Buscar en RiuNet

Listar

Todo RiuNet

Mi cuenta

Acceder

Ayuda RiuNet

Admin. UPV

Listar por palabra clave "Laplacian"

Mostrando ítems 1-6 de 6

Active concentric ring electrode for non-invasive detection of intestinal myoelectric signals

Prats Boluda, Gema; Garcia Casado, Francisco Javier; Martínez De Juan, José Luís; Ye Lin, Yiyao (Elsevier, 2011-05)

[EN] Although the surface electroenterogram (EEnG) is a weak signal contaminated by strong physiological interference, such as ECG and respiration, abdominal surface recordings of the EEnG could provide a non-invasive ...
Comprehensive Optimization of the Tripolar Concentric Ring Electrode Based on Its Finite Dimensions Model and Confirmed by Finite Element Method Modeling

Makeyev, Oleksandr; Ye Lin, Yiyao; Prats-Boluda, Gema; Garcia-Casado, Javier (MDPI AG, 2021-08-31)

[EN] The optimization performed in this study is based on the finite dimensions model of the concentric ring electrode as opposed to the negligible dimensions model used in the past. This makes the optimization problem ...
Consensus over Multiplex Network To Calculate User Influence in Social Networks

Rebollo Pedruelo, Miguel; Del Val Noguera, Elena; Carrascosa Casamayor, Carlos; Palomares Chust, Alberto; Pedroche Sánchez, Francisco (Interlude, 2013)

[EN] User influence determines how the information is transmitted. Most of the current methods need to consider the complete network and, if it changes, the calculations have to be repeated from the scratch. This work ...
Evaluation of Bipolar, Tripolar, and Quadripolar Laplacian Estimates of Electrocardiogram via Concentric Ring Electrodes

Garcia-Casado, Javier; Ye Lin, Yiyao; Prats-Boluda, Gema; Makeyev, Oleksandr (MDPI AG, 2019-09-01)

[EN] Surface Laplacian estimates via concentric ring electrodes (CREs) have proven to enhance spatial resolution compared to conventional disc electrodes, which is of great importance for P-wave analysis. In this study, ...
On a connection between the N-dimensional fractional Laplacian and 1-D fractional operators on lattices

Lizama, Carlos; Murillo Arcila, Marina (Elsevier, 2022-07-01)

[EN] We show the remarkable fact that the nonlocal property of the discrete N dimensional fractional Laplacian acting in the second variable of the lattice N x Z(N) can be exchanged with an equivalent memory corresponding ...
Validating the Comparison Framework for the Finite Dimensions Model of Concentric Ring Electrodes Using Human Electrocardiogram Data

Makeyev, Oleksandr; Musngi, Mark; Moore, Larry; Ye Lin, Yiyao; Prats-Boluda, Gema; Garcia-Casado, Javier (MDPI AG, 2019-10-12)

[EN] While progress has been made in design optimization of concentric ring electrodes maximizing the accuracy of the surface Laplacian estimation, it was based exclusively on the negligible dimensions model of the electrode. ...