Now showing items 1-20 of 25

• #### A communication-less control scheme for a variable air-gap wireless energy transfer system using current source resonant converter ﻿

(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Restricted access - publisher's policy
This paper presents a robust control method for wireless energy transfer systems using current source resonant converter without any communication network. The proposed control strategy is valid even for systems with ...
• #### Anharmonicity in multifrequency atomic force microscopy ﻿

(2014-07)
External research report
Open Access
In multifrequency atomic force microscopy higher eigenmodes are externally excited to enhance resolution and contrast while simultaneously increasing the number of experimental observables with the use of gentle forces. ...
• #### Control method for wireless inductive energy transfer systems with relatively large air gap ﻿

(IEEE Press. Institute of Electrical and Electronics Engineers, 2013)
Article
Restricted access - publisher's policy
Recent improvements in semiconductor technology make efficient switching possible at higher frequencies, which benefits the application of wireless inductive energy transfer. However, a higher frequency does not alter ...
• #### Cubiertas verdes y rehabilitación: procesos de participación y cooperación universidad empresa ﻿

(2018)
Conference report
Open Access
Las cubiertas vegetales pueden aportar interesantes beneficios a la edificación existente: mejoras en el comportamiento térmico; propiedades acústicas; regulación de las aguas pluviales; y en clave ciudad, mejorar los ...
• #### Development of a power flow model for the transmission network of the iberian peninsula ﻿

(Universitat Politècnica de Catalunya / Technishe Universität Berlin, 2015)
Master thesis (pre-Bologna period)
Open Access
Covenantee:   Technische Universität Berlin
Over the last years, due to the increasing use of renewable energy, the typical way of producing and transporting electricity in Iberian Peninsula has changed. The way to produce energy has evolved from thermal and hydraulic ...
• #### Estació de càrrega de drons ﻿

(Universitat Politècnica de Catalunya, 2020-06)
Bachelor thesis
Open Access
El projecte consisteix en el disseny i simulació d’un ondulador, que genera un senyal amb freqüència suficient per a fer entrar en ressonància un tanc ressonantemissorcol·locat a laseva sortida.Gràcies a la part inductiva ...
• #### Fertigstellung und Inbetriebnahme eines Versuchstands zur Vermessung experimenteller induktiver Batterieladesysteme ﻿

(Universitat Politècnica de Catalunya, 2015)
Master thesis
Open Access
Covenantee:   Karlsruher Institut für Technologie
Within the framework of inductive technology, this master’s thesis represents the conclusion of several previous projects that pursuit a common objective, to design and develop an inductive wireless power transfer system ...
• #### Fluid dynamics and heat transfer in the wake of a sphere ﻿

(2019-04)
Article
Restricted access - publisher's policy
Direct numerical simulation and large-eddy simulation have been performed for a heated sphere at Reynolds numbers of $Re=1000$ and $Re=10^4$, respectively. The Prandtl number for both simulations has been $Pr=0.7$. ...
• #### Heat and Mass Transfer Technological Center ﻿

(Campus de Terrassa de la UPC, 2013-06-13)
Conference report
Open Access
• #### Impact of mobile transmitter sources on radio frequency energy harvesting ﻿

(Universitat Politècnica de Catalunya, 2012-09-05)
Master thesis (pre-Bologna period)
Open Access
Covenantee:   Northeastern University
[ANGLÈS] Wireless energy harvesting sensors networks constitute a new paradigm, where the motes deployed in the field are no longer constrained by the limited battery resource, but are able to recharge themselves through ...
• #### MEMS technologies for energy harvesting ﻿

(Springer, 2016-11-11)
Part of book or chapter of book
Open Access
The objective of this chapter is to introduce the technology of Microelectromechanical Systems, MEMS, and their application to emerging energy harvesting devices. The chapter begins with a general introduction to the most ...
• #### On freezing resistance of borehole heat exchangers ﻿

(Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica, 2015-06-02)
Conference report
Open Access
• #### Power reduction coordinated scheme for wind power plants connected with VSC-HVDC ﻿

(2017-07-01)
Article
Open Access
This article introduces a novel power coordination method for the operation under restricted conditions of offshore wind power plants connected with VSC-HVDC without the use of communications between converter stations. ...
• #### Recuperated versus single-recuperator re-compressed supercritical CO2 Brayton power cycles for DEMO fusion reactor based on dual coolant lithium lead blanket ﻿

(2017-12-01)
Article
Open Access
The EUROfusion research program is currently exploring alternative solutions for a future fusion power plant with DEMO (DEMOnstration Power Plant) prototype. One of the most important issues arising from a dual coolant ...
• #### Solvation dynamics in liquid water: 1: ultrafast energy fluxes ﻿

(2015-01-30)
Article
Open Access
Solvation dynamics in liquid water is addressed via nonequilibrium energy-transfer pathways activated after a neutral atomic solute acquires a unit charge, either positive or negative. It is shown that the well-known ...
• #### Solvation dynamics in liquid water: III: energy fluxes and structural changes ﻿

(2017-02-16)
Article
Open Access
In previous installments it has been shown how a detailed analysis of energy fluxes induced by electronic excitation of a solute can provide a quantitative understanding of the dominant molecular energy flow channels ...
• #### Solvation dynamics in water: 2. Energy fluxes on excited- and ground-state surfaces ﻿

(2016-11-03)
Article
Open Access
This series’ first installment introduced an approach to solvation dynamics focused on expressing the emission frequency shift (following electronic excitation of, and resulting charge change or redistribution in, a solute) ...
• #### Spectroscopic characterization of Er3+, Yb3+ co-doped UC single crystals : the influence of host and sensitizer concentrations ﻿

(Universitat Politècnica de Catalunya, 2018-10-24)
Master thesis
Open Access
Covenantee:   Bundesanstalt für Materialforschung und -prüfung
The energy transfer upconversion (ETU) mechanism is known to be the most efficient route for the conversion of near infrared (NIR) light to visible emission in Ln3+-co-doped systems. In this work, we examined these energy ...
• #### Study for the computational resolution of conservation equations of mass, momentum and energy. Possible application to different aeronautical and industrial engineering problems: Case 1A. ﻿

(Universitat Politècnica de Catalunya, 2017-06-10)
Bachelor thesis
Restricted access - author's decision
This project deals with the numerical simulation of the Navier-Stokes equations for different cases. By computing several benchmark cases, the code is tested and improved in order to compute more difficult cases such as ...
• #### Study for the computational resolution of conservation equations of mass, momentum and energy. Possible application to different aeronautical and industrial engineering problems: Case 5A. ﻿

(Universitat Politècnica de Catalunya, 2017-06-10)
Bachelor thesis
Restricted access - author's decision
The numerical simulation of the RAE2822 aerofoil under transonic flow conditions (including shock-induced separation at the upper surface) has been performed using unsteady Reynolds-averaged numerical simulation (URANS), ...