LAUSR

Modal analysis of historical masonry structures: Linear perturbation and software benchmarking

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0 Published in 2018 at "Construction and Building Materials"

DOI: 10.1016/j.conbuildmat.2018.09.034

Abstract: Abstract The mechanical behavior of masonry materials has a common feature: a nonlinear behavior with high compressive strength and very low tensile strength. As a consequence, old masonry buildings generally present cracks due to permanent… read more here.

Keywords: modal analysis; linear perturbation; masonry; masonry structures ... See more keywords

Flows for the masses: A multi-fluid non-linear perturbation theory for massive neutrinos

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2 Published in 2022 at "Journal of Cosmology and Astroparticle Physics"

DOI: 10.1088/1475-7516/2023/05/046

Abstract: Velocity dispersion of the massive neutrinos presents a daunting challenge for non-linear cosmological perturbation theory. We consider the neutrino population as a collection of non-linear fluids, each with uniform initial momentum, through an extension of… read more here.

Keywords: perturbation theory; non linear; linear perturbation; massive neutrinos ... See more keywords

Linear perturbation model for simulating imaging through weak turbulence

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0 Published in 2020 at "Optical Engineering"

DOI: 10.1117/1.oe.59.3.034105

Abstract: Abstract. A first-order linear perturbation model for simulating imaging through weak turbulence is introduced and developed. It is based on a first-order approximation of the Born expansion of paraxial propagation. The model generates a random… read more here.

Keywords: perturbation model; simulating imaging; model; model simulating ... See more keywords