Results 31 to 40 of about 30,474 (270)
The Log-Expo Inverse Gompertz Distribution: properties and Estimations [PDF]
This paper introduces the Log-Expo Inverse Gompertz Distribution (LET-IG) three-parameter distribution and examines some of its mathematical properties. The study derives the density distribution, reliability function, and hazard rate function.
محمد عبد القادر +1 more
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Modelling the lactation curve of dairy cows using the differentials of growth functions [PDF]
Descriptions of entire lactations were investigated using six mathematical equations. comprising the differentials of four growth functions (logistic. Gompertz, Schumacher and Morgan) and two other equations (Wood and Dijkstra).
Bannink, A. +5 more
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Maximum Life Span Predictions From the Gompertz Mortality Model [PDF]
This study examined maximum life span predictions obtained with the Gompertz mortality rate model, which assumes that there is a constant rate of acceleration in the age-related mortality of adult populations. The influence of population size N on the maximum life span (tmax) was shown to be small, because the numeric impact of N is reduced to ln[ln(N)]
C E, Finch, M C, Pike
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Prediction of Microbial Population in Sorghum Fermentation through Mathematical Models
The mathematical models can be used as a tool in predicting microbial population in sorghum fermentation, either spontaneous fermentation or fermentation with the addition of lactic acid bacteria (LAB) inoculum.
Umi Laila +3 more
doaj +1 more source
The Complexity of Biological Ageing [PDF]
The present review deals with the computer simulation of biological ageing as well as its demographic consequences for industrialized societies.Comment: For Fractal 2004 proceedings, Vancouver; 12 pages of review including 6 ...
Stauffer, Dietrich
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The estimation of genetic parameters for growth curve traits in Raeini Cashmere goat described by Gompertz model [PDF]
The objectives of this study were to describe growth curve of Raeini Cashmere goat applying the Gompertz growth model and genetic evaluation of growth curve-related traits including model parameters of A, B and K, inflection age (IA) and inflection ...
Ghiasi, Heydar +2 more
core +1 more source
Stochastic nonautonomous Gompertz model with Lévy jumps [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhu, Min, Li, Junping, Yang, Xiaoxia
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Transmuted Generalized Gompertz distribution with application [PDF]
This paper introduces the four parameter transmuted generalized Gompertz distribution which includes the transmuted Gompertz, transmuted generalized exponential, transmuted exponential, Gompertz, generalized exponential and exponential distributions as ...
Muhammad Shuaib Khan +2 more
doaj +1 more source
Generating Survival Times to Simulate Cox Proportional Hazards Models [PDF]
This paper discusses techniques to generate survival times for simulation studies regarding Cox proportional hazards models. In linear regression models, the response variable is directly connected with the considered covariates, the regression ...
Augustin, Thomas +2 more
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Slow variation in the Gompertz model
In many differential, single species, population models, the intrinsic model parameters are assumed to be given constants. Typical examples are the ``carrying capacity" and ``rate constant" arising in the logistic model. Such constant parameters usually allow exact solution of the model equations, to completely describe the evolving population. However,
T. Grozdanovski, J. J. Shepherd
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