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Modeling and reliability analysis of systems subject to multiple sources of degradation based on Lévy processes
In this paper we present a framework to model the effect of multiple sources of degradation on deteriorating systems, and to find easy-to-evaluate expressions for important reliability quantities. By considering the system ...
Synthesis and characterization of the Fe3O4@SiO2 nanoparticlesSíntese e caracterização de nanopartículas de Fe3O4@SiO2
(2019-01-01)
In this work the synthesis and characterization of the magnetic nanoparticles of magnetite (Fe3O4) from the methodology via co-precipitation and its subsequent functionalization by silica (SiO2), carried out via sol-gel ...
Analysis Of Patterns Of Pedotransfer Function Estimates: An Approach Based On Classification Trees
(SOIL SCI SOC AMERMADISON, 2015)
Sexual differences in locomotor performance in Tropidurus catalanensis lizards (Squamata: Tropiduridae) – body shape, size and limb musculature explain variation between males and females
(Wiley, 2015-12)
Sexual dimorphism (SD) is the evolutionary outcome of selection acting differently on males and females. Several studies describe sexual differences in body size, although other morphological traits might be allometric ...
Densest arrangement of frictionless polydisperse sphere packings with a power‑law grain size distributionDisposición más densa de empaques de esferas polidispersas sin fricción con una distribución de tamaño de grano de ley de potencia
(Granular Matter,, 2020)
In this work we use DEM simulations to fnd the densest packing of frictionless spheres subject to mechanical compression by changing systematically the grain size distribution (GSD). This is done by modeling the GSD as a ...
Selection and shell relationship in Isocheles-sawayai forest and Saint-laurent, 1967 (crustacea, anomura, diogenidae)
(Inst Tecnologia Parana, 1993-01-01)
A populational sample of Isocheles sawayai Forest & Saint Laurent, 1967 was analysed in order to detect the validity of the shell aperture size as a parameter in the gastropod shell selection. The gastropods genus occupied ...
Selection and shell relationship in Isocheles-sawayai forest and Saint-laurent, 1967 (crustacea, anomura, diogenidae)
(Inst Tecnologia Parana, 1993-01-01)
A populational sample of Isocheles sawayai Forest & Saint Laurent, 1967 was analysed in order to detect the validity of the shell aperture size as a parameter in the gastropod shell selection. The gastropods genus occupied ...
Evolution of the third eye: a phylogenetic comparative study of parietal-eye size as an ecophysiological adaptation in Liolaemus lizards
(WILEY-BLACKWELL, 2010-12)
The parietal, or third, eye is a photosensory organ situated in the middle of the skull of many lizards. Despite many
hypotheses, its exact ecological functions are still unclear. Studies have compared the presence and ...
Padrões geográficos da diversidade taxonômica e funcional do fitoplâncton em ecossistemas aquáticos do litoral ao semiárido do Rio Grande do Norte
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ECOLOGIA, 2017-06-26)
Patterns in biodiversity are the result of multiple interacting processes at both local and regional spatial scales. Microorganisms, considered highly dispersed, have their communities expected to be predominantly structured ...