Results 41 to 50 of about 456,840 (250)

PINTO, António Guimarães, Apostilas a António Luís. 1.António Luís e João de Barros, 2.António Luís, António Pinheiro e Rodrigo Sánchez, Cátedra de Estudos Sefarditas “Alberto Benveniste”, Centro de Línguas e Culturas da Universidade de Aveiro, 2013.

open access: yesHumanitas, 2015
PINTO, António Guimarães, Apostilas a António Luís. 1.António Luís e João de Barros, 2.António Luís, António Pinheiro e Rodrigo Sánchez, Cátedra de Estudos Sefarditas “Alberto Benveniste”, Centro de Línguas e Culturas da Universidade de Aveiro, 2013 ...
Carlota Miranda Urbano
doaj  

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

open access: yesAdvanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone   +11 more
wiley   +1 more source

Evaluation of healing at molar extraction sites with ridge preservation using a non‐resorbable dense polytetrafluoroethylene membrane: A four‐arm cohort prospective study

open access: yesClinical and Experimental Dental Research, 2021
Objectives To examine ridge dimensional changes and histologic parameters of healing when ridge preservation (RP) was performed at molar sites using dense polytetrafluoroethylene (dPTFE) membrane alone, without a bone graft. Material and Methods Eighteen
Arwa M. Al Hugail   +8 more
doaj   +1 more source

Giant Magnetic Coercivity Driven by Spin‐Bag Ferromagnetism in Epitaxial Sr3YCo4O10+δ Films with Engineered 2D Oxygen Vacancy Ordering

open access: yesAdvanced Functional Materials, EarlyView.
A giant magnetic coercivity and a vertical shift of hysteresis loops are demonstrated in Sr3YCo4O10+δ epitaxial films. The hard magnetic behavior originates from ferromagnetic spin bags stabilized within a long‐range ordered oxygen‐vacancy structure.
Yanbin Chen   +12 more
wiley   +1 more source

Si‐Doped Nanocrystalline Diamond as Highly Sensitive Luminescence Thermometer for the Physiological Temperature Range

open access: yesAdvanced Functional Materials, EarlyView.
In this work, diamonds with negative charged silicon‐vacancy (SiV−) centers have been designed for use as thermometers in biomedical applications. Multiparametric analysis of the emission characteristics of the SiV− centers provides extraordinary sensitivity for temperature detection in the physiological temperature range.
María Gragera   +6 more
wiley   +1 more source

Engineering Local Polar Frustration in Lead‐Free Dielectric Ceramics for Ultrahigh Normalized Energy Storage Performance

open access: yesAdvanced Functional Materials, EarlyView.
Local polar frustration is engineered to stabilize an ergodic relaxer through nanoscale multiphase coexistence, suppressing long‐range ferroelectric order while preserving high polarization. This strategy delivers ultrahigh low‐field normalized energy density (Wa >0.020 mC cm−2), exceptional thermal stability, and a transferable design principle for ...
Hareem Zubairi   +9 more
wiley   +1 more source

Entrevista de Antonio Candido sobre Jurandir Ferreira

open access: yesScripta, 2019
Resumo
Ludmila Menezes Zwick
doaj   +1 more source

Transient Charging of Mixed Ionic‐Electronic Conductors by Anomalous Diffusion

open access: yesAdvanced Materials, EarlyView.
This article explores charge transport in mixed ionic‐electronic conductors (MIECs) through electrochemical impedance spectroscopy and transient current analysis. Focusing on PEDOT:PSS, WO3, and n‐doped PBDF, it uncovers the impact of anomalous diffusion via fractional modeling. The study reveals key correlations that deepen understanding and guide the
Heyi Zhang   +9 more
wiley   +1 more source

Lo bueno, si breve, tres veces bueno: la escritura aforística de Antonio Machado, Antonio Porchia y José Bergamín

open access: yesRevista de Literatura, 2020
Este artículo reflexiona sobre la escritura aforística a partir de una tríada de autores de gran relevancia para la evolución del género en los siglos XX y XXI: Antonio Machado, Antonio Porchia y José Bergamín.
Paulo A. Gatica Cote
doaj   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

open access: yesAdvanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano   +18 more
wiley   +1 more source

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