Results 31 to 40 of about 7,130 (202)

Estudo da reologia e espessura do reboco de fluidos de perfuração: influência de dispersantes e umectante aniônicos Study of rheology and filter-cake thickness of drilling fluids: influence of anionic dispersants and surfactant

Cerâmica, 2006
Este trabalho teve como objetivo avaliar a influência de aditivos dispersantes e umectante aniônicos nas viscosidades aparente (VA) e plástica (VP), no volume de filtrado (VF) e na espessura do reboco (ER) de fluidos de perfuração á base de água e argila
K. V. Farias, L. V. Amorim, H. C. Ferreira, E. Pereira   +3 more
doaj   +1 more source

Influência de aditivos dispersantes nas propriedades de concretos refratários de Al2O3 e Al2O3-MgO Influence of dispersants in Al2O3 and Al2O3-MgO refractory castables

Cerâmica, 2004
O estado de dispersão das partículas constituintes da matriz de concretos apresenta uma influência direta no comportamento reológico desses materiais, determinando as técnicas que podem ser usadas para a sua aplicação.
I. R. de Oliveira, A. R. Studart, M. Innocentini, L. A. Nascimento, V. C. Pandolfelli   +4 more
doaj   +1 more source

Effects of chemical dispersants on feathers from Arctic seabirds [PDF]

, 2023
Chemical dispersion is an oil spill response strategy where dispersants are sprayed onto the oil slick to enhance oil dispersion into the water. However, accidental application could expose seabirds to dispersants, thereby negatively affecting their ...
Frank F. Rigét, Kim Gustavson, Mosbech, Anders, Wegeberg, Susse, Anders Mosbech, Nordam, Tor, Skancke, Jørgen, Fritt-Rasmussen, Janne, Paneeraq Kristensen, Linnebjerg, Jannie Fries, Gustavson, Kim, Jørgen Skancke, Tor Nordam, Susse Wegeberg, Rigét, Frank F., Jannie Fries Linnebjerg, Janne Fritt-Rasmussen, Kristensen, Paneeraq   +17 more
core   +1 more source

Biofilm dispersion [PDF]

Nature Reviews Microbiology, 2020
The formation of microbial biofilms enables single planktonic cells to assume a multicellular mode of growth. During dispersion, the final step of the biofilm life cycle, single cells egress from the biofilm to resume a planktonic lifestyle. As the planktonic state is considered to be more vulnerable to antimicrobial agents and immune responses ...
Kendra P. Rumbaugh, Karin Sauer
openaire   +2 more sources

Rheology of Titania Pigment Slurry

Applied Rheology, 2012
The influence of polymeric dispersants containing different functional groups on the suspension behaviour of titania pigment slurry was investigated. The dispersants chosen were polyacrylic acid and modified polyacrylamides including homo and copolymers ...
Farrokhpay Saeed
doaj   +1 more source

Niche Partitioning between Coastal and Offshore Shelf Waters Results in Differential Expression of Alkane and Polycyclic Aromatic Hydrocarbon Catabolic Pathways

mSystems, 2020
Marine oil spills can impact both coastal and offshore marine environments, but little information is available on how the microbial response to oil and dispersants might differ between these biomes.
Shawn M. Doyle, Genmei Lin, Maya Morales-McDevitt, Terry L. Wade, Antonietta Quigg, Jason B. Sylvan   +5 more
doaj   +1 more source

Effects of two oil dispersants on phototaxis and swimming behaviour of barnacle larvae

, 1997
The effects of two oil dispersants (Vecom B-1425 GL and Norchem OSD-570) mixed with diesel oil on the survival and behaviour of the stage II nauplii of the barnacle Balanus amphitrite were investigated.
Wu, RSS, P. K. S. Lam, R. S. S. Wu, B. S. Zhou, Zhou, BS, Lam, PKS   +5 more
core   +1 more source

Disperse hypergraphs

Combinatorics, Probability and Computing
Abstract For $\ell \geq 3$ , an $\ell$
Lior Gishboliner, Ethan Honest
openaire   +2 more sources

The Autoxidation of Alkenyl SuccinimidesMimics for Polyisobutenyl Succinimide Dispersants [PDF]

, 2019
Short chain alkenyl succinimides (ASIs) were synthesized and used as high purity chemical models to investigate the autoxidative degradation at 170 °C of polyisobutenyl succinimide dispersants (PIBSIs), a significant additive in automotive engine ...
Thomas J. Farmer (4769163), Duncan J. Macquarrie (1498171), Moray S. Stark (2237023), Jonathan E. Ruffell (7494563)   +3 more
core   +2 more sources

Genetics of dispersal [PDF]

Biological Reviews, 2017
ABSTRACTDispersal is a process of central importance for the ecological and evolutionary dynamics of populations and communities, because of its diverse consequences for gene flow and demography. It is subject to evolutionary change, which begs the question, what is the genetic basis of this potentially complex trait?
Saastamoinen, Marjo, Bocedi, Greta, Cote, Julien, Legrand, Delphine, Guillaume, Frédéric, Wheat, Christopher, Fronhofer, Emanuel, Garcia, Cristina, Henry, Roslyn, Husby, Arild, Baguette, Michel, Bonte, Dries, Coulon, Aurélie, Kokko, Hanna, Matthysen, Erik, Niitepõld, Kristjan, Nonaka, Etsuko, Stevens, Virginie Marie, Travis, Justin, Donohue, Kathleen, Bullock, James, del Mar Delgado, Maria   +21 more
openaire   +9 more sources