Results 1 to 10 of about 30,188 (257)

Feedback regulation of logistic growth [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
Sufficient conditions are obtained for the global asymptotic stability of the positive equilibrium of a regulated logistic growth with a delay in the state feedback of the control modelled by dn(t)dt=rn(t)[1−(a1n(t)+a2n(t−τ)K)−cu(t)]dn(t)dt=−au(t)+bn(t−τ)
K. Gopalsamy, Pei-Xuan Weng
doaj   +2 more sources

Psi-Caputo Logistic Population Growth Model

open access: yesJournal of Mathematics, 2021
This article studies modeling of a population growth by logistic equation when the population carrying capacity K tends to infinity. Results are obtained using fractional calculus theories.
Muath Awadalla   +2 more
doaj   +2 more sources

Teaching the Logistic Growth Difference Equation Using Spreadsheets [PDF]

open access: yesSpreadsheets in Education, 2010
The logistic growth difference equation is often used in biology to model population growth. The terms that satisfy the difference equation have many remarkable mathematical properties such as exhibiting chaotic behavior. Using spreadsheet modeling tools,
Fred J Rispoli   +2 more
doaj   +1 more source

A new modified logistic growth model for empirical use

open access: yesCommunication in Biomathematical Sciences, 2018
Richards model, Gompertz model, and logistic model are widely used to describe growth model of a population. The Richards growth model is a modification of the logistic growth model. In this paper, we present a new modified logistic growth model.
Windarto Windarto   +2 more
doaj   +3 more sources

An open-ended logistic-based growth function: Analytical solutions and the power-law logistic model

open access: yesEcological Modelling, 2007
An open-ended form of the logistic equation was recently proposed, using a model comprising two differential equations [Thornley, J.H.M., France, J., 2005. An open-ended logistic-based growth function. Ecol. Model. 184, 257-261].
John J Shepherd, J France
exaly   +3 more sources

Giant fluctuations in logistic growth

open access: yes, 2018
International audienceWe analyze the fluctuation of the number of individuals when two competing species, beginning with a few initial individuals, are submitted to a logistic growth. We show that when the total number of individuals reaches the carrying
Houchmandzadeh, Bahram
core   +4 more sources

A Trait-based Investigation of Fungal Decomposition with Machine Learning [PDF]

open access: yesE3S Web of Conferences, 2022
Fungi are of great functional significance in terrestrial ecosystems as the main decomposers. To better understand their decomposing process and population coexistence, we first describe and quantify the decomposition rate, focusing on three traits of ...
Du Shiyi, Zhao Yiran, Tian Bingwei
doaj   +1 more source

Application of Logistic Growth Curve

open access: yesProcedia Engineering, 2015
Efficient design of new processes and products requires not only an effective problem solving, but reliable forecasts of coming and distant changes. Decision making about investments into emerging technologies and strategic planning activities also rely ...
Kucharavy, Dmitry, De Guio, Roland
core   +2 more sources

A Bitcoin price prediction model assuming oscillatory growth and lengthening cycles

open access: yesCogent Economics & Finance, 2022
This article’s motivation is to understand the volatile Bitcoin price increase. The objective is to develop price estimation methods. The methodology is to present five differential equation models estimated against the 23 July 2010–21 June 2021 Bitcoin ...
Guizhou Wang, Kjell Hausken
doaj   +1 more source

Fusing time-varying mosquito data and continuous mosquito population dynamics models

open access: yesFrontiers in Applied Mathematics and Statistics, 2023
Climate change is arguably one of the most pressing issues affecting the world today and requires the fusion of disparate data streams to accurately model its impacts.
Marina Mancuso   +6 more
doaj   +1 more source

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