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Why, in the late 1960's, did ethnic minorities such as Scots and Welsh, Quebecois, Bretons and Basques unexpectedly begin to protest and assert their demands with fresh vigor, confidence, and even violence? What are the factors that help to explain the activation of these ethnic political movements, some of which now threaten the continued integrity of such long-established states as Canada and Great Britain? This book represents the first systematic attempt to deal with the re-emergence of ethnic conflict in Western societies. In addition to three historical and theoretical essays, there are eleven case studies of countries where ethnic nationalism has become politically significant. In a concluding chapter the editor comments on the theoretical and policy implications of the country studies.
A comprehensive, 1998 account of the practical aspects and pitfalls of the applications of fractal modelling in the physical sciences.
The NATO Advanced Study Institute on "Scale Invariance, Interfaces and Non Equilibrium Dynamics" was held at the Isaac Newton Institute for Mathematical Sciences in Cambridge, UK from 20-30 June 1994. The topics discussed at the Institute were all concerned with the origin and nature of complex structures found far from equilibrium. Examples ranged from reaction diffusion systems and hydrodynamics through to surface growth due to deposition. A common theme was that of scale invariance due to the self-similarity of the underly ing structures. The topics that were covered can be broadly classified as pattern for mation (theoretical, computational and experimental aspects), the non-equilibrium ...
Bringing together the concerted efforts of the multicomponent materials community in one decisive reference work, this handbook covers all the important aspects from fundamentals to applications: thermodynamics, microscopic processes, solidification, simulation and modeling. As such, it provides a vital understanding of melt and solidification processes, treating all simulation techniques for continuous and discrete systems, such as molecular dynamics, Monte Carlo, and finite elements calculations.
Publishes papers that report results of research in statistical physics, plasmas, fluids, and related interdisciplinary topics. There are sections on (1) methods of statistical physics, (2) classical fluids, (3) liquid crystals, (4) diffusion-limited aggregation, and dendritic growth, (5) biological physics, (6) plasma physics, (7) physics of beams, (8) classical physics, including nonlinear media, and (9) computational physics.
Die vorliegende Arbeit behandelt verschiedene Aspekte der raum-zeitlichen Musterbildung in biologischen oder biologisch motivierten Reaktions-Diffusions-Systemen. Die hierbei auftretenden Muster werden entweder durch die, dem System auferlegten, Randbedingungen oder durch diffusive Kopplung nichtlinearer biochemischer Reaktionen hervorgerufen. Im ersten Teil der Arbeit werden Systeme in singular gestorten zwei- oder drei-dimensionalen Gebieten untersucht. Das sind Gebiete mit kleinen Lochern im Innern oder auf dem Rand des Definitionsgebietes. Mit Hilfe asymptotischer Methoden wird gezeigt, dass sich die Locher wie Punktsingularitaten verhalten, die durch entsprechende Greensche oder Neumann...
Molecular dynamics is a well-established technique for simulating complex many-particle systems in many areas of physics, chemistry, and astrophysics. The huge computational requirements for simulations of large systems, especially with long-range forces, demand the use of massively parallel computers. Designing efficient algorithms for these problems is a highly non-trivial task. This book contains the invited talks and abstracts presented at a conference by more than 100 researchers from various fields: computer science, solid state physics, high energy physics, polymers, biochemistry, granular materials and astrophysics. Most of the contributions have been written by users of massively parallel computers and deal with practical issues, but there are also contributions tackling more fundamental algorithmic problems.
The current work analyzes degradation effects in solid-oxide fuel cell anodes with the phase-field method. A model extension for interface diffusion is formulated and calibrated. Large-scale 3D-simulations provide interesting insights into phenomena at the microscale which are responsible for the degradation
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