Relevant bibliographies by topics / Direct matrix inversion

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Direct matrix inversion'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Direct matrix inversion"

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Milovanovic, I. Z., M. A. Kovacevic, M. K. Stojcev, and E. I. Milovanovic. "A direct method for BBD matrix inversion." Cybernetics and Systems Analysis 30, no. 2 (1994): 200–212. http://dx.doi.org/10.1007/bf02366425.

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Schulte, Rolf F., and Florian Wiesinger. "Direct design of 2D RF pulses using matrix inversion." Journal of Magnetic Resonance 235 (October 2013): 115–20. http://dx.doi.org/10.1016/j.jmr.2013.07.014.

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Cao, Hui, Yun Liu, and Kun Peng Wang. "Improved Magnetotelluric Zohdy-Oldenburg Direct Inversion." Mathematical Problems in Engineering 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/174586.

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Based on researches of Baiyao (1995) and Zhang and Xu (2001), this paper proposes an improved 2D MT Zohdy-Oldenburg direct inversion method, in the least-square sense, embodying the features of Zohdy’s ratio method and Oldenburg’s difference method, in the condition of rugged topography, with phase information. It bypasses large calculations of the Jacobian matrix and large sparse linear systems of equations and enables direct modifications and comparisons of the model parameters. According to the calculation and analysis of examples, it shows faster convergence and higher precision. In contra
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BOWDEN, KEITH. "A DIRECT SOLUTION TO THE BLOCK TRIDIAGONAL MATRIX INVERSION PROBLEM." International Journal of General Systems 15, no. 3 (1989): 185–98. http://dx.doi.org/10.1080/03081078908935044.

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Qian, Yongxian, Zhenghui Zhang, Yi Wang, and Fernando E. Boada. "Decomposed direct matrix inversion for fast non-cartesian SENSE reconstructions." Magnetic Resonance in Medicine 56, no. 2 (2006): 356–63. http://dx.doi.org/10.1002/mrm.20974.

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Biczó, G., O. Fromm, J. Koutecký, and Anna Lee. "Inversion-free formulation of the direct recursion (transfer matrix) method." Chemical Physics 98, no. 1 (1985): 51–58. http://dx.doi.org/10.1016/0301-0104(85)80093-8.

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Li, Peng Ju, Huan Huan Liu, and Jia Yin Wei. "Method of Controlling the Inversion Quality of NMR T2 Spectrum." Advanced Materials Research 562-564 (August 2012): 1209–12. http://dx.doi.org/10.4028/www.scientific.net/amr.562-564.1209.

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In order to improve the application effect of the NMR in Petroleum exploration and development, the quality of T2 spectrum inversion need to be controlled. Echo resolution matrix,T2 spectrum resolution matrix are deduced, the quality control index of T2 spectrum inversion is provided: the stretch coefficient, maximum, minimum, average and range of principal diagonal elements of resolution matrix. Calculating the inversion quality control index under different observation modes and choosing the observation mode of resolution matrix approximate to unit matrix for data acquisition can improve T2
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Level, P., D. Moraux, P. Drazetic, and T. Tison. "On a direct inversion of the impedance matrix in response reanalysis." Communications in Numerical Methods in Engineering 12, no. 3 (1996): 151–59. http://dx.doi.org/10.1002/(sici)1099-0887(199603)12:3<151::aid-cnm951>3.0.co;2-g.

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Xiong, Zonghou. "Electromagnetic modeling of 3-D structures by the method of system iteration using integral equations." GEOPHYSICS 57, no. 12 (1992): 1556–61. http://dx.doi.org/10.1190/1.1443223.

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A new approach for electromagnetic modeling of three‐dimensional (3-D) earth conductivity structures using integral equations is introduced. A conductivity structure is divided into many substructures and the integral equation governing the scattering currents within a substructure is solved by a direct matrix inversion. The influence of all other substructures are treated as external excitations and the solution for the whole structure is then found iteratively. This is mathematically equivalent to partitioning the scattering matrix into many block submatrices and solving the whole system by
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Bilbao, Luis E., and Diana E. Grondona. "Inversion of First Kind Volterra Equations: Back to Direct Methods?" Zeitschrift für Naturforschung A 48, no. 11 (1993): 1119–30. http://dx.doi.org/10.1515/zna-1993-1111.

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Abstract Numerical inversion of the first kind Volterra equation (the Abel inversion included) has been extensively studied. Direct methods were probably the first methods used to attempt the inversion. Together with the computer hardware evolution, new methods were devised in order to deal with the inherent problem of this kind of equation, that is, error magnification. Using a large number of data points (several thousands) most methods are difficult to use, specially when the inversion and its error are required on line, that is, while performing the experiments. Further, error propagation
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Dissertations / Theses on the topic "Direct matrix inversion"

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POONDRU, SHIRDISH. "A NEW DIRECT MATRIX INVERSION METHOD FOR ECONOMICAL AND MEMORY EFFICIENT NUMERICAL SOLUTIONS." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1060976742.

