给出根据相轨线方程判断微分方程组存在周期解的方法。
A method by which we can judged that the system of differential equations determined periodical solutions is given.
给出了完整的分支图和各区域上的相轨线结构。结果表明,非对称项引起二重极限环分支和分支曲线的复杂性。
Moreover, a formula for calculating double limit cycle bifurcation is derived. Finally, the complete bifurcation diagrams and phase portraits are obtained.
无刷直流(BLDC)伺服控制,可选的3相换轨取代传统的霍尔效应传感器。
For Brushless DC (BLDC) servo control, optional 3 phase commutation tracks replace the traditional Hall Effect sensors.
虽则低饲粮叨质求给下渗出进程率,但是总卵黑露质露址⒔正在渗进的整丁卵黑量含质相痴轨减少。
Though low feed concentration provide high permeation rate but total protein concentration and individual protein concentration in the permeate decreases considerably.
虽则低饲粮叨质求给下渗出进程率,但是总卵黑露质露址⒔正在渗进的整丁卵黑量含质相痴轨减少。
Though low feed concentration provide high permeation rate but total protein concentration and individual protein concentration in the permeate decreases considerably.
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