13 Result(s)
within
**ao-Chun Lu
Metallic Materials
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Article
Soil microbial community in lead smelting area and the role of sulfur-oxidizing bacteria
The long-term operation of the lead smelter has brought serious heavy metal pollution to the surrounding soil. The microbial community structure and composition of heavy metal contaminated soil is important fo...
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Article
Two-thiols-regulated fabrication of plasmonic nanoparticles with co-enhanced Raman scattering and circular dichroism responses
Plasmonic nanoparticles (PNPs) with stable nanogaps are important to achieve strong, uniform and quantitative gap-enhanced Raman scattering (GERS) signals. Chiral PNPs with plasmonic circular dichroism (PCD) r...
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Article
Experimental investigation on synergetic prediction of granite rockburst using rock failure time and acoustic emission energy
The frequent occurrence of rockburst and the difficulty in predicting were considered in deep engineering and underground engineering. In this work, laboratory experiments on rockburst under true triaxial cond...
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Article
Experimental investigation on predicting precursory changes in entropy for dominant frequency of rockburst
Rockburst is a dynamic phenomenon accompanied by acoustic emission (AE) activities. It is difficult to predict rockburst accurately. Based on the fast Fourier transform (FFT) method and the information entropy...
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Article
GPU based numerical simulation of core shooting process
Core shooting process is the most widely used technique to make sand cores and it plays an important role in the quality of sand cores. Although numerical simulation can hopefully optimize the core shooting pr...
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Article
Influence of core sand properties on flow dynamics of core shooting process based on experiment and multiphase simulation
The influence of core sand properties on flow dynamics was investigated synchronously with various core sands, transparent core-box and high-speed camera. To confirm whether the core shooting process has signi...
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Article
Influence of core box vents distribution on flow dynamics of core shooting process based on experiment and numerical simulation
Core shooting process plays a decisive role in the quality of sand cores, and core box vents distribution is one of the most important factor determining the effectiveness of core shooting process. In this pap...
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Article
Chloride diffusivity in flexural cracked Portland cement concrete and fly ash concrete beams
In order to examine the effect of load-induced transverse cracks on the chloride penetration in flexural concrete beams, two different concretes, Portland cement concrete (PCC) and fly ash concrete (FAC), were...
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Article
Three-phase Fluid Numerical Simulation and Water Modeling Experiment of Supersonic Oxygen Jet Im**ement on Molten Bath in EAF
By means of the computational fluid dynamics software Fluent 6.3, a mathematical model of three-dimensional three-phase fluid flow field in the molten bath of electric arc furnace (EAF) with side accessorial o...
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Article
Characteristics and formation of high quality reservoirs in sediment gravity flows of Gangzhong area, Huanghua depression
Reservoirs can be developed in the sediment gravity flows. However, high quality reservoirs are found widespread in sediment gravity flows of Gangzhong area, Huanghua depression, Bohai Bay Basin, East China. C...
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Article
A new formant feature and its application in Mandarin vowel pronunciation quality assessment
In order to improve the Mandarin vowel pronunciation quality assessment, a novel formant feature was proposed and applied to formant classification for Chinese Mandarin vowel pronunciation quality evaluation. ...
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Article
A fast explicit finite difference method for determination of wellhead injection pressure
A fast explicit finite difference method (FEFDM), derived from the differential equations of one-dimensional steady pipe flow, was presented for calculation of wellhead injection pressure. Recalculation with a...
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Article
Critical Content of MgO in Spheroidisers
Magnesium oxide in spheroidiser is harmful to the production of ductile iron for decreasing active magnesium content. To obtain quality ductile iron, the effects of magnesium oxide content in spheroidisers on ...
