查询词典 Signal-to-Noise

In addition, there was some difference in cycle between self – generating sine signal and the actual electrical network, so the great accumulated error and non synchronous error will be presented after several cycles.

另外，由于在传统的傅立叶系数数值求解时，微处理器进行离散化，所用的内部产生的正弦信号周期不能与实际电网周期完全相等，因此在多个电周期后，会有较大的积累误差和非同步误差。

Focusing on the problems existing in the implementation of polarity crosscorrelation"zero-crossing"algorithm in the practical applications, an improved approach based on HSI (High-Speed-Input channel of MCS8098) is proposed, which makes the circuit much simpler. Experimental results indicate that higher response speed and higher accuracy rating of signal recording can be obtained with the improved approach.

针对极性相关测速"零点穿越"算法在实际实现过程中存在的"零点穿越"信号容易"漏记"，而对流速测量造成不利影响等问题，本文提出了一种基于HSI的极性相关测速的技术改进措施，硬件结构更加简单；通过实验验证，基于HSI的极性相关测速法的响应速度快，信号记录的准确率高，是一种简单有效的技术方案。

HbLAP1 may be the factor of negative adjusting control of way of acerbity signal of jasmine of lacteal canal cell.

HbLAP1可能是乳管细胞茉莉酸信号途径的负调控因子。

After converting ,filtering and magnifying for four kinds signal produced by biochemistry enzyme （blood sugar ,lactic acid,cholesterol and acetone body）,the results are converted separately by AID converter of AdμC812, and then displayed on LCD.

送到AdμC812的四路A／D转换口进行模数转移，然后经过相应的运算、处理后在液晶显示器上显示出来。同时还能对测得的结果进行一些常规的实时诊断。

Through signal factor and orthogonal experiments manufactures of cheese spread s with direct acidification was investigated in this paper.

通过单因素实验和正交实验对用直接酸化法制作涂抹型干酪的方法和工艺进行了初步研究。

Results Compared with that in the NP tissues, the number of α-SMA positive cells increased significantly in BPH tissue, and the number of vimentin positive cells increased moderately in the stroma and prominently surrounding the acinus and in the basal layer. In BPH tissue, the myosin and ERα staining signal was lost in the stromal cells surrounding the acinus, and the positive staining cells gathered into bunches in the stroma far away from the acinus, while the positive cells were sporadically distributed in the NP tissue. The PCNA positive cells increased moderately in the stroma and increased significantly in the basal layer.

结果 与NP相比在BPH中，α-SMA阳性染色细胞显著增加；波形蛋白在间质中阳性染色细胞有所增加，在腺泡基底层及临近腺泡外层间质中阳性染色细胞明显增加；在临近腺泡外的数层间质细胞中肌球蛋白和ERα由部分阳性变为完全阴性染色，而在远离腺泡的间质中其阳性染色细胞由散在斑块状分布变为簇状密集排列；PCNA在间质中阳性染色细胞有所增加，在基底细胞层中阳性染色细胞显著增加。

Torpedo ; acoustic image ; scale identification ; target highlights ; direction of arrival estimation ; decoherent multiple signal classification method

鱼雷； 声成像；尺度识别；目标亮点； DOA估计；解相干MUSIC算法

Finally, the application of this method in array acoustic logging signal processing is proposed.

最后介绍了重排方法在阵列声波测井信号处理中的应用。

Finally, the test data of acoustical signal was processed and simulated on the basis of the mathematics models.

本文对绝缘子污秽放电的试验过程做了简略介绍，并对实验结果做了初步分析，分析表明绝缘子污秽度与声信号存在密切联系。

Recognition of microbial components by TLRs initiates signal transduction pathways, which triggers expression of genes. These gene products control innate immune responses and further instruct deelopment of antigen-specific acquired immunity.

机体能通过TLRs识别病原体成分引发的信号转导途径能激发体内的基因表达，这些基因产物能控制机体固有免疫反应，并进一步指导后天抗原特异性的获得性免疫的发展。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。