نتایج جستجو برای: noise induced

تعداد نتایج: 1162389  

Journal: :The Journal of the Acoustical Society of America 1973

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Journal: :Europhysics News 2005

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Journal: :Progress of Theoretical Physics 2006

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2015
Andy Adler Fabian Braun Josep Solà

A common choice to select λ so that a measure of noise performance is equal: a common choice is the noise figure (NF). However, this is only applicable when comparing algorithms with identical data. It is thus not suitable to compare across electrode positions or stimulation strategies (as illustrated in the example below). Noise Figure Distinguishability as a noise performance metric for EIT a...

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Journal: Iranian Journal of Otorhinolaryngology 2015
Abolfazl Hakimi, Amir Houshang Mehrparvar, Mansour Esmailidehaj, Ziba Loukzadeh,

Introduction: After presbycusis, noise-induced hearing loss is the second most common cause of acquired hearing loss. Numerous studies have shown that high-intensity noise exposure increases free radical species; therefore, use of antioxidants to detoxify the free radicals can prevent cellular damage in the cochlea. We studied the potential hearing protective effect of different doses of ascorb...

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Journal: Journal of Occupational Health and Epidemiology 2022
Mohammad Javad sheikhmozafari, Omran Ahmadi,

Background: Noise and noise-induced hearing loss (NIHL) are the most prevalent workplace problems. The best way to prevent NIHL is to monitor people's annual noise exposure (ANE) using tools, such as questionnaires. The present study aims to assess reliability of the Persian version of the Noise Exposure Questionnaire (NEQ) and NIHL scores among workers. Materials & Methods: This descriptive s...

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ژورنال: طب کار 2013
امجد سردرودی, حسین, درمحمدی, علی , موسوی, سعید , گلمحمدی, رستم,

Background: Noise Induced Hearing Loss (NIHL) is one of the most common occupational diseases in the world. About 16% of hearing loss is associated with noise exposure in the workplaces. The aim of this research was investigation of the relationship between noise exposure and hearing loss. Methods: This cross-sectional study was conducted in 2010 on1062 workers in Tabriz Tractor Manufacturing ...

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2004
PENTTI KURONEN Martti Sorri Kalevi Jokinen Einar Laukli

This research on military aviation noise was conducted because the personnel working with military aircraft were concerned about noise induced hearing damage. In addition, comprehensive data on hearing impairments and occupational exposure of military pilots in the Finnish Air Force was not available. Moreover, data on the effects of overflight noise of military jets was necessary for the evalu...

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Journal: :iranian red crescent medical journal 0
raheleh hashemi habybabady department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran seyed bagher mortazavi department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran; department of occupational engineering, faculty of medical sciences, jalal ale ahmad highway, tarbiat modares university, tehran, ir iran. tel: +98-9124799702 ali khavanin department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran ramazan mirzaei department of occupational health, health promotion research center, zahedan university of medical sciences, zahedan, ir iran

conclusions the effect of coadministration of nac and coq10 was neither additive nor synergic in protecting against nihl. results the temporary hearing changes that occurred 1-day post exposure were not significantly different in all groups (p > 0.05). the total recovery (between 1 - 21 days after noise exposure) varied by a frequency increase between 1.08 - 19.10 in the noise group compared to...

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ژورنال: پژوهش در پزشکی 2005
محمدرضا فتح العلومی, , سید عباس صفوی نائینی, , علی فتاحی بافقی, ,

Background : Noise-induced hearing loss is among the most common cause of occupational-related hearing loss. Nowadays, noise-induced hearing loss is a disastrous event of industrial world that may influence all races, ethnics and age groups.  Methods : This cross sectional study was performed on 100 workers exposed to noisy environment (greater 85db) in Azmayesh factory. Having excluded all con...

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نمودار تعداد نتایج جستجو در هر سال

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  • " +i+ "
    • "; pgn_html+=pgn_li; } document.getElementById("pgn-ul").innerHTML=pgn_html var pgn_links = document.querySelectorAll('.mypgn'); pgn_links.forEach(function(pgn_link) { pgn_link.addEventListener('click', paginate) }) } function post_and_fetch(data,url) { showLoading() xhr = new XMLHttpRequest(); xhr.open('POST', url, true); xhr.setRequestHeader('Content-Type', 'application/json; charset=UTF-8'); xhr.onreadystatechange = function() { if (xhr.readyState === 4 && xhr.status === 200) { var resp = xhr.responseText; resp_json=JSON.parse(resp) resp_place = document.getElementById("search_result_div") resp_place.innerHTML = resp_json['results'] search_meta = resp_json['meta'] update_search_meta(search_meta) update_pagination() hideLoading() } }; xhr.send(JSON.stringify(data)); } function unfilter() { url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":"unfilter", "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } function deactivate_all_bars(){ var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(bar) { bar.dataset.active = false bar.style = "stroke:#71a3c5;" }) } year_chart.on("created", function() { var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(check) { check.addEventListener('click', checkIndex); }) }); function checkIndex(event) { var yrchart = document.querySelectorAll('.ct-bar'); var year_bar = event.target if (year_bar.dataset.active == "true") { unfilter_res = unfilter() year_bar.dataset.active = false year_bar.style = "stroke:#1d2b3699;" } else { deactivate_all_bars() year_bar.dataset.active = true year_bar.style = "stroke:#e56f6f;" filter_year = chart_data['labels'][Array.from(yrchart).indexOf(year_bar)] url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":filter_year, "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } } function showLoading() { document.getElementById("loading").style.display = "block"; setTimeout(hideLoading, 10000); // 10 seconds } function hideLoading() { document.getElementById("loading").style.display = "none"; } -->