查询词典 oscillation of a function

Taking advantage of gauge transformation and dipolar approximation, we qualitatively derive rotating Bose-Hubbard model.Then finite temperature phase boundary between superfluid phase and normal state in rotating Bose-Hubbard model is analytically derived by studying the stability of normal state in rotating bosonic optical lattice.We also analytically prove that as the function of rotation angular velocity the oscillation of critical hopping matrix directly follows the upper boundary of Hofstadter butterfly.

4通过做一个规范变换和偶极近似，定性地推导了旋转Bose-Hubbard模型，并且通过研究正常态不动点的稳定性推广了旋转Bose-Hubbard模型的零温相图到有限温度的情形；另外根据系统有效的能带宽度与旋转速度的关系(Hofstadter蝴蝶)，得到了系统的临界跃迁矩阵随旋转速度的改变展示谐振行为的结论。

In this paper, the method of singular Lyapunov function is used to study singular nonlinear systems , the sufficient conditions about its asymptotic stability and the harmonic oscillation theorm for it are given.

本文运用广义李雅普诺夫函数方法研究了一类广义非线性系统，给出了其渐近稳定的判别条件，对相应的周期系统给出了其平稳振荡定理。

In this papper, the methods of decomposition of large-scale system and Liapunov function are used in studying the existence of stationary oscillation of periodic interval system and some new results are obtained.

应用大系统的分解和Liapunov函数的方法研究了周期区间系统的平稳振荡的存在性问题，得到了一些新的结果。

A pilot vehicle system mathematical model containing nonlinear control elements of the flight control system is established by the describing function method; the limit cycle of PVS is determined; the relation between the limit cycle and pilot induced oscillation and the influence of nonlinear control elements on PIO are explored.

采用描述函数法建立了含有非线性控制系统的人机系统数学模型，确定了系统的极限特性，探讨了极限环与驾驶员诱发振荡之间关系和操纵系统非线性因素对PIO影响等。

Especially by choosing the appropriate positive linear functional g and average function, we shall present several easily verifiable oscillation criteria.

特别地，通过选取适当的正线性泛函g和平均函数，可以得到一系列新的精确的振动准则。

By detecting the oscillation circuit natural frequency to determine the level of water.The frequencymeter use the Microprocessor internal counter to counting the film resonant frequency of the water level sensor pulse,then Microprocessor regular function to achieve frequency testing, final adoption of LED display circuit dynamic numerical show.

该频率计直接利用单片机内部的计数器对薄膜谐振式水位传感器的频率脉冲信号进行计数，然后利用单片机的定时功能实现对频率的检测，最后通过LED动态显示电路显示数值。

It is predicted that the function of mold oscillation can be substituted by imposition of an intermittent high frequency magnetic field in continuous casting of steel.

在间歇式高频磁场作用下，通过高速数码摄像机观测并研究了熔融金属弯月面的形状及其波动行为，建立了保护渣浸入深度的理论计算模型。

Oscillation is a electronic function that changes direct current to the signal of desired frequency.

翻译参考：振荡是一种电子功能，它将直流电改变为具有所需要的频率的信号。

The main funtions and stability assessment solutions based on phasor measurements are provided. The function of online oscillation monitoring is described in detail. This paper also presents some system applications and related experiences in European and Asian power grids.

本文主要介绍新近开发的广域监测、控制和保护系统的设计框架，基于广域测量的系统稳定性评估功能模块，以及该系统在欧洲和亚洲部分电网的应用和运行经验。

Key words: rate limiting;pilot-induced oscillation;describing function

关 键词：速率限制；驾驶员诱发振荡；描述函数法

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。