Search results for " IR"
showing 10 items of 1350 documents
Reconstruction of an effective magnon mean free path distribution from spin Seebeck measurements in thin films
2017
A thorough understanding of the mean-free-path (MFP) distribution of the energy carriers is crucial to engineer and tune the transport properties of materials. In this context, a significant body of work has investigated the phonon and electron MFP distribution, however, similar studies of the magnon MFP distribution have not been carried out so far. In this work, we used thickness-dependence measurements of the longitudinal spin Seebeck (LSSE) effect of yttrium iron garnet films to reconstruct the cumulative distribution of a SSE related effective magnon MFP. By using the experimental data reported by Guo et al. [Phys. Rev. X 6, 031012 (2016)], we adapted the phonon MFP reconstruction algo…
X-ray versus Ultraviolet Irradiation of Astrophysical Ice Analogs Leading to Formation of Complex Organic Molecules
2019
In astrochemistry, complex organic molecules (COMs) are defined as species with at least one C atom and six or more atoms in total. More than 70 COMs were detected toward various interstellar and c...
Corporate social irresponsibility and stakeholders' support: evidence from a case study
2022
AbstractStakeholders’ decisions regarding whether to continue to support a firm after it has been perceived as culpable for socially irresponsible behaviour is “coin of the realm” in selecting which firms (or which parts of a firm) will be able to survive a corporate social irresponsibility (CSI) scandal. Our empirical setting is an embedded polar case of audience support, the Parmalat case, following a severe CSI scandal. The scandal represented a “trigger event” that ignited an active reevaluation of the firm on behalf of its stakeholders. We show that, while the firm’s cognitive legitimacy was not harmed by the CSI scandal, two dimensions of legitimacy played a key role in stakeholder ev…
Le attività di culto nella scuola pubblica, tra laicità, «libertas Ecclesiae» e libertà religiosa collettiva
2016
Il contributo, sottoposto a valutazione, è frutto della riflessione comune dei due Autori; tuttavia, i paragrafi 1, 2, 3 e 4 sono opera di Fabiano Di Prima, i paragrafi 5, 6, e 7 di Marco Dell’Oglio SOMMARIO: - 1. Premessa. Il "ritorno" della religione e la riaffermazione degli Stati nazionali nell'ultimo quarto di secolo; l'"accerchiamento" della laïcité - 2. Il mancato sviluppo di una metodica giurisprudenziale focalizzante la "specificità" della laicità italiana; l'emersione di un trend individuante solo i (relativi) profili comuni alla laïcité - 3. Un caso paradigmatico: la sentenza n. 166 del 2016 del T.A.R. Emilia Romagna sul tema dello svolgimento di attività cultuali nella scuola pu…
Costituzionalismo ed esperienze costituzionali in Iran
2015
Il lavoro tende ad esaminare se e come il pensiero filosofico di tradizione sciita abbia influenzato il sistema costituzionale iraniano. Partendo, quindi, dall’esperienza costituzionale del 1906-1907 fino alla revisione costituzionale del 1989 della vigente Costituzione, si è cercato di delineare come si sia evoluta la forma di governo, il diverso ruolo che il diritto religioso ha assunto all’interno dell’ordinamento iraniano e quali limiti siano stati previsti all’azione del governo. The purpose of this study is to analyse to what extent the Shiite jurisprudence has influenced the Iranian constitutional system. This study will provide an outline of the evolution of the form of government f…
I mercati coperti a Palermo. Architettura e tecnica nella costruzione in ferro tra Ottocento e Novecento
2020
The history of the construction and transformations of the covered iron markets in Palermo, between the nineteenth and twentieth centuries, is very interesting for scholars of historical construction techniques and systems and studies - in addition to the evolution, progress and rethinking - also the assumptions economic and social which made it possible to better organize trade within designed buildings. The essay offers some reflections on two covered markets designed by Giuseppe Damiani Almejda in Palermo and representative of that short and fervent Iron Age that was able to combine the needs of local entrepreneurs, who found a promising opportunity for growth in iron processing, and the…
FATIGUE CRACK PROPAGATION THROUGH AUSTEMPERED DUCTILE IRON MICROSTRUCTURE
2010
Austempered ductile iron (ADI) has a wide range of application, particularly for castings used in automotive and earth moving machinery industries. These components are usually subjected to variable dynamic loading that may promote initiation and propagation of fatigue cracks up to final fracture. Thus, it is important to determine the fatigue crack propagation behavior of ADI. Since fatigue crack growth rate (da/dN) vs. stress intensity factor K data describe fatigue crack propagation resistance and fatigue durability of structural materials, da/dN vs. Ka curves of ADI 1050 are reported here. The threshold amplitude of stress intensity factor Kath is also determined. Finally, the influence…
Assessing Hydrus-2D to Simulate Soil Water Content (SWC) and Salt Accumulation Under an SDI System: Application to a Potato Crop in a Semi-Arid Area …
2015
In this paper the suitability of the HYDRUS-2D model to simulate volumetric soil water content in the root zone of a potato crop under subsurface drip irrigation (SDI) is initially assessed on the basis of a field study. Then, considering that the crop is moderately sensitive to soil salinity, the model is tested to predict the salt distribution around a buried emitter, when two different water qualities (i.e. electrical conductivity of 1.0 and 4.0 dS m-1) are used during the growing season (treatments T1 and T2). Finally, the soil volume in which salt accumulates is distinguished by the model for the two treatments, for which the respective yields are not significantly different. The resul…
Irrigation water intensity and climate variability: an agricultural crops analysis of Italian regions
2020
This paper examines the relationship between the requirement of water resources for irrigation and climate variability and analyses the ranking of the best and worst performance of irrigation water intensity for each Italian region. To measure water resources demanded by agriculture, the irrigation water intensity (IWI) indicator has been computed as the ratio between volumes of irrigation water and total crop harvested. By applying panel data methodologies to a regional dataset spanning from 2000 to 2009, we may address heterogeneity and omitted variable issues. By merging meteo-climatic with agricultural variables, we may confirm that water precipitations, maximum temperature, irrigation …
Spin Cross-Over (SCO) Complex Based on Unsymmetrical Functionalized Triazacyclononane Ligand: Structural Characterization and Magnetic Properties
2019
International audience; The unsymmetrical ligand 1-(2-aminophenyl)-4,7-bis(pyridin-2-ylmethyl)-1,4,7-triazacyclononane (L6) has been prepared and characterized by NMR spectroscopy. The L6 ligand is based on the triazamacrocycle (tacn) ring that is functionalized by two flexible 2-pyridylmethyl and one rigid 2-aminophenyl groups. Reaction of this ligand with Fe(ClO4)2·xH2O led to the complex [Fe(L6)](ClO4)2 (1), which was characterized as the first Fe(II) complex based on the unsymmetrical N-functionalized tacn ligand. The crystal structure revealed a discrete monomeric [FeL6]2+ entity in which the unsymmetrical N-functionalized triazacyclononane molecule (L6) acts as hexadentate ligand. As …