Results 51 to 60 of about 33,857 (279)

Hardness evolution of AZ80 magnesium alloy processed by HPT at different temperatures

Journal of Materials Research and Technology, 2017
Discs of an extruded AZ80 magnesium alloy were processed by high-pressure torsion (HPT) using 6.0 GPa up to 10 turns at different temperatures (296 K and 473 K). The disc surfaces and cross-sectional planes were examined before and after processing using
Saad A. Alsubaie, Yi Huang, Terence G. Langdon   +2 more
doaj   +1 more source

Effects of nanostructural hierarchy on the hardness and thermal stability of an austenitic stainless steel

Journal of Materials Research and Technology, 2021
An austenitic stainless steel was processed by high-pressure torsion, and formed a hierarchical nanostructure with ultrafine grains, ultrafine-precipitates, nano-twins and high densities of dislocations.
Wei Jiang, Yang Cao, Yingda Jiang, Yanfang Liu, Qingzhong Mao, Hao Zhou, Xiaozhou Liao, Yonghao Zhao   +7 more
doaj   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

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

Microstructure and microhardness of cryomilled bulk nanocrystalline Al-7.5%Mg alloy consolidated by high pressure torsion [PDF]

, 2014
Cryomilled nanocrystalline Al-7.5Mg (in wt.%) powders were consolidated by high pressure torsion (HPT). Consolidation resulted in elongated nanocrystalline grains of similar to30 nm width along the torsion direction and high microhardness values over 3.5
Valiev, RZ, Zhou, F, Nutt, SR, Lee, Zonghoon, Lavernia, EJ   +4 more
core   +1 more source

Deep Learning Pose Estimation for Phenotyping of Co‐Occurring Hyperkinetic Movement Disorders

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore whether routine outpatient video combined with deep learning‐based pose estimation and clinically interpretable kinematic features can support multi‐label phenotyping of co‐occurring hyperkinetic movement disorders (HMDs).
Laura Cif, Diane Demailly, Gabriella A. Horvàth, Juan Dario Ortigoza Escobar, Nathalie Dorison, Mayté Castro Jiménez, Cécile A. Hubsch, Thomas Wirth, Gun‐Marie Hariz, Sophie Huby, Morgan Dornadic, Zohra Souei, Muhammad Mushhood Ur Rehman, Simone Hemm, Mehdi Boulaymen, Eduardo M. Moraud, Jocelyne Bloch, Xavier Vasques   +17 more
wiley   +1 more source

Indentation and scratch testing of DLC-Zr coatings on ultrafine-grained titanium processed by high-pressure torsion [PDF]

, 2013
High-pressure torsion was employed to refine the microstructure of grade 2 Ti under an imposed pressure of 3.0 GPa at room temperature. The microhardness of grade 2 Ti increased from 1.82 GPa for the coarse grain state to 3.05 GPa after high-pressure ...
Cavaleiro, Albano, Escudeiro, Ana, Polcar, Tomas, Wood, Robert J. K., Langdon, Terence G., Wang, Chuan Ting, Gao, Nong   +6 more
core   +1 more source

Effective Temperature of High Pressure Torsion in Zr-Nb Alloys

High Temperature Materials and Processes, 2012
Severe plastic deformation by the high pressure torsion (HPT) leads to the phase transitions and strong grain refinement. The starting α Zr-phase in Zr alloyed by 2.5 and 8 mass% Nb transforms into β + ω mixture.
Straumal Boris B., Gornakova Alena S., Fabrichnaya Olga B., Kriegel Mario J., Mazilkin Andrey A., Baretzky B., Gusak A. M., Dobatkin S. V.   +7 more
doaj   +1 more source

From unlikely pairings to functional nanocomposites: FeTi–Cu as a model system

Materials Today Advances, 2023
In order to develop materials for energy storage, a bulk nanocomposite with a composition of FeTi-25 vol% Cu was prepared by high-pressure torsion, with FeTi as functional phase for hydrogen storage and Cu as ductile phase to improve the processability ...
Lukas Schweiger, Daniel Kiener, Michael Burtscher, Erhard Schafler, Gregor Mori, Florian Spieckermann, Jürgen Eckert   +6 more
doaj   +1 more source

Does Long‐Term Lower Extremity Strength Training in Adults With Knee Osteoarthritis and Varus Alignment Reduce Knee Joint Loading During Gait?

Arthritis Care &Research, EarlyView.
Objective We examined whether 18 months of strength training in individuals with knee varus alignment and medial tibiofemoral osteoarthritis (OA) reduced knee joint loads during walking compared to an attention control group. Methods This study was a secondary analysis of a randomized clinical trial that compared the effects of strength training to a ...
Stephen P. Messier, Matthew N. Vigliotti, Paige E. Rice, Brian Pietrosimone, Shannon L. Mihalko, Edward H. Ip, Richard F. Loeser, David J. Hunter, Ali Guermazi, Ryan Hill, Santiago Saldana, Kim L. Bennell, Paul DeVita   +12 more
wiley   +1 more source