Results 31 to 40 of about 3,123,896 (307)

Method for virtual optical sectioning and tomography utilizing shallow depth of field

Journal of the Optical Society of America A, 2022
A method is proposed for high-resolution, three-dimensional reconstruction of internal structures of objects from planar transmission images. The described approach can be used with any form of radiation or matter waves, in principle, provided that the depth of field is smaller than the thickness of the sample.
Timur E. Gureyev, Harry M. Quiney, Leslie J. Allen   +2 more
openaire   +3 more sources

An indirect training approach for implicit constitutive modelling using recurrent neural networks and the virtual fields method

Computer Methods in Applied Mechanics and Engineering
Accurate material description is crucial to achieve high-quality results in computational analysis software. Phenomenological constitutive laws generalize the material behavior observed in simple mechanical tests.
R. Lourenço, P. Georgieva, Elías Cueto, A. Andrade-Campos   +3 more
semanticscholar   +1 more source

The Virtual Fields Method for Extracting Constitutive Parameters From Full-Field Measurements: a Review [PDF]

Strain, 2006
ABSTRACT:The virtual fields method has been developed for extracting constitutive parameters from full‐field measurements provided by optical non‐contact techniques for instance. It is based on the principle of virtual work written with some particular virtual fields.
Grédiac, M., Pierron, F., Avril, S., Toussaint, Evelyne   +3 more
openaire   +2 more sources

The dynamic Virtual Fields Method on rubbers at medium and high strain rates

EPJ Web of Conferences, 2015
Elastomeric materials are widely used for energy absorption applications, often experiencing high strain rate deformations. The mechanical characterization of rubbers at high strain rates presents several experimental difficulties, especially associated ...
Yoon Sung-Ho, Siviour Clive R.
doaj   +1 more source

Local mechanical characterization of cardiovascular tissues: methods, challenges, and pathways to clinical use

Frontiers in Mechanical Engineering
Cardiovascular tissues exhibit complex mechanical behaviors that are nonlinear, anisotropic, and spatially heterogeneous. These local and regional variations play a critical role in disease initiation, progression, and treatment outcomes, yet ...
Dong Qiu, Dar Weiss
doaj   +1 more source

Identification of Constitutive Parameters Governing the Hyperelastic Response of Rubber by Using Full-Field Measurement and the Virtual Fields Method [PDF]

Residual Stress, Thermomechanics & Infrared Imaging and Inverse Problems, Volume 6, 2019
In this study, the Virtual Fields Method (VFM) is applied to identify constitutive parameters of hyperelastic models from a heterogeneous test. Digital image correlation (DIC) was used to estimate the displacement and strain fields required by the ...
A. Tayeb, J. Cam, M. Grédiac, E. Toussaint, F. Canévet, Eric Robin, X. Balandraud   +6 more
semanticscholar   +1 more source

Mixing Mechanism of Microfluidic Mixer with Staggered Virtual Electrode Based on Light-Actuated AC Electroosmosis

Micromachines, 2021
In this paper, we present a novel microfluidic mixer with staggered virtual electrode based on light-actuated AC electroosmosis (LACE). We solve the coupled system of the flow field described by Navier–Stokes equations, the described electric field by a ...
Liuyong Shi, Hanghang Ding, Xiangtao Zhong, Binfeng Yin, Zhenyu Liu, Teng Zhou   +5 more
doaj   +1 more source

Perspectives in educating molecular pathologists on liquid biopsy: Toward integrative, equitable, and decentralized precision oncology

Molecular Oncology, EarlyView.
Liquid biopsy enables minimally invasive, real‐time molecular profiling through analysis of circulating biomarkers in biological fluids. This Perspective highlights the importance of training pathologists through integrative educational programs, such as the European Masters in Molecular Pathology, to ensure effective and equitable implementation of ...
Marius Ilié, Umberto Malapelle, Catherine Alix‐Panabières, Claus Lindbjerg Andersen, Sandra Chlebowski, Vivien Lake, Caroline Lacoux, Virginie Lespinet‐Fabre, Olivier Bordone, Simon Heeke, Christophe Bontoux, Ellen Heitzer, Klaus Pantel, Paul Hofman   +13 more
wiley   +1 more source

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

FEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini, Nicolò Antonelli, Gianluca Molla   +2 more
wiley   +1 more source

Integrated Thermomechanical Characterization of Metals Using the Virtual Fields Method

Key Engineering Materials, 2022
In this paper, the possibility of characterizing the thermomechanical behavior of metals using the virtual fields method (VFM) and suitable specimens with heterogeneous strain and temperature fields was demonstrated using simulated experiments. The used geometry is a double-notched tensile test with a Gaussian distribution of temperature over the ...
Rossi, Marco, Lattanzi, Attilio, Morichelli, Luca   +2 more
openaire   +1 more source