Results 1 to 10 of about 74,206 (229)

Super resolution passive radars based on 802.11ax Wi‐Fi signals for human movement detection

open access: yesIET 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

Suppression of external quantum efficiency rolloff in organic light emitting diodes by scavenging triplet excitons

open access: yesNature 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

Analysis of residual CFO impact on downlink massive MISO systems

open access: yesElectronics 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]

open access: yesEPJ Web of Conferences
Bragg 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

House Opera | Opera House [PDF]

open access: yesARQ (Santiago), 2015
?Que valor puede generar la arquitectura cuando ya no hay valor de mercado? Luego de que la crisis del 2008 hiciera caer los precios de las viviendas en Detroit a niveles inusuales, este proyecto logra transformar una casa desocupada en una infraestructura de cultura comunitaria. Entendida como una opera, la casa no solo pasa a ser una obra en si misma,
McEwen, Mitch, López-Dinardi, Marcelo
openaire   +2 more sources

Multiple donor–acceptor design for highly luminescent and stable thermally activated delayed fluorescence emitters

open access: yesScientific 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

A multi‐antenna super‐resolution passive Wi‐Fi radar algorithm: Combined model order selection and parameter estimation

open access: yesIET 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

OPERa Study [PDF]

open access: yesKlinicka onkologie, 2013
On the whole, most European and international guidelines recommend prophylactic use of granulocyte-colony stimulating factors (G-CSFs) when the risk of chemotherapy-induced febrile neutropenia (FN) in cancer patients exceeds 20%. In patients treated with intermediate-risk chemotherapy regimens the recent EORTC guidelines recommend to consider ...
openaire   +2 more sources

Art in the Age of Globalisation: Dialogue of Cultures (Ural Opera Ballet Theatre’s Production of the Opera Tri Sestry)

open access: yesChanging Societies & Personalities, 2020
The article explores the dialogics of art and the role of art as a tool of dialogue between cultures on the example of the Ural Opera Ballet Theatre’s recent stage production of the opera Tri Sestry (Three Sisters), which demonstrates a successful ...
Andrey G. Shishkin, Olga O. Morozova
doaj   +1 more source

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