A continuous age-structured population model with two population groups, juveniles and adults, and with a dynamics for the resource, is considered. The only density dependence is through a uniform increase of the death rates. A complete description of the asymptotic behavior of the population dynami
An age-structured fish population model with coupled size and population density
β Scribed by MichaelE. Fisher
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 74 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0895-7177
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β¦ Synopsis
The paper presents problems, methods and results concerned with the stochastic modelling of fatigue damage of materials. First, the physical and engineering origins of the fatigue phenomenon are briefly outlined. After that, the main existing approaches to random fatigue problems and the models proposed are described in such a way as to show their mathematical structure and usefulness for engineering practice.
π SIMILAR VOLUMES
The instabilities of the equilibria of a class of time discrete population growth models are studied. The models describe the growth of one species with age structure, where the survival probabilities are assumed to depend on the total population. Instability occurs when the fecundities or the survi
This paper considers the existence and uniqueness of solutions of an age-structured population model in a spatially heterogeneous bounded environment. The model describes individual organism movement of diffusion and advection in the older life stage but assumes stationarity of individuals in the em