Results 31 to 40 of about 24,731 (260)
Microwave dielectric properties of BiFeO3 thin film prepared by aqueous chemical solution deposition method [PDF]
Processing and Application of Ceramics, 2009 We report high frequency dielectric properties of multiferroic BiFeO3 (BFO) thin film deposited by means of aqueous chemical solution deposition on platinized silicon substrate.
Ričardas Sobiestianskas +4 more
doaj
Dust Storm and Diffraction Modelling for 5G Spectrum Wireless Fixed Links in Arid Regions
IEEE Access, 2019 The arid climate regions, such as in Riyadh city (Saudi Arabia), are characterized by strong dust storms which can deteriorate the performance of wireless systems.
Zaid Ahmed Shamsan
doaj +1 more source
Electronic Materials, 2022 This study aims to discuss the combined theoretical and experimental results of elastic properties of tungsten trioxide films supported on Quartz (YX)/45°/10° resonator to form surface acoustic wave (SAW) devices.
Madjid Arab +4 more
doaj +1 more source
Loss of coherence in double-slit diffraction experiments [PDF]
Physical Review A, 2005 8 pages, 3 ...
Sanz, A.S., Borondo, F., Bastiaans, M.J.
openaire +3 more sources
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
Analysis of the fresnel breakdown and diffraction losses across a hilly terrain region
Discover ElectronicsA propagation loss analysis across a hilly terrain region is presented, with a focus on analyzing and modeling signal breakdown distances and signal losses in both line-of-sight (LOS) and non-line-of-sight (NLOS) scenarios.
Thaisa Jawhly
doaj +1 more source
The Effects of Conductivity of the Materials Associated with the Wedges on the Loss by Diffraction [PDF]
SSRN Electronic Journal, 2015 Radio wave signals do not travel in a straight line path. There may be some obstacles between the source and the destination which cause diffraction, reflection, scattering and attenuation. There are some types of obstacles such as knife edge, wedges and round edges.
openaire +1 more source
Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
Physical Review Special Topics. Accelerators and Beams, 2009 A phenomenon of “spectral gaps” is observed in far-infrared free-electron lasers using partial waveguiding: the laser power falls down to zero at some particular wavelengths, whatever the beam adjustments are.
R. Prazeres, F. Glotin, J.-M. Ortega
doaj +1 more source
Ultra low-loss low-efficiency diffraction gratings
Optics Express, 2005 The realization of ultra low-loss dielectric reflection gratings with diffraction efficiencies between 7% and 0.02% is presented. By placing the grating beneath the highly reflective layerstack scattering was significantly reduced. This concept allows the all-reflective coupling of high laser radiation to high finesse cavities, thereby circumventing ...
Clausnitzer, T. +8 more
openaire +3 more sources