Results 51 to 60 of about 797,061 (291)

A Spatial Resolution-Based Evaluation Method for Subpixel Registration Algorithms

Optics
Digital image correlation (DIC) technology is widely employed in speckle-based measurement techniques, including X-ray speckle tracking. By enhancing DIC’s measurement capability to the subpixel scale through subpixel registration technology, the ...
Fan Li, Junliang Yang, Hui Zhang, Pingquan Wang   +3 more
doaj   +1 more source

Studying diastology with speckle tracking echocardiography: The essentials

Annals of Cardiac Anaesthesia, 2017
Diastolic dysfunction is common in cardiac disease and an important finding independent of systolic function as it contributes to the signs and symptoms of heart failure. Tissue Doppler mitral early diastolic velocity (Ea) combined with peak transmitral early diastolic velocity (E) to obtain E/Ea ratio provides an estimate of the left ventricular (LV ...
Arindam Choudhury, Rohan Magoon, Vishwas Malik, Poonam Malhotra Kapoor, S Ramakrishnan   +4 more
openaire   +3 more sources

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

ECOCARDIOGRAFIA PRIN SPECKLE TRACKING: UN INSTRUMENT AVANSAT PENTRU DIAGNOSTICUL PRECOCE ȘI STRATIFICAREA RISCULUI ÎN PATOLOGIA CARDIOVASCULARĂ

Arta Medica
Introducere. Bolile cardiovasculare sunt principala cauză de mortalitate globală, impunând necesitatea unor metode diagnostice performante pentru depistarea precoce a disfuncției miocardice, fapt ce a condus la emergența ecocardiografiei prin speckle ...
Ecaterina Argint, Ana Garaz, Viorica Ochișor, Valeriu Revenco   +3 more
doaj   +1 more source

3D-speckle-tracking echocardiography correlates with cardiovascular magnetic resonance imaging diagnosis of acute myocarditis – An observational study

International Journal of Cardiology: Heart & Vasculature, 2022
Background: The diagnostic importance of three-dimensional (3D) speckle-tracking strain-imaging echocardiography in patients with acute myocarditis remains unclear.
Philip Roger Goody, Sebastian Zimmer, Can Öztürk, Angela Zimmer, Jens Kreuz, Marc Ulrich Becher, Alexander Isaak, Julian Luetkens, Atsushi Sugiura, Felix Jansen, Georg Nickenig, Christoph Hammerstingl, Vedat Tiyerili   +12 more
doaj   +1 more source

Single-axis combined shearography and digital speckle photography instrument for full surface strain characterization [PDF]

, 2005
Full characterization of the surface strain requires the measurement of six displacement gradient components of the surface strain tensor. The out-of-plane displacement gradient component may be directly measured using the full-field speckle ...
Fu, S., Tatam, Ralph P., James, Stephen W., Groves, Roger M.   +3 more
core   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

Advanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti, Kubra Kocak, Andrea Michel, Enrico Cavarzerani, Ali Raza, Petr Rohzin, Nouha Loudhaief, Saimir Frroku, Nicolò Baldovin, Hazrat Bilal, Alvise Perosa, Maurizio Selva, Flavio Rizzolio, Luca Sbuelz, Sabrina Tamburini, Domenico De Fazio, Giovanni Antonio Salvatore   +16 more
wiley   +1 more source

Speckle Tracking Imaging in Patients with Pulmonary Hypertension

Journal of Cardiovascular Imaging, 2021
Right ventricular (RV) systolic dysfunction is a strong predictor of mortality in pulmonary hypertension (PH). The goal of this study was to investigate whether right atrium (RA) and RV myocardial strain related to PH using speckle tracking echocardiography provide a superior estimation of RV systolic function than 2-dimensional (2D)-echo.This cross ...
Omar Prieto, Tomás Francisco Cianciulli, Alejandro Stewart-Harris, Andrea Rodriguez, María Cristina Saccheri, Jorge Alberto Lax, Lucia Raquel Kazelián, Laura Vanina Argento, Gerardo Manuel Marambio, Juan Alberto Gagliardi   +9 more
openaire   +3 more sources

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

Advanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang, Xinglong Pan, Zhiwei Li, Wanheng Lu, Chang Liu, Yi Zhou, Guo Tian, Ghim Wei Ho   +7 more
wiley   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

Advanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li, Jun Xu, Dezhong Xu, Zhaohui Zhang, Jiyi Li, Daxian Cao, Kefu Chen, Mizi Fan   +7 more
wiley   +1 more source