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Mostrando ítems 1-10 de 10

Characterization of complex fractionated atrial electrograms by Sample Entropy: An international multi-center study

Cirugeda Roldán, Eva María; Novak, Daniel; Kremen, Vaclav; Cuesta Frau, David; Keller, Matthias; Luik, Armin; Srutova, Martina (MDPI, 2015-11)

Atrial fibrillation (AF) is the most commonly clinically-encountered arrhythmia. Catheter ablation of AF is mainly based on trigger elimination and modification of the AF substrate. Substrate mapping ablation of complex ...
Combined effect of turbulence and aerosol on free-space optical links

Libich, Jiri; Perez, Joaquin; Zvanovec, Stanislav; Ghassemlooy, Zabih; Nebuloni, Roberto; Capsoni, Carlo (The Optical Society, 2017-01-10)

[EN] Despite the benefits of free-space optical (FSO) communications, their full utilization is limited by the influence of atmospheric weather conditions, such as fog, turbulence, smoke, snow, etc. In urban environments, ...
Demonstration of M-QAM OFDM bidirectional 60/25 GHz transmission over 10 km Fiber, 100 m FSO and 2 m radio seamless heterogeneous fronthaul link

Vallejo, Luis; Ortega Tamarit, Beatriz; Mora Almerich, José; Nguyen, D.-N.; Guerra, C.; Bohata, J.; Spacil, J.; Zvanovec, S. (Elsevier, 2023-05)

[EN] In this paper, we demonstrate the experimental transmission of 16-and 64-quadrature amplitude modulation (QAM) Long Term Evolution -Orthogonal Frequency Division Multiplexing (LTE-OFDM) signals by using mil-limetre ...
Experimental comparison of DSB and CS-DSB mmW formats over a hybrid fiber and FSO fronthaul network for 5G

Bohata, J.; Nguyen, D.N.; Spacil, J.; Komanec, M.; Ortega Tamarit, Beatriz; Vallejo-Castro, Luis; Ghassemlooy, Z.; Zvanovec, S. (The Optical Society, 2021-08-16)

[EN] The telecommunication world is experiencing the 5th generation (5G) networks deployment including the use of millimeter wave (mmW) frequency bands to satisfy capacity demands. This leads to the extensive use of optical ...
Full-duplex transmission of multi-Gb/s subcarrier multiplexing and 5G NR signals in 39 GHz band over fiber and space

Nguyen, Dong-Nhat; Vallejo-Castro, Luis; Almenar Terre, Vicenç; Ortega Tamarit, Beatriz; Dat, Pham Tien; Le, Son Thai; Bohata, Jan; Zvanovec, Stanislav (The Optical Society, 2022-02-10)

[EN] We propose a stable full-duplex transmission of millimeter-wave signals over a hybrid single-mode fiber (SMF) and free-space optics (FSO) link for the fifth-generation (5G) radio access networks to accelerate the ...
Influence of Duodenal-Jejunal Implantation on Glucose Dynamics: A Pilot Study Using Different Nonlinear Methods

Cuesta Frau, David; Novák, Daniel; Burda, Vaclav; Abasolo, Daniel; Adjei, Tricia; Varela, Manuel; Vargas, Borja; Mraz, Milos; Kavalkova, Petra; Benes, Marek; Haluzik, Martin (John Wiley & Sons, 2019-02-14)

[EN] Diabetes is a disease of great and rising prevalence, with the obesity epidemic being a significant contributing risk factor. Duodenal¿jejunal bypass liner (DJBL) is a reversible implant that mimics the effects of ...
Influence of glucometric 'dynamical' variables on Duodenal-Jejunal Bypass Liner (DJBL) anthropometric and metabolic outcomes

Colás, Ana; Varela, Manuel; Mraz, Milos; Novak, Daniel; Cuesta Frau, David; Vigil, Luis; Benes, Marek; Pelikanova, Terezie; Haluzik, Martin; Burda, Vaclav; Vargas, Borja (John Wiley & Sons, 2020-05)

[EN] Background The endoscopically implanted duodenal-jejunal bypass liner (DJBL) is an attractive alternative to bariatric surgery for obese diabetic patients. This article aims to study dynamical aspects of the glycaemic ...
Sample Entropy Analysis of Noisy Atrial Electrograms during Atrial Fibrillation

CIRUGEDA ROLDAN, EVA MARÍA; Molina Picó, Antonio; Novák, Daniel; Cuesta Frau, David; Kremen,Vaclav (Hindawi Limited, 2018-06-13)

[EN] Most cardiac arrhythmias can be classified as atrial flutter, focal atrial tachycardia, or atrial fibrillation. They have been usually treated using drugs, but catheter ablation has proven more effective. This is an ...
Secreted Enzyme-Responsive System for Controlled Antifungal Agent Release

Bernardos Bau, Andrea; Bozik, Matej; Montero, Ana; Pérez-Esteve, Édgar; García-Casado, Esther; Lhotka, Miroslav; Frankova, Adela; Marcos Martínez, María Dolores; Barat Baviera, José Manuel; Martínez-Máñez, Ramón; Kloucek, Pavel (MDPI AG, 2021-05)

[EN] Essential oil components (EOCs) such as eugenol play a significant role in plant antimicrobial defense. Due to the volatility and general reactivity of these molecules, plants have evolved smart systems for their ...
Wideband QAM-over-SMF/turbulent FSO downlinks in a PON architecture for ubiquitous connectivity

Nguyen, Dong-Nhat; Vallejo-Castro, Luis; Bohata, Jan; Ortega Tamarit, Beatriz; Ghassemlooy, Zabih; Zvanovec, Stanislav (Elsevier, 2020-11-15)

[EN] We propose and investigate for the first time a seamless millimeter-wave (mmW) radio-over-fiber (RoF) and radio-over-free-space optics (FSO)-based downlink for use in a passive optical network architecture using 4-, ...