Results 81 to 90 of about 16,068 (283)

Superior Adhesion of Monolayer Amorphous Carbon to Copper

Advanced Materials, EarlyView.
The adhesion energy of monolayer amorphous carbon on copper substrate is 85 J m−2, 13 times higher than that of graphene due to covalent‐like bonding between the sp2 carbon structure to copper. X‐ray photoelectron spectroscopy (XPS), near‐edge X‐ray absorption (NEXAFS), and (density functional theory) DFT calculations are used to elucidate the ...
Hongji Zhang, Artem K. Grebenko, Konstantin V. Iakoubovskii, Hanning Zhang, Ruslan Yamaletdinov, Anna Makarova, Alexander Fedorov, Rejaul SK, Ranjith Shivajirao, Zheng Jue Tong, Sergey Grebenchuk, Ugur Karadeniz, Lu Shi, Denis V. Vyalikh, Ya He, Andrei Starkov, Alena A. Alekseeva, Chuan Chu Tee, Carlo Mendoza Orofeo, Junhao Lin, Kazutomo Suenaga, Michel Bosman, Maciej Koperski, Bent Weber, Kostya S. Novoselov, Oleg V. Yazyev, Chee‐Tat Toh, Barbaros Özyilmaz   +27 more
wiley   +1 more source

Residual Stresses and Micro‐voids Propel Metal Diffusion for Filament‐Based Memristors

Advanced Science, EarlyView.
Introducing non‐reactive nitrogen during silver sputtering enables low‐voltage (<60 mV) switching in memristors via nano‐void formation and residual stresses in the gigapascal range. This promotes sub‐micron filamentation and neuromorphic behaviors, including multi‐peak synaptic responses.
Joel Y.Y. Loh, Jason Yuan, Samuel Moor‐Smith, Adam Glustein, Gloria Vytas, Will Taylor, Andres Lombo, Richard J. Curry, Nazir Pyarali Kherani   +8 more
wiley   +1 more source

Forward Table-Based Presynaptic Event-Triggered Spike-Timing-Dependent Plasticity

, 2016
Spike-timing-dependent plasticity (STDP) incurs both causal and acausal synaptic weight updates, for negative and positive time differences between pre-synaptic and post-synaptic spike events.
Augustine, Charles, Cauwenberghs, Gert, Detorakis, Georgios, IEEE, Joshi, Siddharth, Neftci, Emre, Paul, Somnath, Pedroni, Bruno U, Sheik, Sadique   +8 more
core   +1 more source

Autonomous emergence of connectivity assemblies via spike triplet interactions.

PLoS Computational Biology, 2020
Non-random connectivity can emerge without structured external input driven by activity-dependent mechanisms of synaptic plasticity based on precise spiking patterns.
Lisandro Montangie, Christoph Miehl, Julijana Gjorgjieva   +2 more
doaj   +1 more source

ECG Classification Algorithm Based on STDP and R-STDP Neural Networks for Real-Time Monitoring on Ultra Low-Power Personal Wearable Devices [PDF]

IEEE Transactions on Biomedical Circuits and Systems, 2019
This paper presents a novel ECG classification algorithm for inclusion as part of real-time cardiac monitoring systems in ultra low-power wearable devices. The proposed solution is based on spiking neural networks which are the third generation of neural
A. Amirshahi, Matin Hashemi
semanticscholar   +1 more source

Implementing Multimodal Hardware Security with 2D α‐In2Se3 Ferroelectric Transistor

Advanced Science, EarlyView.
A multimodal secure transistor‐integrated in‐memory sensing and computing architecture is demonstrated by leveraging its electronic and optoelectronic synaptic behaviors. Key security primitives, such as anticounterfeiting, watermarking, logic locking, and camouflaging, are implemented within a compact single‐transistor structure, providing a scalable ...
Xinwei Zhang, Jiachao Zhou, Yishu Zhang, Jian Chai, Yongqing Bai, Hailiang Wang, Qian He, Xi Wang, Lin Wang, Yuda Zhao, Yang Xu, Bin Yu   +11 more
wiley   +1 more source

Dopamine modulates Spike Timing-Dependent Plasticity and action potential properties in CA1 pyramidal neurons of acute rat hippocampal slices

Frontiers in Synaptic Neuroscience, 2011
Spike Timing-Dependent Plasticity (STDP) is a cellular model of hebbian synaptic plasticity which is believed to underlie memory formation. In an attempt to establish a STDP paradigm in CA1 of acute hippocampal slices from juvenile rats (P15-20), we ...
Elke eEdelmann, Volkmar eLessmann
doaj   +1 more source

Refinement and Pattern Formation in Neural Circuits by the Interaction of Traveling Waves with Spike-Timing Dependent Plasticity. [PDF]

PLoS Computational Biology, 2015
Traveling waves in the developing brain are a prominent source of highly correlated spiking activity that may instruct the refinement of neural circuits.
James E M Bennett, Wyeth Bair
doaj   +1 more source

A STDP-based Encoding Algorithm for Associative and Composite Data [PDF]

arXiv, 2021
Spike-timing-dependent plasticity(STDP) is a biological process of synaptic modification caused by the difference of firing order and timing between neurons. One of the neurodynamical roles of STDP is to form a macroscopic geometrical structure in the neuronal state space in response to a periodic input.
arxiv  

An Ultrathin Optoelectronic Memristor with Dual‐Functional Photodetector and Optical Synapse Behaviors for Neuromorphic Vision

Advanced Electronic Materials, EarlyView.
An optoelectronic memristor based on an ultrathin periodic heterostructure is proposed. The unique structure enables the integration of multiple functionalities, including those of a photodetector, electric synapse, and optical synapse. This work provides a framework to design ultrathin, multifunctional, and energy‐efficient neuromorphic chips for ...
Lilan Zou, Junru An, Haonan Xu, Guizhen Wang, Shiwei Lin   +4 more
wiley   +1 more source