Results 11 to 20 of about 941,344 (164)

Novel achromatic single reflection quarter-wave retarder: design and measurement [PDF]

open access: yes, 2014
In this work, we present an achromatic quarter-wave retarder whose design is based upon the reflection properties of an isotropic-anisotropic interface.
Caré, D.   +4 more
core   +1 more source

Pre-switching bifurcation of a slender jet [PDF]

open access: yes, 2016
In this work, we study the near-field of the jet flow exiting a slot-model with aspect ratio 7.5:1. The core of the slender jet separates into two streams which subsequently merge recomposing a single core jet.
Artana, Guillermo Osvaldo   +2 more
core   +1 more source

Colon adenocarcinoma diagnosis in human samples by multicontrast nonlinear optical microscopy of hematoxylin and eosin stained histological sections [PDF]

open access: yes, 2014
Combined multimodal nonlinear optical (NLO) microscopies were used to detect and quantify morphological changes associated with stroma and epithelial transformation in colon cancer.
Adur, Javier Fernando   +7 more
core   +1 more source

Family-specific degenerate primer design: a tool to design consensus degenerated oligonucleotides [PDF]

open access: yes, 2013
Designing degenerate PCR primers for templates of unknown nucleotide sequence may be a very difficult task. In this paper, we present a new method to design degenerate primers, implemented in family-specific degenerate primer design (FAS-DPD) computer ...
Borio, Cristina Silvia   +5 more
core   +3 more sources

Effect of alloying elements in melt spun Mg-alloys for hydrogen storage [PDF]

open access: yes, 2016
In this paper we report the effect of alloying elements on hydrogen storage properties of melt-spun Mg-based alloys. The base alloys Mg90Si10, Mg90Cu10, Mg65Cu35 (at%) were studied.
Audebert, Fernando Enrique   +7 more
core   +1 more source

On complementable operators in the sense of T. Ando [PDF]

open access: yes, 2020
Consider an operator A :H→K between Hilbert spaces and closed subspaces S ⊂ H and T ⊂ K. If there exist projections E on H and F on K such that R(E) =S, R(F) =T and AE=F∗A then A is called (S, T)-complementable.
Arias, Maria Laura   +2 more
core   +1 more source

Acute toxicity of arsenic and oxidative stress responses in the embryonic development of the common South American toad Rhinella arenarum [PDF]

open access: yes, 2015
Arsenic (As), a natural element of ecological relevance, is found in natural water sources throughout Argentina in concentrations between 0.01mg/L and 15mg/L. The autochthonous toad Rhinella arenarum was selected to study the acute toxicity of As and the
Adams   +37 more
core   +1 more source

The first report of South American edrioasteroids and the paleoecology and ontogeny of rhenopyrgid echinoderms [PDF]

open access: yes, 2013
A new species of rhenopyrgid edrioasteroid Rhenopyrgus piojoensis sp. nov. is described form the Silurian (Lower Lud− low) Los Espejos Formation in the Precordillera of Argentina.
Heredia, Susana Emma   +3 more
core   +1 more source

La ingeniería del conocimiento y la sabiduría

open access: yesINGnosis Revista de Investigación Científica, 2015
Desde inicios de nuestra era el hombre ha utilizado el conocimiento “GNOSIS” para poder adaptarse a situaciones, cambiando principios básicos, resolviendo problemas, adecuándolo a su existencia y así vivir cada vez mejor. La gnosis aparece como una necesidad de adecuarse física, psíquica, social y espiritualmente, se manifiesta como un ...
openaire   +1 more source

Reduction of total harmonic distortion in power inverters [PDF]

open access: yes, 2005
The output voltage of PWM power inverters shows harmonic distortion due to several causes; the main ones are the modulation algorithm, nonlinearities in the output filter, dead times, voltage drops across the switches and modulation of the dc bus voltage.
Aymonino, Oscar Andres   +3 more
core  

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