UNLABELLED The electrical stimulation generated by the Cochlear Implant (CI) may improve the neural synchrony and hence contribute to the development of auditory skills in patients with Auditory Neuropathy/Auditory Dyssynchrony (AN/AD). AIM Prospective cohort cross-sectional study to evaluate the auditory performance and the characteristics of the electrically evoked compound action potential...

BACKGROUND The Auditory Nerve Recovery Function (REC) may be extracted from the Electrically Evoked Compound Action Potential (ECAP). ECAP may be influenced by the stimulation received (or the deprivation of stimulation) and by the etiology of the hearing loss, consequently it might affect the REC. AIM To verify whether there is a correlation between the REC and each of the following factors:...

OBJECTIVES The study objectives were to compare the rate of neural recovery and speech perception performance in children with auditory neuropathy spectrum disorder (ANSD) and children with sensorineural hearing loss (SNHL) from other etiologies. STUDY DESIGN Cohort study. SETTING Academic hospital and cochlear implant center. SUBJECTS AND METHODS Ten children with ANSD were matched based...

Increasing the yield stress of twinning-induced plasticity (TWIP) steels is a demanding task for modern materials science. This aim can be achieved by microstructure refinement induced heavy straining. We feature microstructural evolution and mechanical performance high-manganese TWIP steel subjected to deformation treatment different combinations equal channel angular pressing (ECAP) rolling a...

Abstract The main aim of the current work is to investigate effect equal channel angular pressing (ECAP) processing parameters, namely, number passes, ECAP die angle, route type, and temperature on mechanical electrical properties pure copper (Cu). finite element method was used simulate homogeneity stress plastic strain distribution during processing. response surface methodology (RSM) identif...

Micro-forming with ultrafine-grained (UFG) materials is a promising direction for the fabrication of micro-electro-mechanical systems (MEMS) components due to the improved formability, good surface quality, and excellent mechanical properties it provides. In this paper, micro-compression tests were performed using UFG pure aluminum processed by equal-channel angular pressing (ECAP) with subsequ...

Background: the Auditory Nerve Recovery Function (REC) may be extracted from the Electrically Evoked Compound Action Potential (ECAP). ECAP may be influenced by the stimulation received (or the deprivation of stimulation) and by the etiology of the hearing loss, consequently it might affect the REC. Aim: to verify whether there is a correlation between the REC and each of the following factors:...

Nowadays, equal channel angular pressing, known as the ECAP process, is one of the most popular methods for manufacturing ultra-fine grained (UFG) materials. In this paper, Ecap process has been carried out on pure copper and 6012 aluminum alloy up to six passes by route . Principal attention was paid to the influence of parameters such as diameter, material, and the height of billet on mechani...

Among different SPD techniques, Equal channel Angular Pressing has attracted the most attentions, because of applying large strain to solid bulk materials. In this research, ECAP process up to 6 passes was carried out on a pure copper and a 6012 Al-Mg-Si alloy with BC route in ECAP dies with Φ=120 and Ψ=20 and diameter of 20and 10 millimeter respectively. Moreover, X-ray diffraction (XRD) syste...