Search Results - "Lelièvre, G."

Magnetic surface geometry inversion of Kimberlites in Botswana by Vatankhah, Saeed, Lelièvre, Peter G., Matende, Kitso, Mickus, Kevin

“…Surface geometry inversion of geophysical data has recently been introduced as an effective approach for generating surface‐based geological models. The models…”
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Facet type determination based on combined atomic force microscopy and electron backscatter diffraction by Brüning, Ralf, Hajati, Mehrad, Lelièvre, Peter G., Bernhard, Tobias, Dieter, Sascha, Dietrich, Grégoire

“…The distribution of facet types affects the functionality of the surfaces of polycrystalline films. However, we are not aware of a previously published…”
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High-resolution imaging of subsurface infrastructure using deep learning artificial intelligence on drone magnetometry by Mukherjee, Souvik, Bell, Ronald S, Barkhouse, William N, Adavani, Santi, Lelièvre, Peter G, Farquharson, Colin G

“…The use of drones for geophysical data acquisition and artificial intelligence (AI) for geophysical data processing, imaging, and interpretation are active…”
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Research Note: A proposed procedure for ameliorating edge effects in magnetic data transformations by Lelièvre, Peter G., Fournier, Dominique, Walker, Sean E., Williams, Nicholas C., Farquharson, Colin G.

“…ABSTRACT Reduction to pole and other transformations of total field magnetic intensity data are often challenging to perform at low magnetic latitudes, when…”
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Magnetic imaging of subseafloor hydrothermal fluid circulation pathways by Galley, Christopher G, Jamieson, John W, Lelièvre, Peter G, Farquharson, Colin G, Parianos, John M

“…Hydrothermal fluid circulation beneath the seafloor is an important process for chemical and heat transfer between the solid Earth and overlying oceans…”
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A comprehensive study of including structural orientation information in geophysical inversions by Lelièvre, Peter G., Oldenburg, Douglas W.

“…In this paper, we investigate options for incorporating structural orientation information into under-determined inversions in a deterministic framework (i.e…”
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Joint inversion methods with relative density offset correction for muon tomography and gravity data, with application to volcano imaging by Lelièvre, Peter G, Barnoud, Anne, Niess, Valentin, Cârloganu, Cristina, Cayol, Valérie, Farquharson, Colin G

“…SUMMARY Muography is a relatively new geophysical imaging method that uses muons to provide estimates of average densities along particular lines of sight…”
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Robust Bayesian Joint Inversion of Gravimetric and Muographic Data for the Density Imaging of the Puy de Dôme Volcano (France) by Barnoud, Anne, Cayol, Valérie, Lelièvre, Peter G., Portal, Angélie, Labazuy, Philippe, Boivin, Pierre, Gailler, Lydie

“…Imaging the internal structure of volcanoes helps highlighting magma pathways and monitoring potential structural weaknesses. We jointly invert gravimetric and…”
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Computing first‐arrival seismic traveltimes on unstructured 3‐D tetrahedral grids using the Fast Marching Method by Lelièvre, Peter G., Farquharson, Colin G., Hurich, Charles A.

“…SUMMARY The Fast Marching Method is an efficient numerical algorithm for propagating interfaces such as first‐arrival seismic wave fronts travelling through a…”
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FacetModeller: Software for manual creation, manipulation and analysis of 3D surface-based models by Lelièvre, Peter G., Carter-McAuslan, Angela E., Dunham, Michael W., Jones, Drew J., Nalepa, Mariella, Squires, Chelsea L., Tycholiz, Cassandra J., Vallée, Marc A., Farquharson, Colin G.

“…The creation of 3D models is commonplace in many disciplines. Models are often built from a collection of tessellated surfaces. To apply numerical methods to…”
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Biochemical evidence for ATPase activity in CFTR-enriched apical membrane vesicles from tracheal epithelium by Villette, Hélène, Lelièvre, Lionel G

“…In apical membrane vesicles from beef tracheal epithelia expressing up to 30% of the proteins as functional cystic fibrosis transmembrane conductance regulator…”
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Gradient and smoothness regularization operators for geophysical inversion on unstructured meshes by Lelièvre, Peter G., Farquharson, Colin G.

“…The non-uniqueness of the underdetermined inverse problem requires that any available geological information be incorporated to constrain the results. Such…”
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Preparation of chiral stationary phases by grafting β-CD derivatives on polyvinylimidazole coated silica by THUAUD, N, LELIEVRE, G, DERATANI, A, SEBILLE, B

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Renal thrombotic microangiopathy in systemic lupus erythematosus : clinical correlations and long-term renal survival by BRIDOUX, F, VRTOVSNIK, F, NOËL, C, SAUNIER, P, MOUGENOT, B, LEMAITRE, V, DRACON, M, LELIEVRE, G, VANHILLE, P

“…Renal thrombotic microangiopathy (TMA) is an uncommon vascular complication of systemic lupus erythematosus (SLE). Its clinical symptoms and impact on renal…”
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Integrated Imaging for Mineral Exploration by Lelièvre, Peter G, Farquharson, Colin G

“…Many joint and cooperative inversion approaches have been applied to mineral exploration problems with varying levels of success but typically performing…”
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Physical-property-, lithology- and surface-geometry-based joint inversion using Pareto Multi-Objective Global Optimization by Bijani, Rodrigo, Lelièvre, Peter G., Ponte-Neto, Cosme F., Farquharson, Colin G.

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JMorph: Software for performing rapid morphometric measurements on digital images of fossil assemblages by Lelièvre, Peter G., Grey, Melissa

“…Quantitative morphometric analyses of form are widely used in palaeontology, especially for taxonomic and evolutionary research. These analyses can involve…”
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Lung granulomatous pneumocystosis after kidney transplantation: An uncommon complication by Hazzan, M., Copin, M.C., Pruvot, F.R., Codaccioni, M.X., Dracon, M., Lelièvre, G., Noël, C.

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Geophysical and geological investigation of the spatial and subsurface extent of the Segwagwa and Masoke igneous ring complexes in southeast Botswana: Geotectonic implications by Matende, Kitso N., Ranganai, Rubeni T., Mickus, Kevin L., Lelièvre, Peter G., Mapeo, Read B.M., Ramotoroko, Calistus D.

“…The Segwagwa-Masoke Igneous Ring Complex (SMIRC) occurs within the Kanye Basin and is part of a suite of elliptical igneous complexes in SE Botswana. We used…”
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Magnetic forward modelling and inversion for high susceptibility by Lelièvre, Peter G., Oldenburg, Douglas W.

“…We develop an algorithm to invert geophysical magnetic data to recover 3-D distributions of subsurface magnetic susceptibility when the bodies have complicated…”
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