Results 131 to 140 of about 2,452,929 (296)

Heat‐to‐Electricity Conversion Using Barium Strontium Titanate Multilayer Capacitors

open access: yesAdvanced Science, EarlyView.
Lead‐free barium strontium titanate multilayer capacitors convert waste heat into electricity via the Olsen electro‐thermodynamic cycle. These capacitors achieve an energy density of 3.7 J cm−3, comparable to the performance of lead‐based ceramics. Their high dielectric strength and broad operating temperature window below 100°C make them practical for
Fan Ni   +10 more
wiley   +1 more source

Curvature–Matter Feedback in Semiclassical Cosmology: A Reduced Mathematical Framework for Geometry-Induced Quantum Matter Production

open access: yesAxioms
Quantum fields on a time-dependent geometry can undergo particle production, but this does not establish a self-amplifying response of the geometry.
José Luis Díaz Palencia
doaj   +1 more source

19. Coercive Diplomacy:

open access: yes, 2015
This chapter examines how coercive diplomacy has emerged as a strategy for states in dealing with the opponent without resorting to full-scale war.
Peter Viggo Jakobsen
core   +1 more source

Van der Waals Heterostructures for Next‐Generation Spintronics: Multiferroic‐Mediated Magnetoelectric Properties

open access: yesAdvanced Science, EarlyView.
As CMOS technology approaches fundamental energy limits, new paradigms for low‐power information processing are required. Magnetic systems are attractive for their spin transport, yet current‐induced magnetization control is energy inefficient. Multiferroic heterostructures enable energy‐efficient electric field manipulation of magnetism.
Donghyeon Lee   +3 more
wiley   +1 more source

Artificial Grain Boundaries Created by Freestanding Membrane Transfer Reveal Angle‐Dependent Ferroelectric Switching and Leakage in BaTiO3

open access: yesAdvanced Science, EarlyView.
Artificial grain boundaries are created in BaTiO3$\text{BaTiO}_3$ thin films by freestanding membrane transfer, enabling direct isolation of a single boundary. Local ferroelectric switching and leakage are found to concentrate at the grain boundary, while increasing misorientation systematically enhances conduction.
Shin‐Rou Yin   +13 more
wiley   +1 more source

Observation of Magnetic‐Anisotropy Crossover and High‐Temperature Skyrmions in the Dirac Magnet Fe3Ge with a Distorted Kagome Lattice

open access: yesAdvanced Science, EarlyView.
A temperature‐driven magnetic anisotropy crossover is revealed in the Dirac kagome magnet Fe3Ge with a distorted kagome lattice. The transition from easy‐plane to easy‐axis magnetic anisotropy stabilizes robust Bloch‐type skyrmions over an exceptionally wide temperature window of 375–650 K.
Yalei Huang   +15 more
wiley   +1 more source

Intrinsic ferroelectric elastomers with ultrahigh Curie temperature and fast polarization switching

open access: yesNature Communications
Ferroelectric materials are well-suited for advanced wearable electronics, where elasticity and user comfort are paramount. Nevertheless, current ferroelectric elastomers, primarily based on polyvinylidene fluoride (PVDF) copolymers, suffer from low ...
Yuxin Wang   +7 more
doaj   +1 more source

AI‐Assisted Tumor Boundary Delineation via Targeted Ultrasmall Iron Oxide Nanoprobe for High‐Contrast HER2‐Positive Tumor Imaging

open access: yesAdvanced Science, EarlyView.
A novel targeted and pH‐responsive MRI contrast agent was integrated with a 3D nnU‐Net deep learning framework to enable accurate delineation of tumor boundary morphology in HER2‐positive breast cancer imaging. ABSTRACT Breast cancer continues to be a leading cause of cancer‐related mortality in women globally, where precise diagnosis and clear tumor ...
Jiaying Zheng   +7 more
wiley   +1 more source

Kids' Coercive Control Web [PDF]

open access: yes
LeafletChildren's coercive control web ...
Barnardos
core   +1 more source

The stability imperative ::human rights and law in China /

open access: yes, 2015
The Stability Imperative: Human Rights and Law in China reveals how the systematic failure of the legal system to protect rights coupled with an overemphasis on coercive forms of stability preservation is undermining the authority of law in China and ...
Biddulph, Sarah,
core  

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