降低铁路客车力内噪声,提高乘坐舒适度已经成为铁路客车车辆设计者越来越重视的问题。
The designers of railcars have paid attention to noise inside railcars in order to make passengers comfortable.
近年来,在生命系统中特别是基因表达过程中的内噪声引起了人们的广泛重视,产生了一大批研究结果。
Recently, the study of intrinsic noise in life system, specially, in gene expression processes has drawn ever-growing interests and a variety of important results were reported.
由于内噪声强度随着系统体积的变化而改变,因此,这一现象也证明了系统尺度共振,即最佳尺度效应的存在。
Since the magnitude of the internal noise is changed via the variation of the system size, these phenomena also demonstrate a kind of system size resonance.
并对系统的频率特性进行了分析,表明基于该技术的微加速度计系统在工作频段内噪声能够得到有效的消除,且具有近似的线性相位。
The analyses of frequency characteristic of the system demonstrate that the noise in effective frequency band is eliminated and the phase of the system is approximately linear.
并针对驾驶员耳旁噪声进行了实验研究,结果表明:基于神经网络的单一工况车内噪声预测模型,可在频域内很好地预测出特定点的车内噪声。
The experiment for the noise at the area around the driver' s ears is conducted, the results show that this model can predict very well the interior noise around particular point in frequency domain.
这种芯片将大大超过目前的计算机模拟速度,现有设备对细胞内大范围非线性回路的噪声影响建模时效率非常低下。
Such chips would be much faster than computer simulations now, which are highly inefficient at modeling the effects of noise in the large-scale nonlinear circuits within cells.
因此,双螺杆压缩机与蜗杆压缩机相比,在相同转速下单位内排气次数少,气流脉动大,气流噪声大。
Therefore, double screw compressor and worm compressor compared, in the same speed of the units inside less number of exhaust air ripple, big air flow noise.
约翰逊噪声在很宽的频率范围内呈均匀分布,所以减小噪声带宽能够有效地降低测量中的噪声。
Johnson noise is uniformly distributed over a wide frequency range, so reducing the noise bandwidth effectively decreases the noise in the measurement.
系统内的空气可能妨碍水的正常循环,可能导致运行噪声发生。
Air in the system can prevent proper circulation of water and may cause noisy operation.
同时,在不灵敏频带内(如图象边缘区)引入一定噪声以达到整个恢复图象的噪声平滑。
Meanwhile, some noises are added into frequency bands where it is less visible in order to achieve noise smooth of overall reconstructing image.
本论文主要研究隧道内具有抗滑低噪声特性的OGFC沥青混凝土路面的配合比设计方法、抗滑降噪性能和施工工艺等。
The major research thesis tunnels with low noise characteristics of anti-slide OGFC asphalt concrete pavement mix design methods, anti-sliding noise reduction performance and construction crafts.
油液阻尼器受指数型高斯色噪声外激励时,活塞在油腔内的运动可用一阶非线性动力学方程描述。
The motion of plunger of oleo damper excited by colored Gaussian noise with exponential correlation time is governed by first order nonlinear differential equation.
本文中描述用振幅峰值的方法,测量面接触型晶体管OC70,OC71和点接触型晶体管2N32A内窄频带低频率噪声的振幅分布。
The amplitude distribution of narrow hand semiconductor noise in junction type OC70, OC71 and point contact type 2N32A transistors were measured experimentally by the "maximum amplitude" method.
我们观察了神经干细胞系细胞是否可以替代耳蜗内强噪声暴露后所致的细胞缺失。
We examined whether cells from a neural stem cell line could replace cochlear cell types lost after exposure to intense noise.
分析了中央空调组合机组内离心通风机噪声产生的机理。介绍了几种降噪措施。实际应用中取得良好效果。
The mechanism of noise generation of fan for center air-conditioner is analyzed. A few measures of noise reducing is introduced. Good result is obtained in practical use.
放大器采用片内集成的螺旋电感实现低噪声和单片集成。
The on-chip spiral inductors were utilized for the low noise performance and monolithic integration.
在某综合办公楼工程中,为减少噪声污染,我们采用了穿孔铝板、内填离心玻璃隔音棉的吸音墙面的新技术。
For reducing noise pollution, we adopted a new technology of perforated aluminium panel sound-absorbent wall with centrifugally glass-wool inside for a certain office building complex project.
风道设计中要求风道的气流噪声必须控制在允许的范围内。
Airflow noise in duct should be controlled within the range of standard during duct design.
带阻滤波器也常用于抗干扰设备中阻止某个频带范围内的干扰及噪声信号通过。
Bandstop filter is also commonly used in anti-jamming equipment to prevent interference within a frequency band and noise signals.
分组判决算法利用检测窗内所有数据帧,在广义似然比准则下对相关模板进行联合估计,进一步压制了模板噪声。
The group decision algorithm based on GLRT principle was utilized to estimate correlation template through all data frames in detection window and could offer better noise suppression.
以试验和频谱分析为依据,说明汽车动力转向泵定子内曲线是影响泵噪声的重要因素。
According to the experiment and spectra analysis, the paper explains that the stator curve of the automobile power turning pump is the important factor of affecting the pump noise.
反映滚动轴承故障的特征周期信号处于较低频带内,容易被噪声淹没,难以检测。
The fault characteristic periodic signals of the rolling bearing are in low frequency band and often buried in the noise.
结果在噪声刺激期腹膜内注射不同浓度普萘洛尔,对耳蜗血流和噪声暂时性阈移无影响。
Results The cochlear blood flow and noise-induced level of temporary threshold shift were not affected by different concentration of Propranolol during noise exposure.
因此,利用非线性随机动力学理论和方法对“细胞内钙离子振荡系统的噪声效应:相干共振”进行研究具有十分重要的生物学意义。
Thus, based on nonlinear theory and method, the study on the effect of the noise on coherence resonance in a calcium oscillations system is significant in biology.
提出一种基于正弦加噪声模型的说话人转换方法,着重讨论通过修改音素段内的声学参数实现说话人的转换。
A voice conversion approach with a sinusoidal plus noise model is introduced and a parametric conversion algorithm based on phoneme segments is discussed in this paper.
直齿共轭内啮合齿轮泵是一种新型低噪声液压元件。
Straight conjugate internal gear pump is a new kind of hydraulic component with low noise.
随机脉宽调制技术可以使逆变器输出电压的谐波成分均匀地分布在一个较宽的频率范围内,达到抑制噪声和机械振动的目的。
Random pulse width modulation technique can be used to distribute voltage harmonics over a wide frequency range and to realize the reduction of acoustic noise and vibration.
在频率域内,低噪声定位装置和相位平均技术可以提供振幅和假频谐振。
Low noise fixture and phase average technique provide the amplitude and spurious resonance in frequency domain.
在频率域内,低噪声定位装置和相位平均技术可以提供振幅和假频谐振。
Low noise fixture and phase average technique provide the amplitude and spurious resonance in frequency domain.
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