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52. Recognition of Greek Alphabet Characters with Memristive Neuromorphic Circuit

Author

Chatzinikolaou, Theodoros Panagiotis, primary, Chatzipaschalis, Ioannis K., additional, Tsakalos, Karolos-Alexandros, additional, Karamani, Rafailia-Eleni, additional, Fyrigos, Iosif-Angelos, additional, Kitsios, Stavros, additional, Bousoulas, Panagiotis, additional, Tsoukalas, Dimitris, additional, and Sirakoulis, Georgios Ch., additional

Published
2023
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59. Computers from Plants We Never Made: Speculations

Author

Adamatzky, Andrew, Harding, Simon, Erokhin, Victor, Mayne, Richard, Gizzie, Nina, Baluška, Frantisek, Mancuso, Stefano, Sirakoulis, Georgios Ch., Zelinka, Ivan, Series editor, Adamatzky, Andrew, Series editor, Chen, Guanrong, Series editor, and Stepney, Susan, editor

Published
2018
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60. Quantum Walks on Quantum Cellular Automata Lattices: Towards a New Model for Quantum Computation

Author

Karafyllidis, Ioannis G., Sirakoulis, Georgios Ch., Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Mauri, Giancarlo, editor, El Yacoubi, Samira, editor, Dennunzio, Alberto, editor, Nishinari, Katsuhiro, editor, and Manzoni, Luca, editor

Published
2018
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61. Hardware Implementation of a Biomimicking Hybrid CA

Author

Madikas, Menelaos, Tsompanas, Michail-Antisthenis, Dourvas, Nikolaos, Sirakoulis, Georgios Ch., Jones, Jeff, Adamatzky, Andrew, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Mauri, Giancarlo, editor, El Yacoubi, Samira, editor, Dennunzio, Alberto, editor, Nishinari, Katsuhiro, editor, and Manzoni, Luca, editor

Published
2018
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62. A Fuzzy Logic Inspired Cellular Automata Based Model for Simulating Crowd Evacuation Processes

Author

Gavriilidis, Prodromos, Gerakakis, Ioannis, Georgoudas, Ioakeim G., Trunfio, Giuseppe A., Sirakoulis, Georgios Ch., Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Wyrzykowski, Roman, editor, Dongarra, Jack, editor, Deelman, Ewa, editor, and Karczewski, Konrad, editor

Published
2018
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65. Memristor-Based Logic Circuits

Author

Vourkas, Ioannis, Sirakoulis, Georgios Ch., Zelinka, Ivan, Series editor, Adamatzky, Andrew, Series editor, Chen, Guanrong, Series editor, Vourkas, Ioannis, and Sirakoulis, Georgios Ch.

Published
2016
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69. Memristor Fundamentals

Author

Vourkas, Ioannis, Sirakoulis, Georgios Ch., Zelinka, Ivan, Series editor, Adamatzky, Andrew, Series editor, Chen, Guanrong, Series editor, Vourkas, Ioannis, and Sirakoulis, Georgios Ch.

Published
2016
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70. Memristor Modeling

Author

Vourkas, Ioannis, Sirakoulis, Georgios Ch., Zelinka, Ivan, Series editor, Adamatzky, Andrew, Series editor, Chen, Guanrong, Series editor, Vourkas, Ioannis, and Sirakoulis, Georgios Ch.

Published
2016
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72. Gait analysis comparison between manual marking, 2D pose estimation algorithms, and 3D marker-based system

Author

Menychtas, Dimitrios, primary, Petrou, Nikolaos, additional, Kansizoglou, Ioannis, additional, Giannakou, Erasmia, additional, Grekidis, Athanasios, additional, Gasteratos, Antonios, additional, Gourgoulis, Vassilios, additional, Douda, Eleni, additional, Smilios, Ilias, additional, Michalopoulou, Maria, additional, Sirakoulis, Georgios Ch., additional, and Aggelousis, Nikolaos, additional

Published
2023
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75. A TCAD Model for Silicon Nitride Based Memristive Devices

Author

Stavroulakis, Emmanouil, primary, Vasileiadis, Nikolaos, additional, Mavropoulis, Alexandros, additional, Chatzipaschalis, Ioannis K., additional, Tsipas, Evangelos, additional, Rallis, Konstantinos, additional, Vourkas, Ioannis, additional, Dimitrakis, Panagiotis, additional, and Sirakoulis, Georgios Ch., additional

Published
2023
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79. Cellular Automata Ants

