In this paper, the effect of populationdispersal and nonlinear incidence rate on the spread of a disease is investigated.
本文主要讨论了种群迁移和非线性发病率对流行病流行情况的影响。
2
It was once assumed that improvements in telecommunications would lead to more dispersal in the population as people were no longer forced into cities.
人们曾经认为，随着人们不再被迫进入城市，电信的发展将导致人口的进一步分散。
3
Natural regeneration and dispersal of artificial S. caseolaris population had more or less occurred, which may increase the structural complexity and stability of the artificial population.