Results 81 to 90 of about 173,398 (217)

A Core-Constrained, Scale-Matched Electroacoustic Fusion Method for Gas Hydrate Saturation Estimation: A Case Study of Well GMGS5-W08

open access: yesJournal of Marine Science and Engineering
Clay-surface conduction in fine-grained, weakly consolidated marine sediments, together with the scale mismatch between core and logging observations, often causes resistivity- and acoustic-based estimates of gas hydrate saturation to diverge.
Pengqi Liu   +8 more
doaj   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou   +3 more
wiley   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

open access: yesAdvanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa   +19 more
wiley   +1 more source

The study of water saturation process of dolomite core under atmospheric pressure by MRI method

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2017
The distribution of the fluid content in the process of water saturation of fine-grained full-sized dolomite core has been measured by magnetic resonance imaging (MRI). Two stages have been allocated in the saturation process. A rapid growth (up to 5 min)
P.P. Kobchikova   +4 more
doaj  

Análisis de la Deformación Del Campo Magnético Rotacional Causada Por Armonicos Homopolares en Motores Trifásicos Con Saturación

open access: yesMundo Fesc
This article analyzes the deformation of the rotational magnetic field in three-phase motors, caused by the presence of zero-sequence harmonics in the current and the effect of ferromagnetic material saturation. Zero-sequence harmonics contribute to core
Laury Katherine Gualdrón Godoy   +2 more
doaj   +1 more source

Chemical State Detection and Charge Transfer in Complex Oxide Heterostructures via In Situ Auger Electron Spectroscopy

open access: yesAdvanced Functional Materials, EarlyView.
In situ Auger Electron Spectroscopy resolves oxidation states with high fidelity during the pulsed laser deposition of multivalent perovskite manganate and vanadate heterostructures. The chemical‐state signature is carried by the valence‐electron population of the transition‐metal cation, read out through the relative intensities of Auger fine ...
Harish Kumarasubramanian   +1 more
wiley   +1 more source

Magnetic Core Material Evaluation for Energy Harvesting Sensors

open access: yesIEEE Access
Current transformer magnetic energy harvesters (CTMEHs) harvest and convert magnetic energy from ac conductors into electrical energy for low-power sensors.
Khang Le, Daniel Monagle, Steven B. Leeb
doaj   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg   +6 more
wiley   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

open access: yesAdvanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke   +3 more
wiley   +1 more source

OPTIMIZACIÓN DE LA METODOLOGÍA PARA EL CALCULO DE POROSIDAD A TRAVES DE SATURACIÓN DE FLUIDOS

open access: yesRevista Fuentes El Reventón Energético, 2014
Porosity determination is a major labor in a petrophysical analysis laboratory, since the reservoir quality, the storage capacity (absolute porosity) and the productivity (effective porosity) depends (in great part) from this property.
Camilo Andrés Guerrero Martin   +3 more
doaj  

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