Search results for: Juan J. Rodríguez

Items from 1 to 20 out of 178 results

article

A cost-effective stereo camera-based system for measuring crack propagation in fibre-reinforced concrete

Álvaro Mena-Alonso, Pedro Latorre-Carmona, Dorys C. González, José F. Díez-Pastor, more

Archives of Civil and Mechanical Engineering > 2023 > Vol. 23, no. 3 > art. no. e192, 2023

This paper shows a new low-cost technology for the measurement of crack propagation in quasi-fragile materials based on a stereo pair of cameras and LED light spots. The two cameras record the displacement experienced by a series of LED white lights. For each frame, the X, Y and Z 3D coordinates of all the centroids of the LED points are obtained. From this information, it is possible to determine...

article

β3 adrenergic agonist treatment in chronic pulmonary hypertension associated with heart failure (SPHERE‐HF): a double blind, placebo‐controlled, randomized clinical trial

Ana García‐Álvarez, Isabel Blanco, Inés García‐Lunar, Paloma Jordà, more

European Journal of Heart Failure > 25 > 3 > 373 - 385

Aims Pulmonary hypertension (PH) associated with left heart disease is an increasingly prevalent problem, orphan of targeted therapies, and related to a poor prognosis, particularly when pre‐ and post‐capillary PH combine. The current study aimed to determine whether treatment with the selective β3 adrenoreceptor agonist mirabegron improves outcomes in patients with combined pre‐ and post‐capillary...

article

High penetrance of inferior vena cava system atresia in severe thrombophilia caused by homozygous antithrombin Budapest 3 variant: Description of a new syndrome

María E. Morena‐Barrio, Réka Gindele, Carlos Bravo‐Pérez, Péter Ilonczai, more

American Journal of Hematology > 96 > 11 > 1363 - 1373

Atresia of inferior vena cava (IVC) is a rare congenital malformation associated with high risk of venous thrombosis that still has unknown etiology, although intrauterine IVC thrombosis has been suggested to be involved. The identification of IVC atresia in a case with early idiopathic venous thrombosis and antithrombin deficiency caused by the homozygous SERPINC1 c.391C > T variant (p.Leu131Phe...

article

Biological oxidation of choline‐based ionic liquids in sequencing batch reactors

Ismael F Mena, Elena Diaz, Juan J Rodriguez, Angel F Mohedano

Journal of Chemical Technology & Biotechnology > 95 > 4 > 922 - 931

BACKGROUND Ionic liquids (ILs) are salts consisting of an organic cation and an organic or inorganic anion that are potential use for organic synthesis, biomass conversion, gas absorption, polymerization, metal extraction and lubrication. We examined the biodegradability of choline chloride (CholineCl), choline acetate (CholineAc) and choline bis(trifluoromethylsulfonyl)imide (CholineNTf₂) in a sequencing...

article

Thiamethoxam removal by Fenton and biological oxidation

Esther Gomez‐Herrero, Hafida Lebik‐ElHadi, Hamid Ait‐Amar, Montserrat Tobajas, more

Journal of Chemical Technology & Biotechnology > 95 > 4 > 913 - 921

BACKGROUND Thiamethoxam (TMX) is a potential insecticide pollutant of hydric resources that must be removed. Advanced oxidation processes (AOPs) are usually effective, but expensive to implement. Combining Fenton's reagent with biological oxidation circumvents the shortcomings of Fenton technology, facilitating the biodegradation of the resulting effluents in a sequencing batch reactor (SBR). RESULTS...

article

Combining univariate approaches for ensemble change detection in multivariate data

William J. Faithfull, Juan J. Rodríguez, Ludmila I. Kuncheva

Information Fusion > 2019 > 45 > C > 202-214

Detecting change in multivariate data is a challenging problem, especially when class labels are not available. There is a large body of research on univariate change detection, notably in control charts developed originally for engineering applications. We evaluate univariate change detection approaches —including those in the MOA framework — built into ensembles where each member observes a feature...

article

Catalytic reduction of bromate over catalysts based on Pd nanoparticles synthesized via water-in-oil microemulsion

Ana M. Perez-Coronado, Olivia Salome G.P. Soares, Luisa Calvo, Juan J. Rodriguez, more

Applied Catalysis B: Environmental > 2018 > 237 > C > 206-213

Supported Pd nanoparticles (NPs) synthesized via water-in-oil (w/o) microemulsion using the water/AOT/isooctane system were used as catalysts in the bromate reduction. In order to study the influence of the support on the catalytic activity, Pd NPs were immobilized on activated carbon (AC), multi-walled carbon nanotubes (CNT) and TiO₂. Different thermal treatments in air and nitrogen were carried...

article

Designing a benchmark for the performance evaluation of agent-based simulation applications on HPC

Andreu Moreno, Juan J. Rodríguez, Daniel Beltrán, Anna Sikora, more

The Journal of Supercomputing > 2019 > 75 > 3 > 1524-1550

Agent-based modeling and simulation (ABMS) is a class of computational models for simulating the actions and interactions of autonomous agents with the goal of assessing their effects on a system as a whole. Several frameworks for generating parallel ABMS applications have been developed taking advantage of their common characteristics, but there is a lack of a general benchmark for comparing the...

