Results 11 to 20 of about 77,555 (243)
Super resolution passive radars based on 802.11ax Wi‐Fi signals for human movement detection
IET Radar, Sonar & Navigation, 2021 Passive Radars based on Wi‐Fi signals provide an excellent opportunity for human sensing without violating the privacy of individuals. Due to the limited integration time of Wi‐Fi bursts and relatively low bandwidths, Fourier Transform‐based methods do ...
Hasan Can Yildirim +6 more
doaj +1 more source
Analysis of residual CFO impact on downlink massive MISO systems
Electronics Letters, 2019 Massive antenna technologies provide a good power focusing gain for emerging communication systems. They can easily be integrated into an orthogonal frequency‐division multiplexing (OFDM) system.
T.‐H. Nguyen +5 more
doaj +1 more source
Fiber characterization for single-photon frequency conversion applications [PDF]
EPJ Web of ConferencesBragg Scattering Four-Wave mixing (BS-4WM) is used in fibers to frequency shift single photons. We investigate how its phase matching condition can be controlled by changing the fiber temperature. We then are able to optimize the efficiency of the BS-4WM
Deroo-Blanquart Clélia +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Co‐assembly of rationally designed glycosaminoglycan‐binding peptides with sulfated glycosaminoglycans yields supramolecular hydrogels with tunable mechanics and matrix‐mediated cytokine retention. The glycosaminoglycans thereby act as cofactors, driving a coil‐to‐β‐sheet transition that triggers gelation.
Shirel Veretnik +8 more
wiley +1 more source
Scientific Reports, 2023 A considerable variety of donor–acceptor (D–A) combinations offers the potential for realizing highly efficient thermally activated delayed fluorescence (TADF) materials.
Bhagya Madushani +6 more
doaj +1 more source
Advanced Materials, EarlyView.The Y supersaturation in the [Ba‐Cu(I/II)‐O] transient liquid composition is the driving force toward YBCO nucleation and growth in TLAG. Tuning the initial (Ba:Cu) molar ratio in the ink composition determines the YBCO epitaxial nucleation through supersaturation control.
Lavinia Saltarelli +12 more
wiley +1 more source
Advanced Materials, EarlyView.A microfluidic method is presented which enables parallelized fabrication of rod‐shaped microgels, based on step‐emulsification (SE) droplet generation and subsequent droplet distribution and confinement, combined in a single device. Microgel rods are fabricated in parallel at different flow rates based on two light‐mediated crosslinking chemistries ...
Matthias Mork +5 more
wiley +1 more source
Nature Communications, 2020 Though organic light-emitting diodes are highly desirable for display and lighting applications, efficiency roll-off at high current densities limits its applicability.
Buddhika S. B. Karunathilaka +8 more
doaj +1 more source
Enhancing Maturation of Human Neuromuscular Organoids via Electrical Stimulation
Advanced Science, EarlyView.A framework for on‐demand and non‐invasive exposure of human neuromuscular organoids (NMOs) to electrical stimuli is established to promote their maturation. The robustness and effectiveness of different stimulation regimes are evaluated via thorough characterization of organoid tissue structure and contraction capacity. Chronic electrical stimulation,
Chrysanthi‐Maria Moysidou +12 more
wiley +1 more source
IET Radar, Sonar & Navigation, 2022 In recent years, Wi‐Fi has become the main gateway that connects users to the Internet. Considering the availability of Wi‐Fi signals, and their suitability for channel estimation, IEEE established the Wi‐Fi Sensing (WS) Task Group whose purpose is to ...
Hasan Can Yildirim +4 more
doaj +1 more source