Bit-serial architectures have the advantage of high throughput, area efficient multipliers. These multipliers are implemented using shift-add operations [1], with full adders and D flip-flops as building blocks. Multiplication with a constant fixed-point coefficient is commonly used in digital signal processing (DSP) circuits, such as digital filters [2][3]. The design of a constant-coefficient...

In this work, the performance of four electrolyte models for prediction the osmotic and activity coefficients of different aqueous salt solutions at 298 K, atmospheric pressure and in a wide range of concentrations are evaluated. In two of these models, (electrolyte Non-Random Two-Liquid e-NRTL and Mean Spherical Approximation-Non-Random Two-Liquid MSA-NRTL), association between ions of opposit...

Activity is a central concept and quantity in thermodynamics because it unifies the description of several relevant functions and properties as well as it retains the simple logarithm form of the chemical potential. Because the activity is related to the concentration via the activity coefficient, the relationship between the chemical potential and the concentration is then established and the ...

We investigate the long time behaviour of the L-energy of solutions to wave equations with variable speed. The novelty of the approach is the combination of estimates for higher order derivatives of the coefficient with a stabilisation property. 1. Model problem We consider the Cauchy problem utt − a (t)∆u = 0, u(0, ·) = u1 ∈ H (R), Dtu(0, ·) = u2 ∈ L (R) (1.1) for a wave equation with variable...

Mansoori, G.A., 1980. Molecular basis of activity coefficient (Isobaric-isothermal ensemble approach). Fluid Phase Equilibria, 4: 61-69. Through the application of isobaric-isothermal (NPT) ensemble theory, molecular relations for thermodynamic properties of mixtures are derived with pressure and temperature as the independent variables. Use of the NPT-ensemble approach has made it possible to ...

Dear Sir: The statement by Brinley (1968) that for striated muscle fibers from the giant barnacle " . . . one can calculate an activity coefficient for sarcoplasmic sodium of ca. 0.5-0.6 which is not greatly different from what one might expect from a mixed salt solution having the composition of the sarcoplasm (0.65-0.75)" requires some comment. This calculation was made by dividing the averag...

The congruence coefficient was first introduced by Burt (1948) under the name of unadjusted correlation as a measure of the similarity of two factorial configurations. The name congruence coefficient was later tailored by Tucker (1951, see also Harman, 1976). The congruence coefficient is also sometimes called a monotonicity coefficient (Borg & Groenen, 1997, p. 203). The congruence coefficient...

Physical activity questionnaire (PAQ) is the most widely used method for evaluation of physical activity (PA). The aim of this study was to adapt and evaluate reproducibility of a PAQ in Comcáac community of Sonora, Mexico. Adaptation of PAQ was conducted through interviews with key residents. Reproducibility was evaluated applying PAQ twice to 26 persons within 20 or more years old, using Spea...

The congruence between two configurations of points quantifies their similarity. The configurations to be compared are, in general, produced by factor analytic methods which decompose an “observations by variables” data matrix and produce one set of factor scores for the observations and one set of factor scores (i.e., the “loadings”) for the variables. The congruence between two sets of factor...