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Focus on Metastable, Amorphous and Nanostructured Materials: Editorial note for the special issue - ISMANAM 2018
No full textInterfirm Network Analysis in Marginal Tourist Destinations: The Mediator Company in Business Relationships
Full text linkThe literature on tourist destinations and the use of empirical approaches evidence the need to adopt this model to increase tourism economies. In model application, the enterprises, and local stakeholders, sometimes represent limitations or opportunities. This article opens the view to tourist destination networks, described as relational structures that can influence and determine the destination-building process. The Network Analysis methodology offers a better understanding of inter-firm relational dynamics when applied in a small context, and in this case, the application was undertaken on the island of Sicily, in Menfi town and its hinterland. Findings show the presence of a company that assumes a central role in the network, maintaining a solid web of relationships between others. In this way, a mediator company is essential in remote tourist destinations. Policymakers need to facilitate the development of tourism companies, thereby increasing the relationality and business network ties among them
The role of chemical and microstructural inhomogeneities on interface magnetism
No full textThe study of interfacing effects arising when different magnetic phases are in close contact has led to the discovery of novel physical properties and the development of innovative technological applications of nanostructured magnetic materials. Chemical and microstructural inhomogeneities at the interfacial region, driven by interdiffusion processes, chemical reactions and interface roughness may significantly affect the final properties of a material and, if suitably controlled, may represent an additional tool to finely tune the overall physical properties. The activity at the Nanostructured Magnetic Materials Laboratory (nM2-Lab) at CNR-ISM of Italy is aimed at designing and investigating nanoscale-engineered magnetic materials, where the overall magnetic properties are dominated by the interface exchange coupling. In this review, some examples of recent studies where the chemical and microstructural properties are critical in determining the overall magnetic properties in core/shell nanoparticles, nanocomposites and multilayer heterostructures are presented
Particle size, spin wave and surface effects on magnetic properties of MgFe2O4 nanoparticles
No full textStudio tramite SPME-GC/MS sull'influenza della tecnologia di vinificazione e di affinamento sulla frazione volatile di vini rossi siciliani della cultivar Perricone.
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Magnetic properties of ε iron(III) oxide nanorod arrays functionalized with gold and copper(II) oxide
No full textTime and temperature dependent magnetic viscosity experiments on Sr/Co nanoferrite particles
No full textMagnetic viscosity experiments have been performed in order to investigate the magnetization reversal in Sr nanoferrite particles (nanoscale SrFe12O19) and interacting Sr/Co nanoferrite particles (SrFe12O19-CoFe2O4 nanocomposites). The magnetic viscosity S = d M ( t ) / d l n ( t ) , where M ( t ) is the magnetization as a function of time, has been collected. For Sr nanoferrite S shows a maximum close to the coercive field, reflecting the relation between S and the energy barrier distribution. We evidence that magnetic viscosity experiments on Sr nanoferrite and interacting Sr/Co nanoferrite particles provide reliable qualitative results for the different magnetic field sweep rate and saturating field H s a t considered. In addition, the activation volumes extracted from the magnetic viscosity experiments performed at different temperatures on Sr nanoferrite are quantitatively correlated to anisotropy changes
EFFETTI DELLA SALINITÀ DEI SUOLI SUL COMPORTAMENTO PRODUTTIVO E QUALITATIVO DELLA CULTIVAR NERO D’AVOLA IN UN AMBIENTE CALDO-ARIDO DELLA SICILIA SUD-OCCIDENTALE
No full textFerroic Transition Metal Oxide Nano‐heterostructures: From Fundamentals to Applications
No full textNanostructured transition metal oxides (TMOs) showing a ferroic order have attracted a great deal of attention over the last two decades both for fundamental studies and for technological applications in different fields, such as information storage/processing, sensors, biomedicine, and energy. The strong coupling between charge, spin, orbital, and lattice symmetry in complex TMOs gives rise to a wide range of physical properties, including magnetism, ferroelectricity, piezoelectricity, multiferroicity, and colossal magnetoresistance, which can be finely tuned by varying the chemical composition and crystal structure. Spurred by recent advances in synthesis and characterization techniques, the interfacial effect in heterostructures combining two or more different oxides has emerged as a powerful tool to further engineer the final properties in ferroic oxides. Following a brief overview on the ferroic properties of nanostructured complex TMOs, topical examples of different nanostructured oxide heterostructures and their potential applications will be illustrated
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