Results 21 to 30 of about 34,714 (262)

A Review on Metamaterials for Device Applications

open access: yesCrystals, 2021
Metamaterials are the major type of artificially engineered materials which exhibit naturally unobtainable properties according to how their microarchitectures are engineered.
N. Suresh Kumar   +4 more
doaj   +1 more source

Nanoplasmonics in High Pressure Environment

open access: yesPhotonics, 2020
An explosion in the interest for nanoplasmonics has occurred in order to realize optical devices, biosensors, and photovoltaic devices. The plasmonic nanostructures are used for enhancing and confining the electric field.
Grégory Barbillon
doaj   +1 more source

Towards breath sensors that are self-powered by design

open access: yesRoyal Society Open Science, 2022
Piezoelectric materials are widely used to generate electric charge from mechanical deformation or vice versa. These strategies are increasingly common in implantable medical devices, where sensing must be done on small scales. In the case of a flow rate
Lucy Fitzgerald   +4 more
doaj   +1 more source

Electroosmosis in nanopores: computational methods and technological applications

open access: yesAdvances in Physics: X, 2022
Electroosmosis is a fascinating effect where liquid motion is induced by an applied electric field. Counter ions accumulate in the vicinity of charged surfaces, triggering a coupling between liquid mass transport and external electric field.
Alberto Gubbiotti   +5 more
doaj   +1 more source

P-i-n ZnO/CuO/PEDOT:PSS heterojunction featuring Ag nanowire electrode for application in high-performance wearable self-powered ultraviolet detector

open access: yesNext Materials
Excessive exposure to ultraviolet (UV) radiation during outdoor activities poses considerable health risks, necessitating quantitative UV monitoring. This has driven the development of wearable, flexible, and self-powered UV photodetectors capable of ...
Hongmei Liu   +3 more
doaj   +1 more source

Research on the excitation method of symmetrical spiral online detecting sensor of metal debris

open access: yesThe Journal of Engineering, 2019
By connecting the symmetrical spiral inductive sensor to the oil return pipeline of the lubricating oil, a full flow online detection of the size, quantity and other parameters of the tiny metal debris particles in the lubricating oil solution is ...
Yuhai Gu   +3 more
doaj   +1 more source

Calibration of a sensor for an ion electric field under HVDC transmission lines

open access: yesThe Journal of Engineering, 2019
With the development of high-voltage direct-current (HVDC) transmission projects, the issue of electromagnetic compatibility has become more and more severe, especially the synthetic ion flow electric field.
Mou Ya   +7 more
doaj   +1 more source

The sensitivity of ECG contamination to surgical implantation site in brain computer interfaces

open access: yesBrain Stimulation, 2021
Background: Brain sensing devices are approved today for Parkinson's, essential tremor, and epilepsy therapies. Clinical decisions for implants are often influenced by the premise that patients will benefit from using sensing technology.
Wolf-Julian Neumann   +22 more
doaj   +1 more source

Life‐Threatening Bradycardia in Anti‐NMDA‐Receptor Encephalitis and a Novel Use for Permanent Pacing

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Pediatric anti‐NMDA receptor encephalitis (pNMDARE) is an autoantibody‐mediated disorder that can cause severe autonomic dysfunction, including symptomatic bradycardia and asystole. Dysautonomia can last for years, making it very challenging to manage.
Sarah Tucker   +9 more
wiley   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

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