查询词典 difference frequency

No significant difference in the frequency of the polymorphisms between atopic dermatitis patients and controls was found.

结果显示，两者之间的多型性表现并无差异。

Secondly, TheOHCs body possess the flask-shaped in the basal turn of the cochlea, which don"t likeother mammals"tube-shaped OHCs body. All of the results above indicate that bats andmostly any other little mammals have the similar audiogram in definite range, but alsohave some difference. Echolocating bats always possess of acuity hearing, whichinclude more available frequency.

以上研究结果表明蝙蝠和大多数其他小型哺乳动物在一定范围内虽有着相似的听力敏度图，却还是有不同之处的，回声定位蝙蝠经常拥有对它们来说更为有用频率的敏锐听力。

An improved derivative estimation algorithm with a low-pass filter that can suppress the influence of high-frequency noise is suggested to remove potential drawbacks of the backward difference that was applied in neural network inversion dynamic compensation method, such as large estimation error in the presence of noise and price increase of hardware realization when high estimation accuracy is required.

针对神经网络逆动态补偿策略中基于向后差分的微分估计算法在噪声环境下存在较大的微分估计误差，且提高估计精度会增加硬件成本等缺陷，提出了改进的微分估计算法，并以加速度传感器为例，设计了动态补偿实验装置，给出了基于改进的微分估计算法的动态补偿算法的实现步骤。

Then, a phase difference is performed on the base signal vector to compute frequency offset.

对基带信号作相位差分，估计频偏。

There was no difference in the frequency of hypotension or bradycardia between the groups.

两组中低血压和心动过缓发生的频率是没有区别的。

A detection method based on phase correlation uses a phase difference as the statistical quantum to detect double frequency carrier signal for BPSK DS/SS signals, it has the advantage of the rapid detection and can work well under low SNR condition.

基于相位相关的检测方法把相位差累积量作为检验统计量，通过检测载波二倍频信号来实现对BPSK DS/SS信号的检测，具有检测迅速并能够在低信噪比条件下工作的优点。

Two-dimensional finite difference time domain simulation results show that, in a wide angle range (about 20 degrees), in a normalized circular frequency range of , the transmission intensity can reach over 98% for both TE and TM polarization.

二维有限时域差分模拟结果显示，在较宽的角度范围内（约20度），约化圆频率处在范围内，分束器对TE和TM偏振光的透射强度都能达到95%以上。

The social class difference in frequency of shopping is negligible.

不同社会阶层在购物频率上的差异是微不足道的。

The wavelet coefficient energy group of time-frequency surface has distinct difference for different swept extent.

储层的孔隙度和电阻率曲线间微差形态波形的复杂程度隐含着储层含油气性的信息，油层水淹程度不同，其时频平面上小波系数能量团存在着显著差异，随水淹程度加重，其能量团分布由复杂逐渐趋于简单单调。

The Pade approximation is combined with 3-D frequency-domain finite difference (3D-FDFD) for the first time. The impact of expansion point and the order of rational function on the accuracy and the convergence radius is discussed in this dissertation.

主要包括以下内容：首次将Pade逼近运用到三维频域有限差分法中，详细讨论了Pade逼近中展开点选取、收敛半径与有理阶数的关系问题。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。