Ignacio Bosch Reig

Universitat Politècnica de València

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Jorge Gosálbez Castillo

Universitat Politècnica de València

Luis Vergara

Universitat Politècnica de València

Jaime Lloret

Universitat Politècnica de València

Ramón Miralles

Universitat Politècnica de València

P. Bosch

Universitat Politècnica de València

A. Carrión

Instituto de Instrumentación para Imagen Molecular

Addisson Salazar

Universitat Politècnica de València

José Santatecla Fayós

Universitat Politècnica de València

José Vicente Fuente

Asociación de Investigación de las Industrias de la Construcción

J.M Bosch Reitg

Cooperative Institutions

Universitat Politècnica de València

Universitat de València

INCLIVA Health Research Institute

Instituto de Salud Carlos III

Hospital Universitari i Politècnic La Fe

Centro de Investigación Biomédica en Red

Instituto de Investigación Sanitaria La Fe

Hospital Clínico Universitario de Valencia

Polytechnic University of Puerto Rico

Universidad Politécnica de Madrid

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Reconstructing ultrasonic images and flaw detection in time-frequency domain by matching a-scan inspections

European Signal Processing Conference (2005)

Addisson Salazar Jorge Gosálbez Castillo Ignacio Bosch Reig

Time-frequency techniques are applied for mixing signals from a material inspected by a multiple sensor detection system. Ultrasonic sensors are located at the perimeter of a rectangular shaped material evaluated in a pulse-echo scheme. The resulting mixed signal becomes a high-resolution time-frequency image of the material. Different kinds of classification techniques can be applied to this image in order to obtain the defects in the material. In this paper, a simulation and experimental evaluation of the proposed approach are presented. Several time-frequency transforms and the fuzzy c-means are used. In the simulations, backscattering of the material grain is modelled by using Gaussian and K distributions with different signal to noise ratio parameters. The validity of the presented method is assessed through the detection and spatial location of artificial defects in a material with a rectangular shape. The performance of the classification technique in discerning defects buried in the backscattering from the material grain microstructure, is also discussed.

SIGNAL (programming language)

10.5281/zenodo.39094

Cite

Citations (0)

Joint Interference and Phase Alignment among Data Streams in Multicell MIMO Broadcasting

Applied Sciences (2018)

Waleed Shahjehan Syed Waqar Shah Jaime Lloret Ignacio Bosch Reig

For the problem of channel state information (CSI) delay and error, this paper proposes a joint interference and phase alignment algorithm based on Bayesian estimation and power allocation among data streams for multicell, multiple-input multiple-output broadcast channels (MIMO-BC). Firstly, the sender obtains the best estimate of the current CSI through Bayesian estimation. Secondly, the interference suppression matrix is designed by maximizing the ratio of the desired signal power to the intercell interference plus noise ratio (SINR) in the forward link, and in the reverse communication, by maximizing the SINR design precoding. Further, the water-filling algorithm is combined to optimize power allocation among data streams. Finally, the phase alignment is used to rotate the interference between data streams into the signal space of the target receive data stream, thereby enhancing the received power of the target data stream. Simulation results show that the proposed algorithm has certain performance advantages over other algorithms, whether it is ideal CSI or delay and error CSI.

Zero-forcing precoding

Channel state information

Signal-to-interference-plus-noise ratio

10.3390/app8081237

Cite

Citations (8)

Optimized ultrasonic attenuation measures for internal sulphate attack monitoring in Portland cement mortars

2017 IEEE International Ultrasonics Symposium (IUS) (2017)

V. Genovés A. Carrión Jorge Gosálbez Castillo Ignacio Bosch Reig Jorge Juán Payá Bernabeu

Sulphate attack is considered one of the most aggressive causes of concrete degradation. Ettringite triggers expansion mechanisms that have harmful effects on the Portland cement matrix, causing micro-cracking and, consequently, a reduction in the stiffness and strength of concrete. Portland cement composites are very dispersive and heterogeneous materials that makes very challenging to do non-invasive inspections to know the intrinsic properties and integrity of such material. In this work, the degradation process due to internal sulphate attack in mortar specimens has been monitored by means of an intensive broadband frequency analysis of ultrasonic attenuation and it has been compared with mechanical and expansion analysis, and the traditional ultrasonic pulse velocity (UPV).

Ettringite

10.1109/ultsym.2017.8092914

Cite

Citations (1)

Self-Assessment Based Clustering Data Dissemination for Sparse and Dense Traffic Conditions for Internet of Vehicles

IEEE Access (2020)

Kashif Naseer Qureshi M. Idrees Jaime Lloret Ignacio Bosch Reig

Internet of Vehicle (IoV) is a sub class of vehicular ad hoc networks with more advanced cloud and Internet-enabled services.These networks offer various types of safety and infotainment services and provide comfortability and safety to passengers as well as to the drivers.Due to the high mobility of nodes, the nodes are out from its communication range and the information becomes outdated and causes link disconnections and packet dropping.Most feasible routing protocols are needed to provide in-time data communication, handle high mobility of nodes, dynamic topologies and unpredictable environments of these networks.In this paper, we proposed SACBR (Self-Assessment Cluster-based Routing) protocol in which the Cluster Heads (CHs) can communicate with other CHs.Every vehicle node initiates a self-assessment approach based on more appropriate routing metrics and elects the CH for every cluster and then collects the data from member nodes and further forward the data to other CHs.The CH is responsible to manage its own and member nodes' data forwarding process.The proposed protocol provides more stability and less overhead compared to the aggregation method where every node exchanges its data with a one-hop neighbor.Proposed protocol suites sparse and dense traffic scenarios where most of the time vehicle nodes are moving in platoons or snaking structures.The experimental results show the better performance of SACBR compared to state-of-the-art protocols.

