Ultrahigh frequency ultrasound (>60 MHz) has emerged as a crucial actuating mechanism for non-contact manipulation, owing to its unique acoustic field properties. The traps microparticles mainly via the gradient force of radiation (ARF) on transverse plane, which is up hundreds nanonewtons. In theory, directly using ARF can strengthen manipulation force. Currently, direct implementation ...

this paper presents a new control structure to reduce torque ripple in switched reluctance motor. although srm possesses many advantages in motor structure, it suers from large torque ripple that causes some problems such as vibration and acoustic noise. in this paper another control loop is added and torque ripple is de ned as an objective function. by using fuzzy sliding mode strategy, the dc...

Acoustic comfort is directly related to enhanced well-being and performance of people. A typical challenge faced by architects acousticians achieve adequate acoustics while maintaining the aesthetics space reducing visual aspects acoustic materials elements. In this study, we present a biofiber-based coating as feasible solution improve environments preserving spaces. An thin layer absorption m...

Phonetic convergence is highly variable across studies, measures, and analyses. The current paper describes a study that examined multiple acoustic measures in concert with a perceptual measure of phonetic convergence. The study employed a shadowing task in which multiple talkers shadowed words from a set of models. Across different scales of analysis, the acoustic measures were highly variable...

We present a latent variable approach to the acoustic-toarticulatory mapping problem, where different vocal tract configurations can give rise to the same acoustics. In latent variable modelling, the combined acoustic and articulatory data are assumed to have been generated by an underlying low-dimensional process. A parametric probabilistic model is estimated and mappings are derived from the ...

It is widely acknowledged that pronunciations in spontaneous speech di er signi cantly from citation form. For this reason, pronunciation modeling has received considerable attention in recent automatic speech recognition literature. Most of the attention however has focussed on describing an alternate pronunciation as a di erent sequence of phonetic units using the same inventory of phones whi...