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Experimental study on the effect of CO2 injection on the permeability characteristics of reservoir sandstone.
PLoS One
January 2025
School of Mechanics and Engineering, Liaoning Technical University, Fuxin, Liaoning, China.
Using the Ordos Basin dry sandstone and sandstone saturated with different saline concentrations as research subjects, a self-developed constant temperature and pressure CO2 injection simulation device was employed to conduct permeability tests on sandstone under varying effective stresses and CO2 injection pressures. The test results indicated that during the CO2 injection process, the permeability of dry sandstone was two orders of magnitude higher than that of sandstones saturated with different saline concentrations. When the effective stress increases from 10 MPa to 28 MPa, the fissure compressibility of reservoir sandstone is influenced by the saturation of different saline concentrations, with the compressibility coefficients for 0%, 15%, and 30% saline-saturated sandstone being 0.
View Article and Find Full Text PDFDouble-Dynamic-Bond Cross-Linked Hydrogel Adhesive with Cohesion-Adhesion Enhancement for Emergency Tissue Closure and Infected Wound Healing.
Adv Healthc Mater
January 2025
College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China.
The hydrogel adhesives with strong tissue adhesion and biological characteristics adhm202404447are urgently needed for injury sealing and tissue repair. However, the negative correlation between tissue adhesion and the mechanical strength poses a challenge for their practical application. Herein, a bio-inspired cohesive enhancement strategy is developed to prepare the hydrogel adhesive with simultaneously enhanced mechanical strength and tissue adhesion.
View Article and Find Full Text PDFStrain-dependent structural, electronic, mechanical, optical and thermoelectric properties of SrNBr perovskites for solar cell applications.
Phys Chem Chem Phys
January 2025
Department of Physics, Riphah International University, Islamabad 44000, Pakistan.
Halide perovskites are a class of materials with excellent potential for solar cell applications due to their excellent optical and electronic properties. In this study, strain-dependent physical properties of SrNBr perovskites are investigated and theoretical results are reported here. The structural properties indicate that SrNBr has a cubic structure.
View Article and Find Full Text PDFFirst principles design of multifunctional spintronic devices based on super narrow borophene nanoribbons.
Sci Rep
January 2025
Shandong Key Laboratory of Medical Physics and Image Processing & Shandong Provincial Engineering and Technical Center of Light Manipulations, School of Physics and Electronics, Shandong Normal University, Jinan, 250358, China.
Borophene, as a new material with various configurations, has attracted significant research attention in recent years. In this study, the electronic properties of a series of χ-type borophene nanoribbons (BNRs) are investigated using a first-principles approach. The results show that the width and edge pattern of the nanoribbons can effectively tune their electronic properties.
View Article and Find Full Text PDFSustainable application of waste gangue mortar in coal mine tunnel support.
Sci Rep
January 2025
School of Urban Planning and Municipal Engineering, Xi'an Polytechnic University, Xi'an, 710048, China.
With the increase in coal mining depths, soft and fractured roadway surrounding rocks require grouting and a sprayed protective layer for maintenance. Simultaneously, extensive accumulation of coal gangue causes diverse environmental issues. To enhance on-site coal gangue utilization, this study replaced river sand and cement with coal gangue to develop a novel cement-based mortar for supporting coal mine roadways.
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