Results 61 to 70 of about 1,996 (169)

Preliminary study on rotational speed fluctuations of induction motor supplied with voltage containing subharmonics [PDF]

, 2016
Artykuł dotyczy wpływu subharmonicznych napięcia na wahania prędkości obrotowej silnika indukcyjnego klatkowego małej mocy. Badania wykonano metodą symulacyjną z wykorzystaniem wstępnego dwuwymiarowego modelu polowego silnika indukcyjnego.
Hallmann, D., Gnaciński, P.
core   +1 more source

Research of hieroglyphic signs using audiovisual digital analysis methods

Discrete and Continuous Models and Applied Computational Science
A study of ancient written texts and signs showed that the hieroglyphs and structure of the archaic sentence have much in common with the modern Chinese language.
Maia A. Egorova, Alexander A. Egorov
doaj   +1 more source

FREQ‐NESS Reveals Age‐Related Differences in Frequency‐Resolved Brain Networks During Auditory Recognition and Resting State

Annals of the New York Academy of Sciences, Volume 1562, Issue 1, August 2026.
We adapted the FREQ‐NESS pipeline to event‐related MEG data from 140 adults during a melody‐recognition task, revealing an age‐related reorganization of frequency‐specific brain networks. Younger adults showed task‐related reduction in the prominence of alpha networks, whereas older adults maintained prominent slower alpha networks (8.6–10.0 Hz) across
Chiara Malvaso, Gemma Fernández‐Rubio, Mattia Rosso, Elisa Serra, Vera Rudi, Peter Vuust, Morten L. Kringelbach, Claudia Testa, Leonardo Bonetti   +8 more
wiley   +1 more source

Embodied Responses to Harmony and (Poly)Rhythm: An Integrated Ratio‐Based Perception‐Action Framework

Annals of the New York Academy of Sciences, Volume 1562, Issue 1, August 2026.
Harmony and rhythm perception are often studied separately, yet both reveal a shared sensitivity to low‐order integer ratios. In harmony, intervals like the octave (2:1) and fifth (3:2) predict consonance and ease of encoding. In rhythm, patterns with simple ratios (e.g., 2:1, 3:2) are easier to perceive, reproduce, and remember.
Nicola Di Stefano, Edward Large, Charles Spence   +2 more
wiley   +1 more source

Subharmonics, Chaos, and Beyond [PDF]

, 2011
While studying finite amplitude ultrasonic wave resonance in a one dimensional liquid-filled cavity, which is formed by a narrow band transducer and a plane reflector, subharmonics of the driver's frequency were observed in addition to the expected ...
Cantrell, John H., Yost, William T., Adler, Laszlo   +2 more
core  

Experimental characteristics of spatial subharmonics in BSO

, 1995
The generation of spatial subharmonics in BSO is characterized experimentally. The frequency shift of the subharmonic beam is measured in heterodyne detection, threshold values for the subharmonic generation are measured, and the optimum frequency shift ...
Johansen, P.M., Olsen, T., Hansen, R.S.
core   +1 more source

Noninvasive Focal Gene Delivery into the Cerebellum of Non‐Human Primates using Focused Ultrasound

Advanced Science, Volume 13, Issue 37, 3 July 2026.
Focal and non‐invasive viral vector delivery in non‐human primates remains a major challenge in translational neuroscience. Low‐intensity focused ultrasound was used to transiently open the blood–brain barrier and enable targeted gene delivery to the cerebellum.
Noelia Esteban‐García, José A. Pineda‐Pardo, Inés Trigo‐Damas, Marta Gutiérrez, Marta Castillo‐Ortiz, Megan Carrillo, Alejandro Reinares‐Sebastian, Víctor Medina‐Chavarrías, Itay Rachmilevitch, Masahiko Takada, José A. Obeso, Javier Blesa   +11 more
wiley   +1 more source

A new in silico model to precisely design focused ultrasound brain therapies

Medical Physics, Volume 53, Issue 7, July 2026.
Abstract Background Focused ultrasound (FUS) combined with microbubbles enables transient and noninvasive blood–brain barrier (BBB) opening, facilitating targeted drug delivery. However, accurate treatment planning remains difficult due to inter‐patient anatomical variability and the common assumption in simulations that brain tissues behave like water.
Allegra Conti, Marta Grossi, Patricia Cardoso De Andrade, Andrea Duggento, Nicola Toschi   +4 more
wiley   +1 more source

Subharmonic solutions for nonautonomous second-order Hamiltonian systems

Electronic Journal of Differential Equations, 2012
In this article, we prove the existence of subharmonic solutions for the non-autonomous second-order Hamiltonian system $ddot{u}(t)+V'(t,u(t))=0$. Also we study the minimality of their periods, when the nonlinearity $V'(t,x)$ grows faster than $|x ...
Mohsen Timoumi
doaj  

Field Observations of Intermittent Cross‐Shore Bed Load Transport on a Low‐Energy Beach

Journal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract Low‐energy sandy beaches typically have a rippled bed, and the presence of bed forms can strongly affect net sediment transport rates under combined forcing of waves and currents. In case low‐energetic forcing is combined with coarse sediment, bed load transport is an important mechanism to understand transport processes on such beaches.
Marlies van der Lugt, Noémie Fritsch, Matthieu de Schipper, Ad Reniers, Meagan Wengrove, France Floc'h   +5 more
wiley   +1 more source