查询词典 inverse system

The feasibility,effectiveness and limitation of four improvement measures are studied:raise protection settings or prolong protection delay;apply inverse time limit ;use additional criterion to distinguish valve fault from AC system fault;and adjust 100 Hz protection configuration principle.

为减小交流系统故障期间直流100Hz保护动作的概率，利用PSCAD/EMTDC仿真分析软件，就阀故障和交流系统故障时直流线路50Hz/100Hz电流特性进行了分析，研究了提高保护定值或延长保护动作延时、采用反时限特性、利用附加判据区分交流故障和阀故障、调整直流100Hz保护配置原则4种措施的可行性、使用后的效果及局限性。

As there are many factors, which are difficult to be considered in the model, affact the hitting action we used the method of Gaussian Kernel learning to calculate the inverse mapping and correct the speed vector of the hitting ball for this multi-input and multi-output system.

考虑到有很多难以模型化的因素影响击球，对于该多输入多输出系统，提出了利用Gaussian Kernel学习的方法，根据刺激-反应间的映像关系，修正打击后球的速度矢量。

It can be proven that, in the sense of NB, any system relying on linear inverse mapping to demodulate symbols cannot exceed Nyquist rate, unless it gives up orthogonality and adopts maximum-likelihood demodulation.

证明了采用逆映射解调的系统不可能在必要带宽意义下突破Nyquist速率。

Originally, the internationally accepted system of units known as SI (Système International d'Unités) defined the second as 1/86,400 of a mean solar day—simply the inverse of the number of seconds in 24 hours.

国际通用的单位制体系SI规定一秒等于一个平均太阳日的1/86400——简单来说就是24小时所含秒数的倒数。

Firstly, by adopting the thought of Adomian's decomposition method, the generic dynamic model in mechanical systems are transformed into a standard first-orderdifferential-equations, and then the inverse operator method for the approximate analytic solution of nonlinear mechanical system is developed based on the exact solution in form.

主要研 究工作如下：利用Adomian的分解方法的思想，把机械系统中最一般的动力学模型转化为一阶标准型微分方程组，以形式上的精确解的表达式为基础构造了求解机械系统非线性模型近似解析解的逆算符方法；针对机械系统非线性模型的特点，提出了直接处理高阶方程的不降阶逆算符方法；证明了该方法的收敛性。

Special attention should be paid when we apply the decomposition method to two-point boundary value problems, it is necessary to solve a algebraic system;It should be noted that a modification of inverse operator should be made when dealing with singular boundary value problems;Laplace transform and Pade approximants can be coupled to enhance the efficiency of the decomposition method.

比如，在求解两点边值问题时就需要特别注意，这时需要采用待定系数法，最后会涉及到系数方程组的求解；在处理奇异边值问题时需要重新定义逆运算；不少研究人员还把分解方法与Laplace变换和Padé逼近相结合来进一步提高分解方法的精度。

As a transient inverse proposition of pipeline flow dynamics system identification, existent problems applied to CPM based on Real Time Transient Method are pointed out.

第二章给出了基本管内瞬变流动力学方程组，考虑到输送流体的性质，如粘性、可压缩性、状态相变等的不同，分别给出了相应的控制方程组。

The analysis indicates that the inverse spectrum has a noticeable feature to distinguish the influence of the side frequency as well as the transfer function in measuring test system.

分析表明倒频谱在识别边频及测试系统传递函数的影响方面具有明显的特点。

It is shown by frequency domain analysis and simulations that the transfigured controller can improve the dynamic behavior of the system if the frequency spectrum of the inverse of the non-transfigured controller has the low-pass and high-obstructive characteristics.

从理论上分析了如果用常规的回路成形算法设计出的控制器的逆的频谱具有低通和高阻特性，常规的回路成形控制器变形后能够改善系统的动态性能，并将之应用于船舶自动舵的设计中，获得了满意的控制结果。

This paperexplores the way to analyze the time domain amplitude spectrum , frequency domain power spectrum and inverse frequency spectrum todetect faults with AI technology, especially expert system.

本文探讨了利用智能技术特别是专家系统来进行旋转机械的时域幅值谱、频域功率谱及倒频谱分析，从而进行故障诊断的方法和途径。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。