振子

The findings: with the apparent dominant frequency of the Ricker wavelet rising, the detection SNR will get worse gradually, it is obvious that the variety of the SNR is slower during the portion of high frequency than during the portion of low frequency; in the usual range of seismic prospecting frequency, the SNR of the chaotic oscillator detection system could partially make up the amplitude attenuation aroused by the transmit of the seismic wave; the results could provide help for detecting the event constituted by aberrant wavelets.

本文以Ricker子波模拟地震子波，研究Ricker子波视主频变化的相应检测效果。研究结果：随着Ricker子波视主频的升高，检测SNR逐渐变差，在高频部分SNR的变化明显比低频部分缓慢；在通常地震勘探频率范围内，混沌振子系统检测SNR有可能部分补偿由于地震波传播引起的幅度降低；为检测由畸变子波构成的同相轴提供一定的可能。

It is the first time to give the formulae of non diagonal matrix elements of tensor operator s which can be employed to describe the ro vibrational interaction for linear tetratomic molecules.

利用Lie代数方法研究了四原子分子振转相互作用，在代数框架内首次给出四原子分子振转相互作用的张量算子非对角矩阵元的表达式，利用这些表达式对线型四原子分子HCCF振转相互作用的l doubling进行了计

The frequency and amplitude of wake force were deduced theoretically, while the influence of stator sector distribution and stator vane quantity on the wake force of vane was also discussed. Transient analysis was conducted for the forcing response of rotor blades under the same stator sector distribution and different quantities of stator vane, so an optimum asymmetry stator mistuned design was developed.

对不对称静子叶片非谐情况下激振力频率幅值进行推导，讨论了静子扇区分布和静叶数目选取对尾流激振力的影响，并对相同扇区分布不同静叶数目情况下转子叶片的强迫响应进行瞬态分析，给出不对称静子非谐设计的最优方案。

Microwave absorbing properties of the composites containing activated carbon-fiber felt dipole array s were investigated.

研究了含活性碳毡对称振子阵列吸波复合材料的微波吸收特性。

This thesis discusses the bifurcations and fractals of Holmes-Duffing oscillator under some kinds of excitations.

本论文主要讨论了Holmes-Duffing振子在各种激励下的分岔与分形。

There is, however, an additional contribution arising from those oscillators in the vicinity of the aperture's edge

然而还存在着由孔边界附近的那些振子所产生的另一项贡献。

In the third chapter,we mainly investigate the phase synchronizationof the chaotic oscillators.

第三章着重研究了混沌振子的相同步行为。

One of multiple modes of the governing equation was obtained using Galerkin s method to obtain a parametrically excited Duffing s oscillator,and the fixed points and homoclinic orbit s .

用Galerkin方法将系统简化为参数激励和强迫激励耦合的单模态Duffing振子，得到了系统的不动点和同宿轨道。

The transition energies and oscillator strengths of 1s^2 3d-1s^2 nf(4≤n≤9) for lithium-like Ti(superscript 19+) ion are calculated by using the full-core plus correlation method. The fine structure splittings of 1s^2 nf(n≤9) states are also evaluated.

用全实加关联方法计算了类锂Ti(上标 19+)离子1s^2 3d-1s^2 nf(4≤n≤9)的跃迁能、振子强度及1s^2 nf(n≤9)态的精细结构劈裂。

At F=0.03 a.u., the maximum of energy gaps is 2.58650 eV. The external electric field has effect on excitation energies, oscillator strengths and harmonic frequency.

时，达到最大值2.58650 eV；外电场对MgS分子的激发能、振子强度和振动频率均有较大影响。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了