Search Results - "Marqués, Ricardo"

Structural tunability in metamaterials by Lapine, Mikhail, Powell, David, Gorkunov, Maxim, Shadrivov, Ilya, Marqués, Ricardo, Kivshar, Yuri

“…We propose an efficient approach for tuning the transmission characteristics of metamaterials through a continuous adjustment of the lattice structure and…”
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Application of a capacitively-loaded split-ring metamaterial lens in a 0.3 T magnetic resonance imaging system by Freire, Manuel J., Tornero, Jesus, Marqués, Ricardo

“…In this work, it is demonstrated that metamaterial lenses can help to increase the signal-to-noise ratio of magnetic resonance imaging coils in low-field…”
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Babinet's principle and saturation of the resonance frequency of scaled-down complementary metasurfaces by Ortiz, Julián D., Baena, Juan D., Marqués, Ricardo, Enemuo, Amarachukwu N., Gollub, Jonah, Akhmechet, Roman, Penkov, Boyan, Sarantos, Chris, Crouse, David T.

“…It has been previously demonstrated that the resonant frequency of the Split Ring Resonator (SRR) reaches a saturation value when its size is continuously…”
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Extraordinary Transmission Through Arrays of Electrically Small Holes From a Circuit Theory Perspective by Medina, F., Mesa, F., Marques, R.

“…Extraordinary optical transmission of light or electromagnetic waves through metal plates periodically perforated with subwavelength holes has been…”
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Artificial magnetic metamaterial design by using spiral resonators by Baena, Juan D., Marqués, Ricardo, Medina, Francisco, Martel, Jesús

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Microwave filters with improved stopband based on sub-wavelength resonators by Garcia-Garcia, J., Martin, F., Falcone, F., Bonache, J., Baena, J.D., Gil, I., Amat, E., Lopetegi, T., Laso, M.A.G., Iturmendi, J.A.M., Sorolla, M., Marques, R.

“…The main aim of this paper is to demonstrate the potentiality of sub-wavelength resonators, namely, split-ring resonators, complementary split-ring resonators,…”
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Miniaturized coplanar waveguide stop band filters based on multiple tuned split ring resonators by Martin, F., Falcone, F., Bonache, J., Marques, R., Sorolla, M.

“…A novel compact stop band filter consisting of a 50 /spl Omega/ coplanar waveguide (CPW) with split ring resonators (SRRs) etched in the back side of the…”
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Spurious passband suppression in microstrip coupled line band pass filters by means of split ring resonators by Garcia-Garcia, J., Martin, F., Falcone, F., Bonache, J., Gil, I., Lopetegi, T., Laso, M.A.G., Sorolla, M., Marques, R.

“…In this letter, spurious passband suppression in microstrip coupled line band pass filters by means of split ring resonators (SRRs) is demonstrated for the…”
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Image acceleration in parallel magnetic resonance imaging by means of metamaterial magnetoinductive lenses by Freire, Manuel J., Lopez, Marcos A., Algarin, Jose M., Breuer, Felix, Marqués, Ricardo

“…Parallel Magnetic Resonance imaging (pMRI) is an image acceleration technique which takes advantage of localized sensitivities of multiple receivers. In this…”
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A new LC series element for compact bandpass filter design by Martel, J., Marques, R., Falcone, F., Baena, J.D., Medina, F., Martin, F., Sorolla, M.

“…A new LC series element based on a modified version of the split rings resonator introduced in is proposed. Owing to its small electrical size, the new open…”
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Left handed coplanar waveguide band pass filters based on bi-layer split ring resonators by Falcone, F., Martin, F., Bonache, J., Marques, R., Lopetegi, T., Sorolla, M.

“…A new type of compact band pass filters based on planar structures with three metal levels is proposed. The central layer consists on a coplanar waveguide…”
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Magnetoinductive metasurface of capacitively-loaded split rings for local field homogenization in a 7 T MRI birdcage: A simulation study by Freire, Manuel J, Marqués, Ricardo, Tornero, Jesús

“…The transmit field B in a 7 T birdcage is inherently inhomogeneous due to the effects of wavelengths on tissue. This work investigates the homogenization of…”
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Metabolism and ecological niche of Tetrasphaera and Ca. Accumulibacter in enhanced biological phosphorus removal by Marques, Ricardo, Santos, Jorge, Nguyen, Hien, Carvalho, Gilda, Noronha, J.P., Nielsen, Per Halkjær, Reis, Maria A.M., Oehmen, Adrian

“…Tetrasphaera and Candidatus Accumulibacter are two abundant polyphosphate accumulating organisms in full-scale enhanced biological phosphorus removal (EBPR)…”
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Structural, morphological, and physicochemical properties of acetylated high-, medium-, and low-amylose rice starches by Colussi, Rosana, Pinto, Vania Zanella, El Halal, Shanise Lisie Mello, Vanier, Nathan Levien, Villanova, Franciene Almeida, Marques e Silva, Ricardo, da Rosa Zavareze, Elessandra, Dias, Alvaro Renato Guerra

“…•Low-amylose rice starch was more susceptible to acetylation.•Acetylated starches presented hydrophobic characteristics.•The crystallinity and viscosity…”
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Biological image classification using rough-fuzzy artificial neural network by Affonso, Carlos, Sassi, Renato Jose, Barreiros, Ricardo Marques

“…•We propose an inference mechanism to classify biological samples (wood) through it images.•We construct characteristic vectors using fuzzy rules to represent…”
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Minimizing N2O emissions and carbon footprint on a full-scale activated sludge sequencing batch reactor by Rodriguez-Caballero, A., Aymerich, I., Marques, Ricardo, Poch, M., Pijuan, M.

“…A continuous, on-line quantification of the nitrous oxide (N2O) emissions from a full-scale sequencing batch reactor (SBR) placed in a municipal wastewater…”
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Computer vision system for workpiece referencing in three-axis machining centers by de Araujo, Paulo Ricardo Marques, Lins, Romulo Gonçalves

“…Computer vision applications in the industry have been a constant field of research in the academic community. Industrial daily challenges such as object…”
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Effective negative-ε stopband microstrip lines based on complementary split ring resonators by FALCONE, Francisco, LOPETEGI, Txema, BAENA, Juan D, MARQUES, Ricardo, MARTIN, Ferran, SOROLLA, Mario

“…In this letter a super-compact stopband microstrip structure is proposed. The frequency gap is produced by an array of complementary split ring resonators…”
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Design of Wide-Band Semi-Lumped Bandpass Filters Using Open Split Ring Resonators by Martel, J., Bonache, J., Marques, R., Martin, F., Medina, F.

“…Open split ring resonators (OSRRs) are used in this letter to design wide-band semi-lumped bandpass filters. OSRRs work as lumped LC series elements due to…”
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Remaining useful life prediction of laminated composite materials using Thermoelastic Stress Analysis by Marques, Ricardo, Unel, Mustafa, Yildiz, Mehmet, Suleman, Afzal

“…Estimation of the remaining useful life (RUL) based on the elastic strain energy density using the non-contacting and full-field capabilities of Thermoelastic…”
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