指标函数

The sensitivity formulations of the reliability index with respect to the parameter of structural local performance index are derived in detail.

提出了结构局部地震易损性的概念，通过构造结构局部性能指标与其参数之间的一个新的功能函数，给出了局部地震易损性的可靠度表达式；根据可靠性灵敏度的概念，提出了构造结构局部性能指标概率密度函数的新方法，并详细推导了结构可靠指标对局部性能指标参数的灵敏度表达式。

Chapter 6 studies uncertainty representation by the evidence theory and presents the index function method to describe evidence uncertainty. The combination monotonicity of evidence is discussed.

第六章运用证据理论研究了不确定性的表示问题，提出了描述证据不确定性的指标函数法，研究了证据的合成单调性。

Taking range as the performance function, considering end velocity, height and trajectory slope angle constraints, the optimal glide trajectory was solved by maximum principle of Pontryagin and conjugate-gradient method.

建立了滑翔弹道模型，以射程为指标函数，考虑终端速度、高度和弹道倾角约束，采用庞特里亚金极大值原理和共轭梯度法求出控制变量有约束的最优滑翔弹道，简要分析了滑翔增程机理。

Taking into account of consumers' psychological expectation of price change, the paper offers retail price index function of social commodities and relevant sixteen economic indicator functions.

结合消费者对物价变动的心理预期因素，给出了社会商品零售价格指数函数以及相关的16个经济指标函数。

As the modified style of conventional BP neural network,this paper uses the rule of minimizing total square error from initial time to current time as the performance function.

作为常规BP神经网络的改进型，提出以从最初时刻到当前时刻的误差的平方和最小作为性能指标函数。

However, there is no valid mothed to quantitatively evaluate the operation performance of the force telepresence system before.

本文首次提出了虚拟阻抗的概念，以此导出了一套能定量评价力觉临场感系统操作性能的距离指标函数。

Based on the Lyapunov stability theory and the linear matrix inequality approach, the sufficient condition and conformation approach of the guaranteed cost controller was given, which could make the closed-loop systems quadratic stable for all admissible uncertainties, as well as guarantying the cost was bounded in a limitation.

所设计的保性能控制器保证了对所有容许的不确定性，不仅使得相应的闭环系统达到二次稳定，同时保证闭环性能指标函数具有上界。

In order to decrease the calculation in the control law of the GPC, a neural network inversing controller with multi-step-ahead cost function is introduced.

针对基于神经网络预测模型的广义预测控制算法控制量计算中存在的计算量大的问题，提出了多步预测性能指标函数下的神经网络逆控制方法。

The substance of the Skyhook control is discussed and a new semi-active vibration control strategy based on acceleration feedback and velocity feedback is established.

该文讨论了Skyhook控制策略的本质，建立了基于加速度和速度反馈的半主动减振系统控制策略，该控制策略能使被控物体在该文所选择的性能指标函数下得到近似最优控制。

By whitening the covariance matrix of flat ambiguity, correlation between ambiguity components, the number of local extrema of cost function is reduced.

通过白化处理模糊度，减少模糊度搜索中指标函数的局部极值点，采用适当的编码和遗传操作使得在种群个体较少的情况下避免搜索陷入早熟。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。