10.1109/access.2020.2964530

Cite

Citations (44)

Construyendo la historia y la meadfañslf

Restauración & rehabilitación (2012)

Ignacio Bosch Reig P. Bosch

Source

Cite

Citations (0)

Estudio integral de la metodología aprendizaje basado en problemas para la adquisición de competencias transversales con técnica de trabajo en equipo y evaluación individualizada

Yiyao Ye-Lin Gema Prats-Boluda Ignacio Bosch Reig J.L. Martínez-de-Juan

El trabajo en grupo es una de las metodologias docentes mas comunes para la adquisicion de competencias especificas y transversales. La metodologia de aprendizaje basado en problemas (ABP) se implanto para el desarrollo grupal de competencias en los estudiantes del Grado en Ingenieria Biomedica. No obstante, se detecto una excesiva carga de trabajo no presencial para los alumnos (71±35 h). Asimismo, la evaluacion del trabajo grupal no reflejaba fielmente el aprendizaje individual de cada estudiante. En este trabajo se realiza un estudio integral de la implantacion de la metodologia ABP con especial enfasis en la evaluacion del aprendizaje individual en las actividades grupales. El analisis de la dedicacion no presencial del alumnado (26±15 h por 1.8 ECTS) y del profesorado (∼14.3 h/ECTS) muestra que la metodologia propuesta es altamente sostenible y aunque supuso una reduccion significativa en el tiempo de dedicacion, no afecto a la percepcion del alumnado sobre la adquisicion de competencias. Ademas, los alumnos consideran que la metodologia ABP permite mejorar significativamente el nivel de dominio del manejo de Matlab. En cuanto al sistema de evaluacion que valora el aprendizaje individual del manejo de Matlab se ha encontrado cierta resistencia al cambio del metodo de evaluacion por parte del alumnado.

Source

Cite

Citations (0)

Automated Cervical Spinal Cord Segmentation in Real-World MRI of Multiple Sclerosis Patients by Optimized Hybrid Residual Attention-Aware Convolutional Neural Networks

Journal of Digital Imaging (2022)

América Bueno Gómez Ignacio Bosch Reig Alejandro Rodríguez Ana Jiménez-Pastor J. Carreres-Polo

Sørensen–Dice coefficient

Ground truth

10.1007/s10278-022-00637-4

Cite

Citations (4)

Pancreatic steatosis and iron overload increases cardiovascular risk in non-alcoholic fatty liver disease

Frontiers in Endocrinology (2023)

David Martí‐Aguado Amadeo Ten‐Esteve Carlos Manuel Baracaldo-Silva Ana Crespo Elena Coello

To assess the prevalence of pancreatic steatosis and iron overload in non-alcoholic fatty liver disease (NAFLD) and their correlation with liver histology severity and the risk of cardiometabolic diseases.A prospective, multicenter study including NAFLD patients with biopsy and paired Magnetic Resonance Imaging (MRI) was performed. Liver biopsies were evaluated according to NASH Clinical Research Network, hepatic iron storages were scored, and digital pathology quantified the tissue proportionate areas of fat and iron. MRI-biomarkers of fat fraction (PDFF) and iron accumulation (R2*) were obtained from the liver and pancreas. Different metabolic traits were evaluated, cardiovascular disease (CVD) risk was estimated with the atherosclerotic CVD score, and the severity of iron metabolism alteration was determined by grading metabolic hiperferritinemia (MHF). Associations between CVD, histology and MRI were investigated.In total, 324 patients were included. MRI-determined pancreatic iron overload and moderate-to severe steatosis were present in 45% and 25%, respectively. Liver and pancreatic MRI-biomarkers showed a weak correlation (r=0.32 for PDFF, r=0.17 for R2*). Pancreatic PDFF increased with hepatic histologic steatosis grades and NASH diagnosis (p<0.001). Prevalence of pancreatic steatosis and iron overload increased with the number of metabolic traits (p<0.001). Liver R2* significantly correlated with MHF (AUC=0.77 [0.72-0.82]). MRI-determined pancreatic steatosis (OR=3.15 [1.63-6.09]), and iron overload (OR=2.39 [1.32-4.37]) were independently associated with high-risk CVD. Histologic diagnosis of NASH and advanced fibrosis were also associated with high-risk CVD.Pancreatic steatosis and iron overload could be of utility in clinical decision-making and prognostication of NAFLD.

Steatosis

Steatohepatitis

10.3389/fendo.2023.1213441

Cite

Citations (2)

New analysis and extensions of split-spectrum processing algorithms

NDT & E International (2011)

Alberto Rodríguez Ramón Miralles Ignacio Bosch Reig Luis Vergara

Figure of Merit

10.1016/j.ndteint.2011.10.001

Cite

Citations (28)

Estudios previos a la restauración de los puentes históricos de Trinidad y Serranos de Valencia

Arché (2006)

Margarita Fernández Gómez Arturo Martínez Boquera Ignacio Bosch Reig María Paz Cortés Alcober

espanolIn the present paper we summarise the analyses and methods carried out and the results obtained in the previous research works performed in the historical-cultural, graphic-urban and constructive-structural fields in order to determine the conservation status of the historical bridges of Serrano and Trinidad of Valencia for the purpose of determining rigorous restoration interventions to be used for their conservation and valuation. EnglishEn el presente articulo se exponen de forma resumida, los analisis realizados, metodos empleados, y resultados obtenidos en las investigaciones previas efectuadas en los campos historico-cultural, grafico-urbano y constructivo-estructural, para determinar la situacion real de conservacion de los puentes historicos de Serranos y Trinidad de Valencia, para con ello, poder determinar con rigor las actuaciones de restauracion que deben aplicarse para su valoracion y permanencia.

Valencia

Source

Cite

Citations (0)