Results 41 to 50 of about 427,457 (296)

Frictionless bead packs have macroscopic friction, but no dilatancy [PDF]

, 2008
The statement of the title is shown by numerical simulation of homogeneously sheared packings of frictionless, nearly rigid beads in the quasistatic limit. Results coincide for steady flows at constant shear rate γ in the limit of small γ
A. S. J. Suiker, A. Sierou, C. Thornton, D. Cumberland, D. M. Wood, F. Radjaï, G.D.R. MiDi, J. Christoffersen, J.-N. Roux, Jean-Noël Roux, K. L. Johnson, M. Allen, N. P. Kruyt, O. Reynolds, P. A. Cundall, Pierre-Emmanuel Peyneau, V. Luchnikov, W. H. Press   +17 more
core   +7 more sources

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

On the Normal Force and Static Friction Acting on a Rolling Ball Actuated by Internal Point Masses

, 2019
The goal of this paper is to investigate the normal and tangential forces acting at the point of contact between a horizontal surface and a rolling ball actuated by internal point masses moving in the ball's frame of reference.
Putkaradze, Vakhtang, Rogers, Stuart
core   +1 more source

IV Thrombolysis Facilitates Interventional Reperfusion in Non‐Cardioembolic but Not Cardioembolic Stroke

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Intravenous thrombolysis (IVT) before thrombectomy for ischemic stroke may alter clot structure and procedural performance. We investigated how IVT relates to thrombectomy metrics across stroke etiologies. Methods We performed a time‐to‐event analysis of consecutive patients with anterior circulation large vessel occlusion (acLVO ...
Annahita Sedghi, Daniel P. O. Kaiser, Martin Arndt, Norma J. Diel, Erik Simon, Witold H. Polanski, Volker Puetz, Hagen B. Huttner, Timo Siepmann   +8 more
wiley   +1 more source

THE CHOICE OF RELAXATION IN DESCRIBING MECHANICAL CHARACTERISTICS OF HIGH TEMPERATURE AREA OF DISSIPATIVE LOSS IN THE SPECTRUM OF INTERNAL FRICTION

Тонкие химические технологии, 2017
The analysis of experimental internal friction spectrum tgδ - f(T) shows that monocrystalline metallic materials possess the simplest spectrum. For those materials, dissipation of a part of the energy of external power impact exists in a form of internal
A. A. Valishin, E. M. Kartashov, A. A. Kukhtenkova, V. A. Lomovskoy   +3 more
doaj   +1 more source

Low temperature acoustic properties of amorphous silica and the Tunneling Model

, 1999
Internal friction and speed of sound of a-SiO(2) was measured above 6 mK using a torsional oscillator at 90 kHz, controlling for thermal decoupling, non-linear effects, and clamping losses. Strain amplitudes e(A) = 10^{-8} mark the transition between the
A. Burin, C. Enss, D. G. Cahill, E. T. Swartz, EunJoo Thompson, G. Lawes, H. Nishiyama, J. C. Lasjaunias, J. Classen, J. Classen, J. Classen, J. Classen, J. D. N. Cheeke, J. M. Parpia, J. Parpia, J. Parpia, K. Topp, P. Esquinazi, P. Strehlow, P. Strehlow, Q. Li, R. O. Pohl, S. Rogge, W. A. Phillips, X. Liu   +24 more
core   +1 more source

Magnetic transition in Ni-Pt alloy Systems : Experiment and Theory [PDF]

, 2004
We report here the preparation and measurements on the susceptibility, sound velocity and internal friction for Ni-Pt systems. We then compare these experimental results with the first principle theoretical predictions and show that there is reasonable ...
Abhijit Mookerjee, Andersen, Burke, Dahmani, Durga Paudyal, Gersdorf, Gunnarsson, K.G. Padmalekha, Mohn, Mukhopadhyay, Mukhopadhyay, Mukhopadhyay, P.K. Mukhopadhyay, Parra, Paudyal, Paudyal, Saha, Staunton, Uday Kumar   +18 more
core   +2 more sources

Differential Item Functioning on the Patient Health Questionnaire 8 by Disease Subtype, Language, Sex, and Age Among People With Systemic Sclerosis: A Scleroderma Patient‐Centered Intervention Network Cohort Study

