1,354,286 research outputs found

    Giobbe e la forza del dialogo. Atti del Convegno nazionale, a cura di Carlo A. Augieri

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    Il personaggio Giobbe nell'interpretazione critica lungo i secoli, a cominciare dalle riflessioni dei Padri della Chiesa, fino all'ermeneutica contemporane

    Ionic liquid gating of ultra-thin YBa2Cu3O7- x films

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    In this paper, we present a detailed investigation of the self-field transport properties of an ionic liquid gated ultra-thin YBa2Cu3O7- x (YBCO) film. From the high temperature dynamic of the resistivity (>220 K), different scenarios pertaining to the interaction between the liquid and the thin film are proposed. From the low temperature evolution of Jc and Tc, a comparison between the behavior of our system and the standard properties of YBCO is drawn. © 2016 Author(s)

    Don Tonino Bello e la teologia 'agnitiva' dell'oltre Babele

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    La lingua profetica ed il segno simbolico: l'evoluzione di un codice espressivo e semantico nella contemporaneità del linguaggio ermeneutico, a carattere religios

    La mitocritica di Frye come interpretazione 'archetipa' delle trasposizioni metaforiche del testo

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    The essay examines the mitochritics of Frye in his discursive logic, through the authors of reference: Aristotle, G. B. Vico, J. Frazer, C. G. Jung; and the basic interdisciplinary themes: myth, symbol, metaphor, narration. Through this multifaceted material, Frye reaches a profound method of reading the fundamental literary texts of world literature. Particular attention is paid to the ways in which, according to Frye, the metaphor works in mythology (especially in the biblical narrative) and in literary writing. The passage from metaphor to metonymy represents a dichotomy within the processes of signification, and involves the relationship between fiction and reality, between identity and imagery of a hypothetical, utopian, ‘possible’ world

    Investigation of Soldered REBCO Tape-Copper Joints for Superconducting Applications

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    In the growing field of higherature superconductor (HTS) applications, soldered tape-copper joints are of significant importance. This is because the resistance of the joint often plays a decisive role in the design of a superconducting device, such as current leads or current terminations of cables. A common requirement to the joint is as-low-as-possible resistance and reliable reproducibility, which is crucial for achieving a homogeneous current distribution being independent within each HTS tape placed in a superconducting device. From previous studies, it is known that resistance of HTS tape-copper joint can vary for different tapes and solders. This resistance can be considered as a sum of several contributions: REBCO-layer-copper-laminating-layer interface resistance in HTS tape, copper-laminating-layer-solder and solder-copper interface resistances, and solder and copper resistances. Here, we present current status of investigations on tape-copper joints and trials to estimate different contributions in their resistance value. © 2002-2011 IEEE

    The Vortex Path Model Analysis of the Field Angle Dependence of the Critical Current Density in Nanocomposite YBa2Cu3O7-x – BaZrO3 Films Obtained by Low Fluorine Chemical Solution Deposition

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    In the present paper, we analyze the role of in situ grown BaZrO3 (BZO) inclusions in YBa2Cu3O7-x (YBCO) thin films prepared by chemical solution deposition using a low fluorine coating solution, on the field angle dependence of the critical current density, Jc(), data using the vortex path model. In order to form a coherent picture on the BZO doping influence on the pinning properties of the YBCO matrix, detailed structural analyses performed by X-ray diffraction techniques and microstructural evaluation by transmission electron microscopy are also presented. The evaluation of different contributions to the overall, Jc, permitted us to prove the effectiveness of the BZO inclusions acting as isotropic pinning centers, reflected in a uniform component of high relative value with respect to other components. For the studied 10 mol % BZO doping concentration, a threefold increase in the critical current density, Jc, of the YBCO host is measured, in self-field at 77 K, corresponding to a value of Jc=2.9MA/cm2, whereas a factor 10 is measured at 1 T (Jc=0.35 MA/cm2)

    Anisotropy and directional pinning in YBa2Cu3O 7-x with BaZrO3 nanorods

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    Measurements of anisotropic transport properties (dc and high-frequency regime) of driven vortex matter in YBa2Cu3O 7-x with elongated strong-pinning sites (c-axis aligned, self-assembled BaZrO3 nanorods) are used to demonstrate that the effective-mass angular scaling takes place only in intrinsic physical quantities (flux-flow resistivity), and not in pinning-related Labusch parameter and critical currents. Comparison of the dynamics at different time scales shows evidence for a transition of the vortex matter toward a Mott phase, driven by the presence of nanorods. The strong pinning in dc arises partially from a dynamic effect. © 2013 Author(s)

    Identità, riconoscimento e comunità 'in contatto': il martirio di Otranto come catarsi di non-violenza

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    Il martirio di Otranto rivisto alla luce della storiografia delle "Annales" e della critica ermeneutica, rivolta alla mentalità semanticamente simbolica

    Sul segno motivato e sull'evocazione 'condensata' del senso: Todorov e la ragione simbolica

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    Todorov e la teoria del simbolo come segno motivato. Si approfondice il concetto di motivazione segnica, alla luce dell'antropologia culturale, della psicoanalisi e della semantica letteraria
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