Results 21 to 30 of about 996,706 (291)

Development of Transversely Isotropic Elastoplastic Constitutive Model in FLAC3D and Its Application in Tunnel Engineering

open access: yesGeofluids, 2022
The obvious anisotropy of layered rock mass prevents the built-in constitutive model of commercial simulation software from accurately describing the elastoplastic behavior of the rock mass.
Haoran Li   +5 more
doaj   +1 more source

Air Convection in the Active Layer of Rock Glaciers [PDF]

open access: yesFrontiers in Earth Science, 2020
Coarse blocks are an abundant surface cover in mountainous permafrost landscapes. In this coarse blocky layer, air convection occurs and has a significant influence on the ground thermal regime of the underlying permafrost. Besides heat transfer through conduction, free convection of air takes place seasonally and leads to a pronounced ground cooling ...
Wicky, Jonas, Hauck, Christian
openaire   +3 more sources

The effect of drainage on the capillary retention of CO2 in a layered permeable rock [PDF]

open access: yes, 2008
Buoyant plumes of CO2 spreading through water-saturated permeable rock, bounded by layers of lower permeability, tend to spread laterally. As they advance, they may gradually leak through fractures or discontinuities in the lower permeability boundary ...
Woods, A. W.   +3 more
core   +1 more source

Stability Analysis on the Steeply-Inclined Small-Angle Layered Surrounding Rock Masses at the Upstream High Sidewall of a Large-Span Cavern

open access: yesFrontiers in Earth Science, 2022
The underground powerhouse of China’s Wudongde hydropower station is one of the world’s underground powerhouses with the largest span and height. Because the underground powerhouse is all located in steeply-inclined layered rock masses, and the bedding ...
Chong-Lin Jian   +7 more
doaj   +1 more source

Buoyancy-driven dispersion in a layered porous rock [PDF]

open access: yesJournal of Fluid Mechanics, 2015
AbstractWe investigate the longitudinal dispersion of a passive tracer by a gravity-driven flow in a porous medium consisting of a series of independent horizontal layers connected to a constant pressure source. We show that in a formation of given vertical extent, the total flux is only weakly dependent on the number of layers, and is very similar to ...
Farcas, Adrian, Woods, Andrew W
openaire   +2 more sources

Mechanical Damage Test and Model Study of Layered Composite Rock Based on Acoustic Emission and DIC Characteristics

open access: yesShock and Vibration, 2022
To study the mechanical damage characteristics of layered composite rocks, sandstones, and mudstones of deep tight reservoirs were used as the research objects, and layered composite class rocks were prepared by similar material model tests.
Xianyin Qi   +3 more
doaj   +1 more source

The Blasting Vibration Characteristics of Layered Rock Mass under High-Pressure Gas Impact

open access: yesEnergies, 2023
Firstly, the experimental test of blasting vibration was carried out to study the propagation characteristics of the peak particle velocity (PPV) and dominant frequency (DF) of the blasting vibration of layered rock mass under high-pressure gas impact ...
Haixia Wei   +4 more
doaj   +1 more source

Lateral damage mechanism of the double-track tunnel in the mountainous layered soft rock and NPR anchor cable control

open access: yesUnderground Space, 2023
Due to complex geological formations, lateral damage often occurs during excavation in mountainous layered soft rock double-track tunnels. This paper discusses the stresses and the damage characteristics of the surrounding rock under overload in a ...
Qiru Sui   +6 more
doaj   +1 more source

Bedding Plane Effects on Mechanical Behavior of Surrounding Rock in Mountain Tunneling

open access: yesShock and Vibration, 2021
The layered rock showed the characteristics in Mountain tunnel, Yunnan. A series of uniaxial compression tests and variable angle shear tests were carried out, and the aim was to investigate the effect of the bedding on its mechanical parameters and ...
Shuang You, Jincui Sun, Hongtao Wang
doaj   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

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