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David Pardo Zubiaur

Group Leader. BCAM - UPV/EHU Ikerbasque Research Professor

T +34 946 567 842
F +34 946 567 842
E dpardo@bcamath.org

Information of interest

Past Research Professor and Team Leader  "Multiphysics, Inversion and Petroleum" research line.

David Pardo received the B.S. degree in mathematics from the University of The Basque Country, Spain, in 2000, and the M.S. and Ph.D. degrees in computational and applied mathematics from The University of Texas at Austin, in 2002 and 2004, respectively. Then, he worked as a Postdoctoral Fellow and Research Associate at the Petroleum and Geosystems Engineering at The University of Texas at Austin during the period 2004-2008. Since Sept. 2008, he is a Research Professor and team leader of the group "Multiphysics, Inversion and Petroleum" at the Basque Center for Applied Mathematics (BCAM). Since Sept. 2009, he is also a Research Professor at IKERBASQUE, the Basque Foundation for Sciences. He has published over 50 publications and he has given over 80 presentations. His research interests include computational electromagnetics, petroleum-engineering applications (borehole simulations), adaptive finite-element methods, multigrid solvers, and multiphysics and inverse problems.

  • Robust Variational Physics-Informed Neural Networks 

    Rojas, S.Autoridad BCAM; Maczuga, P.; Muñoz-Matute, J.Autoridad BCAM; Pardo, D.Autoridad BCAM; Paszynski, M. (2024)
    We introduce a Robust version of the Variational Physics-Informed Neural Networks method (RVPINNs). As in VPINNs, we define the quadratic loss functional in terms of a Petrov-Galerkin-type variational formulation of the ...
  • Fast parallel IGA-ADS solver for time-dependent Maxwell's equations 

    Los, M.; Wozniak, M.; Pingali, K.; Garcia-Castillo, L.E.; Alvarez-Aramberri, J.Autoridad BCAM; Pardo, D.Autoridad BCAM; Paszyński, M. (2023-12)
    We propose a simulator for time-dependent Maxwell's equations with linear computational cost. We employ B-spline basis functions as considered in the isogeometric analysis (IGA). We focus on non-stationary Maxwell's equations ...
  • On building physics-based AI models for the design and SHM of mooring systems 

    Nava, V.Autoridad BCAM; Aristondo, A.; Varo, V.; Esteras, M.; Touzon, I.; Boto, F.; Mendikoa, I.; Ruiz-Minguela, P.; Gil-Lopez, S.; Gorostidi, N.Autoridad BCAM; Pardo, D.Autoridad BCAM (2023-01-01)
    Expert systems in industrial processes are modelled using physics-based approaches, data-driven models or hybrid approaches in which however the underlying physical models generally constitute a separate block with respect ...
  • Refined isogeometric analysis of quadratic eigenvalue problems 

    Hashemian, A.Autoridad BCAM; Garcia, D.; Pardo, D.Autoridad BCAM; Calo, V.M. (2022-07-16)
    Certain applications that analyze damping effects require the solution of quadratic eigenvalue problems (QEPs). We use refined isogeometric analysis (rIGA) to solve quadratic eigenproblems. rIGA discretization, while ...
  • Error representation of the time-marching DPG scheme 

    Muñoz-Matute, J.Autoridad BCAM; Demkowicz, Leszek; Pardo, D.Autoridad BCAM (2022-03-01)
    In this article, we introduce an error representation function to perform adaptivity in time of the recently developed time-marching Discontinuous Petrov–Galerkin (DPG) scheme. We first provide an analytical expression for ...
  • Deep learning enhanced principal component analysis for structural health monitoring 

    Fernandez-Navamuel, A.Autoridad BCAM; Magalhães, F.; Zamora-Sánchez, D.; Omella, A. J.; Garcia-Sanchez, D.; Pardo, D.Autoridad BCAM (2022-01-18)
    This paper proposes a Deep Learning enhanced Principal Component Analysis (PCA) approach for outlier detection to assess the structural condition of bridges. We employ a partially explainable autoencoder architecture to ...
  • Deep learning enhanced principal component analysis for structural health monitoring 

    Fernandez-Navamuel, A.Autoridad BCAM; Magalhães, Filipe; Zamora-Sánchez, Diego; Omella, Ángel J.; Garcia-Sanchez, David; Pardo, D.Autoridad BCAM (2022-01-01)
    This paper proposes a Deep Learning Enhanced Principal Component Analysis (PCA) approach for outlier detection to assess the structural condition of bridges. We employ partially explainable autoencoder architecture to ...
  • Deep learning driven self-adaptive hp finite element method 

    Paszyński, M.; Grzeszczuk, R.; Pardo, D.Autoridad BCAM; Demkowicz, L. (2021-06)
    The fi nite element method (FEM) is a popular tool for solving engineering problems governed by Partial Di fferential Equations (PDEs). The accuracy of the numerical solution depends on the quality of the computational ...
  • Modeling extra-deep electromagnetic logs using a deep neural network 

    Alyaev, S.; Shahriari, M.; Pardo, D.Autoridad BCAM; Omella, A. J.; Larsen, D.; Jahani, N.; Suter, E. (2021-05)
    Modern geosteering is heavily dependent on real-time 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 ...
  • Refined isogeometric analysis for generalized Hermitian eigenproblems 

    Hashemian, A.Autoridad BCAM; Pardo, D.Autoridad BCAM; Calo, V.M. (2021-04)
    We use refined isogeometric analysis (rIGA) to solve generalized Hermitian eigenproblems (Ku = λMu). rIGA conserves the desirable properties of maximum-continuity isogeometric analysis (IGA) while it reduces the solution ...
  • A Simulation Method for the Computation of the E 

    Omella, A. J.; Alvarez-Aramberri, J.Autoridad BCAM; Strugaru, M.Autoridad BCAM; Darrigrand, V.; Pardo, D.Autoridad BCAM; Gonzalez, H.; Santos, C. (2021-03)
    We propose a set of numerical methods for the computation of the frequency-dependent eff ective primary wave velocity of heterogeneous rocks. We assume the rocks' internal microstructure is given by micro-computed tomography ...
  • Vibration-Based SHM Strategy for a Real Time Alert System with Damage Location and Quantification 

