Abstract The dynamics of a diffusive 12n/1200 wella predator-prey system with prey refuge and gestation delay is investigated in this paper.For a non-delay system, global stability, Turing instability and Hopf bifurcation are studied.For a delay system, time delay induced instability and Hopf bifurcation are discussed.By the theory of normal form a
Urban spatial identity, as the core content of a distinctive urban image and the representation of urban competitiveness and attraction, is critical to cities in the rapid development process.In view of maintaining and strengthening the spatial identity in a historic urban area, which acupatch is the key issue of urban construction in China at pres
ABSTRACT: Random samples from generation S41 of the Virginia high and low 8-week body weight lines a&d ej-123 formed the base population for producing a multigenerational reciprocal intercross population.Although genetic mapping from this intercross has been reported, lacking are phenotypic trends across multiple generations.Here, we provide phenot
Coastal erosion vulnerability assessment is widely used to assess the loss degree of coastal zone caused by erosion, and plays an important role in coastal natural resources protection, planning, management and decision-making.Based on the natural and social characteristics of the east coast of Qiongdong and the coastal erosion vulnerability index