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Listar por palabra clave "Ultrasonics"

Mostrando ítems 1-20 de 21

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2D biological representations with reduced speckle obtained from two perpendicular ultrasonic arrays

Rodríguez-Hernández, Miguel A.; Gomez Sacristan, Ángel; Sempere Paya, Víctor Miguel (IOS Press, 2016)

[EN] Ultrasound diagnosis is a widely used medical tool. Among the various ultrasound techniques, ultrasonic imaging is particularly relevant. This paper presents an improvement to a two-dimensional (2D) ultrasonic system ...
Active aqueous extracts from rice straw to improve the preservation capacity of PLA in pork meat

Bas Gil, Nuria Julia (Universitat Politècnica de València, 2022-11-02)

[EN] Rice straw is an agro-industrial lignocellulosic residue produced worldwide in large quantities, highly rich in phenolic compounds with bioactive properties. In this study, aqueous extracts of this residue have been ...
ASSESSMENT OF THE INFLUENCE OF PROCESSING CONDITIONS ON THE ANTIOXIDANT POTENTIAL OF EXTRACTS OBTAINED FROM OLIVE OIL INDUSTRY BYPRODUCTS

Ahmad-Qasem Mateo, Margarita Hussam (Universitat Politècnica de València, 2016-01-03)

[EN] The main goal of this Thesis was to determine the influence of the main processing stages involved in obtaining natural extracts with high antioxidant potential from byproducts originating in the olive oil industry. Firstly, ...
Effect of ultrasound preinsonification of solutions on the structuring of dried microdrop trails

Camarena Femenia, Francisco; Makov, Yu. N. (MAIK NAUKA/INTERPERIODICA/SPRINGER, 2011-09)

The effect of ultrasound preinsonification of a solution on the kinetics and end result of the drying (evaporation) of a microdrop of this solution on a substrate was examined. The results of experiments with salt solution ...
Effects of high-intensity ultrasound on drying kinetics and antioxidant properties of passion fruit peel

do Nascimento, Elisabete M. G. C.; Mulet Pons, Antonio; Ramirez Ascheri. José Luis; Piler de Carvalho, Carlos Wanderlei; Cárcel Carrión, Juan Andrés (Elsevier, 2016)

[EN] The aim of this study was to evaluate the effect of temperature and ultrasound application on drying kinetics and antioxidant potential of passion fruit peel. To this end, drying experiments (1 ms1) were carried out ...
Electrical characterization of piezoelectric ceramics

Ibarra García, Diego Alexander (Universitat Politècnica de València, 2023-10-17)

[ES] Para la caracterización de materiales piezoeléctricos, el método de resonancias, descrito por el IEEE(Institute of Electrical and Electronics Engineers), es un método no destructiva dinámica para la obtención de las ...
Evaluación no destructiva de materiales mediante métodos de reconstrucción tomográfica basados en redes neuronales de base radial

Albert Pérez, Vicente (Universitat Politècnica de València, 2013-02-19)

[ES] Se presenta un nuevo método de reconstrucción tomográfica de materiales inspeccionados por ultrasonidos. Los siguientes parámetros son extraídos de la señal ultrasónica medida: velocidad de propagación, atenuación ...
Modeling Ultrasonically Assisted Convective Drying of Eggplan

García Pérez, José Vicente; Ozuna López, César; Ortuño Cases, Carmen; Cárcel Carrión, Juan Andrés; Mulet Pons, Antonio (Taylor & Francis, 2011)

[EN] Modeling constitutes a fundamental tool with which to analyze the influence of ultrasound on mass transfer phenomena during drying. In this work, the study of the effect of power ultrasound application on the drying ...
Noise reduction using wavelet cycle spinning: analysis of useful periodicities in the z-transform domain

Rodríguez-Hernández, Miguel A.; San Emeterio, Jose L. (Springer Verlag (Germany), 2016-03)

Cycle spinning (CS) and a'trous algorithms are different implementations of the undecimated wavelet transform (UWT). Both algorithms can be used for UWT and even though the resulting wavelet coefficients are different, ...
Optimized ultrasonic attenuation measures for non-homogeneous materials

Genovés Gómez, Vicente; Gosálbez Castillo, Jorge; Carrión García, Alicia; Miralles Ricós, Ramón; Paya Bernabeu, Jorge Juan (Elsevier, 2016-02)

In this paper the study of frequency-dependent ultrasonic attenuation in strongly heterogeneous materials is addressed. To determine the attenuation accurately over a wide frequency range, it is necessary to have suitable ...
Polyadic Cantor Fractal Ultrasonic Lenses: Design and Characterization

