Bayer red mud is a strong alkaline solid waste discharged during alumina production. Due to large emissions and strong alkalinity, red mud is now mostly dammed or buried, which not only occupies huge land but also contaminates the surrounding ecosystem, causing the risk of collapse and landslide....
As to the AAO technique, self-organized wet etching of aluminium in spatially regular, triangular order seems to be the simplest and lowest cost one among all the above methods12. However, it is disposable and not easy to transfer the AAO pattern to the emission surface directly, especially ...
aaluminium non-stick pan 铝不粘锅的平底锅 [translate] aWAIST TAPE LENGTH 腰部磁带长度 [translate] a在你我之间 Between your me [translate] aBlondes Blondes [translate] a我建议每天读报 I suggested every day reads the newspaper [translate] a你模仿不起的高雅 You cannot imitate loftiness [...
Design is referred to a mathematical model that enables a summary of how the response variables behaved under the tested experimental circumstances. This mathematical model may determine the linear, quadratic and interactions between independent variables after first or second order equations (Equations (...
These screening methods are preliminary tests that should be supplemented by other qualitative analysis, since the colours obtained can be greatly influenced by cross conjugation and other structural features [20]. A summary of screening methods is presented in Table4, which shows that Bornträger an...
SummarySoils from Denmark and Tanzania were extracted with EDTA solutions of different concentrations and pH. After extraction for 3 months there was no significant (95% level) further increase in amounts of iron (and aluminium, calcium, and magnesium) during longer extraction periods. X-ray ...
The cutoff frequency resonances of longitudinal and flexural waves were selectively excited in a rod to determine the third-order elastic constants [22]. In summary, there has been immense interest in ZGV and cutoff frequency resonances in waveguides with a finite cross-section, along with their ...
11. The method of claim 1, further comprising a step of precipitating aluminium sulphate from either: a. the permeate produced from the hydrolysis liquor; or b. the permeate comprising at least titanyl sulphate. 12. The method of claim 1 wherein the particulate material is selected from the...
A uranium-containing solution often also includes other metals such as iron, aluminium, vanadium, molybdenum, manganese, nickel and rare earth metals. The extraction process must be constructed so that as little of the undesirable substances as possible is extracted along with the uranium. ...
an absorbing collimation, but a diffuse or semidiffuse channel with high Fermi potential reflects them back into the vessel. This avoids unnecessary losses and keeps the storage time high, which may be beneficial when the vessel is part of a UCN source with long buildup time of ...