )
A notch weir is any weir where the physical barrier is significantly higher than the water level except for a specific notch (often V-shaped) cut into the panel. At times of normal flow all the water must pass through the notch, simplifying flow volume calculations, and at times of flood the water level can rise and submerge the weir without ...
Antoine Lavoisier noted in 1780 that heat production, in some cases, can be predicted from oxygen consumption [citation needed], using multiple regression.Indirect calorimetry, as we know it, was developed around 1900 as an application of thermodynamics to animal life. [6]
In 1883, Francis completed his calculation standards for water flow rates, now known as the Francis equation or Francis formula, usually used in fluid dynamics in conjunction with calculating weirs. The equation is = / where: Q is the discharge in cubic feet per second over the weir,
The Meir–Wingreen formula or Weir–Wingreen–Jauho formula describes the electric current through an arbitrary mesoscopic system. It was formulated by Yigal Meir and Ned Wingreen, [1] and later extended alongside with Anti-Pekka Jauho. [2] It describes the current using non-equilibriumm Green's functions and Keldysh formalism. [3]
Weir formula This page was last edited on 23 December 2014, at 07:50 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 License ...
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[12] [13] It was also at the Testing Flume that James B. Francis developed his weir formula for measuring the efficiency of turbines, [14] however this formula, though widely used in America, was a point of contention between American and European engineers, with differences of efficiency readings found between the Holyoke flume and ...