نتایج جستجو برای: slurry phase

تعداد نتایج: 604381  

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The purpose of this study was to investigate the effect of high alumina cement and Sintering temperature on microstructure, physical and mechanical properties of foamed alumina insulation bricks. The Slurry samples  were prepared containing 75wt% of alumina and 25% wt of deionised water containing 1%, 3%, 5%, 7% wt% high Alumina cement and 2% wt% foam. Then samples were poured into metal molds....

E. Damavandi, S. Nourouzi S.M. Rabiee

Aluminum/alumina composites are used in automotive and aerospace industries due to their low density and good mechanical strength. In this research, the effect of mechanical stirring of slurry in liquid-solid phase temperature and injection of alumina powder with inert gas (Ar) on microstructure and mechanical properties of Al-A356 alloy is investigated. In order to improve of the wettability a...

Journal: :International journal of food microbiology 2005
Carmen A Campos Oscar Rodríguez Vanesa Losada Santiago P Aubourg Jorge Barros-Velázquez

The use of slurry ice, both alone and in combination with ozone, as compared with traditional flake ice was investigated as a new refrigeration system for the storage of sardine (Sardina pilchardus). Microbiological, chemical and sensory analyses were carried out throughout a storage period of 22 days. According to sensory analyses, sardine specimens stored in ozonised slurry ice had a shelf li...

Journal: :Journal of environmental monitoring : JEM 2010
Steven J Granger Roland Bol Liz Dixon Pam S Naden Gareth H Old Jon K Marsh Gary Bilotta Richard Brazier Sue M White Philip M Haygarth

A study was undertaken on drained and undrained 1 ha grassland lysimeters to assess the effectiveness of multiple novel tracing techniques in understanding how agricultural slurry waste moves from land to water. Artificial fluorescent particles designed to mimic the size and density of organic slurry particles were found to move off the grassland via inter-flow (surface + lateral through-flow) ...

In this study, Spark Plasma Sintering (SPS)  of both slip casted and powder specimens of alumina/ yttria core-shell nanocomposite were utilized for fabricating transparent Yttrium Aluminum Garnet (YAG) ceramics. Phase evolution, optical transmittance and the microstructure of sintered samples were compared. In slip casting process, Dolapix CE64 was used as a dispersant for preparing t...

Journal: :Journal of environmental quality 2011
J M Powell M J Aguerre M A Wattiaux

Excess crude protein (CP) in dairy cow diets is excreted mostly as urea nitrogen (N), which increases ammonia (NH) emissions from dairy farms and heightens human health and environmental concerns. Feeding less CP and more tannin to dairy cows may enhance feed N use and milk production, abate NH emissions, and conserve the fertilizer N value of manure. Lab-scale ventilated chambers were used to ...

2006
B. Amon V. Kryvoruchko G. Moitzi T. Amon

NH3, CH4 and N2O emissions from dairy cattle and pig slurries were quantified. The effect of the following treatments was investigated: untreated covered slurry, mechanically separated slurry, anaerobically digested slurry, slurry covered with a layer of straw, and slurry aeration. Measurements were carried out with dairy cattle and with pig slurry, in winter and in summer. After storage, slurr...

Journal: :Journal of Catalysis 2021

The performance profile of a supported metallocene catalyst in slurry-phase ethylene polymerisation can be significantly enhanced by tuning the chemical composition support. By employing supports derived from zinc-containing layered double hydroxides (LDHs), slurry phase productivity (EBI)ZrCl2 (EBI = rac-ethylenebis(indenyl)) quadrupled relative to magnesium-containing Productivity increases a...

Journal: :Annals of agricultural and environmental medicine : AAEM 2013
Krzysztof Skowron Halina Olszewska Piotr Paluszak Karolina Jadwiga Skowron Justyna Bauza-Kaszewska

Slurry, due to high microbiological contamination, requires hygienization before spreading. The agricultural usage of treated slurry has to guarantee biosafety. Therefore, constant monitoring of the slurry treatment process should be conducted. The use of Filter-Sandwich carriers seems to be a prospective solution. The aim of the research was to test whether Filter-Sandwich carriers influence t...

2006

The Pi t tsburgh Energy Technology Center i s responsible f o r implementing the U.S. Department o f Energy's (DOE) I n d i r e c t L iquefact ion program as p a r t o f the Coal L iquefact ion program. The o v e r a l l goal of t he Coal L iquefact ion program i s t o develop the s c i e n t i f i c and engineering knowledge base t o he lp i ndus t r y market economically compet i t ive and en...

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