60 Result(s)
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Article
Numerical simulation on thermal accumulation of cemented tailings backfill
Based on the collaborative exploitation of deep mineral resources and geothermal resources, the thermal accumulation process of cemented tailings backfill (CTB) was studied by numerical simulation. The effects...
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Article
Effects of pressure and plastic addition on sticking of fine iron ore particles in fluidized bed reduction
The adhesion of fine iron ore particles during fluidized bed reduction was studied using pressurized visible fluidized bed laboratory equipment. The results showed that the optimal operating parameters for pur...
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Article
Prediction of structural and electronic properties of Cl2 adsorbed on TiO2(100) surface with C or CO in fluidized chlorination process: A first-principles study
Based on the first-principles calculations of density functional theory, co-adsorption models of C or CO with Cl2 on rutile TiO2 (100) surface were established. The adsorption structures and electronic properties...
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Article
Recovery of lead and silver from zinc acid-leaching residue via a sulfation roasting and oxygen-rich chlorination leaching method
A large amount of acid-leaching residue is produced during the conventional Zn hydrometallurgy process, and this residue has a large concentration of a variety of valuable metals. The purpose of this study was...
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Article
Application of wide-field electromagnetic method in shale gas survey in Eastern Kunlun, Qinghai province, China
In order to study the distribution of shale gas reservoir in the Babaoshan Basin of Eastern Kunlun, the wide-field electromagnetic (WFEM) survey was carried out to obtain the spatial distribution characteristi...
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Article
Experimental investigation on failure process and spatio-temporal evolution of rockburst in granite with a prefabricated circular hole
To study the mechanism of rockburst and its spatio-temporal evolution criterion, a rockburst simulation experiment was performed on granite specimens, each with a prefabricated circular hole, under different l...
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Article
Dynamic disaster control of backfill mining under thick magmatic rock in one side goaf: A case study
In order to explore the control effect of backfill mining on dynamic disasters under special geological mining conditions of overlying thick magmatic rock (TMR), a three-dimensional numerical model of a panel ...
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Article
Oxygen pressure acid leaching of artificial sphalerite catalyzed by Fe3+/Fe2+ self-precipitation
The mechanism of oxygen pressure acid leaching of sphalerite catalyzed by Fe3+/Fe2+ self-precipitation was investigated in this study. Artificial sphalerite was fabricated with varying amounts of iron content via...
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Article
Corrosion behavior and electrochemical property of Q235A steel in treated water containing halide ions (F−, Cl−) from nonferrous industry
The corrosion behaviors and electrochemical properties of Q235A steel in the treated water containing corrosive halide anions (F−, Cl−) have been investigated with corrosion tests of static coupon and dynamic cou...
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Article
Experimental investigation on combustion and unregulated emission characteristics of butanol-isomer/gasoline blends
Effects of butanol isomers on characteristics of combustion and emission were studied on PFI SI engine. Experiments were operated under the condition of 3 and 5 bar brake mean effective pressure (BMEP) engine ...
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Article
Effects of process parameters on dimensional precision and tensile strength of wax patterns for investment casting by selective laser sintering
Turbine blades, produced by the directional solidification (DS) process, often require high dimensional accuracy and excellent mechanical properties. A critical step in their production is the fabrication of w...
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Article
Tensile behavior of Ti-6Al-4V alloy fabricated by selective laser melting: effects of microstructures and as-built surface quality
Selective laser melting (SLM) is a powerful additive manufacturing (AM) technology, of which the most prominent advantage is the ability to produce components with a complex geometry. The service performances ...
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Article
Multi-scale regionalization based mining of spatio-temporal teleconnection patterns between anomalous sea and land climate events
Climate sequences can be applied to defining sensitive climate zones, and then the mining of spatio-temporal teleconnection patterns is useful for learning from the past and preparing for the future. However, ...
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Article
Three-dimensional formation kee** of multi-UAV based on consensus
Consensus is an emerging technique using neighbor-to-neighbor interaction to generate steering commands for cooperative control of multiple vehicles. A three-dimensional formation kee** strategy for multiple...
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Article
Effects of embedding direct reduction followed by magnetic separation on recovering titanium and iron of beach titanomagnetite concentrate
Embedding direct reduction followed by magnetic separation was conducted to fully recover iron and titanium separately from beach titanomagnetite (TTM). The influences of reduction conditions, such as molar ra...
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Article
Numerical simulation on vacuum solution heat treatment and gas quenching process of a low rhenium-containing Ni-based single crystal turbine blade
Numerical heat-transfer and turbulent flow model for an industrial high-pressure gas quenching vacuum furnace was established to simulate the heating, holding and gas fan quenching of a low rhenium-bearing Ni-...
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Article
Optimization of flow control devices for a T-type five-strand billet caster tundish: water modeling and numerical simulation
The optimization of flow control devices (FCDs) for a T-type five-strand billet caster tundish was carried out by water modeling and numerical simulation. In water modeling experiments, flow characteristics of...
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Article
Effect of sodium sulfate on direct reduction of beach titanomagnetite for separation of iron and titanium
The effect of sodium sulfate on direct reduction of beach titanomagnetite, followed by magnetic separation, to separate iron and titanium was investigated. Direct reduced iron (DRI) with a high Fe content, low...
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Article
Design and application of electric oil pump in automatic transmission for efficiency improvement and start–stop function
For the purpose of improving efficiency and realizing start–stop function, an electric oil pump (EOP) is integrated into an 8-speed automatic transmission (AT). A mathematical model is built to calculate the t...
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Article
Modeling of aluminum-silicon irregular eutectic growth by cellular automaton model
Due to the extensive application of Al-Si alloys in the automotive and aerospace industries as structural components, an understanding of their microstructural formation, such as dendrite and (Al+Si) eutectic,...
