Results 1 to 10 of about 354,616 (169)
Matrix gas flow through “impermeable” rocks – shales and tight sandstone [PDF]
Solid Earth, 2022 The effective pressure sensitivity of gas flow through two shales (Bowland and Haynesville shales) and a tight gas sandstone (Pennant sandstone) was measured over the typical range of reservoir pressure conditions.
E. Rutter +3 more
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A Discrete Model of Rock-Soil Medium Response in the Determination of Horizontal Strain Values
Applied Sciences, 2021 This paper presents a method for determining the standard deviation and variation coefficient for both the predicted and measured values of horizontal strain that were caused by underground mining operations. The solution was based on a discrete model of
Anton Sroka +6 more
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Surface quality and dry sliding wear behavior of AZ61Mg alloy using Abbott firestone technique
Scientific Reports, 2023 Currently, magnesium alloys are widely utilized in diverse sectors due to their unique properties. However, the AZ61Mg alloy, a commonly used magnesium alloy, is known to have poor wear resistance, which limits its applications.
Eman H. El-Shenawy, Ahmed I. Z. Farahat
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The Mohr–Coulomb criterion for intact rock strength and friction – a re-evaluation and consideration of failure under polyaxial stresses [PDF]
Solid Earth, 2016 Darley Dale and Pennant sandstones were tested under conditions of both axisymmetric shortening and extension normal to bedding. These are the two extremes of loading under polyaxial stress conditions.
A. Hackston, E. Rutter
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Application of Electron Backscatter Diffraction to Calcite-Twinning Paleopiezometry
Geosciences, 2022 Electron backscatter diffraction (EBSD) was used to determine the orientation of mechanically twinned grains in Carrara marble experimentally deformed to a small strain (≤4%) at room temperature and at a moderate confining pressure (225 MPa).
Ernest Rutter +2 more
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q-Deformed and c-Deformed Harmonic Oscillators [PDF]
Progress of Theoretical Physics, 2003 Summary: Hamilton functions of classical deformed oscillators (\(c\)-deformed oscillators) are derived from Hamiltonians of \(q\)-deformed oscillators of the Macfarlane and Dubna types. A new scale parameter, \(l_q\), with the dimension of length, is introduced to relate a dimensionless parameter characterizing the deformation with the natural length ...
Sogami, Ikuo S. +2 more
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Fault rock heterogeneity can produce fault weakness and reduce fault stability
Nature Communications, 2022 This paper shows that faults comprised of heterogeneously distributed materials, as is typical for tectonic faults in nature, are weaker and more unstable than equivalent faults where the materials are homogeneously mixed together.
John D. Bedford +2 more
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Room temperature deformation mechanisms of a Fe–Mn–Al–C steel
Journal of Materials Research and Technology, 2023 This study aims to investigate the deformation mechanisms of an austenite-based duplex Fe–Mn–Al–C steel at room-temperature through uniaxial tensile tests, strain rate sensitivity and stress relaxation analysis.
A. Moshiri +5 more
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Classifying deformable and non-deformable video objects [PDF]
7th International Conference on Imaging for Crime Detection and Prevention (ICDP 2016), 2016 This paper presents a fully automated approach to classifying deformable and non-deformable moving objects in a video surveillance scene. We estimate an object's motion using Marzat optical-flow algorithm. We filter the motion vectors and attempt to find the transformation that represents the correct mapping between the two positions.
Wael F. Youssef +2 more
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Earth, Planets and Space, 2021 Long-term deformation of Kusatsu-Shirane and Asama volcanoes in central Japan were investigated using Global Navigation Satellite System (GNSS) measurements.
Hiroshi Munekane
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