article

Perampanel in routine clinical use in idiopathic generalized epilepsy: The 12‐month GENERAL study

Vicente Villanueva, Javier Montoya, Ascension Castillo, José Á. Mauri‐Llerda, more

Epilepsia > 59 > 9 > 1740 - 1752

Objective To analyze the effectiveness and tolerability of perampanel across different seizure types in routine clinical care of patients with idiopathic generalized epilepsy (IGE). Methods This multicenter, retrospective, 1‐year observational study collected data from patient records at 21 specialist epilepsy units in Spain. All patients who were aged ≥12 years, prescribed perampanel before December...

article

Two‐step persulfate and Fenton oxidation of naphthenic acids in water

Xiyan Xu, Gema Pliego, Juan A Zazo, Shuming Liu, more

Journal of Chemical Technology & Biotechnology > 93 > 8 > 2262 - 2270

BACKGROUD In the current study, two‐step persulfate and Fenton oxidation has been investigated for the mineralization of naphthenic acids at 80 °C and initial pH ≈ 8. This pH evolves during the persulfate oxidation step towards the optimum for Fenton oxidation (≈ 3). The effects of persulfate and H₂O₂ doses, iron concentration, duration of the persulfate oxidation step and operating temperature have...

article

Activated carbon as catalyst for microwave-assisted wet peroxide oxidation of aromatic hydrocarbons

Alicia L. Garcia-Costa, Lucia Lopez-Perela, Xiyan Xu, Juan A. Zazo, more

Environmental Science and Pollution Research > 2018 > 25 > 28 > 27748- 27755

This paper addresses the removal of four aromatic hydrocarbons typically found in petrochemical wastewater: benzene (B), toluene (T), o-xylene (X), and naphthalene (N), by microwave-assisted catalytic wet peroxide oxidation (MW-CWPO) using activated carbon (AC) as catalyst. Under the studied conditions, complete pollutant elimination (B, 1.28 mM; T, 1.09 mM; X, 0.94 mM; and N, 0.78 mM) was achieved,...

article

Electrolysis with diamond anodes: Eventually, there are refractory species!

Ismael F. Mena, Salvador Cotillas, Elena Díaz, Cristina Sáez, more

Chemosphere > 2018 > 195 > C > 771-776

In this work, synthetic wastewater polluted with ionic liquid 1-butyl-3-methylimidazolium (Bmim) bis(trifluoromethanesulfonyl)imide (NTf₂) undergoes four electrolytic treatments with diamond anodes (bare electrolysis, electrolysis enhanced with peroxosulfate promoters, irradiated with UV light and with US) and results obtained were compared with those obtained with the application of Catalytic Wet...

article

Effect of structural ordering of the carbon support on the behavior of Pd catalysts in aqueous-phase hydrodechlorination

José A. Baeza, Luisa Calvo, Noelia Alonso-Morales, Francisco Heras, more

Chemical Engineering Science > 2018 > 176 > C > 400-408

Catalysts consisting of Pd supported on virgin and heat-treated carbon blacks (homemade and commercial), graphites (natural and synthetic) and commercial carbon nanofibers were prepared and tested in the aqueous phase hydrodechlorinaton (HDC) of 4-chlorophenol (4-CP) under near ambient conditions (30 °C, 1 atm) in order to explore the effect of the support on the catalytic behavior. The homemade graphitized...

article

Removal of imidazolium- and pyridinium-based ionic liquids by Fenton oxidation

Esther Gomez-Herrero, Montserrat Tobajas, Alicia Polo, Juan J. Rodriguez, more

Environmental Science and Pollution Research > 2018 > 25 > 35 > 34930- 34937

The oxidation of imidazolium (1-hexyl-3-methylimidazolium chloride, HmimCl) and pyridinium (1-butyl-4-methylpyridinium chloride, BmpyrCl) ionic liquids (ILs) by Fenton’s reagent has been studied. Complete conversion was achieved for both ILs using the stoichiometric H₂O₂ dose at 70 °C, reaching final TOC conversion values around 45 and 55% for HmimCl and BmpyrCl, respectively. The decrease in hydrogen...

article

Valorisation of the liquid fraction from hydrothermal carbonisation of sewage sludge by anaerobic digestion

John A Villamil, Angel F Mohedano, Juan J Rodriguez, M Angeles de la Rubia

Journal of Chemical Technology & Biotechnology > 93 > 2 > 450 - 456

BACKGROUND The mesophilic anaerobic digestion of the liquid fraction from hydrothermal carbonisation (208°C, 1 h) of dehydrated sewage sludge has been studied. Two initial inoculum concentrations (IC) (10 and 25 g COD L^‐1) and four inoculum to substrate ratios (ISR) (2, 1, 0.5 and 0.4 on a COD basis) have been selected to analyse their influence on the evolution of the anaerobic digestion process...

article

Polymer-based spherical activated carbon as catalytic support for hydrodechlorination reactions

