Results 251 to 260 of about 4,650,966 (303)
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On the Convergence of Stability Constants
SIAM Journal on Numerical Analysis, 1986The stability constants of finite difference schemes approximating linear mth order integro-differential equations are shown to converge to their continuous counterparts.
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Piecewise-Constant Stabilization
SIAM Journal on Control and Optimization, 1999With the help of topological necessary conditions for continuous stabilization it is shown that, in general, in order to stabilize continuous- and discrete-time systems one has to use time-dependent or discontinuous feedback controls. On the other hand, the criterion of stabilization in the class of piecewise-constant feedbacks is established.
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The stability constant of Pd-EDTA
Talanta, 1978The literature value of the stability constant of the palladium-ethylenediaminetetra-acetate complex (log K(Pd-EDTA) = 18.5), is open to question. From replacement experiments with thorium a value log K(Pd-EDTA) = 26.4 has been found. This value is in better agreement with experimental facts from protonation studies at low pH and with the fact that ...
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The comparison of stability constants
Journal of Chemical Education, 1968In some texts, the stability of complexes with polydentate ligands is done incorrectly by comparing the numerical value of the stability constant with the numerical value of the overall constant of...
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Stability Constants and Their Measurement
1996The equilibrium constant involving the formation of a metal complex from the aquo metal ion and the most basic form of the ligand is a standard measure of the effectiveness of the ligand in coordinating metal ions. The constants involved are called stability constants or formation constants.
Arthur E. Martell, Robert D. Hancock
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Stability constants of aluminium fluoride complexes
Talanta, 1971Pointwise titrations of aluminium nitrate solutions with sodium fluoride were made at ionic strengths of 0.5, 0.2, 0.1 and 0.05M and at temperatures of 25 degrees and 37 degrees . The total Al(3+) concentration was kept constant at 5 x 10(-4)M and the total F(-) concentration covered the range 5-20 x 10(-4)M with a minimum of 20 points per titration ...
R P, Agarwal, E C, Moreno
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Conditional Stability Constants
2012The introduction of conditional stability constants permits us, from a theoretical standpoint, to treat a complexation equilibrium to which are superimposed other equilibria of any nature as if it were alone, at least in some conditions. Conditional stability constants were introduced by G.
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On an Absolute Constant in the Theory of Variational Stability
American Journal of Mathematics, 1937this equation being the characteristic equation of a real binary linear substitution of determinant 1. If A is not a multiple of Tiri, it is clear that the two solutions (2) are linearly independent. If X is a multiple of Tiri, it depends on the elementary divisors of that binary substitution whether or not the general solution of (1) is free of ...
van Kampen, E. R., Wintner, Aurel
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Stability constants of some metal dithizonates
Talanta, 1973The overall stability constants of electroneutral dithizonates of bismuth, cadmium, cobalt(II), copper(II), iron(II), lead(II), manganese(II), mercury(II), nickel, palladium(II), silver, tin(II) and zinc were determined by means of stoichiometric dilution in aqueous solution stabilized by hydroxylamine hydrochloride, at pH 5.50-10.02.
B W, Budesinsky, M, Sagat
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Stability constant for the zinc-dithiothreitol complex
Analytical Biochemistry, 1972Rat liver histidase is competitively inhibited by a variety of compounds that are good complexing agents for Zn+2. Dithiothreitol is a strong competitive inhibitor, but 20 μM Zn+2 completely reverses the inhibitory action of 1.7 mM dithiothreitol. Effectiveness of inhibitors is directly related to the stability constants (Kst) for the corresponding ...
N W, Cornell, K E, Crivaro
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