Results 51 to 60 of about 36,385 (261)

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

Robust Preview Control and Autoregressive Prediction for Aircraft Automatic Carrier Landing

IEEE Access, 2019
This paper studies an automatic carrier landing control problem of fixed-wing aircraft with system uncertainties under the airwake and deck motion disturbances.
Ziyang Zhen, Miao Peng, Yixuan Xue, Shuoying Jiang   +3 more
doaj   +1 more source

Four‐channel self‐compensating single‐slope ADC for space environments [PDF]

Electronics Letters, 2014
A multichannel high‐resolution single‐slope analogue‐to‐digital converter (SS ADC) is presented that automatically compensates for process, voltage and temperature variations, as well as for radiation effects, in order to be used in extreme environmental conditions.
Sordo Ibáñez, Samuel, Espejo Meana, Servando Carlos, Piñero García, Blanca, Ragel Morales, Antonio, Ceballos Cáceres, Joaquín Francisco, Muñoz Díaz, Manuel, Carranza González, Luis, Arias Drake, Alberto, Mora Gutiérrez, José Miguel, Lagos Florido, Miguel Ángel, Ramos Martos, J.   +10 more
openaire   +4 more sources

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Does stopping at C2 matter? A comparative analysis of alignment and craniocervical compensation in C2–T1 versus C3–T1 posterior cervical fusion

Journal of Craniovertebral Junction and Spine
Objective: Selection of the proximal upper instrumented vertebra (UIV) in multilevel posterior cervical fusion (PCF) remains controversial. This study compared sagittal alignment, craniocervical compensatory behavior, and perioperative outcomes between ...
Dana Saleh, Ahmad Zayd Alkadri, John S. Lingam, Daven Mejica, Diego Soto Rubio, Joshua Vignolles-Jeong, Sawyer Bauer, Katherine Baker, Mohsen Rostami, Patrick Kim, Puya Alikhani   +10 more
doaj   +1 more source

Compensation Characteristics of Spinal Sagittal Malalignment According to Pelvic Incidence in Elderly Patients with Degenerative Lumbar Spinal Stenosis

Orthopaedic Surgery, 2023
Objective Compensation characteristics of spinal sagittal malalignment according to pelvic incidence (PI) have yet to be elucidated. This study aimed to investigate the difference in compensatory segments according to PI in elderly patients with ...
Dong‐Fan Wang, Xiang‐Yu Li, Wei Wang, Yong‐Jin Li, Chao Kong, Shi‐Bao Lu   +5 more
doaj   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source