• Cross-Cultural Studies
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• v.50
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• pp.283-311
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• 2018

The Russian poet A. C. Pushkin left more than a hundred self-portraits in his lifetime. These self-portraits are the subject of a special research project. Pushkin liked to sketch himself disguised in various shapes in his manuscripts. Besides Pushkin, many authors have portrayed themselves, but in terms of their quantity and fame, it is difficult to find self-portraits that transcended those which are as detailed and revealing as that of Pushkin's. Focusing on this point, this paper first examines the position of the poet's self-portraits in the context of the tradition of the self-portrait, as a painting genre full of romanticism as manifested and revealed in the 19th century. Subsequently, this article explains the meaning of the Pushkin's typical self-portraits in profile, which were mostly drawn in his manuscripts. Finally, in order to explore the philosophical implications contained in this poet's self-portraits, this paper attempts to read poet's self-portrait in comparison with Rembrandt's self-portrait, and Montaigne's Essais as well for a comprehensive comparison of the three entities.

• Earthquakes and Structures
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• v.12 no.6
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• pp.591-601
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• 2017

To prevent or limit the damage caused by earthquakes on existing buildings, several retrofitting techniques are possible. In this work, an ultra high performance concrete based on sand dune has been formulated for use in the reinforcement of a multifunctional tower in the city of Skikda in Algeria. Tests on the formulated ultra high performance concrete are performed to determine its characteristics. A nonlinear dynamic analysis, based on the "Pushover" method was conducted. The analysis allowed an optimization of the width of reinforced concrete walls used in seismic strengthening. Two types of concrete are studied, the ordinary concrete and the ultra high performance concrete. Both alternatives are compared with the reinforcement with carbon fibers and by base isolation retrofit design.

• Journal of Information Display
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• v.12 no.4
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• pp.179-190
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• 2011

A complete analysis of the color-viewing-angle properties of different displays is presented herein using color-viewing-angle measurements made with a Fourier-optics system. The color gamut in the CIE u'v' chromatic plane was computed for all the viewing angles. The introduction of the lightness using the $L^*a^*b^*$ color space allowed a more precise analysis of the emissive properties of each display. The displays can be directly compared using a common reference. The viewing-angle dependence can be analyzed in full detail using the on-axis values as reference. The gravity center behavior and area of the color hull were computed for a more precise evaluation and comparison.