Now showing items 220-239 of 282

    • QoS-aware Metamorphic Testing: An Elevation Case Study 

      Ayerdi, Jon; Arrieta, Aitor; Sagardui, Goiuria (IEEE, 2020)
      Elevators are among the oldest and most widespread transportation systems, yet their complexity increases rapidly to satisfy customization demands and to meet quality of service requirements. Verification and validation ...
    • Radial fan simulations by computational fluid dynamics and experimental validation 

      San Andrés Sanz, Unai; Almandoz, Gaizka; Poza, Javier; Ugalde, Gaizka (IEEE, 2014)
      Fans are commonly used to refrigerate electrical machines when air forced cooling is required. They are rather simple solutions that can considerably improve the thermal performance of electrical machines, so the fan ...
    • Reactive Power Limits of Single-Phase and Three-Phase DC-Link VSC STATCOMs under Negative-Sequence Voltage and Current 

      Marzo Elguero, Iosu; Barrena, Jon Andoni; Abad, Gonzalo (IEEE, 2021)
      This paper analyzes and compares the reactive power limits of single- and three-phase configured dc-link Voltage Source Converter (VSC) structures for Static Synchronous Compensator (STATCOM) to operate with negative-sequence ...
    • Relationship between the use of ICT and the degree and type of diversification 

      Igartua, Juan Ignacio; Ganzarain, Jaione (Elsevier, 2016)
      Advances in information and communication technologies (ICT) has given way to a new genre of opportunities for companies expanding their horizons to explore new markets and to diversify their business. In this sense, the ...
    • Removing piston-driven mechanical chest compression artefacts from the ECG 

      Ayala, Unai (CinC Computing In Cardiology, 2017)
      Piston-driven mechanical chest compression (CC) devices induce a quasi-periodic artefact in the ECG, making rhythm diagnosis unreliable. Data from 230 out-of-hospital cardiac arrest (OHCA) patients were collected in which ...
    • Reputation-based intrusion detection system for wireless sensor networks 

      Uribeetxeberria, Roberto; Zurutuza, Urko; Arenaza-Nuño, Ignacio; Gerrigagoitia, Keldor (IEEE, 2012)
      Wireless Sensor Networks (WSNs) can be used in a broad range of applications from complex military operations to simple domestic environments. This makes security a vital characteristic in WSNs. There have been numerous ...
    • Resonant Dual Active Bridge Partial Power Converter for Electric Vehicle Fast Charging Stations 

      Anzola, Jon; Aizpuru, Iosu; Arruti Romero, Asier; Lopez Erauskin, Ramon; Alacano, Argiñe (IEEE, 2021)
      This paper presents an analysis and design of a DC-DC charging unit for an electric vehicle fast charging station. Due to the benefits that partial power processing achieves in terms of size reduction and efficiency ...
    • Reuse in safety critical systems : educational use case first experiences 

      Illarramendi, Miren; Etxeberria, Leire; Elkorobarrutia, Xabier (IEEE, 2014)
      In order to maintain Europe as world leader in development of safety relevant systems one of the keys would be to join together the European industrial, academic and scientific communities. One of the main industrial ...
    • Reuse in safety critical systems: educational use case 

      Illarramendi, Miren; Etxeberria, Leire; Elkorobarrutia, Xabier (IEEE, 2013)
      The last decades, the electromechanical control systems are being replaced by Programmable Electronic Control Systems. The challenge is that these new systems have to be at least as safe as the replaced ones. Any company ...
    • Reuse in Safety Critical Systems: Educational Use Case Final Results 

      Illarramendi, Miren; Etxeberria, Leire; Elkorobarrutia, Xabier (IEEE, 2015)
      The University of Mondragon, has participated in an European ARTEMIS project called SafeCer during 4 years. The main objective of the project has been to research about the "Reuse of safety related embedded systems and ...
    • Revisión Crítica del Uso del Patient Journey Map en el Diseño Centrado en las Personas 

