Results 31 to 40 of about 601,437 (304)

Mixed-mode impedance and reflection coefficient of two-port devices [PDF]

open access: yes, 2012
From the point of view of mixed-mode scattering parameters, Smm, a two-port device can be excited using different driving conditions. Each condition leads to a particular set of input reflection and input impedance coefficient definitions that should be ...
Carrasco, T.   +5 more
core   +1 more source

The origin of fine scale acoustic stratigraphy in deep-sea carbonates [PDF]

open access: yes, 1979
In this paper we investigate the origin and geologic significance of the closely spaced high-frequency subbottom acoustic reflectors characteristic of pelagic carbonates.
Mayer, Larry A.
core   +2 more sources

The Correction Method of Water and Fresnel Reflection Coefficient for Soil Moisture Retrieved by CYGNSS

open access: yesRemote Sensing, 2023
Spaceborne GNSS-R technology is a new remote sensing method for soil moisture monitoring. Focusing on the significant influence of water on the surface reflectivity of CYGNSS, this paper improved the removal method of water influence according to the ...
Qi Wang   +5 more
doaj   +1 more source

Real‐World Performance of CSF Kappa Free Light Chains in the 2024 McDonald Criteria

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Kappa free light chains (KFLCs) in the cerebrospinal fluid (CSF) have a similar performance to CSF‐restricted oligoclonal bands (OCB) for multiple sclerosis (MS) diagnosis. To help with implementation, we set out to resolve several remaining uncertainties: (1) performance in a real‐world cohort and the 2024 McDonald criteria; (2 ...
Maya M. Leibowitz   +11 more
wiley   +1 more source

Reflection coefficient for superresonant scattering

open access: yes, 2003
We investigate superresonant scattering of acoustic disturbances from a rotating acoustic black hole in the low frequency range. We derive an expression for the reflection coefficient, exhibiting its frequency dependence in this regime.Comment: 7 ...
Basak S   +9 more
core   +1 more source

Interaction of Electromagnetic H-wave with the thin Metal Film is Located on the Dielectric Substrate

open access: yesФізика і хімія твердого тіла, 2016
Interaction of electromagnetic H-wave with thin metal film is located between two dielectric environments ε1, ε2 in the case of different incident angles of H-wave θ and in the case of different reflection coefficients q1 и q2 is calculated in this ...
А. І. Utkin, А. А. Yushkanov
doaj   +1 more source

Throughput Maximization for UAV-Aided Backscatter Communication Networks [PDF]

open access: yes, 2019
This paper investigates unmanned aerial vehicle (UAV)-aided backscatter communication (BackCom) networks, where the UAV is leveraged to help the backscatter device (BD) forward signals to the receiver.
Hua, M   +4 more
core   +2 more sources

Stability of the inverse resonance problem for Jacobi operators

open access: yes, 2012
When the coefficients of a Jacobi operator are finitely supported perturbations of the 1 and 0 sequences, respectively, the left reflection coefficient is a rational function whose poles inside, respectively outside, the unit disk correspond to ...
Bledsoe, Matthew
core   +1 more source

Spinal Cord Infarction Versus Idiopathic Transverse Myelitis: Clinical, Radiological, and Functional Insights From a Retrospective Cohort Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Spinal cord infarction (SCI) is a rare but devastating myelopathy, characterized by a high disability rate and an unfavorable prognosis. It has often been underdiagnosed and misdiagnosed as idiopathic transverse myelitis (ITM). This study aimed to describe the clinical features, radiological biomarkers, treatments, and functional ...
Zeqiang Ji   +13 more
wiley   +1 more source

Modelling of hydrogen atoms reflection from an annealed tungsten fuzzy surfaces

open access: yesNuclear Materials and Energy, 2021
Modelling of the hydrogen reflection on tungsten smooth and fuzz surfaces under the low-energy hydrogen plasma bombardment has been performed with the three-dimensional kinetic Monte Carlo code SURO-FUZZ.
D.H. Liu   +7 more
doaj   +1 more source

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