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The Trans-Gompertz Function: An Alternative to the Logistic Growth Function with Faster Growth
Acta Biotheoretica, 2015The growth characteristics of the recently derived Trans-Gompertz function are compared to those of the Generalized Logistic function. Both functions are defined by one shaping parameter and one rate parameter. The functions are matched at a specified point on the growth curve by equating both the first and second derivatives.
F, Kozusko, M, Bourdeau
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Use of the Gompertz Function for Predicting Corn Leaf Area
Transactions of the ASAE, 1975ABSTRACT ATECHNIQUE was developed to relate the coefficients A, B, and k of the Gompertz function (typical growth function) to environmental factors. Environmental factors consid-ered were maximum and minimum temperatures, rainfall, percent sun-shine, and wind speed.
null C. H. Baker +2 more
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Chebyshev approximation by Gompertz function
Matematychni Metody Ta Fizyko-Mekhanichni Polya, 2022P. S. Malachivskyy +2 more
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Environmental Science & Technology, 2013
Mineralization of (14)C-labeled tracers is a common way of studying the environmental fate of xenobiotics, but it can be difficult to extract relevant kinetic parameters from such experiments since complex kinetic functions or several kinetic functions may be needed to adequately describe large data sets. In this study, we suggest using a two-parameter,
Anders R, Johnsen +4 more
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Mineralization of (14)C-labeled tracers is a common way of studying the environmental fate of xenobiotics, but it can be difficult to extract relevant kinetic parameters from such experiments since complex kinetic functions or several kinetic functions may be needed to adequately describe large data sets. In this study, we suggest using a two-parameter,
Anders R, Johnsen +4 more
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A method of fitting non-symmetric Gompertz functions for characterising malignant growth
International Journal of Bio-Medical Computing, 1977A basic symmetrically asymptotic Gompertz equation was extended to account for more complex growth and life-table data. This extended Gompertz or non-symmetric asymptotic regression equation was found to be suitable for fitting a large variety of data exhibiting growth and experimentally-induced regression effects expressed in the same curve.
E F, Gocka, L J, Reed
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Estimation of genetic (co)variances of Gompertz growth function parameters in pigs
Journal of Animal Breeding and Genetics, 2016SummaryThe objective of this study was to estimate genetic (co)variances for the Gompertz growth function parameters, asymptotic mature weight (A), the ratio of mature weight to birthweight (B) and rate of maturation (k), using alternative modelling approaches. The data set consisted of 51 893 live weight records from 10 201 growing pigs. The growth of
Coyne, J. M. +7 more
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Dynamical Analysis and Big Bang Bifurcations of 1D and 2D Gompertz's Growth Functions
International Journal of Bifurcation and Chaos, 2016In this paper, we study the dynamics and bifurcation properties of a three-parameter family of 1D Gompertz's growth functions, which are defined by the population size functions of the Gompertz logistic growth equation. The dynamical behavior is complex leading to a diversified bifurcation structure, leading to the big bang bifurcations of the so ...
Rocha, J. Leonel +2 more
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The analysis of survival (mortality) data: Fitting Gompertz, Weibull, and logistic functions
Mechanisms of Ageing and Development, 1994Survival functions are fitted to survival data from several large populations. The Gompertz survival function corresponds to exponential mortality rate increases with time. The Weibull survival function corresponds to mortality rates that increase as a power function of time. A two-parameter, logistic survival function is introduced, and corresponds to
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THE "S" CURVES OF A PROJECT AND THE GOMPERTZ FUNCTION
2018An edition of the Association Ambiente e Società with the collaboration of the AICE (Italian Society for Economic Engineering)- A work presented on the AICE 2017 Day held at the FAST in Milan on 11/30 ...
Morelli, Rocco, Lucibello, Pasquale
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On a Piecewise Smooth Gompertz Growth Function. Applications
2023Vesselin Kyurkchiev +3 more
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