Mechanics of Discrete Media: Thermoelasticity

2020 ◽  
pp. 1549-1549
Keyword(s):  
Discrete Media

scholarly journals Finite element simulation of discrete media with granular structure

2002 ◽  
Vol 38 (5) ◽  
pp. 1967-1969 ◽  
Author(s):  
R. Dittrich ◽  
T. Schrefl ◽  
H. Forster ◽  
D. Suess ◽  
W. Scholz ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Granular Structure ◽  
Element Simulation ◽  
Discrete Media

Wave propagation in discrete media

2002 ◽  
Vol 44 (1) ◽  
pp. 87-105 ◽  
Author(s):  
Arnaud Tonnelier
Keyword(s):  
Wave Propagation ◽  
Discrete Media

scholarly journals Solitary waves in discrete media with four-wave mixing

2006 ◽  
Vol 73 (6) ◽  
Author(s):  
R. L. Horne ◽  
P. G. Kevrekidis ◽  
N. Whitaker
Keyword(s):  
Solitary Waves ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Discrete Media

Diffraction and trapping of light at the interface between two discrete media

2007 ◽  
Author(s):  
S. Suntsov ◽  
K. G. Makris ◽  
D. N. Christodoulides ◽  
G. I. Stegeman ◽  
R. Morandotti ◽  
...  
Keyword(s):  
Discrete Media

scholarly journals Quantum fluctuations of elementary excitations in discrete media

2004 ◽  
Vol 2004 (1) ◽  
pp. 169-177
Author(s):  
Hermann Haken
Keyword(s):  
Quantum Noise ◽  
General Theorem ◽  
Polymer Chains ◽  
Quantum Mechanical ◽  
Projection Operators ◽  
Noise Sources ◽  
Elementary Excitations ◽  
Heisenberg Equations ◽  
Discrete Media

Elementary excitations (electrons, holes, polaritons, excitons, plasmons, spin waves, etc.) on discrete substrates (e.g., polymer chains, surfaces, and lattices) may move coherently as quantum waves (e.g., Bloch waves), but also incoherently (“hopping”) and may lose their phases due to their interaction with their substrate, for example, lattice vibrations. In the frame of Heisenberg equations for projection operators, these latter effects are often phenomenologically taken into account, which violates quantum mechanical consistency, however. To restore it, quantum mechanical fluctuating forces (noise sources) must be introduced, whose properties can be determined by a general theorem. With increasing miniaturization, in the nanotechnology of logical devices (including quantum computers) that use interacting elementary excitations, such fluctuations become important. This requires the determination of quantum noise sources in composite quantum systems. This is the main objective of my paper, dedicated to the memory of Ilya Prigogine.

scholarly journals The continuing lure of the mediated centre in times of deep mediatization: Media Events and its enduring legacy

2017 ◽  
Vol 40 (1) ◽  
pp. 114-117 ◽  
Author(s):  
Nick Couldry ◽  
Andreas Hepp
Keyword(s):  
Media Effects ◽  
Large Scale ◽  
Economic Viability ◽  
Media Events ◽  
Original Definition ◽  
Discrete Media ◽  
New Challenges ◽  
Definition Of ◽  
Integrated Media

Dayan and Katz’s book Media Events was so crucial because it challenged the dominance of quantitative communications research focused on measurable discrete ‘media effects’. But meanwhile new challenges have emerged which we called ‘deep mediatization’ – datafication, deeper fragmentation of the audience, and over the longer-term threats to the underlying economic viability of the large-scale integrated media producers that could put on ‘media events’. This makes it necessary to rethink the original definition of media events.

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