1,095 research outputs found

    German museum in Polish theatre?

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    Artykuł dotyczy wpływów teatru niemieckiego na teatr polski w ostatnim ćwierćwieczu. Dla opisania tego zjawiska posłużono się koncepcją sieci kulturowych Wolfganga Welscha. Pozwala ona uchwycić różne zjawiska mające udział w przepływach i wymianach między kulturami. Zastosowanie tej koncepcji do badania relacji między teatrem polskim i niemieckim pozwoliło uwzględnić zarówno przepływ technik dramatopisarskich, estetyk i praktyk teatralnych, jak i własnych doświadczeń polskich twórców. W tym świetle czerpanie przez naszych dramatopisarzy i reżyserów z osiągnięć ich niemieckich kolegów nie powinno być postrzegane jako mechaniczne naśladownictwo, lecz jako jedna z nici w sieci interkulturowych powiązań.The paper concerns the influence of German drama and theatre on the theatre work in Poland after 1989. It is an attempt to capture the mechanism of this phenomenon and to test theoretical tools to describe and interpret it. Wolfgang Welsch’s concept of transculturality (1992) has been employed, with its assumption that homogeneity is a constitutive feature of neither the contemporary multicultural societies nor contemporary cultures any longer, and that the former formula of the whole has been replaced by the formula of differentiation. Taking into consideration Welsch’s thesis that contemporary cultures are characterised by blending and mutual permeation, selected examples were presented to illustrate the impact of German drama-theatre practice on Polish theatre: the dynamic development of the young drama, the ways of understanding national drama and the emergence of political theatre as a new phenomenon in the Polish tradition

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    Computing combustion noise by combining Large Eddy Simulation with analytical models for the propagation of waves through turbine blades

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    Two mechanisms control combustion noise generation as shown by Marble and Candel [1]: direct noise, in which acoustic waves propagate through the turbine stages and indirect noise, in which vorticity and/or entropy waves generate noise as they are convected through turbine stages. A method to calculate combustion-generated noise has been implemented in a tool called CHORUS. The method uses the Large eddy simulations of the combustion chamber obtained with the unstructured solver AVBP developed at CERFACS [2] and analytical models for the propagation through turbine stages. The propagation models [3] use the compact row hypothesis to write matching conditions between the inlet and the outlet of a turbine stage. Using numerical simulations, the validity of the analytical methods is studied and the errors made quantified

    Measurement of the top quark decay branching fraction ratio R<sub>b</sub> = B(t → Wb)/B(t → Wq) and of the inclusive production cross section pp → tt in the dilepton channel at ATLAS

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    The top quark branching fraction ratio Rb and the inclusive production cross section σ tt̄ are measured in the dilepton channel using 4.6 fb-1 of proton-proton collisions at the centre-of-mass energy √ s = 7 TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. Template fits to the distribution of the number of b-tagged jets find Rb = 1.02 ± 0.01 (stat.) ± 0.07 (syst.) and σtt̄= 178 ± 3 (stat.) ± 19 (syst.) pb. Lower limits on Rb and on the CKM matrix element |Vtb| are set with the measured value of Rb to Rb > 0.88 and |Vtb| > 0.94 at 95% confidence level

    Accounting for convective effects in zero-Mach-number thermoacoustic models

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    This paper presents a methodology to account for some mean-flow effects on thermo-acoustic instabilities when using the zero-Mach-number assumption. It is shown that when a computational domain is represented under the M=0 assumption, a nonzero-Mach-number element can simply be taken into account by imposing a proper acoustic impedance at the boundaries so as to mimic the mean flow effects in the outer, not computed flow domain. A model that accounts for the coupling between acoustic and entropy waves is presented. It relies on a “delayed entropy coupled boundary condition” (DECBC) for the Helmholtz equation satisfied by the acoustic pressure. The model proves able to capture low-frequency entropic modes even without mean-flow terms in the fluctuating pressure equation

