Results 41 to 50 of about 157,871 (287)

Behavior of diatomaceous soil in lacustrine deposits of Bogotá, Colombia

Journal of Rock Mechanics and Geotechnical Engineering, 2018
This work presents a study on the behaviors of diatomaceous soils. Although studies are rarely reported on these soils, they have been identified in Mexico City, the Sea of Japan, the northeast coast of Australia, the equatorial Pacific, and the ...
Bernardo Caicedo, Cristhian Mendoza, Fernando López, Arcesio Lizcano   +3 more
doaj   +1 more source

Observation of a Dislocation Related Interfacial Friction Mechanism in Mobile Solid $^4$He

, 2012
We report a study of the temperature and stress dependence of the friction associated with a relative motion of two masses of solid $^4$He in contact. The situation where "two masses" coupled only by friction exists emerges spontaneously during a disordering of a single crystal contained inside a annular sample space of torsional oscillator (TO). Under
Eyal, Anna, Livne, Ethan, Polturak, Emil
openaire   +2 more sources

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

Multiphysics models for friction stir welding simulation [PDF]

, 2013
Purpose: The Friction Stir Welding (FSW) process comprises of several highly coupled (and non-linear) physical phenomena: large plastic deformation, material flow transportation, mechanical stirring of the tool, tool-workpiece surface interaction ...
Hamilton, Robert, Li, Hongjun, Mackenzie, Donald   +2 more
core  

General contact mechanics theory for randomly rough surfaces with application to rubber friction

, 2015
We generalize the Persson contact mechanics and rubber friction theory to the case where both surfaces have surface roughness. The solids can be rigid, elastic or viscoelastic, and can be homogeneous or layered.
Persson, Bo N. J., Scaraggi, Michele
core   +1 more source

Rheophysics of dense granular materials : Discrete simulation of plane shear flows [PDF]

, 2005
We study the steady plane shear flow of a dense assembly of frictional, inelastic disks using discrete simulation and prescribing the pressure and the shear rate.
B. Cambou, C. Josserand, C. S. Campbell, D. M. Hanes, D. M. Wood, F. da Cruz, F. da Cruz, F. Radjai, F. Radjai, François Chevoir, Frédéric da Cruz, G. D. R. Midi, J. Christoffersen, J. D. Dent, J. P. Hansen, J. Rajchenbach, J.-J. Moreau, J.-N. Roux, Jean-Noël Roux, K. Craig, K. L. Johnson, L. Bocquet, M. P. Allen, Michaël Prochnow, N. Kruyt, O. Pouliquen, P. A. Cundall, P. A. Vermeer, P. G. Rognon, P. Mills, R. Jackson, R. Nedderman, Sacha Emam   +32 more
core   +2 more sources

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

The physics of earthquakes [PDF]

, 2004
Earthquakes occur as a result of global plate motion. However, this simple picture is far from complete. Some plate boundaries glide past each other smoothly, while others are punctuated by catastrophic failures.
Brodsky, Emily E., Kanamori, Hiroo
core   +1 more source

A Granular Thermodynamic Model to Describe the Temperature/Mechanical Characteristics of Sandy Soil

Frontiers in Earth Science, 2021
Based on the granular-solid-hydrodynamic theory, the constitutive model considering the thermo-hydro-mechanical (THM) coupled action is established, and the dilatancy property of sandy soil under coupled high mechanical pressure and temperature is ...
Rui Zhou, Siyuan Gao, Wei Wang
doaj   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source