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Listar por palabra clave "Absorption"

Mostrando ítems 1-20 de 35

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Acoustic characteristics of circular dissipative reversing chamber mufflers

Denia, F. D.; Antebas, Antoine; Selamet, A.; Pedrosa Sanchez, Ana Maria (Institute of Noise Control Engineering, 2011)

[EN] In this work, a three-dimensional analytical model is presented for the propagation of sound in circular dissipative reversing chamber mufflers with perforated frontal plates and bulk-reacting fibrous material. The ...
Acoustic solution for phone calls in offices

Blanco Saura, Daniel; Pérez Llopis, Marina (Universitat Politècnica de València, 2019-12-11)

[ES] El problema que se ha tratado en esta tesis es el sonido generado en las oficinas de planta abierta al momento de hacer una llamada telefónica; hablar y escuchar de manera clara por teléfono y no molestar al resto de ...
Acoustic solution for phone calls in offices

Pérez Llopis, Marina (Universitat Politècnica de València, 2021-12-20)

[EN] The problem that has been treated in this thesis is the sound generated in open-plan offices at the time of making a phone call; to talk and listen clearly by the phone and not disturbing the rest of the workers. The ...
Análisis de emisiones y diseño de sistemas de tratamiento de gases contaminantes en una industria química

Ayala Martí, José Antonio (Universitat Politècnica de València, 2021-10-15)

[ES] La lucha contra la contaminación se plantea actualmente como uno de los principales retos a nivel mundial, siendo cada vez más preocupantes las consecuencias de los elevados niveles de contaminantes en la atmósfera. ...
Assessment of properties of recycled concrete by means of a highly fractioned factorial design of experiment

López-Gayarre, F.; Lopez-Colina, C.; Serrano-Lopez, M.A.; García Taengua, Emilio José; Lopez Martinez, A. (Elsevier, 2011-10)

The study presented in this paper has been carried out using a highly fractional factorial experimental design. This design allows the analysis of a greater number of factors and levels with a reduced number of mixes. In ...
Contribution to the modelling of the light field distribution within Synechocystis sp. PCC 6803 cultures and its influence on cellular photosynthesis processes

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 ...
Control of electromagnetic energy by metamaterials

Díaz Rubio, Ana (Universitat Politècnica de València, 2015-09-01)

[EN] Metamaterials are periodic structures whose unit cells are small compared to the wavelength at the operating frequency. Under these conditions, these artificial materials can be considered as homogeneous media whose ...
Desarrollo de metasuperficies dieléctricas para aplicaciones de baja observabilidad compatibles con la fabricación aditiva

Chen, Yilong (Universitat Politècnica de València, 2024-09-26)

[ES] Con el objetivo de reducir difracción y controlar la observabilidad radar en el régimen de microondas, este trabajo estudia metasuperficies totalmente dieléctricas que controlan la absorción en el régimen de microondas. ...
Dithiopyr Controls Common Lespedeza (Kummerowia striata) in Bermudagrass

Gómez De Barreda, Diego; Singh, Rashmi; Sidhu, Sudeep S.; McCullough, Patrick E. (Weed Science Society of America, 2015-04)

[EN] Common lespedeza is a problematic summer annual weed in bermudagrass lawns, with limited PRE herbicides available for control. Dithiopyr is a pyridine herbicide primarily used for PRE grassy weed control but has shown ...
Efecto en la reverberación de un restaurante de diferentes soluciones constructivas para el techo del mismo.

Villaplana Sáez, Gema (Universitat Politècnica de València, 2022-01-10)

[CA] En aquest treball final de grau, primerament, hem definit les teories acústiques que anàvem a utilitzar, com és el so, el temps de reverberació, l'absorció dels materials, etc. A continuació, s'ha definit una ...
Electronically excited states of DNA oligonucleotides with disordered base sequences studied by fluorescence spectroscopy

Vayá Pérez, Ignacio; Brazard, J.; Gustavsson, T.; Markovitsi, D. (Royal Society of Chemistry, 2012)

