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Documentos disponibles de esta editorial (34)
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A composite system consisting of two identical ideal gases separated by a movable, frictionless, diathermic piston is used to illustrate the application of different extremum principles in thermodynamics. The time evolution of the system from an[...]![]()
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An application of multigrid techniques for the separation of principal stresses in plane stress systems is presented. By establishing the equilibrium equations and determining the value of shear from photoelastic data a system of partial differe[...]![]()
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Klimov, A. B. ; Seyfarth, Ulrich ; de Guise, Hubert ; Sánchez Soto, Luis Lorenzo | IOP Publishing Ltd. | 2021-01-18We propose a practical recipe to compute the s-parametrized maps for systems with SU(1, 1) symmetry using a connection between the Q- and P-symbols through the action of an operator invariant under the group. This establishes equivalence relatio[...]![]()
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Martínez Matos, Óscar ; Torchia, Gustavo Adrián ; Vaveliuk, Pablo ; Bilmes, Gabriel M. ; Tocho, Jorge Omar | IOP Publishing Ltd. | 2002-03Spontaneous noncollinear second harmonic generation in potassium dihydrogen phosphate (KDP) crystals was studied theoretically and experimentally as a function of the scattering centres on the surface of the crystal. A model that explains the ma[...]![]()
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We have applied the recently developed theory of topological Uhlmann numbers to a representative model of a topological insulator in two dimensions, the Qi-Wu-Zhang model. We have found a stable symmetry-protected topological phase under externa[...]![]()
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Starting from the expression for the quality parameter of a superposition of two general fields, the case of beams that can be written in terms of the polarization basis introduced by Gori is investigated. Different types of this class of beam a[...]![]()
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Zoido Chamorro, Jesús Manuel ; Carreño Sánchez, Fernando ; Bernabeu Martínez, Eusebio | IOP Publishing Ltd. | 1999-05Colour detection systems can be specified in terms of a set of spectral functions (colour-matching functions in the case of human observers). By taking these functions into account we define the characteristic matrix associated with a given colo[...]![]()
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Introductory textbooks in solid state physics usually present the hydrogenic impurity model to calculate the energy of carriers bound to donors or acceptors in semiconductors. This model treats the pure semiconductor as a homogeneous medium and [...]![]()
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Rollano, V. ; Muñoz Noval, Álvaro ; Valle, J. del ; Menghini, M. ; Ory, M. C. de ; Prieto, J. L. ; Navarro Palma, Elena ; González Herrera, Elvira María ; Vicent López, José Luis | IOP Publishing Ltd. | 2019-11-29A controlled local enhancement of superconductivity yields unexpected modifications in the vortex dynamics. This local enhancement has been achieved by designing an array of superconducting Nb nanostructures embedded in a V superconducting film.[...]