声学

voice acoustic analysis and EGG can provide an objective quantized index for the diagnosis of laryngeal carcinoma.

嗓音声学分析和电声门图可为喉癌的诊断提供客观的量化依据。

This algorithm quantizes the wavelet coefficients to different region according to the watermarking bit to be embedded, and introduce the features of human auditory system to gain the proper quantization step. In the detection, it uses threshold judgment to achieve blind detection.

该算法仍在小波域上进行，根据不同的水印信息将小波系数量化到不同的区间，并根据心理声学模型的一个结论讨论了量化步长的选择，检测时用门限判别实现了盲检测。

This may have been improved following the modernisation refits of the submarine in the late 1990s, which saw the surface of the submarine being covered with acoustic tiles to reduce the acoustic signature, and the introduction of the more advanced wire-guided anti-submarine torpedo and possibly submarine-launched YJ-8 anti-ship missile too.

这可能已经随着潜艇在1990年后期中的现代化改装中被改进，看到潜艇表面覆盖消声瓦减少声学特征，引进更先进的线导反潜鱼雷和也可能有潜射YJ-8反舰导弹。

Though the girls only issued three singles together,"Don′t Say You Love Me,""Everything You Do," and "Mirror Mirror," there are 20 tracks on the album, a fact made possible by the various acoustic and remixed versions, not to mention the Spanish adaptation of "Everything You Do" and the Mandarin one of "Pretty Boy."

虽然只有女孩一起发出三张单曲，&不要说你爱我&，&你所做的一切，&和&镜子镜子&，有20对新专辑，这个事实成为可能的各种声学和混音版本，更遑论对西班牙适应&你所做的一切&和国语的&漂亮男孩之一。&

The acoustic phased arc array transmitter can be used in azimuthal acoustic reflection logging. It evaluates the azimuthal variation of borehole formation acoustic properties, which is useful for complex reservoir recognition and evaluation.

这种相控圆弧阵声波辐射器用于方位反射声波测井新技术中，可评价井旁地层声学性质沿井周方向的变化，有助于复杂油气藏的识别和评价。

The acoustic phased arc array transmitter can be used in azimuth acoustic reflection logging and evaluate the azimuth variation of acoustic properties in the borehole formation and also be useful for complex reservoir recognition and evaluation.

这种相控圆弧阵声波辐射器可用于方位反射声波测井新技术中，能评价井旁地层声学性质沿井周方向的变化，有助于复杂油气藏的识别和评价。

Numerical simulation of the discrete noise in an axial-flow fan was performed by utilizing the method of CFD in conjunction with CAA.

采用计算流体动力学和计算声学相结合的方法，对轴流式通风机的离散噪声进行了数值模拟。

The prototype system considers the geometry of the building, the position of the source and receiver, and the acoustic properties of the sound transmission (the sound absorption coefficient of the walls and the temperature of the environment). The system then builds the beam tree by beam tracing, and finds all possible paths of the transmission and reflection. All sound paths are then traced to compute the sound obtained by the receiver.

本系统利用建筑物的几何空间、音源与接收者的资讯，考虑建筑材料的吸音系数、环境的温度等声学相关属性，使用光束追踪法建立光束树，寻找各种可能的穿透与反射路径，建立声音的路径模型，并且计算声音的衰减，处理声音的音响输出，来模拟接收者所听到的声音与回响。

The characteristics of evoked-call from DM were studied by the methods of electrophysiology and acoustics in bramble finch.

应用电生理与声学分析相结合的方法研究鸣禽鸟燕雀DM核团对声音调控的模式。

Under the contract, a Lockheed Martin-led industry team will develop three types of expendable communications buoys: two submarine-launched tethered buoys that provide real-time chat, data transfer and e-mail capabilities via either Iridium or UHF satellites; and an untethered, acoustic-to-radio frequency gateway buoy that can be launched from a submarine or maritime patrol aircraft to enable two-way data transfer between a submerged submarine and surface assets.

根据合同，洛克希德马丁公司领导的工业团队将开发三种类型的消耗通信浮标：两个潜艇发射栓浮标提供实时聊天，数据传输和电子邮件功能，通过任何铱星或超高频卫星；和非系留，声学对无线电频率网关浮标，可以从潜艇发射或海上巡逻机，使双向之间的数据传输水下潜艇和水面资产。

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。