Results 201 to 210 of about 4,884,732 (252)
Plaid‐Like Spin Splitting and Chirality of Magnon Bands in Antiferromagnetic MnTe2
Advanced Science, EarlyView.Helicity‐ and angle‐resolved Raman spectroscopy reveals chiral magnons in the non‐coplanar antiferromagnet MnTe 2. Combined with first‐principles calculations and spin‐wave theory, the results establish its altermagnetic character through circular Raman dichroism, reduced rotational symmetry, and a distinctive plaid‐like momentum‐space magnon spin ...
Dirk Wulferding +10 more
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Depth of Investigation for Multi-parameters Inversions
Proceedings, 2015We have developed a new robust concept for the calculation of the depth of investigation (DOI) for inversion problems described by several intrinsic parameters, like the spectral inversion of time-domain induced polarization data or the inversion of full-decay Nuclear Magnetic Resonance soundings.
Fiandaca, G. +2 more
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Unconstrained Multi-Parameter AVO Inversion
67th EAGE Conference & Exhibition, 2005F015 Unconstrained Multi-parameter AVO Inversion Summary 1 PENGYUAN SUN YANPENG LI XIULI LU EAGE 67 th Conference & Exhibition — Madrid Spain 13 - 16 June 2005 BGP of CNPC Zhuozhou China The use of seismic data for estimation of lithology and reservoir properties is important in seismic exploration and reservoir characterization.
P. Sun, Y. Li, X. Lu
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Adaptive eigenspace for multi-parameter inverse scattering problems
Computers & Mathematics with Applications, 2019zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Marcus J. Grote, Uri Nahum
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Inverse multi-parameter eigenvalue problems for matrices
Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 1985SynopsisWe study the possibility of perturbing a matrix A by a diagonal matrix so that an eigenvalue problem with leading matrix A has specifiedeigenvalues when A is replaced by A+D. The particular cases presented are the one-parameter generalized eigenvalue problem (A× = λB μ×, a two-parameter eigenvalue problem (A + λB + μC)× = 0, a linked system ...
Browne, Patrick J., Sleeman, B. D.
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An inverse scattering framework for direct multi‐parameter geo‐radar inversion
SEG Technical Program Expanded Abstracts 2008, 2008We present an inverse scattering formulation of the reflection georadar inverse problem. Our aim is to begin to connect to geo-radar the same direct, multi-parameter, and multi-dimensional tools that underpin the migration-inversion and inverse scattering series methods of reflection seismology.
K. A. Innanen, P. S. Routh
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Land Seismic Data Multi-parameter Waveform Inversion
Proceedings, 2014Acoustic full waveform inversion of low-frequency, long-offset, and wide-azimuth data allows updating the long-to-intermediate wavelength components of the velocity model. For migration of reflection data, anisotropy needs to be accounted for in the inversion, since full waveform inversion mainly retrieves the horizontal velocity.
A. Stopin, R.E. Plessix
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Solution of multi-parameter inverse problems of heat conduction
Journal of Engineering Physics, 1991We develop methods and present results for the solution of inverse problems of heat conduction in connection with the simultaneous determination of thermophysical characteristics and heat exchange parameters.
Yu. M. Matsevityi, A. V. Multanovskii
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Multi-parameter Calibration Algorithm Based on 4D Seismic Inversion
2011 International Conference on Intelligence Science and Information Engineering, 2011In order to obtain more reliable gas reservoir information and implement monitoring gas reservoir dynamically, a correction algorithm based on 4D seismic inversion is put forward in this paper. The algorithm uses visualization technology to observe difference between base horizon data and monitor horizon seismic data while using a normalized technology
Kai Xie +5 more
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A Multi-parameter Full Waveform Inversion Strategy in Acoustic Media
Proceedings, 2014Full waveform inversion (FWI) is a challenging data-matching procedure that exploits the full information from the seismic data to obtain high-resolution models of the subsurface. To best fit the observed seismograms, the forward modeling should correctly account for the wave propagation phenomena present in the recorded data, especially for the wide ...
J.Z. Yang, Y.Z. Liu, L.G. Dong
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