extinctio相关论文
An ultrahigh pressure ductile shear melange crops out on the beach of Yangkou Bay near Qingdao City. The melange is comp......
,GLOBAL EXISTENCE AND EXTINCTION FOR A DEGENERATE NONLINEAR DIFFUSION PROBLEM WITH NONLINEAR GRADIEN
Existence and extinction in finite time of global weak solutions for the problem (P) are proved....
We investigate the dynamical behavior of hybrid virus infection systems with nonlytic immune response in switching envir......
Foot-and-mouth disease(FMD) is a highly contagious and economically devastating disease of livestock, primarily affectin......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
In this paper, we investigate the dynamics of a stochastic predator-prey model with ratio-dependent functional response ......
对微谐振腔Q值相关机理进行模型分析，提出利用定向耦合原理对微谐振腔和总线波导之间的耦合分析。利用微碟谐振腔的高Q值理论对基于......
本文研究带梯度项的非线性双重退缩抛物方程第一初边值问题解的耗竭性,应用能量方法,我们给出了解在有限时间内耗竭的充分条件.......
利用双波长三通道激光雷达与车载激光雷达,针对2018年3月28日京津冀区域的浮尘天气过程,分别进行了定点垂直观测与车载走航观测,对......
We investigate the dynamical behavior of hybrid virus infection systems with nonlytic immune response in switching envir......
一个光标签的标签扑灭比率和分散赔偿正在交换传播系统优化，它采用 40-Gb/s 回来到调音的零微分阶段移动(RZ-DPSK ) 用 622-Mb/s 振......
本文研究了独立同分布的随机环境中的Ｐ－Ｓ－Ｄ分枝过程，获得了有关过程的渐近性态以及灭绝概率的一些结果。......
对基于半导体光放大器（SOA）的交叉增益调制（XGM）型全光波长转换系统进行了系统设计和实验研究。设计了基于SOA的全光波长转换器的实验......
本文研究了污染的恒化器中，食饵与捕食者的持续生存，分别得到了食饵与捕食者种群持续生存与绝灭的阈值，及两种群共存的一个充分条件。......
本文考虑非自治离散时间单种群模型x(τ+1=一x(τ)expf(τ,x(τ)),其中x(τ)表示种群数量。这里影响种群生长速度的各种因素可以因......
介绍了山西铝厂发电机零序保护的构成特点,通过对发电机区内故障和区外故障时零序电流的分布分析,提出了造成发电机零序保护误动的......
Soybean [Glycine max (L.) Merr.] growth rate and grain yield are modified by the interception and solar radiation use ef......
Hepatitis C virus(HCV) infection is associated with increased thrombotic risk. Several mechanisms are involved including......
