Results 1 to 10 of about 1,198,728 (346)

Large grain-size-dependent rheology contrasts of halite at low differential stress: evidence from microstructural study of naturally deformed gneissic Zechstein 2 rock salt (Kristallbrockensalz) from the northern Netherlands [PDF]

open access: yesSolid Earth, 2023
Constitutive laws to predict long-term deformation of solution-mined caverns and radioactive-waste repositories in rock salt play an important role in the energy transition. Much of this deformation is at differential stresses of a few megapascals, while
J. Barabasch   +4 more
doaj   +1 more source

The theory of generalized micropolar thermoelastic diffusion with double porosity [PDF]

open access: yesTheoretical and Applied Mechanics, 2022
The main purpose of the paper is to derive the constitutive relations and field equations for anisotropic micropolar thermoelastic medium with mass diffusion and double porosity.
Kansal Tarun
doaj   +1 more source

Study on estimation method of methane permeability in coal

open access: yes矿业科学学报, 2022
The gas flow path in coal body is mainly composed of slits and pores, which is a typical dual gas flow path structure. Generally, in order to quantify the apparent permeability of gas transport in different scale flow paths, mathematical models of ...
Li Wenrui   +3 more
doaj   +1 more source

Experimental study on compatibility of reservoir and polymer gel profile control agent

open access: yesFrontiers in Earth Science, 2022
The coupling relationship between polymer gel system and reservoir pores is an important basis for scientific formulation of tertiary oil recovery programs.
Sen Yang   +6 more
doaj   +1 more source

The Molecular Model of Organic Matter in Coal-Measure Shale: Structure Construction and Evaluation Based on Experimental Characterization

open access: yesMolecules, 2023
To investigate the molecular structure and micropore structure of organic matters in coal-measure shale, the black shale samples of the Shanxi formation were collected from Xishan Coalfield, Taiyuan, and a hybrid experimental–simulation method was used ...
Kunjie Li   +6 more
doaj   +1 more source

Electron microscopy of Cu − SiC composites: a cold-molding and solid phase sintering [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2018
Cu − SiC composites were studied by scanning electron microscopy after processes of molding and a heat treatment. After pressing, plastic deformation of copper particles and traces of destruction of silicon carbide (cracks and debris) are observed. After
N.A. Pan’kin, Vl.P. Mishkin
doaj   +1 more source

Approach to the Numerical Study of Wave Processes in a Layered and Fractured Porous Media in a Two-Dimensional Formulation

open access: yesMathematics, 2023
A new approach to the numerical study of arbitrary waveform impulses in a layered porous and fractured-porous medium in a two-dimensional formulation has been developed. Layers can have different characteristics and contain fractures.
Amir A. Gubaidullin   +2 more
doaj   +1 more source

The Influence of Mechanical Stress Micro Fields around Pores on the Strength of Elongated Etched Membrane

open access: yesMembranes, 2022
The investigation of the mechanical properties of polymer track-etched membranes (TMs) has attracted significant attention in connection with the extended region of their possible applications. In the present work, the mechanical stress fields around the
Venera Gumirova   +4 more
doaj   +1 more source

Pore‐forming process in dehydration of metakaolin‐based geopolymer

open access: yesInternational Journal of Ceramic Engineering & Science, 2021
The geopolymer catalyst supports utilized in the nuclear waste containers for the Fukushima Daiichi Nuclear Power Station will be required to have high porosity and durability.
Yaru Yang   +6 more
doaj   +1 more source

Segmentation of pores in carbon fiber reinforced polymers using the U-Net convolutional neural network

open access: yesActa Polytechnica CTU Proceedings, 2023
This study demonstrates the utilization of deep learning techniques for binary semantic segmentation of pores in carbon fiber reinforced polymers (CFRP) using X-ray computed tomography (XCT) datasets.
Miroslav Yosifov   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy