RiuNet UPV Home
:
Browsing by UPV Unit

Search RiuNet

Browse

All of RiuNet

My Account

RiuNet Help

Admin. UPV

Browsing by UPV Unit "Universitat Politècnica de València. Departamento de Ingeniería Electrónica - Departament d'Enginyeria Electrònica"

Now showing items 21-40 of 3396

A Control Scheme without Sensors at the PV Source for Cost and Size Reduction in Two-Stage Grid Connected Inverters

González-Medina, Raúl; Liberos-Mascarell, María Antonia; Marzal Romeu, Silvia; Figueres Amorós, Emilio; Garcerá, Gabriel (MDPI AG, 2019-08-01)

[EN] In order to reduce the cost of PV facilities, the market requires low cost and highly reliable PV inverters, which must comply with several regulations. Some research has focused on decreasing the distortion of the ...
A Control Stage for Parallel-Connected Interlinking Converters in Hybrid AC-DC Microgrids

Liberos, Marian; González-Medina, Raúl; Patrao Herrero, Iván; Torán, Enric; Garcerá, Gabriel; Figueres Amorós, Emilio (Institute of Electrical and Electronics Engineers, 2023)

[EN] Having two or more interlinking converters connected in parallel in hybrid microgrids has some benefits, like modularity, flexibility, and redundancy. However, the parallelization of the inverters leads to circulating ...
A controllable bandwidth filter using varactor-loaded metamaterial-inspired transmission lines

Lucas Borja, Alejandro; Carbonell Olivares, Jorge; Martínez Pérez, Jorge Daniel; Boria Esbert, Vicente Enrique; Lippens, Didier (Institute of Electrical and Electronics Engineers (IEEE), 2011)

This letter presents a tunable bandwidth bandpass filter based on varactor-loaded metamaterial coplanar waveguide (CPW) lines. The CPW lines are based on series gaps and split-ring resonators. The varactors are ...
A cooled intraesophageal balloon to prevent thermal injury during endocardial surgical radiofrequency ablation of the left atrium: a finite element study

Berjano, Enrique; Hornero, Fernando (IOP Publishing, 2015-10-21)

[EN] Recent clinical studies on intraoperative monopolar radiofrequency ablation of atrial fibrillation have reported some cases of injury to the esophagus. The aim of this study was to perform computer simulations using ...
A dashboard-based system for supporting diabetes care

Dagliati, Arianna; Sacchi, Lucia; Tibollo, V.; Cogni, G.; Teliti, M.; Martinez-Millana, Antonio; Traver Salcedo, Vicente; Segagni, Daniele; Posada, J.; Ottaviano, M.; Fico, Giuseppe; Arredondo, M.T.; De Cata, P.; Chiovato, L.; Bellazzi, Riccardo (Oxford University Press, 2018-02)

[EN] Objective To describe the development, as part of the European Union MOSAIC (Models and Simulation Techniques for Discovering Diabetes Influence Factors) project, of a dashboard-based system for the management of type ...
A Deep Learning Approach for Featureless Robust Quality Assessment of Intermittent Atrial Fibrillation Recordings from Portable and Wearable Devices

Huerta Herraiz, Álvaro; Martínez-Rodrigo, Arturo; Bertomeu-González, Vicente; Quesada, Aurelio; Rieta, J J; Alcaraz, Raúl (MDPI AG, 2020-07)

[EN] Atrial fibrillation (AF) is the most common heart rhythm disturbance in clinical practice. It often starts with asymptomatic and very short episodes, which are extremely difficult to detect without long-term monitoring ...
A Deep Learning Solution for Automatized Interpretation of 12-Lead ECGs

Huerta, Alvaro; Martinez-Rodrigo, Arturo; Rieta, J J; Alcaraz, Raúl (IEEE, 2020-09-16)

[EN] A broad variety of algorithms for detection and classification of rhythm and morphology abnormalities in ECG recordings have been proposed in the last years. Although some of them have reported very promising ...
A didactic tool for the study of Computed Tomography image reconstruction

El Hajj, Rida (Universitat Politècnica de València, 2015-05-11)

The main goal of this project was to design a didactic software tool that could permit a user to study the mechanisms behind the image reconstruction in Computerized Axial Tomography (also known as Computed Tomography), ...
A Dual-Band Antenna for RF Energy Harvesting Systems in Wireless Sensor Networks

Bakkali, A.; Pelegrí Sebastiá, José; Sogorb Devesa, Tomás C.; Llario Sanjuan, José Vicente; Bou Escrivà, Antoni (Hindawi Publishing Corporation, 2016)

In this paper, we focus on ambient radio frequency energy available from commercial broadcasting stations in order to provide a system based on RF energy harvesting using a new design of receiving antenna. Several antenna ...
A Fast and Low-Complexity Operator for the Computation of the Arctangent of a Complex Number

Torres Carot, Vicente; Valls Coquillat, Javier (Institute of Electrical and Electronics Engineers, 2017)