    Fernandez - Navamuel, A.; Zamora - Sánchez, D.; Varona - Poncela, T.; Jiménez - Fernández, C.; Díez - Hernández, J.; García Sánchez, D.; Pardo, D.Autoridad BCAM (2021-01-11)
    We present a simple and fully automatable vibration-based Structural Health Monitoring (SHM) alert system. The proposed method consists in applying an Automated Frequency Domain Decomposition (AFDD) algorithm to obtain the ...
  • Vibration-Based SHM Strategy for a Real Time Alert System with Damage Location and Quantification 

    Fernández-Navamuel, A.; Zamora-Sánchez, D.; Varona-Poncela, T.; Jiménez-Fernández, C.; Díez-Hernández, J.; García-Sánchez, D.; Pardo, D.Autoridad BCAM (2021-01)
    We present a simple and fully automatable vibration-based Structural Health Monitoring (SHM) alert system. The proposed method consists in applying an Automated Frequency Domain Decomposition (AFDD) algorithm to obtain the ...
  • A Finite Element based Deep Learning solver for parametric PDEs 

    Uriarte, C.Autoridad BCAM; Pardo, D.Autoridad BCAM; Omella, A. J. (2021)
    We introduce a dynamic Deep Learning (DL) architecture based on the Finite Element Method (FEM) to solve linear parametric Partial Differential Equations(PDEs). The connections between neurons in the architecture mimic the ...
  • A DPG-based time-marching scheme for linear hyperbolic problems 

    Muñoz-Matute, J.Autoridad BCAM; Pardo, D.Autoridad BCAM; Demkowicz, L. (2020-11)
    The Discontinuous Petrov-Galerkin (DPG) method is a widely employed discretization method for Partial Di fferential Equations (PDEs). In a recent work, we applied the DPG method with optimal test functions for the time ...
  • Bearing assessment tool for longitudinal bridge performance 

    Garcia-Sanchez, D.; Fernandez-Navamuel, A.Autoridad BCAM; Zamora, D.; Alvear, D.; Pardo, D.Autoridad BCAM (2020-09)
    This work provides an unsupervised learning approach based on a single-valued performance indicator to monitor the global behavior of critical components in a viaduct, such as bearings. We propose an outlier detection ...
  • A Deep Learning Approach to the Inversion of Borehole Resistivity Measurements 

    Shahriari, M.; Pardo, D.Autoridad BCAM; Picon, A.; Galdran, A.; Del Ser, J.Autoridad BCAM; Torres-Verdin, C. (2020-04)
    Borehole resistivity measurements are routinely employed to measure the electrical properties of rocks penetrated by a well and to quantify the hydrocarbon pore volume of a reservoir. Depending on the degree of geometrical ...
  • A Painless Automatic hp-Adaptive Strategy for Elliptic Problems 

    Darrigrand, V.; Pardo, D.Autoridad BCAM; Chaumont-Frelet, T.; Gómez-Revuelto, I.; Garcia-Castillo, E. (2020-01)
    In this work, we introduce a novel hp-adaptive strategy. The main goal is to minimize the complexity and implementational efforts hence increasing the robustness of the algorithm while keeping close to optimal numerical ...
  • Variational Formulations for Explicit Runge-Kutta Methods 

    Muñoz-Matute, J.Autoridad BCAM; Pardo, D.Autoridad BCAM; Calo, V.M.; Alberdi, E. (2019-08)
    Variational space-time formulations for partial di fferential equations have been of great interest in the last decades, among other things, because they allow to develop mesh-adaptive algorithms. Since it is known ...
  • Explicit-in-Time Goal-Oriented Adaptivity 

    Muñoz-Matute, J.Autoridad BCAM; Calo, V.M.; Pardo, D.Autoridad BCAM; Alberdi, E.; Van der Zee, K.G. (2019-04-15)
    Goal-oriented adaptivity is a powerful tool to accurately approximate physically relevant solution features for partial differential equations. In time dependent problems, we seek to represent the error in the quantity of ...
  • Forward-in-Time Goal-Oriented Adaptivity 

    Muñoz-Matute, J.Autoridad BCAM; Pardo, D.Autoridad BCAM; Calo, V.M.; Alberdi, E. (2019-03)
    In goal-oriented adaptive algorithms for partial differential equations, we adapt the finite element mesh in order to reduce the error of the solution in some quantity of interest. In time-dependent problems, this adaptive ...
  • Parallel refined Isogeometric Analysis in 3D 

    Siwik, L.; Wozniak, M.; Trujillo, V.; Pardo, D.Autoridad BCAM; Calo, V.M.; Paszynski, M. (2018-11)
    We study three-dimensional isogeometric analysis (IGA) and the solution of the resulting system of linear equations via a direct solver. IGA uses highly continuous $C^{p-1}$ basis functions, which provide multiple benefits ...
  • Fast 2.5D Finite Element Simulations of Borehole Resistivity Measurements 

    Rodriguez-Rozas, A.; Pardo, D.Autoridad BCAM; Torres-Verdin, C. (2018-05-29)
    We develop a rapid 2.5-dimensional (2.5D) finite element method for simulation of borehole resistivity measurements in transversely isotropic (TI) media. The method combines arbitrary high-order $H^1$ - and $H$ (curl)-conforming ...
  • Source time reversal (STR) method for linear elasticity 

    Brevis, R.I.; Rodríguez-Rozas, A.; Ortega, J.H.; Pardo, D.Autoridad BCAM (2018)
    We study the problem of source reconstruction for a linear elasticity problem applied to seismicity induced by mining. We assume the source is written as a variable separable function $\mathbf{f(x)}\>g(t)$ . We first present ...
  • Fast Simulation of 2.5D LWD Resistivity Tools 

