Results 41 to 50 of about 1,630 (197)

Advanced Manufacturing of Composite‐Based Systems for Energy Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Advanced manufacturing enables the integration of polymers, ceramics, metal oxides, and composites into architected microstructures with tailored transport pathways. By coupling material selection, manufacturing strategy, and structural design, multifunctional energy systems can simultaneously improve electrochemical performance, thermal management ...
Sri Vaishnavi Thummalapalli   +13 more
wiley   +1 more source

Interference-assisted energy harvesting short packet communications with hardware impairments

open access: yesInternational Journal of Intelligent Networks
Radio frequency energy harvesting offers a promising solution to provide low power Internet of Things (IoT) devices with convenient and perpetual energy supply.
Dechuan Chen   +5 more
doaj   +1 more source

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja   +9 more
wiley   +1 more source

WS2 Micro‐Dome Single Photon Source in a Tunable Open Cavity

open access: yesAdvanced Optical Materials, EarlyView.
In this work, a single‐photon source based on WS2 micro‐domes is realized and integrated into an open, tunable optical microcavity. Single‐photon emission from the coupled emitter–cavity system is observed. Detailed analysis shows that a pronounced acoustic phonon emission sideband contributes specifically to the non‐resonant emitter–cavity coupling in
Jens‐Christian Drawer   +15 more
wiley   +1 more source

Recent Advances and Challenges in Security and Privacy for V2X Communications

open access: yesIEEE Open Journal of Vehicular Technology, 2020
In recent studies, vehicular networks have been considered as a promising solution to achieve better traffic management and to improve the driving experience of drivers. In vehicular networks, vehicle-to-everything (V2X) services, e.g.
Jiaqi Huang   +3 more
doaj   +1 more source

On‐Chip Photonic Neural Network Architectures

open access: yesAdvanced Optical Materials, EarlyView.
This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong   +7 more
wiley   +1 more source

SWIPT-Enabled Full-Duplex Short Packet Communications With Nonlinear Energy Harvesting

open access: yesInternational Journal of Distributed Sensor Networks
In this work, we examine a simultaneous wireless information and power transfer (SWIPT)–enabled full-duplex (FD) short packet communication system in which both users are equipped with a pair of transmitter–receiver antennas and can transmit and receive ...
Dechuan Chen   +5 more
doaj   +1 more source

CAPITAL STRUCTURE AND FINANCIAL PERFORMANCE OF LISTED INFORMATION AND COMMUNICATIONS TECHNOLOGY FIRMS IN NIGERIA

open access: yesGusau Journal of Accounting and Finance
This study seeks to examine the effect of capital structure on financial performance of the listed information and communications technology firms in Nigeria. This study adopted correlation and ex-post facto research design. The population of this study
Nasiru Adamu Kanoma   +5 more
doaj   +1 more source

Chiral Porphyrin Monolayers on Ferromagnetic Thin Films: Ultrafast Spectroscopy of Hybrid Interfaces

open access: yesAdvanced Optical Materials, EarlyView.
Chiral porphyrin–oligopeptide monolayers covalently bound to Au‐capped Co/Ni multilayers form surface‐parallel J‐type aggregates and exhibit measurable singlet‐state transient absorption despite monolayer coverage. Femtosecond pump–probe spectroscopy reveals strong excited‐state quenching at the metal interface, yet no long‐lived charge‐transfer ...
Karol Hauza   +7 more
wiley   +1 more source

How to set up government-led national hygiene communication campaigns to combat COVID-19: a strategic blueprint

open access: yesBMJ Global Health, 2020
While large-scale changes in population behaviour are required to reduce the transmission of the severe acute respiratory syndrome coronavirus 2 virus, the emergency context is not conducive to the sort of careful communications planning that would ...
Chris Bonell   +9 more
doaj   +1 more source

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