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Evolving boolean networks on tunable fitness landscapes (2012)
Journal Article
Bull, L. (2012). Evolving boolean networks on tunable fitness landscapes. IEEE Transactions on Evolutionary Computation, 16(6), 817-828. https://doi.org/10.1109/TEVC.2011.2173578

This paper presents an abstract, tunable model by which to explore aspects of artificial genetic regulatory networks and their design by simulated evolution. The random Boolean network formalism is combined with the NK and $NKCS$ models of fitness la... Read More about Evolving boolean networks on tunable fitness landscapes.

Evolution of plastic learning in spiking networks via memristive connections (2012)
Journal Article
Howard, G., Howard, D., Gale, E., Bull, L., De Lacy Costello, B., & Adamatzky, A. (2012). Evolution of plastic learning in spiking networks via memristive connections. IEEE Transactions on Evolutionary Computation, 16(5), 711-729. https://doi.org/10.1109/TEVC.2011.2170199

This paper presents a spiking neuroevolutionary system which implements memristors as plastic connections, i.e., whose weights can vary during a trial. The evolutionary design process exploits parameter self-adaptation and variable topologies, allowi... Read More about Evolution of plastic learning in spiking networks via memristive connections.

A diagnostic apparatus for analysing a sample to diagnose disease (2012)
Patent
Ratcliffe, N. M., de Lacy Costello, B., Ewen, R., & Probert, C. (2012). A diagnostic apparatus for analysing a sample to diagnose disease. EP2502065 A2 (text from WO2011061308A2)

A diagnostic apparatus (10) for analysing a sample to diagnose disease, the apparatus (10) comprising: a separating element (16) for separating gas derived from the sample into component parts; a sensor arrangement (18) coupled to the separating elem... Read More about A diagnostic apparatus for analysing a sample to diagnose disease.

Creating unorganised machines from memristors (2012)
Presentation / Conference
Howard, G. D., Bull, L., Costello, B. D. L., & Adamatzky, A. (2012, September). Creating unorganised machines from memristors. Paper presented at ICNAAM 2012: International Conference of Numerical Analysis and Applied Mathematics, Kos, Greece

Manipulating objects with gliders in cellular automata (2012)
Presentation / Conference
Georgilas, I., Adamatzky, A., & Melhuish, C. (2012, August). Manipulating objects with gliders in cellular automata. Paper presented at Automation Science and Engineering (CASE), 2012 IEEE International Conference on, Seoul, Korea

Micro-scale manipulation of objects is a growing requirement in specialised industries, especially those related to assembly of fragile micro-components. Widely implemented techniques in robotics and automation do not always cope with the delicate na... Read More about Manipulating objects with gliders in cellular automata.

Schlauschleimer in Reichsautobahnen: Slime mould imitates motorway network in Germany (2012)
Journal Article
Schubert, T., & Adamatzky, A. (2012). Schlauschleimer in Reichsautobahnen: Slime mould imitates motorway network in Germany. Kybernetes, 41(7), 1050-1071. https://doi.org/10.1108/03684921211257865

Purpose: The purpose of this paper is to develop experimental laboratory biological techniques for approximation of principle transport networks, optimizing transport links, and developing optimal solutions to current transport problems. It also aims... Read More about Schlauschleimer in Reichsautobahnen: Slime mould imitates motorway network in Germany.

On architectures of circuits implemented in simulated Belousov-Zhabotinsky droplets (2012)
Journal Article
Adamatzky, A., Holley, J., Dittrich, P., Gorecki, J., De Lacy Costello, B., Zauner, K. P., & Bull, L. (2012). On architectures of circuits implemented in simulated Belousov-Zhabotinsky droplets. BioSystems, 109(1), 72-77. https://doi.org/10.1016/j.biosystems.2011.12.007

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
Costello, B. D. L., Stevens, W. M., Adamatzky, A., Jahan, I., & de Lacy Costello, B. (2012). Time-dependent wave selection for information processing in excitable media. Physical Review E, 85(6), https://doi.org/10.1103/PhysRevE.85.066129

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
Gale, E., Pearson, D., Kitson, S., Adamatzky, A., & de Lacy Costello, B. (2012). Different behaviour seen in flexible titanium dioxide sol-gel memristors dependent on the choice of electrode material. In J. Heber, D. Schlom, Y. Tokura, R. Waser, & M. Wuttig (Eds.), Technical Digest of Frontiers in Electronic Materials (577-578). Germany: Nature Conferences & Wiley VCH

The memory-conservation model of memristance (2012)
Book Chapter
Gale, E. (2012). The memory-conservation model of memristance. In J. Heber, D. Schlom, Y. Tokura, R. Waser, & M. Wutting (Eds.), Technical Digest of Frontiers in Electronic Materials (538-539). Germany: Nature Conferences & Wiley VCH

The memory-conservation model of memristance (2012)
Presentation / Conference
Gale, E. (2012, June). The memory-conservation model of memristance. Poster presented at Frontiers in Electronic Materials: Correlation Effects and Memristive Phenomena, Aachen, Germany

Fabrication and modelling of titanium dioxide memristors (2012)
Presentation / Conference
Gale, E., Adamatzky, A., & de Lacy Costello, B. (2012, June). Fabrication and modelling of titanium dioxide memristors. Poster presented at Royal Society of Chemistry, Younger Members Symposium 2012, Nottingham, UK

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

Production system rules as protein complexes from genetic regulatory networks: An initial study (2012)
Journal Article
Bull, L. (2012). Production system rules as protein complexes from genetic regulatory networks: An initial study. Evolutionary Intelligence, 5(2), 59-67. https://doi.org/10.1007/s12065-012-0078-3

This short paper introduces a new way by which to design production system rules. An indirect encoding scheme is presented which views such rules as protein complexes produced by the temporal behaviour of an artificial genetic regulatory network. Thi... Read More about Production system rules as protein complexes from genetic regulatory networks: An initial study.

The effect of electrode size on memristor properties: an experimental and theoretical study (2012)
Working Paper
Gale, E., de Lacy Costello, B., & Adamatzky, A. The effect of electrode size on memristor properties: an experimental and theoretical study. Bristol

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.

Filamentary extension of the mem-con theory of memristance and its application to titanium dioxide sol-gel memristors (2012)
Working Paper
Gale, E., de Lacy Costello, B., & Adamatzky, A. Filamentary extension of the mem-con theory of memristance and its application to titanium dioxide sol-gel memristors. Bristol

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.