组频率

Results In this study, the frequencies of T allele were 52 % and 43% in the PD ground and the health control group respect...

结果PD组的T等位基因频率为52％，而对照组为43％，两组差异有显著意义（P＜0.05）。

There are three parts in our design: first, the dual-band branch line coupler provides two equal-power signals with 90° or -90° phase difference in each operating band. Second, the wideband switching circuit controls the two output powers of branch line coupler to excite the antenna structure for producing linear polarization wave or circular polarization wave. Third, the L-shaped fed conventional planar patch antenna is provided to overcome the coupling effect.

整体架构包含三个部分：L形电容耦合馈入式平面天线是为了克服平面式微带天线窄频的缺点；双频枝干耦合器提供天线在操作的两个频率点上各输出两组相差正九十度与负九十度的讯号，最后宽频的切换电路是将枝干耦合器的两组讯号作分配用以激发不同方向的天线以产生线性极化模态或同时激发两个垂直的天线以产生圆形极化模态。

The rows and columns select frequencies from the low and high frequency group respectively.

这些行和列分别从低音频组和高音频组中选择频率。

An experimental set-up is designed to measure the load-deflection curve and the natural frequencies of the elastica. The measured load-deflection relation agrees with the theoretical prediction very well. On the other hand, the measured natural frequencies do not agree very well with the theoretical prediction, unless the mass of the moving clamp is taken into account.

我们设计一组实验装置以量测弹性板条的受力-变形曲线以及自然频率；受力-变形曲线的量测结果与理论值相当吻合，而自然频率的量测结果与理论值并不相符，但考虑滑动夹持端质量后，理论与实验值相符许多。

The history of hypertension、 diabetes、 hyperlipoidemia and smoking in ICVD group are all higher than control groupP

ICVD组和对照组的CC+GC基因型频率分别为0.167和0.051，C等位基因频率分别为0.113和0.031。

Postoperative contrast sensitivity testing showed statistically significant differences (P＜0.05)between the two IOLs at 12 and 18 cpd under photopic, at 1.5and 3 cpd under mesopic, and at 1.5 and 3 cpd under mesopic with glare conditions.· CONCLUSION: The Tecnis Z9000 IOL proved to have statistically significant superior contrast sensitivity to the 911AIOL at high spatial frequencies under photopic conditions and at low spatial frequencies under mesopic and mesopic with glare conditions.

术后对比敏感度分析发现两组在12和18 cpd、1.5和3 cpd以及1.5和3 cpd均有统计学差异(P＜0.05)结论：Tecnis Z9000 I0L被证明其对比敏感度在明视高空间频率和暮视低空间频率方面均显著优于911A IOL。

Optimized and calculated geometric structure and infrared spectrum of benzoic acid molecule with density functional B3LYP method on 6-311G ** base cluster level,and compared the calculated infrared frequency of each conformation of benzoic acid with actually-measured infrared spectrum,thus determined molecula.

用密度泛函 B3LYP方法在6-311G**基组水平上对苯甲酸分子的几何结构和红外光谱进行了优化和计算，并将计算所得的苯甲酸各构象的红外频率与其实测的红外光谱进行比较，确定了在晶体中苯甲酸的分子结构，同时在计算中给出了各种频率所对应的红外强度，对光谱进行了归属。

However, upon detection of an incumbent narrowband signal in the channel, the WRAN endpoint forms a frequency usage map for transmission to another WRAN endpoint, wherein the frequency usage map identifies one, or more, of the subcarrier sets that would interfere with the incumbent narrowband signal.

然而，在检测到信道中在用窄带信号时，WRAN端点形成频率使用映射，用于向另一个WRAN端点传输，其中所述频率使用映射识别一个或者多个与在所述用窄带信号干扰的子载波组。

First, it gests the bandwidth parameter and center frequency of Gabor filter based on human vision and the size of texture image, constructing the multichannel Gabor filters and extracting the Gabor multitemporal and multidirectional energy features of image in the time and frequency domain and implementing nonlinear transform and Gauss lowpass filtering in the feature space.

首先根据人类视觉特性选定Gabor滤波器的频率带宽参数，利用图像大小确定滤波器的中心频率，构造一组多通道的Gabor滤波器在时域和频域中提取图像多方向和多分辨率的Gabor能量特征，对特征空间进行非线性变换和Gauss滤波处理，最后通过Kmeans方法实现纹理图像的分割。

This method sums a group of sinusoids to synthesize the speech signal, and the frequencies of these sinusoids are multiples of the fundamental frequency.

本算法采用叠加一组正弦波的方法来合成语音，这些正弦波的频率是基音频率的整数倍。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。