Results 181 to 190 of about 4,579 (296)

Magnetothermal‐Triggered Response and Self‐Healing of Recyclable and Reprocessable Nanocomposites for Actuation Systems

open access: yesAdvanced Functional Materials, Volume 36, Issue 45, 5 June 2026.
Developing recyclable materials for magnetic robotics that combine rapid response and self‐healing properties is challenging. Hence, this study focuses on the integration of magnetothermal nanoparticles into a dynamic sorbitol‐based vitrimer, a recyclable composite capable of remote actuation and self‐healing by magnetic heating.
Maria Weißpflog   +3 more
wiley   +1 more source

Numerical analysis of MHD Jeffrey hybrid nanofluid flow over a solar curved sheet using ANN model. [PDF]

open access: yesDiscov Nano
Reddisekhar Reddy SR   +5 more
europepmc   +1 more source

Large‐Area 2D Metasurface‐Based Triboelectric E‐Skin Arrays: Contact & Proximity Tactile Mapping with Broadband Acoustic Readouts

open access: yesAdvanced Materials, Volume 38, Issue 36, 26 June 2026.
Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief   +12 more
wiley   +1 more source

Spheres, tears, and spears: Regulating the perimeter and circularity of millimeter‐sized alginate hydrogel beads

open access: yesAIChE Journal, Volume 72, Issue 6, June 2026.
Abstract Generating hydrogel beads pertains to many engineering applications. We examined two alginate‐based fluids at three concentrations of alginate, cAG. We used the “Map of Misery” to determine which material property (viscosity, elasticity, and inertia) drives droplet formation. Next, we measured the perimeter and circularity of hydrogel beads as
Conor G. Harris   +5 more
wiley   +1 more source

Bridge principle for constant and positive Gauss curvature surfaces

open access: yes, 1999
International audienceWe apply Schauder fixed point theorem and gluing method to construct positive constant Gauss curvature K surfaces. Let S_1 and S_2, two stable K surfaces and a path \gamma connecting the two surfaces, we can find a new K surface ...
Hauswirth, Laurent
core  

Nitrogen Reduction by Nanostructure‐Supported Ruthenium Catalysts

open access: yesChemCatChem, Volume 18, Issue 12, 26 June 2026.
Zero‐valent ruthenium catalysts supported on multi‐walled carbon nanotubes (Ru0@CNTs) and on graphitic carbon nitride (Ru0@g‐C3N4) allow photocatalytic and electrochemical reduction of molecular nitrogen, characterized experimentally and with DFT calculations.
Rami Doukeh   +10 more
wiley   +1 more source

Non‐negative Gaussian estimation of variance components in random effects models

open access: yesCanadian Journal of Statistics, Volume 54, Issue 2, June 2026.
Abstract When used to estimate variance components (VCs), confidence intervals (CIs) can be truncated at zero, have a point estimate not in the quoted CI, be empty with positive probability, or be all‐inclusive. This is because they have conflicting dual roles, since they are considered to cover the parameter with a specified probability while also ...
André Plante, Michael Plante
wiley   +1 more source

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