self-neutralizing frequency

Raman soliton self-frequency shift ( SSFS) of ultrashort pulses propagating in a dispersion-decreasing fiber ( DDF) is studied in this paper.

研究了色散缓变光纤中超短光脉冲的Raman孤子自频移现象。

Effect of the Load on Terminal Voltage and Frequency of a Self-excited Asynchronous Generator

自励异步发电机负载对端电压和频率的影响

In order to get rid of the dependence on other countries and establish self-governed time and frequency standard, the research on atomic frequency standard is imperative under the situation.

为了改变我国时间频率系统对国外的依赖，建立我国独立的时间频率基准，原子频率标准的研制势在必行。

When the elasticity deformation of the mechanical system becomes larger, there is not much difference between the resonance frequency and the cutoff frequency, even gets into the band, it might cause the system self-excitation and oscillation.

当机械系统的弹性变形较大时，其谐振频率与截止频率很接近，甚至落入带宽中，引起系统的自激振荡。

A self tuning fuzzy control system for variable frequency variable speed drive for cotton gin

轧花机变频调速参数自调整模糊控制系统

Self-activating and self-frequency-doubling ndxy_ ( 1-x) al_3 ( bo_3)_4 multi-functional crystal growth and its optical properties

自激活自倍频Nd xY（1-x）Al3（BO3）4复合功能晶体生长及光学特性

The green light with a power of 11.3 mW and an efficiency of 2.3% was obtained. Laser threshold for self frequency doubling operation is measured to be 1 mW.

获得113mW的自倍频绿光输出，光光转换效率为23%，自倍频腔阈值为1mW。

The measurements of the radio spikes with high time and frequency resolution by the spectrometer in Beijing Observatory may provide a self consistent diagnosis for the ambient plasma parameters ( magnetic field, density, temperature, wave vector, and the properties of nonthermal electrons).

利用北京天文台高时间和高频率分辨率的射电频谱仪对射电尖峰的测量，可以对背景等离子体参数进行的自洽诊断（磁场，密度，温度，波矢，及非热电子的性质）。

Calculated analysis of the tank filled with liquid natural frequency than the empty self-vibration frequency is low; prestressed tank wall effect on the impact of natural frequencies. 3.

计算分析得出罐内充满液体的自振频率比空罐自振频率低；预应力效应对储罐外墙自振频率的影响。

Finally, the impedance characteristic of piezoelectricity transducer and the principle of frequency tracking were studied. Software phase-locked loop was used to track self-adapting frequency, and arithmetic of frequency tracking based on change step and dichotomy was presented.

最后，对压电换能器的电抗特性和频率跟踪原理进行研究，采用软件锁相环进行了频率自适应跟踪设计，提出变步进与二分法相结合的频率跟踪算法。