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See detailPOSTER: WLAN Device Fingerprinting using Channel State Information (CSI)
Adamsky, Florian UL; Retunskaia, Tatiana UL; Schiffner, Stefan UL et al

in 11th ACM Conference on Security and Privacy in Wireless and Mobile Networks (ACM WiSec) (2018, June)

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See detailA posteriori error estimation for extended finite elements by an extended global recovery
Duflot, M.; Bordas, Stéphane UL

in International Journal for Numerical Methods in Engineering (2008), 76(8), 1123-1138

This contribution presents an extended global derivative recovery for enriched finite element methods (FEMs), such as the extended FEM along with an associated error indicator. Owing to its simplicity ... [more ▼]

This contribution presents an extended global derivative recovery for enriched finite element methods (FEMs), such as the extended FEM along with an associated error indicator. Owing to its simplicity, the proposed scheme is ideally suited to industrial applications. The procedure is based on global minimization of the L2 norm of the difference between the raw strain field (C-1) and the recovered (C0) strain field. The methodology engineered in this paper extends the ideas of Oden and Brauchli (Int. J. Numer. Meth. Engng 1971; 3) and Hinton and Campbell (Int. J. Numer. Meth. Engng 1974; 8) by enriching the approximation used for the construction of the recovered derivatives (strains) with the gradients of the functions employed to enrich the approximation employed for the primal unknown (displacements). We show linear elastic fracture mechanics examples, both in simple two-dimensional settings, and for a three-dimensional structure. Numerically, we show that the effectivity index of the proposed indicator converges to unity upon mesh refinement. Consequently, the approximate error converges to the exact error, indicating that the error indicator is valid. Additionally, the numerical examples suggest a novel adaptive strategy for enriched approximations in which the dimensions of the enrichment zone are first increased, before standard h- and p-adaptivities are applied; we suggest to coin this methodology e-adaptivity. Copyright © 2008 John Wiley & Sons, Ltd. [less ▲]

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See detailPostface - Innovations et interventions sociales
Houssemand, Claude UL

in Ben Mrad, Fathi; Distler, Frédéric; Méloni, Jean-Paul (Eds.) Innovations et interventions sociales: initiatives, adaptations et créations (2020)

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See detailDas postfaktische Drängen des Buchstaben in Zeiten rechtlich-sprachlicher Entgrenzung
Becker, Katrin UL

Presentation (2017, December 01)

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See detailDas postfaktische Drängen des Buchstaben in Zeiten rechtlich-sprachlicher Entgrenzung
Becker, Katrin UL

in Geisenhanslüke, Achim (Ed.) Buchstäblichkeit Theorie, Geschichte, Übersetzung (2019)

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See detailPostmoderne Erziehung: zwischen Kontingenz und Engagement
Biesta, Gert UL

in Heyting, F.; Tenorth, H.-E. (Eds.) Pädagogik und Pluralismus. Deutsche und niederländische Erfahrungen im Umgang mit Pluralität in Erziehung und Erziehungswissenschaft. (1994)

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See detailPostmoderne opvoeding: tussen contingentie en engagement
Biesta, Gert UL

in Pedagogiek en Pluralisme. Duitse en Nederlandse visies op pluraliteit in de theorie en de praktijk van de opvoeding. (1993)

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See detailPostmoderner Urbanismus. Gestaltung in der städtischen Peripherie
Hesse, Markus UL

in Geographische Zeitschrift (2007), 94(2), 118-20

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See detailPostmodernism and the repoliticization of education.
Biesta, Gert UL

in Interchange (1995), 26

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See detailPostmodernism, neopragmatism och utbildning: återkomsten för det politiska.
Biesta, Gert UL

in Säfström, C. A.; Östman, L. (Eds.) Textanalys. Introduktion till syftesrelaterad kritik. (1999)

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See detailPostmonolingual schreiben? Zum Jargon der Philologie
Dembeck, Till UL

in Zeitschrift für Interkulturelle Germanistik (2012), (2), 133147

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See detailPostmonolingual schreiben? Zum Jargon der Philologie. (zus. mit Till Dembeck)
Mein, Georg UL

in Zeitschrift für Interkulturelle Germanistik (2013), (2), 133-147

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See detailPostprandial hyperglycemia stimulates neuroglial plasticity in hypothalamic POMC neurons after a balanced meal
Nuzzaci, Danaé; Cansell, Céline; Liénard, Fabienne et al

in Cell Reports (2020), 30

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See detailPostulates for Revocation Schemes
Cramer, Marcos UL; Casini, Giovanni UL

in Cramer, Marcos; Casini, Giovanni (Eds.) Principles of Security and Trust. Proceedings of the 6th International Conference POST 2017 (2017, January 18)

In access control frameworks with the possibility of delegating permissions and administrative rights, delegation chains can form. There are di erent ways to treat these delegation chains when revoking ... [more ▼]

In access control frameworks with the possibility of delegating permissions and administrative rights, delegation chains can form. There are di erent ways to treat these delegation chains when revoking rights, which give rise to di erent revocation schemes. Hagstr om et al. [11] proposed a framework for classifying revocation schemes, in which the di erent revocation schemes are de ned graph-theoretically. At the outset, we identify multiple problems with Hagstr om et al.'s de nitions of the revocation schemes, which can pose security risks. This paper is centered around the question how one can systematically ensure that improved de nitions of the revocation schemes do not lead to similar problems. For this we propose to apply the axiomatic method originating in social choice theory to revocation schemes. Our use of the axiomatic method resembles its use in belief revision theory. This means that we de ne postulates that describe the desirable behaviour of revocation schemes, study which existing revocation frameworks satisfy which postulates, and show how all de ned postulates can be satis ed by de ning the revocation schemes in a novel way. [less ▲]

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See detailPosture éthique et compétences de l'enseignant
Weber, Jean-Marie UL

in Transfert (2006)

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See detailPostwachstum finanzieren? Grüne Finanzprodukte für veränderte Produktionslogiken
Dörry, Sabine; Schulz, Christian UL

in Lange, Bastian; Hülz, Martina; Schmid, Benedikt (Eds.) et al Postwachstumsgeographien. Raumbezüge diverser und alternativer Ökonomien (2020)

Detailed reference viewed: 43 (4 UL)