Dynamic Behaviors of a Nonautonomous Discrete Predator-Prey System Incorporating a Prey Refuge and Holling Type II Functional Response

A nonautonomous discrete predator-prey system incorporating a prey refuge and Holling type II functional Incubators response is studied in this paper.A set of sufficient conditions which guarantee the persistence and global stability of the system are obtained, respectively.Our results show that if refuge is large enough then predator species will

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Engineering Method for Calculating Temperature Deformations of PVC Window Profiles with a Reinforcing Steel Core

In current engineering practice, static calculation of windows for temperature loads is not performed.However, the existing experience in operating PVC windows in environmental conditions of Eastern and Northern Europe shows that the temperature deformation of such structures can reach values comparable to those of wind loads, which leads to a sign

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