Search Results - "Oswald, Patrick"
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Comment on the Determination of the Polar Anchoring Energy by Capacitance Measurements in Nematic Liquid Crystals
Published in Applied sciences (01-08-2021)“…Capacitance measurements have been extensively used to measure the anchoring extrapolation length L at a nematic–substrate interface. These measurements are…”
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Dynamics of Dislocations in Smectic A Liquid Crystals Doped with Nanoparticles
Published in Crystals (Basel) (01-08-2019)“…Edge dislocations are linear defects that locally break the positional order of the layers in smectic A liquid crystals. As in usual solids, these defects play…”
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Seismic control of large prehistoric rockslides in the Eastern Alps
Published in Nature communications (16-02-2021)“…Large prehistoric rockslides tend to occur within spatio-temporal clusters suggesting a common trigger such as earthquake shaking or enhanced wet periods. Yet,…”
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Mapping Distinct Forest Types Improves Overall Forest Identification Based on Multi-Spectral Landsat Imagery for Myanmar’s Tanintharyi Region
Published in Remote sensing (Basel, Switzerland) (2016)“…We investigated the use of multi-spectral Landsat OLI imagery for delineating mangrove, lowland evergreen, upland evergreen and mixed deciduous forest types in…”
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5
Continuous Rotation of Achiral Nematic Liquid Crystal Droplets Driven by Heat Flux
Published in Physical review letters (29-07-2016)“…Suspended droplets of cholesteric (chiral nematic) liquid crystals spontaneously rotate in the presence of a heat flux due to a temperature gradient, a…”
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Measurement of the continuous Lehmann rotation of cholesteric droplets subjected to a temperature gradient
Published in Physical review letters (30-05-2008)“…In 1900, Otto Lehmann observed the continuous rotation of cholesteric drops when subjected to a temperature gradient. This thermomechanical phenomenon was…”
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Combined Landsat and L-Band SAR Data Improves Land Cover Classification and Change Detection in Dynamic Tropical Landscapes
Published in Remote sensing (Basel, Switzerland) (01-02-2018)“…Robust quantitative estimates of land use and land cover change are necessary to develop policy solutions and interventions aimed towards sustainable land…”
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Shaken and Stirred: A Comparative Study of Earthquake‐Triggered Soft‐Sediment Deformation Structures in Lake Sediments
Published in Geochemistry, geophysics, geosystems : G3 (01-06-2024)“…Subaqueous paleoseismic studies used soft sediment deformation structures (SSDS) to discern the shaking strength of past earthquakes, as the deformation degree…”
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Rapid forest clearing in a Myanmar proposed national park threatens two newly discovered species of geckos (Gekkonidae: Cyrtodactylus)
Published in PloS one (12-04-2017)“…Myanmar's recent transition from military rule towards a more democratic government has largely ended decades of political and economic isolation. Although…”
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TIC Reorientation under Electric and Magnetic Fields in Homeotropic Samples of Cholesteric LC with Negative Dielectric Anisotropy
Published in Crystals (Basel) (01-06-2023)“…In this paper, we numerically and experimentally show that the director field orientation degeneracy within the Translationally Invariant Configuration (TIC)…”
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A 4000-year debris flow record based on amphibious investigations of fan delta activity in Plansee (Austria, Eastern Alps)
Published in Earth surface dynamics (29-11-2021)“…The frequency of debris flows is hypothesized to have increased in recent decades with enhanced rainstorm activity. Geological evidence to test the…”
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Combined On-Fault and Off-Fault Paleoseismic Evidence in the Postglacial Infill of the Inner-Alpine Lake Achensee (Austria, Eastern Alps)
Published in Frontiers in earth science (Lausanne) (07-06-2021)“…The Eastern European Alps are characterized by slow active deformation with low- to moderate seismicity. Recurrence rates of severe earthquakes exceed the time…”
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Lehmann rotation of cholesteric droplets: Role of the sample thickness and of the concentration of chiral molecules
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (16-03-2015)“…We study the role of the sample thickness d and of the concentration C of chiral molecules during the Lehmann rotation of cholesteric droplets of radius R…”
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14
Backflow-induced asymmetric collapse of disclination lines in liquid crystals
Published in Physical review letters (08-07-2005)“…We present experiments where opposed pairs of planar parallel disclination lines of topological strength s=+/-1 move due to their mutual attraction. Our…”
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Lehmann rotation of the cholesteric helix in droplets oriented by an electric field
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (21-02-2014)“…We study the Lehmann rotation of the cholesteric helix in droplets of the liquid crystal N-(p-methoxybenzilidene)-p-butylaniline doped with a small amount of…”
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Measurements of the dielectric and viscoelastic constants in mixtures of 4,4'-n-octyl-cyanobiphenyl and biphenyl
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (01-03-2014)“…We performed measurements of the dielectric constants, splay elastic constant, and rotational viscosity of the nematic phase of mixtures of…”
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Sliding planar anchoring and viscous surface torque in a cholesteric liquid crystal
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (01-06-2008)“…We propose a surface treatment allowing one to obtain a sliding planar anchoring of nematic (or cholesteric) liquid crystals. It consists of depositing a thin…”
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18
Magnitude and source area estimations of severe prehistoric earthquakes in the western Austrian Alps
Published in Natural hazards and earth system sciences (21-06-2022)“…In slowly deforming intraplate tectonic regions such as the Alps only limited knowledge exists on the occurrence of severe earthquakes, their maximum possible…”
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Deformation around a detached half-graben shoulder during nappe stacking (Northern Calcareous Alps, Austria)
Published in Swiss Journal of geosciences (01-03-2019)“…This study describes the inversion of a rift-related graben shoulder during emplacement and transport of a major thrust sheet in the external part of the…”
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A comprehensive chemical kinetic combustion model for the four butanol isomers
Published in Combustion and flame (01-06-2012)“…Alcohols, such as butanol, are a class of molecules that have been proposed as a bio-derived alternative or blending agent for conventional petroleum derived…”
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