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Listar por palabra clave "Dielectric measurements"

Mostrando ítems 1-8 de 8

Amine-functionalized mesoporous silica: A material capable of CO2 adsorption and fast regeneration by microwave heating

Nigar, Hakan; García-Baños, Beatriz; Penaranda-Foix, Felipe L.; Catalá Civera, José Manuel; Mallada, Reyes; Santamaria, Jesus (Wiley, 2016-02)

The surface of ordered mesoporous (MCM-48) silica has been subjected to covalent grafting with silane molecules containing one to three amino groups. The dielectric properties of the materials were studied in detail, and ...
Characterization method of dielectric properties of free falling drops in a microwave processing cavity and its application in microwave internal gelation

Cabanes Sempere, Maria; Catalá Civera, José Manuel; Penaranda-Foix, Felipe L.; Cozzo, Carmelo; Vaucher, S.; Pouchon, M. A. (IOP Publishing: Hybrid Open Access, 2013-09)

[EN] Microwave internal gelation (MIG) is a chemical process proposed for the production of nuclear particle fuel. The internal gelation reaction is triggered by a temperature increase of aqueous droplets falling by gravity ...
Development of a dielectric spectroscopy technique for the determination of key bichemical markers of meat quality

Castro Giráldez, Marta; Dols, Laura; Toldrá Vilardell, Fidel; Fito Maupoey, Pedro (Elsevier, 2011-07-01)

[EN] Dielectric measurements of different standard solutions (nucleotides, nucleosides, lactic acid and myoglobin) were assayed simulating the concentrations of these substances in early postmortem meat. These assays were ...
Dielectric monitoring of the PAN fiber stabilization process

Hofele, Julia; Jung, M.; Link, Guido; Jelonnek, John (Editorial Universitat Politècnica de València, 2019-10-15)

[EN] The production of carbon fibers based on Polyacrylonitrile (PAN) precursor fibers is a very energy intensive process. In order to increase the energy efficiency, microwave plasma processes and, alternatively, ...
Enhanced Full-Wave Circuit Analysis for Modeling of a Split Cylinder Resonator

Marqués-Villarroya, David; Penaranda-Foix, Felipe L.; García-Baños, Beatriz; Catalá Civera, José Manuel; Gutiérrez Cano, José Daniel (Institute of Electrical and Electronics Engineers, 2017)

[EN] An enhanced full-wave method based on circuit analysis is presented in this paper, where the whole set of modes TEmnp and TMmnp are taken into account. The modeling of a split cylinder resonator is done with two circuit ...
Full-wave analysis of dielectric-loaded cylindrical waveguides and cavities using a new four-port ring network

Penaranda-Foix, Felipe L.; Janezic, Michael D.; Catalá Civera, José Manuel; Canós Marín, Antoni Josep (Institute of Electrical and Electronics Engineers (IEEE), 2012-09)

In this paper, a full-wave method for the electromagnetic analysis of dielectric-loaded cylindrical and coaxial waveguides and cavities is developed. For this purpose, a new four-port ring network is proposed, and the ...
Improvement in the Accuracy of Dielectric Measurement of Open-Ended Coaxial Resonators by an Enhanced De-Embedding of the Coupling Network

Canós Marín, Antoni Josep; García Baños, Beatriz; Catalá Civera, José Manuel; Penaranda-Foix, Felipe L.; Gutiérrez Cano, José Daniel (Institute of Electrical and Electronics Engineers (IEEE), 2013-12)

An improvement of the accuracy of dielectric measurements of the open-ended coaxial resonator method is described. The technique is based on an empirical technique for de-embedding the coupling network excited by electric ...
Low frequency dielectric measurements to assess post-mortem ageing of pork meat

Castro Giráldez, Marta; Toldrá Vilardell, Fidel; Fito Maupoey, Pedro (Elsevier, 2011-07)

[EN] The use of dielectric properties at low frequencies to estimate the progress of pork meat (Longissimus dorsi) ageing was evaluated. Dielectric measurements were perfomed at 140 Hz, 1 kHz and 300 kHz in perpendicular ...