This paper presents a novel cost-effective automatic resonance tracking scheme with maximum power transfer for piezoelectric transducers (PTs). The conventional approaches compensate the PT complex factor correction schemes or drive it in using intricate loops limited operating range. proposed is based on bandpass filter (BPF) oscillator, exploiting PT's intrinsic point through sensing bridge. It guarantees and electrical converted into mechanical motion, regardless of process variations...

An enhancement in the power-conversion-efficiency (η) of a magneto-electric (ME) gyrator has been found by use Mn-substituted nickel zinc ferrite. A trilayer Mn-doped Ni0.8Zn0.2Fe2O3 and Pb(Zr,Ti)O3 η = 85% at low power conditions (∼20 mW/in3) ≥ 80% high (∼5 W/in3). It works close to fundamental electromechanical resonance both direct converse modes. The value is far highest reported so far, which due mechanical quality factor (Qm) magnetostrictive Such highly efficient ME gyrators with...

Despite decades of research, the field language evolution lacks a cohesive integrative account capable explicating linguistic throughout history modern humans. We review paleoanthropological and archaeological findings in search timeline for emergence human articulatory morphological features. Our synthesis shows that several behavioral innovations coincide with changes to would-be speech articulators. find significant reductions mandible masticatory muscles vocal tract anatomy hominin...

Despite decades of research, the field language evolution lacks a cohesive integrative account capable explicating linguistic throughout history modern humans. We review paleoanthropological and archaeological findings in search timeline for emergence human articulatory morphological features. Our synthesis shows that several behavioral innovations coincide with changes to would-be speech articulators. find significant reductions mandible masticatory muscles vocal tract anatomy hominin...

Abstract Despite decades of research on the emergence human speech capacities, an integrative account consistent with hominin evolution remains lacking. We review paleoanthropological and archaeological findings in search a timeline for modern articulatory morphological features. Our synthesis shows that several behavioral innovations coincide changes to would-be articulators. find significant reductions mandible masticatory muscles vocal tract anatomy fossil record incorporation processed...

A new dual current-mode controller produces a fast, accurate constant-power high-frequency ac output, with maximum current and voltage limits for an electrosurgical generator. The regulation of output power is achieved near-deadbeat control, without measurement or feedback the current. Compared to existing technology, prototype generator reduces unintended tissue damage by significantly improving power, while reducing complexity parts count.

Oral diadochokinetic (DDK) tasks are common research and clinical tools used to test oromotor skills across different age groups. They include alternating motion rate (AMR) sequential (SMR) tasks. AMR involve repeating a single syllable, whereas SMR varying syllables. DDK performance is mostly discussed regarding the increasing rates of from childhood adulthood, although less attention given differences between Here, syllabic were contrasted in three populations: 7-9-year-old children,...

The phonological function of vowels can be maintained at fundamental frequencies (fo) up to 880 Hz [Friedrichs, Maurer, and Dellwo (2015). J. Acoust. Soc. Am. 138, EL36–EL42]. Here, the influence talker variability multiple response options on vowel recognition high fos is assessed. stimuli (n = 264) consisted eight isolated (/i y e ø ε a o u/) produced by three female native German talkers 11 within range 220–1046 Hz. In closed-set identification task, 21 listeners were presented excised...

Simultaneous generation of two AC outputs at different frequencies from a single-phase inverter offers practical benefits and control flexibility for many industrial applications. In this paper, dual-frequency selective harmonic elimination (DFSHE) modulation method is proposed to generate individual in an H-bridge, while diminishing undesired harmonics. Two elements are synthesized independently the scheme, thus flexible power regulation achieved via method. addition, both unipolar bipolar...

A new system architecture for electrosurgical generators inherently produces the ideal output characteristic with near-deadbeat control. Compared to existing technology, this converter significantly improves power regulation, leading improved surgical outcomes by minimizing thermal spread and tissue charring.

Electrosurgery involves the use of high-frequency (typically 100-500 kHz) alternating current (AC) to elicit a clinical response in tissue (e.g., cutting or cauterization) using plasma arc. Standard electrosurgical generators (ESGs) are based on resonant inverters, which constrain output frequency and waveshape. This paper describes fast tracking ESG capable shaping AC waveform over range frequencies, thus providing improved flexibility control electrosurgery applications. The proposed is...

