78 Result(s)
within
Engineering, general
**ang-hui Yu
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Article
Strength evolution and deterioration law of cemented gangue backfill body in acid mine water
Cemented gangue backfill technology is an important backfill mining method. However, the acid mine water environment could seriously affect the strength of the cemented gangue backfill body (CGBB). In this stu...
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Article
Aerodynamic effects of trains circulating through a bifurcated tunnel
In practice, bifurcated railway tunnels are occasionally employed in the construction of long tunnels due to specific geological reasons. However, the aerodynamic behaviors of trains moving through such comple...
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Article
Instability mechanism and energy evolution of surrounding rock at intersections of deep multi-form application
As mining progresses into deep strata, severe damage occurs at various long-life roadway intersections. To guide targeted repair and reinforcement operations, it is necessary to investigate the failure mechani...
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Article
Strengthening mechanism of steel fiber in UHPC: A new fracture phase field model
The engineering optimization of ultra-high strength concrete (UHPC) requires urgent exploration of the strengthening mechanism of steel fiber in UHPC and the establishment of an effective simulation model. In ...
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Article
Synthesis of hetero-site nucleation twisted bilayer MoS2 by local airflow perturbations and interlayer angle characterization
Twisted bilayer transition metal dichalcogenides including MoS2 have attracted great interest due to their unique Moiré superlattice induced electronic flat bands. High-quality twisted bilayer TMDs with uniform M...
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Article
Application of microbial mineralization in the treatment of sintering red mud
Red mud is a highly alkaline solid waste with very fine particles produced in the production of alumina from bauxite, which is difficult to utilize comprehensively. In this paper, microbial mineralization is a...
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Article
Preparation of high-purity reduced iron powder by Höganäs process from ultra-pure magnetite concentrate
In this study, firstly, an ultra-pure magnetite concentrate with 72.12% Fe and 0.09% Si was obtained by reverse flotation from superior magnetite concentrate with 68.38% Fe and 2.33% Si. Then, using the ultra-...
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Article
A combined method for simulating track irregularities with full information and small samples
In order to improve the accuracy and efficiency of the train-track-bridge coupled system (TTBS) dynamics random analysis under the excitation of track irregularities, a full information representation of the t...
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Article
Effect of micro-do** yttrium oxide on hot-press sintering of boron carbide
Dense B4C composites were fabricated by hot-press sintering using B4C and nano-scale yttrium oxide as the raw materials. The effects of Y2O3 content and sintering temperature on the microstructure and mechanical ...
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Article
Open AccessFertilization-induced reactive nitrogen gases and carbon dioxide emissions: insight to the carbon-nitrogen cycles
Different agricultural practices can pose significant threats to environmental quality and human health. This study aimed to assess the emissions of reactive nitrogen (NH3, NOx, and N2O) and carbon dioxide (CO2) ...
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Article
Piecewise linear representation of pressure wave data of high-speed trains traveling through tunnels
Piecewise linear representation (PLR) techniques have been widely adopted to recharacterize high-dimensionality time series data in numerous fields for purposes of dimensionality reduction, fluctuation filteri...
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Article
Effect of petrographic characteristics on uniaxial compressive strength of granitic rocks from **njiang, China
The petrographic characteristics of rocks are the determining factors affecting their mechanical properties. This study aims to intensively assess the effect degree of petrographic characteristics of granitic ...
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Article
Dynamic behaviors and mitigation measures of a train passing through windbreak transitions from ground to cutting
In this paper, the effects of a right-angle windbreak transition (RWT) from the flat ground to cutting on train aerodynamic and dynamic responses were investigated, then a mitigation measure, an oblique struct...
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Article
Comparative investigations of pressure waves induced by trains passing through a tunnel with different speed modes
Pressure waves induced by high-speed trains passing through a tunnel have adverse effects on train structures and passenger comfort. These adverse effects can be alleviated when the train passing through the t...
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Article
Aerodynamic effects on a railway tunnel with partially changed cross-sectional area
The present study numerically explored the aerodynamic performance of a novel railway tunnel with a partially reduced cross-section. The impact of the reduction rate of the tunnel cross-section on wave transmi...
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Article
Near-source topographic effect on seismic responses of a multi-span continuous railway bridge crossing a symmetrical V-shaped canyon
Past earthquakes have revealed that topographic features have significant impacts on the characteristics of ground motions, which may cause the amplification and de-amplification of input seismic waves. The to...
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Article
Influence of mortar gap on natural vibration frequencies of high-speed railway track-bridge system
Based on Hamilton’s principle, the differential equations of free vibration of track-bridge systems with mortar gap are derived. Hence, a method for calculating the natural frequencies of track-bridge systems ...
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Article
Deep learning-based intelligent management for sewage treatment plants
It is generally believed that intelligent management for sewage treatment plants (STPs) is essential to the sustainable engineering of future smart cities. The core of management lies in the precise prediction...
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Article
Hourly traffic flow forecasting using a new hybrid modelling method
Short-term traffic flow forecasting is a significant part of intelligent transportation system. In some traffic control scenarios, obtaining future traffic flow in advance is conducive to highway management de...
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Article
Effects of pre-rolling on mechanical properties and fatigue crack growth rate of 2195 Al-Li alloy
While pre-deformation is often conducted before aging treatment to increase the strength and microhardness of 2195 Al-Li alloy, it often increases the fatigue crack growth (FCG) rate and thus reduces the fatig...
