Results 71 to 80 of about 3,540,991 (285)

Demagnetization‐Driven Nanoscale Chirality‐Selective Phonon Transport

open access: yesAdvanced Materials, EarlyView.
Chiral heat flow is switched in a ferromagnet/chiral α‐SiO2 heterostructure by controlling the angular momentum of demagnetization‐driven chiral phonons. When phonon handedness matches the crystal chirality, nanoscale thermal transport is enhanced; the opposite handedness suppresses transport, establishing a magnetization‐tunable chiral phonon diode ...
In Hyeok Choi   +8 more
wiley   +1 more source

An integrated thermo-electro-mechanical spectral-Ritz framework for FG-GOri piezoelectric elliptical sector plates: sensitivity analysis and active control

open access: yesInternational Journal of Smart and Nano Materials
This study presents an integrated coupled thermo-electro-mechanical spectral-Ritz framework for the vibration and active control of functionally graded graphene-origami reinforced (FG-GOri) piezoelectric elliptical sector plates under thermal loading.
Yongjun Xiao, Aimei Liu, Ali Ghasemi
doaj   +1 more source

Breaking Bottlenecks in Solid Electrolyte Discovery With Large Artificial Intelligence Models

open access: yesAdvanced Materials, EarlyView.
Large AI models are presented as a route to break key bottlenecks in solid electrolyte discovery by linking materials databases, machine‐learning interatomic potentials, large language models, and autonomous experiments. This perspective highlights how AI can accelerate the identification of solid electrolytes with fast ion transport, stable interfaces,
Eric Jianfeng Cheng   +24 more
wiley   +1 more source

Model-based structural isolation of concurrent electro-thermal faults for eVTOL battery systems

open access: yesGreen Energy and Intelligent Transportation
Battery fault diagnosis is a prerequisite for safety certification to electric vertical take-off and landing (eVTOL) aircraft. Unlike ground vehicles, eVTOL systems operate under a zero-failure tolerance regime, as even minor battery anomalies can ...
Chenxu Wang   +4 more
doaj   +1 more source

Electro-Kinetic Pumping with Slip Irreversibility in Heat Exchange of CSP-Powered Bio-Digester Assemblies

open access: yesEntropy, 2012
Parametric studies of the effects of slip irreversibility in concentrating solar power (CSP)-powered bio-digester assemblies are investigated. Complexities regarding the identification of the appropriate electro-kinetic phenomena for certain electrolyte ...
Emmanuel O.B. Ogedengbe, Marc A. Rosen
doaj   +1 more source

Chiral Phonon–Driven Ultrafast Spin Currents in a Non‐Magnetic Ferroelectric

open access: yesAdvanced Materials, EarlyView.
Broadband terahertz emission spectroscopy shows signatures of ultrafast spin‐current generation in non‐magnetic ferroelectric β$\beta$’‐In2Se3${\rm In}_2{\rm Se}_3$. Reversal of the emitted field upon sample inversion and substitution of Pt with W indicates spin‐Hall‐mediated charge conversion, while polarization‐resolved measurements reveal ...
Thomas B. Gill   +16 more
wiley   +1 more source

Junction Temperature Estimation Model of Power MOSFET Device Based on Photovoltaic Power Enhancer

open access: yesJournal of Low Power Electronics and Applications
In a photovoltaic power enhancer system, when it is operated in current-control mode, significant nonuniform temperature distribution occurs in the converter due to thermal coupling effects, dissipative boundary conditions, and differences in device ...
Ning Li, Shubin Zhang, Yanfeng Jiang
doaj   +1 more source

Disentangling Polaron Formation Pathways in Y6 by Probing Noninteracting and Interacting Chromophores via Transient Absorption Spectroscopy

open access: yesAdvanced Materials, EarlyView.
The central role of both electronically interacting and noninteracting chromophores in the photogeneration of charges has been unambiguously identified by ultrafast pump‐probe spectroscopy in thin films of the prototypical non‐fullerene acceptor Y6. Onsager‐like autoionization from higher‐energy excitations on Y6 aggregates is found to control polaron ...
Daniel Kroh   +3 more
wiley   +1 more source

Dynamic Tensile Properties of CuCrZr Alloy under Electro-Magnetic-Thermal-Mechanical Multifield Coupled Loading

open access: yesGaoya wuli xuebao
Obtaining the mechanical response of CuCrZr alloy under coupled electro-magnetic-thermal-mechanical loading is significant for the engineering application of CuCrZr alloy, which is one of the candidate materials for electromagnetic railgun rails.
Rina SU   +6 more
doaj   +1 more source

Biomass DNA: An Emerging Building Block for Advanced Materials

open access: yesAdvanced Materials, EarlyView.
Biomass DNA is rapidly emerging from its traditional role as a genetic blueprint to serve as a versatile abundant, highly programmable polymeric building block. This review highlights the transformation of macroscopic bulk biomass DNA into next generation of functional materials, spanning from dynamic hydrogels, sustainable bioplastics, and high ...
Yuwei Hu, Itamar Willner, Li Niu
wiley   +1 more source

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