文章详细信息 关键词： 传染病模型;;脉冲免疫接种;;阶段结构;;全局渐近稳定 [gap=320]Keywords: epidemic model;pulse vaccination;stage-structure;global asymptotic stability
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Stage structure 时期结构
stage-structure model 阶段结构模型
stage structure model 阶段结构模型
three stage structure 三段式结构
multi stage structure 多舞台结构
delayed stage structure 阶段时滞结构
Age and stage structure 年龄和时期结构
By using the persistence theory for infinite dimensional systems,we obtain the uniform persistence of stage-structure system and stability of the boundaryequilibrium and the conditions of permananent and temporary exploiting for the maturepopution.
主要是利用无限维系统持续生存理论，研究了阶段结构的持续生存及边界平衡点的稳定性，得到了对成年种群永久及暂时开发的条件。
参考来源 - 具有阶段结构和比率依赖的捕食系统的研究Chapter 1 mainly focuses on the periodic and almost periodic solutions of a nonautonomous perdator-prey system with stage-structure and cannibalism.
第一章讨论了一类带年龄结构和自相残杀的非自治捕食系统的周期解和概周期解。
参考来源 - 几类微分方程的周期解By using the persistence theory for infinite dimensional systems,we obtain the uniform persistence of stage-structure system and stability of the boundaryequilibrium and the conditions of permananent and temporary exploiting for the maturepopution.
主要是利用无限维系统持续生存理论，研究了阶段结构的持续生存及边界平衡点的稳定性，得到了对成年种群永久及暂时开发的条件。
参考来源 - 具有阶段结构和比率依赖的捕食系统的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
This pape probes to the stage-structure systtm with nonlinear fertility rate, making clear the ample conditions of the systtm's global stability of the equilibriums.
研究具有非线性生育率的阶段结构系统，得到了该系统平衡点全局稳定性的充分条件。
The structure of the carved antler indicates its growth stage was spring or summer.
雕刻鹿角的结构表明其生长期为春季或夏季。
The third and final stage was to lift the entire structure into the air, by which time the hull was also supported from below.
第三个阶段，也是最后一个阶段，是把整个建筑升到空中，这时船体也在下面起支撑作用。
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