Results 21 to 30 of about 44,447 (123)

ADSORPTION ESSAYS OF PALLADIUM IN MODIFIED SILICA GEL WITH THIOURONIUM GROUPS: EXPERIMENTAL AND THEORICAL STUDIES [PDF]

open access: yes, 2011
Indexación: Web of Science; ScieloThe silylant 3-cloropropyltriethoxysilyl was anchored over silica gel in anhydrous conditions in order to react with thiourea to obtain modified silica gel with thiouronium. The aim to obtain an inorganic support that is
ARRATIA-PEREZ, RAMIRO   +7 more
core   +1 more source

A 2MASS Analysis of the Stability of Southern Bok Globules [PDF]

open access: yes, 2009
We used near-infrared 2MASS data to construct visual extinction maps of a sample of Southern Bok globules utilizing the NICE method. We derived radial extinction profiles of dense cores identified in the globules and analyzed their stability against ...
Alves   +41 more
core   +1 more source

Fourier-Mukai and Nahm transforms for holomorphic triples on elliptic curves [PDF]

open access: yes, 2004
We define a Fourier-Mukai transform for a triple consisting of two holomorphic vector bundles over an elliptic curve and a homomorphism between them. We prove that in some cases the transform preserves the natural stability condition for a triple.
Atiyah   +28 more
core   +4 more sources

Trihyperkahler reduction and instanton bundles on CP^3

open access: yes, 2013
A trisymplectic structure on a complex 2n-manifold is a triple of holomorphic symplectic forms such that any linear combination of these forms has constant rank 2n, n or 0, and degenerate forms in $\Omega$ belong to a non-degenerate quadric hypersurface.
Feix   +7 more
core   +1 more source

Nahm Transform For Periodic Monopoles And N=2 Super Yang-Mills Theory [PDF]

open access: yes, 2000
We study Bogomolny equations on $R^2\times S^1$. Although they do not admit nontrivial finite-energy solutions, we show that there are interesting infinite-energy solutions with Higgs field growing logarithmically at infinity.
Cherkis, Sergey A., Kapustin, Anton
core   +2 more sources

Transfer function-noise modeling and spatial interpolation to evaluate the risk of extreme (shallow) water-table levels in the Brazilian Cerrados [PDF]

open access: yes
Water regimes in the Brazilian Cerrados are sensitive to climatological disturbances and human intervention. The risk that critical water-table levels are exceeded over long periods of time can be estimated by applying stochastic methods in modeling the ...
Asmuth, J.R., von   +4 more
core   +2 more sources

Stable Higgs bundles over positive principal elliptic fibrations

open access: yes, 2018
Let $M$ be a compact complex manifold of dimension at least three and $\Pi : M\rightarrow X$ a positive principal elliptic fibration, where $X$ is a compact K\"ahler orbifold. Fix a preferred Hermitian metric on $M$.
Biswas, Indranil   +2 more
core   +1 more source

Impacts of Low‐Level Jets on Moisture Transport to the Pantanal, Brazil

open access: yesInternational Journal of Climatology, EarlyView.
The moisture transports from the tropics to the subtropics by the low‐level jets (LLJs) east of the Andes crossing the Pantanal region. Four LLJs, east of the Andes, were identified and selected with correspondent Lagrangian moisture transport. The LLJ moisture source regions contribute to Pantanal (~63.5%) and precipitation increased (~30%) during LLJ
Nilson Oliveira da Silva   +4 more
wiley   +1 more source

On the degree of Polar Transformations -- An approach through Logarithmic Foliations

open access: yes, 2007
We investigate the degree of the polar transformations associated to a certain class of multi-valued homogeneous functions. In particular we prove that the degree of the pre-image of generic linear spaces by a polar transformation associated to a ...
Fassarella, Thiago   +1 more
core   +1 more source

Deep Learning‐Based Skin Lesion Classification

open access: yesJournal of Ultrasound in Medicine, EarlyView.
High‐frequency ultrasound (HFUS) is valuable for assessing skin lesions, supporting diagnosis, treatment monitoring, and surgical planning. This study evaluates deep learning models for binary classification of HFUS images acquired in B‐mode and Doppler mode.
Isabela Rocha Veiga da Silva   +5 more
wiley   +1 more source

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