Results 131 to 140 of about 370,108 (311)

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Comparisons of various configurations of the edge delamination test for interlaminar fracture toughness [PDF]

open access: yes
Various configurations of Edge Delamination Tension (EDT) test specimens, of both brittle (T300/5208) and toughened-matrix (T300/BP907) graphite reinforced composite laminates, were manufactured and tested. The mixed-mode interlaminar fracture toughness,
Johnston, N. J.   +4 more
core   +1 more source

Multi-professional rehabilitation model among Older Persons after Hip Fracture Surgery: Review

open access: yesMedia Keperawatan Indonesia
Hip fracture in the elderly is a major health problem. Multi-professional rehabilitation approaches were recommended; however, there were various multi-professional rehabilitation models; therefore, identifying the multi-professional rehabilitation model,
Wantonoro Wantonoro   +2 more
doaj   +1 more source

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

open access: yesAdvanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel   +7 more
wiley   +1 more source

Comparison of fatigue fracture criteria for uniaxial tension [PDF]

open access: yes, 2015
Bakalářská práce „Porovnání kritérií únavového porušení při pulzujícím namáhání v jednoosém tahu“ se zabývá únavou materiálu a možnostmi odhadu životnosti materiálu pro pulzující zatěžovací cyklus.
Stolář, Jakub
core  

Fracture Prediction in Weldox 700E Steel Subjected to High Velocity Impact Using LS-DYNA

open access: yesApplied Sciences
Analyzing fracture behaviour during high-velocity impacts is critical for designing and developing structures in various scientific and technological fields.
Nikesh Kumar Ojha   +3 more
doaj   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

open access: yesAdvanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine   +5 more
wiley   +1 more source

Triply‐Twinned Metamaterials: Unraveling the Mechanics and Failure Pathways Through High‐Resolution XCT

open access: yesAdvanced Materials, EarlyView.
Triply‐twinned architected lattices transform deformation from bending to stretching of struts, delivering up to threefold increases in stiffness and strength across polymeric and metallic systems. High‐resolution synchrotron XCT and image‐based simulations reveal how meta‐grain architecture, defects, and AM build orientation govern failure pathways ...
David McArthur   +7 more
wiley   +1 more source

Calculation of sub-surface-initiated fatigue fractures in gears [PDF]

open access: yes, 2019
Power-transmitting gears are typically heat-treated, most often case-hardened, to improve the fatigue strength and therefore to ensure higher fatigue life.
Müller, Daniel   +2 more
core  

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