Ara es mostren els items 15457-15476 de 245503

    • Analysis of a thermal energy storage system for application in the Moon 

      Climent Molina, Blai (Universitat Politècnica de Catalunya, 2012-07-19)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      One of the biggest challenges of the Moon exploration is the survival of the crew and the lunar assets during the lunar night. Lunar environment is a harsh, alien environment in the true sense of the word and requires ...
    • Analysis of a thermoelastic problem of type III 

      Bazarra, Noelia; Fernández, Jose R.; Quintanilla de Latorre, Ramón (2020-06)
      Article
      Accés obert
      This paper investigates several aspects of the linear type III thermoelastic theory. First, we consider the most general system of equations for this theory in the case that the conductivity rate is not definite and we ...
    • Analysis of a thermoelastic problem with the Moore–Gibson–Thompson microtemperatures 

      Bazarra, Noelia; Fernández García, José Ramón; Liverani, Lorenzo; Quintanilla de Latorre, Ramón (Elsevier, 2024-03)
      Article
      Accés obert
      In this paper, we study, from both an analytical and a numerical point of view, a poro-thermoelastic problem with microtemperatures. The so-called Moore–Gibson–Thompson equation is used to model the contribution for the ...
    • Analysis of a thin tile vaulted structure 

      Roberts Cervantes, Gonzalo Alejandro (Universitat Politècnica de Catalunya, 2010-07-12)
      Projecte Final de Màster Oficial
      Accés obert
      This thesis presents a simplified methodology for the assessment of Catalan double curvature masonry vaults. The methodology consists on discretize the vault in a series of arches capable of representing the structural ...
    • Analysis of a total integration of renewable energy in Catalonia through a dynamic virtual power plant model and the use of hydrogen as a method of energy production stabilization 

      Turcios Marquez, Abraham Orlando (Universitat Politècnica de Catalunya, 2023-07-18)
      Projecte Final de Màster Oficial
      Accés obert
      Several models and scenarios have been developed to understand the dynamics and implications of integrating renewable energy technologies into the grid. In this document, the focus was on photovoltaic (PV), wind power, ...
    • Analysis of a total integration of renewable energy through a dynamic virtual power plant model and the use of hydrogen as a method of energy production stabilization 

      Silva Levano, Danilo (Universitat Politècnica de Catalunya, 2023-07-18)
      Projecte Final de Màster Oficial
      Accés obert
      The growing need for change in the energy vector, the increasing popularity of renewable energies, as well as the European regulations to achieve zero emissions by 2050 (currently at 21.8% in Europe with a projection of ...
    • Analysis of a trust model for SLA negotiation and enforcement in cloud markets 

      Macías Lloret, Mario; Guitart Fernández, Jordi (Elsevier, 2016-02)
      Article
      Accés obert
      Online Reputation Systems help mitigate the information asymmetry between clients and providers in Cloud Computing Markets. However, those systems raise two main drawbacks: the disagreement for assuming the cost of ownership ...
    • Analysis of a type II hybrid ARQ strategy in a DS-CDMA packet transmission environment 

      Pérez Romero, Jordi; Agustí Comes, Ramon; Sallent Roig, Oriol (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2003-08)
      Article
      Accés obert
      A type II hybrid automatic repeat request scheme is considered as a retransmission strategy in a direct-sequence code-division multiple-access packet mobile radio network. An analysis based on equilibrium point analysis ...
    • Analysis of a viscoelastic spring-mass model 

      Pellicer Sabadí, Marta; Solà-Morales Rubió, Joan de (2003)
      Article
      Accés obert
      In this paper we consider a linear wave equation with strong damping and dynamical boundary conditions as an alternative model for the classical spring-mass-damper ODE. Our purpose is to compare analytically these two ...
    • Analysis of a voltage balancing technique with reduced switching transitions in a flying capacitor multilevel converter 

      Ghias, Amer M.Y.M.; Pou Félix, Josep; Agelidis, Vassilios; Ciobotaru, M. (2013)
      Text en actes de congrés
      Accés obert
      This paper reports the analysis of a voltage balancing technique based on optimal switching transitions for a flying capacitor (FC) multilevel converter using phase disposition pulse-width modulation. Since multiple switching ...
    • Analysis of a voyage plan from Barcelona to Las Palmas 

