in this paper, we study the forced oscillation and the strong oscillation of systems of impulsive neutral parabolic differential equations with several delays.

本文研究了一类脉沖中立型时滞抛物方程解的振动性及强振动性，获得了此类脉沖中立型时滞抛物方程解振动和强振动的代数判据。

the resonant solution on forced oscillation of a2b model is given and the modes of vibration on resonant frequency are discussed.

给出了a2b模型受迫振动的两个共振解，讨论了共振频率下的振动模式。

forced oscillation of solutions for systems of nonlinear neutral impulsive partial differential equations;

研究了一类高阶非线性中立型差分方程组非振动解的存在性。

an averaging technique is used to study the forced oscillation of nonlinear hyperbolic equations with a distributed deviating argument.

目的研究一类具有连续分布偏差变元的二阶微分不等式解的性质。

the component of rotation along the velocity vector is used with the rotary balance test data and other components of the rotation vector are used with the forced oscillation test data.

旋转角速度的其它分量用于振蕩天平试验数据，综合地使用了各类试验数据。

variations of propylene conversion, acrolein selectivity and yield were investigated experimentally by various forced oscillation patterns and compared with the results of steady-state operation.

实验考察了在不同强制振蕩周期与振幅下的丙烯转化率和丙烯醛选择性及收率的变化，并与稳态反应条件下的结果作了比较。

in this paper, a forced oscillation method is introduced which was used at china aerodynamics research and development center to identify all aerodynamic derivatives of an airplane.

强迫振动法一直被认为是提取气动导数最精确的方法，但由于装置较为复杂，研究和实施此法者目前较少。

it is shown the nonlinear aerodynamic model given by the article can accurately calculate aerodynamic responses of aircraft models in large amplitude forced oscillation tests at high angles of attack.

实际计算结果表明该非线性气动力模型能够较为精确地计算飞机模型大幅值迎角简谐振动产生的气动力响应。

based on the data from forced oscillation tests of rigid cylindrical sections, many empirical tools were developed.

近年来出现的若干经验模型基于圆柱体受迫振蕩实验数据。

through the numerical simulation of forced oscillation of liftbody by solving the (n-s) equations, the equilibrium gas effect on damping-in-pitch derivatives is investigated.

通过数值求解n-s方程，模拟升力体外形的强迫振动过程，研究了平衡气体效应对带翼飞行器俯仰阻尼导数的影响。

this paper mainly introduces and discusses the experimental results of the forced oscillation excited by a non-sinusoidal periodic driving force.

在非正弦周期性外力作用下受迫振动的实验结果，并十分清楚地显示了受迫振动的较为完整的图像。

using external periodic forces, local forced oscillation was made in swnt. with the propagating of the deformation induced by oscillation, the mechanical waves were formed in swnt.

利用所施加的周期性机械外力，使单壁碳纳米管产生局部径向形变，该形变将以单壁碳纳米管的管壁为弹性媒质传播开去，从而在单壁碳纳米管中形成机械波；

the bifurcation and chaotic process of two-dimensional parallel wall shear flows are described by the forced oscillation equation containing a square nonlinear term.

二维平行壁面剪切流动进入混沌的现象可用含二次非线性项的强迫振动方程来描述。

this paper reports a theoretical method about estimating central and peripheral respiratory resistance by using forced oscillation technique.

本文介绍一种用强迫振蕩技术评估中心以及外周呼吸阻力的方法。

objective: to evaluate the changes in lung resistance and its clinical significance in open heart surgical patients using forced oscillation technique.

目的：探讨强迫振蕩肺阻力测定技术研究心内直视手术患者围麻醉期肺阻力变化规律和异常表现的临床意义。

the limitations of such methods based on forced oscillation tests are also pointed out.

文中还指出了类似的基于受迫振蕩圆柱体实验数据的预报模型存在的缺陷。

the general solution of equations of damped forced oscillation for a2b model is solved and the vibration image is discussed.

导出了a2b模型阻尼受迫振动方程组的通解，并讨论其算例和图像。

several forced oscillation criteria are established for such systems subject to two different boundary conditions.

建立了这类系统在两类不同边界条件下强迫振动的若干判别準则。

some problems of the study on forced oscillation pattern of a2b model are discussed.

讨论了a2b模型的受迫振动模式研究中的一些问题。