Results 61 to 70 of about 123,247 (141)

Evidence for Transient, Uncoupled Power and Functional Connectivity Dynamics

Human Brain Mapping, Volume 46, Issue 4, March 2025.
Amplitude envelope data were extracted from source‐reconstructed MEG data. A novel generative model, M‐DyNeMo, was used to extract uncoupled power and FC network dynamics, which responded differently to task stimuli. ABSTRACT There is growing interest in studying the temporal structure in brain network activity, in particular, dynamic functional ...
Rukuang Huang, Chetan Gohil, Mark Woolrich   +2 more
wiley   +1 more source

Closed-Loop Wireless Power Transfer with Adaptive Waveform and Beamforming: Design, Prototype, and Experiment [PDF]

arXiv, 2021
In this paper, we design, prototype, and experiment a closed-loop radiative wireless power transfer (WPT) system with adaptive waveform and beamforming using limited feedback. Spatial and frequency domains are exploited by jointly utilizing multi-sine waveform and multi-antenna beamforming at the transmitter in WPT system to adapt to the multipath ...
arxiv  

Assessment of a Single‐Element Scanning System for Enhanced Photoacoustic Imaging of Brain Hemorrhage

Journal of Biophotonics, Volume 18, Issue 3, March 2025.
We demonstrated the superior efficacy of the single‐element scanning method over the transducer array system in the context of brain hemorrhage detection. This research highlights the potential for enhancing hemorrhage detection sensitivity through careful design and optimization of the proposed method, thereby increasing its viability for clinical ...
Juliana Benavides Lara, Ravi Prakash, Kamran Avanaki   +2 more
wiley   +1 more source

Adaptive digital beamformer intellectual property based on high-level synthesis

The Journal of Engineering, 2019
Adaptive digital beamformer (ADBF) is effective in suppressing unexpected interferences arriving at the antenna array. An ADBF intellectual property (IP) using the floating point data type has been developed with high-level synthesis (HLS) technology ...
Shengxiang Zhu, Jinchang Zhang, Zhiyi He, Min He   +3 more
doaj   +1 more source

Overview of Therapeutic Ultrasound Applications and Safety Considerations: 2024 Update

Journal of Ultrasound in Medicine, Volume 44, Issue 3, Page 381-433, March 2025.
A 2012 review of therapeutic ultrasound was published to educate researchers and physicians on potential applications and concerns for unintended bioeffects (doi: 10.7863/jum.2012.31.4.623). This review serves as an update to the parent article, highlighting advances in therapeutic ultrasound over the past 12 years.
Kenneth B. Bader, Frederic Padilla, Kevin J. Haworth, Nicholas Ellens, Diane Dalecki, Douglas L. Miller, Keith A. Wear, Bioeffects Committee of the American Institute of Ultrasound in Medicine, Kenneth Bader, Jason T. Nomura, Aiguo Han, Alfred C.H. Yu, Alycen Wiacek, Diane Dalecki, Douglas L. Miller, Kevin J. Haworth, Holly S Lay, Kenneth Hoyt, Inder Raj Singh Makin, Jacques S. Abramowicz, Marie Muller, Siddhartha Sikdar, Zheng Feng Lu, Mitra Aliabouzar, Corinne E Wessner, J. Brian Fowlkes, Gerald R. Harris, Jennifer E. Bagley, John Donlon, Keith A. Wear, Kurt Sandstrom, Paul L. Carson, Felicia M. Toreno, Frederic Padilla, Kevin J. Haworth, Douglas L. Miller, Wayne Moore, Jacques S. Abramowicz, Jennifer E. Bagley, Keith A. Wear, Shahram Vaezy   +40 more
wiley   +1 more source

Pseudo‐MRI Engine for MRI‐Free Electromagnetic Source Imaging

Human Brain Mapping, Volume 46, Issue 2, February 1, 2025.
A tool, pseudo‐MRI engine, was implemented to generate subject‐specific template MRIs based on scalp digitization that can readily be used for MEG/EEG source imaging. The geometrical and source‐imaging similarity with real MRI proves that the method can be an alternative to individual MRIs in various MEG/EEG applications.
Amit Jaiswal, Jukka Nenonen, Lauri Parkkonen   +2 more
wiley   +1 more source

Magnetoencephalography studies in migraine and headache disorders: A systematic review

Headache: The Journal of Head and Face Pain, Volume 65, Issue 2, Page 353-366, February 2025.
Abstract Background Understanding the neural mechanisms underlying migraine and other primary headache disorders is critical for the development of long‐term cures. Magnetoencephalography (MEG), an imaging modality that measures neuronal currents and cortical excitability with high temporal and superior spatial resolution, has been increasingly used in
Raghavan Gopalakrishnan, Nitesh Singh Malan, Nymisha Mandava, Eric J. Dunn, Neil Nero, Richard C. Burgess, MaryAnn Mays, Olivia Hogue   +7 more
wiley   +1 more source

An adaptive protocol for distributed beamforming

, 2011
We study distributed adaptive beamforming in networks of wireless nodes. In particular, we observe that for the synchronisation of carrier phases, distinct algorithmic configurations are optimal in various environmental settings and propose a protocol that utilises organic computing principles to find optimum parameters.
Sigg, Stephan, Beigl, Michael
openaire   +4 more sources

Adaptive Beamforming with a Maximum Negentropy Criterion [PDF]

2008 Hands-Free Speech Communication and Microphone Arrays, 2008
In this paper, we address an adaptive beamforming application in realistic acoustic conditions. After the position of a speaker is estimated by a speaker tracking system, we construct a subband-domain beamformer in generalized sidelobe canceller (GSC) configuration. In contrast to conventional practice, we then optimize the active weight vectors of the
Kumatani, Kenichi, McDonough, John, Klakow, Dietrich, Garner, Philip N., Li, Weifeng   +4 more
openaire   +4 more sources

Physical layer security in satellite communication: State‐of‐the‐art and open problems

IET Communications, Volume 19, Issue 1, January/December 2025.
This paper first classifies contemporary satellite communication networks into five domains and then analyse the use of PLS in each domain; these domains are hybrid satellite‐terrestrial networks, satellite‐based IoT, navigation satellite systems, FSO‐based satellites, and inter‐satellite communications.
Nora Abdelsalam, Saif Al‐Kuwari, Aiman Erbad   +2 more
wiley   +1 more source