نتایج جستجو برای: glycols
تعداد نتایج: 14974 فیلتر نتایج به سال:
Extractive distillation is an alternative for ethanol dehydration processes that has been shown to be more effective than azeotropic distillation and, in close proximity, to be very competitive against the process that uses adsorption with molecular sieves. Glycols have been shown to be the most effective solvents in extractive distillation, mainly ethylene glycol and glycerol. In this work, an...
Studies have demonstrated significant heterogeneity in neutrophil granule morphology and physical density. Using cytochemical methods to localize peroxidase and vicinal glycol containing complex carbohydrates we examined the heterogeneity of neutrophil granules from intact human neutrophil granules in 13 isolated granule density fractions, calcium ionophore A23187 treated neutrophils and neutro...
Carbowax Polyethylene Glycols, Union Carbide Industrial Chemicals Division, Product Information Bulletin (1986). Charbeneau, Gerald T., D.D.S. et al., "Chemical Tissue Packs.” Principles and Practice of Operative Dentistry, pp. 390-391, Lea & Febiger (1975). Fischer, Dan, D.D.S., "Chapter 15:Tissue Management for Making Impressions,” Restorative Techniques for Individual Teeth, edited by Lloyd ...
The mechanochemical preparation of highly functionalized 3,5-disubstituted hydantoins was investigated in the presence of various poly(ethylene) glycols (PEGs), as safe grinding assisting agents (liquid-assisted grinding, LAG). A comparative study under dry-grinding conditions was also performed. The results showed that the cyclization reaction was influenced by the amount of the PEG grinding a...
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