    Rodríguez-Rozas, A.; Pardo, D.Autoridad BCAM; Torres-Verdín, C. (2017-06)
    As a first step towards the fast inversion of geophysical data, in this work we focus on the rapid simulations of 2.5D logging-while-drilling (LWD) borehole resistivity measurements. Given a commercial logging instrument ...
  • Optimally refined isogeometric analysis 

    Garcia, D.; Barton, M.Autoridad BCAM; Pardo, D.Autoridad BCAM (2017-06)
    Performance of direct solvers strongly depends upon the employed discretization method. In particular, it is possible to improve the performance of solving Isogeometric Analysis (IGA) discretizations by introducing multiple ...
  • Fusion-based variational image dehazing 

    Galdran, A.; Vazquez-Corral, J.; Pardo, D.Autoridad BCAM; Bertalmio, M. (2017-02-01)
    We propose a novel image-dehazing technique based on the minimization of two energy functionals and a fusion scheme to combine the output of both optimizations. The proposed fusion-based variational image-dehazing (FVID) ...
  • A source time reversal method for seismicity induced by mining 

    Brevis, R.I.; Ortega, J.H.; Pardo, D.Autoridad BCAM (2017-01-01)
    In this work, we present a modified Time-Reversal Mirror (TRM) Method, called Source Time Reversal (STR), to find the spatial distribution of a seismic source induced by mining activity. This methodology is based on a known ...
  • The value of continuity: Refined isogeometric analysis and fast direct solvers 

    Garcia, D.; Pardo, D.Autoridad BCAM; Dalcin, L.; Paszynski, M.; Collier, N.; Calo, V.M. (2016-09-23)
    We propose the use of highly continuous finite element spaces interconnected with low continuity hyperplanes to maximize the performance of direct solvers. Starting from a highly continuous Isogeometric Analysis (IGA) ...
  • A multi-objective memetic inverse solver reinforced by local optimization methods 

    Gajda-Zagórska, E.; Schaefer, R.; Smolka, M.; Pardo, D.Autoridad BCAM; Alvarez-Aramberri, J.Autoridad BCAM (2016-09-01)
    We propose a new memetic strategy that can solve the multi-physics, complex inverse problems, formulated as the multi-objective optimization ones, in which objectives are misfits between the measured and simulated states ...
  • Enhanced variational image dehazing 

    Galdran, A.; Vazquez-Corral, J.; Pardo, D.Autoridad BCAM; Bertalmio, M. (2015-12-31)
    Images obtained under adverse weather conditions, such as haze or fog, typically exhibit low contrast and faded colors, which may severely limit the visibility within the scene. Unveiling the image structure under the haze ...
  • Multi-objective hierarchic memetic solver for inverse parametric problems 

    Gajda-Zagórska, E.; Smolka, M.; Schaefer, R.; Pardo, D.Autoridad BCAM; Alvarez-Aramberri, J.Autoridad BCAM (2015-12-31)
    We propose a multi-objective 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 ...
  • Automatic Red-Channel underwater image restoration 

    Galdran, A.; Pardo, D.Autoridad BCAM; Picón, A.; Alvarez-Gila, A. (2015-12-31)
    Underwater images typically exhibit color distortion and low contrast as a result of the exponential decay that light suffers as it travels. Moreover, colors associated to different wavelengths have different attenuation ...
  • Direct solvers performance on h-adapted grids 

    Paszynski, M.; Pardo, D.Autoridad BCAM; Calo, V.M. (2015-12-31)
    We analyse the performance of direct solvers when applied to a system of linear equations arising from an $h$-adapted, $C^0$ finite element space. Theoretical estimates are derived for typical $h$-refinement patterns arising ...
  • An Agent-Oriented Hierarchic Strategy for Solving Inverse Problems 

    Smolka, M.; Schaefer, R.; Paszynski, M.; Pardo, D.Autoridad BCAM; Alvarez-Aramberri, J.Autoridad BCAM (2015-12-31)
    The paper discusses the complex, agent-oriented hierarchic memetic strategy (HMS) dedicated to solving inverse parametric problems. The strategy goes beyond the idea of two-phase global optimization algorithms. The global ...
  • A hybrid method for inversion of 3D DC resistivity logging measurements 

    Gajda-Zagórska, E.; Schaefer, R.; Smolka, M.; Paszynski, M.; Pardo, D.Autoridad BCAM (2014-12-31)
    This paper focuses on the application of hp hierarchic genetic strategy (hp-HGS) for solution of a challenging problem, the inversion of 3D direct current (DC) resistivity logging measurements. The problem under consideration ...

More information

 

Date Title Place Author/s Type
2010-01-30 Simulation of Logging Measurements using hp-Finite Elements
KAUST University, Saudi Arabia
D. Pardo, P. Matuszyk, M.J. Nam, C. Torres-Verdín, V. M. Calo, Presentations

2009-12-10

Simulation of Sonic and Resistivity Logging Measurements Using hp-Finite Elements University of Barcelona, Spain D. Pardo, M. Paszynski, P. Matuszyk, M.J. Nam, C. Torres-Verdín, Presentations
2009-10-13 Simulation of eccentricity effects on short and normal logging measurements using a self-adaptive hp finite element method 9th SEGJ International Symposium, Sapporo, Japan M. J. Nam, S. Hwang, D. Pardo, K. G. Park, C. Lee, C. Torres-Verdín,
 
Presentations
2009-10-08 Computational Challenges Associated to the Simulation of Sonic and Resistivity Logging Measurements Using hp-Finite Elements. AGH University of Science and Technology, Krakow, Poland D. Pardo, M. Paszynski, C. Torres-Verdín, Presentations
2009-09-08 Parallel direct solvers for adaptive Finite Element and Finite Difference Method Basque Center for Applied Mathematics, Bilbao, Spain M. Paszynski, D. Pardo, L. Demkowicz, V.Calo, Presentations
2009-09-01 A hp-Finite Element Method Applied to the Simulation of Electromagnetics and Acoustic/Elastic Borehole Logging Measurements Partial Differential Equations, Optimal Design, and Numerics, Benasque, Spain D. Pardo, P. Matuszyk, M. J. Nam, C. Torres-Verdin, V. Calo, Presentations
2009-08-21 Parallel mutli-frontal node based solver for hp Finite Element Method Institute for Computational Engineering and Science, UT Austin, TX, USA M. Paszynski, D. Pardo, L. Demkowicz, V.Calo, Presentations
2009-08-20 Computing with hp-Finite Elements National Instruments, Austin, TX, USA L. Demkowicz, D. Pardo, Presentations
2009-08-14 Simulation of Tri-Axial Induction Measurements in the Presence of Tool Eccentricity Using a Fourier Series Expansion in a New Sytem of Coordinates and a Self-Adaptive hp-Finite Element Method Joint Industry Research Consortium on Formation Evaluation (Ninth Annual Meeting), Austin, TX, USA M. J. Nam, D. Pardo, C. Torres-Verdin, Presentations
2009-08-14 2D Finite Element Simulation of Sonic Measurements Acquired in the Presence of a Tool Mandrel Joint Industry Research Consortium on Formation Evaluation (Ninth Annual Meeting), Austin, TX, USA P. Matuszyk, L. Demowicz, D. Pardo, J. Ma, C. Torres-Verdin, Presentations
2009-07-24 Simulación de Herramientas de Prospección Petrolífera Basadas en el Electromagnetismo Utilizando un Método de Elementos Finitos First Joint Congress of RSME-SMM, Oaxaca, Mexico D. Pardo, M. J. Nam, C. Torres-Verdín, V. Calo, Presentations
2009-07-24
Desarrollo de un Método de Elementos Finitos para Realizar Simulaciones Multifásicas de Gran Precisión
First Joint Congress of RSME-SMM, Oaxaca, Mexico
D. Pardo, M. J. Nam, C. Torres-Verdin, I. Garay,  
Presentations
2009-07-17 A Fourier-Finite-Element Method in a Non-Orthogoal System of Coordinates for the Simulation of 3D Resistivity Logging Measurements Acquired in Deviated Wells U.S. National Congress on Computational Mechanics 10, Columbus, OH, USA D. Pardo, M. J. Nam, C. Torres-Verdín, V. M. Calo, Presentations
2009-06-11 Parallel Goal-Oriented Adaptivity for a Fourier Finite Element Method. Applications to the Oil-Industry, Mathematics of Finite Elements and its Applications (MAFELAP 2009) D. Pardo, M. J. Nam, C. Torres-Verdín, J. Kurtz, Presentations
2009-05-27 A hp Fourier-Finite-Element Framework with Multiphysics Applications International Conference on Adaptive Modeling and Simulations (ADMOS 2009), Bruxelles, Belgium D. Pardo,  M. J. Nam, C. Torres-Verdin, Presentations
2009-05-11 Multiphysics, Inversion, and Petroleum, CIC bioGUNE D. Pardo, Presentations
2009-05-06 Simulation of Short and Normal Logging Measurements in the Presence of Tool Eccentricity Using Fourier Series Expansion in a New System of Coordinates and a Self-Adaptive hp-Finite Element Method, Confrence of the Korean Society for Geosystems Engineering M. J. Nam, S. Hwang, D. Pardo, K. G. Park, C. Lee, C. Torres-Verdin, Presentations
2009-05-06 Goal-Oriented High-Order Self-Adaptive hp-Finite Element Simulation of Dual-Laterolog Measurements Conference of the Korean Society for Geosystems Engineering M. J. Nam, D. Pardo, C. Torres-Verdín, Presentations
2009-04-22 Self-Adaptive hp-Finite Elemetn Simulation of Multi-Component Induction Measurements Conference of the Korean Society of Economic and Environmental Geology M. J. Nam, D. Pardo, C. Torres-Verdín, Presentations
2009-03-20 A Framework for the Simulation of Multiphysics Problems Based on a hp Fourier-Finite-Element Method CERFACS, Toulouse, France D. Pardo, M. J. Nam, C. Torres-Verdín, Presentations
2009-02-12 A Framework for the Simulation of Multiphysics Problems Based on a hp Fourier-Finite-Element Method University of Pau, France D. Pardo, M. J. Nam, C. Torres-Verdin, Presentations
2009-01-08
Desarrollo de un Método de Elementos Finitos para Realizar Simulaciones Multifásicas de Gran Precisión
Universidad del Pais Vasco, Leioa, Vizcaya, Spain D. Pardo, M. J. Nam, C. Torres-Verdín, Presentations
2008-11-10 Inversion of Resistivity and Multiphysics Measurements. Part I: Main Idea and Library Design Basque Center for Applied Mathematics, Bilbao, Spain D. Pardo, C. Torres-Verdín, M. J. Nam, V. M. Calo,  Presentations
2008-10-23 An hp Fourier Finite Element (FFE) Framework with Electromagnetics and Multiphysics Applications VI Iberian Meeting on Computational Electromagnetism, Chiclana, Spain D. Pardo, C. Torres-Verdin, L. E. García-Castillo, M. Paszynski, M. J. Nam, Presentations
2008-10-21 Self-Adaptive hp-Finite Element Simulation of Multi-component Induction Measurements Acquired in Dipping, Invaded, and Anisotropic Formations SiG Resistivity Meeting, Houston, TX, USA M. J. Nam, D. Pardo, C. Torres-Verdin, Presentations
2008-10-03 Multiphysics, Petroleum, and Inversion Basque Center for Applied Mathematics, Bilbao, Spain D. Pardo, Presentations
2008-09-08 Self-Adaptive hp Finite-Element Simulation of Multi-Component Induction and DC/AC Dual- Laterolog Measurements Acquired in Dipping, Invaded, and Anisotropic Formations Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon, Korea Myung Jin Nam, D. Pardo, C. Torres-Verdín, Presentations
2008-08-25 Simulations of 2.5D Marine Controlled Source Electromagnetic Measurements (CSEM) Using hp-Finite Elements Chevron, San Ramon, CA, USA D. Pardo, C. Torres-Verdin, M.J. Nam, Presentations
2008-08-14 Multi-Physics Inversion of Borehole Resistivity Measurements. Part I: Algorithms, Methods, and Library Design. Joint Industry Research Consortium on Formation Evaluation (Eight Annual Meeting), Austin, TX, USA D. Pardo, C. Torres-Verdin, M. J. Nam, V. M. Calo,  Presentations
2008-08-13 Software Update on Multi-Physics Simulation and Inversion of Borehole Measurements Joint Industry Research Consortium on Formation Evaluation (Eight Annual Meeting), Austin, TX, USA D. Pardo, C. Torres-Verdin, M. J. Nam, V. M. Calo, P.J. Matuszyk,  Presentations
2008-08-13 Software Update on Finite Element Simulation of DC/AC Resistivity Measurements Joint Industry Research Consortium on Formation Evaluation (Eight Annual Meeting), Austin, TX, USA D. Pardo, M.J. Nam, C. Torres-Verdin,  Presentations
2008-08-11 Self-Adaptive hp Finite-Element Simulation of AC/DC Dual Laterolog Measurements in Dipping, Invaded, and Anisotropic Formations Joint Industry Research Consortium on Formation Evaluation (Eight Annual Meeting), Austin, TX, USA M.J. Nam, D. Pardo, and C. Torres-Verdin,  Presentations
2008-08-11 Self-Adaptive hp Finite-Element Simulation of Multi-Component Induction Measurements Acquired in Dipping, Invaded, and Anisotropic Formations Joint Industry Research Consortium on Formation Evaluation (Eight Annual Meeting), Austin, TX, USA M.J. Nam, D. Pardo, and C. Torres-Verdin,  Presentations
2008-07-02 A Fourier-finite Element Formulation and an Iterative Solver for the Simulation of 3D Induction Measurements Acquired in Deviated Wells PIERS 2008 in Cambridge, Boston, MA, USA D. Pardo, M. J. Nam, C. Torres-Verdin, and M. Paszynski, Presentations
2008-07-02 Design of Frequency-domain EM Finite Elements for Geophysical Applications PIERS 2008 in Cambridge, Boston, MA, USA D. Pardo, M. J. Nam, C. Torres-Verdin, and M. Paszynski, Presentations
2008-06-24 New Developments for the Simulation of Galvanic and Induction Logging Measurements in Deviated Wells with Possibly Eccentered Tools SiG Resistivity Meeting, Houston, TX, USA D. Pardo, M. J. Nam, C. Torres-Verdin, L. Demkowicz, Presentations
2008-05-26 Parallel Goal-Oriented Fully Automatic hp Adaptive Finite Element Method Algorithm with Shared Data Structures Advances in Structural Engineering and Mechanics (ASEM 2008), Jeju, Korea M. Paszynski, D. Pardo, C. Torres-Verdin, Presentations
2008-02-29 Simulation of 3D DC and AC Borehole Resistivity Measurements Using a Fourier Series Expansion in a Non-Orthogonal System of Coordinates Poster Presentation at The University of Texas at Austin (SXSVD Golub's day), Austin, TX, USA D. Pardo, M. J. Nam, C. Torres-Verdin, V. Calo, M. Paszynski, Presentations
2008-01-15 Towards Accurate Simulations of AC Dual-Laterolog Measurements with Tool Eccentricity Using hp Finite Elements Baker-Hughes, Houston, TX, USA M. J. Nam, D. Pardo, C. Torres-Verdin, Presentations
2007-12-07 Geophysical Simulations Using hp-Finite Elements The University of Texas at Austin, Austin, TX, USA D. Pardo, C. Torres-Verdin, M.J. Nam, M. Paszynski, L. Demkowicz, Presentations
2007-12-03 Efficient Sequential and Parallel Solvers for the hp-Finite Element Method APCOM07 in conjuction with EPMESC XI, Kyoto, Japan M. Paszynski, D. Pardo, C. Torres-Verdin, Presentations
2007-09-26 Numerical Simulation of 3D EM Borehole Measurements Using an hp-Adaptive Goal-Oriented Finite Element Formulation SEG annual meeting, San Antonio, TX, USA D. Pardo, M.J. Nam, C. Torres-Verdin, M. Paszynski, V.M. Calo, Presentations
2007-09-19 Numerical Simulations of 3D DC and AC Resistivity Logging Measurements in Deviated Wells Using a Fourier Series Expansion in a Non-Orthogonal System of Coordinates Schlumberger, Houston, TX, USA D. Pardo, M.J. Nam, C. Torres-Verdin, M. Paszynski, V.M. Calo,  Presentations
2007-09-04 Simulaciones Numericas en la Industria del Petroleo Utilizando Elementos Finitos hp Instituto Madrileño de Estudios Avanzados (IMDEA), Madrid, Spain D. Pardo, M. Paszynski, C. Torres-Verdin, M. J. Nam, Ch. Michler, L. Demkowicz, Presentations
2007-09-04 Three-Dimensional Oil-Industry Applications Using a Goal-Oriented hp-Finite Element Method Stanislaw Staszic University of Science and Technology, Krakow, Poland D. Pardo, M. Paszynski, C. Torres-Verdin, M. J. Nam, Ch. Michler, L. Demkowicz,  Presentations
2007-08-27 Numerical Simulations of 3D DC and AC Resistivity Logging Measurements Using a Fourier Series Expansion in a Non-Orthogonal System of Coordinates and a 2D hp-FEM Baker-Hughes, Houston, TX, USA D. Pardo, C. Torres-Verdin, M. J. Nam, M. Paszynski, V.M. Calo, Presentations
2007-08-27 Self-Adaptive hp-Finite Element Simulation of Dual-Laterolog Measurements in Dipping, Invaded, and Anisotropic Formations Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon, Korea M. J. Nam, D. Pardo, C. Torres-Verdin, Presentations
2007-08-17 Fast Numerical Simulation of 3D DC/AC Borehole Resistivity Measurements with a Parallel hp-Adaptive and Goal-Oriented Finite Element Method Joint Industry Research Consortium on Formation Evaluation (Seventh Annual Meeting), Austin, TX, USA M. Paszynski, D. Pardo, C. Torres-Verdin, Presentations
17-08-2007 Self-Adaptive hp-Finite Element Simulation of Dual-Laterolog Measurements in Dipping, Invaded, and Anisotropic Formations Joint Industry Research Consortium on Formation Evaluation (Seventh Annual Meeting), Austin, TX, USA M. J. Nam, D. Pardo, C. Torres-Verdin Presentations
16-08-2007 Software Update on Finite Element Simulation of DC/AC Borehole Resistivity Measurements Joint Industry Research Consortium on Formation Evaluation (Seventh Annual Meeting), Austin, TX, USA D. Pardo, C. Torres-Verdin, M.J. Nam, M. Paszynski Presentations
25-07-2007 Simulations of Borehole Acoustic Measurements with Adaptive Finite Elements U.S. National Congress on Computational Mechanics 9, San Francisco, CA, USA C. Michler, L. Demkowicz, D. Pardo, C. Torres-Verdin Presentations
24-07-2007 A Nested Dissection Parallel Direct Solver for Simulations of 3D DC/AC Resistivity Measurements U.S. National Congress on Computational Mechanics 9, San Francisco, CA, USA M. Paszynski, D. Pardo, C. Torres-Verdin Presentations
24-07-2007 Numerical Simulations of 3D Borehole Resistivity Measurements Using a Fourier Series Expansion in a Non-Orthogonal System of Coordinates U.S. National Congress on Computational Mechanics 9, San Francisco, CA, USA D. Pardo, C. Torres-Verdin, M. J. Nam, V. M. Calo, M. Paszynski,  Presentations
07-06-2007 Fully Automatic hp-Adaptivity for Electromagnetics. Application to the Analysis of H-plane and E-plane Rectangular Waveguide Discontinuities IEEE MTT-S International Microwave Symposium, Honolulu, Hawaii, USA L.E. Garcia-Castillo, D. Pardo, L. Demkowicz, Presentations
03-03-2007 Efficient simulation of borehole acoustic measurements using adaptive finite elements Finite Element Rodeo, Houston, TX, USA C. Michler, L. Demkowicz, C. Torres-Verdin, D. Pardo, J. Kurtz, Presentations
21-02-2007 A Three-Dimensional Self-Adaptive, Goal-Oriented hp-Finite Element Method with a Multigrid Solver. Applications to Electromagnetics SIAM Conference in Computational Science and Engineering, Costa Mesa, CA, USA D. Pardo, L. Demkowicz, C. Torres-Verdin, M. Paszynski, Presentations
22-01-2007 Efficient computation of acoustic sensing by means of adaptive finite elements McGill University, Montreal, Canada C. Michler, L. Demkowicz, C. Torres-Verdin, D. Pardo, J. Kurtz Presentations
15-01-2007 Conversion of Meshes Between 2D and 3D hp Adaptive Parallel Finite Element Method Codes XIV Conference Computer Methods in Material Science KomPlasTech 2007, Zakopane, Poland M. Paszynski, D. Pardo, L. Demkowicz, C. Torres-Verdin, Presentations
22-11-2006 Efficient computation of acoustic sensing with hp-adaptive finite elements Texas A&M University, College Station, TX, USA C. Michler, L. Demkowicz, C. Torres-Verdin, D. Pardo, J. Kurtz, Presentations
15-11-2006 A Two-Grid Goal-Oriented Iterative Solver for hp-FE Discretizations with Possibly Elongated Elements of Elliptic Problems Eight IMACS International Symposium on Iterative Methods in Scientific Computation, College Station, TX, USA D. Pardo, L. Demkowicz, C. Torres-Verdin, Presentations
20-09-2006 Parallel hp-Finite Element Simulations of 3D Resistivity Logging Instruments 13th ISPE International Conference on Concurrent Engineering, Antibes, France M. Paszynski, D. Pardo, L. Demkowicz, C. Torres-Verdin, Presentations
17-08-2006 Numerical Simulations of 3D DC and AC Resistivity Logging Measurements in Deviated Wells Using a Fourier Series Expansion in a Non-Orthogonal System of Coordinates Joint Industry Research Consortium on Formation Evaluation (Sixth Annual Meeting), Austin, TX, USA D. Pardo, M. Paszynski, C. Torres-Verdin, L. Demkowicz, Presentations
17-08-2006 Parallel Numerical Simulation of 3D DC Borehole Resistivity Measurements Using an hp-Adaptive Goal-Oriented Finite Element Formulation Joint Industry Research Consortium on Formation Evaluation (Sixth Annual Meeting), Austin, TX, USA M. Paszynski, D. Pardo, C. Torres-Verdin, L. Demkowicz, Presentations
16-08-2006 2D Simulations of Resistivity Logging Measurements (DEMO) Joint Industry Research Consortium on Formation Evaluation (Sixth Annual Meeting), Austin, TX, USA D. Pardo, Presentations
11-07-2006 A 2D and 3D hp-Finite Element Method for Simulation of Through Casing Resistivity Logging Instruments (Poster Presentation) 2006 IEEE Antennas and Propagation Society International Symposium and URSI National Radio Science Meeting, Albuquerque, NM, USA D. Pardo, C. Torres-Verdin, M. Paszynski, C. Michler, L. Demkowicz, Presentations
08-07-2006 Simulation of Surface-to-Borehole and Cross-Well EM Measurements Due to Energized Steel Casing. Part II. Shell, Houston, TX, USA D. Pardo, C. Torres-Verdin, W. Yang, Presentations
23-06-2006 The Development of a 3D Self-Adaptive Goal-Oriented hp-Finite Element Software for Simulations of DC Resistivity Logging Instruments Baker Hughes, Houston, TX, USA D. Pardo, C. Torres-Verdin, W. Yang, Presentations
14-06-2006 High Accuracy Simulations of 2D and 3D Resistivity Logging Instruments Using a Self-Adaptive Goal-Oriented hp-FEM The Mathematics of Finite Elements and its Applications (MAFELAP) 2006, Brunel University, Uxbridge, United Kingdom D. Pardo, C. Torres-Verdin, L. Demkowicz, Presentations
05-05-2006 2D and 3D High Accuracy Simulations of Resistivity Logging Instruments Using A Self-Adaptive Goal-Oriented hp Finite Element Method Department of Geophysics, Colorado School of Mines, USA D. Pardo, C. Torres-Verdin, L. Demkowicz, C. Michler, Presentations
01-05-2006 A Two-Dimensional Self-Adaptive hp Finite Element Method for the Analysis of Open Region Problems in Electromagnetics 12th Biennial IEEE Conference on Electromagnetic Field Computation (IEEE CEFC2006), Miami, FL, USA I. Gomez-Revuelto, L. E. Garcia-Castillo, D. Pardo, L. Demkowicz, Presentations
23-01-2006 Simulation of Surface-to-Borehole and Cross-Well EM Measurements Due to Energized Steel Casing Shell, Houston, TX, USA D. Pardo, C. Torres-Verdin, W. Yang, L. Demkowicz, Presentations
13-12-2005 The Development of a 3D Self-Adaptive Goal-Oriented hp-Finite Element Software for Simulations of Resistivity Logging Instruments. A Progress Report Baker-Hughes, Houston, TX, USA D. Pardo, L. Demkowicz, C. Torres-Verdin, M. Paszynski, J. Kurtz, Presentations
18-11-2005 The hp-Adaptive Finite Element Method: A Short Course. Baker-Hughes, Novosibirsk, Russia L. Demkowicz, D. Pardo, C. Torres-Verdin,  Presentations
15-09-2005 Adaptatividad Automatica hp en Electromagnetismo. Aplicacion al Analisis de Discontinuidades en Guia. XX Simposio Nacional de Electromagnetismo (URSI 2005), Gandia, Spain L.E. Garcia-Castillo, D. Pardo, L. Demkowicz, Presentations
08-09-2005 High Accuracy Simulations of Resistivity Logging Instruments Using A Self-Adaptive Goal-Oriented hp Finite Element Method International Conference on Adaptive Modeling and Simulations (ADMOS 2005), Barcelona, Spain D. Pardo, C. Torres-Verdin, L. Demkowicz,  Presentations
17-08-2005 Self-Adaptive Goal-Oriented hp-Finite Element Simulations of: (1) Axisymmetric Borehole Acoustics, and (2) 3D Resistivity Logging Instruments Joint Industry Research Consortium on Formation Evaluation (Fifth Annual Meeting), Austin, TX, USA D. Pardo, M. Paszynski, L. Demkowicz, C. Torres-Verdin, Presentations
17-08-2005 Self-Adaptive Goal-Oriented hp-Finite Element Simulations of Induction and Laterolog Measurements in the Presence of Steel Casing Joint Industry Research Consortium on Formation Evaluation (Fifth Annual Meeting), Austin, TX, USA D. Pardo, C. Torres-Verdin, L. Demkowicz, L. Tabarovsky, Presentations
16-08-2005 Automatic hp-Adaptivity. A Progress Report Mini-Workshop: Convergence of Adaptive Algorithms, Oberwolfach, Germany L. Demkowicz, J. Kurtz, D. Pardo, Presentations
28-07-2005 Short Course on hp-Finite Elements: A Self-Adaptive Goal-Oriented hp Finite Element Method with Electromagnetic Applications U.S. National Congress on Computational Mechanics 8, Austin, TX, USA D. Pardo, L. Demkowicz, C. Torres-Verdin,  Presentations
27-07-2005 High Accuracy Simulations of Resistivity Logging Instruments Using A Self-Adaptive Goal-Oriented hp Finite Element Method U.S. National Congress on Computational Mechanics 8, Austin, TX, USA D. Pardo, L. Demkowicz, C. Torres-Verdin, Presentations
15-06-2005 A Self-Adaptive Goal-Oriented hp-Finite Element Simulation of Resistivity Cross-Well Measurements with One Steel Cased Well Shell, Houston, TX, USA D. Pardo, Y. Wei, C. Torres-Verdin, L. Demkowicz, Presentations
15-06-2005 Simulation of Resistivity Logging Instruments with Mandrel Using a Self-Adaptive Goal-Oriented hp-Finite Element Method Shell, Houston, TX, USA D. Pardo, C. Torres-Verdin, L. Demkowicz, Presentations
02-06-2005 Progress Report: One Year on a Development of A Self-Adaptive Goal-Oriented hp-Finite Element Strategy for Simulations of Resistivity Logging Instruments Baker-Hughes, Houston, TX, USA D. Pardo, C. Torres-Verdin, L. Demkowicz, L. Tabarovsky, A. Bespalov, Presentations
05-05-2005 Fully Automatic hp-Adaptive Finite Element Method. Workshop on Multiscale Finite Element Methods, Austin, TX, USA L. Demkowicz, D. Pardo, J. Kurtz, C. Torres-Verdin, Presentations
04-03-2005 A Fully Automatic Goal-Oriented hp-Adaptive Finite Element Strategy for Simulations of Resistivity Logging Instruments Finite Element Rodeo, Dallas, TX, USA D. Pardo, L. Demkowicz, C. Torres-Verdin, Presentations
