Search Results - "Müller‐Petke, Mike"

Feasibility study on prepolarized surface nuclear magnetic resonance for soil moisture measurements by Hiller, Thomas, Costabel, Stephan, Radić, Tino, Dlugosch, Raphael, Müller‐Petke, Mike

“…In the past few years, small‐scale (2 m) prepolarized surface nuclear magnetic resonance (SNMR) has gained increasing interest in the research community. As…”
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Detecting unfrozen sediments below thermokarst lakes with surface nuclear magnetic resonance by Parsekian, Andrew D., Grosse, Guido, Walbrecker, Jan O., Müller-Petke, Mike, Keating, Kristina, Liu, Lin, Jones, Benjamin M., Knight, Rosemary

“…A talik is a layer or body of unfrozen ground that occurs in permafrost due to an anomaly in thermal, hydrological, or hydrochemical conditions. Information…”
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First evidence of detecting surface nuclear magnetic resonance signals using a compact B-field sensor by Davis, Aaron C., Dlugosch, Raphael, Queitsch, Matthias, Macnae, James C., Stolz, Ronny, Müller-Petke, Mike

“…The noninvasive detection and characterization of subsurface aquifer structures demands geophysical techniques. Surface nuclear magnetic resonance (SNMR) is…”
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Successful Sampling Strategy Advances Laboratory Studies of NMR Logging in Unconsolidated Aquifers by Behroozmand, Ahmad A., Knight, Rosemary, Müller‐Petke, Mike, Auken, Esben, Barfod, Adrian A. S., Ferré, Ty P. A., Vilhelmsen, Troels N., Johnson, Carole D., Christiansen, Anders V.

“…The nuclear magnetic resonance (NMR) technique has become popular in groundwater studies because it responds directly to the presence and mobility of water in…”
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Comment on “Complex Inversion of MRT Signals under Different Loop Configurations for Groundwater Exploration” by Bin Chen, Xiangyun Hu, Jianhui Li, Yajun Liu, 2016, v. 55, no. 2: 171‐182 by Müller‐Petke, Mike, Jiang, Chuandong, Günther, Thomas, Dlugosch, Raphael

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Joint parameter estimation from magnetic resonance and vertical electric soundings using a multi-objective genetic algorithm by Akca, İrfan, Günther, Thomas, Müller-Petke, Mike, Başokur, Ahmet T., Yaramanci, Ugur

“…ABSTRACT Magnetic resonance sounding (MRS) has increasingly become an important method in hydrogeophysics because it allows for estimations of essential…”
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First Measurements of Surface Nuclear Magnetic Resonance Signals Without an Oscillating Excitation Pulse – Exploiting Non‐Adiabatic Prepolarization Switch‐Off by Hiller, Thomas, Costabel, Stephan, Dlugosch, Raphael, Müller‐Petke, Mike

“…Recently, small‐scale surface nuclear magnetic resonance (SNMR) measurements with a footprint of about a few square meters have gained interest in the soil…”
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Hydraulic characterisation of iron-oxide-coated sand and gravel based on nuclear magnetic resonance relaxation mode analyses by Costabel, Stephan, Weidner, Christoph, Muller-Petke, Mike, Houben, Georg

“…The capability of nuclear magnetic resonance (NMR) relaxometry to characterise hydraulic properties of iron-oxide-coated sand and gravel was evaluated in a…”
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Despiking of magnetic resonance signals in time and wavelet domains by Costabel, Stephan, Müller‐Petke, Mike

“…ABSTRACT In this paper three different despiking methods for surface‐NMR data are investigated and compared. Two of these are applied in the time domain: a…”
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Advanced surface coil layout with intrinsic noise cancellation properties for surface-NMR applications by Hiller, Thomas, Costabel, Stephan, Dlugosch, Raphael, Splith, Tobias, Müller-Petke, Mike

