Results 41 to 50 of about 17,900,254 (159)

Optimal Design of Sparse Array for Ultrasonic Total Focusing Method by Binary Particle Swarm Optimization

open access: yesIEEE Access, 2020
Ultrasonic phased array technology is used in various fields. Traditional full phased arrays place elements in every position of a uniform lattice with half-wavelength spacing between the lattice points, so the hardware cost is very high.
Han Zhang   +3 more
doaj   +1 more source

Elastomeric 3D‐Printed Microenvironments Enable Nanonewton Force Measurements in Healthy and Diseased Human Pluripotent Stem Cell‐Derived Neuroepithelial Cells

open access: yesAdvanced Materials, EarlyView.
We present elastomeric three‐dimensional (3D) microstructures fabricated via two‐photon polymerization (2PP) and post‐processed through wet etching, for quantifying nanonewton (nN)‐scale forces applied by healthy and diseased neural cells. The mechanically characterized free‐standing beam architectures enable measurement of traction forces of ...
Pieter F. J. van Altena   +7 more
wiley   +1 more source

Inspection of Steel Welds Using Total Focusing Method Imaging [PDF]

open access: yes, 2016
The ultrasonic control of steel welds is crucial in the oil and gas transportation industry. The state-of-the-art method is zonal focusing which consists in focusing the ultrasonic beam at specific distances using a wedge in order to check the integrity ...
Hallal, Larbi   +3 more
core  

From Displacement to Angle: Diamond‐Based 3D Rotation Sensing for High‐Precision Cellular Force Measurement

open access: yesAdvanced Science, EarlyView.
Cellular forces are traditionally inferred from displacement measurements, which lack rotational information and are constrained by linear model assumptions. This work replaces displacement with rotational angle for the fundamental mechanical readout.
Linjie Ma   +8 more
wiley   +1 more source

Characterisation of small embedded two-dimensional defects using multi-view Total Focusing Method imaging algorithm [PDF]

open access: yes, 2021
Defect characterisation is an essential step of nondestructive testing which aims to determine the shape and the size of a defect once detected. The imaging algorithm multi-view Total Focusing Method (TFM) has been successfully used to accurately size ...
Bevan, Rhodri L T   +8 more
core   +1 more source

TFM 2019/20. Máster en Filología Clásica

open access: yes, 2022
Trabajos de Fin de Máster en Filología ...
AA. VV
core   +1 more source

SynNotch Receptors for Visualizing Immunoreceptor Force Transmission and Downstream Signaling In Vivo

open access: yesAdvanced Science, EarlyView.
A mechanically activated SynNotch reporter platform enables detection of force transmission through receptors as they mediate immune cell interactions. Targeting CD40 on B cells and TCR on T cells records force‐induced reporter activation across 2D coculture, 3D organoid, and implanted in mice, which also reveal force‐amplification of immune receptor ...
Menglan Li   +9 more
wiley   +1 more source

TFM 2020/21 (MESOB) Especialidad de Francés

open access: yes, 2023
Trabajo de Fin de Máster (MESOB) Especialidad de Francés Cecilia Muñoz Soberón - La competencia plurilingüe e intercultural en clase de FLE con alumnos y alumnas de 1.º de Bachillerato en el IES Ramiro de Maeztu: una propuesta didáctica con escritoras ...
VV. AA
core   +1 more source

Research of total-focusing-imaging based on phase coherence and dB amplitude enhancement

open access: yesAIP Advances
To address the issue of weak defect visualization in the ultrasonic total-focusing method (TFM) after denoising, this paper integrates Phase Coherence Imaging (PCI) and dB amplitude enhancement (dB) with the TFM.
Nian Kun Pan, Bin Shao, Hua Chun Fang
doaj   +1 more source

Cerebral Small Vessel Disease in Immune‐Mediated Thrombotic Thrombocytopenic Purpura Patients During the Acute Phase and Disease Remission

open access: yesAmerican Journal of Hematology, EarlyView.
ABSTRACT Immune‐mediated thrombotic thrombocytopenic purpura (iTTP) is a life‐threatening thrombotic microangiopathy characterized by acute neurological manifestations and long‐term sequelae related to microvascular brain injury. Cerebral small vessel disease (cSVD), detectable on MRI through lacunes, microbleeds, white matter hyperintensities, and ...
Addolorata Truma   +13 more
wiley   +1 more source

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