optimal harvesting
Optimal harvesting control and dynamics of two species stochastic model with delays
... Taking white noises into account, in this paper, we consider a stochastic delay model of species in two habitants. Theorem . describes sufficient conditions for persistence in the mean and extinction, which are derived ...
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Optimal harvesting strategy based on rearrangements of functions
... of optimal harvesting of a marine species in a bounded domain, with the aim of minimizing harm to the species, under the general assumption that the fishing boats have di ff erent ...aggressive ...
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Optimal harvesting strategies for fisheries : a differential equations approach : a thesis presented in partial fulfillment of the requirement for the degree of Doctor of Philosophy in Mathematics at Massey University, Albany, New Zealand
... an optimal harvesting policy in a stochastic growth ...of harvesting consisted of a …xed one-time set-up cost and a marginal density-dependent harvest ...An optimal harvesting policy ...
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Prey-Predator Model with General Holling Type Response Function and Optimal Harvesting Policy
... selecting harvesting of prey population only and having logistic growth rate for both species with the assumption that the predator has some other source of food except the prey under consideration, which is more ...
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A Fishery Resource Optimal Harvesting Model with Reserved Area having Bird as Predator
... an optimal harvesting policy is given by Pontryagin’s maximum ...system.Optimal harvesting policy has also established using Pontryagin’s maximum ...
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Optimal harvesting control of N species for a nonlinear population system
... the optimal harvesting problem for a class of nonlinear population system with fertility and mortality depending on the population ...the optimal control is carefully verified via Ekeland’s variation ...
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Optimal harvesting and stability analysis in a Leslie-Gower delayed predator-prey model
... In this paper, the properties of Hopf bifurcations in a Leslie-Gower Predator-Prey model with delay in predator’s equation have been studied. We have also investigated optimal harvesting when the ...
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Dynamical analysis and optimal harvesting of a stochastic three species cooperative system with delays and Lévy jumps
... A three-species cooperative system with time delays and Lévy jumps is proposed in this paper. Firstly, by comparison method and inequality techniques, we discuss the stability in mean and extinction of species, and the ...
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Optimal harvesting control for an age-dependent competing population with diffusion
... The optimal harvesting control of age-structured and size-structured single species have been widely studied in the literature ...total harvesting, respectively, in ...to harvesting is a quite ...
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OPTIMAL HARVESTING OF MOOSE IN ALBERTA
... the optimal harvest quotas differed strongly among dif- ferent stage/sex classes with respect to goal B and goal ...intense harvesting of calves and males but a low harvest rate of females, which was in ...
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Forecasting Fish Stock Recruitment and Planning Optimal harvesting strategies by Using Neural Network
... A practical time-scale for sustainability for natural resource management broadly equates to 80–100 years. After that time, it would be difficult for people to imagine what society might be like. Even making predictions ...
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Vol 6, No 10 (2015)
... Keeping the above thing in mind, we propose a fishery model to discuss the effects of primary (low intensity) and secondary (more toxic) toxicant on the stability and harvesting of marine species. The organization ...
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Effects of Over Harvesting and Drought on a Predator Prey System with Optimal Control
... with harvesting have been explored by many researchers, however most of them have put attention on the optimal harvesting guided entirely by economic profits from harvesting [7] ...fact, ...
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Asymptotic harvesting of populations in random environments
... the optimal control is ...the optimal harvesting strategy has to be continuous, in contrast to the bang-bang type optimal strategy we find for a linear yield ...
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Determining optimal policies for sugarcane harvesting in Thailand using bi objective and quasi Newton optimization methods
... of harvesting the residual ...an optimal time of harvesting for sugarcane growers in the north-eastern region of ...the optimal harvesting time in order to maximize the revenue and to ...
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Harvesting of a prey-predator model fishery in the presence of competition and toxicity with two effort functions
... In this paper, we propose in our model the modification of the effort function of the model Y. Louartassi et al. [9]. Our article is organized as follows. In the following section, we show the bournitude of the solutions ...
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Throughput maximization based optimal power allocation for energy harvesting cognitive radio networks with multiusers
... In fact, the former papers [4–7] have only considered point-to-point wireless communications without using CR technology. Recently, some researches have focused on the combination of EH technology and CRN, and dif- ...
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Optimal Linear Control of an Energy Harvesting System
... instances, optimal control of the harvester is ...energy harvesting systems is an active research area and there have been myriads of recent developments in many forms and ...energy harvesting system ...
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An Adaptive Self-powered Piezoelectric Energy Harvesting Circuit and Its Application on Bridge Condition Monitoring
... energy harvesting in the low frequency range below hundred Hertz, at present, most of piezoelectric transducers were made of PZT-5H piezoelectric ceramics for its high effective electro-mechanical coupling ...
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Optimal offline broadcast scheduling with an energy harvesting transmitter
... The problem considered in this paper is an offline prob- lem, where data arrival and energy harvest instants and amounts are assumed to be known in advance. Although this kind of prior information of data and energy ...
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