Results 221 to 230 of about 1,949 (257)
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Fine structure of shark leucocytes during chemotactic migration
Tissue and Cell, 1989It has previously been demonstrated that peripheral blood leucocytes of the nurse shark (Ginglymostoma cirrhatum) are capable of in vitro chemotaxis. In the present study we have identified the chemotactic cells as the shark granulocyte and monocyte-macrophage. Chemotaxis assays were set up in blind well chambers.
S H, Smith, S D, Obenauf, D S, Smith
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Analytical Modelling of Low-salinity Waterflooding with Fines Migration
Proceedings, 2016Low-salinity waterflood is presently one of the most cost-effective EOR methods. The governing system of equations for oil and water flow with changing water salinity is derived. So-called mechanistic model is developed. This model accounts for two EOR factors: A) fines migration, which is induced by salinity variation and reduces the relative ...
Borazjani, S. +5 more
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Efficient fine-grain thread migration with active threads
Proceedings of the First Merged International Parallel Processing Symposium and Symposium on Parallel and Distributed Processing, 2002Thread migration is established as a mechanism for achieving dynamic load sharing. However, fine-grained migration has not been used due to the high thread and messaging overheads. This paper describes a fine-grained thread migration system whose extensible event mechanism permits an efficient interface between threads and communications without ...
Boris Weissman +3 more
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Entrapment or Piping of Fines During Migration
1998In the previous chapters we have discussed the release of fine particles from the pore surface to the liquid stream flowing through the porous medium. These fine particles while flowing with the liquid phase, can either readhere to the pore surface or flow without capture or get entrapped at the pore constrictions.
Kartic C. Khilar, H. Scott Fogler
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Parallel Objects Migration: A Fine Grained Approach to Load Distribution
Journal of Parallel and Distributed Computing, 2000Migration is a fundamental mechanism for achieving load balancing and locality of references in parallel and distributed applications. This paper presents the migration mechanisms implemented in the Parallel Objects (PO) programming environment, which assumes a fine granularity in allocation and reallocation of objects.
Antonio Corradi +2 more
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Permeability Impairment Due to Fines Migration in Sandstones
SPE Formation Damage Control Symposium, 1986ABSTRACT In a previous publication1 critera were derived for predicting the onset of fines release in sandstones. The present paper describes quantitatively the behavior of the sandstone after the fines have been released. The entrapment of fines at pore throats is modelled using a statistical approach and general population balance ...
M.M. Sharma, Y.C. Yortsos
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Fines Migration in Aquifers and Oilfields: Laboratory and Mathematical Modelling
2018Migration of natural reservoir fines is one of the main causes of formation damage in oil and gas fields. Yet, fines migration can be employed for enhancing reservoir sweep and water production control. Permeability decline due to fine particles’ detachment from reservoir rocks, mobilisation, migration and straining has been widely reported in the ...
Yang, Y. +7 more
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The use of nanotechnology to prevent and mitigate fine migration: a comprehensive review
Reviews in Chemical Engineering, 2022Alireza Sadeghein, Siavash Riahi
exaly
CFD-DEM modelling of the migration of fines in suspension flow through a solid packed bed
Chemical Engineering Science, 2021Yansong Shen, Shuai Wang, Zhouzun Xie
exaly