Visualitzant ESID_Articles per títol
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Poly(3-Hydroxybutyrate-co-3-Hydroxyvalerate)/ Purifi ed Cellulose Fiber Composites by Melt Blending: Characterization and Degradation in Composting Conditions
Tech Science Press (2016)Novel biodegradable composites based on poly(3-hydroxybutirate-co-3-hydroxyvalerate) (PHBV) and different contents of purifi ed alpha-cellulose fi bers (3, 10, 25 and 45%) were prepared by melt blending and characterized. ... -
Polynomial Fuzzy Models for Nonlinear Control: A Taylor Series Approach
Institute of Electrical and Electronics Engineers (IEEE) (2009-12)Classical Takagi-Sugeno (T-S) fuzzy models are formed by convex combinations of linear consequent local models. Such fuzzy models can be obtained from nonlinear first-principle equations by the well-known sector-nonlinearity ... -
Polytopic invariant and contractive sets for closed-loop discrete fuzzy systems
Elsevier (2014)In this work a procedure for obtaining polytopic λ-contractive sets for Takagi-Sugeno fuzzy systems is presented, adapting well-known algorithms from literature on discrete-time linear difference inclusions (LDI) to ... -
Positive-Net-Damping Stability Criterion in Grid-Connected VSC Systems
Institute of Electrical and Electronics Engineers (IEEE) (2017-05)Resonance instabilities in power systems can be assessed with the positive-net-damping stability criterion. This criterion is a review of the complex torque coefficients method but it does not provide the frequency of the ... -
Post-processing optimization of electrospun submicron poly(3-hydroxybutyrate) fibers to obtain continuous films of interest in food packaging applications
Taylor & Francis (2017-08-08)Polyhydroxyalkanoates (PHAs) are one of the most researched family of biodegradable polymers based on renewable materials due to their thermoplastic nature and moisture resistance. The present study was targeted to investigate ... -
Power factor improvement in a solid–liquid thermoelectric system formed by Sb:SnO2 in contact with a chromium complex solution
Royal Society of Chemistry (2023)Thermoelectric (TE) materials can convert heat into electricity. Good TE materials should have high power factors (PF) and low thermal conductivities. PF = S2σ is governed by the Seebeck coefficient S and the electrical ... -
Power management strategies and energy storage needs to increase the operability of photovoltaic plants
American Institute of Physics (2012)This paper analyzes the effect of introducing an energy storage (ES) system in an intermittent renewable energy power plant such as a photovoltaic (PV) installation. The aim of this integration is to achieve an improvement ... -
Prácticas artísticas en la época del dataceno. Data Biography: rastros digitales para la exploración biográfica de la identidad personal
Universitat Oberta de Catalunya (2019)Cada vez más detalles de nuestra vida son registrados y almacenados para formar parte de lo que ha venido a llamarse big data. Nuestra vida, en todos sus aspectos, deja un rastro digital que se actualiza continuamente ... -
Predictive Power Control for PV Plants With Energy Storage
Institute of Electrical and Electronics Engineers (IEEE) (2013)This work presents a model predictive control (MPC) approach to manage in real-time the energy generated by a grid-tied photovoltaic (PV) power plant with energy storage (ES), optimizing its economic revenue. This MPC ... -
Prensado, con métodos de la cerámica plana, de piezas cerámicas curvas con especificaciones geométricas de elevada precisión
Sociedad Española de Cerámica y Vidrio (2012-03)In order to obtain high-precision three-dimensional pieces by dry pressing, two approaches were studied: modelling the material flow and strain during pressing; and evaluating the bulk density (Da) distribution in a pressed ... -
Preparation and Characterization of Electrospun Food Biopackaging Films of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Derived From Fruit Pulp Biowaste
Frontiers Media (2018-07)In the present study, circular economy based and potentiall y low-cost poly(3-hydroxybutyrate- co -3-hydroxyvalerate) (PHBV) was produced by mixed microbia l cultures derived from fruit pulp, an industrial ... -
Preparation of nanocrystalline TiO2 electrodes for flexible dye-sensitized solar cells: influence of mechanical compression
American Chemical Society (2012)Nanocrystalline TiO2 electrodes were prepared using binder-free TiO2 paste on conductive ITO-PEN substrates by the doctor-blade method at significantly low temperature (140 °C), and the electrodes were further processed ... -
Prismatic Spreading–Constriction Expression for the Improvement of Impedance Spectroscopy Models and a More Accurate Determination of the Internal Thermal Contact Resistances of Thermoelectric Modules
American Chemical Society (2023-06-27)Thermoelectric (TE) devices can convert heat to electrical power or use electrical power to generate a temperature difference. Their characterization is essential to develop devices with higher efficiency. Impedance ... -
Procesado del ácido poliláctico (PLA) y de nanocompuestos PLA/montmorillonita en planta piloto: Estudio de sus cambios estructurales y de su estabilidad térmica
Asociación de Químicos e Ingenieros del Instituto Químico de Sarrià (2010)Se aplican procesos de transformación y tratamiento de termoplásticos (inyección, extrusión-inyección y recocido) al ácido poliláctico (PLA) y a determinados nanocompues- tos PLA/montmorillonita, con objeto de estudiar las ... -
Proceso de transformación de la documentación gráfica arquitectónica en modelos táctiles
Asociación de profesores de expresión gráfica aplicada a la edificación (APEGA) (2018)El patrimonio arquitectónico, como ejemplo de expresión sensorial, frecuentemente no está al alcance de personas con discapacidad visual. El objetivo del presente artículo es mostrar las investigaciones que se han realizado ... -
Process-oriented tolerancing using the extended stream of variation model
Elsevier (2013-06)Current works on process-oriented tolerancing for multi-station manufacturing processes (MMPs) have been mainly focused on allocating fixture tolerances to ensure part quality specifications at a minimum manufacturing cost. ... -
Processing of poly(lactic acid)/organomontmorillonite nanocomposites: microstructure, thermal stability and kinetics of the thermal decomposition
Elsevier (2011-12-15)The degradation during the melt processing of poly(lactic acid) (PLA) and its nanocomposites with different contents (0.5 and 2.5%) of an organomodified montmorillonite (OMMT) promoted physical and chemical changes in their ... -
Project-based experience through real manufacturing activities in mechanical engineering
Sage (2018-07)As reported by many professional bodies responsible for accrediting engineering programs, today’s engineering graduates present important limitations in the practice of engineering because current engineering curricula ... -
Propiedades mécanicas y tribólogicas de recubrimientos alumina/titania proyectados por oxifuel (spray llama)
Sociedad Española de Cerámica y Vidrio (2008)En este trabajo se ha estudiado, las fases, las propiedades mecánicas y la resistencia al desgaste abrasivo de recubrimientos cerámicos alumina/titania proyectados por el proceso de oxifuel (spray llama). La proporción de ... -
Protection Strategies for the Connection of Diode Rectifier-Based Wind Power Plants to HVdc Interconnectors
Institute of Electrical and Electronics Engineers (2020-10-05)The connection of diode rectifier (DR)-based wind power plants (WPPs) to existing or planned high-voltage dc (HVdc) interconnectors can lead to important savings on cost and system robustness. Since the DR station usually ...