Results 51 to 60 of about 21,925 (307)

Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release

open access: yesAdvanced Engineering Materials, EarlyView.
Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro   +3 more
wiley   +1 more source

225m Outdoor W-Band Radio-over-Fiber Link Using an Optical SFP+ Module [PDF]

open access: yes, 2016
A W-band radio-over-fiber link based on a commercial SFP+ module is demonstrated, allowing easy integration into existing PON solutions.
Chorchos, Łukasz   +7 more
core   +1 more source

Copper Nanocrystallization in Anodic Oxide Films of Ti–Cu‐Based Bulk Metallic Glass and Its Effect on the Corrosion Resistance and Cytocompatibility

open access: yesAdvanced Engineering Materials, EarlyView.
Viktoriia Shtefan, Thorgund Nemec, Ute Hempel, Annett Gebert and coworkers demonstrate that anodic treatment of Ti–Cu‐based metallic glass in a nontoxic pyrophosphate electrolyte forms a protective bilayered Ti/Zr‐oxide film enriched with Cu nanocrystals.
Viktoriia Shtefan   +8 more
wiley   +1 more source

Converged Radio Over Fiber and OFDM-PON based on Single-Sideband Frequency Translation Technique

open access: yesInternational Journal of Technology, 2019
Future passive optical networks will require simultaneous provision of wired and wireless services to provide high-capacity and high-speed information access network to overcome the capacity demand.
Taha H. Dahawi   +4 more
doaj   +1 more source

Hybrid Radio over Fiber and Visible Light (RoF-VLC)Communication System [PDF]

open access: yes, 2011
We experimentally demonstrate the integration of Radio-over-Fiber and Visible Light Communication technologies, into a hybrid system for indoor communication.
A. M. Khalid   +4 more
core   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song   +4 more
wiley   +1 more source

Dual sideband receiver for radio-over-fiber

open access: yesOptics Express
A dual sideband reception scheme for radio-over fiber (RoF) links is introduced. It is shown that the new receiver can increase the performance of noise-limited systems by up to 3 dB (2.97 dB in a lab back-to-back experiment). The receiver scheme exploits the fact that current RoF links do not realize their full potential.
Yannik Horst   +8 more
openaire   +4 more sources

Implementation of a Multi-Gbit/s and GFDM-based Optical-Wireless 5G Network

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
We report the implementation of an optical-wireless 5G network based on generalized frequency division multiplexing (GFDM) and multi-Gbit/s communication.
R. M. Borges   +5 more
doaj   +1 more source

Coherent Radio-Over-Fiber and Millimeter-Wave Radio Seamless Transmission System for Resilient Access Networks

open access: yesIEEE Photonics Journal, 2012
We propose a millimeter-wave (MMW) coherent radio-over-fiber (RoF) transmission system for application to an access network with a direct broadband last-mile wireless connection to an optical fiber network.
A. Kanno   +7 more
doaj   +1 more source

UMTS radio-over-fiber pico-cell interconnection employing uncooled DFB lasers for multi-mode fibre modulation bandwidth enhancement [PDF]

open access: yes, 2009
This paper analyzes experimentally the use of distributed feedback lasers (DFB) in order to increase modulation bandwidth in multimode fibres, enabling 3 km bidirectional radio-over-multimode fibre UMTS transmission in a frequency-division duplexing (FDD)
Alemany, Ruben   +2 more
core   +1 more source

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