查询词典 noise

Based on thermal conduction theory, a thermal model is built up to get the effective thermal content and the effective thermal conductivity to be 1.0×10^(-3) W/K and 8.1 μJ/K, respectively, and the temperature-fluctuation noise is nearly 1.73×10^(-10)W/Hz(superscript 1/2). According to the device operating principle and energy equipartition theory of thermodynamics, the mechanical-thermal noise is 9.96×10^(-9) W/Hz(superscript 1/2), and the background noise is nearly 3.22×10^(-11)W/Hz(superscript 1/2), so that the normalized detectivity is deduced to be 9.03×10^6 cmHz(superscript 1/2)/W.

从理论上建立了器件的基本热模型，推导得到器件的等效热熔和等效热导分别为8.1μJ/K和1.0×10^(-3)W/K，温度噪声约为1.73×10^(-10)W/Hz(上标 1/2)；通过器件的工作机理和能量均分原理，推导得到热机械噪声的等效噪声功率约为9.96×10^(-9)W/Hz(上标 1/2)，器件的背景噪声约为3.22×10^(-11)W/Hz(上标 1/2)，从而得出器件的归一化探测率约为9.03×106cm。

So it is suitable for higher receiving point. T-shaped structure has a good reducing noise effect at the area lower than 2m behind the noise barrier. The insertion loss is between 1.7 and 2.4dB higher than that of the erective noise barrier.

在屏障后50m距离、高度20m的插入损失仍能达到3.4dB，比直立形高出3.2dB，适合用于防治高度较高的噪声敏感点噪声。

A technology of VAD, in practice, plays an essential role in noise spectrum estimator. The VAD scheme is frequently employed into noise spectrum estimator as an indicator of updating noise spectrum.

事实上，语音侦测技术使也在噪音估测器中扮演非常重要的角色；一般都采用语音侦测系统的技术作为判断何时追踪噪音频谱变动的指示器。

Noise measurement and analysis instruments: sound level meter, noise dosimeter, noise statistics analyzer, personal sound exposure meter, octave and 1 / 3 octave filter

噪声测量分析仪器：声级计、噪声剂量计、噪声统计分析仪、个人声暴露计、倍频程和1/3倍频程滤波器； 42。

Morphological and flourescent changes were assessed using confocal microscopy in whole-mount organ of Corti preparations. Results (1) After the animals were exposed to broadband noise at 122 dB SPL in 4 h/day for 2 days, both apoptosis and necrosis appeared in OHCs. The single strand DNA in apoptotic OHCs were observed both in guinea pigs and mice.(2) In normal OHCs, EndoG was distributed outside of nuclei. EndoG translocated from outside to inside of the nuclei in both apoptotic and necrotic OHCs following noise exposure.(3) The MNNG cochlear perfusion and noise exposure both caused the transloctation of AIF from the mitochondria to the nuclei. The translocation of AIF took place in both apoptotic and necrotic OHCs.

结果 (1)暴露于120 dB SPL的白噪声环境中每天4小时，连续2天后引起豚鼠和小鼠耳蜗外毛细胞凋亡时，其细胞核内产生ssDNA，而在正常细胞内没有三ssDNA；（2）在正常情况下，EndoG分布于耳蜗毛细胞的细胞核外，在暴露于上述噪声后发生凋亡和坏死的豚鼠耳蜗外毛细胞中，EndoG从细胞核外转移到细胞核内，细胞核中的EndoG显著增加；（3）豚鼠耳蜗外淋巴灌流烷化剂MNNG后发生耳蜗外毛细胞凋亡和坏死，在凋亡和坏死的耳蜗外毛细胞中，AIF自线粒体转移到细胞核，其变化与噪声损伤引起耳蜗外毛细胞凋亡和坏死时一致。

The Gauss noise, the pulse noise, and mixture of two is the typical noise model .

由高斯噪声、脉冲噪声以及二者的叠加而成的混合噪声是数字图像中存在的典型噪声模型。

Result: The result showed that the prevalence rate of noise induced deafness was 27.97%,there was a dose response relation between the incidence of noise induced deafness and the doses of the noise exposure.

结果：结果表明，所调查五金工业噪声作业工人噪声性耳聋患病率为27.97%，各级噪声性耳聋患病率与噪声接触剂量之间存在着剂量反应关系。

The result showed that the prevalence rate of noise induced deafness was 27.36%,there was a dose-response relation between the incidence of noise induced deafness and the doses of the noise exposure.

研究结果表明，所调查麻纺厂噪声作业工人噪声性耳聋罹患率为27.36%，各级噪声性耳聋罹患率与接触噪声剂量之间存在着剂量反应关系。

When a noise signal is present, a pilot signal and noise signal passing through a capacitor are applied to the inverting input port of the subtracter via a second MOS transistor to cancel the noise signal contained in the composite input signal.

当噪声信号时，一个试验信号与噪声信号通过电容通过应用通过一个晶体管第二马鞍山到减法反相输入端口，取消噪声信号的复合输入信号中。

Especially , with the wide use of the low noise microwave receiver model of "low noise amplifier - mixer - intermediate frequency amplifier", the rejection to image frequency interference has become the last problem how to make the whole receivers noise low and resist interference.

尤其是随着"低噪声放大器——混频器——中频放大器"这种低噪声微波接收机模型的广泛使用，对镜频干扰的抑制已逐渐成为整机低噪声、抗干扰的最后难题。

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。