Results 161 to 170 of about 67,956 (344)
Abstract Background Adolescence is marked by increased vulnerability to sleep disturbances and mood disorders. Understanding how day‐to‐day changes in sleep and mood are linked within the same individual is crucial for clarifying sleep's role in emerging internalizing disorders. However, the extent to which an adolescent's fluctuations in sleep predict
Konstantin Drexl +4 more
wiley +1 more source
Hoek–Brown mi estimation — a comparison of multistage triaxial with single stage triaxial testing [PDF]
Julian Venter +2 more
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Abstract Purpose This study aimed to examine the effects of lateral meniscus (LM) centralization on anterolateral rotational stability in patients with anterior cruciate ligament (ACL) and LM injuries. The hypothesis was that performing LM repair and centralization on knees with LM lesions would control anterolateral rotatory instability (ALRI ...
Ryota Seki +8 more
wiley +1 more source
Energy storage and dissipation characteristics of red sandstone in triaxial compression tests under constant confining pressure [PDF]
Liuliu Li, Fengqiang Gong
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Extended Kelvin–Voigt Model for Simulating Thermally Accelerated Creep in Fine‐Grained Soils
ABSTRACT The subsurface undergoes temperature variations in many situations due to anthropogenic and natural causes, which strongly influence the long‐term behavior of soils. These phenomena can involve temperature anomalies in the ground across distances of a few meters, as in the case of nuclear waste repositories, to distances encompassing entire ...
Giulia Capati +2 more
wiley +1 more source
Insights Into the Mechanisms Controlling the Residual Strength of Bio‐cemented Sands
ABSTRACT Microbially induced carbonate precipitation (MICP) is an emerging technique for enhancing the mechanical properties of granular soils. Although several experimental studies have reported increased shear strength in MICP‐treated soils at both peak and residual states, other findings have shown reductions in residual strength compared to ...
Aoxi Zhang +3 more
wiley +1 more source
A Peridynamic Framework for Modeling Progressive Failure in Porous Sandstone Indentation
ABSTRACT A state‐based peridynamic model is proposed to simulate the failure mechanisms in porous rocks, using Bentheim sandstone as a specific example. Experimental observations reveal a transition from brittle to ductile failure under increasing triaxial compression. This behavior is attributed to pore compaction. The peridynamic model is enhanced to
Sahir N. Butt +2 more
wiley +1 more source
Comparison of experimental and model‐predicted erosion rates for carbon fibre‐reinforced polymer (CFRP) and glass fibre‐reinforced polymer (GFRP) under low‐velocity (2 m/s) and at varying angles and sand concentrations (0.0, 0.05, 0.4 g/L). The results demonstrate good agreement between experimental data and model predictions across different erosive ...
Ali Al‐Darraji +4 more
wiley +1 more source
Mechanical Properties and Fracture Surface Morphology of Quartz Sandstone Under Triaxial Shear
To study the shear damage deformation characteristics of intact rock in rock slopes under three-dimensional compressive–shear stress conditions, 16 sets of triaxial shear tests were conducted on saturated intact fine-grained quartz sandstone with simple ...
Zhinan LIN +4 more
doaj
This document presents a brief explanation of the shear strength theory, an overview of the main types of triaxial tests that are performed more frequently in a geotechnical laboratory and a detailed listing of the different components that make up the triaxial test equipment acquired by the LanammeUCR Geotechnical Laboratory.
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