[EN] The effects produced by high-intensity ultrasound application during the acid pretreatment of biomass can enhance its later conversion into bioethanol. Therefore, it is interesting to evaluate how residues,such as ...
[EN] In this paper, the study of frequency-dependent ultrasonic attenuation in strongly heterogeneous cementitious materials is addressed. To accurately determine the attenuation over a wide frequency range, it is necessary ...
García San Félix, Pablo(Universitat Politècnica de València, 2023-09-01)
[ES] Una de las soluciones para el control del ruido en su transmisión viene dada por la utilización de pantallas acústicas. Una pantalla acústica clásica consiste básicamente en un medio continuo de material rígido que ...
Cervera Perea, Carlos(Universitat Politècnica de València, 2016-10-25)
[ES] Actualmente, la aparición de defectos texturales, como la pastosidad, en el
jamón curado se está incrementando a nivel industrial. El defecto de pastosidad
conlleva un rechazo por parte del consumidor y también ...
Fuente Herraiz, David(Universitat Politècnica de València, 2019-06-28)
La presente tesis doctoral, titulada "Contribution to the modelling of the light field distribution within Synechocystis sp. PCC 6803 cultures and its influence on cellular photosynthesis processes", engloba diversos ...
García-García, Laura; Parra, Lorena; Jimenez, Jose M.; Parra-Boronat, Mar; Lloret, Jaime; Mauri, Pedro V.; Lorenz, Pascal(MDPI AG, 2021-03)
[EN] Deploying wireless sensor networks (WSN) in rural environments such as agricultural fields may present some challenges that affect the communication between the nodes due to the vegetation. These challenges must be ...
Vargas García, Fabio Humberto(Universitat Politècnica de València, 2017-01-02)
[EN]
Sulphate attack is the most-known expansive reaction that affects to concrete durability. The most important standards related to sulphate attack try to control the expansion of elements made with concrete restricting ...
Fuente, David; Lizama, Carlos; Urchueguía Schölzel, Javier Fermín; Conejero, J. Alberto(Elsevier, 2018-01)
[EN] Light attenuation within suspensions of photosynthetic microorganisms has been widely described by the Lambert-Beer equation. However, at depths where most of the light has been absorbed by the cells, light decay ...
Zhao, Lishuang(Universitat Politècnica de València, 2021-03-08)
[ES] Esta investigación tiene como objeto de estudio los mecanismos de atenuación empleados en la lengua oral china para contribuir con los estudios de lingüística conversacional china en un aspecto carente de estudios ...
Martínez Mercado, Álvaro Alejandro(Universitat Politècnica de València, 2017-04-25)
Materials based on portland cement can be attacked by external environments rich in sulphates (selenite waters, marine waters), generating a process of expansion by formation of etringición and gypsum. Expansion determination ...
Mora Ruiz, María Eugenia(Universitat Politècnica de València, 2015-10-29)
[ES] Debido a la tendencia de la sociedad a llevar una alimentación más saludable, en la actualidad, se busca producir alimentos con menor contenido en grasa, azúcares o en sal. En el caso del jamón curado, se ha observado ...
Moya-Muñoz, Patricio; Carrió-Pastor, María Luisa(2018)
[EN] The objective of this research is to identify the variation in the use of attenuation strategies used by digital newspaper commentators of El País (Spain) and Emol (Chile) in two contexts, politics and sports. In this ...
Fuente-Herraiz, David; Keller, Joseph; Conejero, J. Alberto; Roegner, Matthias; Rexroth, Sascha; Urchueguía Schölzel, Javier Fermín(Elsevier, 2017)
[EN] Light, being the fundamental energy source to sustain life on
Earth, is the external factor with the strongest impact on photosynthetic
microorganisms. Moreover, when considering biotechnological applications
such ...
[EN] An exhaustive study on thermal damage of Portland cement-based materials is addressed. Damage carried out at different temperatures on concrete between 40 and 525 degrees C were assessed by means of microstructural, ...
[EN] Including non-squared frequency dependent attenuation is essential to obtain accurate acoustic predictions in biological media
when wide-band signals and/or nonlinear effects are taken into account. Thus, a time ...
[EN] When finite amplitude ultrasound propagation is considered, changes in spatial features of focused ultrasound beams can be
observed. These nonlinear effects typically appear in thermoviscous fluids as focal displacements, ...
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 ...
García Chocano, Víctor Manuel; Sánchez-Dehesa Moreno-Cid, José(Elsevier, 2013-01)
[EN] We report acoustic barriers that are designed to attenuate efficiently broadband noise. The barriers are structures consisting of only three layers of cylindrical units containing rubber crumb, a sound absorbing ...
Chen, Jiangang; Hou, Gary Y.; Marquet, Fabrice; Han, Yang; Camarena Femenia, Francisco; Konofagou, Elisa(IOP Publishing: Hybrid Open Access, 2015-10-07)
Acoustic attenuation represents the energy loss of the propagating wave
through biological tissues and plays a significant role in both therapeutic and
diagnostic ultrasound applications. Estimation of acoustic attenuation ...
New applications of non-destructive techniques (NDT) with ultrasonic tests (attenuation and velocity by means of ultrasonic frequency sweeps) have been developed for the characterization of fibre-reinforced cementitious ...