[EN] DNA double-stranded oligomers are studied by steady-state and time-resolved fluorescence spectroscopy from the femtosecond to the nanosecond time-scale, following excitation at 267 nm. It is shown that emission arises ...
Enhanced Drug Photosafety by Interchromophoric Interaction Due to Intramolecular Charge Separation

Li, Ming-De; Yan, Zhiping; Zhu, Ruixue; Phillips,David Lee; Aparici-Espert, Maria Isabel; Lhiaubet, Virginie Lyria; Miranda Alonso, Miguel Ángel (John Wiley & Sons, 2018-05-02)

[EN] Imatinib is a synthetic tyrosinase inhibitor that is employed for the treatment of some kinds of human cancer. This drug has a low phototoxicity towards DNA, but its pyridylpyrimidine (1) fragment by itself exhibits ...
Enhanced transmission band in periodic media with loss modulation

Cebrecos Ruiz, Alejandro; Picó Vila, Rubén; Romero García, Vicente; Yasser, A. M.; Maigyte, L.; Herrero, R.; Botey, M.; Sánchez Morcillo, Víctor José; Staliünas, Kestutis (American Institute of Physics (AIP), 2014-11-17)

We study the propagation of waves in a periodic array of absorbing layers. We report an anomalous increase of wave transmission through the structure related to a decrease of the absorption around the Bragg frequencies. ...
Estimation of a suitable Schmidt number range in diesel sprays at high injection pressure

Salvador Rubio, Francisco Javier; Ruiz Rosales, Santiago; Gimeno, Jaime; De La Morena Borja, Joaquín (Elsevier, 2011-09)

The aim of this paper is to estimate a suitable range for the Schmidt number value in non-evaporative diesel sprays. For this purpose, mass distribution data obtained from X-ray absorption experiments existing in literature ...
Exact, integrated and complete solutions for composite flywheels

Pérez-Aparicio, José L.; Ripoll, L. (Elsevier, 2011)

An integrated general formulation for the analysis and design of flywheel rotors made out of composite material is developed. To have an accurate estimation of stresses in the rotor, all the effects present in the literature ...
Extraordinary absorption of sound in porous lamella-crystals

Christensen, Johan; Romero García, Vicente; Picó Vila, Rubén; Cebrecos Ruiz, Alejandro; Garcia de Abajo, Francisco Javier; Mortensen, N. A.; Willatzen, M.; Sánchez Morcillo, Víctor José (Nature Publishing Group: Open Access Journals - Option C, 2014-04-14)

We present the design of a structured material supporting complete absorption of sound with a broadband response and functional for any direction of incident radiation. The structure which is fabricated out of porous ...
Influence of limestone filler and viscosity-modifying admixture on the porous structure of self-compacting concrete

Valcuende Payá, Manuel Octavio; Parra, C.; Marco Serrano, Empar; Garrido, A.; Martínez, E.; Canovés Valiente, Jacinto José (Elsevier, 2012-03)

The objective of this experimental work is to study porosity in self-compacting concrete (SCC) made without adding limestone filler, comparing the results with other SCC and with normally-vibrated concrete (NVC). Several ...
Instrument for sunlight extinction measurement in water bodies

Ibáñez Civera, Francisco Javier; Romero Gil, Inmaculada; Laguarda Miró, Nicolás; García Breijo, Eduardo; Gil Sánchez, Luís; Martínez Guijarro, Mª Remedios (Elsevier, 2011-08-10)

It is presented a new instrument specially developed to measure sunlight extinction in water bodies. It uses commercial photodiodes with no monochromatic sensitive band and it is based on the use of absorbance data for ...
Integration of rural architectural heritage: The case of the alquerías in northern Valencia

Calvignac, Daphné; Baró Zarzo, José; Debailleux, Laurent (Editorial Universitat Politècnica de València, 2023-05-22)

[EN] This work deals with the conservation and integration of the so-called “alquerías”, the traditional rural houses scattered in the historical agricultural landscape of the Huerta de Valencia, which has been surrounding ...
Light distribution and spectral composition within cultures of micro-algae: Quantitative modelling of the light field in photobioreactors

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 ...