نتایج جستجو برای: blast induced vibration

تعداد نتایج: 1045891  

Journal: :Hearing Research 2017
Scott Bressler Hannah Goldberg Barbara Shinn-Cunningham

Recent anecdotal reports from VA audiology clinics as well as a few published studies have identified a sub-population of Service Members seeking treatment for problems communicating in everyday, noisy listening environments despite having normal to near-normal hearing thresholds. Because of their increased risk of exposure to dangerous levels of prolonged noise and transient explosive blast ev...

Journal: :Free radical biology & medicine 2017
Xiaoping Du Matthew B West Qunfeng Cai Weihua Cheng Donald L Ewert Wei Li Robert A Floyd Richard D Kopke

Cochlear neurodegeneration commonly accompanies hair cell loss resulting from aging, ototoxicity, or exposures to intense noise or blast overpressures. However, the precise pathophysiological mechanisms that drive this degenerative response have not been fully elucidated. Our laboratory previously demonstrated that non-transgenic rats exposed to blast overpressures exhibited marked somatic accu...

Journal: :Occupational and Environmental Medicine 1986

Journal: :Sustainability 2022

Blasting vibration could cause dynamic instability of rock masses within a critical steady state. To control the blasting vibration, it is necessary to understand complete response process under vibration. The Long Short-Term Memory (LSTM) technique uses blast monitoring data predict full waveform Based on LSTM, new prediction model proposed in this study. verify feasibility model, sample were ...

Journal: :The Tohoku journal of experimental medicine 1989
Y Koiwa N Hoshi T Ohyama T Takagi J Kikuchi H Honda T Takishima

We examined the left ventricular functional response to externally applied vibration using four canine open chest preparations. A sinusoidal 30 Hz vibration (2.7 mm in amplitude) was applied to the ventricular epicardium at each level of propranolol-induced myocardial depression. External vibration in control conditions induced no significant change either in peak left ventricular pressure (LVP...

Journal: :Journal of Applied Mechanics 1977

Journal: :Balkan medical journal 2014
Muharrem Cidem Ilhan Karacan Demirhan Diraçoğlu Aysel Yıldız Suat Hayri Küçük Murat Uludağ Kerem Gün Murat Ozkaya Safak Sahir Karamehmetoğlu

BACKGROUND Whole-body vibration (WBV) induces reflex muscle activity and leads to increased muscle strength. However, little is known about the physiological mechanisms underlying the effects of whole-body vibration on muscular performance. Tonic vibration reflex is the most commonly cited mechanism to explain the effects of whole-body vibration on muscular performance, although there is no con...

Barakat, Samira , Moradi, Behnam ,

Introduction: Long-term exposure to hand-arm vibration causes musculoskeletal disorders mainly in hand and shoulder. The purpose of this study was to determine the effect of sport and using anti-vibration gloves on the grip strength of workers exposed to the hand-arm vibration. Material and Methods: In this descriptive-interventionist study, 41workers working in one of the Isfahan metal indust...

2010
Ibolja Cernak

Due to complex injurious environment where multiple blast effects interact with the body parallel, blast-induced neurotrauma is a unique clinical entity induced by systemic, local, and cerebral responses. Activation of autonomous nervous system; sudden pressure increase in vital organs such as lungs and liver; and activation of neuroendocrine-immune system are among the most important mechanism...

Journal: :journal of mining and environment 2013
hassan bakhsandeh amnieh alireza mohammadi m mozdianfard

ground vibrations caused by blasting are undesirable results in the mining industry and can cause serious damage to the nearby buildings and facilities; therefore, controlling such vibrations has an important role in reducing the environmental damaging effects. controlling vibration caused by blasting can be achieved once peak particle velocity (ppv) is predicted. in this paper, the values of p...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید