Results 41 to 50 of about 18,397 (132)

Detecting series periodicity with horizontal visibility graphs [PDF]

, 2010
The horizontal visibility algorithm has been recently introduced as a mapping between time series and networks. The challenge lies in characterizing the structure of time series (and the processes that generated those series) using the powerful tools of ...
ANGEL NUÑEZ, BARTOLO LUQUE, Elsner J. B., EUSEBIO VALERO, JOSE PATRICIO GÓMEZ, LUCAS LACASA, Xu X.   +6 more
core   +4 more sources

Reliable AI Platform for Monitoring BCI Caused Brain Injury and Providing Real‐Time Protection

Advanced Science, EarlyView.
BrainGuard enables real‐time and interpretable assessment of brain injury caused by brain computer interface (BCI). Using feature‐based Gaussian process (GP) emulators trained on limited biomechanical data, it efficiently predicts full‐field strain and constructs patient‐specific digital brain twins to support clinical diagnosis and long‐term BCI ...
Chufan He, Yanjun Ding, Timon Rabczuk, Chensen Ding   +3 more
wiley   +1 more source

Symmetric Gibbs measures [PDF]

, 1995
We prove that certain Gibbs measures on subshifts of finite type are nonsingular and ergodic for certain countable equivalence relations, including the orbit relation of the adic transformation (the same as equality after a permutation of finitely many ...
Petersen, Karl, Schmidt, Klaus
core   +4 more sources

Device Performance of Emerging Photovoltaic Materials (Version 6)

Advanced Energy Materials, EarlyView.
Efficiency of single junction perovskite (circles), organic (hexagons), dye sensitized (pentagons), kesterite (diamonds), Sb2Se3 (right triangle), and AgBiS2 (left triangles) solar cells at emerging‐pv.org over the last decade. ABSTRACT This 6th annual Emerging PV Report surveys peer‐reviewed advances since August 2024 across perovskite, organic ...
Osbel Almora, Agustin O. Alvarez, Derya Baran, Carlos I. Cabrera, Luigi A. Castriotta, Bruno Ehrler, Sule Erten‐Ela, Kenjiro Fukuda, Fei Guo, Jens Hauch, Anita W.Y. Ho‐Baillie, T. Jesper Jacobsson, Rene A. J. Janssen, Thomas Kirchartz, Maria A. Loi, Richard R. Lunt, Xavier Mathew, Jie Min, David B. Mitzi, Mohammad K. Nazeeruddin, Ana F. Nogueira, Ulrich W. Paetzold, Nam‐Gyu Park, Barry P. Rand, Henry Snaith, Takao Someya, Christian Sprau, Lulu Sun, Karen Forberich, Christoph J. Brabec   +29 more
wiley   +1 more source

On the data-driven description of lattice materials mechanics

Results in Engineering
In the emerging field of mechanical metamaterials, using periodic lattice structures as a primary ingredient is relatively frequent. However, the choice of aperiodic lattices in these structures presents unique advantages regarding failure, e.g ...
Ismael Ben-Yelun, Luis Irastorza-Valera, Luis Saucedo-Mora, Francisco Javier Montáns, Francisco Chinesta   +4 more
doaj   +1 more source

Triboelectric Tactile Transducers for Neuromorphic Sensing and Synaptic Emulation: Materials, Architectures, and Interfaces

Advanced Energy and Sustainability Research, EarlyView.
Triboelectric nanogenerators are vital for sustainable energy in future technologies such as wearables, implants, AI, ML, sensors and medical systems. This review highlights improved TENG neuromorphic devices with higher energy output, better stability, reduced power demands, scalable designs and lower costs.
Ruthran Rameshkumar, Arunkumar Chandrasekhar, Poongundran Selvaprabhu   +2 more
wiley   +1 more source

Altered neural avalanche spreading in people with drug-resistant epilepsy✰

NeuroImage
Objective: To characterize a peculiar “EEG endophenotype” of drug-resistant epilepsy (DRE) through the graph theory characterization of avalanche spatiotemporal spreading properties.
B.M. Sancetta, M.A.G. Matarrese, L. Ricci, J. Lanzone, G. Lippa, M. Nesta, F. Zappasodi, M. Brunetti, V. Di Lazzaro, M. Tombini, G. Assenza   +10 more
doaj   +1 more source

Tiling Problems on Baumslag-Solitar groups

, 2013
We exhibit a weakly aperiodic tile set for Baumslag-Solitar groups, and prove that the domino problem is undecidable on these groups. A consequence of our construction is the existence of an arecursive tile set on Baumslag-Solitar groups.Comment: In ...
Aubrun, Nathalie, Kari, Jarkko
core   +2 more sources

Automatic Determination of Quasicrystalline Patterns from Microscopy Images

Advanced Intelligent Discovery, EarlyView.
This work introduces a user‐friendly machine learning tool to automatically extract and visualize quasicrystalline tiling patterns from atomically resolved microscopy images. It uses feature clustering, nearest‐neighbor analysis, and support vector machines. The method is broadly applicable to various quasicrystalline systems and is released as part of
Tano Kim Kender, Marco Corrias, Cesare Franchini   +2 more
wiley   +1 more source

DynaKG: Dynamic Knowledge Graph Attention With Learnable Temporal Decay for Recommendation

IEEE Access
Knowledge graph-based recommendation systems excel at capturing semantic relationships but struggle to model temporal dynamics in evolving user preferences, which is a critical limitation for real-world applications where user behaviors and item ...
Bwalya Chomba, Patrick Mukala, Nicanor Mayumu, Saif Ur Rehman Khan   +3 more
doaj   +1 more source