In a between-subject perception task, listeners either identified full words or vowels isolated from these at F0s between 220 and 880 Hz. They received two written as response options (minimal pair with the stimulus vowel in contrastive position). Listeners' sensitivity (A′) was extremely high both conditions all F0s, showing that phonological function of can also be maintained F0s. This indicates sounds may carry strong acoustic cues departing common formant frequencies do not rely on...

There is a broad consensus in the literature that vowel-specific formant patterns differ as function of gender (men/women) or age (adults/children) due to different average vocal tract sizes. Although an additional influence fundamental frequency F0 discussed corresponding normalization approaches, relating sounds adults and children exhibit same F0, with higher than children, men women are barely compared. Investigating vowels men, women, producing varying we observed (1) possible decrease...

Speakers are able to speak in synchrony another speaker or a recording of speaker.The present research studied whether and, if yes, speakers change their speech rhythm when synchronizing speaker.We developed measure (SRratio) which monitors on scale between 0 and 1 the durational characteristics speaker's synchronous closer his/her own read he/she is to.Four (synchronization speakers) twelve recorded sentences produced by four other (target were studied.The we analyzed %V nPVI-v.Results for...

This study presents a temporal co-registration method combining electromagnetic articulography (EMA) and electroencephalography (EEG) to capture the neural planning execution phases of speech with high precision. Traditional EEG alignment based on acoustic vocal onset is often inaccurate due variable lag between articulatory onsets. Our approach synchronizes EMA-derived kinematics data, addressing these challenges. We also examined interaction EMA systems, focusing integrity signals in...

<title>Abstract</title> Non-primate mammals do not typically employ the tongue to affect resonant properties of vocal tract in manner human articulate speech. We report observations Hudson Bay wolves’ (Canis lupus hudsonicus) howling behavior, performed with visible dynamic movements. show that wolves actively change shape their through apical gestures (i.e., tip arches anteriorly toward palate), a phenomenon changes vowel quality A combination phonetic and acoustic analysis, video content...

The question of vowel intelligibility as a function F0 is still matter debate. Above all concerning sounds produced at F0s exceeding related statistical F1 in citation-form words (‘oversinging’ F1), it unclear whether category perception inevitably shifts towards the neighboring with higher or can be maintained such cases. In this study, we tested listeners’ long German vowels /i-y-e-o-e-a-o/ by trained female speaker context minimal pair (/l-V-gen/) nine F0-levels between 220 and 880 Hz....

Recent studies have shown that accurate vowel category perception can be maintained at fundamental frequencies (fo) up to least 880 Hz. In such cases, the typical first formant frequency (F1) of most vowels is exceeded by fo and vocal tract transfer function a high degree undersampled. It seems therefore unlikely common patterns are main acoustic features used listeners recognize fos. Here, we present results from multidimensional scaling (MDS) analyses calculated averaging cochlea-scaled...

Designing instruments and power supplies for electrosurgery (a critical tool in modern surgical practice) is a difficult proposition; large number of competing variables affect an even larger electrosurgical performance metrics. This paper describes the design apparatus used to tightly control experimental variables, record high-speed data from numerous sensors, process results into form which better elucidates underlying physical mechanisms gives insight potential improvements.

A number of needs exist for applying biocompatible glues to tissues treatment chronic wounds, ulcers, diffuse bleeding, and surgical sealing organ or vessel tissue. Presently, in situ deposition is achieved through dripping brushing adhesive solutions directly onto tissues. These application methods could be improved greater usability efficacy. This paper describes a novel device which utilizes combination coaxial electrospinning blow-spinning allow polymer tissue gluing welding...

Previous research showed that, in singing, vowel qualities of isolated sounds can be discriminated up to a fundamental frequency (F0) about 500 Hz. However, indications are reported literature for discrimination on F0 &amp;gt; Hz singing (raised larynx condition, CVC context) as well speech-like sounds. In this study, we tested at high speech using minimal pairs build from eight long German vowels. Words were produced mode 650 by two female speakers. For all samples except the words...