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- alpha cutoff frequency α截止频率
- The effect of the cutoff frequency on the train's height,width and lo... 并通过计算结果分析了矿井中列车的位置、高度和宽度对截止频率的影响。
- And the bandwidth when the waveguide operates in single mode is determined by the cutoff frequency of the E_(y)1 mode and that of the E_(y)2 mode. 波导单模工作的带宽由E(y)1和E(y)2模式的低端截止频率决定.
- The filter has advantages of compact size,easy fabrication and sharp cutoff frequency response,and is useful for many microwave system applications. 这种滤波器尺寸小,易制造,且具有陡峭的截止频率响应特性,可应用于许多微波系统中。
- Increasing the effective inductance makes it easy to control the cutoff frequency characteristics of the DGS planar circuits. 增加的等效电感可以容易控制DGS平面电路的截止频率特性。
- The loaded capacitor’s distance was decreased to increase the upper limit of PFN’s cutoff frequency and to decrease the impedance dispersion. 采用损耗线模型分析了串联PFN的端部反射系数，研究了减小反射系数的方法；
- It calculates directional stress using surface-wave directional spectra by parameterizing “spectral tails” (frequency >cutoff frequency) unresolved by the wave models. 此参数法可以藉由参数化波模式所无法解析的波谱尾并利用地面波直接波谱来计算直接应力。
- The width of the rectangular cavity was found to af-fect the cutoff frequency of the device most significantly, while the length of the cavity has least influence. 长方形共振腔的宽度影响元件之微波截止频率甚为显著，然而共振腔长度对元件的影响则较不明显。
- They also understood that as the sunspot numbers increased during the eleven-year solar cycle, the critical cutoff frequency for long distance transmission also increased. 他们并且了解当黑点数字增加了在11年的太阳周期期间,重要截止频率为长途传输并且增加了。
- In order to solve the problem of cutoff frequency of rectangular ridged waveguide,effects of trains on cutoff frequency in rectangular tunnel are analyzed by using ridged waveguides method. 为求解矩形正脊波导的截止频率问题,把求解矿井隧道中存在列车时的电磁波传播特性问题归结为求解矩形正脊波导截止频率的问题。
- When the length of cutoff region is so long or the main frequency is so high to approach the cutoff frequency, the main frequency of wave packet is so high to exceed the cutoff frequency. 电场频谱图显示波包的频谱明显上移,而且当截止区长度足够大时,或者输入波频率趋近于截止区截止频率时,波包的峰值频率甚至超过了截止区的截止频率。
- The effects of cage in mine tunnel on the cutoff frequency is analyzed by the finite-element method when the tunnel is regarded as a waveguide, and the numerical results are obtained. 把矿井隧道看作波导,利用有限元法分析了隧道中的罐笼对电磁波截止频率的影响,并得到数值结果。
- Acoustic excitation sources, high order modes and cutoff frequencies of noise were discussed for an annular combustion chamber. 论述了燃烧室的声激励源、环形燃烧室内高阶声模态及其截止频率。
- The high order mode cutoff frequencies and resonant frequencies of TEM cell were analyzed using finite-element method (FEM). 采用三维有限元法分析了TEM传输室的高次模截止频率和谐振频率。
- The researches are concerned with alpha rays. 这些研究是关于阿尔法射线的。
- High Pass Filter Cutoff Frequency 高通滤波器截止频率
- Attenuate band above cutoff frequency 衰减截止频率以上的波段
- Attenuate band below cutoff frequency 衰减截止频率以下的波段
- According to the analysis of spectrum for a series of the partial discharge pulse waveforms, the author proposed that the upper cutoff frequence of a detector should not be higher than 1 MHz and the bandwidth of the detector should not he too broad. 作者根据对局部放电脉冲波形的频谱分析,提出检测器的检测频率以低于1兆赫(1 MHz)为好,频带不宜过宽。
- Wheat is the alpha and omega of their diet. 小麦是他们的主要食物。
