Intra and inter-speaker variability is studied as a way to better understand how voice can be used as biometric data. Formant values from 328,016 exemplars of the 10 French oral vowels uttered by 111 speakers were compared to estimate their speaker discrimination power. The vowels /œ/, /ɛ/ and /a/ appear to convey more idiosyncratic information than other oral vowels. A more comprehensive phone...

Zinc ferrite nanoparticles have wide range of the applications in field Electronics, Optoelectronics, Magnetics, Solar cell, Photocatalysts. With Al doping we modify their structural, magnetic and electrical properties zinc (ZnFe2O4). In present studies, were prepared by sol gel method using glycine as combustion agent. The effects concentration on morphological, optical, ferrites studied. x-ra...

This study investigates the source and status of a recent sound change in Shanghainese (Wu, Sinitic) that has been attributed to language contact with Mandarin. The change involves two vowels, /e/ and /ɛ/, reported to be merged three decades ago but produced distinctly in contemporary Shanghainese. Results of two production experiments show that speaker age, language mode (monolingual Shanghain...

A surrogate-based multi-objective optimization framework is employed in the design of natural gas liquefaction processes using reliable, black-box process simulation. The conflicting objectives are minimizing both power consumption and heat exchanger area utilization. Pareto solutions single-mixed refrigerant (SMR) propane-precooled mixed (C3MR) compared to determine suitability each terms ener...

Pulsed laser deposition was proved as a suitable method for hydroxyapatite (HA) coating of coaxial poly-ɛ-caprolactone/polyvinylalcohol (PCL/PVA) nanofibers. The fibrous morphology of PCL/PVA nanofibers was preserved, if the nanofiber scaffold was coated with thin layers of HA (200 nm and 400 nm). Increasing thickness of HA, however, resulted in a gradual loss of fibrous character. In addition,...

Axonal re-myelination in injured central nervous system (CNS) has been a scientific challenge. Focal delivery of Oligodendrocyte Progenitor Cells (OPCs) provides promising approach. We used a novel bioengineering technique to create co-electrospun nanofibers of Gelatin and Poly-ɛ-caprolactone (PCL) to be used as a scaffold for neural tissue regeneration. Growth and differentiation of Oligodendr...

AbstractControl of dielectric properties PVA/PoPDA-rGO-ZnO polymeric composites is an important issue in electrical applications. As a flexible nanocomposite for enhancing energy storage (Capacitors) and conductivity the polymer. The synthesis crystalline structure achieved using several facile preparation methods. study structural by x-ray diffraction (XRD), scanning electron microscopy (SEM),...