Arthritis Care &Research, EarlyView.
Objective Somatic items used in depression assessments can potentially overlap with symptoms related to physical illness, including systemic sclerosis (SSc). No studies have looked at whether somatic depression items may be influenced by diffuse versus limited SSc disease subtypes, which are associated with varying degrees of symptom presentation.
Sophie Hu, Marie‐Eve Carrier, Marie‐Claude Geoffroy, Meira Golberg, Linda Kwakkenbos, Susan J. Bartlett, Catherine Fortuné, Amy Gietzen, Karen Gottesman, Geneviève Guillot, Laura K. Hummers, Amanda Lawrie‐Jones, Vanessa L. Malcarne, Michelle Richard, Maureen Sauvé, Luc Mouthon, Andrea Benedetti, Brett D. Thombs, on behalf of the SPIN Investigators, Claire E. Adams, Marie Hudson, Maureen D. Mayes, James Stempel, Robyn K. Wojeck, Christian Agard, Laurent Alric, Marc André, Floryan Beaslay, Elana J. Bernstein, Sabine Berthier, Lyne Bissonnette, Sophie Blaise, Eva Bories, Alessandra Bruns, Carlotta Cacciatore, Patricia Carreira, Marion Casadevall, Benjamin Chaigne, Lorinda Chung, Benjamin Crichi, Thylbert Deltombe, Christopher P. Denton, Tannvir Desroche, Robyn Domsic, James V. Dunne, Bertrand Dunogue, Regina Fare, Dominique Farge‐Bancel, Paul R. Fortin, Tracy Frech, Loraine Gauzère, Anne Gerber, Jessica K. Gordon, Brigitte Granel‐Rey, Aurélien Guffroy, Geneviève Gyger, Eric Hachulla, Daphna Harel, Monique Hinchcliff, Sabrina Hoa, Michael Hugues, Alena Ikic, Sindhu R. Johnson, Nader Khalidi, Kimberly S. Lakin, Marc Lambert, Maggie Larche, David Launay, Yvonne C. Lee, Paul Legendre, Catarina Leite, Hélène Maillard, Nancy Maltez, Joanne Manning, Isabelle Marie, Maria Martin Lopez, Thierry Martin, Ariel Masetto, Arsène Mekinian, Sheila Melchor Díaz, Morgane Mourguet, Christelle Nguyen, Karen Nielsen, Mandana Nikpour, Louis Olagne, Vincent Poindron, Janet Pope, Susanna Proudman, Grégory Pugnet, Loïc Raffray, François Rannou, Alexis Régent, Frederic Renou, Sébastien Rivière, David Robinson, Esther Rodríguez Almazar, Tatiana Sofia Rodríguez‐Reyna, Sophie Roux, Perrine Smets, Vincent Sobanski, Robert F. Spiera, Virginia Steen, Evelyn Sutton, Carter Thorne, Damien Vagner, John Varga, Pearce Wilcox, Vanessa Cook, Cassidy Dal Santo, Monica D'Onofrio, Elsa‐Lynn Nassar   +110 more
wiley   +1 more source

Relaxation and physicomechanical characteristics of polyethylenes with different molecular weights

Тонкие химические технологии, 2019
Objectives. Determination of the influence of molecular weight on the modulus of elasticity, yield, strength, and retardation processes in polyethylene.Methods.
R. A. Alekhina, V. A. Lomovskoy, I. D. Simonov-Emel’yanov, S. A. Shatokhina   +3 more
doaj   +1 more source

Transitory Ultrasonic Absorption in “Domain Engineered” Structures of 10 M Ni-Mn-Ga Martensite

Metals, 2021
In this work we create in 10 M Ni-Mn-Ga martensitic samples special martensitic variant structures consisting of only three twins separated by two a/c twin boundaries: Type I and Type II, with relatively low and very high mobility, respectively.
Sergey Kustov, Andrey Saren, Bruno D’Agosto, Konstantin Sapozhnikov, Vladimir Nikolaev, Kari Ullakko   +5 more
doaj   +1 more source