Results 11 to 20 of about 25,318,866 (226)

Time- and Frequency-Varying $K$-Factor of Non-Stationary Vehicular Channels for Safety-Relevant Scenarios [PDF]

open access: yesIEEE transactions on intelligent transportation systems (Print), 2013
Vehicular communication channels are characterized by a non-stationary time- and frequency-selective fading process due to fast changes in the environment.
Laura Bernadó   +4 more
semanticscholar   +3 more sources

Spectral Efficiency Analysis of Multi-Cell Massive MIMO Systems with Ricean Fading [PDF]

open access: yes, 2018
This paper investigates the spectral efficiency of multi-cell massive multiple-input multiple-output systems with Ricean fading that utilize the linear maximal-ratio combining detector.
Chen, Da   +4 more
core   +2 more sources

Degree Sequences and the Existence of $k$-Factors [PDF]

open access: yes, 2011
We consider sufficient conditions for a degree sequence $\pi$ to be forcibly $k$-factor graphical. We note that previous work on degrees and factors has focused primarily on finding conditions for a degree sequence to be potentially $k$-factor graphical.
Bauer, D.   +4 more
core   +2 more sources

What is the Real K Factor? [PDF]

open access: yes, 2002
The theoretical K factor, describing the difference between the leading and higher order cross sections, has no precise definition. The definition is sensitive to the order of the fit to the parton densities and the number of loops at which alpha_s is ...
Vogt, R.
core   +2 more sources

Spatial variability of soil properties and soil erodibility in the Alqueva reservoir watershed [PDF]

open access: yes, 2015
The aim of this work is to investigate how the spatial variability of soil properties and soil erodibility (K factor) were affected by the changes in land use allowed by irrigation with water from a reservoir in a semiarid area.
Andrade, R.   +4 more
core   +3 more sources

Form Factors and QCD in Spacelike and Timelike Region [PDF]

open access: yes, 2000
We analyze the basic hard exclusive processes: \pi\gamma*\gamma - transition, pion and nucleon electromagnetic form factors, and discuss the analytic continuation of QCD formulas from the spacelike q^20 of the relevant momentum transfers. We describe the
A. A. Vladimirov   +92 more
core   +3 more sources

Binding Number, $k$-Factor and Spectral Radius of Graphs

open access: yesElectronic Journal of Combinatorics
The binding number $b(G)$ of a graph $G$ is the minimum value of $|N_{G}(X)|/|X|$ taken over all non-empty  subsets $X$ of $V(G)$ such that $N_{G}(X)\neq V(G)$.
Dandan Fan, Huiqiu Lin
semanticscholar   +1 more source

Analytical Calculation of Rician K-Factor for Indoor Wireless Channel Models

open access: yesIEEE Access, 2017
The tremendous increase in wireless data rate over the past few decades can be attributed to the use of higher frequency bands and increased density of access points along with advanced signal processing in transceiver.
S. Mukherjee   +3 more
semanticscholar   +1 more source

Next-to-Next-to-Leading Order QCD Corrections in Models of TeV-Scale Gravity [PDF]

open access: yes, 2013
We compute the next-to-next-to-leading order QCD corrections to the graviton production in models of TeV-scale gravity, within the soft-virtual approximation.
de Florian, Daniel   +4 more
core   +3 more sources

Soil Erodibility under Natural Rainfall Conditions as the K Factor of the Universal Soil Loss Equation and Application of the Nomograph for a Subtropical Ultisol

open access: yes, 2018
: Erodibility represents the intrinsic susceptibility of the soil to the erosion process, represented by the K factor in the Universal Soil Loss Equation (USLE). In Brazil, there are few field experiments determined with a series larger than ten years of
E. A. Cassol   +3 more
semanticscholar   +1 more source

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