      Martinez Lopategui, Eduardo (Universitat Politècnica de Catalunya, 2015-10-16)
      Projecte/Treball Final de Carrera
      Accés obert
    • Analysis of aberrations effect in nonlinear processes for femtosecond laser pulses 

      Romero Altimis, C.; Gualda Manzano, Emilio José; Artal Soriano, Pablo; Bueno García, Juan Manuel; Borrego Varillas, Rocío; Alonso Fernández, Benjamín; Méndez Valverde, Cruz; Rodríguez Vázquez de Aldana, Javier; Roso Franco, Luis (Optical Society of American (OSA), 2009)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A method for the analysis and control of femtosecond pulse wavefronts generated in non-linear crystals by three-wave mixing processes is presented. The possibility to improve the efficiency of these processes is discussed.
    • Analysis of academic performance based on sociograms: a case study with students from at-risk groups 

      Sanchez, Tarquino; Naranjo, David; Vidal, Jack; Salazar, Diego; Pérez, Cristina; Jaramillo, Marianela (OmniaScience, 2021-04)
      Article
      Accés obert
      The present work analyzes the academic performance of students from at-risk groups from theperspective of Social Network Analysis (SNA), studying the academic and interaction information of 45students belonging to at-risk ...
    • Analysis of acoustic information in end-to-end spoken language translation 

      Sant Muniesa, Gerard; Escolano Peinado, Carlos (International Speech Communication Association (ISCA), 2023)
      Text en actes de congrés
      Accés obert
      End-to-End Transformer-based models are the most popular approach for Spoken Language Translation (SLT). While obtaining state-of-the-art results, we are still far from understanding how these models extract acoustic ...
    • Analysis of additive manufacturing in the aeronautical field 

      Cabrera Agudo, Bárbara (Universitat Politècnica de Catalunya, 2018-07-13)
      Projecte Final de Màster Oficial
      Accés obert
      Additive manufacturing is a new technology that is currently implemented in different industries such as oil, gas, automation and the medical industry. The objective of this thesis is to analyse whether 3D printing will ...
    • Analysis of additive manufacturing technology applied to valve housings for mobile machinery 

      Lara Domínguez, Adrián; Cladera Escalas, Aina; Beguin, Norman; Yasin, Tariq (Universitat Politècnica de Catalunya, 2018-06-27)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   Buchholz Hydraulik / Fachhochschule Kiel
      L’ European Project Semester va començar l’1 de març de 2018, amb una visita a la empresa, per la qual hem estat treballant aquests quatre mesos, els meus tres companys internacionals i jo. L’empresa és anomenada Buchholz ...
    • Analysis of airborne fines in cylindrical biomass storage silos 

      Lulbadda Waduge, L. L.; Zigan, S. (CIMNE, 2015)
      Text en actes de congrés
      Accés obert
      Biomass handling industries are transporting and storing huge quantities of biomass materials. During transportation, wood pellets can be subject to attrition (a process that generates additional fines and dust). When ...
    • Analysis of airline passenger market in southern Europe from a Pareto efficiency perspective 

      Yébenes Creus, Aleix (Universitat Politècnica de Catalunya, 2021-09-28)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat
    • Analysis of alternatives to store genealogical trees using Graph Databases 

      Pasarin Perea, Lucía (Universitat Politècnica de Catalunya, 2013-06-21)
      Projecte Final de Màster Oficial
      Accés obert
      This master thesis is expected to give solutions to a current and open problem. Different aspects related to the genealogical tree storage using advanced databases are considered in this thesis. The first important ...
    • Analysis of am parameters on surface roughness obtained in pla parts printed with fff technology 

      Buj Corral, Irene; Sánchez Casas, Xavier; Luis Pérez, Carmelo Javier (Multidisciplinary Digital Publishing Institute (MDPI), 2021-07-02)
      Article
      Accés obert
      Fused filament fabrication (FFF) 3D printing technology allows very complex parts to be obtained at a relatively low cost and in reduced manufacturing times. In the present work, the effect of main 3D printing parameters ...