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3161
Adaptability Evaluation of High-Density Kill Fluid for Ultra-Deep and Ultra-High Temperature Well Testing in Tarim Oilfield
Published 2025-04-01“…The correlation between the microstructure and macroscopic properties of kill fluids was elucidated through particle size distribution analysis, scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and rheological characterization. …”
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3162
Research and Performance Test of New Full-Length Anchorage Material
Published 2021-01-01“…The results show that the optimal content of each component of the new inorganic high-performance full-length anchorage material is as follows: the content of component A is 15%, the content of component B is 3%, the content of component C is 0.2%, the content of component D is 1%, and the content of component E is 1%; the tensile test shows that the full-length anchoring material has good bonding property, high anchoring strength, strong stability, and good rock coupling. SEM microstructure and morphology analysis have showed that the new anchorage materials can fully hydrate each other, resulting in a relatively dense stone body. …”
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3163
Influences of superabsorbent polymer (SAP) on the compressive strength and crack-healing ability of self-compacting concrete containing high-volume ground bottom ash
Published 2025-07-01“…Furthermore, the inclusion of SAP or SAP saturated with Ca(OH)2 significantly reduced chloride penetration in SCC. Microstructure analysis revealed the presence of crack-healing products including CSH gels and CaCO3 precipitation.…”
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3164
Physically Cross-Linked PVA Hydrogels as Potential Wound Dressings: How Freezing Conditions and Formulation Composition Define Cryogel Structure and Performance
Published 2024-10-01“…<b>Methods</b>: Mechanical properties, absorption capacity, and microstructure were assessed alongside advanced analyses using differential scanning calorimetry (DSC) and low-field nuclear magnetic resonance relaxometry (LF TD NMR). …”
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3165
Thermogenic preworkout supplement induces alveolar bone loss in a rat model of tooth movement via RANK/RANKL/OPG pathway
Published 2024-12-01“…Micro-computed tomography (micro-CT) was used to investigate the dynamic changes in the microstructure of alveolar bone during orthodontic tooth movement in rats. …”
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3166
Impact of Particle Size and Sintering Temperature on Calcium Phosphate Gyroid Structure Scaffolds for Bone Tissue Engineering
Published 2024-11-01“…The physicochemical analysis showed that the microstructure varied with sintering temperature and that narrow particle size distribution resulted in smaller micropores and a smoother surface. …”
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3167
Development and Characterization of an Injectable Alginate/Chitosan Composite Hydrogel Reinforced with Cyclic-RGD Functionalized Graphene Oxide for Potential Tissue Regeneration Ap...
Published 2025-04-01“…Characterization included FTIR (C=N bond at 1650 cm⁻¹), Raman spectroscopy (D/G bands at 1338/1567 cm⁻¹), SEM (porous microstructure), and rheological analysis (shear-thinning behavior). …”
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3168
Accelerated TLPD bonding of reliable IMCs micro joints using Cu–8Ni substrate under thermal gradient: Experiments and theoretical calculations
Published 2025-03-01“…Additionally, the microstructure, elemental characteristics, grain features and shear strengths of the bonded and aged micro joints were systematically investigated. …”
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3169
Evolution of local heterogeneity towards flat free energy landscape: Optimization of piezoelectric response in PNN-PZ-PT at morphotropic phase boundary
Published 2025-06-01“…The effect of Sm3+doping on the structure, microstructure, dielectric, ferroelectric and piezoelectric properties of 0.55Pb(Ni1/3Nb2/3)O3–0.135PbZrO3–0.315PbTiO3 were investigated. …”
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3170
Characteristics of specific surface area N2 adsorption and desorption method in the characterization of cow dung particles and their efficient combustion products
Published 2025-04-01“…For this reason, the microstructure of cow dung particles with different particle sizes and their combustion products under different working conditions was visually observed by transmission electron microscopy. …”
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3171
A Review of Reliability Assessment and Lifetime Prediction Methods for Electrical Machine Insulation Under Thermal Aging
Published 2025-01-01“…Thermal aging not only leads to the degradation of macroscopic properties such as dielectric strength and breakdown voltage but also causes progressive changes in the microstructure, making the correlation between aging stress and aging indicators fundamental for lifetime evaluation and prediction. …”
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3172
Fracturing interference behavior and mechanism of deep coalbed methane horizontal wells in the Daning-Jixian Block
Published 2025-03-01“…The formation energy exhaustion degree of the disturbed well, the microstructure, ground stress and reservoir anisotropy of the interfering well work together to affect the fracture pattern of the interfering well. …”
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3173
Research on Primary Knock-on Atom and DPA Calculation in SiC Fuel Clad of Micro Gas-cooled Reactor
Published 2025-01-01“…During the lifetime of reactor, the fuel suffers from neutron irradiation, resulting in a series of radiation damage such as displacement damage, irradiation swelling and transmutation, which leads to permanent changes in microstructure and further affects the performance of the whole fuel system. …”
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3174
Study on the High-Temperature Corrosion Behavior of Cr<sub>3</sub>C<sub>2</sub>/Cr<sub>2</sub>AlC MAX Phase Composite Coatings on Stainless Steel Surfaces in Molten Sodium Polysulf...
