Results 141 to 150 of about 2,223,831 (310)

Aqueously Upcycled Lignin with Emergent Tribonegativity for Skin‐Integrated Triboelectronics

open access: yesAdvanced Materials, EarlyView.
Aqueously upcycled lignin is transformed into a printable ink that self‐assembles into a nanotextured surface during printing with the highest reported biopolymer‐based tribonegativity. The resulting skin‐integrated triboelectric sensor enables high‐fidelity cardiovascular monitoring and objective mental workload classification, demonstrating a ...
Robert Ccorahua‐Santo   +3 more
wiley   +1 more source

Centrifugation Theory Revisited: Understanding and Modeling the Centrifugation of 2D Nanosheets

open access: yesAdvanced Materials Interfaces, EarlyView.
Colloidal dispersions of nanomaterials are often size‐selected by centrifugation, for anisotropic particle shapes in trial and error. This paper describes the derivation of an equation of motion for 2D objects. The model is validated using different nanosheets produced from liquid phase exfoliation and can be used to predict the average nanosheet sizes
Stuart Goldie   +9 more
wiley   +1 more source

On Frege`s theory of natural numbers and necessity of intuitions in mathematics

open access: yes, 2020
This thesis attempts to argue against Frege?s theory of arithmetic and points out the logical andmathematical discrepancies of his system according to which arithmetic could be built on purelylogical grounds and hence could have foundations devoid of intuitions. It concentrates mainly on the?definite article premise?
openaire   +1 more source

4D Bioprinted Self‐Folding Scaffolds Enhance Cartilage Formation in the Engineering of Trachea

open access: yesAdvanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
A bilayer self‐folding scaffold, triggerable by humidity, is fabricated via 4D bioprinting for trachea engineering. An analytical model is derived to predict its radius of curvature, enabling its scalability. Cartilage progenitor cells seeded on the scaffold perceive scaffold final curvature and react to it, by enhancing the upregulation of pro ...
Irene Chiesa   +4 more
wiley   +1 more source

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