Results 71 to 80 of about 1,881 (201)
RAYLEIGH FADING - SHADOWING OF OUTDOOR CHANNELS ANALYSIS BASED ON SNR-PDF MODEL
Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ, 2019 The outdoor transmission channels condition in multiple wireless signals systems changes continuously due to signals transfer path characteristics. The path loss, multiple reflected rays Rayleigh fading and shadowing presents an important factor that ...
Ashwaq Q. Hameed
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Zeitschrift für anorganische und allgemeine Chemie, EarlyView.The crystal structures of the high‐temperature and low‐temperature phases of silver pyrophosphate are reported. The structural results are complemented by thermal analysis, vibrational and 31P‐MAS‐NMR spectroscopy studies, and density functional theory calculations.
Matthias Weil +8 more
wiley +1 more source
Entropy, 2017 In this overview paper, we introduce an application of stochastic orders in wireless communications. In particular, we show how to use stochastic orders to investigate the ergodic capacity results for fast fading Gaussian memoryless multiuser channels ...
Pin-Hsun Lin, Eduard A. Jorswieck
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The Origins of Ploem's Filter Cube: A Pandora's Box
Journal of Microscopy, EarlyView.Abstract Ploem's filter cube, central to modern epifluorescence microscopy, integrates three matched optical components: an excitation filter, an emission filter, and a dichroic mirror. Together, these elements enable the separation of excitation and emission light paths, producing high‐contrast fluorescence images.
Jack Gordon +3 more
wiley +1 more source
Improved model for multiple uncorrelated Rayleigh fading channels
Tongxin xuebao, 2007 An improved model for multiple uncorrelated Rayleigh channels was proposed.Compared with other models,this new model satisfied not only the stochastic characters of Rayleigh channel but also the uncorrelation between different fading channels.The ...
WANG Xin, FENG Guang-zeng
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A GEO‐LEO Imager Data Set for Characterizing Rapid Changes of Global Aerosol Properties
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.Abstract Aerosols, the ubiquitous small particulates in our atmosphere, have climate, air quality, and/or other impacts far from their original sources. The Dark Target Algorithm (DTA), originally developed for retrieving aerosol properties from satellite imagers in Low‐Earth Orbit (LEO), has been ported to imagers in Geostationary (GEO) orbit. Using a
R. C. Levy +12 more
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Nanophotonics, Volume 15, Issue 15, 13 August 2026.Directional silver coating breaks lateral mirror symmetry in a reciprocal silica nanograting. Opposite in‐plane illumination directions redistribute optical power differently among diffraction and absorption channels, producing strong polarization‐preserving lateral transmission contrast.
Ye Ming Qing +4 more
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Advanced Engineering Materials, Volume 28, Issue 15, 5 August 2026.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
Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration
Advanced Materials, Volume 38, Issue 43, 3 August 2026.A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang +7 more
wiley +1 more source
Al-Khawarizmi Engineering Journal, 2017 In order to select the optimal tracking of fast time variation of multipath fast time variation Rayleigh fading channel, this paper focuses on the recursive least-squares (RLS) and Extended recursive least-squares (E-RLS) algorithms and reaches the ...
Ali Salah Mahdi
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