Bernard Darras, Images et sémiologie. Sémiotique structurale et herméneutique
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چکیده
منابع مشابه
Synthèse et étude structurale de Na9Cr(MoO4)6
The title compound, nona-sodium chromium(III) hexa-kis[molybdate(VI)], Na9Cr(MoO4)6 was prepared by solid-state reactions. The basic structure units are isolated polyhedral clusters composed of a central CrO6 octa-hedron sharing vertices with six MoO4 tetrahedra to form an open framework in which the Na(+) cations are bound to the free vertices of the MoO4 tetra-hedra. The Cr(3+) cation has sit...
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The title compound, nonasodium chromium(III) hexakis[molybdate(VI)], β-Na9CrMo6O24, was prepared by solid-state reactions. This alluaudite-type structure is constituted of infinite layers formed by links between M 2O10 (M = C/Na) dimers and MoO4 tetra-hedra. The Na(+) and Cr(3+) cations are located in the same site with, respectively, 0.25 and 0.75 occupancies. The layers are connected to each ...
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Dr. Brooke serves well to reveal him in a more just and favourable light than that presented by many earlier and more recent writers. The message for medical historians is clear when he writes 'Strangely the diagnosis of porphyria which exonerates George III from so much speculative psychologizing brings him nearer to us as a human being'. An important function of the doctor historian is to see...
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We consider the problem of subspace estimation in aBayesian setting. Since we are operating in the Grassmann man-ifold, the usual approach which consists of minimizing the meansquare error (MSE) between the true subspace and its estimatemay not be adequate as the MSE is not the natural metric in theGrassmann manifold , i.e., the set of -dimensional subspacesin . As an al...
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ژورنال
عنوان ژورنال: Questions de communication
سال: 2009
ISSN: 1633-5961,2259-8901
DOI: 10.4000/questionsdecommunication.163