结论作业人员长期在平均噪声强度低于卫生标准下工作，仍可有一定程度的心电图改变和听力损失。
Conclusion ECG and hearing in workers could be affected with long-term exposure to medium low intensity noise, even if the exposure average level was lower than the limited level of hygienic standard.
结论平均等效声级可以作为评价和比较工业企业的噪声危害程度的综合指标。
Conclusion the average equivalent sound level maybe as comprehensive index to evaluate the noise hazard in industrial enterprises.
因为通常电声设备技术指标给出的是噪声准平均值电平，而不是噪声准峰值电平，这一点应加以注意。
Because normally the electro-acoustic equipment, technical specifications are given quasi-average noise level, rather than quasi-peak noise level, this should be noted.
由于高温噪声的不可避免，采用了移动平均方法，傅里叶变换滤波和小波分析的方法对其进行了数据降噪处理。
It is impossible to avoid noise at high temperature, so different mathematic methods, such as Savitzky-Golay method, FFT and wavelet methods have been adopted for denoising.
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.
用平均平滑周期图法分别估算出信号与噪声的功率谱密度函数。
The power spectrum of the noise and signal are estimated by the average smooth periodogram method.
研究表明，无序层中的杂质散射和粗糙界面散射都能抑制系统的微分电导、平均电流和散粒噪声功率。
It is shown that the differential conductance, average current and shot noise power are suppressed by the impurities and rough interface scattering.
时域平均法是从混有噪声的信号中提取周期性分量的最有效方法。
The time domain average method is an efficient method to extract period components from the signal mixed with noise.
测量断面的平均计数、噪声、冷区对比度及剖面曲线。
The mean counts, noise, contrast and profile curves of the slices were measured.
采用矩空间理论和高斯近似法分别得出该系统在多址干扰和白高斯噪声条件下的平均误码率表达式。
Based on moment space theory and Gaussian approximation method, expressions of average error probability for system with multiple-access interference and white Gaussian noise environment are derived.
对于射频噪声，通过平均距离频频法和频域陷波的方法可以去掉；
Radio frequency noise jamming can be deleted by the method of average range frequency spectrum and notching in frequency domain.
我们发现噪声可以破坏瞬时电流的周期性并削减长时平均电流的峰值。
We find that external noise can destroy the periodicity of the transient current and cancel the long-time average current peaks.
引入室内空气质量和噪声，结合温度、相对湿度、风速和平均辐射温度作为室内环境综合评价参数。
Introduces indoor air quality and noise level as integrated parameters along with air temperature, relative humidity, air velocity and mean radiant temperature.
利用中国74个测站1960 ~ 1991年日平均温度研究了中国月平均温度的气候噪声和潜在可预报性。
Climatic noise and potential predictability of monthly mean temperature have been studied based on the data at 74 stations selected over China from 1960 t0 1991.
研究了受色高斯噪声驱动的肿瘤细胞增长系统的瞬态态性质（平均首通时间T）。
The transient properties(mean first passage time T)of the tumor cell growth system driven by color Gaussian noise are investigated.
采用图像相加、偏微分、邻域平均等方法来消除图像噪声；
It includes the following aspects:adopting the Partial Differential Equation and Neighborhood Average smoothing methods to reduce image noises.
基于多径干扰、多址干扰和信道噪声的机理分析，推导了计算平均差错概率的有效近似公式。
An efficient approximation for expressions of the average error probability are developed based on considering the effects of multipath interference, multiple access interference and channel noise.
仿真实验表明，基于领域加权平均绝对值误差准则最优层叠滤波器也能在细节保持和滤除噪声方面寻找到比较合适的折衷点。 关键词：层叠滤波器；
Simulated experiments show that optimal stack filters based on neighboring weighted mean absolute criterion can also reach a good tradeoff between noise suppressing and detail preservation.
本研究表明，高温、振动、噪声复合因素使受试者的平均皮肤温度、直肠温度和出汗量显著增加。
Experiments showed that combined factors of high temperature, vibration and noise may cause remarkable increase of the mean skin and rectal temperature and amount of sweat.
本文给出了一种计算无噪声时具有正弦鉴相器的二阶锁相环捕捉特性的新方法，求得了每个差频周期的平均角频率牵引量。
A new method is presented for analyzing the acquisition behavior of second-order PLL with sinusoidal phase detector in the absence of noise.
其特点是显著性高、计算量小，并且不受噪声模型自回归阶次等于滑动平均阶次条件的限制。
This algorithm is characterized by its high significance and less computation, being not restricted to the condition that the autoregressive order should be equal to the moving average order.
结果听损检出率随平均等效声级的增加而呈明显的增加趋势，平均等效声级与噪声作业人员的听损检出率呈密切的指数正相关关系（相关系数r为0 812 45 ）。
Results The average equivalent sound level and the detectable rate of workers hearing loss were exponential positive correlation, the coefficient of correlation r was 0 812 45.
介绍了所用的二维光子计数斑点像探测系统的性能，分析了探测系统的光子噪声、附加噪声和其它更复杂的噪声对斑点图的平均功率谱和重谱的影响。
Then the influence on the average power spectrum and bispectrum of specklegrams caused by the photon noise, additive noise and more complex noises of other kinds in the detecting system .
本文介绍根据辐射噪声的平均功率谱的形状识别两种不同型号的船舶目标的方法。
This paper discusses methods of recognizing different kinds: of ship objects by the shape of averaged power spectrum of radiated noise. This paper considers the pre-processing of data first.
对由于图像采集、传输、量化过程中产生的热电子噪声，利用了邻域平均和加权中值滤波方法来有效地减小。
Averaging method of neighborhood and medium filtering method are used to effectively overcome thermionic noise as result of courses of image transferring, gathering and quantization and so on.
本文根据的一个数学定理，对受多个物理白噪声激励的极一般的一个自由度系统导出了随机平均方程。
Based on a theorem due to Hasminskii, a stochastic averaging equation is derived for a general system with one degree of freedom subject to physical white noise excitations.
运用WKBJ方法计算了电流平均值和电流平方的平均值，计算结果表明电流涨落是存在的，它是介观电路中主要的量子噪声。
By using the WKBJ method, the average of currents and square of the current are calculated, the results show the existence of the current fluctuation, which causes the noise in the circuits.
滑动平均模型辩识的困难是信息向量中存在不可测噪声项。
Difficulty of identification of moving average models lie in that unknown noise terms appear in the information vector.
通过硬件采集的VEP信号经过叠加平均处理后仍含有大量背景噪声，不能直接用于诊断分析。
After processing of overlaying and averaging, VEP Signal acquired by hardware still has a large amount of background noises and is unable to be used in diagnosis directly.
然后以主分量对小波系数进行重建的平均能量作为局部噪声能量的估计；
Second, the wavelet coefficients are reconstruct based on the top few principle components and the local noise energy is estimated based on the mean energy of reconstructed wavelet coefficients;
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