Results 51 to 60 of about 423,030 (300)

Spatial and Volumetric Characteristics of Glioblastoma: Associations With Clinical Presentation and Survival

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective We aim to comprehensively analyze how regional tumor and edema characteristics are associated with clinical presentations and survival outcomes in a large cohort of glioblastoma patients. Methods Patients with IDH‐wildtype glioblastoma who received brain MRI from 2010 to 2023 were included.
Daniel J. Zhou   +15 more
wiley   +1 more source

Grain Boundaries in Graphene on SiC(000$\bar{1}$) Substrate

open access: yes, 2014
Grain boundaries in epitaxial graphene on the SiC(000$\bar{1}$) substrate are studied using scanning tunneling microscopy and spectroscopy. All investigated small-angle grain boundaries show pronounced out-of-plane buckling induced by the strain fields ...
Albrecht T. R.   +46 more
core   +5 more sources

Injection of vacancies at metal grain boundaries during the oxidation of nickel [PDF]

open access: yes, 2004
Nickel foils have been oxidised at 1000 °C on one side only in laboratory air, the other side being protected from oxidation by a reducing atmosphere.
Andrieu, Eric   +4 more
core   +2 more sources

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Removing grain boundaries from three-dimensional colloidal crystals using active dopants

open access: yes, 2016
Using computer simulations we explore how grain boundaries can be removed from three-dimensional colloidal crystals by doping with a small fraction of active colloids. We show that for sufficient self-propulsion, the system is driven into a crystal-fluid
Dijkstra, Marjolein   +2 more
core   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai   +2 more
wiley   +1 more source

Nanotwinning: Generation, properties, and application

open access: yesMaterials & Design, 2020
In recent years, nanotwinned (NT) materials have attracted great attention in several research areas because of many advantageous properties (e.g., high conductivity, excellent mechanical stability, and distinctive structure).
Prateek Uttam   +3 more
doaj   +1 more source

Analysis of microstructural evolution and mechanical properties in the simulated heat-affected zone of Fe-23Mn-0.45C-1.5Al high-Mn austenitic steel

open access: yesJournal of Materials Research and Technology, 2022
Welding thermal simulation technology was used to process Fe-23Mn-0.45C-1.5Al high-Mn austenitic steel to reproduce the heat-affected zone (HAZ) and investigate the effect of peak temperature on microstructural evolution and cryogenic toughness ...
Jiang Yang   +5 more
doaj   +1 more source

Enhancement of magnetic ordering by the stress fields of grain boundaries in ferromagnets

open access: yes, 2001
In the paper we predict a distinctive change of magnetic properties and considerable increase of the Curie temperature caused by the strain fields of grain boundaries in ferromagnetic films. It is shown that a sheet of spontaneous magnetization may arise
A. Kadigrobov   +4 more
core   +1 more source

Space–charge theory applied to the grain boundary impedance of proton conducting BaZr0.9Y0.1O3−δ. [PDF]

open access: yes, 2010
The specific grain interior and grain boundary conductivities, obtained from impedance spectroscopy and the brick layer model, are reported for BaZr0.9Y0.1O3−δ as a function of pO2 and temperature. pO2-dependencies were indicative of dominating ionic and
Estournès, Claude   +6 more
core   +1 more source

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