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composites is mainly influenced by the ratio fumed silica /aerogel and only slightly by the autoclave drying process . Addition of fumed silica powder results in an increase of the mean pore radius of the system ...
A study has been carried out to produce environmentally friendly lightweight concrete by substituting cement with alternative geopolymer binders. Fly ash and silica fume (waste materials) were used ...
attained the highest compression strength of 181 MPa with 13% replacement of GBFS with silica fume . The fresh property was reported to get worse with the addition of 20% to 30% silica fume , which revealed ...
. Terminal sterilization is compulsory unless the parenteral product or its primary packaging does not tolerate this technique [5, 6]. For the standard autoclaving process at 121°C, a sterility assurance level ...
. After incubation over-night at 4°C and subsequent centrifugation (17,000g, 30 min, 4°C), the product was adsorbed to fumed silica matrix Aerosil (type 380 V, Evonik, Essen, Germany). The matrix was washed ...
, emulsifiers or stabilisers are required to stabilize the droplets to prevent rapid re-coalescing. The emulsion droplet stabilization is often achieved through the addition of surfactants or emulsifiers which ...
(12 nm), and fine quartz (300 nm) were synthesized hydrothermally (in NaOH at 300°C) in low surfactant concentrations (Fig. 1 and Table 1). A total of 3.5 g of fumed silica was dispersed in 100 ml ...
Abstract Listeria monocytogenes is a food-borne pathogen which causes listeriosis and is difficult to eradicate from seafood processing environments; therefore, more effective control methods need ...
methicillin-resistant S. aureus and Pseudomonas aeruginosa (unpublished data). At 15 minutes of contact, there was log 6 reduction of bacteria. In addition to being effective antimicrobials, N-chloramine ...
and 60°C. The effect of pH and salinity on the stability of emulsion was determined by adjusting the pH (using 1 N HCl or 1 N NaOH) or salt concentration (by addition of NaCl) of the cell-free broth ...
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