Results 61 to 70 of about 6,597 (217)

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

open access: yesAdvanced Materials, Volume 38, Issue 36, 26 June 2026.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel   +7 more
wiley   +1 more source

Adaptive Based Beamforming for Direction-of- Arrival (DOA) Estimation

open access: yesCVR Journal of Science & Technology, 2015
Nowadays mobile users require increased coverage, quality of service and capacity in wireless communications. By using adaptive antennas at both transmitter and receiver in wireless communication, we can easily reach the required improvement. In this paper Adaptive Antenna plays a major role to improve the performance of wireless communication systems.
openaire   +2 more sources

Association between multiple‐ambulance dispatches and clinical outcomes for patients with dispatcher‐unrecognized out‐of‐hospital cardiac arrests

open access: yesHong Kong Journal of Emergency Medicine, Volume 33, Issue 3, June 2026.
Abstract Background Out‐of‐hospital cardiac arrests (OHCAs) are an important global health burden, and risk factors for patients with dispatcher‐unrecognized OHCAs have not yet been well investigated. Objectives The purpose of this study was to evaluate the association between multiple‐ambulance dispatches and clinical outcomes in patients with ...
Min Seol Seo   +8 more
wiley   +1 more source

Improved CPD based DOA estimation of nested array

open access: yesDianxin kexue, 2021
In order to avoid searching the peak value in space domain, when estimating nested array’s the direction of direction of arrival(DOA), the canonical polyadic decomposition(CPD) was applied into the nested array, namely using the one time singular value ...
Sibei CHENG   +4 more
doaj   +2 more sources

GPUMDkit: A User‐Friendly Toolkit for GPUMD and NEP

open access: yesMaterials Genome Engineering Advances, Volume 4, Issue 2, June 2026.
GPUMDkit is a comprehensive and user‐friendly toolkit for GPUMD and NEP programs, integrating format conversion, structure sampling, property calculation, and visualization into a unified interface, substantially lowering the barrier to entry for machine‐learning molecular dynamics simulations with GPUMD and NEP.
Zihan Yan   +22 more
wiley   +1 more source

General direction-of-arrival tracking with acoustic nodes [PDF]

open access: yes
In this paper, we propose a particle filter acoustic direction-of-arrival (DOA) tracker to track multiple maneuvering targets using a state space approach. The particle filter determines its state vector using a batch of DOA estimates.
McClellan, James H., Cevher, Volkan
core   +1 more source

Multi‐Species Constraints Resolve Methane Source Versus Sink Changes: Lessons From 2020

open access: yesEarth's Future, Volume 14, Issue 6, June 2026.
Abstract Satellite observations show that atmospheric methane (CH4) increased by a record‐breaking 19 ppb in 2020, but the causes are unclear because of uncertain impacts from COVID‐related pollutant shifts on hydroxyl (OH) radical concentrations. Here we employ an ensemble of constraints to simultaneously quantify methane sources and sinks for 2020 in
Xueying Yu   +7 more
wiley   +1 more source

Multiple Snapshot Matching Pursuit For Direction Of Arrival (Doa) Estimation

open access: yes, 2007
Publication in the conference proceedings of EUSIPCO, Poznan, Poland ...
openaire   +3 more sources

Direction Of Arrival (DOA) Estimation Using Array Signal Processing [PDF]

open access: yes, 2018
Array signal processing is an important eld in Signal Processing. It has various applica-tions in the eld of communication, radar, sonar as well as speech processing.
Dhabale, Ashmika
core  

A Priori-Based Subarray Selection Algorithm for DOA Estimation

open access: yesSensors, 2020
A finer direction-of-arrival (DOA) estimation result needs a large and dense array; it may, however, encounter the mutual coupling effect, which degrades the performance of DOA estimation.
Linghao Zeng   +2 more
doaj   +1 more source

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