Macarena Munoz, Veronika Kolb, Ana Lamolda, Zahara M. de Pedro, more

Applied Catalysis B: Environmental > 2017 > 218 > C > 498-505

In this work, polymer-based spherical activated carbon (PBSAC) (dp=500μm) has been used as support to synthesize several Pd/PBSAC (1%wt.) catalysts. These catalysts have been tested in the hydrodechlorination (HDC) of 4‐chlorophenol (4-CP) in aqueous phase under ambient-like conditions (30°C, 1atm) at [4-CP]₀=3.9mmolL⁻¹; [catalyst]₀=1gL⁻¹ and 50NmL H₂min⁻¹. A sequential calcination (200°C, air atmosphere)...

article

Microwave-assisted catalytic wet peroxide oxidation. Comparison of Fe catalysts supported on activated carbon and ?-alumina

Alicia L. Garcia-Costa, Juan A. Zazo, Juan J. Rodriguez, Jose A. Casas

Applied Catalysis B: Environmental > 2017 > 218 > C > 637-642

This paper studies the role of the catalytic support on microwave-assisted catalytic wet peroxide oxidation (MW-CWPO) with Fe as active phase. Experiments were carried out with and without MW using catalysts of Fe on activated carbon (Fe/AC) and gamma alumina (Fe/?-Al₂O₃). Phenol (100mg·L^-1) was used as target pollutant, operating at pH 3, 120°C, 100mg·L^-1 catalyst concentration and the theoretical...

article

Fixed-bed adsorption of ionic liquids onto activated carbon from aqueous phase

Jesús Lemus, Cristian Moya, Miguel A. Gilarranz, Juan J. Rodriguez, more

Journal of Environmental Chemical Engineering > 2017 > 5 > 6 > 5347-5351

Adsorption of ionic liquids (ILs) onto activated carbons (ACs) has been proposed as a thermodynamically and kinetically suitable treatment to remove and/or recover ILs from liquid phase. This work evaluates the potential of AC adsorption in a fixed-bed column to remove ILs from aqueous streams. Different operating conditions were evaluated including AC particle size (0.10mm–0.75mm) and surface liquid...

chapter

Measurement of air flow in newborn poultry transportation systems

Ricardo Pardo, Carlos Gonzalez, Jose Farina, Maria D. Valdes, more

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society > 3568 - 3573

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society

Decreasing profit margins and increasing concerns about animal welfare are boosting the interest for the development of monitoring and analysis technologies specifically targeting the poultry meat production process. In this context, this paper addresses one of the most critical steps of such process, the transportation of newborn animals from birth places to breeding farms. Specifically, an intelligent...

chapter

UviSpace — A multidisciplinary PBL system based on mobile robots

Javier Lopez-Randulfe, Juan J. Rodriguez-Andina, Jose Farina

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society > 3595 - 3600

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society

Education in industrial electronics-related subjects is very challenging because of the many different technological topics and application domains to be addressed. Mobile robotics is a very interesting area in this context, because it requires a wide coverage of many diverse topics and, at the same time, it is typically very appealing for engineering students. Therefore, mobile robot systems are...

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INFONA - science communication portal

Search results for: Juan J. Rodríguez

A cost-effective stereo camera-based system for measuring crack propagation in fibre-reinforced concrete

β3 adrenergic agonist treatment in chronic pulmonary hypertension associated with heart failure (SPHERE‐HF): a double blind, placebo‐controlled, randomized clinical trial

High penetrance of inferior vena cava system atresia in severe thrombophilia caused by homozygous antithrombin Budapest 3 variant: Description of a new syndrome

Biological oxidation of choline‐based ionic liquids in sequencing batch reactors

Thiamethoxam removal by Fenton and biological oxidation

Combining univariate approaches for ensemble change detection in multivariate data

Catalytic reduction of bromate over catalysts based on Pd nanoparticles synthesized via water-in-oil microemulsion

Designing a benchmark for the performance evaluation of agent-based simulation applications on HPC

Perampanel in routine clinical use in idiopathic generalized epilepsy: The 12‐month GENERAL study

Two‐step persulfate and Fenton oxidation of naphthenic acids in water

Activated carbon as catalyst for microwave-assisted wet peroxide oxidation of aromatic hydrocarbons

Electrolysis with diamond anodes: Eventually, there are refractory species!

Effect of structural ordering of the carbon support on the behavior of Pd catalysts in aqueous-phase hydrodechlorination

Removal of imidazolium- and pyridinium-based ionic liquids by Fenton oxidation

Valorisation of the liquid fraction from hydrothermal carbonisation of sewage sludge by anaerobic digestion

Polymer-based spherical activated carbon as catalytic support for hydrodechlorination reactions

Microwave-assisted catalytic wet peroxide oxidation. Comparison of Fe catalysts supported on activated carbon and ?-alumina

Fixed-bed adsorption of ionic liquids onto activated carbon from aqueous phase

Measurement of air flow in newborn poultry transportation systems

UviSpace — A multidisciplinary PBL system based on mobile robots

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