scholarly journals CPFD simulation of enhanced cement raw meal fluidization through mixing with coarse, inert particles

2021 ◽  
Author(s):  
Nastaran Ahmadpour Samani ◽  
Chameera K. Jayarathna ◽  
Lars-Andre Tokheim
Keyword(s):  
Inert Particles

scholarly journals Phagolysosome formation in normal and colchicine-treated macrophages.

1975 ◽  
Vol 142 (4) ◽  
pp. 903-913 ◽  
Author(s):  
E L Pesanti ◽  
S G Axline
Keyword(s):  
Acid Phosphatase ◽  
Lysosomal Enzyme ◽  
Peritoneal Macrophages ◽  
Cell Type ◽  
Inert Particles ◽  
Time Periods ◽  
Mouse Peritoneal Macrophages ◽  
Over Time

Intracellular lysosomal fusion has been evaluated in cultivated mouse peritoneal macrophages by measurement of transfer of acid phosphatase to polyvinyltoluene (PVT)-containing phagolysosomes. Enzyme transfer was found to be directly and significantly related to the uptake of PVT and to be independent of time allowed for phagolysosome formation over time periods of 15 min to 18 h. In addition, the extent of transfer of lysosomal enzyme to phagolysosomes was unaffected by treatment of the cells with 10(-6) M colchicine, a dose which eradicates morphologically identifiable microtubules in this cell type within 2 h. The data indicate that intracellular fusion of lysosomes with phagosomes in the macrophage does not require formed microtubules and suggest that fusion occurs promptly after interiorization of inert particles.

scholarly journals Drying of suspension and pastes in fluidized bed of inert particles

2000 ◽  
Vol 65 (12) ◽  
pp. 963-974 ◽  
Author(s):  
Zeljko Grbavcic ◽  
Zorana Arsenijevic ◽  
Radmila Garic-Grulovic
Keyword(s):  
Pure Water ◽  
Operating Conditions ◽  
Raw Material ◽  
Water Evaporation ◽  
Large Temperature ◽  
Attractive Alternative ◽  
Mechanical Agitation ◽  
Inert Particles ◽  
Fluid Bed ◽  
Drying Efficiency

A fluid bed dryer with inert particles was used for the drying of suspensions and pastes. The effects of the operating conditions on the dryer throughput and on the product quality were investigated. Experiments were performed in a cylindrical column 215 mm in diameter and 1200 mm in height with 0.925 mm diameter glass spheres as the fluidizing media. Cineb fungicide, copper hydroxide and pure water were used as the feed material. With respect to the main efficiency criteria, i.e., specific water evaporation rate, specific heat consumption and specific air consumption, a fluid bed dryer with inert particles represents a very attractive alternative to other drying technologies. A high drying efficiency results from the large contact area and from the large temperature difference between the inlet and outlet air. A rapid mixing of the particles, due to aggregative fluidization and mechanical agitation, leads to nearly isothermal conditions throughout the bed. In our experiments, suspensions and very dense pastes were successfully treated. Suspension and product hold-up in the bed varies between 6 and 8 % by mass and a product with the same particle size as the raw material is obtained.

scholarly journals The Examination of the Tissues and Some Observations on the Blood Platelets of Rabbits at Intervals of Five Minutes, and Later, after Intravenous Inoculations of Staphylococcus aureus and Indian Ink

1931 ◽  
Vol 31 (2) ◽  
pp. 247-256 ◽  
Author(s):  
Leonard S. Dudgeon ◽  
H. K. Goadby
Keyword(s):  
Staphylococcus Aureus ◽  
Endothelial Cells ◽  
Colloidal Particles ◽  
Blood Platelets ◽  
The Other ◽  
Colloidal Silver ◽  
Intravenous Injections ◽  
Inert Particles ◽  
Tissue Reactions ◽  
Lung Capillaries

1. The tissue reactions in rabbits from intravenous injections of live and dead Staphylococcus aureus and massive doses of indian ink and colloidal silver have been studied.2. Any particles injected into the circulation cause the accumulation of polymorphs in the lung capillaries.3. Inert colloidal particles such as indian ink are clumped in the capillaries of the lungs, liver, spleen and kidneys, and are phagocytosed by the endothelial cells.4. Staphylococci (S. aureus), live or dead, are nearly all held up in the lungs, where they are actively phagocytosed by the polymorphs within 5 minutes of an intravenous injection.5. Subsequently the cocci are distributed to the other organs, where phagocytosis continues mainly by polymorphs, but in the liver also by the Kupfer cells.6. Special attention is drawn to the localisation of the cocci in certain areas in the kidneys.7. Platelet counting on animals injected with various substances showed that there is an agglomeration of the particles with the platelets, which are consequently removed from the circulation.8. In the case of the inert particles the platelets are then restored to the circulation. With organisms (S. aureus) some of the platelets appear to be completely removed from the blood together with the bacteria.

scholarly journals Dry powder aerosol containing muco-inert particles for excipient enhanced growth pulmonary drug delivery

2020 ◽  
Vol 29 ◽  
pp. 102262
Author(s):  
Guihong Chai ◽  
Amr Hassan ◽  
Tuo Meng ◽  
Lihua Lou ◽  
Jonathan Ma ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Pulmonary Drug Delivery ◽  
Dry Powder ◽  
Inert Particles ◽  
Dry Powder Aerosol ◽  
Powder Aerosol

scholarly journals On the cataphoresis of gliadin Part—The adsorption of gliadin on quartz

1934 ◽  
Vol 147 (860) ◽  
pp. 1-10 ◽  
Keyword(s):  
Electric Field ◽  
Chemical Properties ◽  
Plant Proteins ◽  
The Past ◽  
Physico Chemical ◽  
Inert Particles

There have been few systematic investigations of the physico-chemical properties of the more important plant proteins; such investigations as have been carried out in the past have concerned themselves almost entirely with the better known animal proteins. It was, therefore, thought desirable to make a study of the physico-chemical properties of the protein gliadin, which, together with glutenin, forms the chief constituent of the gluten of flour. Of all the methods employed for determining the mobility of colloid ions in an electric field, the micro-cataphoretic method is the most exact. In studying the micro-cataphoresis of protein sols in which the particles are not visible in the ultramicroscope, it has been usual to make measurements using inert particles coated with protein. Although it was found possible to obtain gliadin sols containing visible submicrons, it was decided to make observations also on quartz particles covered with gliadin.

Simulation By Cellular Automata Of The (Re) Crystallization Of A Matrix Containing An Inert Second Phase

1993 ◽  
Vol 321 ◽  
Author(s):  
C. F. Pezzee ◽  
D. C. Dunand
Keyword(s):  
Aspect Ratio ◽  
Cellular Automata ◽  
Single Phase ◽  
Second Phase ◽  
Particle Fraction ◽  
Aspect Ratios ◽  
Inert Particles ◽  
Mean Size ◽  
Particle Area ◽  
Particle Aspect Ratio

ABSTRACTTwo-dimensional cellular automata simulations were carried out to study the case of the crystallization (or recrystallization) of a matrix containing an inert, immobile second phase. A range of particle area fractions and aspect ratios were investigated under continuous grain nucleation conditions, assuming that the effect of particles is limited to geometric impingement upon contact with the growing grains. Systematic deviations from the classical Johnson, Mehl, Avrami, Kolmogo-rov equation for single-phase materials are observed with increasing particle aspect ratio and particle fraction. Inert particles also influence both mean size and mean aspect ratio of the final grains.

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