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Bromochlorodifluoromethane (BCF), also referred to by the code numbers Halon 1211 and Freon 12B1, is a haloalkane with the chemical formula C F 2 Cl Br. It is used for fire suppression, especially for expensive equipment or items that could be damaged by the residue from other types of extinguishers. [ 1 ]
[15] k 1 is the rate constant for chemical uptake from water at the respiratory surface (L*kg −1 *d −1). [15] C WD is the chemical concentration dissolved in water (g*L −1 ). [ 15 ] k 2 ,k E ,k G ,k B are rate constants that represent excretion from the organism from the respiratory surface, fecal excretion, metabolic transformation, and ...
A relational schema R is in Boyce–Codd normal form if and only if for every one of its dependencies X → Y, at least one of the following conditions hold: [5] X → Y is a trivial functional dependency (Y ⊆ X), X is a superkey for schema R. [5] Note that if a relational schema is in BCNF, then it is in 3NF.
The Biopharmaceutics Classification System (BCS) is a system to differentiate drugs on the basis of their solubility and permeability. [1] This system restricts the prediction using the parameters solubility and intestinal permeability. The solubility classification is based on a United States Pharmacopoeia (USP) aperture.
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The n-octanol-water partition coefficient, Kow is a partition coefficient for the two-phase system consisting of n -octanol and water. [1] Kow is also frequently referred to by the symbol P, especially in the English literature. It is also called n-octanol-water partition ratio. [2][3][4]
The product logarithm Lambert W function plotted in the complex plane from −2 − 2i to 2 + 2i The graph of y = W(x) for real x < 6 and y > −4.The upper branch (blue) with y ≥ −1 is the graph of the function W 0 (principal branch), the lower branch (magenta) with y ≤ −1 is the graph of the function W −1.
3.4%: 3.366 ± 0.007%: Tau τ −: − 1 / 2 + x: x (− 1 / 2 + x) 2 + x 2: 3.4%: 3.367 ± 0.008%: Hadrons: 69.2%: 69.91 ± 0.06%: Down-type quarks d, s, b: − 1 / 2 + 1 / 3 x 1 / 3 x: 3 (− 1 / 2 + 1 / 3 x) 2 + 3 ( 1 / 3 x) 2: 15.2%: 15.6 ± 0.4%: Up-type quarks (* except t) u ...