Browsing Simulation of Wave Propagation by Title
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Largeoffset Pwave traveltime in layered transversely isotropic media
(20210501)Largeoffset seismic data processing, imaging, and velocity estimation require an accurate traveltime approximation over a wide range of offsets. In layered transversely isotropic media with a vertical symmetry axis, the ... 
Local nonobtuse tetrahedral refinements around an edge
(20131231)In this note we show how to generate and conformly refine nonobtuse tetrahedral meshes locally around and towards an edge so that all dihedral angles of all resulting tetrahedra remain nonobtuse. The proposed technique can ... 
Low cost a posteriori error estimators for an augmented mixed FEM in linear elasticity. Dedicated to Professor Rodolfo Rodríguez on the occasion of his 60th birthday.
(20141231)We consider an augmented mixed finite element method applied to the linear elasticity problem and derive a posteriori error estimators that are simpler and easier to implement than the ones available in the literature. In ... 
Machininginduced characteristics of microstructuresupported LPBFIN718 curved thin walls
(202207)The microstructuresupported design of engineering components is recently gaining attention due to their high strengthtoweight and high stiffnesstoweight properties. The present study investigates the hybrid manufacturing ... 
Magnetotelluric characterization of the alhama de murcia fault (Eastern Betics)  Preliminary results
(20161231)The Lorca Earthquake (11/5/2011, Mw 5.2) stands as the most destructive in Spain over the last 50 years. It was interpreted as having occurred in an intersegment zone of the strikeslip Alhama de Murcia Fault (AMF). Within ... 
Majorant series for the Nbody problem
(20210101)As a followup of a previous work of the authors, this work considers uniform global timerenormalization functions for the gravitationalNbody problem. It improves on the estimates of the radii of convergence obtained ... 
Manufacturing of screw rotors via 5axis doubleflank CNC machining
(202011)We investigate a recently introduced methodology for 5axis flank computer numerically controlled (CNC) machining, called doubleflank milling [1]. We show that screw rotors are well suited for this manufacturing approach ... 
Massive Database Generation for 2.5D Borehole Electromagnetic Measurements using Refined Isogeometric Analysis
(202106)Borehole resistivity measurements are routinely inverted in realtime during geosteering operations. The inversion process can be efficiently performed with the help of advanced artificial intelligence algorithms such as ... 
The maximum angle condition is not necessary for convergence of the finite element method
(20121231)We show that the famous maximum angle condition in the finite element analysis is not necessary to achieve the optimal convergence rate when simplicial finite elements are used to solve elliptic problems. This condition ... 
Modeling extradeep electromagnetic logs using a deep neural network
(202105)Modern geosteering is heavily dependent on realtime interpretation of deep electromagnetic (EM) measurements. We have developed a methodology to construct a deep neural network (DNN) model trained to reproduce a full set ... 
Modeling of bone conduction of sound in the human head using hpfinite elements: Code design and verification
(20111231)We focus on the development of a reliable numerical model for investigating the boneconduction of sound in the human head. The main challenge of the problem is the lack of fundamental knowledge regarding the transmission ... 
The Modellers' Halting Foray into Ecological Theory: Or, What is This Thing Called 'Growth Rate'?
(20151231)This discussion paper describes the attempt of an imagined group of nonecologists ("Modellers" ) to determine the population growth rate from field data. The Modellers wrestle with the multiple definitions of the growth ... 
A modified discontinuous Galerkin method for solving efficiently Helmholtz problems
(20121231)A new solution methodology is proposed for solving efficiently Helmholtz problems. The proposed method falls in the category of the discontinuous Galerkin methods. However, unlike the existing solution methodologies, this ... 
A multidomain decompositionbased Fourier finite element method for the simulation of 3D marine CSEM measurements
(20170101)We introduce a multidomain decomposition Fourier finite element (MDDFFE) method for the simulation of threedimensional (3D) marine controlled source electromagnetic measurement (CSEM). The method combines a 2D finite ... 
Multiobjective hierarchic memetic solver for inverse parametric problems
(20151231)We propose a multiobjective approach for solving challenging inverse parametric problems. The objectives are misfits for several physical descriptions of a phenomenon under consideration, whereas their domain is a common ... 
A multiobjective memetic inverse solver reinforced by local optimization methods
(20160901)We propose a new memetic strategy that can solve the multiphysics, complex inverse problems, formulated as the multiobjective optimization ones, in which objectives are misfits between the measured and simulated states ... 
Necking in 2D incompressible polyconvex materials: theoretical framework and numerical simulations
(20170615)We show examples of 2D incompressible isotropic homogeneous hyperelastic materials with a polyconvex storedenergy function that present necking. The construction of the storedenergy function of amaterial satisfying all ... 
A new acoustic assumption for orthorhombic media
(202011)In exploration seismology, the acquisition, processing and inversion of Pwave data is a routine. However, in orthorhombic anisotropic media, the governing equations that describe the Pwave propagation are coupled with ... 
New post processing method for interpretation of through casing resistivity (TCR) measurements
(201103)We propose a new iterative method for post processing through casing resistivity (TCR) measurements. This method can be seen as a correction or extension of Kaufman´s theory to more complex scenarios, in which the casing ...