动力系统

Using the discrete dynamical system determined by the stroboscopic map, an exact 1-periodic solution of the system which is with Beverton-Holt function and the threshold conditions for its stability are obtained.

运用由频闪映射决定的离散动力系统，得到了具 Beverton-Holt 功能函数系统的精确1-周期解，并讨论了它在临界条件下的稳定性。

In this paper, Melnikov's method is used to discuss a dass of equation governed by flickering on catalytic wires and in chemical reactor, the conditions of the existence of subharmonic bifurcation are obtained.

研究一类描述催化反应的flickering现象的动力系统，应用Melnikov方法对三种不同情形分别给出了系统存在次谐分枝的某些充分条件。

The finite difference method is applied to reduce the system of partial differential equations to ordinary differential equations.

采用有限差分方法，将由偏微分方程组描述的空间连续系统约化为由常微分方程组描述的空间离散高维动力系统。

This dissertation presents a systematical study on stability analysis for h...

本文系统地研究了高维时滞动力系统的稳定性。

The phase space reconstruction theory of chaotic dynamic system, in combination of the non-linear reflecting and pan-capacity of neural network, can be used to establish the prediction model; and a kind of new prediction method is suggested to realize the complete tracing of phase point evolution process and to predict "the price nails", whereby improving the prediction accurateness and effectively solving the problem of negative prediction, with the satisfactory results obtained.

采用混沌理论预测系统边际电价针对我国电力市场电价变化特点，利用电价和负荷时间序列的混沌特性，重构准确的电价序列相空间，通过跟踪相空间相邻相点的演化趋势，建立基于快速BP网络的电价预测模型，对我国川渝电网电价进行预测，取得良好效果利用混沌动力系统的相空间重构理论，结合神经网络的非线性映射和泛化能力建立预测模型，提出一种新的预测方法实现了相点演化过程的全局跟踪，对"价格钉"进行预测，提高了预测精度，有效解决了负预测问题，得到满意的结果。

We established the mathematics model of the, whole torpedo thermodynamic propulsion system which adopt unclose cycle form.

建立以涡轮机为发动机的鱼雷热动力系统的数学模型，该系统采用开式循环。

Experimental results contrast to PSO on well known and widely used various nonlinear chaos systems indicate that proposed algorithm is robust and efficient for UPO of discrete chaotic system.

第七章对于一般的离散混沌动力系统的控制问题，考虑到控制混沌是混沌理论走向应用的关键，一方面提出基于EA的控制策略：首先采用EA自适应的找到该混沌系统的不稳定周期点。

Like the system in the upcoming X5 hybrid,developed in ajoint venture with GM,Chrysler,and Daimler,this one will augment the transmission with two electric motors.

就像那个与GM，Chrysler，and Daimler结合研发的即将上市的X5 hybrid上边的混合动力系统，这套系统将会在传东西上边增加两个电动马达。

Amic systems, evaluation and management of designs, systems and control, ergonomics, tensile structures, structural analysis, computer-aided design, applied mechanics.

工业设计及其相关领域的课程：动力系统、设计评估与管理、系统控制、人类工程学、张力结构、结构分析、计算机辅助设计、应用力学。

The robust dissipativity for given supply rate has been studied for uncertain impulsive systems. The dissipativity conditions for such systems are derived by means of storage function method, matrix inequality and dissipativity inequality.

对不确定脉冲动力系统在给定供给率时的鲁棒耗散性进行了研究，利用储存函数法、矩阵不等式以及耗散不等式等方法，得到了不确定脉冲系统的鲁棒耗散性的充分条件。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。