Dual helical cone-beam CT for inspecting large object

Zou, Xiaobing; Zeng, Li; Li, Zongjian

doi:10.3233/xst-2009-0225

Cited by 10 publications

(1 citation statement)

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“…The introduction of ultrasonic can achieve a good replacement rate at a relatively low concentration of PbCl 2 , in that case, the larger liquid–solid ratio can be adopted in the leaching stage when the concentration required for the replacement process is low. Meanwhile, larger liquid–solid ratio in the leaching process can lower the viscosity of the leaching solution, increase the diffusion coefficient and increase the leaching rate in the leaching process [29]. Considering the relationship between the cost of calcium chloride and the leaching rate, the leaching solution concentration was selected as 5 g l −1 as a parameter for subsequent experiments.…”

Section: Resultsmentioning

confidence: 99%

Ultrasonic-enhanced replacement of lead in lead hydrometallurgy process from lead leaching solution

Xie

Zhang

et al. 2019

R. Soc. open sci.

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In this paper, ultrasonic-enhanced replacement of lead by zinc in lead leaching solution was studied. The effects of reaction time, rotational speed, temperature, concentration of leaching solution and the ratio of the surface area of the zinc plate immersed in the leaching solution to the volume of leaching solution (S : V) were studied under both conventional and ultrasonic conditions. The optimum ultrasonic-assisted replacement conditions were as follows: the S : V of 0.04 (4 cm 2 100 ml −1 ), reaction temperature of 30°C, replacement time of 30 min and the concentration of leaching solution is 5 g l −1 , leading to a lead replacement rate of 94.84%. Compared with the conventional replacement process, the reaction time of ultrasonic-enhanced substitution could be reduced to one half, and the demand of reaction temperature, leaching solution concentration and other conditions were decreased accordingly. Introducing ultrasonic into the replacement reaction is promising to reduce the energy consumption in the hydrometallurgical industry also caters to the demands of environment protection.

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Section: Resultsmentioning

confidence: 99%

Ultrasonic-enhanced replacement of lead in lead hydrometallurgy process from lead leaching solution

Xie

Zhang

et al. 2019

R. Soc. open sci.

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Automatic Detection and Characterization of Funnel Chest Based on Spiral CT

Papp¹,

Juhasz

Travar

et al. 2009

2009 3rd International Conference on Bioinformatics and Biomedical Engineering

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A method was proposed in order to process and classify CT slices representing funnel chest deformities. A manually chosen CT slice was processed to detect the inner curvature of the chest for characterization. Normalized data from the detected inner curvature was gained and saved next to a manually-given deformity type for further classifications. Based on the multiple correlations of the values gained from the inner curvature, a hierarchical classification was performed on 199 patient data. Results have shown that the calculated values gained from the inner curvature can accurately characterize the deformity type of the chest. Since minimal user interaction was necessary to detect and characterize the inner curvature, our method is considered to be an effective automated procedure for funnel chest deformity classifications.

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