Results 71 to 80 of about 2,033 (212)

Stability of Turing patterns in the Brusselator model [PDF]

open access: yesPhysical Review E, 2001
The selection and competition of Turing patterns in the Brusselator model are reviewed. The stability of stripes and hexagons towards spatial perturbations is studied using the amplitude equation formalism. For hexagonal patterns these equations include both linear and nonpotential spatial terms enabling distorted solutions.
B, Peña, C, Pérez-García
openaire   +2 more sources

On the Gierer-Meinhardt system with precursors

open access: yes, 2009
We consider the Gierer-Meinhardt system with a for the activator. Such an equation exhibits a typical Turing bifurcation of the second kind, i.e., homogeneous uniform steady states do not exist in the system. We establish the existence and stability of N-
Winter, M, Wei, J
core   +1 more source

Artificial Intelligence–Driven and Digital Practices for Circular Business and Finance: Insights for Advancing Hubs for Circularity

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The emerging concept of Hubs for Circularity (H4Cs) presents an opportunity to create collaborative, self‐sustaining regional industrial ecosystems that drive circular economy transitions at scale. However, the operationalisation of H4Cs faces financial, organisational and data‐driven challenges.
Aditya Tripathi   +3 more
wiley   +1 more source

Chiari I Malformation: Review and Update of Current Treatment Options

open access: yesClinical Anatomy, EarlyView.
ABSTRACT The pathophysiology of Chiari malformation type I (CM‐I) is complex, involving structural abnormalities at the craniovertebral junction that result in herniation of the cerebellar tonsils through the foramen magnum. In this study, we aim to present and evaluate current treatment options for CM‐I, with a focus on evidence‐based clinical ...
Jordan J. Lo   +11 more
wiley   +1 more source

Pattern formation in a diffusive intraguild predation model with nonlocal interaction effects

open access: yesAIP Advances, 2019
In this paper, we investigate the spatiotemporal pattern formation in a diffusive intraguild predation (IGP) model with a nonlocal interaction term in the growth of the shared resource, which extends previous studies of local reaction-diffusion IGP model.
Renji Han, Binxiang Dai, Yuming Chen
doaj   +1 more source

Spatial and spatiotemporal pattern formation in generalised Turing systems

open access: yes, 1996
Reaction-diffusion, or Turing, models have been proposed to account for a number of pattern formation phenomena in early development. However, there are a number of crucial morphogenetic phenomena that contradict the standard Turing model. Here we review
Maini, P. K.   +3 more
core   +1 more source

Dynamic‐FLPs Enabled by Orbital Hybridization Tuning: Boosting 100% CO Selectivity for Dilute CO2‐to‐CO Conversion

open access: yesCarbon Energy, EarlyView.
This study, for the first time, constructs photostructured dynamic frustrated Lewis pairs (DFLPs) via a p‐p orbital hybridization regulation strategy, achieving the 100% reduction of low‐concentration CO₂ to CO and breaking the stability‐activity trade‐off.
Xiao‐hong Wang   +6 more
wiley   +1 more source

Turing pattern dynamics in an activator-inhibitor system with superdiffusion

open access: yes, 2014
The fractional operator is introduced to an activator-inhibitor system to describe species anomalous superdiffusion. The effects of the superdiffusive exponent on pattern formation and pattern selection are studied.
Zhang, Lai,, Tian, Canrong
core   +1 more source

Mass Transport Mechanisms in 2D Laminar Nanofluidic Membranes for Separation and Energy Conversion

open access: yesCarbon Innovation, EarlyView.
This review explores how two‐dimensional laminar membranes govern the transport of ions and molecules in confinement for advanced separation and energy conversion. By discussing how nanochannel architecture shapes membrane performance, this work highlights cation intercalation and functional modifications to improve osmotic energy harvesting ...
Adhy Prihatmiko Wibowo   +3 more
wiley   +1 more source

Theory of Turing pattern formation and its experimental realization in the CIMA reaction system in the presence of materials lowering the diffusivity of activators

open access: yesFrontiers in Physics
In 1952, Alan Turing accomplished a pioneering theoretical study to show that the coupling of nonlinear chemical reactions and diffusion leads to the instability of spatially homogeneous states.
Amiko Aizawa, Kouichi Asakura
doaj   +1 more source

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