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Weißflog, Julia. "Three-dimensional individual and joint inversion of direct current resistivity and electromagnetic data." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2017. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-220995.

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The objective of our studies is the combination of electromagnetic and direct current (DC) resistivity methods in a joint inversion approach to improve the reconstruction of a given conductivity distribution. We utilize the distinct sensitivity patterns of different methods to enhance the overall resolution power and ensure a more reliable imaging result. In order to simplify the work with more than one electromagnetic method and establish a flexible and state-of-the-art software basis, we developed new DC resistivity and electromagnetic forward modeling and inversion codes based on finite ele
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Mamani, Prieto Wilson Adlid. "Las Políticas en Materia de Inversión Extranjera Directa: Una Perspectiva Integral de Desarrollo." Foro Jurídico, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/119500.

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La inversión extranjera en un país en vía de desarrollo no es el eje principal en la cual se da el surgimiento económico- social de estos. Según el autor, quien nos detalla en el presente artículo, la inversión extranjera directa (IED) si bien en los países desarrollados potencializa el desarrollo, en los países en vía de desarrollo no se da de la misma manera; por el contrario, en estos países el desarrollo económico – social está condicionado por otros factores, para lo cual procede a realizar una explicación global de términos claves para mayor comprensión del tema.
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Weißflog, Julia. "Three-dimensional individual and joint inversion of direct current resistivity and electromagnetic data." Doctoral thesis, 2016. https://tubaf.qucosa.de/id/qucosa%3A23113.

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The objective of our studies is the combination of electromagnetic and direct current (DC) resistivity methods in a joint inversion approach to improve the reconstruction of a given conductivity distribution. We utilize the distinct sensitivity patterns of different methods to enhance the overall resolution power and ensure a more reliable imaging result. In order to simplify the work with more than one electromagnetic method and establish a flexible and state-of-the-art software basis, we developed new DC resistivity and electromagnetic forward modeling and inversion codes based on finite el
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Stein, Saskia. "Transformation and approximation of rational Krylov spaces with an application to 2.5-dimensional direct current resistivity modeling." 2020. https://tubaf.qucosa.de/id/qucosa%3A74328.

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Die vorliegende Arbeit befasst sich mit der Fragestellung, inwiefern sich gegebene Verfahren zur Approximation von rationalen Krylow-Räumen zur Berechnung von Matrixfunktionen eignen. Als Modellproblem wird dazu eine 2.5D-Formulierung eines Problems aus der Gleichstrom-Geoelektrik mit finiten Elementen formuliert und dann mittels Matrixfunktionen auf rationalen Krylow-Unterräumen gelöst. Ein weiterer Teil beschäftigt sich mit dem Vergleich zweier Verfahren zur Transformation bestehender rationaler Krylow-Räume. Bei beiden Varianten werden die zugrunde liegenden Pole getauscht ohne dass ein ex
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Book chapters on the topic "Direct matrix inversion"

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Sabbagh, L. David, Harold A. Sabbagh, and James S. Klopfenstein. "Image Enhancement via Extrapolation Techniques: A Two Dimensional Iterative Scheme a Direct Matrix Inversion Scheme." In Review of Progress in Quantitative Nondestructive Evaluation. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4615-7763-8_49.

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"Transfer Matrix Inversion." In Direct Eigen Control for Induction Machines and Synchronous Motors. A John Wiley & Sons, Ltd, 2012. http://dx.doi.org/10.1002/9781118460641.app3.

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"Direct Inversion of the Sample Covariance Matrix." In Introduction to Adaptive Arrays. Institution of Engineering and Technology, 2011. http://dx.doi.org/10.1049/sbew046e_ch5.

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Wolfe, Sam. "Old Spanish." In Verb Second in Medieval Romance. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198804673.003.0005.

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This chapter engages with recent criticism of Spanish’s status as a V2 language, suggesting that the criticism is ill-founded and arguing that it was a relatively strict V2 language, showing a prefield comparable to other V2 systems, Germanic-inversion, and direct object fronting without clitic resumption. Both verb-initial and verb-third orders are also shown to be heavily restricted in certain later Old Spanish texts when compared to other Medieval Romance V2 varieties. The chapter challenges the notion that Old Spanish was a symmetrical V2 language, presenting quantitative data that it showed word order asymmetries between matrix and embedded clauses, which are typical of asymmetric V2 systems such as Modern German and Dutch.
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Conference papers on the topic "Direct matrix inversion"

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Poondru, Shirdish, and Shaaban Abdallah. "Direct Matrix Inversion in Symbolic Form for Solutions of the Transport Equation." In 41st Aerospace Sciences Meeting and Exhibit. American Institute of Aeronautics and Astronautics, 2003. http://dx.doi.org/10.2514/6.2003-251.

