Data assimilation for volcanic ash plumes using a satellite observational operator: a case study on the 2010 Eyjafjallajökull volcanic eruption [PDF]
Atmospheric Chemistry and Physics, 2017 Using data assimilation (DA) to improve model forecast accuracy is a powerful approach that requires available observations. Infrared satellite measurements of volcanic ash mass loadings are often used as input observations for the assimilation scheme ...
G. Fu +5 more
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Accounting for Azimuthal Coupling in Long-Range Ocean Acoustics Calculations
IEEE Access, 2023 The parabolic equation method is an accurate and efficient approach for solving nonseparable problems in ocean acoustics in which there are horizontal variations in the environmental parameters.
John Y. Yoritomo +3 more
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Estimation de l'enveloppe et de la fréquence locales par les opérateurs de Teager-Kaiser en interférométrie en lumière blanche. [PDF]
, 2014 In this work, a new method for surface extraction in white light scanning interferometry (WLSI) is introduced. The proposed extraction scheme is based on the Teager-Kaiser energy operator and its extended versions.
BOUDRAA, Abdel-Ouahab +2 more
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A note on operators from Kothe function spaces to $c_0(\Gamma)$
Karpatsʹkì Matematičnì Publìkacìï, 2013 It is well known that every operator from $E = L_p$, $1 \leq p <\infty$ to $c_0$ is narrow. We show that this result can be extended to a more general class of Kothe function spaces $E$.
I. V. Krasikova, M. M. Popov
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Mathematics in Engineering, 2021 This paper addresses saddle-shaped solutions to the semilinear equation $L_K u = f(u)$ in $\mathbb{R}^{2m}$, where $L_K$ is a linear elliptic integro-differential operator with a radially symmetric kernel $K$, and $f$ is of Allen-Cahn type. Saddle-shaped
Juan-Carlos Felipe-Navarro +1 more
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Narrowing Operators on Template Abstract Domains [PDF]
, 2015 In the theory of abstract interpretation, a descending phase may be used to improve the precision of the analysis after a post-fixpoint has been reached. Termination is often guaranteed by using narrowing operators. This is especially true on numerical domains, since they are generally endowed with infinite descending chains which may lead to a non ...
AMATO, Gianluca +3 more
openaire +2 more sources
Negation, 'presupposition' and the semantics/pragmatics distinction [PDF]
, 1998 A cognitive pragmatic approach is taken to some long-standing problem cases of negation, the so-called presupposition denial cases. It is argued that a full account of the processes and levels of representation involved in their interpretation typically ...
Carston, R
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Boolean independent sequences and Bourgain-Rosenthal’s theorem (in Ukrainian) [PDF]
Математичні Студії, 2012 A property of boolean independent sequences of pairs of sets is obtained. This completes the proof of Bourgain-Rosenthal's theorem on narrow operators.
V. V. Mykhaylyuk
doaj
Identifying Equipment Factors Associated with Snowplow Operator Fatigue
Safety, 2019 A recent body of research in fatigue management indicates that other factors, including in-cab and external equipment, contribute to operator fatigue. The goal of this project was to identify winter road maintenance equipment (in-cab and external) that ...
Matthew C. Camden +3 more
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SIGNIFICANT WAVE HEIGHT DETERMINED FROM SEQUENCE OF X-BAND RADAR IMAGES USING TEAGER-HUANG TRANSFORM [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 This work introduces a nonlinear and data-dependant method for extracting the significant wave height from a sequence of X-band radar images, which is based on the Teager-Huang Transform (THH).
M. R. Mortazavi, C. J. Huang, L. C. Wu
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