introduction:although several treatment approaches have been proposed for tinnitus, there are currently no food and drug administration (fda)-approved agents available to treat this condition. in this study, we evaluated the effect of gabapentin on the sensation of subjective tinnitus in patients with acoustic trauma referring to the ear, nose and throat (ent) clinic of taleghani hospital durin...

results certain correlations were found between fundamental frequency in vowel and total vhi, physical, functional and emotional domains of vhi in group 1 (r = 0.636, 0.649, 0.613 and 0.592 respectively). there was good correlation between speaking fundamental frequency and total vhi and its subscales - except the physical subscale - were also correlated. in group 2, the correlations between ji...

Scanning Acoustic Microscopy (SAM) can deliver information on mechanical properties. For the investigation of bone microstructure we found the acoustic impedance as the most suitable parameter.A spatial resolution of approximately 1 um at 1 GHz allows morphological studies at the level of cellular structures. For quantitative analysis at high frequencies a smooth and plane surface is essential....

The present study is focused on the characterization of fatigue damage features in carbon/epoxy laminates under mode-II loading conditions. To this aim, a sinusoidal cyclic load was applied to End-Notched Flexural (ENF) specimens and behavior investigated. Scanning Electron Microscope (SEM) used identify fracture surface, i.e. fiber imprints, cusps, roller striations. It found that features, su...

The use of metal foams as permanent cores in casting products is a promising strategy. It aims to improve the properties cast components by adding certain foam features (e.g., lightweight, high specific stiffness, impact energy/vibration absorption ability, and good acoustic insulation properties). eliminates steps removal, treatment, compulsory recycling for traditional temporary sand cores. H...

Q235 steel is widely used in engineering and construction. Therefore, it important to identify the damage mechanism acoustic emission (AE) response of material ensure safety structures. In this study, an AE monitor system situ tensile test with optical microscope were investigate insight into process steel. The surface specimen was polished etched before order improve quality micrographs. Two k...