Results 101 to 110 of about 24,216,701 (241)

Controlling evolutionary dynamics to optimize microbial bioremediation

open access: yesEvolutionary Applications, 2020
Some microbes have a fascinating ability to degrade compounds that are toxic for humans in a process called bioremediation. Although these traits help microbes survive the toxins, carrying them can be costly if the benefit of detoxification is shared by ...
Shota Shibasaki, Sara Mitri
doaj   +1 more source

Annotated chemostat model.

open access: yes
Chemostat model describing the change in concentrations of gelatin substrate (S), degradation product of the substrate (P), protease enzyme produced by the cooperator (E), the enzyme-producing bacterial cooperator (X1), and the bacterial cheater which ...
Patrick De Leenheer (18340054)   +2 more
core   +1 more source

A delayed chemostat model with general nonmonotone response functions and differential removal rates

open access: yes, 2006
A chemostat model with general nonmonotone response functions is considered. The nutrient conversion process involves time delay. We show that under certain conditions, when n species compete in the chemostat for a single resource that is allowed to be ...
Wang, Lin, Wolkowicz, Gail S.K.
core   +1 more source

Stochastic Models for the Chemostat

open access: yes, 2011
The chemostat is classically represented, at high popula- tion scale, as a system of ordinary differential equations. Our goal is to establish a set of stochastic models that are valid at different scales. At a microscopic scale we present a pure jump stochastic model that gives rise, at the macroscopic scale, to the ordinary differential equation ...
Campillo, Fabien   +2 more
openaire   +2 more sources

Stability and bifurcation analysis of a modified chemostat model

open access: yesDemonstratio Mathematica
In this work, we derive a discrete-time chemostat model from a continuous-time population model using the forward Euler method. We first determine the model’s fixed points and analyze their local stability.
Büyükkahraman Mehtap Lafci
doaj   +1 more source

Flux variability analysis for model simulations in light-limited and ammonium-limited chemostat conditions.

open access: yes, 2012
Flux variability analysis for model simulations in light-limited and ammonium-limited chemostat conditions.
Grigoriy E. Pinchuk (173083)   +11 more
core   +1 more source

Dynamical analysis of chemostat models incorporating variable yield coefficient and substrate inhibition with recycling process [PDF]

open access: yes, 2021
This research analyses chemostat models for microbial production. Chemostat is a tool that can be used for the continuous production of microbes under controlled conditions such as pH, temperature, light, and nutrients.
Mohd Sadiq, Ummalaisha Farhana
core  

Hopf Bifurcation Analysis for the Model of the Chemostat with One Species of Organism

open access: yesAbstract and Applied Analysis, 2013
We research the dynamics of the chemostat model with time delay. The conclusion confirms that a Hopf bifurcation occurs due to the existence of stability switches when the delay varies.
Haiyun Bai, Yanhui Zhai
doaj   +1 more source

On the Study of Chemostat Model with Pulsed Input in a Polluted Environment

open access: yesDiscrete Dynamics in Nature and Society, 2007
Chemostat model with pulsed input in a polluted environment is considered. By using the Floquet theorem, we find that the microorganism eradication periodic solution is globally asymptotically stable if the impulsive period T is more than a critical ...
Zhong Zhao, Xinyu Song
doaj   +1 more source

Crowding effects promote coexistence in the chemostat

open access: yes, 2006
This paper deals with an almost-global stability result for a particular chemostat model. It deviates from the classical chemostat because crowding effects are taken into consideration.
De Leenheer, Patrick   +2 more
core   +1 more source

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