Author

Bitsakidis, Nikolaos P., Dourvas, Nikolaos I., Chatzichristofis, Savvas A., Sirakoulis, Georgios Ch., Zelinka, Ivan, Series editor, Adamatzky, Andrew, Series editor, and Chen, Guanrong, Series editor

Published
2017
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85. CA Crowd Modeling for a Retirement House Evacuation with Guidance

Author

Spartalis, Eleftherios, Georgoudas, Ioakeim G., Sirakoulis, Georgios Ch., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Wąs, Jarosław, editor, Sirakoulis, Georgios Ch., editor, and Bandini, Stefania, editor

Published
2014
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86. Shortest Path Computing Using Memristor-Based Circuits and Cellular Automata

Author

Stathis, Dimitrios, Vourkas, Ioannis, Sirakoulis, Georgios Ch., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Wąs, Jarosław, editor, Sirakoulis, Georgios Ch., editor, and Bandini, Stefania, editor

Published
2014
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87. Cellular Automata Model with Game Theory for Power Management of Hybrid Renewable Energy Smart Grids

Author

Chatziagorakis, Prodromos, Elmasides, Constantinos, Sirakoulis, Georgios Ch., Karafyllidis, Ioannis, Andreadis, Ioannis, Georgoulas, Nikolaos, Giaouris, Damianos, Papadopoulos, Athanasios I., Ziogou, Chrysovalantou, Ipsakis, Dimitris, Papadopoulou, Simira, Seferlis, Panos, Stergiopoulos, Fotis, Voutetakis, Paris, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Wąs, Jarosław, editor, Sirakoulis, Georgios Ch., editor, and Bandini, Stefania, editor

Published
2014
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88. Introducing Chemotaxis to a Mobile Robot

Author

Semertzidou, Christina, Dourvas, Nikolaos I., Tsompanas, Michail-Antisthenis, Adamatzky, Andrew, Sirakoulis, Georgios Ch., Rannenberg, Kai, Editor-in-chief, Sakarovitch, Jacques, Series editor, Goedicke, Michael, Series editor, Tatnall, Arthur, Series editor, Neuhold, Erich J., Series editor, Pras, Aiko, Series editor, Tröltzsch, Fredi, Series editor, Pries-Heje, Jan, Series editor, Whitehouse, Diane, Series editor, Reis, Ricardo, Series editor, Furnell, Steven, Series editor, Furbach, Ulrich, Series editor, Gulliksen, Jan, Series editor, Rauterberg, Matthias, Series editor, Iliadis, Lazaros, editor, and Maglogiannis, Ilias, editor

Published
2016
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92. Towards a Slime Mould-FPGA Interface

Author

Mayne, Richard, Tsompanas, Michail-Antisthenis, Sirakoulis, Georgios Ch., Adamatzky, Andrew, Zelinka, Ivan, Series editor, Adamatzky, Andrew, Series editor, and Chen, Guanrong, Series editor

Published
2016
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93. Enhanced Multi-parameterized Cellular Automaton Model for Crowd Evacuation: The Case of a University Building

Author

Tsorvas, Dimitrios, Georgoudas, Ioakeim G., Seredynski, Franciszek, Sirakoulis, Georgios Ch., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, El Yacoubi, Samira, editor, Wąs, Jaroslaw, editor, and Bandini, Stefania, editor

Published
2016
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94. Cutting the Firing Squad Synchronization

Author

Dimitriadis, Antonios, Kutrib, Martin, Sirakoulis, Georgios Ch., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, El Yacoubi, Samira, editor, Wąs, Jaroslaw, editor, and Bandini, Stefania, editor

Published
2016
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95. GPU and FPGA Parallelization of Fuzzy Cellular Automata for the Simulation of Wildfire Spreading

Author

Ntinas, Vasileios G., Moutafis, Byron E., Trunfio, Giuseppe A., Sirakoulis, Georgios Ch., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Wyrzykowski, Roman, editor, Deelman, Ewa, editor, Dongarra, Jack, editor, Karczewski, Konrad, editor, Kitowski, Jacek, editor, and Wiatr, Kazimierz, editor

Published
2016
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96. CBRAM-Based Bio-Inspired Circuit for the Emulation and Treatment of the Parkinson’s Disease

Author

Chatzipaschalis, Ioannis K., Tsipas, Evangelos, Fyrigos, Iosif-Angelos, Rubio, Antonio, and Sirakoulis, Georgios Ch.

