Results 61 to 70 of about 2,697,867 (333)
Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source
Micromachines, 2022 Resonant Bessel-beam launchers are low-cost, planar, miniaturized devices capable of focusing electromagnetic radiation in a very efficient way in various frequency ranges, with recent increasing interest for microwave and millimeter-wave applications (i.
Edoardo Negri +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
Representation of the continuous spectrum excited by a dipole in a multilayer configuration through weighted cylindrical leaky waves [PDF]
, 2002 In this work, an original closed-form approximate evaluation is performed for the continuous-spectrum field excited by a dipole source in substrate-superstrate configurations, often employed in planar antennas and integrated passive components.
A. Galli +9 more
core +3 more sources
IEEE Photonics Journal, 2013 By solving analytically derived characteristic equations, leaky surface waves are found to exist at an interface between a metal material and a uniaxially anisotropic dielectric material with its optic axis falling in the plane of the interface. Both the
Hsuan-Hao Liu, Hung-chun Chang
doaj +1 more source
Advanced Functional Materials, EarlyView.Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco +8 more
wiley +1 more source
Radiation and propagation of cylindrical leaky waves on a planar dielectric multi-layer structure [PDF]
, 1988 Radiation formulas for cylindrical leaky waves on a planar surface are derived. This is an extension of previous work by Tamir and Oliner for one-dimensional leaky waves derived in 1963. These formulas allow for the calculation of radiation patterns from
Ip, Antonio
core
Leaky wave characterisation using spectral methods [PDF]
, 2022 Leaky waves are an important class of waves, particularly for guiding waves along structures embedded within another medium; a mismatch in wavespeeds often leads to leakage of energy from the waveguide, or interface, into the medium, which consequently ...
Craster, Richard V. +7 more
core +2 more sources
Gap Waveguide Leaky-Wave Antenna
IEEE Transactions on Antennas and Propagation, 2016 A novel leaky wave antenna, realized using gap waveguide concept, is here proposed. Both, the feeding structure and the antenna are realized in groove gap waveguide technology, thus simplifying the whole structure. A complete design procedure, starting from a given groove waveguide to the final radiation mechanism, is described in this paper.
Vukomanovic, Mladen +4 more
openaire +4 more sources
Advanced Functional Materials, EarlyView.Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand +13 more
wiley +1 more source