Results 31 to 40 of about 536,419 (307)

Shape Sensing for an UAV Composite Half-Wing: Numerical Comparison between Modal Method and Ko’s Displacement Theory

Aerospace, 2022
Shape sensing is the reconstruction of the displacement field of a structure from some discrete surface strain measurements and is a key technology for structural health monitoring. The aim of this paper is to compare two approaches to shape sensing that
Filippo Valoriani, Marco Esposito, Marco Gherlone   +2 more
doaj   +1 more source

Pancake-like antiphase domains in perfect nitrogen-expanded austenite by TEM characterization

Materials Research Express, 2023
Elongated superstructure diffraction spots were observed in perfect nitrogen-expanded austenite without stress or plastic strain, which was prepared by plasma-based low-energy nitrogen-ion implanting Fe-Cr-Ni austenitic alloy foils at low temperature of ...
H L Che, X Yang, M K Lei
doaj   +1 more source

Discontinuous Galerkin approximations in computational mechanics: hybridization, exact geometry and degree adaptivity [PDF]

, 2019
Discontinuous Galerkin (DG) discretizations with exact representation of the geometry and local polynomial degree adaptivity are revisited. Hybridization techniques are employed to reduce the computational cost of DG approximations and devise the ...
Giacomini, Matteo, Sevilla Cárdenas, Rubén   +1 more
core   +2 more sources

Reconstruction of myocardial tissue motion and strain fields from displacement-encoded MR imaging

American Journal of Physiology-Heart and Circulatory Physiology, 2009
A quantitative analysis of myocardial mechanics is fundamental to understanding cardiac function, diagnosis of heart disease, and assessment of therapeutic intervention. Displacement encoding with stimulated-echo (DENSE) magnetic resonance imaging (MRI) technique was developed to track the three-dimensional (3D) displacement vector of discrete ...
Yi, Liu, Han, Wen, Robert C, Gorman, James J, Pilla, Joseph H, Gorman, Gerald, Buckberg, Shawn D, Teague, Ghassan S, Kassab   +7 more
openaire   +3 more sources

Deformation Field Reconstruction Algorithm of Frame Structure Based on iBeam3 Element

Nanjing Hangkong Hangtian Daxue Xuebao
Structural deformation， as one of the important indicators of structural health monitoring， is crucial for evaluating structural strength performance. In practical engineering， due to engineering use and other factors， the number and placement of strain ...
LI Longfei, TAO Chongcong, ZHANG Chao, JI Hongli   +3 more
doaj   +1 more source

Reconstruction of nuclear quadrupole interaction in (In,Ga)As/GaAs quantum dots observed by transmission electron microscopy

, 2015
A microscopic study of the individual annealed (In,Ga)As/GaAs quantum dots is done by means of high-resolution transmission electron microscopy. The Cauchy-Green strain-tensor component distribution and the chemical composition of the (In,Ga)As alloy are
Mehrtens, T., Müller-Caspary, K., Petrov, M. Yu., Reuter, D., Rosenauer, A., Sokolov, P. S., Wieck, A. D.   +6 more
core   +1 more source

py4DSTEM: a software package for multimodal analysis of four-dimensional scanning transmission electron microscopy datasets [PDF]

, 2020
Scanning transmission electron microscopy (STEM) allows for imaging, diffraction, and spectroscopy of materials on length scales ranging from microns to atoms.
Anapolsky, Abraham, Barnard, Edward S, Brown, Hamish G, Ciston, Jim, DaCosta, Luis Rangel, Donohue, Jennifer, Ercius, Peter, Gopal, Chirranjeevi, Herring, Patrick, Hughes, Lauren A, Janish, Matthew T, Kennedy, Ellis, Minor, Andrew M, Ophus, Colin, Pekin, Thomas C, Pelz, Philipp M, Savitzky, Benjamin H, Schneider, Matthew M, Scott, Mary, Zeltmann, Steven E, Zhao, Shiteng   +20 more
core   +1 more source

Physics‐Informed Deep‐Learning For Elasticity: Forward, Inverse, and Mixed Problems

Advanced Science, 2023
Elastography is a medical imaging technique used to measure the elasticity of tissues by comparing ultrasound signals before and after a light compression. The lateral resolution of ultrasound is much inferior to the axial resolution.
Chun‐Teh Chen, Grace X. Gu
doaj   +1 more source

The effect of postmastectomy radiation therapy on breast implants. Material analysis on silicone and polyurethane prosthesis [PDF]

, 2018
The pathogenic mechanism underlying capsular contracture is still unknown. It is certainly a multifactorial process, resulting from human body reaction, biofilm activation, bacteremic seeding, or silicone exposure.
Bini, Fabiano, Casella, Donato, Cassese, Raffaele, Familiari, Giuseppe, Fratoddi, Ilaria, Lo Torto, Federico, Marinozzi, Franco, Matassa, Roberto, Miglietta, Selenia, Relucenti, Michela, Ribuffo, Diego, Sciubba, Fabio, Tombolini, Vincenzo, Vaia, Nicola   +13 more
core   +1 more source

General Reconstruction of Elastic Strain Fields from their Longitudinal Ray Transform

SIAM Journal on Applied Mathematics
We develop an algorithm for reconstruction of elastic strain fields from their Longitudinal Ray Transform (LRT) in either two or three dimensions. In general, the LRT only determines the solenoidal part of a symmetric tensor field, but elastic strain fields additionally satisfy mechanical equilibrium, an extra condition that allows for full ...
C. M. Wensrich, S. Holman, W. R. B. Lionheart, M. Courdurier, A. Polyakova, I. Svetov, T. Doubikin   +6 more
openaire   +2 more sources