Results 81 to 90 of about 8,251 (220)

Active Control of Bound States in the Continuum in Toroidal Metasurfaces

open access: yesAdvanced Photonics Research
The remarkable properties of toroidal metasurfaces, featuring ultrahigh‐Q bound states in the continuum (BIC) resonances and nonradiating anapole modes, have garnered significant attention.
Fedor V. Kovalev   +4 more
doaj   +1 more source

Current Situation of Vanadium Resources and New Process Progress of Vanadium Extraction from the Stone Coal Vanadium Ore

open access: yesKuangchan zonghe liyong
The main occurrence minerals of vanadium include vanadium titanomagnetite, stone coal vanadium and vanadium lead ores. At present, the vanadium extraction processes of stone coal vanadium ore are mainly sodium roasting-water leaching and calcification ...
Jinwei QU   +4 more
doaj   +1 more source

Mechanical stability in flexible perovskite solar cells: Interface engineering and device design

open access: yesFlexMat, EarlyView.
Statistics of the improvement methods for f‐PSCs. Abstract Flexible perovskite solar cells (f‐PSCs) demonstrate significant potential for application in next‐generation wearable electronic devices and photovoltaic building integration due to their high power conversion efficiency and excellent power‐to‐weight ratio. However, the inherent brittleness of
Hong‐Yi Hou   +3 more
wiley   +1 more source

Metamaterial-Enhanced Nonlinear Terahertz Spectroscopy

open access: yesEPJ Web of Conferences, 2013
We demonstrate large nonlinear terahertz responses in the gaps of metamaterial split ring resonators in several materials and use nonlinear THz transmission and THz-pump/THz-probe spectroscopy to study the nonlinear responses and dynamics.
Zhang X.   +10 more
doaj   +1 more source

A visible‐to‐infrared miniaturized indium selenide spectrometer enabled by a gate‐tunable spectral response matrix

open access: yesInfoScience, EarlyView.
Traditional light‐analyzing tools, known as spectrometers, are typically too bulky and expensive to fit into portable electronics like smartphones or wearables. In this study, we developed a microscopic, high‐performance spectrometer using a material called Indium Selenide combined with smart algorithms to accurately analyze light from the visible to ...
Jing Chen   +8 more
wiley   +1 more source

Broadband Three-Mode Tunable Metamaterials Based on Graphene and Vanadium Oxide

open access: yesNanomaterials
Terahertz waves have great potential for applications in security imaging, wireless communication, and other fields, but efficient and tunable terahertz-absorbing devices are the key to their technological development.
Hao Wen   +5 more
doaj   +1 more source

Soil Contamination Around the Copper Smelter and the Use of Soil Microarthropods as Bioindicators

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Soil contamination from smelter emissions, including heavy metals (HM), rare earth elements (REEs), and sulfur, poses a significant threat to soil ecosystems. In the immediate vicinity of the Głogów Copper Smelter, HM concentrations were several times higher than in more distant forest stands.
Jacek Malica   +10 more
wiley   +1 more source

Application of Circular Economy Principles to Power Generation: Extending the Life of A Hydropower Plant by Pumped Hydro Energy Storage

open access: yesSustainable Development, EarlyView.
ABSTRACT The application of circular economy, which aims to maximize efficiency and reduce waste, to renewable energy sources necessitates, given the intermittent nature of the latter, robust energy storage solutions to ensure grid stability and avoid wasting energy.
Ó. Martín‐Llorente   +4 more
wiley   +1 more source

Adaptive Metafilm With Scalable Phase‐Tunable Emissivity for Energy‐Efficient Thermal Management

open access: yesSmall, EarlyView.
ABSTRACT Efficient thermal management of enclosed systems through controlled manipulation of radiative cooling power represents a key functionality of adaptive composite metamaterials. Such materials enable precise regulation of heat emission under varying environmental conditions while maintaining scalability and durability.
James Laurence Ruello   +6 more
wiley   +1 more source

Emerging Aluminum‐Ion Capacitors and Lessons from Battery Chemistry

open access: yesSmall, EarlyView.
Al‐ion energy storage is gaining momentum as demand grows for safer, lower‐cost, and more sustainable alternatives to Li‐based technologies. Aluminum's abundance, recyclability, and trivalent charge offer high charge capacity and scalable device potential.
Smita Talande   +7 more
wiley   +1 more source

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