22-02-2005 Progress Report: A Fully Automatic Goal-Oriented hp-Adaptive Finite Element Strategy for Simulations of Resistivity Logging Instruments Baker-Hughes, Houston, TX, USA D. Pardo, C. Torres-Verdin, L. Demkowicz, L. Tabarovsky, A. Bespalov,  Presentations
12-12-2004 Estrategia de Refinamientos hp 'Orientada a un Objetivo' para la Simulacion de Herramientas Electromagneticas en Pozos Petroliferos Universidad Complutense de Madrid, Spain ; Universidad Carlos III de Madrid, Spain ; Universidad Autonoma de Madrid, Spain ; Universidad de Alcala de Henares, Madrid ; Universidad Politecnica de Valencia, Spain D. Pardo, L.Demkowicz, C. Torres-Verdin, L. Tabarovsky,  Presentations
27-10-2004 A New Fully Automatic Goal-Oriented hp-Adaptive Finite Element Strategy for Simulations of Resistivity Logging Instruments SiG Resistivity Meeting, Houston, TX, USA D. Pardo, C. Torres-Verdin, L. Demkowicz, Presentations
26-10-2004 A New Fully Automatic Goal-Oriented hp-Adaptive Finite Element Strategy for Simulations of Resistivity Logging Problems. Progress Report Center for Subsurface Modeling Affiliates Meeting, Austin, TX, USA D. Pardo, L. Demkowicz, C. Torres-Verdin, A. Bespalov, Presentations
19-08-2004 A New Fully Automatic Goal-Oriented hp-Adaptive Finite Element Strategy for Simulations of Resistivity Logging Instruments Joint Industry Research Consortium on Formation Evaluation (Fourth Annual Meeting), Austin, TX, USA D. Pardo, C. Torres-Verdin, L. Demkowicz, Presentations
27-07-2004  A Fully Automatic Goal-Oriented hp-Adaptive Strategy with Applications to Electromagnetics. Part I: A DC Resistivity Logging Problem Baker-Hughes, Houston, TX, USA D. Pardo, L. Demkowicz, C. Torres-Verdin, L. Tabarovsky, Presentations
03-06-2004 Estrategia de Refinamientos Automaticos hp Integrada con un Resolvedor de Dos Mallas: Aplicaciones al Electromagnetismo. Universidad del Pais Vasco, Spain D. Pardo, L. Demkowicz, Presentations
30-03-2004 Integration of hp-Adaptivity with a Two Grid Solver: Applications to Electromagnetics. Ph.D. Dissertation Defense The University of Texas at Austin, USA D. Pardo, Presentations
19-02-2004 Integration of hp-Adaptivity with a Two Grid Solver: Applications to Electromagnetics. Progress Report Baker-Hughes, Houston, TX, USA D. Pardo, L. Demkowicz, Presentations
18-01-2004 Integration of a Fully Automatic hp-Adaptive Strategy with a Two Grid Solver: Applications to Electromagnetics. VI Seminar in Computer Modeling and Microwave Engineering, Austin, TX, USA D. Pardo, Presentations
08-01-2004 Fully Automatic hp-Adaptive FEM for Maxwell's Equations in Three Dimensions AFOSR Electromagnetic Workshop, San Antonio, TX, USA L. Demkowicz, D. Pardo,  Presentations
15-12-2003 Estrategia de Refinamientos Automaticos hp Integrada con un Resolvedor de Dos Mallas: Aplicaciones al Electromagnetismo III Encuentro Iberico de Electromagnetismo Computacional, Sedano, Burgos, Spain D. Pardo, L. Demkowicz,  Presentations
15-12-2003 Estrategia de Refinamientos Automaticos hp Integrada con un Resolvedor de Dos Mallas: Aplicaciones al Electromagnetismo Universidad Autonoma de Madrid, Spain ; Universidad Carlos III de Madrid, Spain ; Universidad Politecnica de Valencia, Spain D. Pardo, L. Demkowicz, Presentations
12-11-2003 Integration of hp-Adaptivity with a Two Grid Solver: Applications to Electromagnetics. Progress Report. Baker-Hughes, Houston, TX, USA D. Pardo, Presentations
31-10-2003 Integration of hp-Adaptivity with a Two Grid Solver: Applications to Electromagnetics. Final Ph.D. Progress Report The University of Texas at Austin, USA D. Pardo, Presentations
09-09-2003 Integration of hp-Adaptivity with a Two Grid Solver: Applications to Electromagnetics US National Congress on Computational Mechanics 7, Albuquerque, NM, USA D. Pardo, L. Demkowicz, Presentations
09-09-2003 Integration of hp-Adaptivity with a Two Grid Solver: Applications to Electromagnetics. Adaptivity in Finite Element Analysis: Models, Meshes and Polynomial Order, Bad Honeff, Germany D. Pardo, L. Demkowicz,  Presentations
19-06-2003 An hp-Adaptive Finite Element (FE) Method for Solving Electromagnetic (EM) Problems with Special Emphasis in Petroleum Engineering Applications Baker-Hughes, Houston, TX, USA D. Pardo, Presentations
12-06-2003 Limitations of a Fully Automatic hp-Adaptive Strategy for the Finite Element (FE) Method Baker-Hughes, Houston, TX, USA D. Pardo, Presentations
22-05-2003 Analysis of Edge Singularities Arising in Electromagnetic Computations Baker-Hughes, Houston, TX, USA D. Pardo, Presentations
13-01-2003 Fully Automatic hp-Adaptive Simulations for Maxwell's Equations. AFOSR Electromagnetic Workshop, San Antonio, TX, USA L. Demkowicz, D. Pardo,  Presentations
08-11-2002 Integration of hp-Adaptivity with a Two Grid Solver: Applications to Electromagnetics. Ph.D. Project Proposal The University of Texas at Austin, USA D. Pardo, Presentations
14-03-2002 A Two Grid Solver for a 2D Fully Automatic hp-Adaptive Finite Element Code. FEM Rodeo, College Station, TX, USA D. Pardo, L. Demkowicz, Presentations
08-01-2002 Adaptive hp FE Modeling For Maxwell's Equations, A progress Report. AFOSR Electromagnetics Workshop, San Antonio, TX, USA L. Demkowicz, D. Pardo, Presentations