Results 141 to 150 of about 2,187,861 (343)

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

open access: yesAdvanced Functional Materials, EarlyView.
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

Microscopic origin of the entropy of single-sided black holes

open access: yesJournal of High Energy Physics
In this paper, we provide a state-counting derivation of the Bekenstein-Hawking entropy formula for single-sided black holes. We firstly articulate the concept of the black hole microstates.
Hao Geng, Yikun Jiang
doaj   +1 more source

3D‐Printed Hygroscopic Polymer Networks for High‐Humidity Triboelectric Nanogenerators to Wirelessly Power Implantable Electronic Devices‐ A Conceptual Pathway

open access: yesAdvanced Functional Materials, EarlyView.
This work develops 3D‐printable tribopolymer networks that can enhance triboelectric performance under high humidity environments. Polar hydrophilic functional groups and incorporation of zwitterionic monomers promote bound‐water–dominated interfacial polarization thereby increasing electrical outputs.
Linguangze Zhuo   +8 more
wiley   +1 more source

Conformal field theory with periodic time

open access: yesJournal of High Energy Physics
It is shown that time-ordered correlation functions of a unitary CFT2 in 2D Minkowski space admit a single-valued, conformally-invariant extension to the Lorentzian signature torus provided that the S 1 × S 1 spatial and temporal radii are equal.
Walker Melton, Andrew Strominger
doaj   +1 more source

The Laws of Nature and the Nature of Law

open access: yes, 2017
In the present work, the author narrates the transition occurred don the science realm, going from a rationalist and mechanist vision of the world, to a more holistic and ecologist one. Still, he shows that this transition has not occurred in the realm of law, which still remains in the previous paradigm.
openaire   +1 more source

XV. Biology and the Rise of the Social Sciences

open access: yes, 1958
Modern science, it has been said, has undergone three revolutions: the Copernican, the Newtonian, and the Darwinian. This oversimplification is valid if our standard of judgment is social impact.
Bloom, Robert L.   +6 more
core  

Tracing Sub‐Monolayer Contamination on Wafer‐Scale 2D Materials

open access: yesAdvanced Functional Materials, EarlyView.
Sub‐monolayer adventitious carbon contamination limits the performance and reproducibility of 2D material‐based devices. This study demonstrates scanning helium microscopy (SHeM) as a non‐destructive, ultra‐sensitive tool for wafer‐scale imaging of surface cleanliness.
Chenyang Zhao   +7 more
wiley   +1 more source

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