“…A recent study demonstrated that in small-scale prepolarized surface nuclear magnetic resonance (SNMR-PP) measurements with a footprint of a few square meters,…”
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Two‐dimensional distribution of relaxation time and water content from surface nuclear magnetic resonance by Dlugosch, Raphael, Günther, Thomas, Müller‐Petke, Mike, Yaramanci, Ugur

“…ABSTRACT Development in instrumentation and data analysis of surface nuclear magnetic resonance has recently moved on from one‐dimensional (1D) soundings to…”
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Resolution studies for Magnetic Resonance Sounding (MRS) using the singular value decomposition by Müller-Petke, Mike, Yaramanci, Ugur

“…We present a new approach to analyse the subsurface water content distribution obtained by inversion of MRS data in terms of resolution and penetration depth…”
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A State-Of-The-Art Perspective on the Characterization of Subterranean Estuaries at the Regional Scale by Moosdorf, Nils, Böttcher, Michael Ernst, Adyasari, Dini, Erkul, Ercan, Gilfedder, Benjamin S., Greskowiak, Janek, Jenner, Anna-Kathrina, Kotwicki, Lech, Massmann, Gudrun, Müller-Petke, Mike, Oehler, Till, Post, Vincent, Prien, Ralf, Scholten, Jan, Siemon, Bernhard, Ehlert von Ahn, Cátia Milene, Walther, Marc, Waska, Hannelore, Wunderlich, Tina, Mallast, Ulf

“…Subterranean estuaries the, subsurface mixing zones of terrestrial groundwater and seawater, substantially influence solute fluxes to the oceans. Solutes…”
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Reliability and limitations of surface NMR assessed by comparison to borehole NMR by Müller‐Petke, Mike, Hiller, Thomas, Herrmann, Rolf, Yaramanci, Ugur

“…ABSTRACT The measurements of nuclear magnetic resonance (NMR) parameters to investigate petrophysical properties related to fluid (e.g., water) storage and…”
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Improvements in Inversion of Magnetic Resonance Exploration -Water Content, Decay Time, and Resistivity by Yaramanci, Ugur, Müller-Petke, Mike

“…In this review article, we present recent developments and improvements in magnetic resonance sounding （MRS）, a newly established geophysical exploration…”
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Non-remote reference noise cancellation - using reference data in the presence of surface-NMR signals by Müller-Petke, Mike

“…Surface-NMR measurements commonly suffer from low signal-to-noise ratios. In recent years, with the introduction of multi-channel surface-NMR instruments, the…”
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Utilizing pre-polarization to enhance SNMR signals—effect of imperfect switch-off by Hiller, Thomas, Dlugosch, Raphael, Müller-Petke, Mike

“…SUMMARY Surface nuclear magnetic resonance (SNMR) is a well-established technique for the hydrogeological characterization of the subsurface up to depths of…”
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Random Noise Suppression of Magnetic Resonance Sounding Oscillating Signal by Combining Empirical Mode Decomposition and Time-Frequency Peak Filtering by Lin, Tingting, Zhang, Yang, Muller-Petke, Mike

“…Magnetic resonance sounding (MRS) signals are always corrupted by random noise. Although time-frequency peak filtering (TFPF) has been proven to be an…”
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Salinity distribution in the subterranean estuary of a meso-tidal high-energy beach characterized by Electrical Resistivity Tomography and direct push technology by Grünenbaum, Nele, Günther, Thomas, Greskowiak, Janek, Vienken, Thomas, Müller-Petke, Mike, Massmann, Gudrun

“…Understanding the interaction of terrestrial freshwater and seawater in the subterranean estuary (STE) is an important factor when considering nutrient fluxes…”
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A homotopy continuation inversion of geoelectrical sounding data by Ghanati, Reza, Müller-Petke, Mike

“…In nonlinear inversion of geophysical data, improper initial approximation of the model parameters usually leads to local convergence of the normal Newton…”
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