Results 271 to 280 of about 1,449,714 (389)

An experimental dataset using UAVs and LoRa technology in avalanche scenarios. [PDF]

Data Brief
Mavilia F, La Rosa D, Berton A, Girolami M.   +3 more
europepmc   +1 more source

Radio holography using MIMO retrodirective antenna array

В. И. Калинин, V. V. Chapursky
openalex   +1 more source

Dual diversity antennas for hand-held radio

, 1993
Mark Gordon Douglas
openalex   +1 more source

Locking Metastable Topological Domains in Nematic Liquid Crystal Pi Cells

Advanced Functional Materials, EarlyView.
Selective photopolymerization in the presence of a controlled voltage defines permanent director walls that lock‐in metastable bend and twist configurations within nematic liquid crystal Pi cells. Q‐tensor simulations corroborate the experiments, demonstrating the topological state stabilization.
Adithya Pradeep, Urban Mur, Junseok Ma, Nathan Spiller, Yihan Jin, Waqas Kamal, Steve J. Elston, Stephen M. Morris   +7 more
wiley   +1 more source

Experimental investigation on slotted Koch snowflake fractal patch rectenna. [PDF]

Sci Rep
Seng MW, Shareef HL, Chan PY, Teh YH, Low CFY.   +4 more
europepmc   +1 more source

Determination of the Direction to the Source of Radio Emission in a Radio Direction Finder with a Five-Element Ring Antenna Array and Total Difference Processing

Builou Yauheni, А. С. Солонар, Р. V. Boykachev, I. A. Dubovik, I. B. Kozhabaeva   +4 more
openalex   +2 more sources

SMaRT Stacking: A Methodology to Produce Optimally Layered EMI Shields with Maximal Green Index Using Fused Deposition Modeling

Advanced Functional Materials, EarlyView.
Electromagnetic interference (EMI) shields consisting of polylactic acid (PLA) in layers with different concentrations of multiwalled carbon nanotubes (MWCNT) are produced using additive manufacturing. The permittivity function of layers with different filler concentrations is learned using data of homogeneous and randomly ordered shields.
Stijn De Smedt, Brecht Evens, Pramod Ravichandran, Panagiotis Patrinos, Frederik Van Loock, Ruth Cardinaels   +5 more
wiley   +1 more source

Probing Optical Magnetic Dipole Transitions in Eu³⁺ Using Structured Light and Nanoscale Sample Engineering. [PDF]

ACS Photonics
Gangrskaia E, Schachinger T, Eisenmenger-Sittner C, Grünewald L, Mai S, Baltuška A, Pugžlys A, Bellissimo A.   +7 more
europepmc   +1 more source

Advanced Surface Engineering and Passivation Strategies of Quantum Dots for Breaking Efficiency Barrier of Clean Energy Technologies: A Comprehensive Review

Advanced Functional Materials, EarlyView.
This review describes the different surface engineering strategies for quantum dots that addresses the challenges associated with surface defects, highlighting their role in enhancing the performance of solar energy conversion technologies. Abstract Colloidal quantum dots (QDs) have garnered significant attention for their unique potential in clean ...
Kokilavani S., Gurpreet Singh Selopal
wiley   +1 more source

Robust Beamforming Design for Energy Efficiency and Spectral Efficiency Tradeoff in Multi-STAR-RIS-Aided C-HRSMA. [PDF]

Sensors (Basel)
Teng S, Lin X, Wang Y.
europepmc   +1 more source