Results 61 to 70 of about 5,419,576 (229)

Spatial polarimetric time-frequency distribution based DOA estimation: combining ESPRIT with MUSIC

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
Spatial spectrum estimation technology has always been the focused research project in an array signal processing of High Frequency Surface Wave Radar (HFSWR).
Aijun Liu   +4 more
doaj   +1 more source

Time Delay Estimation from Low Rate Samples: A Union of Subspaces Approach

open access: yes, 2009
Time delay estimation arises in many applications in which a multipath medium has to be identified from pulses transmitted through the channel. Various approaches have been proposed in the literature to identify time delays introduced by multipath ...
Eldar, Yonina C., Gedalyahu, Kfir
core   +3 more sources

Consensus on the Management of Anesthetic Agents During Digestive Motility Measurements and Proposal of a Standardized Protocol for Anesthesia (French Neuro Gastroenterology Group GFNG and Committee of Anesthetic French Experts)

open access: yesNeurogastroenterology &Motility, Volume 38, Issue 4, April 2026.
Anesthesia can alter measurements during digestive endoscopies, yet no standardized protocol currently exists. Two expert groups—the French Neuro‐Gastroenterology Group (GFNG) and anesthesiologists—used the Delphi method to reach a consensus on which drugs have an influence (91 amendments), ultimately resulting in a proposed anesthesia protocol (28 ...
Domitille Renard   +29 more
wiley   +1 more source

Sulfate‐Directed Silver Dendrites with Enhanced Stability for Ultrasensitive SERS‐Based Therapeutic Drug Monitoring

open access: yesAdvanced Science, Volume 13, Issue 17, 23 March 2026.
This study presents sulfate‐directed silver dendrites (s‐AgDs) as oxidation‐resistant SERS substrates with long‐term stability, reproducibility, and sub‐picomolar sensitivity. Sulfate ions guide anisotropic growth and protect the surface, enabling improved performance over 7 months under ambient conditions.
Aradhana Dwivedi   +6 more
wiley   +1 more source

Shaped extensions of singular spectrum analysis [PDF]

open access: yes, 2014
Extensions of singular spectrum analysis (SSA) for processing of non-rectangular images and time series with gaps are considered. A circular version is suggested, which allows application of the method to the data given on a circle or on a cylinder, e.g.
Golyandina, Nina, Shlemov, Alex
core  

Source localization for underwater acoustics using esprit algorithm

open access: yesIOP Conference Series: Materials Science and Engineering, 2021
Abstract In order to perform the underwater source localization, vector sensors play a major role. If vector sensors are used as an array, the gain can be improved and the accuracy can also be improved. In furtherance of finding the direction of arrival (DOA) of the sound signal which is nothing but the source localization, there are ...
N. Kasthuri, S. Balambigai, S. Yuvashree
openaire   +1 more source

CLEC18A interacts with sulfated glycosaminoglycans and controls clear cell renal cell carcinoma progression

open access: yesThe FEBS Journal, Volume 293, Issue 3, Page 709-728, February 2026.
CLEC18A is a previously poorly characterized C‐type lectin. We mapped the expression of CLEC18A to the proximal tubule of the kidney and found CLEC18A to interact with sulfated glycosaminoglycans on proteoglycans. Furthermore, we found that CLEC18A plays an important role in hindering the progression of clear cell renal cell carcinomas in humans and in
Gustav Jonsson   +10 more
wiley   +1 more source

Direction-of-Arrival Estimation with Coarray ESPRIT for Coprime Array

open access: yesSensors, 2017
A coprime array is capable of achieving more degrees-of-freedom for direction-of-arrival (DOA) estimation than a uniform linear array when utilizing the same number of sensors.
Chengwei Zhou, Jinfang Zhou
doaj   +1 more source

An Improved Two-Stage Spherical Harmonic ESPRIT-Type Algorithm

open access: yesSymmetry, 2023
Sensor arrays are gradually becoming a current research hotspot due to their flexible beam control, high signal gain, robustness against extreme interference, and high spatial resolution.
Haocheng Zhou   +4 more
semanticscholar   +1 more source

In Situ 4D STEM of LiNiO2 Particles Heated in an Oxygen Atmosphere: Toward Investigation of Solid‐State Batteries Under Realistic Processing Conditions

open access: yesSmall Methods, Volume 10, Issue 2, 22 January 2026.
An experimental protocol, including sample preparation and experimental setup, for heating large, thinned cathode active material particles in situ in an oxygen atmosphere is presented. Using 4D scanning transmission electron microscopy nanobeam diffraction and ex situ measurements, the structural evolution of LiNiO2 during heating in oxygen is ...
Thomas Demuth   +7 more
wiley   +1 more source

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