Exploració per autor "Riba Ruiz, Jordi-Roger"
Ara es mostren els items 80-99 de 168
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Identificación de muestras de papel mediante espectrometria IR y métodos multivariables
Riba Ruiz, Jordi-Roger (2012-04-01)
Article
Accés obertActualmente en todo el mundo se consume una gran cantidad de papel reciclado. Ello ha provocado la fabricación de papel que contiene muchos tipos de impurezas, por lo que las empresas papeleras se están viendo con la ... -
Identification of natural rubber samples for high-voltage insulation applications
Riba Ruiz, Jordi-Roger; González, Neudys; Canals, Trini; Cantero, Rosa (Pergamon Press, 2019-01-25)
Article
Accés obert -
Identification of NR and EPDM samples by means of thermogravimetric analysis and multivariate methods
Riba Ruiz, Jordi-Roger; Canals Parelló, Trini; Cantero Gómez, María Rosa (2016-11-01)
Article
Accés obertProducts based on ethylene-propylene-diene m-class (EPDM) and natural rubber (NR) are widely used in a different applications, including the automotive industry, heating, ventilation, and air conditioning applications, ... -
Improvement of dielectric properties of natural rubber by adding perovskite nanoparticles
González, Neudys; Riba Ruiz, Jordi-Roger; Lalaouna, Saïd; Custal, Mariàngels; Armelín Diggroc, Elaine Aparecida (2016-02)
Article
Accés obertNatural rubber matrix, reinforced with several conventional stabilizer additives, was further charged with perovskite nanoparticles. Although the addition of BaTiO3 ceramic particles usually transforms a non-conducting ... -
Improvement of insulation effectiveness of natural rubber by adding hydroxyl-functionalized barium titanate nanoparticles
González Gómez, Neudys; Riba Ruiz, Jordi-Roger; Custal, Maria del Àngels; Armelín Diggroc, Elaine Aparecida (2017-10-11)
Article
Accés obertNatural rubber (NR) products are being applied in many protective tools for life-line applications, including insulating boots, blankets, sleeves, insulating gloves, or flexible coverings. Due to the inherent risk of such ... -
Industrial ecology as a planning approach for a sustainable tanning industrial estate
Notarnicola, Bruno; Raggi, Andrea; Puig Vidal, Rita; Argelich, Montse; Solé Gustems, Miquel; Bautista, Sonia; Riba Ruiz, Jordi-Roger; Fullana Palmer, Pere; Gazulla, Cristina; Calvet Puig, Maria Dolors (2008)
Article
Accés restringit per política de l'editorial -
Influence of ZnO and TiO2 particle sizes in the mechanical and dielectric properties of vulcanized rubber
González Gómez, Neudys; Custal, Maria del Àngels; Rodríguez, Daniel; Riba Ruiz, Jordi-Roger; Armelín Diggroc, Elaine Aparecida (2017-07-01)
Article
Accés obertThe novelty of the present study relies on the straightforward sonication of ZnO and TiO2 and incorporation to a complex formulation of latex, with other several organic-inorganic additives that influences the cross-linking ... -
Insulation failure quantification based on the energy of digital images using low-cost imaging sensors
Riba Ruiz, Jordi-Roger; Gómez-Pau, Álvaro; Moreno Eguilaz, Juan Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2020-12-16)
Article
Accés obertInsulation faults in high-voltage applications often generate partial discharges (PDs) accompanied by corona activity, optical radiation mainly in the ultraviolet (UV) and visible bands. Recent developments in low-cost, ... -
Inter-turn fault detection in five-phase PMSMs. Effects of the fault severity
Saavedra Ordóñez, Harold; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper deals with the effects of inter-turn short circuit faults in five-phase permanent magnet synchronous motors (PMSMs). For this purpose a finiteelements model (FEM) of a faulty machine with 1, 2 and 4 inter-turns ... -
La Experiencia del equipo ETSEIB-ELISAVA en la Barcelona Smart Moto Challenge: Un proyecto Learning-by-doing de diseño e ingeniería
Moreno Eguilaz, Juan Manuel; García Espinosa, Antonio; Riba Ruiz, Jordi-Roger; Ortega Redondo, Juan Antonio; Romeral Martínez, José Luis; Hernández Chiva, Emilio (Congrés Internacional de Docència Universitària i Innovació (CIDUI), 2014)
Comunicació de congrés
Accés restringit per política de l'editorialSe describe una experiencia docente pionera basada en el clásico concepto“learning-by-doing”, en la que diseño e ingeniería se unen para obtener un producto de mercado. En concreto, se describen los retos planteados así ... -
LCA of forest chips versus diesel boilers in the Mediterranean region
