نتایج جستجو برای: relative intensity noise

تعداد نتایج: 736319  

Journal: :Applied Optics 1996

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Journal: :Optics Express 2005

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Journal: :IEEE Transactions on Signal Processing 1997

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Journal: :Physical Review A 1992

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1994
R. Val

We examine the e ects of small white Gaussian noise perturbations on a harmonically forced Du ng oscillator. For speci c values of the parameters, the noise-free system admits two coexisting steady-state attractors. The presence of noise induces transitions from one attractor to the other, however small the noise intensity may be. As a rst step, the equation of motion is transformed into a syst...

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Journal: :The Journal of the Acoustical Society of America 1977

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ژورنال: سلامت کار ایران 2023
Divani, Raziye, Gharib, Seifollah, karami, Masoume, Taban, Ebrahim,

Introduction: employees have a significant impact on the organization productivity and efficiency. On the other hand human performance may have effect by environmental conditions. The purpose of this research was to investigate the association between workplace environmental factors, mental fatigue, and worker performance in open plan offices. Material and Methods: This descriptive-analytical...

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Journal: :auditory and vestibular research 0
seyyedeh zeynab nureddini department of audiology, school of rehabilitation, shahid beheshti university of medical sciences, tehran, iran ali mohammadzadeh department of audiology, school of rehabilitation, shahid beheshti university of medical sciences, tehran, iran majid ashrafi department of audiology, school of rehabilitation, shahid beheshti university of medical sciences, tehran, iran seyyed mehdi tabatabai department of statistics, school of rehabilitation, shahid beheshti university of medical sciences, tehran, iran leyla jalilvand karimi department of audiology, school of rehabilitation, shahid beheshti university of medical sciences, tehran, iran

background and aim: speech understanding almost never occurs in silence. verbal communication often occurs in environments where multiple speakers are talking. in such environments, babbling noise masks speech comprehension. consonants, in comparison to vowels, are more sensitive to noise masking. consonants provide most acoustic information needed for comprehending the meaning of the word. sin...

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ژورنال: مجله علمی دانشگاه علوم پزشکی بیرجند 2008
برخورداری, ابوالفضل, حلوانی, غلامحسن, زارع, محسن,

Background and Aim: Noise induced hearing loss is one of the most common occupational diseases in the world. It is thus introduced as one of the ten principle work-related diseases. According to the estimation of WHO, noise approximately causes a daily loss of 4 million US dollars throughout the world. Materials and Methods: This cross-sectional and analytical study was carried out on 100 worke...

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Journal: :Scientific Reports 2021

Abstract Echolocating bats adapt their emissions to succeed in noisy environments. In the present study we investigated if echolocating humans can detect a sound-reflecting surface presence of noise and intensity echolocation (i.e. clicks) changes systematic pattern. We tested people who were blind had experience echolocation, as well sighted no prior study. used an echo-detection paradigm wher...

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