Results 21 to 30 of about 18,209,902 (318)

L-SYSTEM DESCRIPTION OF SUBDIVISION CURVES [PDF]

open access: yesInternational Journal of Shape Modeling, 2003
Summary: In recent years, subdivision has emerged as a major geometric modeling technique. Algorithms for generating subdivision curves are often specified in terms of iterated matrix multiplication. Each multiplication maps a globally indexed sequence of points that represents a coarser approximation of the curve onto a longer sequence that represents
Przemyslaw Prusinkiewicz   +3 more
openaire   +2 more sources

A constraint-based modelling approach to metabolic dysfunction in Parkinson's disease

open access: yesComputational and Structural Biotechnology Journal, 2015
One of the hallmarks of sporadic Parkinson's disease is degeneration of dopaminergic neurons in the pars compacta of the substantia nigra. The aetiopathogenesis of this degeneration is still not fully understood, with dysfunction of many biochemical ...
Longfei Mao   +5 more
doaj   +1 more source

Stochastic thermodynamics of all-to-all interacting many-body systems

open access: yesNew Journal of Physics, 2020
We provide a stochastic thermodynamic description across scales for N identical units with all-to-all interactions that are driven away from equilibrium by different reservoirs and external forces.
Tim Herpich   +3 more
doaj   +1 more source

HARQ in Full-Duplex Relay-Assisted Transmissions for URLLC

open access: yesIEEE Open Journal of the Communications Society, 2021
The Release 16 completion unlocks the road to an exciting phase pertain to the sixth generation (6G) era. Meanwhile, to sustain far-reaching applications with unprecedented challenges in terms of latency and reliability, much interest is already getting ...
Fatima Ezzahra Airod   +2 more
doaj   +1 more source

Thermodynamics of non-elementary chemical reaction networks

open access: yesNew Journal of Physics, 2020
We develop a thermodynamic framework for closed and open chemical networks applicable to non-elementary reactions that do not need to obey mass action kinetics.
Francesco Avanzini   +2 more
doaj   +1 more source

Adaptable transition systems [PDF]

open access: yes, 2012
We present an essential model of adaptable transition systems inspired by white-box approaches to adaptation and based on foundational models of component based systems. The key feature of adaptable transition systems are control propositions, imposing a
Gadducci, Fabio   +18 more
core   +1 more source

Stability in L systems

open access: yesTheoretical Computer Science, 1983
The paper studies stability in L systems using a new approach. Given an L system G, a word w is said to be k-stable in G if, once w occurs in a derivation, the derivation can proceed no more than k steps before the next occurrence of w. The set of k-stable words in an L system is called by the author the k-stable language of the system.
openaire   +2 more sources

Negative differential response in chemical reactions

open access: yesNew Journal of Physics, 2019
Reaction currents in chemical networks usually increase when increasing their driving affinities. But far from equilibrium the opposite can also happen. We find that such negative differential response (NDR) occurs in reaction schemes of major biological
Gianmaria Falasco   +3 more
doaj   +1 more source

Evolving L-Systems in a Competitive Environment [PDF]

open access: yes, 2020
Lindenmayer systems (L-systems) have been developed to model plant growth by repeatedly applying production rules to an initial axiom, and serve as a model for genetically driven growth processes found in nature. A simulation method is proposed to evolve their phenotypic representations through competition in a heterogeneous environment to further ...
Job Talle, JirĂ­ Kosinka
openaire   +1 more source

A market-based approach to recommender systems

open access: yes, 2005
Recommender systems have been widely advocated as a way of coping with the problem of information overload for knowledge workers. Given this, multiple recommendation methods have been developed.
Wei, Y.Z.   +8 more
core   +1 more source

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