查询词典 acoustic

An accelerated acoustic echo cancellation algorithm is proposed in this paper based on Parallel Subgradient Projection technique.

摘要该文在并行次梯度投影技术(Parallel Subgradient Projection，PSP)的基础上，提出一种加速回波抵消算法。

First, based on coupled wave equations of interaction between pump field. stokes field, acoustic field in SBS processing under stable station, theoretic characteristic parament of SBS are induced, such as gain, threshold, and condition of effective SBS interaction.

首先由受激布里渊散射过程的泵浦场、斯托克斯场和声子场三波相互作用的耦合波方程组，推导出了稳态SBS过程的增益指数、阈值增益，及产生有效SBS相互作用的条件。

An indicator sampling method is proposed for visualizing a three dimensional penetrable obstacle from a knowledge of far field data for time harmonic acoustic scattered waves.

提出了用时谐声散射场的远场信息来可视化三维可穿透目标的一种指示器样本方法，它是通过析取一个指示器函数在包含可穿透目标的某个样本区域中的支集来实现这种可视化的，其中，这个指示器函数在可穿透目标的内部和外部有显著不同的取值。

Such methods include, but are not limited to, acoustic emission, neutron radiography, penetrant

使用这些方法，在不减弱零件预定功能的前提下可对所选

In addition, it was found that the fourth tone in Mandarin Chinese is quite identical to English stress in terms of acoustic properties as well as perceptional cues.

结果显示：受试者在辨识声调的感知的时候，主要的依据是声调的起伏和曲折，和调值并没有直接的关系。

In 4 cases, the cavities were full of perilymph. We could find that the cavity was irregularly round-shaped, about 6.5 mm in diameter, with thin mucosa adhere to the cavity wall. In the center area, around the internal acoustic meatus fundus, there was a horseshoe- shaped cystic structure about 3 mm3, which was a combined structure of the saccule, utricle and scala media. In 1 case, there was little perilymph in the cavity, with about 1.5 mm thick soft tissue and granulation adhere to the wall. The saccule, utricle and scala media were not recognizable.

结果 对5例患者进行共同腔内耳蜗内镜检查，见4例腔内充满液体，吸出后腔壁有扉薄黏膜附着，腔呈不规则圆形，直径平均约为6.5 mm，中央区贴近内听道底部位见马蹄形或肾形囊腔，约 3 mm3大小，为内耳球囊、椭圆囊和中阶畸形融合的结构；1例腔内淋巴液较少，共同腔壁附着软组织和肉芽，约1.5 mm厚，无法将腔壁上的软组织与中阶、球囊、椭圆囊的结构区分。

Results Five cases with common cavity underwent micro-endoscopy during cochlear implantation. In 4 cases, the cavities were full of perilymph. We could find that the cavity was irregularly round-shaped, about 6.5 mm in diameter, with thin mucosa adhere to the cavity wall. In the center area, around the internal acoustic meatus fundus, there was a horseshoe- shaped cystic structure about 3 mm3, which was a combined structure of the saccule, utricle and scala media.

结果 对5例患者进行共同腔内耳蜗内镜检查，见4例腔内充满液体，吸出后腔壁有扉薄黏膜附着，腔呈不规则圆形，直径平均约为6.5 mm，中央区贴近内听道底部位见马蹄形或肾形囊腔，约 3 mm3大小，为内耳球囊、椭圆囊和中阶畸形融合的结构；1例腔内淋巴液较少，共同腔壁附着软组织和肉芽，约1.5 mm厚，无法将腔壁上的软组织与中阶、球囊、椭圆囊的结构区分。

The distance between the line tom the intersecting point of the mandibular nerve and greater superficial petrosal nerve to the lateral lip of the internal acoustic meatus and the porus trigeminus was (8.04±0.99)mm.

颅中窝手术入路操作中，在下颌神经与岩浅大神经交点和内耳门后缘的连线的内侧磨除岩尖部骨质时，不容易损伤耳蜗。

Objective To study the acoustic parameters of normal adults in 4 phonation modes.

目的 研究正常成人在四种发声方式下各声学参数的变化。

There were certain changes in the acoustic phonetic features under HDBR, some of them were significant.

模拟失重对人的语音特征产生一定影响，某些语音特征的影响具有显著性。

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。