离散的

The calculated results of the discrete model accord with the experimental data well. Compared with a simple continual model, the discrete model is true of the characteristic of the flow in manifold systems, and it also shows the availability of the way to use BP neural networks to measure the key coefficient of the discrete model.

通过离散模型计算得出的结果与实验数据符合良好，说明与简化的连续模型相比，离散模型是一种更为符合并联管组流动特性的理论模型，同时也表明了用BP算法来确定离散模型关键系数的有效性。

It make a formally unification between discrete distribution and continuous distribution at the definition of failure rate function.

四。借助广义δ函数，首次提出了离散型分布失效率函数的一种新的定义，这种定义使离散型分布与连续型分布的失效率函数定义在形式上得到统一，这种形式上的统一使得离散型寿命分布中各特征函数之间的关系与连续型寿命分布中各特征函数之间的关系完全相同。

A fixed point of a discrete-time neural network with generalized input-output function and by using the converse theorem of Lyapunov function we study the uniformly asymptotical stability of equilibrium in this discrete-time neural network with variable weight and give some sufficient conditions that guarantee the stability of it.

本文首先介绍了几类离散神经网络模型的由来及其研究概况，利用Schauder不动点原理证明了一类具有广义输入输出函数的离散神经网络模型平衡点的存在性，利用Lyapunov函数逆定理给出了这类离散神经网络模型在时变权值下的一致渐近稳定性的充分条件。

In this paper an optimum design method complex method with mixed discrete variables is discussed with the focus on the optimization design of discrete and continuous variables.

针对工程中大量存在的设计变量为离散型和连续型的混合离散变量的情况，探讨了一种优化设计问题的方法———混合离散复合形法。

For pratical reasons, the method of increasing the number of iteration m so as to enhance the security can only be used in the case that parameters can match exactly, like a digital encryption system.

本文对以上的离散实际混沌加密系统采用多精度自扰动的离散化策略，从而避免了传统的离散化方法所带来的缺陷，使这类数字混沌加密系统走向实用。

First, the problem of choosing sample time in the discretized variable structure control of continuous-time systems is analyzed, then direct design methods of variable structure for discrete-time systems are discussed.

首先研究了将连续系统的变结构控制理论离散化后应用在离散系统时采样时间选取的问题，接下来讨论了直接针对离散系统的变结构控制的设计。

We will strictly derive the discrete Zak transform in more general conditions and establish the relationship between the continuous and the discrete Zak transform.

一、首次给出了一般条件下的离散Zak变换及性质。本文对一般条件下的离散Zak变换进行了严格的推导，并给出了连续Zak变换和离散Zak变换的关系。

A matrix method and a technique lased on minimax algebra are applied respectively to establish the discrete event state equation and the discrete event time-series equation which will benefit the performance evaluation of discrete event dynamic systems.

根据系统的网络表示，应用矩阵方法和极大代数方法分别建立了系统的离散事件状态方程和离散事件时序方程，为从现代控制理论的观点和体系来研究离散事件动态系统打下了基础。

Discrete system models in common use can be expressed in linear regression form and a complex system model can be expressed in combination of several simple system models.

根据离散系统模型结构的这些特点，我们用面向对象的程序设计思想，用&类&的概念来实现各种离散系统模型，从而形成离散系统模型类库，并可由此派生出其它更具针对性的模型类。

This article based on net disperse method has first established the description arbitrary shape non-uniform face target mathematical model.

但是在计算其毁伤效果的时候，难以解决判断网格离散点是否属于目标离散点的问题，没有比较有效的算法对面目标进行离散化。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。