Enviaments recents

  • The equidistant dimension of graphs 

    González Herrera, Antonio; Hernando Martín, María del Carmen; Mora Giné, Mercè (2022-05-06)
    Article
    Accés obert
    A subset S of vertices of a connected graph G is a distance-equalizer set if for every two distinct vertices x,y¿V(G)\S there is a vertex w¿S such that the distances from x and y to w are the same. The equidistant dimension ...
  • Water mixing approach (WMA) for reactive transport modeling 

    Soler Sagarra, Joaquim; Saaltink, Maarten Willem; Nardi Ricart, Albert; Gaspari, Francesca de; Carrera Ramírez, Jesús (Elsevier, 2022-03-01)
    Article
    Accés restringit per política de l'editorial
    We describe a formulation to solve reactive transport (RT) problems. The basic idea is to represent transport as mixing water instead of individual solute concentrations, hence the Water Mixing Approach (WMA) name. This ...
  • Virtual simulation of the biomechanics of the abdominal wall with different stoma locations 

    Tuset Serra, Lluis; Fortuny Anguera, Gerard; Puigjaner Riba, Dolors; Herrero Sabartés, Juan; López Besora, Josep Maria (Nature, 2022-12)
    Article
    Accés obert
    An ostomy is a surgical procedure by which an artificial opening in the abdominal wall, known as a stoma, is created. We assess the effects of stoma location on the abdominal wall mechanics. We perform three-dimensional ...
  • Local generic behavior of a planar Filippov system with non-smooth switching curve 

    Fernandes Larrosa, Juliana; Martínez-Seara Alonso, M. Teresa; Teixeira, Marco Antonio (Springer Nature, 2021-10-18)
    Article
    Accés restringit per política de l'editorial
    This paper discusses the generic local classification of typical singularities of 2D piecewise smooth vector fields when the switching set is an non smooth curve. The main goal is to obtain classification results concerning ...
  • Structural assessment under uncertain parameters via the interval optimization method using the slime mold algorithm 

    Ghiasi, Ramin; Noori, Mohammad; Kuok, Sin-Chi; Silik, Ahmed; Wang, Tianyu; Pozo Montero, Francesc; Altabey, Wael A. (Multidisciplinary Digital Publishing Institute, 2022-02-11)
    Article
    Accés obert
    Damage detection of civil and mechanical structures based on measured modal parameters using model updating schemes has received increasing attention in recent years. In this study, for uncertainty-oriented damage ...
  • Hopf-Galois module structure of quartic Galois extensions of Q 

    Gil-Muñoz, David; Río Doval, Ana (2022-09)
    Article
    Accés obert
    Given a quartic Galois extension L/Q of number fields and a Hopf-Galois structure H on L/Q, we study the freeness of the ring of integers OL as module over the associated order AH in H. For the classical Galois structure ...
  • Attention-based deep recurrent neural network to forecast the temperature behavior of an electric arc furnace side-wall 

    Godoy Rojas, Diego F.; León Medina, Jersson Xavier; Rueda, Bernardo; Vargas, Whilmar; Romero, Juan; Pedraza, Cesar; Pozo Montero, Francesc; Tibaduiza Burgos, Diego Alexander (Multidisciplinary Digital Publishing Institute (MDPI), 2022-02-12)
    Article
    Accés obert
    Structural health monitoring (SHM) in an electric arc furnace is performed in several ways. It depends on the kind of element or variable to monitor. For instance, the lining of these furnaces is made of refractory materials ...
  • Encouraging students’ motivation and Involvement in STEM degrees by the execution of real applications in mathematical subjects: the population migration problem 

    López-Díaz, María Teresa; Peña Carrera, Marta (Multidisciplinary Digital Publishing Institute (MDPI), 2022-04-08)
    Article
    Accés obert
    This paper presents a simplified model of the population migration problem, addressed to first-year engineering students in order to show them the use of linear algebra tools. The study consists of predicting the census ...
  • Impact and synergies of GIM error estimates on the VTEC interpolation and single-frequency PPP at low latitude region 

    Jerez, Gabriel Olivera; Hernández Pajares, Manuel; Goss, Andreas; Menezes da Silva, Crislaine; Alves, Daniele Barroca Marra; Monico, João Francisco Galera (2022-04-01)
    Article
    Accés obert
    The vertical total electron content (VTEC) is one of the key quantities to describe variations of the ionosphere and can be pro- vided to users to correct the ionospheric disturbances for GNSS (Global Navigation Satellite ...
  • Global monitoring of ionospheric weather by GIRO and GNSS data fusion 

    Galkin, Ivan; Fron, Adam; Reinisch, Bodo W.; Hernández Pajares, Manuel; Krankowski, Andrzej; Nava, Bruno; Bilitza, Dieter; Kotulak, Kacper; Flisek, Pawel; Li, Zishen; Wang, Ningbo; Roma Dollase, David; García Rigo, Alberto; Batista, Inez (2022-02-23)
    Article
    Accés obert
    Prompt and accurate imaging of the ionosphere is essential to space weather services, given a broad spectrum of applications that rely on ionospherically propagating radio signals. As the 3D spatial extent of the ionosphere ...
  • On the spectra and eigenspaces of the universal adjacency matrices of arbitrary lifts of graphs 

    Dalfó Simó, Cristina; Fiol Mora, Miquel Àngel; Pavlíková, Sona; Siran, Josef (Taylor & Francis, 2022-02-19)
    Article
    Accés restringit per política de l'editorial
    The universal adjacency matrix U of a graph G, with adjacency matrix A, is a linear combination of A, the diagonal matrix D of vertex degrees, the identity matrix I, and the all-1 matrix J with real coefficients, that is, ...
  • Comprehensive study on the tropospheric Wet Delay and horizontal gradients during a severe weather event 

    Graffigna, Victoria; Hernández Pajares, Manuel; Azpilicueta, Francisco; Gende, Mauricio (Multidisciplinary Digital Publishing Institute (MDPI), 2022-02-12)
    Article
    Accés obert
    GNSS meteorology is today one of the most growing technologies to monitor severe weather events. In this paper, we present the usage of 160 GPS reference stations over the period of 14 days to monitor and track Hurricane ...

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