参数变化

In laboratory testing, coupons were immersed in brine continuously and intermittently to simulate the corrosion of the high strength steel wire in concrete crossbeam of bridge, the parameters about corrosion details of concrete coupons at different times were monitored by electrochemical impedance spectroscopy.

在实验室内进行钢丝全浸和对水泥试样间浸试验，利用电化学阻抗谱监测水泥试样中钢丝的腐蚀参数变化，并用极化曲线初步评定了阻锈剂对钢丝点蚀的影响作用；在大桥现场，用电化学方法快速检测了钢丝的瞬时腐蚀电流。

In addition, it's computed that how the aerodynamic force of flexible flapping-wing changes with flap parameters, such as flap angle, flap frequency, and so on. The computed results explained why bird wing have different flap motions in different phases of flight, and provide theory for future design work of flapping-wing MAV.

此外，本文还模拟计算了时柔性扑翼气动力随扑动角、扑动倾角等参数变化的情况，从而从气动的角度解释了飞鸟在不同飞行阶段的扑翼规律，并为柔性扑翼飞行器的设计提供了理论依据。

This system with greater time-delay and time-changed parameter as well as interrupts is described in principle.

着重从控制原理上介绍了在工程中处理大纯时间滞后、参数变化和抑制干扰的一种实现方法。

In this paper,based on study of Fuzzy control algorithm and PID algorithm,and for the advantages and disadvantages of this tow algorithm,putting forward the Fuzzy-PID compound control for swivel table control system.

基于对模糊控制算法和PID控制算法的研究，和鉴于两种算法的优缺点，提出了模糊-PID复合控制算法用于转台控制系统中，这种控制算法将大大提高转台抗外部干扰和内部参数变化的鲁棒性能，改善了转台的动、静态特性。

According to the characteristics of fault current sequence component on six-phase transmission lines, the paper proposes a novel fault phase selection scheme. The scheme can accurately distinguish the faulted phases under various fault conditions, and can be free from the influences of the transition resistance and system parameters.

2综合六相输电线路故障电流序分量的幅值和相位特征，提出了一种适用于六相输电线路的故障选相方案，该方案在各种故障情况下都能做到准确选出故障相，并且还有不受线路参数变化和接地电阻影响的优点。

In allusion to weak point of traditional PID control can't effectively tracking parametric variation of control system ,utilize neural network have predominance that self-study、self-organization、associative memory、concurrent processing and can get satisfactory result in complex control system on the basis of double closed loop,advance apply adaptive linear element network—Adaline network, which has self-learn and self-adjust ability.

在双闭环控制的基础上，针对经典PID调节器不能有效跟踪控制系统参数变化过程这一弱点，利用神经网络具有自学习、自组织、联想记忆和并行处理等功能和对于复杂系统控制可以达到满意效果的优势，提出了采用具有自学习和自适应能力的单神经元网络——Adaline网络，来构成一种神经网络自校正控制器。

A self-compensation method is proposed based on digital closed-loop control technology that eliminates the influences of the factors such as working conditions,circuitry parameters and so on.

提出一种基于数字闭环控制技术的时栅自补偿方法，消除了工作条件、电路参数变化等因素的影响。

The results show that the formation of the shear band is characterized with both strain localization and the localization of the averaged pure rotation ratio. The shear band starts right at the point where the volume strain changes from shrinkage to expansion. The development of these variables are significantly different within or outside of the shear band. Particularly, the stress-strain softening relationship was observed near or within the shear band, while the hysteretic phenomenon takes place outside the shear band. In addition, both the volumetric and deviatoric strains are larger inside than outside the shear band, with the soil being looser in the shear band.

研究表明：砂土剪切带的形成过程即为试样内部应变局部化过程，也为试样内部平均转动率(averaged pure rotation rate， APR)的局部化；剪切带开始形成点也为试样剪缩、剪胀分界点；剪切带内外各宏微观参数变化规律上存在明显的差异，主要表现为近剪切带位置土体及带内土表现为应变软化现象，而距带中心较远土体应力应变关系曲线出现'回滞圈'现象；带内变形量明显大于带外，且带内较带外松散。

Experiment results show that the statistical model based on the rhythm method can get more effective feature parameters of rhythm changes, and simulate the rhythm through sign language synthesis system.

实验结果表明，通过基于统计模型的韵律研究方法可以有效得到韵律参数变化特征，并可以通过手语合成系统进行韵律特征的模拟。

This suggested that the two heart preparations be metabolically and functionally stable and could be used for ordinary experiments.

Langendorff大鼠心脏和等容大鼠心脏在2 h灌流过程中高能磷酸化合物含量和血流动力学参数变化较小，两种离体大鼠心脏模型在所用实验条件下心脏功能和代谢显示出良好的稳定性，能够满足通常的实验需要。

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。