نتایج جستجو برای: light and noise

تعداد نتایج: 16914688  

Journal: :Journal of the Optical Society of America B 1997

Journal: :Journal of the Optical Society of America. A, Optics, image science, and vision 2005
Yimin Wang Ivan Tomov J Stuart Nelson Zhongping Chen Hyungsik Lim Frank Wise

Broadband light generation from a single-mode optical fiber was developed for high-resolution optical coherence tomography (OCT). No noise amplification was observed for light broadened by self-phase modulation. The investigation showed that the intensity noise of light broadened by self-phase modulation in a single-mode optical fiber was much lower than that of continuum light from a microstru...

ژورنال: Hormozgan Medical Journal 2007
Aghamolaei, T, Golbabaei, F, Nasiri, P, Shahtaheri, S.J, Zare, M,

Introduction: Nowadays, noise exposure is one of the most important industrial health problems. Noise exposure can cause hearing loss and many other health problems. So, paying attention to the noise exposure problem should be of main priority in industrial health programs. This study was conducted in an oil producing region, aimed to assess noise pollution and noise induced hearing loss. Met...

Journal: :The Journal of Korean Institute of Communications and Information Sciences 2011

ابراهیمی, محمدحسین , اکبر زاده, آرش , ذاکریان, سید ابوالفضل , عباسی, میلاد , منظم اسماعیل پور, محمدرضا,

Introduction: Installation of wind turbines in residential areas due to their unique sound characteristics may cause noise annoyance. Noise annoyance can increase the risk of health problems and sleep disturbance. Thus, this study was conducted to assess the effect of wind turbine noise annoyance on sleep disturbance among the Manjil wind farm workers. .Material and Method: All the Manjil wind...

2009
Nikolaos Gianniotis Peter Tiño Steve Spreckley Somak Raychaudhury

We present a probabilistic generative approach for constructing topographic maps of light curves from eclipsing binary stars. The model defines a low-dimensional manifold of local noise models induced by a smooth non-linear mapping from a low-dimensional latent space into the space of probabilistic models of the observed light curves. The local noise models are physical models that describe how...

Abdolamir Allameh, Ali Khavanin Masoud Motallebi Kashani Mehdi Akbari Ramezan Mirzaee Seyyed Bagher Mortazavi

Noise induced hearing loss (NIHL) is one of the most important occupational disease worldwide. NIHL has been found potentiate by simultaneous carbon monoxide (CO) exposure. Free radicals have been implicated in cochlear damage resulted from the exposure to noise and due to the CO hypoxia. This study examined whether α-tocopherol administration, as a free radical scavenger, causes the attenuatio...

Abdolamir Allameh, Ali Khavanin Masoud Motallebi Kashani Mehdi Akbari Ramezan Mirzaee Seyyed Bagher Mortazavi

Noise induced hearing loss (NIHL) is one of the most important occupational disease worldwide. NIHL has been found potentiate by simultaneous carbon monoxide (CO) exposure. Free radicals have been implicated in cochlear damage resulted from the exposure to noise and due to the CO hypoxia. This study examined whether α-tocopherol administration, as a free radical scavenger, causes the attenuatio...

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