Results 121 to 130 of about 1,259,198 (268)

PERMEABILITY ANISOTROPY OF SHIRAHAMA SANDSTONE UNDER TRUE TRIAXIAL STRESSES

Doboku Gakkai Ronbunshu, 2002
Anisotropic stresses may induce anisotropic permeability of rocks. The present study aims at establishing the relation between permeability tensor and principal stresses for Shirahama sandstone within the pre-yield range. The effects of three principal stresses on the permeability are experimentally investigated using a Mogi-type true triaxial ...
Xiaochun LI, Zhishen WU, Manabu TAKAHASHI, Kazuya YASUHARA   +3 more
openaire   +2 more sources

Phase space transport in cuspy triaxial potentials: Can they be used to construct self-consistent equilibria?

, 2000
(Abridged) This paper studies chaotic orbit ensembles evolved in triaxial generalisations of the Dehnen potential which have been proposed to model ellipticals with a strong density cusp that manifest significant deviations from axisymmetry. Allowance is
Arnold, Athanassoula, Bender, Binney, Byun, Chandrasekhar, Christos Siopis, Contopoulos, De Zeeuw, Dehnen, Gebhardt, Grassberger, Griner, Habib, Habib, Habib, Henry E. Kandrup, Häfner, Ipser, Kandrup, Kandrup, Kandrup, Kandrup, Kandrup, Kandrup, Kandrup, Kaufmann, Kormendy, Kormendy, Kormendy, Lauer, Lichtenberg, Lieberman, Lindenberg, Louis, Lynden-Bell, MacKay, Mahon, Mendes de Oliveira, Merritt, Merritt, Merritt, Merritt, Merritt, Moller, Perez, Pogorelov, Rechester, Schwarzschild, Schwarzschild, Sridhar, Udry, Vandervoort, Zepf, Zhao   +54 more
core   +3 more sources

Determining Magnetic Field Intensity and Direction From the Anisotropy of Magnetic Remanence in Sediments

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract Anisotropy of magnetic remanence (AMR) holds promise for quantifying relative paleointensity values from sedimentary rocks. A proof of concept was established for applied fields that exceeded the intensity of the geomagnetic field. Under Earth‐like fields, large uncertainties necessitate the development of a new approach to improve the ...
Felix K. Ostermeier, Stuart A. Gilder, Michael R. Wack, Josef Ježek, Kuang He, David Finn   +5 more
wiley   +1 more source

Effects of Oscillating Pore Pressure of Fluid Injection on Fault Slip Described by Rate and State Friction

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Injection of pore fluid can substantially affect fault slip, often resulting in seismic activity. We simulate the axisymmetric compression experiments of Noël, Passelégue, et al. (2019), https://doi.org/10.1029/2019jb018517 on a saw‐cut specimen of Fontainebleau sandstone subjected to periodic oscillations of fluid pore pressure.
Micaela Mercuri, John W. Rudnicki
wiley   +1 more source

Testing the Accuracy of Paleointensity Estimates Using Experimental Pottery Assemblages

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Paleointensity estimates from archaeological pottery represent a key source of information on Holocene variations in geomagnetic field intensity. Yet, pottery rarely exhibits ideal single‐domain behavior that fully satisfies the theoretical assumptions underlying absolute paleointensity methods.
Lior Bar‐Sovik, Ron Shaar, Agnès Genevey, Yves Gallet, Yoav Vaknin, Yuval Goren   +5 more
wiley   +1 more source

Intermediate Principal Stress Effects on the 3D Cracking Behavior of Flawed Rocks Under True Triaxial Compression

Rock Mechanics and Rock Engineering
Crack initiation, growth, and coalescence in flawed rocks have been extensively studied for 2D (planar, penetrating) flaws under uniaxial/biaxial compression.
Yuan Sun, F. Fei, Louis Ngai Yuen Wong, J. Choo   +3 more
semanticscholar   +1 more source

Integrating Eye Tracking and Inertial Sensing for Enhanced Freezing of Gait Detection in Parkinson's Disease

European Journal of Neuroscience, Volume 63, Issue 7, April 2026.
Wearable systems using inertial sensors can misclassify voluntary standing as freezing of gait (right). Adding eye‐gaze kinematics to a deep learning model reduces this error (left): standing misclassified as freezing decreases from 59.1% to 13.6%, standing recall more than doubles from 36.4% to 81.8%, and macro‐averaged F1 improves significantly from ...
Christopher L. Pulliam, Jinxin Chen, James Y. Liao   +2 more
wiley   +1 more source

Progressive damage and fracture behavior of brittle rock under multi-axial prestress constraint and cyclic impact load coupling

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
To explore the progressive damage and fracture mechanics characteristics of brittle rock materials under combined dynamic-static loading. Taking account of the coupling effect of the constraint states of uniaxial stress (σ 1 ≥ σ 2 = σ 3 = 0), biaxial ...
Jinrui Zhang, Yi Luo, Junhong Huang, Hangli Gong, Jianping Wang   +4 more
doaj   +1 more source

Dilation and energy evolution mechanisms of sandstone under true-triaxial mining unloading conditions

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
The study of sandstone dilation characteristics under actual mining and excavation conditions promotes the safe and efficient development of underground engineering.
Wenpu Li, Ze-yuan Wang, Guorui Feng, Huan Zhang, Jiahui Du, Hao Li, Minke Duan   +6 more
semanticscholar   +1 more source

Fast Determination of Soil Behavior in the Capillary Zone Using Simple Laboratory Tests [PDF]

, 2012
INE/AUTC 13 ...
Li, Lin, Lytton, Robert L., Xhang, Xiong
core