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232 Result(s)
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Article
Facile and controllable synthesis of nitrogen self-doped chitosan-derived carbon for high-performance Li-ion batteries
N-do** content and configurations have a significant effect on the electrochemical performance of carbon anodes. Herein, we proposed a simple method to synthesize highly N self-doped chitosan-derived carbon ...
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Article
Time-resolved fluorescence microspheres-antibody-penicillin-binding protein assisted construction of immunochromatographic assay for sensitive detection of 22 β-lactams in milk
A sensitive immunochromatographic assay (ICA) using time-resolved fluorescence microspheres (TRFMs) coupled with an indirect-labeling mode was developed for simultaneously determining 22 kinds of β-lactams in ...
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Article
High-efficient flexible pressure sensor based on nanofibers and carbon nanotubes for artificial electronic skin and human motion monitoring
Flexible pressure sensor plays a crucial role in wearable devices since it converts the physical signals of human motions into electrical signals. Among various pressure sensors, foam-based pressure sensors re...
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Article
Numerical Simulation of Particle Motion and Wall Scouring Behavior in Steelmaking Converter With Bottom Powder Injection
The coupled Eulerian-multifluid VOF-granular flow model was built to simulate gas–liquid-particle three-phase flow in a 120-ton steelmaking converter with bottom powder injection. Particle transport phenomenon...
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Article
A Hot Cracking Initiation Criterion Based on Solidification Liquid Film Characteristic and Microstructure
Herein, a hot cracking initiation criterion based on the characteristics of solidification liquid film and the microstructure was proposed, which integrated both the mechanical and non-mechanical factors durin...
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Article
Relaxor regulation and enhancement of energy storage properties in bi-modified Sr2NaNb5O15-based tetragonal tungsten bronze ceramics
Dielectric capacitors based on the relaxor ferroelectric ceramic with large discharge power density offer significant advantages for advanced pulsed power systems. Tungsten bronze-based relaxor ceramics have e...
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Article
Dual Strengthened Control of Recrystallization Behavior on CVCDE Magnesium Alloy Containing Characteristic Structure
Various characteristic structures in typical magnesium alloys, including dislocation cells, substructures and twins, have an important influence on the dynamic recrystallization behavior, and the DRX (dynamic ...
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Article
Research on Remote-Field Eddy Current Focusing Method for Detecting Hidden Defects in Aircraft Riveted Components
Most of the aircraft skin is assembled by riveted structural parts, and the riveted holes are prone to cracks due to stress concentration, so it is urgent to carry out non-destructive testing research on aircr...
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Article
The sensitivity and specificity of carbon dot species on the detection of chromium metal ions
Rapid industrialization has brought about Cr6+ pollution, and the excellent performance of carbon dots (CDs) provides a new idea for preparing environmentally friendly nanoprobes for Cr6+ detection. In the presen...
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Article
Study of the Effect of Ultrasonic Vibration on Nickel-Based Coating by Electrical Discharge Machining
Surface modification of ASTM 1045 carbon steel using ultrasonic vibration-assisted automatic electric discharge machining (UAEDM) in gaseous media was carried out, aiming to investigate the effect mechanism of...
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Article
Electrochemical performance enhancement of tremella-shape Li4Ti5 − xAlxO12 anode material for lithium-ion batteries
The Li4Ti5−xAlxO12 samples with tremella-shape were synthesized via a hydrothermal method at 550 °C and used as anode material in lithium-ion batteries. The XRD results revealed all as-prepared Li4Ti5−xAlxO12 sam...
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Article
Micro/Nano-Scale Selective Phase/Area Corrosion Behavior of Nickel Aluminum Bronze (NAB)/Zn Composite Prepared by Friction Stir Processing
In this work, nickel aluminum bronze (NAB)/Zn composites were prepared by friction stir processing (FSP), and the selective phase/area corrosion behavior of the composites was studied in the micro/nano-scale b...
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Article
A sensitive electrochemical aptasensor for zearalenone detection based on target-triggered branched hybridization chain reaction and exonuclease I–assisted recycling
Traditional methods for detecting antibiotic and mycotoxin residues rely on large-scale instruments, which are expensive and require complex sample pretreatment processes and professional operators. Although a...
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Article
Effects of Melt-Constrained Flow-Induced Nucleation Channel Length on Temperature Field and Microstructure of CuSn10P1 Alloy Semi-Solid Slurry
With the increasing use of metal semi-solid forming technology in the production of high-quality copper alloy parts, foundational research on the robust preparation of copper alloy semi-solid slurry as key com...
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Article
Influence of host–guest interactions on analytical performance of direct analysis in real-time mass spectrometry
To systematically study the influence of host–guest interactions on the analytical performance of direct analysis in real time mass spectrometry (DART-MS), the interactions between cyclodextrins (CDs) and diff...
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Article
Synthesis and Characterization of Fe3O4 Nanoparticles Prepared by Solvothermal Method
As one of the most important and basic magnetic materials, Fe3O4 nanoparticles have wide applications in water treatment. In this paper, the Fe3O4 nanoparticles were synthesized by solvothermal method. The magnet...
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Article
Numerical Simulation of Particle Transport Phenomenon in Steelmaking Converter With Bottom Powder Injection Based on Eulerian-Multifluid VOF-Granular Flow Model
High-efficiency converter steelmaking is still a hot topic in steel industry. In the present work, a coupled Eulerian-multifluid VOF-granular flow model was developed to study the particle transport phenomenon...
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Article
Electrochemical corrosion and impedance studies of Ti-30Zr-xNb (x = 7, 10, 13 at.%) alloy in simulated downhole environment
The microstructure and corrosion behavior of Ti-30Zr-xNb (x = 7, 10, 13 at.%) alloy for oil and gas downhole tools are studied. The microstructure of alloy is characterized by X-ray diffractometer (XRD), optical ...
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Article
Open AccessFactorial design analytics on effects of material parameter uncertainties in multiphysics modeling of additive manufacturing
A bottleneck in Laser Powder Bed Fusion (L-PBF) metal additive manufacturing (AM) is the quality inconsistency of its products. To address this issue without costly experimentation, computational multi-physics...
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Article
Polyvinylammonium-immobilized FAPbI3 Perovskite Grains for Flexible Fibrous Woven RRAM Array
Woven resistive random access memory (RRAM) is a promising subject in flexible wearable electronic devices. In this work, polyvinylammonium iodate (PVAm·HI) is added to the FAPbI3 perovskite precursor solution to...