Reactive Mixing in Rotating Packed Beds: On the Packing’s Role and Mixing Modeling
In this study, the influence of packing depth, liquid distribution, and volumetric ratio on mixing processes are for the first time investigated in detail. It is shown that the packing seems to be more important at low volumetric ratios and an overlapping liquid distribution, but less important – or even interfering with fast mixing – at higher volumetric ratios and an opposite liquid distribution. Based on these findings, a promising novel type of HiGee equipment is suggested, that is particularly suitable for fast mixing at high volumetric ratios. Additionally, the linear and the exponential approaches of the incorporation model, as well as of the Interaction-by-Exchange-with-the-Mean (IEM) model, are investigated for their suitability to accurately describe the mixing process. On the basis of revised kinetics for the Dushman reaction, micromixing time parameters in the order of 10-1 ms to 101 ms are obtained for the investigated operating conditions.Graphical abstract
At least 22 people have developed some type of respiratory illness after vaping or using e-cigarettes
HIGH blood pressure is a common condition in the UK. Making certain lifestyle tweaks can help to lower a soaring reading. According to a recent study, a popular juice may also do the trick.
Review of "Atlas of Artifacts in Clinical Neurophysiology," by William O. Tatum, IV Atlas of Artifacts in Clinical Neurophysiology by William O. Tatum , IV, Demos Medical Publishing, 2018 , 419 pages. ISBN: 9780826169341 . E-book ISBN: 978-0826169358 . List Price: $185.00; Amazon New: $154.02; Amazon Used: $144.00; Kindle: $129.36. Neurodiagn J. 2019 Aug 23;:1-2 Authors: Clark-Bash RJ PMID: 31441708 [PubMed - as supplied by publisher]
Authors: Moosavian SP, Arab A, Mehrabani S, Moradi S, Nasirian M Abstract Background: Several studies have investigated the effect of omega-3 fatty acids and vitamin E on oxidative stress and inflammation, but their findings are inconsistent. The aim of this meta-analysis is to elucidate the overall effects of co-supplementation with omega-3 fatty acids and vitamin E on oxidative stress and inflammation. Methods: We searched titles, abstracts, and keywords of relevant articles indexed in PubMed, ISI, Scopus, and Google Scholar databases up to December 2018 to identify eligible RCT studies. Random effects model was...
Conclusion: These results provide a potential mechanism involving AMPK activation/ROS inhibition signaling pathway in osteogenic differentiation of BMSCs enhanced by resveratrol. It suggests that development of therapy towards ROS is an effective way for osteoporosis treatment. PMID: 31438780 [PubMed - in process]