Journal: The European Physical Journal Special Topics

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Abbreviation

Eur. Phys. J. Spec. Top.

Publisher

EDP Sciences

Journal Volumes

ISSN

1951-6355
1951-6401

Description

Search Results

Publications 1 - 10 of 49
  • Graf, Davy; Molitor, Françoise; Ensslin, Klaus; et al. (2007)
    The European Physical Journal Special Topics
  • Pisarenko, V.F.; Sornette, Didier (2012)
    The European Physical Journal Special Topics
  • Lozano, Sergi; Duch, Jordi; Arenas, Alex (2007)
    The European Physical Journal Special Topics
    Using a database of research projects of the European 6th Framework Programme, we present a methodology to analyze large social data sets based on a new community detection algorithm. As a main advantage, we stress that community determination makes easier the operation of crossing relational data (who is connected to whom) with particular information about each organization.
  • Chmielus, Markus; Chernenko, Volodymyr A.; Knowlton, William B.; et al. (2008)
    The European Physical Journal Special Topics
    Magneto-mechanical experiments with a rotating magnetic field of 0.97 T were performed with a Ni-Mn-Ga single crystal. Periodic strains exceeding 1% were recorded over a hundred million magneto-mechanical cycles. The twin microstructure of the cycled crystal was characterized using atomic force microscopy (AFM) and magnetic force microscopy (MFM). In the center of the sample, no twin boundaries were found. At the sample edges, the microstructure shows a dense twin pattern. The results are compared with previous experiments of differently trained crystals. It is useful to distinguish between “ineffective training”, which results in a nearly self-accommodated martensite, and “effective training”, which results in a nearly single-variant crystal. The evolution of twin structure is discussed in terms of training, magneto-mechanical cycling, and extrinsic constraints imposed by the experimental setting. It is concluded that the response of a magnetic shape memory alloy to an alternating excitation depends strongly on the initial twin microstructure established through training. In particular, ineffective training results in a twin microstructure which can adapt to extrinsic constraints resulting in continued large periodic magnetic-field-induced deformation. In contrast, the twin microstructure of an effectively trained crystal can not adapt to extrinsic constraints resulting in early failure by fracture.
  • Sagis, L. M. C.; Bijl, E.; Antono, L.; et al. (2013)
    The European Physical Journal Special Topics
  • Abe, Sumiyoshi; Herrmann, Hans J. (2017)
    The European Physical Journal Special Topics
  • Towards a living earth simulator
    Item type: Journal Article
    Paolucci, M.; Kossman, D.; Conte, R.; et al. (2012)
    The European Physical Journal Special Topics
  • Succi, Sauro; Mendoza, M.; Mohseni, F.; et al. (2014)
    The European Physical Journal Special Topics
    In this paper, we review recent progress in relativistic lattice kinetic theory and its applications to relativistic hydrodynamics. Two methods for constructing the discretised distribution function, moment matching and projection onto orthogonal polynomials, are described. Extensions to ultra-high velocities as well as improved dissipation models are discussed. We show that the existing models can successfully cover a wide range of velocities (from weak-relativistic to ultra-relativistic) and viscous regimes. Various applications, from quark-gluon plasma and relativistic Richtmyer-Meshkov instability to flows in curved manifolds are also explored. Finally, potential developments for general relativity are outlined along with future prospects for solving the full set of Einstein equations of general relativity.
  • Gasser, Urs; Ziese, F.; Maret, Georg (2014)
    The European Physical Journal Special Topics
    We compare two methods for the characterization of local order in samples undergoing crystal nucleation and growth. Particles with a crystal-like surrounding need to be identified to follow the nucleation process. Both methods are based on the knowledge of the particle positions in a small volume of the sample. (i) Local bond-order parameters are used to quantify the orientation of the nearest neighbors of a particle, while (ii) the graph method determines the topological arrangement of the nearest neighbors and the bonds between them. Both methods are used to detect crystal-like particles and crystal nuclei in a supercooled fluid surrounding and to determine the structure of small crystal nuclei. The properties of these nuclei are of great interest for a deeper understanding of crystal nucleation, and they can be studied in detail in colloidal model systems that allow to follow the evolution of the nuclei with single particle resolution.
  • Jiménez, A.; Tiampo, K.F.; Posadas, A.M.; et al. (2009)
    The European Physical Journal Special Topics
Publications 1 - 10 of 49