Results 171 to 180 of about 10,515,150 (288)

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

NURSE BURNOUT: A REVIEW OF THE LITERATURE ON POSSIBLE INTERVENTIONS

open access: yes
reservedLa revisione della bibliografica che è stata condotta va ad analizzare quando la sindrome da Burn-out sia presente tra gli infermieri a livello globale, quali strumenti vengono maggiormente utilizzati per la rilevazione di tale sindrome e ...
BITTANTE, NICOLA
core  

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

open access: yesAdvanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting   +5 more
wiley   +1 more source

Four-Year Outcomes of Anterior Pressed Lithium Disilicate Veneers Fabricated from 3D-Printed Burn-Out Patterns: A Clinical Case Report. [PDF]

open access: yesDent J (Basel)
Oliver-Rivas SS   +5 more
europepmc   +1 more source

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

open access: yesAdvanced Materials Technologies, EarlyView.
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco   +4 more
wiley   +1 more source

High Psychological Impact of Covid-19 on French Healthcare Workers: An Observational Cohort Study of PTSD, Depression and Burn-Out. [PDF]

open access: yesHealth Expect
El-Hage W   +19 more
europepmc   +1 more source

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