    Effect of Composition on Hydrogen Permeation Through Palladium Based Membranes

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    Multi-component synthetic gas (syngas) mixtures produced from the gasification of coal, low-grade fuel, waste and biomass offers a novel source of hydrogen production. Gasification also eliminates much of the pollutant emissions from the combustion of these fuels. Palladium based membranes present a promising method for extracting hydrogen from syngas. Experimental results are presented from a lab scale experimental facility designed and built to examine various types of palladium and palladium alloy membranes used to harvest hydrogen from syngas. The membrane examined had a 10&mu;m Pd layer supported on porous stainless&ndash;steel. This study used a mixture of pure gasses including hydrogen, nitrogen, and carbon dioxide to simulate syngas of different compositions. The focus aimed to determine whether composition of syngas affected hydrogen separation performance under various operating conditions. It was concluded that in addition to the hydrogen partial pressure, the partial pressure other gas species were major controllers of membrane performance

    Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s = 7 TeV pp collisions with the ATLAS detector

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    A search for the direct production of charginos and neutralinos in final states with three electrons or muons and missing transverse momentum is presented. The analysis is based on 4.7 fb−1 of proton–proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with Standard Model expectations in three signal regions that are either depleted or enriched in Z-boson decays. Upper limits at 95% confidence level are set in R-parity conserving phenomenological minimal supersymmetric models and in simplified models, significantly extending previous results

    Measurement of the production of a W boson in association with a charm quark in pp collisions at √s = 7 TeV with the ATLAS detector

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    The production of a W boson in association with a single charm quark is studied using 4.6 fb−1 of pp collision data at s√ = 7 TeV collected with the ATLAS detector at the Large Hadron Collider. In events in which a W boson decays to an electron or muon, the charm quark is tagged either by its semileptonic decay to a muon or by the presence of a charmed meson. The integrated and differential cross sections as a function of the pseudorapidity of the lepton from the W-boson decay are measured. Results are compared to the predictions of next-to-leading-order QCD calculations obtained from various parton distribution function parameterisations. The ratio of the strange-to-down sea-quark distributions is determined to be 0.96+0.26−0.30 at Q 2 = 1.9 GeV2, which supports the hypothesis of an SU(3)-symmetric composition of the light-quark sea. Additionally, the cross-section ratio σ(W + +c¯¯)/σ(W − + c) is compared to the predictions obtained using parton distribution function parameterisations with different assumptions about the s−s¯¯¯ quark asymmetry

    Search for squarks and gluinos with the ATLAS detector in final states with jets and missing transverse momentum using √s=8 TeV proton-proton collision data

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    A search for squarks and gluinos in final states containing high-p T jets, missing transverse momentum and no electrons or muons is presented. The data were recorded in 2012 by the ATLAS experiment in s√=8 TeV proton-proton collisions at the Large Hadron Collider, with a total integrated luminosity of 20.3 fb−1. Results are interpreted in a variety of simplified and specific supersymmetry-breaking models assuming that R-parity is conserved and that the lightest neutralino is the lightest supersymmetric particle. An exclusion limit at the 95% confidence level on the mass of the gluino is set at 1330 GeV for a simplified model incorporating only a gluino and the lightest neutralino. For a simplified model involving the strong production of first- and second-generation squarks, squark masses below 850 GeV (440 GeV) are excluded for a massless lightest neutralino, assuming mass degenerate (single light-flavour) squarks. In mSUGRA/CMSSM models with tan β = 30, A 0 = −2m 0 and μ > 0, squarks and gluinos of equal mass are excluded for masses below 1700 GeV. Additional limits are set for non-universal Higgs mass models with gaugino mediation and for simplified models involving the pair production of gluinos, each decaying to a top squark and a top quark, with the top squark decaying to a charm quark and a neutralino. These limits extend the region of supersymmetric parameter space excluded by previous searches with the ATLAS detector
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