Results 41 to 50 of about 63,244 (238)

Assessment of Skin in Patients With Systemic Sclerosis Using High‐Frequency Ultrasound and Shear Wave Elastography: A Comparative Study With Histology, Molecular, and Clinical Parameters

Arthritis Care &Research, EarlyView.
Objective Ultrasound (US) has been proposed as a potential tool for assessing skin fibrosis in systemic sclerosis (SSc). However, a large‐scale comparison of US‐based assessment with histologic markers of skin fibrosis has not been reported. We evaluated US‐based skin assessments for their face validity (differentiation between involved SSc and healthy
Ruhani Desai, Filemon Tan, Minghua Wu, Jeffery L. Browning, Samuel Theodore, Meng Zhang, Brian Skaug, Harshdeep Singh Chawla, Manmohan Singh, Salavat Aglyamov, Kirill V. Larin, Maureen Mayes, Shervin Assassi   +12 more
wiley   +1 more source

Emergent Mesoscale Phenomena in Magnetized Accretion Disc Turbulence

, 2012
We study how the structure and variability of magnetohydrodynamic (MHD) turbulence in accretion discs converge with domain size. Our results are based on a series of vertically stratified local simulations, computed using the Athena code, that have fixed
Armitage, Balbus, Balbus, Balbus, Beckwith, Blaes, Blaes, Blandford, Brandenburg, Colella, Colella, Davis, Evans, Flock, Flock, Fromang, Fromang, Gammie, Gardiner, Gardiner, Goodman, Gressel, Guan, Guan, Hawley, Hawley, Hawley, Hirose, Hirose, Hirose, Ingram, Jacob B. Simon, Johansen, King, Kris Beckwith, Lyra, Mignone, Miyoshi, Nelson, Noble, O’Neill, Pessah, Philip J. Armitage, Pringle, Sano, Shakura, Simon, Simon, Simon, Sorathia, Stone, Stone, Yang   +52 more
core   +1 more source

Hydrodynamic interaction between particles near elastic interfaces [PDF]

, 2016
We present an analytical calculation of the hydrodynamic interaction between two spherical particles near an elastic interface such as a cell membrane.
Daddi-Moussa-Ider, Abdallah, Gekle, Stephan   +1 more
core   +2 more sources

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

Advanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan, Manjusri Misra, Alexander Bardelcik, Stefano Gregori, Amar K. Mohanty   +4 more
wiley   +1 more source

Fluid replacement dynamics: evolving reservoir properties during hydrocarbon production in X-field, Niger Delta, Nigeria

Discover Geoscience
During hydrocarbon recovery, fluid replacement takes place in reservoirs, affecting the reservoir properties and consequently altering the production model and forecast. These attributes were utilized to refine fluid replacement modeling (FRM).
Rotimi Salami, Matthew E. Nton
doaj   +1 more source

Measurement of Thermo-Elastic Deformation of an Optic using a Polarization Based Shearing Interferometer

, 2012
A shearing interferometer is presented which uses polarization control to shear the wavefront and to modulate the interference pattern. The shear is generated by spatial walk-off in a birefringent crystal. By adjusting the orientation of the birefringent
Abramowitz, Agrawal, Fowels, Ghiglia, Hello, Hello, Kothiyal, Lu, Murukeshan, Nikogosyan, Rosso, Servin, Winkler, Yariv, Zhu Tuan   +14 more
core   +1 more source

Effects of the equilibrium model on impurity transport in tokamaks [PDF]

, 2013
Gyrokinetic simulations of ion temperature gradient mode and trapped electron mode driven impurity transport in a realistic tokamak geometry are presented and compared with results using simplified geometries.
Anderson, Johan, Fazendeiro, Luis, Nordman, Hans, Skyman, Andreas, Strand, Pär, Tegnered, Daniel   +5 more
core   +2 more sources

Physics‐controlled thickness of shear zones caused by viscous heating: Implications for crustal shear localization [PDF]

Geophysical Research Letters, 2014
AbstractWe evaluate the parameters that control the thickness of ductile shear zones that are generated by viscous heating. We employ two‐dimensional thermomechanical numerical models to simulate shear zone development under compression. Results show that the shear zone thickness is essentially independent on the numerical resolution and the initial ...
T. Duretz, S. M. Schmalholz, Y. Y. Podladchikov, D. A. Yuen   +3 more
openaire   +1 more source

Fabrication‐Directed Entanglement for Designing Chiral and Anisotropic Metamaterial Foams

Advanced Engineering Materials, EarlyView.
This work introduces fabrication‐directed entanglement (FDE), combining viscous thread printing and topology optimization to program entangled foams with spatially patterned stiffness. By tuning coil density, FDE enables anisotropy, programmable Poisson's ratio, and chirality in foams.
Daniel Revier, Brett Emery, Jacob Miske, Jeffrey Lipton   +3 more
wiley   +1 more source

Localized magnetorotational instability and its role in the accretion disc dynamo

, 2008
(Abriged) The magnetorotational instability (MRI) is believed to be an efficient way to transport angular momentum in accretion discs. It has also been suggested as a way to amplify magnetic fields in discs, the instability acting as a nonlinear dynamo ...
Balbus, Balbus, Brandenburg, Fromang, Fromang, Geoffroy Lesur, Goldreich, Gordon I. Ogilvie, Hawley, Hawley, Lesur, Lesur, Moffatt, Rincon, Stone, Velikhov   +15 more
core   +1 more source