Suggested Topics within your search.
Suggested Topics within your search.
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Spin Magnetic Effect Activate Dual Site Intramolecular O─O Bridging for Nickel‐Iron Hydroxide Enhanced Oxygen Evolution Catalysis
Published 2025-03-01“…Abstract The oxygen evolution reaction (OER) involves the recombination of diamagnetic hydroxyl (OH) or water (H2O) into the paramagnetic triplet state of oxygen (O2). …”
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The Influences of Wear Debris on the Fretting Wear Behavior of Inconel718 Laser Cladding Alloy Layer
Published 2024-10-01“…Fretting wear is a material damage phenomenon caused by small vibrations between tightly contacting surfaces.Studying the role of debris in fretting wear is of great significance for revealing the damage evolution of materials during fretting wear.In this work, a fretting wear test was conducted on Inconel718 laser cladding alloy layer using ball/plane point contact method on a multifunctional friction and wear testing machine.After the experiment,the mechanical dynamic characteristics during fretting wear process are obtained by analyzing the Ft-D (friction displacement) curve and COF (coefficient of friction) curve.In addition, scanning electron microscopy (SEM) and three-dimensional profilometer (3D) were used to analyze the damage morphology of the contact interface and reveal the main damage mechanism of micro motion wear.The particle size distribution calculation software (Nano Measurer) was employed to statistically analyze the particle size distribution of abrasives.Results showed that the particle size of abrasive debris is mainly distributed between 1~3 μm, and the magnitude of displacement amplitude was positively correlated with the speed of debris discharge.At large displacement amplitudes, the size of the debris was relatively large,which could easily cause abrasive wear, while at small displacement amplitudes, debris was prone to accumulate and hinder the progress of wear.Moreover, under high normal loads, the generation of debris accelerated and exacerbated surface damage to the specimen, with fatigue wear and abrasive wear playing a dominant role.Under small normal loads, debris could reduce the friction force and friction coefficient.In addition, the removal of debris would not change the fretting regime.…”
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One-Pot Synthesis of CuS/Co<sub>3</sub>S<sub>4</sub>@MWCNT Composite as a High-Efficiency Catalyst for the Hydrogen Evolution Reaction
Published 2025-05-01“…Transition metal dichalcogenides, known for their unique electronic structure, demonstrate superior electrocatalytic capabilities for the hydrogen evolution reaction (HER), yet their effectiveness is still lacking. …”
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Enzyme Engineering: Performance Optimization, Novel Sources, and Applications in the Food Industry
Published 2024-11-01“…This review summarizes the latest progress in enzyme preparation, including enzyme design and modification technology, exploration of new enzyme sources, and application of enzyme preparation in food processing, detection, and preservation. The directed evolution technology improved the stability and catalytic efficiency of enzymes, while enzyme immobilization technology enhanced reusability and industrial applicability. …”
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Engineering and Clinical Study of Surface Geometry of Clear Aligners at the Nanoscale
Published 2024-11-01“…This paper investigates the evolution of the outer surface geometry of Invisalign<sup>®</sup>—clear orthodontic aligners—caused by degradation triggered by wearing. …”
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The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO). VIII. The Impact of External Photoevaporation on Disk Masses and Radii in Upper Scorpius
Published 2025-01-01“…Protoplanetary disk evolution can be deeply influenced by the UV radiation emitted by neighboring massive stars (mainly of spectral types O and B). …”
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RuO2 sub‐nanocluster decorated Co3O4 as efficient and pH‐universal oxygen evolution electrocatalyst
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Facile one-step radio frequency magnetron sputtering of Ni/NiO on stainless steel for an efficient electrode for hydrogen evolution reaction
Published 2025-06-01“…The advancement of affordable, ultrastable, and efficient electrode materials for basic hydrogen evolution reaction (HER) plays a crucial role in industrial hydrogen manufacture, resolving problems caused by carbon dioxide emissions. …”
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Evolution of strain field and crack prediction in cemented paste backfill specimens based on digital image correlation and computer vision recognition model
Published 2025-03-01“…Abstract In the field of mining engineering, ensuring the safe operation of mines is of utmost importance, and the stability of the backfill materials plays a pivotal role. This research comprehensively analyzes the strain field evolution and crack development in cemented paste backfill (CPB) specimens made from whole tailings under various backfill mix designs by using uniaxial compressive strength (UCS) testing, digital image correlation, and computer vision recognition (CVR) technology. …”
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Effect of PBF-LB/M Processing on the Microstructural Evolution and Local Mechanical Properties of Novel Al-Fe-Si-Cr-Ni Alloy
Published 2025-06-01“…The present study aims to investigate the microstructural evolution and local mechanical properties of an AlFe18Si8Cr5Ni2 alloy processed via Powder Bed Fusion–Laser-Based Manufacturing (PBF-LB/M). …”
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