Andrew Adamatzky's Outputs (303)

On architectures of circuits implemented in simulated Belousov-Zhabotinsky droplets (2012)
Journal Article

When lipid vesicles filled with Belousov-Zhabotinsky (BZ) excitable chemical medium are packed in tight assembles, waves of excitation may travel between the vesicles. When several waves meet in a vesicle some fragments may deflect, others can annihi... Read More about On architectures of circuits implemented in simulated Belousov-Zhabotinsky droplets.

Time-dependent wave selection for information processing in excitable media (2012)
Journal Article

We demonstrate an improved technique for implementing logic circuits in light-sensitive chemical excitable media. The technique makes use of the constant-speed propagation of waves along defined channels in an excitable medium based on the Belousov-Z... Read More about Time-dependent wave selection for information processing in excitable media.

Different behaviour seen in flexible titanium dioxide sol-gel memristors dependent on the choice of electrode material (2012)
Book Chapter

Different behaviour seen in flexible titanium dioxide sol-gel memristors dependent on the choice of electrode materials (2012)
Presentation / Conference Contribution

Fabrication and modelling of titanium dioxide memristors (2012)
Presentation / Conference Contribution

Concept – including filamentary conduction in the mem-mon theory of memristance improves the model for ‘triangular’ memristors

Filamentary extension of the mem-con theory of memristance and its application to titanium dioxide sol-gel memristors (2012)
Preprint / Working Paper

Titanium dioxide sol-gel memristors have two different modes of operation, believed to be dependent on whether there is bulk memristance, i.e. memristance throughout the whole volume or filamentary memristance, i.e. memristance caused by the connecti... Read More about Filamentary extension of the mem-con theory of memristance and its application to titanium dioxide sol-gel memristors.

The effect of electrode size on memristor properties: an experimental and theoretical study (2012)
Preprint / Working Paper

The width of the electrodes is not included in the current phenomenological models of memristance, but is included in the memory-conservation (mem-con) theory of memristance. An experimental study of the effect of changing the top electrode width was... Read More about The effect of electrode size on memristor properties: an experimental and theoretical study.

Physarum attraction: Why slime mold behaves as cats do? (2012)
Journal Article

We discuss potential chemical substances responsible for attracting acellular slime mold Physarun polycephalum to valerian root. The contributes toward fundamental research into pheromones and chemo-attracts of primitive organisms such as slime molds... Read More about Physarum attraction: Why slime mold behaves as cats do?.

Cartesian genetic programming for memristive logic circuits (2012)
Presentation / Conference Contribution

In this paper memristive logic circuits are evolved using Cartesian Genetic Programming. Graphs comprised of implication logic (IMP) nodes are compared to more ubiquitous NAND circuitry on a number of logic circuit problems and a robotic control task... Read More about Cartesian genetic programming for memristive logic circuits.

Cellular automaton supercollider: An abstract model (2012)
Presentation / Conference Contribution

A virtual accelerator that smashes together glider-like particles inside a cellular automaton can perform computations, say researchers. By KFC [http://www.technologyreview.com/printer_friendly_blog.aspx?id=26808]

Towards an intelligent distributed conveyor (2012)
Journal Article

Manipulation, orientation and handling of components, subparts and finished products is an essential element of any industrial process, which attracts substantial portion of resources and infrastructure. A classic manipulation, e.g. robot arms, is no... Read More about Towards an intelligent distributed conveyor.

The world's colonization and trade routes formation as imitated by slime mould (2012)
Journal Article

The plasmodium of Physarum polycephalum is renowned for spanning sources of nutrients with networks of protoplasmic tubes. The networks transport nutrients and metabolites across the plasmodium's body. To imitate a hypothetical colonization of the wo... Read More about The world's colonization and trade routes formation as imitated by slime mould.

Complex dynamics of elementary cellular automata emerging from chaotic rules (2012)
Journal Article

We show techniques of analyzing complex dynamics of cellular automata (CA) with chaotic behavior. CA are well-known computational substrates for studying emergent collective behavior, complexity, randomness and interaction between order and chaotic s... Read More about Complex dynamics of elementary cellular automata emerging from chaotic rules.

Computing with liquid crystal fingers: Models of geometric and logical computation (2011)
Journal Article

When a voltage is applied across a thin layer of cholesteric liquid crystal, fingers of cholesteric alignment can form and propagate in the layer. In computer simulation, based on experimental laboratory results, we demonstrate that these cholesteric... Read More about Computing with liquid crystal fingers: Models of geometric and logical computation.

Comparison of ant-inspired gatherer allocation approaches using memristor-based environmental models (2011)
Presentation / Conference Contribution

Memristors are used to compare three gathering techniques in an already-mapped environment where resource locations are known. The All Site model, which apportions gatherers based on the modeled memristance of that path, proves to be good at increasi... Read More about Comparison of ant-inspired gatherer allocation approaches using memristor-based environmental models.

Logical and arithmetic circuits in Belousov-Zhabotinsky encapsulated disks (2011)
Journal Article

Excitation waves on a subexcitable Belousov-Zhabotinsky (BZ) substrate can be manipulated by chemical variations in the substrate and by interactions with other waves. Symbolic assignment and interpretation of wave dynamics can be used to perform log... Read More about Logical and arithmetic circuits in Belousov-Zhabotinsky encapsulated disks.

Neuromorphic computing with memristors: Preliminary experimental results (2011)
Presentation / Conference Contribution

Individual memristors have been observed demonstrating neuron-like spiking patterns. It has been shown
elsewhere that memristors provide superior modelling for neurons then the Hodgkin-Huxley model. Due to
these results we expect memristors to be e... Read More about Neuromorphic computing with memristors: Preliminary experimental results.

On computing in fine-grained compartmentalised Belousov-Zhabotinsky medium (2011)
Journal Article

We introduce results of computer experiments on information processing in a hexagonal array of vesicles filled with Belousov-Zhabotinsky (BZ) solution in a sub-excitable mode. We represent values of Boolean variables by excitation wave-fragments and... Read More about On computing in fine-grained compartmentalised Belousov-Zhabotinsky medium.

Vesicle computers: Approximating a Voronoi diagram using Voronoi automata (2011)
Journal Article

Irregular arrangements of vesicles filled with excitable and precipitating chemical systems are imitated by Voronoi automata - finite-state machines defined on a planar Voronoi diagram. Every Voronoi cell takes four states: resting, excited, refracto... Read More about Vesicle computers: Approximating a Voronoi diagram using Voronoi automata.

Aluminium electrodes effect the operation of titanium oxide sol-gel memristors (2011)
Preprint / Working Paper

By a comparison between memristors made with aluminium and gold electrodes, this letter demonstrates that aluminium electrodes are an essential component of the TiO$_2$ sol-gel flexible memristor . Both slow varying `analogue' and sudden switching `d... Read More about Aluminium electrodes effect the operation of titanium oxide sol-gel memristors.