Effects of toxicants on chemostat models
WebThe results show that both impulsive toxicant input and stochastic noise have great effects on the survival and extinction of the microorganisms. Furthermore, a series of numerical simulations are presented to illustrate the performance of the theoretical results. WebMar 9, 2011 · The dynamics of some algal allelopathic competitions taking place in a laboratory chemostat-like environment are analyzed. Our main results concern the global asymptotic stability of some biologically meaningful steady-state solutions and have been obtained by means of limiting systems theory and construction of suitable Liapunov …
Effects of toxicants on chemostat models
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WebApr 1, 2009 · The waste water with toxicant is always input impulsively to a ecological environment. Afterwards, population models with impulsive toxicant input were further researched [14,19,20, 25].... WebNCI's Dictionary of Cancer Terms provides easy-to-understand definitions for words and phrases related to cancer and medicine.
WebApr 10, 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 ... Webinfluence the behavior of toxic trace metals. Metals associated with bacterial prey can be released into the dissolved phase following digestion by a predator, and/or metals can remain in the predator and potentially be transferred to the next level of the food chain. Toxic metal ions in the aqueous phase are also expected to modify the growth
WebThe effects of toxicants on naturally stable two-species communities are studied. Persistence-extinction thresholds are given for populations in the toxicant stressed Lotka-Volterra model of two interacting species. WebThe aim is to find effects of toxicants on the structure and functioning of the ecosystem. The starting point is an unstressed ecosystem model for nutrients, populations, detritus …
WebApr 30, 2009 · The effects of toxicant on the resource-biomass is sometimes greater than the consumer species. It may lead to depletion of resources such as forestry and fertile crop land, and in extreme cases the extinction of species may also occur affecting the bio-diversity of the ecosystem.
WebJan 11, 2024 · This mathematical model's capability to find the population-level effects of toxicants might play a critical part in the accurate assessment of pollutants' risk to rivers … injection machine tonnage calculationWebHarrell E. Hurst, Michael D. Martin, in Pharmacology and Therapeutics for Dentistry (Seventh Edition), 2024 Chemically Related Toxicants. Understanding of chemical … injection macrolaneWebMar 20, 2013 · Theoretical models that examine the environmental fate of a toxicant are available but few mathematical models have been developed that are concerned with the effects of a toxicant on an ecosystem. moana themed 2nd birthdayWebAug 27, 2024 · The results show that the stochastic noise, impulsive dredging, and pulse input on the environmental toxicant play important roles in the extinction of microorganisms. The results also indicate the effective and reliable controlling strategy for water resource management. Finally, numerical simulations are employed to illustrate our results. injection lump treatmentWebThe effects of toxic substances on two microorganisms community in a polluted chemostat environment is studied. The stability analysis of the nonnegative equilibria has been performed. A threshold for the survival or the extinction of populations has ... injection machine processChemostats in research are used for investigations in cell biology, as a source for large volumes of uniform cells or protein. The chemostat is often used to gather steady state data about an organism in order to generate a mathematical model relating to its metabolic processes. Chemostats are also used as microcosms in ecology and evolutionary biology. In the one case, mutation/selection is a nuisance, in the other case, it is the desired process under study. Chem… moana themed cakeWebThe effects of toxic substances on two microorganisms community in a polluted chemostat environment is studied. The stability analysis of the nonnegative equilibria has been … injection magnesium sulfate