Results 81 to 90 of about 3,553,441 (219)

Critical dynamics of an interacting magnetic nanoparticle system

open access: yes, 2001
Effects of dipole-dipole interactions on the magnetic relaxation have been investigated for three Fe-C nanoparticle samples with volume concentrations of 0.06, 5 and 17 vol%. While both the 5 and 17 vol% samples exhibit collective behavior due to dipolar
Hansen, M. F.   +3 more
core   +1 more source

Modelling collective cell behaviour

open access: yesDiscrete & Continuous Dynamical Systems - A, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Markham, Deborah C.   +2 more
openaire   +2 more sources

Collective response of microrobotic swarms to external threats

open access: yesNew Journal of Physics, 2022
Many animal species organize within groups to achieve advantages compared to being isolated. Such advantages can be found e.g. in collective responses which are less prone to individual failures or noise and thus provide better group performance ...
Chun-Jen Chen, Clemens Bechinger
doaj   +1 more source

Fractional quantum Hall effect and insulating phase of Dirac electrons in graphene

open access: yes, 2009
In graphene, which is an atomic layer of crystalline carbon, two of the distinguishing properties of the material are the charge carriers two-dimensional and relativistic character.
Andrei, Eva Y.   +4 more
core   +1 more source

Random patterns in fish schooling enhance alertness: a hydrodynamic perspective [PDF]

open access: yes, 2016
One of the most highly debated questions in the field of animal swarming and social behaviour, is the collective random patterns and chaotic behaviour formed by some animal species, in particular if there is a danger.
Brümmer, Franz   +2 more
core   +2 more sources

On the integration of collective motion and temporal synchrony in animal collectives

open access: yesMovement Ecology
Animal groups come in diverse forms—from fish schools swimming in unison to crickets chirping in synchrony. Although these behaviors may seem considerably different to one another, they share a common mathematical core, and can therefore be considered in
Guy Amichay, Máté Nagy
doaj   +1 more source

Swarm potential fields with internal agent states and collective behaviour [PDF]

open access: yes, 2007
Swarm robotics is a new and promising approach to the design and control of multi-agent robotic systems. In this paper we use a model for a system of self-propelled agents interacting via pairwise attractive and repulsive potentials.
Abdel Wahid, Mohamed Hussien Mabrouk   +1 more
core  

Hydrodynamics and collective behaviour in relativistic nuclear collisions [PDF]

open access: yes, 1996
Hydrodynamics is applied to describe the dynamics of relativistic heavy-ion collisions. The focus of the present study is the influence of a possible (phase) transition to the quark-gluon plasma in the nuclear matter equation of state on collective ...
Baier   +56 more
core   +2 more sources

Non Sibi, Sed Omnibus: Influence of Supplier Collective Behaviour on Corporate Social Responsibility in the Bangladeshi Apparel Supply Chain

open access: yesJournal of Business Ethics, 2018
Local supplier corporate social responsibility (CSR) in developing countries represents a powerful tool to improve labour conditions. This paper pursues an inter-organizational network approach to the global value chain (GVC) literature to understand the
Enrico Fontana, Niklas Egels-Zandén
semanticscholar   +1 more source

Structural relaxation of polydisperse hard spheres: comparison of the mode-coupling theory to a Langevin dynamics simulation

open access: yes, 2010
We analyze the slow, glassy structural relaxation as measured through collective and tagged-particle density correlation functions obtained from Brownian dynamics simulations for a polydisperse system of quasi-hard spheres in the framework of the mode ...
Fuchs, M.   +3 more
core   +1 more source

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