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Listar por autor "Ordoñez Cebrián, Patricia"

Mostrando ítems 1-12 de 12

Acoustical estimation of fish biomass: species identification and stocks management

Espinosa Roselló, Víctor; Calise, Lucio; Estruch, V. D.; Llorens Escrich, Susana; Ordoñez Cebrián, Patricia; Pérez Arjona, Isabel; Puig Pons, Vicente; Soliveres, Ester (Associazione Italiana di Acustica, 2015)

[EN] Acoustics is the basics of the most important technologies for underwater telecommunication, as well as for target detection and identification in the aquatic media. Multiple frequency measurements are the key for ...
Automated Monitoring of Bluefin Tuna Growth in Cages Using a Cohort-Based Approach

Muñoz-Benavent, Pau; Andreu García, Gabriela; Martínez-Peiró, Joaquín; Puig Pons, Vicente; Morillo-Faro, Andrés; Ordoñez-Cebrian, Patricia; Atienza-Vanacloig, Vicente; Pérez Arjona, Isabel; Espinosa Roselló, Víctor; Alemany, Francisco (MDPI AG, 2024-02)

[EN] In this article, the evolution of BFT (bluefin tuna) sizes in fattening cages is studied, for which it was necessary to perform exhaustive monitoring with stereoscopic cameras and an exhaustive analysis of the data ...
Automatic Bluefin Tuna (Thunnus thynnus) biomass estimation during transfers using acoustic and computer vision techniques

Puig Pons, Vicente; Muñoz-Benavent, Pau; Espinosa Roselló, Víctor; Andreu García, Gabriela; Valiente González, José Miguel; Estruch, V. D.; Ordoñez-Cebrian, Patricia; Pérez Arjona, Isabel; Atienza-Vanacloig, Vicente; Mèlich, Begonya; De la Gandara García, Fernando; Santaella, E. (Elsevier, 2019)

[EN] In this work, acoustic and computer vision techniques are combined to develop an automatic procedure for biomass estimation of tuna during transfers. A side scan sonar working at 200¿kHz and a stereo camera, positioned ...
Efficiency of parametric ultrasound generation in relaxing media for very shallow-water echo sounders

Ordoñez-Cebrian, Patricia; Jimenez, Noe; Espinosa Roselló, Víctor; Puig Pons, Vicente; Soliveres, Ester (2014-04)

Parametric acoustic generation provides the possibility to obtain narrow and nearly side-lobe free acoustic beams for low frequencies. In this way, the nonlinear interaction of two intense beams with close frequencies ...
Estimation of Bluefin Tuna (Thunnus thynnus) mean length in sea cages by acoustical means

Puig Pons, Vicente; Muñoz-Benavent, Pau; Pérez Arjona, Isabel; Ladino-Velásquez, Anderson; Llorens-Escrich, Susana; Andreu García, Gabriela; Valiente González, José Miguel; Atienza-Vanacloig, Vicente; Ordoñez-Cebrian, Patricia; Pastor Gimeno, José Ismael; Espinosa Roselló, Víctor (Elsevier, 2022-08)

[EN] This paper proposes an indirect method to estimate Bluefin Tuna (Thunnus thynnus) biomass in cages using acoustic techniques. Two Simrad EK60 echosounders working at 120 and 200 kHz and a stereo camera were used to ...
Estudio del comportamiento de una cerámica piezoeléctrica mediante elementos finitos

Ordoñez Cebrián, Patricia (Universitat Politècnica de València, 2011-12-23)

El objetivo de este trabajo es analizar el comportamiento de una cerámica piezoeléctrica mediante su simulación con el método de elementos finitos. En primer lugar, se realizará una medida experimental de una cerámica ...
Monitoring fish weight using pulse-echo waveform metrics

Soliveres, E.; Poveda Martinez, Pedro; Estruch, V. D.; Pérez Arjona, Isabel; Puig Pons, Vicente; Ordoñez-Cebrian, Patricia; Ramis Soriano, Jaime; Espinosa Roselló, Víctor (Elsevier, 2017)

[EN] Fish anatomical vertical dimensions are extracted from a time-of-flight analysis of fish echo shape using narrow bandwidth echosounding of swimming individuals. These vertical dimensions fit a Gumbel distribution model ...
Monitoring of Caged Bluefin Tuna Reactions to Ship and Offshore Wind Farm Operational Noises

Puig Pons, Vicente; Soliveres, Ester; Pérez-Arjona, Isabel; Espinosa Roselló, Víctor; Poveda-Martínez, Pedro; Ramis-Soriano, Jaime; Ordoñez-Cebrián, Patricia; Moszynski, Marek; de la Gándara, Fernando; Bou-Cabo, Manuel; Cort, José L.; Santaella, Eladio (MDPI AG, 2021-11)

[EN] Underwater noise has been identified as a relevant pollution affecting marine ecosystems in different ways. Despite the numerous studies performed over the last few decades regarding the adverse effect of underwater ...
Simulación mediante elementos finitos de un sistema de emisión-recepción ecográfico

Ordoñez Cebrián, Patricia (Universitat Politècnica de València, 2018-11-06)

El objetivo principal de este PFC es diseñar un sistema de emisión-recepción ecográfico mediante elementos finitos capaz de simular un sistema real, definiendo todos sus parámetros así como todas las condiciones necesarias ...
Target strength measurements of gilthead sea bream with single-beam quantitative echosounder

Llorens Escrich, Susana; Soliveres, Ester; Pérez Arjona, Isabel; Espinosa Roselló, Víctor; Puig Pons, Vicente; Ordoñez Cebrian, Patricia (Universidade do Porto, 2016-06-15)

[EN] Target strength (TS) measurements for ventral aspect of gilthead sea bream (Sparus aurata) have been performed in a scaled aquaculture cage. The measurements have been made with a Simrad EK-60 scientific echososunder ...
Técnicas numéricas aplicadas a la propagación de sonido en el medio marino

Remiro Gargallo, Andrea Vicenta (Universitat Politècnica de València, 2019-10-16)

[ES] Como bien indica unas de las características más importantes y nos concierne a la mayoría de nosotros dentro de la aplicación de la propagación acústica en el marco de la estrategia marina (MSFD), es que el medio ...
Ultrasonic transducer design: Feasibility as parametric echosounder in shallow water

Ordoñez Cebrián, Patricia (Universitat Politècnica de València, 2017-09-01)

In recent decades, acoustic techniques have become the most appropriate tools for biomass estimation in the fishing industry. This is because acoustic waves are the only waves that can be used for remote sensing in the ...