Now showing items 1-20 of 63

    • A Review and Gap Analysis of Exploiting Aerodynamic Forces as a Means to Control Satellite Formation Flight 

      Traub, Constantin; Romano, F.; Binder, Tilman; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (2018)
      Conference report
      Open Access
      Using several small, unconnected satellites flying in formation rather than a single monolithic satellite has many advantages. As an example, separate optical systems can be combined to function as a single larger (synthetic) ...
    • A review of gas-surface interaction models for orbital aerodynamics applications 

      Livadiotti, Sabrina; Crisp, Nicholas H.; Roberts, Peter C.E; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (2020-11)
      Article
      Open Access
      Renewed interest in Very Low Earth Orbits (VLEO) - i.e. altitudes below 450 km - has led to an increased demand for accurate environment characterisation and aerodynamic force prediction. While the former requires knowledge ...
    • ADBSat: Verification and validation of a novel panel method for quick aerodynamic analysis of satellites 

      Sinpetru, Luciana A.; Crisp, Nicholas H.; Roberts, Peter C.E; Sulliotti-Linner, Valeria; Hanessian, Virginia; Herdrichd, Georg H.; Romano, Francesco; García-Almiñana, Daniel; Rodríguez Donaire, Silvia (2022-06)
      Article
      Restricted access - publisher's policy
      We present the validation of ADBSat, a novel implementation of the panel method including a fast pseudo-shading algorithm, that can quickly and accurately determine the forces and torques on satellites in free-molecular ...
    • Advances on the Inductive Plasma Thruster Design for an Atmosphere-Breathing EP System 

      Romano, Francesco; Herdrichd, Georg H.; Boxberger, Adam; Rodríguez Donaire, Silvia; García-Almiñana, Daniel; Sureda Anfres, Miquel (International Astronautical Federation, 2018)
      Conference report
      Open Access
      Challenging space mission scenarios include those in very low Earth orbits, where the atmosphere creates significant drag to the S/C and forces their orbit to an early decay. For drag compensation, propulsion systems are ...
    • Aerodynamic Technologies for Earth Observation Missions in Very Low earth Orbit 

      Becedas, Jonathan; González, Gerardo; Domínguez, Rosa María; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (2018)
      Conference report
      Restricted access - publisher's policy
      Flying at VLEO has several advantages such as the increase of the resolution of images recorded by optical instruments, the increase of geospatial position accuracy, the improvement of the signal to noise ratio and the ...
    • Analysis of mobility patterns and intended use of shared mobility services in the Barcelona region 

      Gilibert Junyent, Mireia; Ribas Vila, Immaculada; Rodríguez Donaire, Silvia (2019)
      Conference report
      Open Access
      Social and economic trends have strongly changed in the last years due to the economic crisis and the evolution of technology. These factors have influenced a sharing revolution, also in the mobility sector motivated for ...
    • Assessing Virtual Collaborative Environment performance mediated by web-based conversational mechanisms 

      Rodríguez Donaire, Silvia; García-Almiñana, Daniel; Barodzich, Irina (2011)
      Conference lecture
      Open Access
      The aim of this Work in Progress (WiP) is to assess the effect of using chat and thread discussion on effectiveness of collaboration through Web-Based Collaborative Environments (WBCEs), particularly platform wikis. In ...
    • Attitude control for satellites flying in VLEO using aerodynamic surfaces 

      Cañas Muñoz, Valentin; González, David; Becedas, Jonathan; Rodríguez Donaire, Silvia; García-Almiñana, Daniel; Sureda Anfres, Miquel; Nieto, Miriam; Muñoz, Candia (British Interplanetary Society, 2020)
      Article
      Restricted access - publisher's policy
      This paper analyses the use of aerodynamic control surfaces, whether passive or active, in order to carry out very low Earth orbit (VLEO) attitude maneuver operations. Flying a satellite in a very low Earth orbit with an ...
    • Business model choices and dimensions of social capital, a path to attain organizational sustainability 

      Rodríguez Donaire, Silvia (2009)
      Conference report
      Open Access
      In this paper we study the link between business model set of choices and the way these choices and the resulting business model configuration influence its behaviour, including the consequences. In particular, we study ...
    • Business roadmap for the European Union in the NewSpace ecosystem: a case study for access to space 

      Rodríguez Donaire, Silvia; GIL MORA, PAULINO; García-Almiñana, Daniel; Crisp, Nicholas H.; HERDRICH, GEORG; Roberts, Peter C.E; KATARIA, DHIREN; HANESSIAN, VIRGINIA; Becedas, Jonathan; SEMINARI, SIMON (2022-06-24)
      Article
      Open Access
      A business roadmap is a high-level strategic management tool that maps the actions to develop new industries. It serves as a guide to plan and forecast technological, market and product developments in a more operational ...
    • Collaborative environments, a way to improve quality in higher education 

