Results 151 to 160 of about 326,768 (380)

Thermodynamic Stability and Site‐Specific Distribution of Graphitic and Pyridinic Nitrogen in Graphene Moiré on Ru(0001)

open access: yesAdvanced Materials Interfaces, EarlyView.
Nitrogen doping on Ru(0001) is investigated using ion implantation and annealing, tuning the distribution of graphitic (GN) and pyridinic (PN) nitrogen sites. STM, XPS, and DFT identified the structure and site distribution, and a thermodynamic phase diagram showed that GN is most stable at the Atop region, while PN preferred boundaries between FCC and
Buddhika S. A. Gedara   +8 more
wiley   +1 more source

Emergent Ferromagnetism at LaFeO3/SrTiO3 Interface Arising from a Strain‐Induced Spin‐State Transition

open access: yesAdvanced Materials Interfaces, EarlyView.
Strain at the LaFeO3/SrTiO3 interface induces spin‐state disproportionation, creating a checkerboard pattern of low‐ and high‐spin Fe3+ ions. This unusual configuration leads to interfacial ferromagnetism in an otherwise antiferromagnetic insulator. Using electron microscopy, spectroscopy, and density functional theory, this work reveals a new route to
Menglin Zhu   +9 more
wiley   +1 more source

ANALYTICAL MODEL FOR BUCKLING LENGTH COEFFICIENT DETERMINATION IN STEEL TRUSSES: A LATERAL TORSIONAL BUCKLING APPROACH

open access: yesInternational Journal for Computational Civil and Structural Engineering
This paper presents a contribution to the study of the stability of steel trusses. The paper proposes an analytical model for the determination of the buckling length coefficient of the truss N by the lateral torsional buckling approach.
Dalila Boukhalfa   +3 more
doaj   +1 more source

Soft ULC Microgels at the Interface Interact and Flow as Hertzian‐Like Colloids

open access: yesAdvanced Materials Interfaces, EarlyView.
Monolayers of soft ULC microgels, studied combining interfacial rheology, AFM and computer simulations, exhibit isoelastic points. At these points, the measured stiffness of the monolayer remains constant despite large differences in particle concentration.
José Ruiz‐Franco   +5 more
wiley   +1 more source

Soft Electromagnetic Actuator and Oscillator

open access: yesAdvanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
This work presents a groundbreaking soft electromagnetic system capable of bistable actuation and self‐regulated oscillation. Using liquid metal and silicone as a compliant conductor, the actuator enables force generation, sensing, and feedback with minimal power.
Noah D. Kohls, Yi Chen Mazumdar
wiley   +1 more source

Dynamic buckling of laminated composite stringer stiffened CFRP panels under axial compression

open access: yesMATEC Web of Conferences, 2018
In this work, the dynamic buckling of stiffened panels is evolved numerically through a nonlinear incremental expression through making use of a specific time integration procedure via the finite element software program.
Ouadia Mouhat   +6 more
doaj   +1 more source

Microfluidic Production of Ultrathin, Handleable Collagen Sheets Exhibiting Toe‐heel Tensile Behavior

open access: yesAdvanced Materials Technologies, EarlyView.
This study presents a microfluidic wet spinning technique for producing ultrathin, templated collagen sheets with hierarchical organization at the microscale. The aligned collagen sheets replicate strain‐stiffening behavior associated with native cardiovascular tissues, sup cell attachment and contraction, and enable biofabrication of load‐bearing ...
Yuming Zhang   +6 more
wiley   +1 more source

High Aspect Ratio, Superconducting Vacuum Gap Capacitor NEMS with Plate Distances Down to 32 nm

open access: yesAdvanced Materials Technologies, EarlyView.
Fabrication of aluminium vacuum gap capacitor based NEMS is investigated with a free to move top electrode. To avoid collapse of the top electrode vertical stress gradient is controlled through sputter parameters. The result is wafer‐level high‐yield fabrication of vacuum gap capacitors with radii between 7 µm and 30 µm and integrated piezoactuators. A
Ioan Ignat, Daniel Platz, Ulrich Schmid
wiley   +1 more source

Pick‐and‐Place Grippers with Tunable Adhesion from Capped Soft Hollow Pillar Structure

open access: yesAdvanced Materials Technologies, EarlyView.
Mushroom‐shaped soft hollow pillars (SHPs) with a mushroom cap, or capped SHPs (C‐SHPs) are introduced for improved tunable adhesion under pneumatic actuation. The mushroom cap optimizes stress distribution and alters crack initiation on the contact interface, leading to significantly improved adhesion strength and tunability.
Yanbing Tang   +3 more
wiley   +1 more source

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