Results 31 to 40 of about 27,396 (267)

Complex strain paths in polycrystalline copper: microstructural aspects

Materials Research, 1999
Microstructural aspects of polycrystalline copper sheets subjected to complex strain paths were analysed in this work. Dislocation structures developed during the strain paths (rolling and tension) and the evolution of this microstructure during ...
M.F. Vieira, J.V. Fernandes
doaj   +1 more source

Hot deformation behaviors and microstructure evolution of Mg–Si–Sr alloy

Materials Research Express, 2020
The hot deformation behavior and microstructural evolution of as-extruded Mg-0.55 wt.%Si-0.75 wt.%Sr alloys at 250 °C with the compressive strain rate of 1 s ^−1 , 0.1 s ^−1 , 0.01 s ^−1 and 0.001 s ^−1 were investigated via electron backscatter ...
Lei Zhang, Jinhui Wang, Yunpeng Zhu, Bo Shi, Peipeng Jin   +4 more
doaj   +1 more source

Microstructural evolution of pre-twinned Mg alloy with annealing temperature and underlying boundary migration mechanism

Journal of Magnesium and Alloys, 2023
This study investigates the variations in the microstructural characteristics of a pre-twinned Mg alloy with the temperature of the subsequent annealing treatment.
Ye Jin Kim, Jong Un Lee, Gyo Myeong Lee, Sung Hyuk Park   +3 more
doaj   +1 more source

Association Between Motor Pathway Damage and Motor Deficit in Upper and Lower Limb in People With MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Corticospinal tract damage is common in people with MS, but the degree of clinical symptoms varies. We hypothesize that corticospinal tract lesions are more extensive and severe in people with MS with motor impairments in both upper and lower limbs.
Mathilde Liffran, Malo Gaubert, Alice Dufey, Elise Bannier, Audrey Rico, Jean‐Christophe Ferré, Raphaël Chouteau, Laure Michel, Emmanuelle Le Page, Virginie Callot, Bertrand Audoin, Sarah Demortière, Benoît Combès, Anne Kerbrat   +13 more
wiley   +1 more source

Correlation between Microstructural Evolution and Mechanical Properties of 2000 MPa Cold-Drawn Pearlitic Steel Wires during Galvanizing Simulated Annealing

Metals, 2019
In the present experiment, hot-dip galvanizing simulated annealing of 2000 MPa cold-drawn pearlitic steel wires was carried out at 450 °C. The effects of microstructural evolution on the mechanical properties of the as-prepared wires were analyzed ...
Xiuyu Lu, Jing Liu, Guifeng Zhou, Lulu Feng, Zhen Wang   +4 more
doaj   +1 more source

Microstructure Evolution of Tin–Lead Solder [PDF]

IEEE Transactions on Components and Packaging Technologies, 2004
Microstructural length scales are relatively large in typical soldered connections. The microstructure which is continuously evolving is known to have a strong influence on damage initiation and propagation. In order to make accurate lifetime predictions by numerical simulations, it is therefore necessary to take the microstructural evolution into ...
Ubachs, R.L.J.M., Schreurs, P.J.G., Geers, M.G.D.   +2 more
openaire   +2 more sources

White Matter Microstructural Abnormalities in Neonatal Onset Genetic Epilepsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Recent evidence indicates that epilepsy is associated with abnormal white matter. If seizures alter white matter, then the impact upon network function, epileptogenesis, and cognition could be pronounced in neonates undergoing rapid developmental myelination. Neonates with epilepsy due to nonstructural genetic causes provide a unique
Amanda G. Sandoval Karamian, Tianjia Zhu, Hao Huang, Shavonne L. Massey, Mark P. Fitzgerald, Darshana Parikh, Arastoo Vossough, Ingo Helbig, Nicholas S. Abend   +8 more
wiley   +1 more source

Microstructure evolution of Solid Oxide Fuel Cell anodes characterized by persistent homology

Energy and AI, 2023
Uncovering microstructure evolution mechanisms that accompany the long-term operation of solid oxide fuel cells is a fundamental challenge in designing a more durable energy system for the future.
Piotr Pawłowski, Szymon Buchaniec, Tomasz Prokop, Hiroshi Iwai, Grzegorz Brus   +4 more
doaj   +1 more source

Neurochemical Endpoints to Inform Early‐Stage Trials of Spinocerebellar Ataxia 2 and 3 in a Multisite Setting

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neurochemical levels measured by brain MR spectroscopy (MRS) have been proposed as endpoints for clinical trials in early‐stage spinocerebellar ataxia (SCA) trials. We tested their trial‐readiness by quantifying neurochemicals in three affected brain regions in early‐stage cohorts of SCA2 and SCA3, examining their reproducibility in ...
James M. Joers, Yaqiao Wei, Dinesh K. Deelchand, Adam Berrington, Young Woo Park, Guita Banan, Michal Povazan, Jens T. Rosenberg, André J. W. van der Kouwe, Tetsuo Ashizawa, Khalaf O. Bushara, Chiadi U. Onyike, Sub H. Subramony, Jeremy D. Schmahmann, Brian J. Soher, Peter B. Barker, Thomas H. Mareci, Eva‐Maria Ratai, Lynn E. Eberly, Gülin Öz   +19 more
wiley   +1 more source

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright, Scotty G. McKay, Jean Ramos Bou, Fen Bao, Vivian B. Truong, Chenyang Li, Li Jiang, Anza B. Memon, E. Mark Haacke, Yulin Ge, Yongsheng Chen   +10 more
wiley   +1 more source