      Rodríguez Donaire, Silvia; Amante García, Beatriz (2012)
      Article
      Restricted access - publisher's policy
      The aim of this research is to observe how Collaborative Web-Based Environments (CWBEs) foster higher education quality improvement by means of enhancing students' teamwork skills, the use of CWBEs and the use of teaching ...
    • Collaborative environments, a way to improve quality in higher education 

      Rodríguez Donaire, Silvia; Amante García, Beatriz (2012-05)
      Article
      Restricted access - publisher's policy
      The aim of this research is to observe how Collaborative Web-Based Environments (CWBEs) foster higher education quality improvement by means of enhancing students' teamwork skills, the use of CWBEs and the use of teaching ...
    • Collaborative learning and videoconferences 

      García-Almiñana, Daniel; Rodríguez Donaire, Silvia (2011)
      Conference report
      Restricted access - publisher's policy
      In this paper we present some experiences of working in collaborative environments in engineering studies. We also show the combined potential of those environments when involving the use of videoconferencing as a quality ...
    • Concepts and applications of aerodynamic attitude and orbital control for spacecraft in very low earth orbit 

      Livadiotti, Sabrina; Crisp, Nicholas H.; Roberts, Peter C.E; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (International Astronautical Federation, 2019)
      Conference report
      Restricted access - publisher's policy
      Spacecraft operations below 450km, namely Very Low Earth Orbit (VLEO), can offer significant advantages over traditional low Earth orbits, for example enhanced ground resolution for Earth observation, improved communications ...
    • Cooperative work and videoconferencing: practical tools for engineering studies 

      García-Almiñana, Daniel; Rodríguez Donaire, Silvia (2011)
      Conference report
      Open Access
      In this communication some work experiences in collaborative environments for engineering studies are presented. Besides, the combined potential for cooperative work and videoconferencing is also shown as an element ...
    • Demonstration of aerodynamic control manoeuvres in very low earth orbit using SOAR (Satellite for Orbital Aerodynamics Research) 

      Crisp, Nicholas H.; Livadiotti, Sabrina; Roberts, Peter C.E; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (International Astronautical Federation, 2019)
      Conference report
      Restricted access - publisher's policy
      Aerodynamic forces have often been proposedas a possible means to perform a variety of different attitude and orbit control manoeuvres in very low Earth orbits including pointing control, constellation and formation ...
    • Design and development of a hyper-thermal atomic oxygen wind tunnel facility 

      Oiko, Vitor; Roberts, Peter C.E; Edmonson, Steve; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (Centre National d'Études Spatiales (CNES), 2018)
      Conference lecture
      Restricted access - publisher's policy
      A hyper-thermal orbital aerodynamics test facility is described. The Rarefied Orbital Aerodynamics Research facility(ROAR)is a dedicated apparatus designedto simulate the atmospheric flow in very low Earth orbits(VLEO) to ...
    • Design of an intake and a thruster for an atmosphere-breathing electric propulsion system 

      Romano, Francesco; Herdrich, Georg; Chan, Yung-An; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (2022-05-27)
      Article
      Restricted access - publisher's policy
      Challenging space missions include those at very low altitudes, where the atmosphere is the source of aerodynamic drag on the spacecraft, that fnally defnes the mission’s lifetime, unless a way to compensate for it is ...
    • Development and analysis of novel mission scenarios based on Atmosphere-Breathing Electric Propulsion (ABEP) 

      Vaidya, Shreepali Sanjay; Traub, Constantin; Romano, Francesco; Rodríguez Donaire, Silvia; García-Almiñana, Daniel; Sureda Anfres, Miquel; García Berenguer, Marina (2022-03-21)
      Article
      Restricted access - publisher's policy
      Operating satellites in Very Low Earth Orbit (VLEO) benefit the already expanding New Space industry in applications including Earth Observation and beyond. However, long-term operations at such low altitudes require ...
    • DISCOVERER - Radical Redesign of Earth Observation Satellites for Sustained Operation at Significantly Low Altitudes 

      Roberts, Peter C.E; Crisp, Nicholas H.; Edmonson, Steve; García-Almiñana, Daniel; Rodríguez Donaire, Silvia (2017)
      Conference report
      Restricted access - publisher's policy
      DISCOVERER is a new 5.7 million Euro, 4.25 year Horizon 2020 funded project which aims to radically redesign Earth observation satellites for sustained operation at significantly lower altitudes. The satellite based Earth ...