Esteban Dalmau, Bernat; Baquero Armans, Grau; Puig Vidal, Rita; Riba Ruiz, Jordi-Roger; Rius Carrasco, Antoni (2011)
Text en actes de congrés
Accés restringit per decisió de l'autorABSTRACT: Obtaining energy from forest chips is a technology widely used in many regions. There are currently many studies and applications on the use of forest biomass [1,2], mainly promoted by policies aimed to reduce ... -
Linking digital image intensity to carrier density in low-pressure corona discharges
Riba Ruiz, Jordi-Roger (Elsevier, 2023-06)
Article
Accés restringit per política de l'editorialThe electrification of transportation, and aircraft electrification in particular, is experiencing rapid development due to the more efficient use of energy. Since the dielectric strength of air decreases at the cruising ... -
Low-cost online contact resistance measurement of power connectors to ease predictive maintenance
Kadechkar, Akash; Moreno Eguilaz, Juan Manuel; Riba Ruiz, Jordi-Roger; Capelli, Francesca (2019-03-12)
Article
Accés obertWith the increasing use of sensors and wireless communication systems, predictive maintenance is acquiring more and more importance to assess the condition of in-service equipment. Predictive maintenance presents promising ... -
Low-pressure optical detection, location, and quantification of electrical discharges in aircraft Wwring systems
Bas Calopa, Pau; Riba Ruiz, Jordi-Roger; Ortega Redondo, Juan Antonio (Multidisciplinary Digital Publishing Institute (MDPI), 2022-12-21)
Article
Accés obertStrict regulations issued by international administrative bodies limit the CO2 equivalent emissions for new aircraft, while increasing efficiency requirements. To reach this goal, next generations of aircraft will use more ... -
Magnet shape influence on the performance of AFPMM in a torus configuration
Saavedra Ordóñez, Harold; Riba Ruiz, Jordi-Roger; Hernández Guiteras, Joan; Romeral Martínez, José Luis (2013)
Text en actes de congrés
Accés restringit per política de l'editorialThe axial flux permanent magnet machine (AFPMM)is being increasingly demanded for special applications, particularly for transportation systems and concretely for inwheel applications. In this paper the effect of the magnets ... -
Magnet shape influence on the performance of AFPMM with demagnetization
Saavedra Ordóñez, Harold; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (IEEE Industrial Electronics Society, 2013)
Text en actes de congrés
Accés obertIn this paper the effect of the magnets shape on the AFPMM performance under a demagnetization fault has been analyzed by means of 3D-FEM simulations. Demagnetization faults in permanent magnet synchronous motors (PMSMs) ... -
Mathematical modeling of battery degradation based on direct measurements and signal processing methods
Vega Hernández, Joaquín de la; Riba Ruiz, Jordi-Roger; Ortega Redondo, Juan Antonio (Multidisciplinary Digital Publishing Institute, 2023-04-14)
Article
Accés obertThis paper proposes and evaluates the behavior of a new health indicator to estimate the capacity fade of lithium-ion batteries and their state of health (SOH). This health indicator is advantageous because it does not ... -
Measurement of corona discharges under variable geometry, frequency and pressure environment
Bas Calopa, Pau; Riba Ruiz, Jordi-Roger; Moreno Eguilaz, Juan Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2022-02-26)
Article
Accés obertAeronautical industry is evolving towards more electric aircrafts (MEA), which will require much more electrical power compared to conventional models. To satisfy this increasing power demand and stringent weight requirements, ... -
Mixed resistive unbalance and winding inter-turn faults model of permanent magnet synchronous motors
Urresty Betancourt, Julio; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis; Ortega Redondo, Juan Antonio (2015-03-01)
Article
Accés obertThis work analyzes the behavior of surface-mounted permanent magnet synchronous motors (SPMSMs) operating under stator faults. The studied faults are resistive unbalance and winding inter-turn short circuits, which may ... -
Modeling of a DC-DC bidirectional converter used in mild hybrid electric vehicles from measurements
Rojas Dueñas, Gabriel; Riba Ruiz, Jordi-Roger; Moreno Eguilaz, Juan Manuel (2021-10-13)
Article
Accés obertThis paper presents a non-intrusive approach for modeling a bidirectional DC-DC converter used in mild hybrid electric vehicles. A black-box identification methodology is proposed to find a model based on the data acquired ...