[EN] The computation of the arctangent of a complex number, i.e., the atan2 function, is frequently needed in hardware systems that could profit from an optimized operator. In this brief, we present a novel method to compute ...
A fast method for monitoring the shifts in resonance frequency and dissipation of the QCM sensors of a Monolithic array in biosensing applications

FERNÁNDEZ DÍAZ, ROMÁN; Calero-Alcarria, María Del Señor; García Narbón, José Vicente; Reiviakine, Ilya; Arnau Vives, Antonio; Jiménez Jiménez, Yolanda (Institute of Electrical and Electronics Engineers, 2021-03-01)

[EN] Improvement of data acquisition rate remains as an important challenge in applications with Quartz Crystal Microbalance (QCM) technology where high throughput is required. To address this challenge, we developed a ...
A Flexible Multiring Concentric Electrode for Non-Invasive Identification of Intestinal Slow Waves

Zena-Giménez, Victor Fabián; Garcia Casado, Francisco Javier; Ye Lin, Yiyao; Garcia-Breijo, Eduardo; Prats-Boluda, Gema (MDPI AG, 2018)

[EN] Developing new types of optimized electrodes for specific biomedical applications can substantially improve the quality of the sensed signals. Concentric ring electrodes have been shown to provide enhanced spatial ...
A fractal nature for polymerized laminin

Hochman Méndez, Carlos; Cantini ., Marco; Moratal Pérez, David; Salmerón Sánchez, Manuel; Coelho-Sampaio, Tatiana (Public Library of Science, 2014-10)

Polylaminin (polyLM) is a non-covalent acid-induced nano- and micro-structured polymer of the protein laminin displaying distinguished biological properties. Polylaminin stimulates neuritogenesis beyond the levels achieved ...
A fully automated level-set based segmentation method of thoracic and lumbar vertebral bodies in computed tomography images

Ruiz España, Silvia; Díaz Parra, Antonio; Arana Fernandez de Moya, Estanislao; Moratal Pérez, David (2015)

Spine is a structure commonly involved in several diseases. Identification and segmentation of the vertebral structures are of relevance to many medical applications related to the spine such as diagnosis, therapy or ...
A fully automated method for segmentation and classification of local field potential recordings. Preliminary results

Díaz-Parra, Antonio; Canals, S.; Moratal, David (IEEE Engineering in Medicine and Biology Society, 2017-09-14)

[EN] Identification of brain states measured with electrophysiological methods such as electroencephalography and local field potential (LFP) recordings is of great importance in numerous neuroscientific applications. For ...
A Fully Automated Method for Spinal Canal Detection in Computed Tomography Images

Díaz Parra, Antonio; Arana Fernandez de Moya, Estanislao; Moratal Pérez, David (2014)

This work presents a new automated method for spinal canal detection in Computed Tomography (CT) images. It uses both 2D and 3D information and the algorithm extracts the spinal canal automatically. The procedure can be ...
A generalized entropy-based two-phase threshold algorithm for noisy medical image edge detection

Elaraby, A; Moratal, David (Elsevier, 2017)

[EN] Edge detection in medical imaging is a significant task for object recognition of human organs and is considered a pre-processing step in medical image segmentation and reconstruction. This article proposes an efficient ...
A High Fundamental Frequency (HFF)-based QCM Immunosensor for Tuberculosis Detection

Montoya Baides, Ángel; March Iborra, Mª Del Carmen; Montagut Ferizzola, Yeison Javier; Moreno Tamarit, Mª José; Manclus Ciscar, Juan José; Arnau Vives, Antonio; Jiménez Jiménez, Yolanda; Jaramillo, Marisol; Marin, Paula A.; Torres-Villa, Róbinson Alberto (Bentham Science Publishers, 2017)

Tuberculosis, one of the oldest diseases affecting human beings, is still considered as a world public health problem by the World Health Organization. Therefore, there is a need for new and more powerful analytical methods ...
A humid electronic nose based on pulse voltammetry: A proof-of-concept design

Bataller Prats, Román; Campos Sánchez, Inmaculada; Alcañiz Fillol, Miguel; Gil Sánchez, Luís; García Breijo, Eduardo; Martínez Mañez, Ramón; Pascual Vidal, Lluís; Soto Camino, Juan; Vivancos, José-Luís (Elsevier, 2013-09)

[EN] We report herein the design, manufacture and use of a "humid electronic nose" prototype based on voltammetric techniques. It consists of an array of four working electrodes (i.e., Au, Pt, Ir and Rh) housed inside a ...
A low-cost photovoltaic emulator for static and dynamic evaluation of photovoltaic power converters and facilities

González Medina, Raúl; Patrao Herrero, Iván; Garcerá Sanfeliú, Gabriel; Figueres Amorós, Emilio (Wiley, 2014-02)

In testing maximum power point tracking (MPPT) algorithms running on electronic power converters for photovoltaic (PV) applications, either a PV energy source (PV module or PV array) or a PV emulator is required. With a ...