According to a Cornell University study, even low-level noise in open-style offices can result in higher levels of stress and lower task motivation.

据康奈尔大学研究表明，在开放式的办公室中即使是非常低的噪音也使得员工们的工作压力变大，完成工作的动机降低。

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To determine and analyze both groups' temporary threshold shift (TTS) following high level noise exposure.

测量两组高强度噪声暴露后的暂时性阈移(TTS)。

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Based on the study of the influence of the quantification noise and the gray level noise on target feature image, the error model of the target feature image centroid coordinates is built.

深入研究了灰度噪声、量化噪声对目标特征图像的影响及其误差模型，并由此建立了目标特征图像质心坐标提取误差模型。利用仿真试验分析了灰度噪声、量化噪声导致的航天器间相对状态参数测量的误差分布。

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Cause noise pollution: People living close to turbines claim that the low level noise is causing stress-related illness.

BBC: Last Updated: Tuesday June 07 2005 15:38 GMT

To start with, the handset will feature a dedicated Waze launcher key for GPS navigation duties, and will also sport "high level noise reduction and echo cancellation, " along with hands-free voice activation.

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Opponents said the new runway would create an unacceptable level of noise and pollution and destroy the landscape.

BBC: Redhill Aerodrome in revised Surrey runway bid