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Article
Friction Behavior and Wear Mechanism of Twin-Roll Casting Zr55Cu30Al10Ni5 Amorphous Alloy
The Zr55Cu30Al10Ni5 amorphous alloy with thickness 0.5 mm and width of 75 mm was fabricated by twin-roll casting. Due to high rolling force, the alloy exhibited high energy state, high free volume and microstruct...
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Article
Open AccessCorrection: Mesenchymal stem cells transplantation for perianal fistulas: a systematic review and meta-analysis of clinical trials
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Article
Open AccessSTCF conceptual design report (Volume 1): Physics & detector
The super τ-charm facility (STCF) is an electron–positron collider proposed by the Chinese particle physics community. It is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak lumino...
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Article
Open AccessMesenchymal stem cells transplantation for perianal fistulas: a systematic review and meta-analysis of clinical trials
Perianal fistulas, characterised as granulomatous inflammation of fistulas around the anal canal, are associated with significant morbidity resulting in a negative impact on quality of life and a tremendous bu...
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Article
Estimating Critical Shear Velocity of Incipient Cohesive Sediment Motion of Shallow Slope Under Surface Runoff
Surface runoff is an important factor inducing soil erosion of shallow slope. Due to the complexity of material composition, grain arrangement and porosity structure, however, it is difficult to directly give ...
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Chapter and Conference Paper
Spalling Resistance of Hybrid Polyethylene and Steel Fiber-Reinforced High-Strength Engineered Cementitious Composite
We analyzed the effect of elevated temperatures on the integrity of high-strength engineered cementitious composite (ECC) made with a hybrid combination of polyethylene (PE) and steel fibers. The 50 mm cube sp...
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Chapter and Conference Paper
Study on Nozzle Baffle in Shield Machine Remote Pressure Maintaining System
The research on the mechanism of nozzle baffle at home and abroad mainly focuses on the theoretical research of nozzle baffle gap and back pressure, and lacks engineering application. This paper takes the remo...
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Chapter and Conference Paper
Behavior of Hybrid Engineered Cementitious Composites Containing Nanocellulose
Nanocellulose (NC) is a promising reinforcing material for cementitious composites, but its effect on the mechanical properties of hybrid engineered cementitious composites (ECCs) has not been studied. In this...
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Chapter and Conference Paper
Numerical Simulation and Flow Characteristic Analysis of Labyrinth Control Valve
For the labyrinth trap regulating valve, combined with the principle of multistage step-down principle, the boundary conditions are set according to the actual working conditions. The k − ε turbulent model is use...
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Chapter and Conference Paper
The Influence of Coal Water Slurry Particle Size on the Erosion of Reducing Pipe
Coal chemical industry transportation of coal slurry is a typical solid–liquid two-phase flow, this process is accompanied by the erosion and abrasion of the pulverized coal slag on the inner wall of the pipel...
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Article
Stress and Deformation During Solidification of Amorphous Alloys Causes Microstructural Inhomogeneity
This work studies the solidification processes and microstructures of Zr55Cu30Al10Ni5 (at. pct) and Cu64Zr36 (at. pct) amorphous alloy sheets fabricated by twin-roll strip casting. A largely excessive volume was ...
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Article
Extraction and Evolution Analysis of Urban Built-Up Areas in Bei**g, 1984–2018
Accurate extraction of the boundaries of urban built-up areas (UBA) based on remote sensing and GIS technology is extremely important for predicting urban spatial evolution. Therefore, this study proposes a me...
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Article
Open AccessPhotogrammetric evaluation of shear modulus of glulam timber using torsion test method and dual stereo vision system
The shear modulus of timber and timber-based composite materials is a fundamental mechanical property, which is used in the design of timber and engineered wood products. The problem of experimentally determin...
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Article
Green–Kubo formula for Boltzmann and Fermi–Dirac statistics
Shear viscosity of nuclear matter is extracted via the Green–Kubo formula and the Gaussian thermostated SLLOD algorithm (the shear rate method) in a periodic box by using an improved quantum molecular dynamic ...
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Article
Improvement of texture and magnetic properties of strip-cast grain-oriented electrical steel by trace Bi addition
The improvement of recrystallization texture and magnetic properties in grain-oriented electrical steel with trace Bi addition processed by strip casting process was studied in this study. Low casting temperat...
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Chapter and Conference Paper
Numerical Evaluation the Effect of Specimen Thickness on Fibre Orientation in Self-consolidating Engineered Cementitious Composites
The orientation of distributed synthetic fibres in the matrix of engineered cementitious composites (ECCs) governs their capability of bearing stress and bridging micro-cracks. Understanding the orientation of...
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Article
Correlation between Obstructive Sleep Apnea and Non-Alcoholic Fatty Liver Disease before and after Metabolic Bariatric Surgery
Emerging evidence has revealed that obstructive sleep apnea (OSA) is associated with non-alcoholic fatty liver disease (NAFLD). However, the impact of OSA on NAFLD among obese patients undergoing metabolic and...
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Article
2D Real Microstructure Simulation Method for Metal Materials
The method of constructing a 2D simulation model based on the real microstructure is developed to simulate the microstructural evolution of materials. Microstructure photographs of two typical metallic materia...
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Chapter and Conference Paper
Influence of Silica Fume on Material Properties of Magnesium Oxychloride Cement
As a fast setting and air-hardening green cementitious material, magnesium oxychloride cement (MOC) has attracted lots of research interest. The low energy consumption and good bonding to varieties of urban re...
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Chapter and Conference Paper
Mechanical Properties of Nano-Particle Modified Ultra-High Performance Fiber Reinforced Concrete
The effect of nano-CaCO3 with different contents (i.e., 0, 1, 2, 3, 4% by mass of cement) on the mechanical properties including the compressive and tensile strength of ultra-high performance fiber reinforced con...
