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Propiedades mecánicas y calóricas de cintas elaboradas por solidificación rápida de aleaciones ferromagnéticas con memoria de forma base Níquel
(2017-06-30)
Se presentan estudios de efecto magnetocalórico (MCE) y elastocalórico (eCE) en cintas con memoria de forma Ni50-xMn40Sn10Fex. Se encontró que la adición de Fe genera un incremento de la red cristalina y de la interacción ...
Aspects and Some Results on Passivity and Positivity of Dynamic Systems
(IOP Publishing, 2017)
This paper is devoted to discuss certain aspects of passivity results in dynamic systems and the characterization of the regenerative systems counterparts. In particular, the various concepts of passivity as standard ...
On Some Relations between Accretive, Positive, and Pseudocontractive Operators and Passivity Results in Hilbert Spaces and Nonlinear Dynamic Systems
(Hindawi, 2017)
This paper investigates some parallel relations between the operators (I-G) and G in Hilbert spaces in such a way that the pseudocontractivity, asymptotic pseudocontractivity, and asymptotic pseudocontractivity in the ...
Water-Based Suspensions of Iron Oxide Nanoparticles with Electrostatic or Steric Stabilization by Chitosan: Fabrication, Characterization and Biocompatibility
(MDPI, 2017-11-13)
Present day biomedical applications, including magnetic biosensing, demand better understanding of the interactions between living systems and magnetic nanoparticles (MNPs). In this work spherical MNPs of maghemite were ...
Development of new high anisotropy phases for permanent magnet applications
(2018-11-26)
The development of last generation permanent magnets is strongly linked to the use of critical and / or strategic raw materials such as rare earths (RE), and especially heavy rare earths. In the case of Nd2Fe14B, magnets, ...
Removal of Tetracycline Pollutants by Adsorption and Magnetic Separation Using Reduced Graphene Oxide Decorated with Alpha-Fe₂O₃ Nanoparticles
(MDPI, 2019-02-26)
Nanocomposites of reduced graphene oxide (RGO) with ferromagnetic alpha-Fe₂O₃ nanoparticles have been prepared in-situ by thermal treatment. The structure and morphology of the hybrid material were studied by X-ray ...
PPF-Dependent Fixed Point Results for New Multi-Valued Generalized F-Contraction in the Razumikhin Class with an Application
(MDPI, 2019-01-07)
In this paper, a new multi-valued generalized F-contraction mapping is given. Using it, the existence of PPF-dependent fixed point for such mappings in the Razumikhin class is obtained. Moreover, an application for nonlinear ...
Structural and Magnetic Properties of Ni0.8Fe0.2/Ti Nanoscale Multilayers
(MDPI, 2018-09-30)
The influence of the thickness of the Ni0.8Fe0.2 (Permalloy, Py) layers on the structural and magnetic properties of magnetron sputtered Py/Ti multilayers was studied. The thickness of the Py layers was varied in the ...
Development of new Ni-Mn-Ga based high temperature shape memory alloys.
(2019-06-14)
Desarrollo de aleaciones con memoria de forma, tanto como convencional, SMAs, como magnética, FSMAs, para aplicaciones a alta temperatura. Estudio de las propiedades magnéticas, estructurales y mecánicas de las aleaciones ...
Ferrogels Ultrasonography for Biomedical Applications
(MDPI, 2019-09-02)
Ferrogels (FG) are magnetic composites that are widely used in the area of biomedical engineering and biosensing. In this work, ferrogels with different concentrations of magnetic nanoparticles (MNPs) were synthesized by ...