Results 21 to 30 of about 10,510,029 (299)

Nueva técnica de monitoreo sobre la dispersión en las señales de radio-sobre-fibra en la banda W usando clustering en histogramas asíncronos

open access: yesIngeniería e Investigación, 2014
Los sistemas de Radio sobre Fibra (RoF), se proponen como una solución prometedora para transmitir señales de radiofrecuencia a altas tasas de transmisión y sobre largas distancias. Algunos estudios proponen el uso de frecuencias portadoras en la banda W
Jhon James Granada Torres   +2 more
doaj   +1 more source

A New Three-Parameter Discrete Distribution With Associated INAR(1) Process and Applications

open access: yesIEEE Access, 2020
The aim of this article is to propose a new three-parameter discrete Lindley distribution. A wide range of its structural properties are investigated.
M. S. Eliwa   +3 more
doaj   +1 more source

Handling over-dispersion of performance indicators [PDF]

open access: yesQuality and Safety in Health Care, 2005
A problem can arise when a performance indicator shows substantially more variability than would be expected by chance alone, since ignoring such "over-dispersion" could lead to a large number of institutions being inappropriately classified as "abnormal".
openaire   +2 more sources

Dispersion management in nonlinear photonic crystal fibres with nanostructured core [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2011
The subwavelength structure of the core of a photonic crystal fibre can modify its dispersion characteristic and significantly shift the zero dispersion wavelength.
Buczynski Ryszard   +8 more
doaj   +1 more source

Wage dispersion over the business cycle [PDF]

open access: yesEconomics Letters, 2019
In this paper, I provide robust evidence that fluctuations in wage dispersion are independent of the business cycle, while residual wage dispersion, i.e. dispersion of wages within narrowly defined demographic and skill groups of workers, increases during booms and lessens during recessions.
openaire   +3 more sources

TTCM-OFDM over dispersive fading channels [PDF]

open access: yesVTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026), 2002
Orthogonal frequency division multiplexing (OFDM) is proposed as a convenient digital modulation scheme to transmit data encoded by means of turbo trellis coded modulation (TTCM). The resulting transmission system is described and the advantages of using OFDM to transmit TTCM encoded data are highlighted.
PIAZZO, Lorenzo, L. Hanzo
openaire   +3 more sources

CO2 dispersion modelling over Paris region within the CO2-MEGAPARIS project [PDF]

open access: yesAtmospheric Chemistry and Physics, 2013
Accurate simulation of the spatial and temporal variability of tracer mixing ratios over urban areas is a challenging and interesting task needed to be performed in order to utilise CO2 measurements in an atmospheric inverse framework and to better ...
C. Lac   +9 more
doaj   +1 more source

Dispersion of cognitive performance test scores on the MATRICS Consensus Cognitive Battery: A different perspective

open access: yesSchizophrenia Research: Cognition, 2022
Objective: Persons with schizophrenia exhibit greater neurocognitive test score dispersion. Here, we seek to characterize dispersion on the Neurocognitive Composite subtests of the Measurement of Treatment Research to Improve Cognition in Schizophrena ...
David J. Williamson   +7 more
doaj   +1 more source

Accounting for Productivity Dispersion over the Business Cycle [PDF]

open access: yesFinance and Economics Discussion Series, 2016
This paper presents accounting decompositions of changes in aggregate labor and capital productivity. Our simplest decomposition breaks changes in an aggregate productivity ratio into two components: A mean component, which captures common changes to firm factor productivity ratios, and a dispersion component, which captures changes in the variance and
Robert J. Kurtzman, David Zeke
openaire   +1 more source

Statistical detection and modeling of the over-dispersion of winter storm occurrence [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2015
In this communication, I improve the detection and modeling of the over-dispersion of winter storm occurrence. For this purpose, the generalized Poisson distribution and the Bayesian information criterion are introduced; the latter is used for ...
M. Raschke
doaj   +1 more source

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