Search results for "PASS"
showing 10 items of 1629 documents
A new measurement of the Collins and Sivers asymmetries on a transversely polarised deuteron target
2007
New high precision measurements of the Collins and Sivers asymmetries of charged hadrons produced in deep-inelastic scattering of muons on a transversely polarised 6LiD target are presented. The data were taken in 2003 and 2004 with the COMPASS spectrometer using the muon beam of the CERN SPS at 160 GeV/c. Both the Collins and Sivers asymmetries turn out to be compatible with zero, within the present statistical errors, which are more than a factor of 2 smaller than those of the published COMPASS results from the 2002 data. The final results from the 2002, 2003 and 2004 runs are compared with naive expectations and with existing model calculations.
E-passin teknologiaratkaisu
2017
Tutkielmassa kerrotaan passin kehitys tavallisesta matkustusasiakirjasta e-passiksi. Työssä esitellään e-passin sovelluksen tekniset ratkaisut. Teknologiaratkaisuun kuuluu olennaisena RFID -mikrosiru ja sille tallennettu biometrinen tunniste. Tutkimuksessa selvitetään yleisemmät biometriset tunnisteet ja niiden käsittelyvaiheet. Työ on tieteellisiin artikkeleihin perustuva kirjoitelma. Yhdysvaltojen e-passiin toteutettiin RFID-tunniste ja se sai aikanaan arvostelua teknologiavalinnoista. Euroopan ja Suomen e-passien kehitykseen on vaikuttanut kokemukset Yhdysvaltojen e-passin käyttöönottoprojektista. Tutkielmassa pyritään löytämään eroja Yhdysvaltojen, Euroopan ja Suomen e-passien tietoturv…
Geometria e funzionalità delle corsie di bypass per la svolta a destra
2013
OBIETTIVO PUNTATO SULL’INCREMENTO DELLA CAPACITA' DELLE INTERSEZIONI A ROTATORIA CONVENZIONALI E INNOVATIVE ATTRAVERSO L’IMPIEGO DEI BYPASS PER LA SVOLTA A DESTRA, TIPOLOGIA DI INFRASTRUTTURA STRADALE I CUI PRINCIPALI CRITERI COMPOSTIVI E LE CUI PROCEDURE DI DIMENSIONAMENTO DEGLI ELEMENTI MODULARI VENGONO DESCRITTI NEL DETTAGLIO DAGLI AUTORI. PRESI IN ESAME, ANCHE I PIù RECENTI MODELLI MATEMATICI PER LA STIMA DELLA CAPACITà DELLE CORSIE DI BYPASS E DELLA CAPACITà SEMPLICE DEGLI INGRESSI IN ROTATORIA.
RSS-eye: Human-assisted Indoor Localization without Radio Maps
2015
The pervasive diffusion of smartphones is boosting indoor positioning solutions and location-based services. We propose a novel methodology to perform indoor positioning of mobile users by the estimation of angles of arrival from access points whose locations are known. Angles of arrival are estimated by correlating WiFi RSSI measurements with data coming from a digital compass, which is provided by most current handsets. Our system has minimal requirements in terms of infrastructure and mobile hardware. The system neither needs calibration, nor radio maps but requires the user to perform a gesture when an estimation is needed. The resulting on-demand localization has advantages in terms of…
The CoSMOS L-band experiment in Southeast Australia
2007
The CoSMOS (Campaign for validating the Operation of the Soil Moisture and Ocean Salinity mission) campaign was conducted during November of 2005 in the Goulburn River Catchment, in SE Australia. The main objective of CoSMOS was to obtain a series of L-band measurements from the air in order to validate the L-band emission model that will be used by the SMOS (Soil Moisture and Ocean Salinity) ground segment processor. In addition, the campaign was designed to investigate open questions including the Sun-glint effect over land, the application of polarimetric measurements over land, and to clarify the importance of dew and interception for soil moisture retrievals. This paper summarises the …
Ex Oriente Aura: Le torri del vento in Iran
2008
The effect of Water on passive cooling systems in the Arab-Norman architecture of the Zisa Palace in Palermo
2019
This paper shows the theories argued by some historians with reference to the working of natural water passive cooling systems employed in the Zisa Complex. Albeit such theories are seminal attempts to understand passive water systems, they have no scientific evidence. This study instead concentrates on a more rigorous treatment that enabled to set up a robust framework for designing a historical water passive system such as the Salsabil, which in fact was conceived and developed in an empirical way. Several historical buildings of the Mediterranean and Middle Eastern architecture include relevant artefacts useful to control humidity and temperature through water passive systems . The archi…
Analysis of random walks on a hexagonal lattice
2019
We consider a discrete-time random walk on the nodes of an unbounded hexagonal lattice. We determine the probability generating functions, the transition probabilities and the relevant moments. The convergence of the stochastic process to a 2-dimensional Brownian motion is also discussed. Furthermore, we obtain some results on its asymptotic behavior making use of large deviation theory. Finally, we investigate the first-passage-time problem of the random walk through a vertical straight-line. Under suitable symmetry assumptions we are able to determine the first-passage-time probabilities in a closed form, which deserve interest in applied fields.
Maintaining information in Short-Term Memory between 2 and 6 years old of age : temporal forgetting and helping in maintaining the goal
2014
Working memory is an essential component of thought that is highly involved in learning and academic achievement. However, it is rarely studied in preschoolers, mainly because of a lack of suitable paradigms. Therefore, this thesis investigated the functioning of working memory in children between 2 and 6 years. For this purpose, two original paradigms were used. They were designed to be close to game situations which should help young children to focus their attention on the task. Firstly it was shown that the recall performance decreased over time, even in the absence of an interfering task. Children of this age therefore use a passive maintenance, i.e. without spontaneously implementing …
Mid-Triassic to Early Liassic clastic/evaporitic deposits over the Maghreb Platform
2003
Abstract The development of Triassic to Lower Liassic clastic/evaporitic series over the epicratonic Maghreb Platform is closely associated with the eastern opening of a Tethyan marine domain between Africa and Europe. West of the platform, Morocco became separated from North America in Late Triassic times by rifting along the axis of the Proto-Atlantic Ocean. In addition, NE–SW and ENE–WSW trending Atlasic half-grabens formed, essentially in Morocco, as part of a Late Triassic/Early Liassic Atlas rifting episode. This is the tectonic context in which the red bed to evaporite sequences were deposited. A first depositional pattern is illustrated by the areally extensive onlapping of Upper Tr…