Abstract

In recent years, the intrinsic neuromorphic properties of memristor devices have led to their extensive use in brain-inspired circuits and systems. The development of brain-inspired (nano)circuits incorporating memristors has the potential to revolutionize the field of neuromorphic engineering. This brief presents a novel circuit design of Basal Ganglia (BG), with the Memristor-Based Oscillator (MBO), which takes a significant step forward in this direction. The MBO circuit utilizes low-power fitted Conductive-Bridging RAM (CBRAM) devices with distinct neuromorphic features, making it a promising tool for both research and treatment of neurodegenerative diseases such as Parkinson’s Disease (PD). Additionally, the circuit incorporates modeled synapses exhibiting both excitatory and inhibitory behavior and is calibrated to match the performance of fabricated devices. The MBO circuit is well-suited for incorporation in brain-inspired networks and can accurately replicate neuronal behavior, resulting to a low-cost emulator for PD and other neurodegenerative diseases compared with other hardware approaches. In this brief, the Parkinsonian Network (PN) was replicated and then the Deep Brain Stimulation (DBS) methodology was applied, showing promising results for the development of memristor-based brain-inspired nanocircuits.

Published
2024
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97. An All-Polarization, Beamforming, and DoA Ready, Г–Dipole Antenna Array

Author

Arnaoutoglou, Dimitrios G., Kyriakou, Antigone-Aikaterini G., Kaifas, Theodoros N. F., Sirakoulis, Georgios Ch., and Kyriacou, George A.

Abstract

A novel miniature all-polarization $\Gamma $ antenna array for demanding 5G and the Internet of Things (IoT) applications is proposed. The antenna is designed to be able to perform direction of arrival (DoA) and beamforming keeping the antenna’s footprint as minimal as possible to fit in or wrapped around any IoT device. It is a nonuniform square array comprised of novel right-corner dipoles which are mirror-placed to additionally allow all polarization properties. These properties are inherited from its approximate equivalence to a cross-dipole antenna with additional features and flexibility. An analytical mathematical formulation is presented resulting in a closed form for the $\Gamma $ –dipole as well as the four dipoles array. Numerical simulations proved the antenna performance and verified that all of its features are approximately retained even when it is curved. The antenna is prototyped in both an improvised wire dipole (planar or curved) and as printed on an FR-4 substrate. The measured results confirmed the analytical and numerical ones regarding the antenna all-polarization, beamforming, and DoA features.

Published
2024
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100. Clinical Validation of Estimated Muscle Activations during Phases of Elderly Gait.

Author

Gkrekidis, Athanasios, Giarmatzis, Georgios, Menychtas, Dimitrios, Karakasis, Evangelos, Gourgoulis, Vassilios, Michalopoulou, Maria, Smilios, Ilias, Douda, Helen T., Sirakoulis, Georgios Ch., and Aggelousis, Nikolaos

Subjects
GAIT in humans, OLDER people physiology, MUSCLE physiology, ELECTROMYOGRAPHY, TREADMILL exercise, MUSCULOSKELETAL system
Abstract

This study validated muscle activation estimations generated by OpenSim during the gait of elderly fallers. Ten healthy elderly participants walked on an instrumented treadmill, monitored by motion capture, force platforms, and 12 surface EMG sensors. Static optimization was used to calculate muscle activations, evaluated through cosine similarity, comparing them with EMG signals from 12 muscles of the right leg. Findings revealed varied similarity levels across muscles and gait phases. During stance phase, tibialis anterior (TIBA), peroneus longus (PERL), soleus (SOL), gastrocnemius lateralis (GASL), semitendinosus (SEMI), tensor fasciae latae (TFL), and rectus femoris (RECF) demonstrated poor similarity (cosim < 0.6), while gluteus medius (GMED), biceps femoris long head (BFLH), and vastus lateralis (VL) exhibited moderate similarity (0.6 ≤ cosim ≤ 0.8), and gluteus maximus (GMAX) and vastus medialis (VASM) displayed high similarity (cosim > 0.8). During the swing phase, only SOL demonstrated inadequate similarity, while GASL, GMAX, GMED, BFLH, SEMI, TFL, RECF, and VASL exhibited moderate similarity, and TIBA, PERL, and VASM showed high similarity. Comparing the different 10% intervals of the gait cycle generally produced more favorable similarity results. For most of the muscles and intervals, good agreement was found. Moderate agreement was estimated in the cases of TIBA (0–10%), PERL (60–70%), GASL (60–70%), TFL (10–20%), RECF (0–10%, 80–100%), and GMED (50–60%). Bad agreement was found in the cases of SOL (60–70%), GASL (0–10%), and TFL (0–10%). In conclusion, the study's validation outcomes were acceptable in most cases, underlining the potential for user-friendly musculoskeletal modeling routines to study muscle output during elderly gait. [ABSTRACT FROM AUTHOR]

Published
2023
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