Search results for " method"
showing 10 items of 10455 documents
Confronto tra due impieghi compilatori di un testo di Marciano (A proposito del recente recupero di un manoscritto di Lauro Chiazzese)
2019
Moving from some perspectives of investigation emerged during the Roman law Seminar on ‘Orizzonti della critica testuale fra tradizione e nuovi indirizzi’, held in Palermo (16 november 2018), the A. examines a ‘comparison’ between texts, respectively, of Justinian’s Institutes and Digest [I. 2.11.5 = Marc. 4 inst. D. 29.1.22], analyzed by Lauro Chiazzese in the manuscript discovered and recently published by Giuseppe Falcone [Confronti testuali. Contributo alla dottrina delle interpolazioni giustinianee, Parte speciale (Materiali), collana Fonti - 4 degli Annali del Seminario giuridico dell’Università di Palermo, Torino 2018].
Composition and corrosion phases of Etruscan Bronzes from Villanovan Age
2008
A neutron diffraction (ND) and neutron tomography (NT) study of laminated ancient bronzes was performed at the ISIS (Rutherford Appleton Laboratory, UK) neutron source and at the BENSC reactor (Hahn-Meitner Institut, Germany). The samples are part of an 8th century BC Etruscan collection discovered in the necropolises of Osteria-Poggio Mengarelli and Cavalupo in the Vulci area (Viterbo, Italy). The study allowed us to derive-in a totally non-destructive manner-information related to the main composition of the objects, possible presence of alterations and their nature, crusts and inclusions, as well as structure of the bulk. The presence of some components is linked to a variety of question…
Szkolne projekty edukacyjne a kapitał społeczny
2018
The Large Observatory For x-ray Timing
2014
The Large Observatory For x-ray Timing (LOFT) was studied within ESA M3 Cosmic Vision framework and participated in the final down-selection for a launch slot in 2022-2024. Thanks to the unprecedented combination of effective area and spectral resolution of its main instrument, LOFT will study the behaviour of matter under extreme conditions, such as the strong gravitational field in the innermost regions of accretion flows close to black holes and neutron stars, and the supra-nuclear densities in the interior of neutron stars. The science payload is based on a Large Area Detector (LAD, 10 m 2 effective area, 2-30 keV, 240 eV spectral resolution, 1 deg collimated field of view) and a WideFi…
The XENON1T Dark Matter Experiment
2017
The XENON1T experiment at the Laboratori Nazionali del Gran Sasso (LNGS) is the first WIMP dark matter detector operating with a liquid xenon target mass above the ton-scale. Out of its 3.2 t liquid xenon inventory, 2.0 t constitute the active target of the dual-phase time projection chamber. The scintillation and ionization signals from particle interactions are detected with low-background photomultipliers. This article describes the XENON1T instrument and its subsystems as well as strategies to achieve an unprecedented low background level. First results on the detector response and the performance of the subsystems are also presented. © 2017, The Author(s).
Search for inelastic scattering of WIMP dark matter in XENON1T
2021
We report the results of a search for the inelastic scattering of weakly interacting massive particles (WIMPs) in the XENON1T dark matter experiment. Scattering off $^{129}$Xe is the most sensitive probe of inelastic WIMP interactions, with a signature of a 39.6 keV de-excitation photon detected simultaneously with the nuclear recoil. Using an exposure of 0.89 tonne-years, we find no evidence of inelastic WIMP scattering with a significance of more than 2$\sigma$. A profile-likelihood ratio analysis is used to set upper limits on the cross-section of WIMP-nucleus interactions. We exclude new parameter space for WIMPs heavier than 100 GeV/c${}^2$, with the strongest upper limit of $3.3 \time…
XENON1T Dark Matter Data Analysis: Signal Reconstruction, Calibration and Event Selection
2019
The XENON1T experiment at the Laboratori Nazionali del Gran Sasso is the most sensitive direct detection experiment for dark matter in the form of weakly interacting particles (WIMPs) with masses above $6\,$GeV/$c^2$ scattering off nuclei. The detector employs a dual-phase time projection chamber with 2.0 metric tons of liquid xenon in the target. A one metric $\mathrm{ton}\times\mathrm{year}$ exposure of science data was collected between October 2016 and February 2018. This article reports on the performance of the detector during this period and describes details of the data analysis that led to the most stringent exclusion limits on various WIMP-nucleon interaction models to date. In pa…
Ymmärrettävyystutkimuksen antia kielenopetukselle : esimerkkinä englanti vieraana kielenä
2022
Nykyaikaisessa vieraiden kielten opetuksessa on tavoitteena helposti ymmärrettävä puhe. Tämä tavoite on kielenopetukselle yhteinen päämäärä oppijoiden iästä tai taitotasosta riippumatta, ja se kulkee täten oppijoiden mukana halki elinikäisen kielenoppimisen. Tässä artikkelissa esitellään soveltavan kielentutkimuksen piirissä virinnyttä ymmärrettävyystutkimusta, joka helpottaa keskittämään kielenopetusta ymmärrettävyyden kannalta olennaisimpiin asioihin. Samalla tiivistetään suomen- ja ruotsinkielisten suomalaisten puhuman englannin ymmärrettävyyttä selvittäneen ICASEF-hankkeen päätulokset. Hankkeen tulosten ja aiemman tutkimustiedon perusteella tunnistetut englannin ymmärrettävyyteen yhdist…
An IPMSM torque/weight and torque/moment of inertia ratio optimization
2014
In this paper, a torque/weight and torque/moment of inertia ratio optimization procedure for interior permanent magnet syncronous motors (IPMSMs) is presented. More in detail, a performance comparison between several IPMSM rotor structures has been carried out in order to determine the optimum geometry that can maximize the torque/weight and torque/moment of inertia ratios. A commercial motor, with known electrical and mechanical characteristics, has been taken as reference. Its rotor structure has been modified several times, obtaining different rotor geometries and, therefore, many IPMSM models with different electrical and mechanical characteristics. The finite element method (FEM) analy…
Participatory research methods with young children : a systematic literature review
2023
This systematic literature review aimed to ascertain what participatory methods for young children have been used in peer-reviewed empirical articles. A systematic literature search yielded 75 articles. Based on their methodology, the studies were divided into six categories: (1) multi-method and the Mosaic approach, (2) observation and ethnography, (3) language-based methods, (4) visual methods, (5) creative and playful methods, and (6) children as co-researchers. The participatory features of these methods were then analyzed. The articles foregrounded the importance of the reflective use of methods, ethically grounded research practices, and carefully considering young children’s particip…