Published 2025-06-01“…In order to address the issue of thermal expansion coefficient mismatch between Cr3C2 coatings and 304 stainless steel, and to enhance the corrosion resistance of 304 stainless steel, two different structural Cr3C2/Cr2AlC MAX composite coatings were prepared on the surface of 304 stainless steel using magnetron sputtering technology.The microstructure and phase composition of the coatings were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS) techniques.A comparative analysis was conducted on the corrosion resistance and behavior of Cr3C2/Cr2AlC MAX composite coatings with different structures in molten sodium polysulfide, as well as a single-layer Cr2AlC MAX coating.Results showed that the Cr3C2/Cr2AlC MAX composite coatings were dense and uniform, and were primarily composed of Cr3C2 and Cr2AlC MAX phases.After 120 h of corrosion, the corrosion rate of the Cr3C2/Cr2AlC MAX composite double-layer coating was measured at 0.03 mg/(m2∙h), while the corrosion rate of the Cr3C2/Cr2AlC MAX composite multilayer coating was recorded at 0.02 mg/(m2∙h),which was two orders of magnitude lower than that of the single-layer Cr2AlC MAX coating.Following corrosion in sodium polysulfide,a dense layer of Cr2S3 corrosion products was formed on the surfaces of both types of Cr3C2/Cr2AlC MAX composite coatings.After 120 h of corrosion,cracks were observed on the surface of the composite double-layer coating,which were attributed to thermal stress concentration leading to surface cracking.In contrast, the composite multilayer coating remained dense and defect-free even after prolonged exposure to corrosion, and was shown to demonstrate excellent corrosion resistance and stability in sodium polysulfide environments.…”
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3175
Effects of Electroacupuncture on Syt3 and GluA2 in Rats With Limb Spasms After Intracerebral Hemorrhage
Published 2025-03-01“…Transmission electron microscopy was utilized to examine the microstructure of neurons and synapses. Results Compared to the ICH group, rats in the EA group showed reduced muscle tone in the left limbs and significant improvement in neurological deficits and motor function. …”
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3176
Changes in the Properties of Different Zones in Multilayered Translucent Zirconia Used in Monolithic Restorations During Aging Process
Published 2025-03-01“…The 3Y/5Y-TZP transition zone exhibited flexural strength, Vickers hardness, phase distribution changes, and surface microstructure changes similar to those of 3Y-TZP before and after aging; however, the surface roughness was lower than that of 3Y-TZP and higher than those of 4Y-TZP and 5Y-TZP after aging. …”
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3177
Recycling cupola slag for manufacturing magnesium metal matrix composites with alumina for electric vehicle battery pack system housings
Published 2025-01-01“…Their mechanical properties and corrosion resistance in a 3.5 wt% NaCl solution were systematically evaluated. Microstructural analysis revealed a significant grain size reduction in the reinforced systems, with the 85M-12.5C-2.5 A system achieving an average grain size of 9.4 µm compared to 22.5 µm in the unreinforced 100 M system. …”
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3178
Utilizing multiple diffusion metrics in evaluation of corticospinal tract injury in patients with glioblastoma
Published 2025-07-01“…Bilateral CSTs were reconstructed, and a comparative analysis of diffusion parameters was performed based on four imaging models between affected and healthy sides. …”
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3179
Flexible piezoelectric energy harvester made of vertically-aligned ZnO nanowires hydrothermally-grown by template-assisted synthesis in poled PVDF
Published 2025-06-01“…Resulting ZnO/PVDF composites were characterized by infrared spectroscopy, grazing incidence X-ray diffraction, scanning and transmission electron microscopy, atomic force microscopy, reflectance spectroscopy, dielectric measurements and piezoelectric analysis. Vertically aligned ZnO nanowires grown in low-supersaturation conditions exhibited an ideal microstructure for enhancing the piezoelectric performance of β-PVDF, i.e. hexagonal wurtzite structure. …”
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3180
Study on stability control of stope structural in short-wall cemented backfill mining for recovery of room-and-pillar residual coal
Published 2025-06-01“…Finally, mechanical tests were performed to analyze the mechanical properties, failure characteristics, and microstructural features of the cemented backfill, and a complete design method for short-wall cemented backfill mining was proposed based on the actual engineering. …”
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