Results 11 to 20 of about 394,652 (294)

Mineralogy, microstructures and geomechanics of rock salt for underground gas storage

open access: yesDeep Underground Science and Engineering, 2023
Rock salt has excellent properties for its use as underground leak‐proof containers for the storage of renewable energy. Salt solution mining has long been used for salt mining, and can now be employed in the construction of underground salt caverns for ...
Veerle Vandeginste   +3 more
doaj   +2 more sources

Investigation of rock salt layer creep and its effects on casing collapse

open access: yesInternational Journal of Mining Science and Technology, 2020
Casing collapse is one of the costly incidents in the oil industry. In the oil fields of southwest Iran, most casing collapses have occurred in Gachsaran formation, and the halite rock salt layer in this formation may be the main cause for these ...
S. Reza Taheri   +4 more
doaj   +3 more sources

Fatigue properties and damage constitutive model of salt rock based on CT scanning

open access: yesInternational Journal of Mining Science and Technology
To investigate the macroscopic fatigue properties and the mesoscopic pore evolution characteristics of salt rock under cyclic loading, fatigue tests under different upper-limit stresses were carried out on salt rock, and the mesoscopic pore structures of
Junbao Wang   +5 more
doaj   +3 more sources

A prehistoric Native American pictograph that signals the summer solstice [PDF]

open access: yesArchaeoastronomy and Ancient Technologies, 2021
The current article examines a 90 cm. tall, prehistoric Native American pictograph painted in red ochre which depicts a red Anthropomorph wearing a “V”-shaped headdress.
McHugh John, Lundwall John, Howells Tom
doaj   +1 more source

Efficient and Controllable Synthesis of 1-Aminoanthraquinone via High-Temperature Ammonolysis Using Continuous-Flow Method

open access: yesMolecules, 2023
Anthraquinone dyes are the second most important type of dyes after azo dyes. In particular, 1-aminoanthraquinone has been extensively utilized in the preparation of diverse anthraquinone dyes. This study employed a continuous-flow method to synthesize 1-
Feng Zhou   +8 more
doaj   +1 more source

Experimental Determination of Polycrystalline Salt Rock Thermal Conductivity, Diffusivity and Specific Heat From 20 to 240°C

open access: yesFrontiers in Earth Science, 2022
Salt rock is recognized as one of the most suitable parent rocks for geological disposal of high level radioactive waste due to its low permeability, good ductility, good thermal conductivity and damage self-healing properties.
Yiwei Ren   +8 more
doaj   +1 more source

Experimental study of the self-healing property of damaged salt rock by Brazilian splitting

open access: yes工程科学学报, 2020
Given its good physical and mechanical properties and chemical stability, salt rock is considered to be the ideal rock mass for underground reservoir construction.
De-yi JIANG   +5 more
doaj   +1 more source

First-principles calculations of a high-pressure synthesized compound PtC [PDF]

open access: yes, 2005
First-principles density-functional method is used to study the recently high-pressure synthesized compound PtC. It is confirmed by our calculations that the platinum carbide has a zinc-blende ground-state phase at zero pressure and the rock-salt ...
Jin, C. Q., Li, L. Y., Yu, W.
core   +1 more source

Mechanical properties of Lop Nor salt rock fillers for subgrade and its forecast model construction

open access: yesFrontiers in Materials, 2023
A deep exploration was conducted on the evolution law of the mechanical properties of salt rock fillers under the influence of different forming parameters in the Lop Nor area to promote the engineering application process of salt rock.
Cheng Cheng   +6 more
doaj   +1 more source

Characteristics and purification of Himalayan salt by high temperature melting

open access: yesHigh Temperature Materials and Processes, 2023
Himalayan rock salt contains a variety of minerals and trace elements, which is conducive to human health. The solutions of black rock salt and rose salt are alkaline, and the content of water insoluble matter is 0.34 and 0.083%, respectively.
Deng Zhigan   +5 more
doaj   +1 more source

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