60 Result(s)
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Article
Numerical simulation of microstructure and microporosity morphology in directional solidification of aluminum-copper alloys: Effect of copper content and withdrawal rate
Microporosity formed in the solidification process of Al alloys is detrimental to the alloy properties. A two-dimensional cellular automaton (CA) model was developed to simulate the microstructure and micropor...
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Exploring the effect of cooling rate on non-isothermal crystallization of copolymer polypropylene by fast scanning calorimetry
Polypropylene is commonly used as a binder for ceramic injection molding, and rapid cooling is often encountered during processing. However, the crystallization behavior of polypropylene shows a strong depende...
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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
Brazing of C/C composites and 304 stainless steels via Ni/Mo composite interlayer
In order to improve the strength of C/C composites and 304 SS brazed joint, two substrates were brazed by adding metal interlayers (Ni, Mo, Ni/Mo) to BNi-2 or AgCuTi filler metals. The objective of this study ...
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Article
Swelling inhibition and infiltration promotion mechanism of polyethyleneimine
In order to solve landslides and slow infiltration rate in in-situ leaching process of weathered crust elution-deposited rare earth ore (WCE-DREO), the swelling inhibition performance and mechanism of polyethy...
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Article
Removal of arsenic from arsenic-containing solution in a three-dimensional electrode reactor
Deep treatment, a method for further reducing the content of a target substance, for toxic arsenic (As) from water is vital to reduce environmental pollution and ensure human health. Here, we employed electros...
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Article
Regulation mechanism of aging behavior and mechanical properties of 2195-T34 Al-Li alloy at different stress levels
The effect of aging on the mechanical properties of the 2195-T34 Al−Li alloy at different stress levels was investigated. When the stress was below the high-temperature yield strength (YS), the YS and elongati...
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Article
Droplet morphology analysis of drop-on-demand inkjet printing
As an accurate 2D/3D fabrication tool, inkjet printing technology has great potential in preparation of micro electronic devices. The morphology of droplets produced by the inkjet printer has a great impact on...
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Article
Review for the microseismic source location in surrounding rock of deep-buried tunnel
The purpose of this review is to introduce the principle and development of microseismic source localization technology in deep-buried tunnel engineering. First, it introduces the main methods of microseismic ...
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Article
On establishment of novel constitutive model for directionally solidified nickel-based superalloys utilizing machine learning methods
To enhance the accuracy of mechanical simulation in the directional solidification process of turbine blades for heavy-duty gas turbines, a new constitutive model that employs machine learning methods was deve...
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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
Brittleness of layer sandstone under triaxial loading and unloading
Accurately quantitative characterization of brittleness of coal or rocks is important for effective estimation of excavation efficiency in deep engineering. The in-situ stress evolution characteristics of laye...
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Article
Mechanical behavior of backfilled pillar under biaxial loading
Backfilling the pillar to form a pillar-backfill collaborative bearing structure is the key to cut and fill method. The pillar-backfill bearing system is also an important support structure to maintain the sta...
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Article
Experimental study of aerodynamic characteristics of high-speed train on bridge-tunnel junctions under crosswinds
This paper introduces a moving train model experimental study concerning aerodynamic characteristics of a Fuxing train with a scale ratio of 1:16.8 passing a bridge-tunnel junction under crosswinds. This exper...
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Article
Effect of calcium compounds on direct reduction and phosphorus removal of high-phosphorus iron ore
The increasing demand for iron ore in the world causes the continuous exhaustion of magnetite resources. The utilization of high-phosphorus iron ore becomes the focus. With calcium carbonate (CaCO3), calcium chlo...
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Article
Mathematic model and tooth contact analysis of a new spiral non-circular bevel gear
A novel spiral non-circular bevel gear that could be applied to variable-speed driving in intersecting axes was proposed by combining the design principles of non-circular bevel gears and the manufacturing pri...
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Article
Reaction behavior of silicon-rich diasporic bauxite with ammonium sulfate during roasting
The separation of Al from the silicon-rich diasporic bauxite is of great significance in alumina production. Herein, we proposed a low-temperature ammonium sulfate roasting-water leaching process to extract al...
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Article
Optimal path planning method of electric vehicles considering power supply
Because of the limitations of electric vehicle (EV) battery technology and relevant supporting facilities, there is a great risk of breakdown of EVs during driving. The resulting driver “range anxiety” greatly...
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Article
Experimental investigation on flow properties of cemented paste backfill through L-pipe and loop-pipe tests
With the gradual depletion of available ore at shallow depth, deep mines have been widely operated around the world and therefore need a longer distance to transport the backfill to the underground stope. In t...
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Article
Fracture evolution and localization effect of damage in rock based on wave velocity imaging technology
By utilizing wave velocity imaging technology, the uniaxial multi-stage loading test was conducted on siltstone to attain wave velocity imagings during rock fracture. Based on the time series parameters of aco...