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Sarraf, Elie H., Messaoud Ahmed-Ouameur, and Daniel Massicotte. "FPGA design and implementation of Direct Matrix Inversion based on steepest descent method." In 2007 Joint 50th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS) and the IEEE Northeast Workshop on Circuits and Systems (NEWCAS 2007). IEEE, 2007. http://dx.doi.org/10.1109/mwscas.2007.4488771.

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Wu*, Ru-Shan, Benfeng Wang, and Morten Jakobsen. "Green's function and T-matrix reconstruction using surface data for direct nonlinear inversion." In SEG Technical Program Expanded Abstracts 2015. Society of Exploration Geophysicists, 2015. http://dx.doi.org/10.1190/segam2015-5926527.1.

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Poondru, Shirdish, and Shaaban Abdallah. "Fine-Mesh Solutions for Incompressible Navier-Stokes Equations using the Direct Matrix Inversion Method." In 42nd AIAA Aerospace Sciences Meeting and Exhibit. American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-1106.

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Haixin Liu and Dan Jiao. "Layered H-matrix based direct matrix inversion of significantly reduced complexity for finite-element-based large-scale electromagnetic analysis." In 2010 IEEE International Symposium Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting. IEEE, 2010. http://dx.doi.org/10.1109/aps.2010.5561881.

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Fricke, J. Robert, and Mark A. Hayner. "Direct Global Stiffness Matrix Method for 3-D Truss Dynamics." In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0402.

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Abstract This paper deals with the acoustical design goal for a new approach in submarine architecture calling for the use of an internal truss to support the ship’s control and living spaces in the forward section. The acoustical design goal is to minimize truss vibration over a broad band of frequency through the application of passive damping treatments. Damping can be placed in three generic locations: 1) in or along the truss members, 2) in the joints between members, and 3) in dynamic absorbers placed at discrete locations along the truss members. This paper develops the framework for ev
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Zhao, Bing, and GuoBiao Yang. "A New Direct Strain Measurement Using Optical Grid Method." In ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/msec2014-3905.

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Normally the strain field is indirectly determined by differentiating the displacement fields. This indirect method always suffers from noise, and the shear strain accuracy is poor due to the rigid body rotation effect. In this paper, a direct strain measurement method based on affine transform matrix decomposition is introduced. A new method for strain matrix inversion without determining the rotation is proposed. This can be used for both local and global 2D/3D strain determination. A uniaxial tensile test with grid measurement technique is carried out to validate this method.
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Pan, Jinwen, Prateek Shah, and Roberto Horowitz. "DSP Implementation of a Direct Adaptive Feedforward Control Algorithm for Rejecting Repeatable Runout in Hard Disk Drives." In ASME 2016 Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/isps2016-9615.

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A direct adaptive feedforward control method for tracking repeatable runout (RRO) in bit patterned media recording (BPMR) hard disk drives (HDD) is proposed. The technique estimates the system parameters and the residual RRO simultaneously and constructs a feedforward signal based on a known regressor. An improved version of the proposed algorithm to avoid matrix inversion and reduce computation complexity is given. Results for both MATLAB simulation and digital signal processor (DSP) implementation are provided to verify the effectiveness of the proposed algorithm.
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Heinze, Torsten, Lars Panning-von Scheidt, Jörg Wallaschek, and Andreas Hartung. "A Taylor Series Expansion Approach for Nonlinear Blade Forced Response Prediction Considering Variable Rotational Speed." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-56375.

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In the field of turbomachinery, great efforts are made to enhance computational tools to obtain reliable predictions of the vibrational behavior of friction-damped bladed disks. As a trade-off between computational burden and level of simplification, numerous methods were developed to reduce the nonlinear systems dimension. Using component mode synthesis methods (CMS), one is capable to describe the systems motion by interface and modal coordinates. Subsequently or alternatively, the dynamic compliance matrix can be evaluated efficiently by means of modal superposition to avoid the inversion o
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You, Keping, and M. Rahman. "Modulations for Voltage Source Rectification and Voltage Source Inversion Based on General Direct Space Vector Modulation Approach of AC-AC Matrix Converter Theory." In 2006 IEEE International Symposium on Industrial Electronics. IEEE, 2006. http://dx.doi.org/10.1109/isie.2006.295762.

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