      Garcia-Lopez, Maitane; Val, Ester; Iriarte, Ion; Gonzalez-de-Heredia, Arantxa (AEIPRO, 2021)
      Recent studies indicate that a positive Patient eXperience (PX) leads to a faster patient recovery, greater safety and lower costs for the healthcare system. Therefore, PX design is fundamental for hospitals service delivery. ...
    • Robot-aren itxura estetikoak eta erabiltzaileen preferentziak 

      Apraiz Iriarte, Ainhoa; Aztiria Mendizabal, Ainhoa; Lasa, Ganix (Udako Euskal Unibertsitatea (UEU), 2021)
      Datozen urteetan roboten eta pertsonen arteko bizikidetza handitzea espero da, eta ondorioz, beraien arteko interakzioa optimizatzea beharrezkoa izango da. Robotaren itxura estetikoa bere gaitasunen inguruko informazioa ...
    • Roll levelling semi-analytical model for process optimization 

      Silvestre Soriano, Elena; GALDOS, Lander; Sáenz de Argandoña, Eneko; Mendiguren, Joseba (IOP, 2016)
      Roll levelling is a primary manufacturing process used to remove residual stresses and imperfections of metal strips in order to make them suitable for subsequent forming operations. In the last years the importance of ...
    • Runtime Contracts Checker: Increasing Robustness of Component-Based Software Systems 

      Illarramendi, Miren; Etxeberria, Leire; Elkorobarrutia, Xabier; Sagardui, Goiuria (IOP Publishing, 2019)
      Software Systems are becoming increasingly complex leading to new Validation &Verification challenges. Model checking and testing techniques are used at development time while runtime verification aims to verify that a ...
    • Runtime observable and adaptable UML state machines: models@run.time approach 

      Illarramendi, Miren; Etxeberria, Leire; Elkorobarrutia, Xabier; Sagardui, Goiuria (ACM, 2019)
      n embedded system is a self-contained system that incorporateselements of control logic and real-world interaction. UML State Ma-chines constitute a powerful formalism to model the behaviour ofthese types of systems. In ...
    • Sandwich biskoelastikoen nukleoaren lodieraren eragina igogailu baten erantzun dinamikoan 

      Iriondo, Jaione; Irazu, Leire; Elejabarrieta, Maria Jesus; Mendizabal, Mikel (UEU, 2019)
      The use of thin viscoelastic sandwiches in terms of vibration attenuation has been widely validated. Sandwich structures composed of viscoelastic adhesive films and metallic constraining layers result in thin composite ...
    • A Scalable and Unified Multi-Control Framework for KUKA LBR iiwa Collaborative Robots 

      Serrano Muñoz, Antonio; Elguea, Íñigo; Arana-Arexolaleiba, Nestor (IEEE, 2023)
      The trend towards industrialization and digitalization has led more and more companies to deploy robots in their manufacturing facilities. In the field of collaborative robotics, the KUKA LBR iiwa is one of the benchmark ...
    • Search-based Test Case Selection for PLC Systems using Functional Block Diagram Programs 

      Ugarte Querejeta, Miriam; Valle Entrena, Pablo; Arrieta, Aitor; Illarramendi, Miren (IEEE, 2023)
      Programmable Logic Controllers (PLCs) are the core unit of the production system, which frequently need to implement new processes to address customer needs. These changes must be fully tested to ensure the reliability of ...
    • Seeding Strategies for Multi-Objective Test Case Selection: An Application on Simulation-based Testing 

      Arrieta, Aitor; Agirre, Joseba Andoni; Sagardui, Goiuria (ACM, 2020)
      The time it takes software systems to be tested is usually long. This is often caused by the time it takes the entire test suite to be executed. To optimize this, regression test selection approaches have allowed for ...
    • Sensitivity analysis on an AC600 aluminum skin component 

      Mendiguren, Joseba; Sáenz de Argandoña, Eneko; GALDOS, Lander; Mugarra Fernandez, Endika (IOP, 2016)
      New materials are been introduced on the car body in order to reduce weight and fulfil the international CO2 emission regulations. Among them, the application of aluminum alloys is increasing for skin panels. Even if these ...