Buscar
Mostrando ítems 51-60 de 404
Propiedades de transporte de hormigones con adiciones mineralesTransport properties of concrete with mineral admixtur
(Comisión de Investigaciones Científicas. Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica, 2015)
El objetivo del presente trabajo es determinar el grado de influencia que la escoria granulada de alto horno, el filler calizo y la puzolana natural tienen en ciertas propiedades de transporte del hormigón. Las adiciones ...
Intracellular motor driven transport of rodlike smooth organelles along microtubules
(American Physical Society, 2020-06-19)
Molecular motors are fascinating proteins that use the energy of ATP hydrolysis to drive vesicles and organelles along cytoskeleton filaments toward their final destination within the cell. Several copies of these proteins ...
Asymmetries in kinesin-2 and cytoplasmic dynein contributions to melanosome transport
(Elsevier Science, 2015-07)
The mechanisms involved in bidirectional transport along microtubules remain largely unknown. We explored the collective action of kinesin-2 and dynein motors during transport of melanosomes in Xenopus laevis melanophores. ...
PH-responsive ion transport in polyelectrolyte multilayers of poly(diallyldimethylammonium chloride) (PDADMAC) and poly(4-styrenesulfonic acid-co-maleic acid) (PSS-MA) bearing strong- and weak anionic groups
(Royal Society of Chemistry, 2015-10)
The layer-by-layer construction of interfacial architectures displaying stimuli-responsive control of mass transport is attracting increasing interest in materials science. In this work, we describe the creation of interfacial ...
Lennard-Jones viscosities in wide ranges of temperature and density: Fast calculations using a steady-state periodic perturbation method
(Springer/Plenum Publishers, 2004-11)
A method for fast calculation of viscosity from molecular dynamics simulation is revisited. The method consists of using a steady-state periodic perturbation. A methodology to choose the amplitude of the external perturbation, ...
Encapsulation of a free-solvent extract of lycopene in alginate-Ca(II) beads containing sugars and biopolymers
(Springer, 2017-07)
Background: The purpose of the present study was to enhance the stability toward isomerization and control the release of an encapsulated free-solvent extract of lycopene, obtained from a nonconventional natural source, ...
Extraction of the minority carrier transport properties of solar cells using the Hovel model and genetic algorithms
(IOP Publishing, 2020-02)
In this paper, a quick and accurate method for extraction of the minority carrier transport properties of p-n or n-p junction solar cells, such as diffusion lengths and surface recombination velocities, is presented. The ...
From direct to inverse GMR: Introduction of Cr in Fe/Cu superlattices
(Elsevier Science, 2001-01)
It is well known that layered systems can present giant magnetoresistance (GMR). Particularly, the multilayers FeN/Cu8/Fe M/Cr/ FeM/Cu8 show inverse GMR. That is, the electrical conductivity decreases with the applied ...
Mechanism of long-term capillary water uptake in cementitious materials
(Elsevier, 2020-02)
Capillary imbibition or water uptake tests are practical and they satisfactorily describe the performance of cementitious materials. Most of these tests are performed for a short period (<1 week), however, additional water ...
Low temperature thermopower and magnetoresistance of Sc-rich CeSc1-xTixGe
(Elsevier Science, 2018-05)
In CeSc1-xTixGe, Ti-alloying reduces the record-high antiferromagnetic (AFM) ordering temperature found in CeScGe at TN=46K and induces ferromagnetism for x≥0.5. In this work we focus on the AFM side, i.e. Sc-rich samples, ...