Results 181 to 190 of about 574,284 (242)

Computer Program for Constant Pressure or Constant Volume Combustion Calculations in Hydrocarbon-Air Systems

Journal of Engineering for Power, 1977
A complete Fortran-II computer program is presented which can be used to compute the equilibrium composition and final state of the products after constant pressure or constant volume combustion in any hydrocarbon-air system.
D. D. Agrawal, C. P. Gupta
openaire   +1 more source

An improved computer program for the computation of formation constants from potentiometric data

Inorganica Chimica Acta, 1976
Abstract An improved version of the computer program MINIQUAD is described. The new program, MINIQUAD 75, is faster by a factor of 2–3 and more reliable in extreme cases. The programs are compared on a benchmark consisting of eight chemical problems.
P. Gans, A. Sabatini, A. Vacca
openaire   +1 more source

A desk computer program for the calculation of rate constants

Reaction Kinetics and Catalysis Letters, 1984
A desk computer program has been written in BASIC programming language to optimize the values of rate constants determined from kinetic measurements of time and concentration data. The program is capable of the simultaneous refinement of a maximum of 5 rate constants. A FORTRAN version using the Gear method is also available.
F. Gaizer, Gy. Bazsa, A. Puskás, I. Horváth   +3 more
openaire   +1 more source

Computer program of calculation method for a constant-environment calorimeter

Thermochimica Acta, 1987
Abstract A computer program (in BASIC) for the determination of heats of solution and reaction in a constant-environment calorimeter has been developed. Particular attention was paid to the choice of parameters such as K / C and the endpoint of a generic calorimetric reaction in solution.
F. Rodante, R. Rosati
openaire   +1 more source

A computer program for determination of thin films thickness and optical constants

Applied Surface Science, 2005
A computer simulation program for processing transmission spectra of amorphous optical thin films deposited on weakly absorbing substrates and evaluation of the refractive index n, extinction coefficient k and thickness d was developed. The computer code is the implementation of an optical characterisation algorithm based on the determination of the ...
CARICATO, Anna Paola, FAZZI A., LEGGIERI, Gilberto   +2 more
openaire   +1 more source

Introduction to computer use: Programs for first order rate constants

Journal of Chemical Education, 1965
This article presents a simple but versatile computer program for the calculation of first order and pseudo-first order rate constants and least squares.
Joseph Casanova, E. R. Weaver
openaire   +1 more source

A critical comparison of computer programs for the potentiometric determination of stability constants

Analytica Chimica Acta, 1986
Abstract The performance of five of the best-known computer programs LETAGROP, SCOGS, MINIQUAD, SUPERQUAD and ESTA, is critically discussed. All these programs are based on least-squares refinement procedures but differ in some important aspects: (a) the definition of the residuals function; (b) the minimization procedure; (c) the statistical and ...
E. Casassas, R. Tauler, M. Filella
openaire   +2 more sources

Computer Program for Determining Optical Constants of a Film on an Opaque Substrate

Applied Optics, 1969
Abstract : A computer program is described that determines the optical constants of silver sulfide tarnish films on an opaque silver substrate. The program uses data from normal incidence reflectance measurements taken on two films of different thickness on silver. The sulfide film thickness were measured ellipsometrically.
J M, Bennett, M J, Booty
openaire   +2 more sources

MKVPCI: a computer program for Markov models with piecewise constant intensities and covariates

Computer Methods and Programs in Biomedicine, 2001
We present a computer program for fitting Markov models with piecewise constant intensities and for estimating the effect of covariates on transition intensities. The basic idea of the proposed approach is to introduce artificial time-dependent covariates in the data to represent the time dependence of the transition intensities, and to use a modified ...
A, Alioum, D, Commenges
openaire   +2 more sources

Program PKAS: a novel algorithm for the computation of successive protonation constants

Canadian Journal of Chemistry, 1982
A new algorithm for the simultaneous determination of any number of protonation constants from potentiometric equilibrium data is described. This algorithm is characterized by a unique approach to the internal refinement of the constants and by the analytical nature of the numerical analysis whereby minimization is sought and achieved on the residuals
Ramunas J. Motekaitis, Arthur E. Martell
openaire   +1 more source