1,352 research outputs found
Study of ageing in glass MRPCs
No full textThe Multigap Resistive Plate Chamber (MRPC) is used in many experiments due to its excellent efficiency and time resolution. We have studied the ageing effect on MRPC's glass sheets. In particular we analysed an MRPC built with glass sheets that had been used for ten years in a cosmic ray study. We extracted the glass sheets from these old chambers and built a new MRPC chamber. We used different configurations; significant changes in the efficiency and time resolution have been observed
Performance study of a large 1 × 1 m2 MRPC with 1 × 1 cm2 readout pads
No full textA Semi-Digital Hadronic Calorimeter (SDHCAL) concept has been proposed for future leptonic collider experiments. The multigap resistive plate chamber (MRPC) is a candidate for the detector planes of this calorimeter. We have constructed three MRPCs of 1m × 1m size for tests of the SDHCAL. Two have 4 gas gaps and one has 5 gas gaps. To achieve high granularity for a calorimeter, the signals from the MRPC are readout by 1×1cm2 pads. The three MRPCs have similar design but the fishing line spacer has different configurations. All three MRPCs were successfully tested in the T10 test beam facility at CERN with a gas mixture of 95% C2H2F4 and 5% SF6. The efficiency and multiplicity of these chambers have been studied. All chamber reached around 94% efficiency at the proper operating voltage
Aesthetics in data visualization: case studies and design issues
No full textData visualization has been one of the major interests among interaction designers thanks to the recent advances of visualization authoring tools. Using such tools including programming languages with Graphics APIs, websites with chart topologies, and open source libraries and component models, interaction designers can more effectively create data visualization harnessing their prototyping skills and aesthetic sensibility. However, there still exist technical and methodological challenges for interaction designers in jumping into the scene. In this article, the authors introduce five case studies of data visualization that highlight different design aspects and issues of the visualization process. The authors also discuss the new roles of designers in this interdisciplinary field and the ways of utilizing, as well as enhancing, visualization tools for the better support of designers
From the Printer’s Mind to the Author’s Hand: Paolo Manuzio and His Tre libri di lettere volgari (1556–1560)
No full textThis article aims to focus on the activity of an important Venetian publisher-editor, Paolo Manuzio, the son of Aldo, who, while resuming his father’s profession, also pursued his intent of becoming a well-known author. More specifically, the article analyses Paolo Manuzio’s contribution to a specific genre, a genre to which he had already contributed as a publisher-editor, that of vernacular epistolary collections. The genre had shown great dynamism and success between the beginning of the 1540s and the end of the 1550s, and Manuzio had edited and published the most important epistolary anthology of the 16th century, the Lettere volgari di diversi nobilissimi huomini et eccellentissimi ingegni scritte in diverse materie, come out in three successive volumes, with the first published in 1542, the second in 1545 and the third in 1564, and had reached a total of 28 editions before 1567.
Between 1556 and 1560 Paolo Manuzio focused his efforts on becoming an author. This is confirmed by the collections of his Latin and vernacular letters which Manuzio edited between 1556 and 1560.
This essay examines the books of Letters written and published by Manuzio in 1556 and in 1560 and precisely the editions with the title Tre libri di Lettere Volgari and Lettere volgari di M. Paolo Manutio divise in Quattro libri, bearing titles which clearly refer to the anthology which had made him famous: the Lettere volgari di diversi nobilissimi huomini. The aim is to analyse the two editions and the conditioning exerted by the cultural , social, political and religious world in which the author lived and worked selecting his letters. Analysing the second edition (1560) is possible to explore the authorial self-censorship. The changes that Paolo made were two-fold. First are foremost, he updated the contents to include events of the intervening three years, and secondly he exercised a measure of self-censorship, omitting certain letters that contained considerations on the most private aspects of his life and that of his relatives, as well as those addressed to men whose religious beliefs had become suspect and were under investigation by the Inquisition for heterodoxy (Francesco Porto, Pietro Carnesecchi). The result was a publication in which Paolo presented himself more effectively than previously as an excellent humanist publisher who had relationships with important intellectuals, prelates and politicians of the time, and who was preparing himself to receive the appointment which would change his life: head of the Papal printing house, planned for June 1561
W and Z boson production in p-Pb collisions at √sNN=5.02 TeV
No full textThe W and Z boson production was measured via the muonic decay channel in proton-lead collisions at sNN=5.02 TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward (−4.46 cms cms μμ 2 and muon transverse momentum (pT μ) larger than 20 GeV/c, is measured. The production cross section and charge asymmetry of muons from W-boson decays with pT μ > 10 GeV/c are determined. The results are compared to theoretical calculations both with and without including the nuclear modification of the parton distribution functions. The W-boson production is also studied as a function of the collision centrality: the cross section of muons from W-boson decays is found to scale with the average number of binary nucleon-nucleon collisions within uncertainties.[Figure not available: see fulltext.
