نتایج جستجو برای: optimal harvest policy

تعداد نتایج: 633198  

Vijaya Rekha Rekha

In this paper, we have proposed a study on controllability and optimal harvestingof a prey predator model and mathematical non linear formation of the equation equilibriumpoint of Routh harvest stability analysis. The problem of determining the optimal harvestpolicy is solved by invoking Pontryagin0s maximum principle dynamic optimization of theharvest policy is studied by taking the combined h...

Journal: :international journal of mathematical modelling and computations 0
vijaya rekha rekha http://www.annamalaiuniversity.ac.in department of mathematics,annamalai university india assistant professor, department of mathematics, annamalai university.

in this paper, we have proposed a study on controllability and optimal harvestingof a prey predator model and mathematical non linear formation of the equation equilibriumpoint of routh harvest stability analysis. the problem of determining the optimal harvestpolicy is solved by invoking pontryagin0s maximum principle dynamic optimization of theharvest policy is studied by taking the combined h...

2003
Xiaoying Zhang Zhisheng Shuai Ke Wang

In this paper, we established the exploitation of impulsive harvesting single autonomous population model by Logistic equation. By some special methods, we analysis the impulsive harvesting population equation and obtain existence, the explicit expression and global attractiveness of impulsive periodic solutions for constant yield harvest and proportional harvest. Then, we choose the maximum su...

Journal: :EURASIP J. Wireless Comm. and Networking 2015
Fangchao Yuan Shi Jin Kai-Kit Wong Hongbo Zhu

Recent advances in energy-harvesting (EH) technology have enabled the realization of wireless systems composed of rechargeable devices. In this paper, we analyze the problem of maximizing the data transmission for the point-to-point (P2P) wireless communication systems which the transmitter is able to harvest energy from ambient environment. To be more general, we consider the EH optimal proble...

2016
Alex Potapov Evelyn Merrill Margo Pybus Mark A. Lewis

We develop a model of CWD management by nonselective deer harvest, currently the most feasible approach available for managing CWD in wild populations. We use the model to explore the effects of 6 common harvest strategies on disease prevalence and to identify potential optimal harvest policies for reducing disease prevalence without population collapse. The model includes 4 deer categories (ju...

Journal: :CoRR 2013
Baran Tan Bacinoglu Elif Uysal-Biyikoglu

As energy harvesting communication systems emerge, there is a need for transmission schemes that dynamically adapt to the energy harvesting process. In this paper, after exhibiting a finite-horizon online throughput-maximizing scheduling problem formulation and the structure of its optimal solution within a dynamic programming formulation, a low complexity online scheduling policy is proposed. ...

2016
Diwakar Poudel Stein Ivar Steinshamn

This study investigates optimal catch of Barents Sea stocks, namely Northeast Arctic Cod and Capelin in multispecies ecosystem. We solve a multispecies age structured bioeconomic model for predator-prey interaction. Barents Sea stock data from ICES are employed for model application. Among others, we also include sustainability constraint in the model that contributes towards ecosystem based ma...

2005
Christopher J. Costello Stephen Polasky

The combination of a randomly fluctuating environment and dispersal of biological organisms calls into question the adequacy of traditional bioeconomic models, the vast majority of which are both deterministic and aspatial. Perhaps for this reason, economists have been largely silent on recent policy debates surrounding fisheries management in a complex environment. In particular, much of the s...

Lohmander, Mohammadi Limaei, Obersteiner,

  The optimal harvesting policy is calculated as a function of the entering stock, the price state, the harvesting cost, and the rate of interest in the capital market. In order to determine the optimal harvest schedule, the growth function and stumpage price process are estimated for the Swedish mixed species forests. The stumpage price is assumed to follow a stochastic Markov process. A stoch...

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