Results 71 to 80 of about 164,291 (270)
Synthesis‐free backscatter directional modulation communication using Van‐Atta arrays
IET Microwaves, Antennas & Propagation, 2022 Backscatter communication, an emerging ultra‐low‐power wireless communication paradigm, has been studied as a promising solution for wireless communications in some Internet‐of‐Things (IoT) applications.
Gaojian Huang +4 more
doaj +1 more source
Channel Optical Waveguides and Directional Couplers in GaAs -- Imbedded and Ridged [PDF]
, 1973 Two-channel imbedded directional couplers were fabricated with proton implantation, yielding complete light transfer in 2 mm. Ridged channel guides were fabricated by ion-micromachining epitaxial layers, and a method of directional coupling was ...
Garmire, E. +4 more
core +2 more sources
Advanced Functional Materials, EarlyView.Coating the standard polypropylene separator with a porous red phosphorous nanosheet greatly improves cycling performance in Li electrode cells. The phosphorus‐based surface chemistry deactivates electrolyte solvent decomposition and enhances the cleavage of F‐containing salt, resulting in an inorganic‐dominated electrolyte interphase (SEI) composition
Jiangpeng Wang +9 more
wiley +1 more source
Fourier Rotman Lens Enabled Directional Modulation Transmitter
International Journal of Antennas and Propagation, 2015 A 10 GHz Fourier Rotman lens enabled dynamic directional modulation (DM) transmitter is experimentally evaluated. Bit error rate (BER) performance is obtained via real-time data transmission.
Yuan Ding, Yunhua Zhang, Vincent Fusco
doaj +1 more source
Photonics, 2022 Simulation and experimental performance analyses of simultaneous up-converted signals, for the first time, were investigated utilizing a semiconductor optical amplifier Mach–Zehnder interferometer (SOA-MZI) sampling mixer in co- and counter-directions ...
Hassan Termos +2 more
doaj +1 more source
Measurements of ocean wave spectra and modulation transfer function with the airborne two frequency scatterometer [PDF]
, 1984 The directional spectrum and the microwave modulation transfer function of ocean waves can be measured with the airborne two frequency scatterometer technique.
Johnson, J. W., Weissman, D. E.
core +1 more source
The modulation effect for supersymmetric dark matter detection with asymmetric velocity dispersion
, 2000 The detection of the theoretically expected dark matter is central to particle physics cosmology. Current fashionable supersymmetric models provide a natural dark matter candidate which is the lightest supersymmetric particle (LSP).
A. Bottino +72 more
core +2 more sources
Direct summands of direct products of slender modules [PDF]
Pacific Journal of Mathematics, 1985 Suppose \(P=\prod_{I}G_ i\) is a direct product of slender R-modules. If \(| I|\) is non-measurable and A is a direct summand of P, then \(A=\prod_{J}A_ j\) where each \(A_ j\) is isomorphic to a direct summand of a countable direct product of \(G_ i's\).
openaire +2 more sources
Atomic Size Misfit for Electrocatalytic Small Molecule Activation
Advanced Functional Materials, EarlyView.This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong +3 more
wiley +1 more source
Impact of Imperfect Angle Estimation on Spatial and Directional Modulation
IEEE Access, 2020 In this paper, we investigate the impact of imperfect angle estimation (IAE) on spatial and directional modulation (SDM) systems, assuming that the signal experiences line of sight (LoS) propagation.
Hongyan Zhang +3 more
doaj +1 more source