Results 1 to 10 of about 286 (69)

A model of octopus epidermis pattern mimicry mechanisms using inverse operation of the Turing reaction model

open access: yesPLoS ONE, 2021
Many cephalopods such as octopi and squid can purposefully and rapidly change their skin color. Furthermore, it is widely known that some octopi have the ability to rapidly change the color and unevenness of their skin to mimic their surroundings ...
Takeshi Ishida
doaj   +2 more sources

Turing instability and pattern formation of a fractional Hopfield reaction–diffusion neural network with transmission delay

open access: yesNonlinear Analysis, 2022
It is well known that integer-order neural networks with diffusion have rich spatial and temporal dynamical behaviors, including Turing pattern and Hopf bifurcation.
Jiazhe Lin, Jiapeng Li, Rui Xu
doaj   +1 more source

Wavelength of a Turing-type mechanism regulates the morphogenesis of meshwork patterns

open access: yesScientific Reports, 2021
The meshwork pattern is a significant pattern in the development of biological tissues and organs. It is necessary to explore the mathematical mechanism of meshwork pattern formation.
Shan Guo, Ming-zhu Sun, Xin Zhao
doaj   +1 more source

An Intensional Concurrent Faithful Encoding of Turing Machines [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2014
The benchmark for computation is typically given as Turing computability; the ability for a computation to be performed by a Turing Machine. Many languages exploit (indirect) encodings of Turing Machines to demonstrate their ability to support arbitrary ...
Thomas Given-Wilson
doaj   +1 more source

Turing-Hopf patterns in a morphochemical model for electrodeposition with cross-diffusion

open access: yesApplications in Engineering Science, 2021
This paper focuses on the impact of cross-diffusion for Turing-Hopf instability in a morphochemical model for electrodeposition (DIB) and completes the analysis on the role of cross-diffusion on pattern formation in electrodeposition we recently carried ...
Deborah Lacitignola   +2 more
doaj   +1 more source

Bifurcations and Turing patterns in a diffusive Gierer–Meinhardt model

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2023
In this paper, the Hopf bifurcations and Turing bifurcations of the Gierer–Meinhardt activator-inhibitor model are studied. The very interesting and complex spatially periodic solutions and patterns induced by bifurcations are analyzed from both ...
Yong Wang, Mengping Guo, Weihua Jiang
doaj   +1 more source

Cross-diffusion-driven Turing instability and weakly nonlinear analysis of Turing patterns in a uni-directional consumer-resource system

open access: yesBoundary Value Problems, 2017
Spatiotemporal patterns driven by cross-diffusion of a uni-directional consumer-resource (C-R) system with Holling-II type functional response are investigated in this paper.
Renji Han, Binxiang Dai
doaj   +1 more source

Density-dependent effects on Turing patterns and steady state bifurcation in a Beddington–DeAngelis-type predator–prey model

open access: yesBoundary Value Problems, 2019
In this paper, Turing patterns and steady state bifurcation of a diffusive Beddington–DeAngelis-type predator–prey model with density-dependent death rate for the predator are considered.
Hongwu Xu, Shengmao Fu
doaj   +1 more source

Spatiotemporal dynamics for a diffusive mussel–algae model near a Hopf bifurcation point

open access: yesAdvances in Difference Equations, 2021
In this paper, the Hopf bifurcation and Turing instability for a mussel–algae model are investigated. Through analysis of the corresponding kinetic system, the existence and stability conditions of the equilibrium and the type of Hopf bifurcation are ...
Shihong Zhong, Xuehan Cheng, Biao Liu
doaj   +1 more source

A Concrete View of Rule 110 Computation [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2009
Rule 110 is a cellular automaton that performs repeated simultaneous updates of an infinite row of binary values. The values are updated in the following way: 0s are changed to 1s at all positions where the value to the right is a 1, while 1s are changed
Matthew Cook
doaj   +1 more source

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