Search results for "Underground"
showing 10 items of 80 documents
GIGJ: a crustal gravity model of the Guangdong Province for predicting the geoneutrino signal at the JUNO experiment
2019
Gravimetric methods are expected to play a decisive role in geophysical modeling of the regional crustal structure applied to geoneutrino studies. GIGJ (GOCE Inversion for Geoneutrinos at JUNO) is a 3D numerical model constituted by ~46 x 10$^{3}$ voxels of 50 x 50 x 0.1 km, built by inverting gravimetric data over the 6{\deg} x 4{\deg} area centered at the Jiangmen Underground Neutrino Observatory (JUNO) experiment, currently under construction in the Guangdong Province (China). The a-priori modeling is based on the adoption of deep seismic sounding profiles, receiver functions, teleseismic P-wave velocity models and Moho depth maps, according to their own accuracy and spatial resolution. …
A risk assessment proposal for underground cavities in Hard Soils-Soft Rocks
2018
Abstract Underground calcarenite quarries in Marsala (Sicily) have been involved in a number of collapses that have, seriously damaged numerous buildings. The stability conditions were therefore examined in order to assess risk conditions within the historical centre of the town and the surrounding areas, which are subject to urban expansion. Starting with an extensive collection of historical information, the research was carried out through surveys of the cavities, systematic sampling of material, petrographic analysis and geotechnical testing. The results of laboratory tests and in situ investigations provided a geotechnical characterization of both the intact material and the rock mass.…
First muography of Stromboli volcano
2019
AbstractMuography consists in observing the differential absorption of muons – elementary particles produced through cosmic-ray interactions in the Earth atmosphere – going through the volcano and can attain a spatial resolution of tens of meters. We present here the first experiment of nuclear emulsion muography at the Stromboli volcano. Muons have been recorded during a period of five months by a detector of 0.96 m2 area. The emulsion films were prepared at the Gran Sasso underground laboratory and were analyzed at Napoli, Salerno and Tokyo scanning laboratories. Our results highlight a significant low-density zone at the summit of the volcano with density contrast of 30–40% with respect …
Extricating New Physics Scenarios at DUNE with High Energy Beams
2017
The proposed Deep Underground Neutrino Experiment (DUNE) utilizes a wide-band on-axis tunable muon-(anti)neutrino beam with a baseline of 1300 km to search for CP violation with high precision. Given the long baseline, DUNE is also sensitive to effects due to non-standard neutrino interactions (NSI) which can interfere with the standard 3-flavor oscillation paradigm. In this Letter, we exploit the tunability of the DUNE neutrino beam over a wide-range of energies and utilize a new theoretical metric to devise an experimental strategy for separating oscillation effects due to NSI from the standard 3-flavor oscillation scenario. Using our metric, we obtain an optimal combination of beam tunes…
Traduir sota la dictadura franquista, traduir clandestinament: Poesia (1944-1945) i Ariel (1946-1951)
2013
Acabada la guerra civil, la dictadura de Francisco Franco va prohibir les traduccions al català durant una dècada, fins al 1948, en què van aparèixer l’Odissea de Carles Riba i la Divina Comèdia de Josep M. de Sagarra en condicions molt restrictives. Aquestes condicions es van mantenir pràcticament inalterables fins al 1962, quan va deixar de practicar-se la censura lingüística prèvia davant la demanda de publicar qualsevol traducció catalana. En la dècada dels quaranta, quan la persecució era més severa, van sortir a llum dues revistes clandestines en català, Poesia (1944-1945) i Ariel (1946-1951), que van traduir regularment una selecció de l’obra dels noms canònics de la literatura occid…
Determining the dark matter mass with DeepCore
2013
Cosmological and astrophysical observations provide increasing evidence of the existence of dark matter in our Universe. Dark matter particles with a mass above a few GeV can be captured by the Sun, accumulate in the core, annihilate, and produce high energy neutrinos either directly or by subsequent decays of Standard Model particles. We investigate the prospects for indirect dark matter detection in the IceCube/DeepCore neutrino telescope and its capabilities to determine the dark matter mass.
Micropropagation of Globe Artichoke (Cynara cardunculus L. var. scolymus).
2013
The globe artichoke (Cynara cardunculus L. var. scolymus) is a perennial plant cultivated in the Mediterranean region and the Americas for its edible young flower heads. Although vegetative propagation by offshoots or by “ovoli” (underground dormant axillary buds) has been the primary method of propagation, the potential for the diffusion of diseases and the phenotypic variability can be very high. The propagation of this species by axillary shoot proliferation from in vitro cultured meristems produces systemic pathogen free plants and a higher multiplication rate as compared to that obtained by conventional agamic multiplication. Axillary shoot proliferation can be induced from excised sho…
'A place to play another music': latviešu un lietuviešu underground mūzika pārejas periodā no padomju uz pēcpadomju laiku
2015
Šī pētījuma mērķis ir atklāt kā dažādi andergraunda mūzikas aspekti mainījušies Latvijai un Lietuvai pārejot no Padomju Savienības uz postpadomju režīmu, posmā no 1985. līdz 1995. gadam. Veids, kādā noteiktas subkultūras identitāte veidojas ar kultūras palīdzību, tiek pētīts, izmantojot mutvārdu vēsturi. Veiktās intervijas ar andergraunda virziena pārstāvjiem, ļāva nonākt pie objektīvāka salīdzinājuma mūzikas lomai gan laikā – pārejā no padomju uz pēcpadomju periodu, gan telpā - starp Lietuvu un Latviju. Izstrādājot maģistra darbu tika secināts, ka Padomju Savienības periodā andergraunda mūzikas subkultūras identitāte tika veidota rīkojot koncertus, savukārt postpadomju periodā to nostiprin…
Conferencia sobre "Alternativas populares y medios de comunicación de masas"
1978
Rayleigh scattering of linear alkylbenzene in large liquid scintillator detectors.
2015
Rayleigh scattering poses an intrinsic limit for the transparency of organic liquid scintillators. This work focuses on the Rayleigh scattering length of linear alkylbenzene (LAB), which will be used as the solvent of the liquid scintillator in the central detector of the Jiangmen Underground Neutrino Observatory. We investigate the anisotropy of the Rayleigh scattering in LAB, showing that the resulting Rayleigh scattering length will be significantly shorter than reported before. Given the same overall light attenuation, this will result in a more efficient transmission of photons through the scintillator, increasing the amount of light collected by the photosensors and thereby the energy…