Ara es mostren els items 1-15 de 15

    • 3D visualization of macromolecule synthesis 

      Duerr, Timothy J.; Comellas Sanfeliu, Ester; Jeon, Eun Kyung; Farkas, Johanna E.; Joetzjer, Marylou; Garnier, Julien; Shefelbine, Sandra J.; Monaghan, James R. (2020-10-01)
      Article
      Accés obert
      Measuring nascent macromolecular synthesis in vivo is key to understanding how cells and tissues progress through development and respond to external cues. Here we perform in vivo injection of alkyne- or azide-modified ...
    • A generalized finite-strain damage model for quasi-incompressible hyperelasticity using hybrid formulation 

      Comellas Sanfeliu, Ester; Bellomo, Facundo J.; Oller Martínez, Sergio Horacio (2016-03)
      Article
      Accés obert
      A new generalized damage model for quasi-incompressible hyperelasticity in a total Lagrangian finite-strain framework is presented. A Kachanov-like reduction factor (1 - D) is applied on the deviatoric part of the hyperelastic ...
    • A homeostatic-driven turnover remodelling constitutive model for healing in soft tissues 

      Comellas Sanfeliu, Ester; Gasser, Thomas Christian; Bellomo, Facundo J.; Oller Martínez, Sergio Horacio (2016-03)
      Article
      Accés obert
      Remodelling of soft biological tissue is characterized by interacting biochemical and biomechanical events, which change the tissue's microstructure, and, consequently, its macroscopic mechanical properties. Remodelling ...
    • Certification Calculations of the Torsion Box of an Aircraft’s Horizontal Tail-Plane 

      Comellas Sanfeliu, Ester (Universitat Politècnica de Catalunya, 2006-07)
      Projecte/Treball Final de Carrera
      Accés obert
    • I’m stuck! How to efficiently debug computational solid mechanics models so you can enjoy the beauty of simulations 

      Comellas Sanfeliu, Ester; Pelteret, Jean-Paul; Bangerth, Wolfgang (2023-01)
      Article
      Accés obert
      A substantial fraction of the time that computational modellers dedicate to developing their models is actually spent trouble-shooting and debugging their code. However, how this process unfolds is seldom spoken about, ...
    • Local mechanical stimuli correlate with tissue growth in axolotl salamander joint morphogenesis 

      Comellas Sanfeliu, Ester; Farkas, Johanna E.; Kleinberg, Giona; Lloyd, Katlyn; Mueller, Thomas; Duerr, Timothy; Muñoz Romero, José; Monaghan, James R.; Shefelbine, Sandra J. (2022-05-25)
      Article
      Accés obert
      Movement-induced forces are critical to correct joint formation, but it is unclear how cells sense and respond to these mechanical cues. To study the role of mechanical stimuli in the shaping of the joint, we combined ...
    • Modeling the porous and viscous responses of human brain tissue behavior 

      Comellas Sanfeliu, Ester; Budday, Silvia; Pelteret, Jean-Paul; Holzapfel, Gerhard A.; Steinmann, Paul (2020-09-01)
      Article
      Accés obert
      The biomechanical characterization of human brain tissue and the development of appropriate mechanical models is crucial to provide realistic computational predictions that can assist personalized treatment of neurological ...
    • Numerical modeling of a cervical spine discectomy 

      Comellas Sanfeliu, Ester; Oller Martínez, Sergio Horacio; Poblete, José; Berenguer, Joan; Prats-Galino, Alberto (Asociación Argentina de Mecánica Computacional, 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Cervical spine discectomy is a relatively common medical procedure which entails the surgical removal of a herniated intervertebral disc which is then replaced with an adequate prosthesis. Surgeons rely on their expertise ...
    • Numerical modelling of the growth and remodelling phenomena in biological tissues 

      Comellas Sanfeliu, Ester (Universitat Politècnica de Catalunya, 2016-02-05)
      Tesi
      Accés obert
      Living biological tissues are complex structures that have the capacity of evolving in response to external loads and environmental stimuli. The adequate modelling of soft biological tissue behaviour is a key issue in ...
    • On the feasibility of the computational modelling of the endoluminal vacuum-assisted closure of an oesophageal anastomotic leakage 

      Comellas Sanfeliu, Ester; Bellomo, Facundo J.; Rosales, Iván; Castillo, Luis F. del; Sánchez, Ricardo; Turon, Pau; Oller Martínez, Sergio Horacio (2018-03)
      Article
      Accés obert
      Endoluminal vacuum-assisted closure (E-VAC) is a promising therapy to treat anastomotic leakages of the oesophagus and bowel which are associated with high morbidity and mortality rates. An open-pore polyurethane foam is ...
    • Optimization method for the determination of material parameters in damaged composite structures 

      Comellas Sanfeliu, Ester; Valdez Peña, Sergio Ivvan; Oller Martínez, Sergio Horacio; Botello, S. (2015-04)
      Article
      Accés obert
      An optimization method to identify the material parameters of composite structures using an inverse method is proposed. This methodology compares experimental results with their numerical reproduction using the finite ...
    • Poro-viscoelastic effects during biomechanical testing of human brain tissue 

      Greiner, Alexander; Reiter, Nina; Paulsen, Friedrich; Holzapfel, Gerhard A.; Steinmann, Paul; Comellas Sanfeliu, Ester; Budday, Silvia (2021-08-17)
      Article
      Accés obert
      Brain tissue is one of the softest tissues in the human body and the quantification of its mechanical properties has challenged scientists over the past decades. Associated experimental results in the literature have been ...
    • Poro-viscoelastic material parameter identification of brain tissue-mimicking hydrogels 

      Kainz, Manuel; Greiner, Alexander; Hinrichsen, Jan; Kolb, Dagmar; Comellas Sanfeliu, Ester; Steinmann, Paul; Budday, Silvia; Terzano, Michele; Holzapfel, Gerhard A. (Frontiers Media SA, 2023-04-10)
      Article
      Accés obert
      Understanding and characterizing the mechanical and structural properties of brain tissue is essential for developing and calibrating reliable material models. Based on the Theory of Porous Media, a novel nonlinear ...
    • The role of computational models in mechanobiology of growing bone 

      Comellas Sanfeliu, Ester; Shefelbine, Sandra J. (Frontiers Media SA, 2022-11-18)
      Article
      Accés obert
      Endochondral ossification, the process by which long bones grow in length, is regulated by mechanical forces. Computational models, specifically finite element models, have been used for decades to understand the role of ...
    • Usability of deep learning pipelines for 3D nuclei identification with Stardist and Cellpose 

      Kleinberg, Giona; Wang, Sophia; Comellas Sanfeliu, Ester; Monaghan, James R.; Shefelbine, Sandra J. (Elsevier, 2022-12)
      Article
      Accés obert
      Segmentation of 3D images to identify cells and their molecular outputs can be difficult and tedious. Machine learning algorithms provide a promising alternative to manual analysis as emerging 3D image processing technology ...