Castiñeira Ibáñez, Sergio; Tarrazó-Serrano, Daniel; Fuster Escuder, José Miguel; Candelas Valiente, Pilar; Rubio Michavila, Constanza (MDPI AG, 2018)

[EN] Traditional acoustic lenses modulate the ultrasonic beam due to their curved surfaces and the refractive material of which they are made. In this work, a different type of acoustic lens, based on Polyadic Cantor ...
Shift Selection Influence in Partial Cycle Spinning Denoising of Biomedical Signals

Rodríguez-Hernández, Miguel A. (Elsevier, 2016-04)

Denoising of biomedical signals using wavelet transform is a widely used technique. The use of undecimated wavelet transform (UWT) assures better denoising results but implies a higher complexity than discrete wavelet ...
Ultrasonic and impact spectroscopy monitoring on internal sulphate attack of cement-based materials

Genovés Gómez, Vicente; Vargas, F.; Gosálbez Castillo, Jorge; Carrión García, Alicia; Borrachero Rosado, María Victoria; Paya Bernabeu, Jorge Juan (Elsevier, 2017)

[EN] An exhaustive monitoring of an internal sulphate attack of Portland cement-based materials is addressed. Four series of Portland cement mortars with different amounts of gypsum (0%¿2% SO3 respect to the cement by mass) ...
Ultrasonic assessment of fresh cheese composition

Telis Romero, Javier; Vaquiro, Henry A.; Bon Corbín, José; Benedito Fort, José Javier (Elsevier, 2011-03)

[EN] Fresh cheese composition was assessed by measuring ultrasonic velocity in cheese and cheese blends at different temperatures Twenty types of commercial fresh cheeses with fat contents ranging from 0 2% to 17 6% w b ...
Ultrasonic broadband signal monitoring of Glass-fiber Reinforced Cement (GRC) bending tests

Genovés, V.; Gosálbez Castillo, Jorge; Carrión García, Alicia; Miralles Ricós, Ramón; Paya Bernabeu, Jorge Juan (Elsevier, 2017)

[EN] In this study, complete ultrasonic monitoring of Glass-fiber Reinforced Cement plates under bending tests was addressed. In this kind of experiment, the mechanical properties of the specimen continuously change during ...
Ultrasonic Characterisation of B.femoris from Iberian pigs of different genetics and feeding systems

Niñoles Rodenes, Laura; Mulet Pons, Antonio; Ventanas, Sonia; Benedito Fort, José Javier (Elsevier, 2011-10)

[EN] Ultrasonic velocity was used to characterise the differences in composition and texture of Biceps Femoris muscles from four batches of pigs of different genetics (Iberian and Iberian x Duroc) and feeding systems ...
Ultrasonic characterization of the fat source and composition of formulated dry-cured meat products

Corona Jiménez, Edith; García Pérez, José Vicente; Ventanas Canillas, Sonia; Benedito Fort, José Javier (SAGE Publications (UK and US), 2014-06)

[EN] The aim of this work was to test the feasibility of using ultrasonic measurements to estimate the fat content and identify the fat sources used in formulated dry-cured pork meat products. For that purpose, dry-cured ...
Ultrasonic monitoring of lard crystallization during storage

Santacatalina Bonet, Juan Vicente; García Pérez, José Vicente; Corona Jiménez, Edith; Benedito Fort, José Javier (Elsevier, 2011-01)

[EN] This work addresses the use of ultrasonics as a non-destructive technique with which to monitor lard crystallization during cooling and storage. The ultrasonic velocity was measured during both the isothermal ...
Ultrasonic signal modality: A novel approach for concrete damage evaluation

Carrión García, Alicia; Genovés, V.; Gosálbez Castillo, Jorge; Miralles Ricós, Ramón; Paya Bernabeu, Jorge Juan (Elsevier, 2017)

[EN] In this paper, a new approach for characterizing material damage, using ultrasonic waves, is proposed. Two concrete series with two types of cement with different C3A content and similar mechanical properties ...
Ultrasound-assisted extraction of natural products

Esclapez Vicente, María Deseada; García Pérez, José Vicente; Mulet Pons, Antonio; Cárcel Carrión, Juan Andrés; Esclapez, M. D. (Springer Verlag (Germany), 2011-06)

Ultrasound-assisted extraction (USAE) is an interesting process to obtain high valuable compounds and could contribute to the increase in the value of some food by-products when used as sources of natural compounds. The ...