Mathematical model - von Bertalanffy growth function (VBGF)
Mathematical Modelling of Population Growth: The Case of Logistic and Von Bertalanffy Models
... theoretical mathematical aspects of the known predator-prey problem are considered by relaxing the assumptions that interaction of a predation leads to little or no effect on growth of the prey population ...
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Likelihood Methods for Basic Stratified Sampling, with Application to Von Bertalanffy Growth Model Estimation
... This paper mainly addresses maximum likelihood estimation for a re- sponse-selective stratified sampling scheme, the basic stratified sampling (BSS), in which the maximum subsample size in each stratum is fixed. We ...
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A Two Step Growth Curve: Approach to the von Bertalanffy and Gompertz Equations
... to model individual growth of marine ...(e.g. von Bertalanffy) and sigmoidal ...the growth curves are not mutually exclusive but that either may arise from a simple three-stage ...
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Table 1. Von Bertalanffy growth parameters and length-weight relations for red snapper
... (SS3) model (SEDAR 31 ...base model and all of the sensitivity models examined, except a sensitivity model using a high natural mortality rate for age-0 and age-1 ...individuals. Model results ...
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A Mathematical Model Related to a Family Growth
... rate function when couples continue child bearing till a male child lives the first two years of ...generating function of the probability distribution of the number of children born to couples when they ...
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Mathematical Model and Parameter Estimation for Tumor Growth
... objective function in an unconstrained nonlinear ...objective function is differentiable, but in that case we are ignoring the useful information about the first and second ...
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A multiscale mathematical model of tumour invasive growth
... ECM initial condition. To investigate what effect do different ECM initial con- ditions have on the whole dynamics of the model, we apply the same threshold function for both homogeneous and heterogeneous ...
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Urban Smart Growth Mathematical Model and Application
... We chose Bordeaux, a developed country city located on the coast, to collect data on the city’s indicators. Due to the different nature of the collected data, some are positive data and some negative data. Therefore, we ...
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A Generalization of the Exponential Function to Model Growth
... NTRODUCTION Growth curves are monotonically increasing functions over ...negative growth, they can also be monotonically decreasing functions. Growth curves are of interest in a variety of fields, ...
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Mathematical Model Research on Contribution of Higher Education to Economic Growth
... production function and least square method to establish a mathematical model of the relationship between education and economic growth, and concludes the following conclusion: The rate of ...
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A weak-inertia mathematical model of bubble growth in a polymer foam
... bubble growth rate increases as ...a function-wise iteration and would require several more iterations to produce a reasonable approximation over a larger domain ...
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Mathematical Studies of Optimal Economic Growth Model with Monetary Policy
... MIU model. Conveniently enough, Matlab has this useful function ode15s that allows us to numerically solve for solutions of a system of Di↵erential Algebraic ...
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A mathematical model of tumor growth and its response to single irradiation
... model parameters. If these parameters can be diagnostically obtained before the treatment, we should be able to design a patient-specific treatment by adjusting the treatment parameter, that is, the radiation dose ...
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A multi-scale mathematical model for simulating and optimising the growth of Bambara groundnut
... influence model described by Cournede et ...based model that describes crop scale. Here, both the growth of individual plants and interactions between them is addressed and aggregated to the many ...
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Mathematical analysis of a model for the growth of the bovine corpus luteum
... ODE model for the growth of the bovine corpus luteum (CL), an organ responsible for progesterone production during ...vessel growth from existing ones, is crucial for CL growth, and inadequate ...
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THE MATHEMATICAL ISOPLETH MODEL FOR FUNGI GROWTH IN BUILDING MATERIAL
... the mathematical isopleths model for the growth of fungal mycelium in building ...fungal growth is one of the first signs of biological growth linked to relative humidity and ...
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Mathematical model of cancer growth controled by metronomic chemotherapies*
... tumor growth and distant metastasis [23, ...tumor growth primarily through anti-angiogenic mechanisms while significantly reducing undesirable toxic side ...
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Mathematical analysis for tumor growth model of ordinary differential equations
... Introduction Heat is a form of energy in transit due to a temperature difference (Rathore & Raul R. A. Kapuno, 2011). This variation in temperature is governed by the principle of energy conservation, which when applied ...
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Gender Differences in Growth in Mathematical Skills During Secondary Grades: A Growth Model Analysis
... In this study gender differences were determined for initial (grade 7) status and for rate of growth in each of the three domains of mathematical skills described above.. The analyses [r] ...
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Bertalanffy-Funktion und Ford-Walford-Formel
... gegebenenfalls eine noch bessere Ann~iherung an die MeBdaten zu erreidaen. Auf die- sem Wege konnte die mittlere quadratische Abweichung von den Daten des gegebenen [r] ...
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