W and Z boson production in p-Pb collisions at TeV root s(NN)=5.02 TeV
No full textThe W and Z boson production was measured via the muonic decay channel
in proton-lead collisions at root s(NN) = 5.02 TeV at the Large Hadron
Collider with the ALICE detector. The measurement covers backward (4.46
< y(cms) < 2.96) and forward (2.03 < y(cms) < 3.53) rapidity regions,
corresponding to Pb-going and p-going directions, respectively. The
Z-boson production cross section, with dimuon invariant mass of 60 <
m(mu mu) < 120 GeV/c(2) and muon transverse momentum (p(T)(mu)) larger
than 20 GeV/c, is measured. The production cross section and charge
asymmetry of muons from W-boson decays with p(T)(mu) > 10 GeV/c are
determined. The results are compared to theoretical calculations both
with and without including the nuclear modification of the parton
distribution functions. The W-boson production is also studied as a
function of the collision centrality: the cross section of muons from
W-boson decays is found to scale with the average number of binary
nucleon-nucleon collisions within uncertainties
W and Z boson production in p–Pb collisions at TeV
No full textThe W and Z boson production was measured via the muonic decay channel in proton-lead collisions at TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward ( GeV/ are determined. The results are compared to theoretical calculations both with and without including the nuclear modification of the parton distribution functions. The W-boson production is also studied as a function of the collision centrality: the cross section of muons from W-boson decays is found to scale with the average number of binary nucleon-nucleon collisions within uncertainties.The W and Z boson production was measured via the muonic decay channel in proton-lead collisions at TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward (−4.46 10 GeV/c are determined. The results are compared to theoretical calculations both with and without including the nuclear modification of the parton distribution functions. The W-boson production is also studied as a function of the collision centrality: the cross section of muons from W-boson decays is found to scale with the average number of binary nucleon-nucleon collisions within uncertainties.The W and Z boson production was measured via the muonic decay channel in proton-lead collisions at TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward ( GeV/ are determined. The results are compared to theoretical calculations both with and without including the nuclear modification of the parton distribution functions. The W-boson production is also studied as a function of the collision centrality: the cross section of muons from W-boson decays is found to scale with the average number of binary nucleon-nucleon collisions within uncertainties
A Florentine family in crisis: the Strozzi in the fifteenth century.
No full textPhDIn 1434 the Strozzi lineage had held a leading position in
Florentine society and government for at least one hundred and fifty
years, and was one of the largest and wealthiest of the city's
patrician lineages. The records of the catasto of 1427 and of the
scrutiny of 1433 are used to give a profile of the dominant social,
economic and political position of the Strozzi before the advent of
Medicean dominance. Their record of electoral success, and the
political and cultural leadership of influential and respected men
such as Palla di Nofri and Matteo di Simone, with other factors, put
the Strozzi amongst the greatest enemies of the victorious Medicean
regime of late 1434. The effects of political opposition and exile
on the lineage are examined both directly, through records of office-holding,
and indirectly through such indicators as marriage alliances
and household wealth. The two most prominent lines of the Strozzi
were exiled after 1434. Palla di Nofri's life and preoccupations in
his Paduan exile are examined, together with the lives of his sons;
none of these Strozzi ever returned to Florence, pursued as they were
by the enmity of the Medicean regime. The very different careers of
Filippo di Matteo and his brother Lorenzo are also examined: how they
succeeded in founding a lucrative bank in Naples, and in returning to
Florence to 'rebuild' (rifare) the position of the Strozzi lineage
there. The final decades of the century saw the Strozzi in an
economically more secure position, due substantially to the efforts
of Filippo. Except for a very small number of its members admitted
into the regime, most of the lineage is here shown to have remained
excluded from significant political office until after the fall of
the Medici regime in 1494
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