Results 61 to 70 of about 31,014 (138)

Shedding light on the parasite communities and diet of the deep‐sea shark Deania profundorum (Smith & Radcliffe, 1912) (Squaliform: Centrophoridae) from the Avilés Canyon (southern Bay of Biscay)

Journal of Fish Biology, EarlyView.
Abstract Deep‐sea elasmobranchs are less resilient to the increasing scale of anthropogenic impacts such as fisheries, owing to their life‐history traits. The necessity for proper management measures is hampered by the scant knowledge on these taxa and their biology. Here we provide the first comprehensive insight into the parasite infracommunities and
Wolf Isbert, Cristina Rodríguez‐Cabello, Francisco E. Montero, Maite Carrassón, Inmaculada Frutos, Ana Pérez‐del‐Olmo   +5 more
wiley   +1 more source

Matched steering vector searching based direction-of-arrival estimation using acoustic vector sensor array

EURASIP Journal on Wireless Communications and Networking, 2019
The acoustic vector sensor (AVS) array is a powerful tool for underwater target’s direction-of-arrival (DOA) estimation without any bearing ambiguities.
Yu Ao, Ling Wang, Jianwei Wan, Ke Xu
doaj   +1 more source

Impact of a substance use screening program on racial disparities in urine toxicology testing

Pregnancy, Volume 2, Issue 2, March 2026.
Abstract Objective To evaluate whether implementing a standardized substance use screening program reduced racial disparities in urine toxicology (Utox) testing among delivery admissions. Methods We conducted a retrospective cohort study of delivery admissions at a single academic center from June 2019 to June 2025. To address known disparities in Utox
Mariam Naqvi, Amin Tavakoli, Camelita S. Thrift, Allison Henry, Jennifer Astasio, Farnaaz Kia, Naomi Greene, Sarah J. Kilpatrick   +7 more
wiley   +1 more source

DOA Estimation of GNSS Signals Based on Deconvolved Conventional Beamforming

Remote Sensing
The Direction of Arrival (DOA) parameter is a key parameter in directional channel modeling for GNSS systems and multipath suppression. However, achieving high-precision, low-complexity DOA estimation of multiple signal sources without requiring a known ...
Jian Wu, Chenglong Li, Honglei Lin, Xiaomei Tang, Feixue Wang   +4 more
doaj   +1 more source

DoA Prediction Based Beamforming with Low Training Overhead for Highly-Mobile UAV Communication with Cellular Networks

Applied Sciences, 2020
In supporting communications with unmanned aerial vehicles (UAVs) as aerial user equipments (aUEs) in cellular systems, the current beamforming schemes based on channel state estimation are facing severe challenges from the pilot contamination effect ...
Tianxiao Zhao, Chunbo Luo, Jianming Zhou, Dechun Guo, Ning Chen, Pablo Casaseca-de-la-Higuera   +5 more
doaj   +1 more source

Experimental validation of direction of arrival estimation for high chirp‐rate linear frequency modulated radar signals

IET Radar, Sonar & Navigation, 2021
Direction of arrival (DOA) estimation for signals with large time‐bandwidth products is very important in modern communication and radar systems. Traditional narrowband DOA estimation algorithms are not accurate for such wideband signals.
Ronald Mulinde, Manik Attygalle, Syed Mahfuzul Aziz   +2 more
doaj   +1 more source

Broadband DOA estimation using Convolutional neural networks trained with noise signals

, 2017
A convolution neural network (CNN) based classification method for broadband DOA estimation is proposed, where the phase component of the short-time Fourier transform coefficients of the received microphone signals are directly fed into the CNN and the ...
Chakrabarty, Soumitro, Habets, Emanuël. A. P.   +1 more
core   +1 more source

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

Advanced Functional Materials, Volume 36, Issue 12, 9 February 2026.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To, Jiachen Du, Cyril Decroze, Laure Huitema, Aurelian Crunteanu, Hang Wong   +5 more
wiley   +1 more source

Strategies to Improve the Lipophilicity of Hydrophilic Macromolecular Drugs

Advanced Healthcare Materials, Volume 15, Issue 5, 2 February 2026.
Hydrophilic macromolecular drugs can be successfully lipidized by covalent attachment of lipids, by hydrophobic ion pairing with negatively or positively charged surfactants, and by dry or wet reverse micelle formation. Lipophilicity enhancement of hydrophilic macromolecules has several benefits including stability and bioavailability improvement ...
Sera Lindner, Stefan Keim, Soheil Haddadzadegan, Odile Fernandez Romero, Katrin Zöller, Gabriel Stern, Ilaria Cesi, Krum Kafedjiiski, Andreas Bernkop‐Schnürch   +8 more
wiley   +1 more source

Novel two-dimensional DOA estimation with L-shaped array

EURASIP Journal on Advances in Signal Processing, 2011
Two-dimensional (2D) direction-of-arrival (DOA) estimation has played an important role in array signal processing. In this article, we address a problem of bind 2D-DOA estimation with L-shaped array.
Xiaofei Zhang, Jianfeng Li, Lingyun Xu
doaj