Results 31 to 40 of about 203,697 (195)

Effect of loading rate change on the mechanical properties of mudstone under uniaxial compression

open access: yesRock and Soil Mechanics, 2021
To study the effect of the loading rate change on the deformation and strength properties and creep behavior of mudstone, a series of uniaxial compression tests and graded loading creep tests was conducted on mudstone specimens at four loading rates (0 ...
LI Fu-lin   +4 more
doaj   +1 more source

Devonian Sandstone Lithostratigraphy, Northern Arkansas [PDF]

open access: yes, 1977
Two areas of Devonian sandstone development may be recognized in northern Arkansas. In northwestern Arkansas, the Clifty Formation comprises a massively bedded, super mature quartz arenite of Middle Devonian age overlain by thinner bedded, phosphatic ...
Hall, Jeffery D., Manger, Walter L.
core   +2 more sources

Dominant performance parameter and technical limits of surfactants for oil displacement

open access: yesEnergy Geoscience
In chemical flooding, emulsification and interfacial tension (IFT) reduction are crucial for enhanced oil recovery (EOR). However, the dominant performance parameter and technical limits of surfactants for oil displacement remain underexplored.
Yabing Guo   +3 more
doaj   +1 more source

Rehabilitation of silicosis victims of district Karauli, Rajasthan, India

open access: yesIndian Journal of Community Medicine, 2019
Background: This study was carried out to assess the reach of medico-social and economic programs to the silicosis victims in Karauli. The district is infamous for large-scale unregulated sandstone mining, a pulmonary hazard, causing silicosis, a ...
Shamim Mohammad
doaj   +1 more source

A hybrid physics-informed machine learning framework for water cut prediction in waterflooding reservoirs

open access: yesResults in Engineering
The variation of water cut plays a crucial role in optimizing waterflooding development strategies and delaying production decline. This study proposes a novel approach that combines machine learning with a general water cut prediction model to improve ...
Jian Gai   +7 more
doaj   +1 more source

The Carboniferous Southern Pennine Basin, UK [PDF]

open access: yes, 2014
Many of the Carboniferous outcrops located in the Derbyshire region of the Peak District National Park, UK, have provided sites for both significant and pioneering research relating to the clastic sedimentology of marine palaeoenvironments, particularly ...
Mountney, NP, Pringle, JK, Southern, SJ
core   +4 more sources

Residual Mechanical Properties of Sandstone After Fire

open access: yesBuildings
The impact of fire on natural stone structures is a critical concern, particularly for historical buildings. This study examines the residual mechanical properties of sandstone after exposure to high temperatures.
Ema Jankovičová   +2 more
doaj   +1 more source

Lunzské vrstvy hronika východnej časti Strážovských vrchov [PDF]

open access: yesGeologické práce. Správy, 2020
The presented work summarizes knowledge on the Lunz Beds in the Hronic Považie and Ostrá Malenica nappes of the eastern portion of the Strážovské vrchy Mts.
Ondrej Pelech   +5 more
doaj  

Temporal characterization of rock dynamic destruction [PDF]

open access: yes, 2019
Dynamic strength tests published in literature have been analysed by structuraltemporal damage criteria. Parameter τ - incubation time - describing material stability behaviour under high-rate influences have been estimated for Kimachi sandstone, Inada ...
Martemyanov, A. N., Petrov, Yu V.
core  

Study of Dynamic Modulus of Asphalt Mix after Reinforcement of Sandstone

open access: yesCivilEng
Sandstone has poor mechanical properties. To facilitate the application of sandstone into asphalt mixtures, sandstone was treated by immersion in sodium silicate solution, and the dynamic modulus after reinforcement was used as a criterion.
Bowen Zhang   +4 more
doaj   +1 more source

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