查询词典 acoustic

Surgical removal of bilateral acoustic tumors at one-stage craniotomy is quite difficult, but not impossible.

一次开颅切除两侧听神经瘤的手术颇为困难，但并非没有可能。

The optimal collocated positions of secondary source with two microphones are studied and the separate of transfer function method that reduce the influence of acoustic feedback are developed based on plane wave transmission theory of sound and concept of transfer function in a duct. After, In order to identify the variation of the signals and find out individual correlation coefficient, cross correlation function analysis between primary noise signal and reference input signal is processed.

本文根据管道声场的平面波传递理论，进行第二声源与两个感测麦克风之间的位置配置研究，配合数位讯号处理的技术，发展出转移函数分离法，以消除声场回授的影响，之后，再将使用和未使用转移函数分离法的讯号个别与主要噪音源讯号做交互相关函数的运算处理，辨识讯号之间的差异，找出个别的相关性系数。

In this study, we use LabVIEW programming language of PC-Based to carry out the reduction of actively noise with theoretical equations of acoustic feedback cancellation and incorporate Filtered-X LMS algorithm. Furthermore, it was to verify that the reliable of simulation and analysis for the processed of signal by the concept of cross correlation function.

而本研究中采用PC-Based作为控制处理器，透过LabVIEW图控程式实现消除声场回授的理论方程式，并且加入到Filtered-X LMS演算法则，当作控制器的输入讯号进行实验测试，以实现主动式噪音的消除，并且也同时验证本文中使用交互相关函数概念，辨识是否使用转移函数分离法之讯号模拟分析的可靠性。

And test the sound transmission sound of rubber and acoustic crystal using this measuring system.

并使用该系统对橡胶和声子晶体进行了隔声量的测量。

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The propagation of elastic wave in a cylindrical bore hole containing a fluid (for example, the muddy fluid is generally used) for acoustic logging is analyzed with a simplified model.

本文分析了简化模型下声波测井时裸眼井中弹性波的传播，此波场可看成是轴向传播有不同波矢的分波的叠加。

To distinctly find out the relationship between the rigidity of tablet and the ultrasonic speed,laser is emitted to the tablet and then we measure the speed of reflected surface acoustic wave and analyse the experimental data,finally get the tablet rigidity-wave speed curve.

为了清楚地了解片剂的硬度与超声波速度之间的关系，利用激光照射到片剂上，通过测定出反射的声表面波速度，且对实验数据进行分析，从而得出片剂的硬度与声表面波速度之间的关系曲线。

Cutting highs in the reverb on an acoustic guitar track, for example, can subtly deemphasize occasional finger squeaks.

Cuttingacoustic guitar轨道混响的高频量，例如，这个方法能降低偶然产生的finger squeaks（我不会吉他，所以我了解是过大的拔XUAN声音）。

The result shows that the law of acoustic-optic deflexion and modulation basically tallies with the experiment.

通过实验测量，绘制了声光偏转和调制曲线，并结合理论对实验结果作了分析讨论。

And some important phenomena which is very different from the stiff interface such as the interface debonding and sliding, crack defluxion, fiber bringing and pulling out have been successfully reproduced and revealed in the case of soft interface, accompanied result of acoustic emission is also presented.

可观察到考虑柔性界面时的界面脱粘、裂纹偏折、纤维桥联和拔出等现象，而刚性界面复合材料的破坏路径表现出完全不同的特性，同时得到相应的声发射模拟结果。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。