若微分动力系统状态的发展演化不仅依赖于系统当前的状态,同时还 依赖于系统在以前的某些时刻甚至某些时间区段的状态,则称此类动力系统为时滞微分动力系统,描写此类动力系统的微分方程(组)称为时滞微分方程(组).由 于时滞微分动力系统在描述客观事物时比常微分动力系统更深刻,更丰富,因而对时滞微分动力系统开展研究有深刻...
A generalized Duffingu2013van der Pol oscillator with nonlinear fractional order damping is introduced and investigated by the residue harmonic homotopy. The cubic displacement involved in fractional operator is used to describe the higher-order viscoelastic behavior of materials and of aerodynamic damping...
2.Neimark-Sacker Bifurcations of Numerical Discretization for Van Der Pol Equation with Two Delays;双时滞van der Pol方程离散格式的Neimark-Sacker分支 3.The act or process of branching out or dividing into branches.分叉分岔或开岔的行动或过程 4.Bifurcations of Homoclinic and Heteroclinic Solutions wit...
4d–f). Using mean nuclear intensity features, perturbations targeting Pol II transcription (AZD4573, triptolide) showed low pairwise silhouette scores, indicating common changes in overall nuclear abundance of the proteins and protein states measured (Fig. 4d). In almost all of the cases, pair...
The Stability and Neimark-Sacker Bifurcation Analysis of a Discrete Predator-Prey System 一类离散的捕食与被捕食系统的稳定性与Neimark-Sacker分岔 2. Neimark-Sacker Bifurcations of Numerical Discretization for Van Der Pol Equation with Two Delays; 双时滞van der Pol方程离散格式的Neimark-Sacker分支 ...
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Centre for Avian Population StudiesMartijn van de PolSovon Dutch Centre for Field OrnithologyHenk van der JeugdCentre for Avian Population StudiesMagali FrauendorfDepartment of Animal EcologyHenk-Jan van der KolkCentre for Avian Population Studies...
44 Paprocki, Jaroslaw POL 2157 1.5 1 0 1.5 160 players4) 3rd Taq-e Bostan Cup 2024The 3rd Taq-e Bostan Cup takes place 13th to 20th September 2024.Event: 3rd Taq-e Bostan Cup 2024 Place: Kermanshah CountryCode: IRI StartDate: Fri 13th Sep 2024 EndDate: Fri 20th Sep 2024 ...
It is proved that there will be a Neimark-Sacker bifurcation at parameter value τh1=τ01+O(h) in the Euler discretization provided that there is Hopf bifurcation at parameter value τ1=τ01 in the van der Pol equation,i. 已知方程在分支参数值τ1=τ01处产生Hopf分支时,证明了其Euler离散...
The Mediterranean basin is abundant in wild edible species with numerous health beneficial effects due to the presence of various bioactive phytochemicals. In the present work, the effect of nitrogen fertilization rates (0 ppm, (N0), 200 ppm (N1), 400 pp