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Non-monotonic swelling of surface grafted hydrogels induced by pH and/or salt concentration
(American Institute Of Physics, 2014-09-30)
We use a molecular theory to study the thermodynamics of a weak-polyacid hydrogel film that is chemically grafted to a solid surface. We investigate the response of the material to changes in the pH and salt concentration ...
Electrostatic turbulence driven by high magnetohydrodynamic activity in Tokamak Chauffage Alfven Bresilien
(AMER INST PHYSICS, 2008)
In Tokamak Chauffage Alfven Bresilien [R. M. O. Galvao , Plasma Phys. Controlled Fusion 43, 1181 (2001)], high magnetohydrodynamic (MHD) activity may appear spontaneously or during discharges with a voltage biased electrode ...
Bicoherence in electrostatic turbulence driven by high magnetohydrodynamic activity in Tokamak Chauffage Alfven Bresilien
(AMER INST PHYSICS, 2009)
During some discharges in Tokamak Chauffage Alfven Bresilien [R. M. O. Galvao et al., Plasma Phys. Controlled Fusion 43, 1181 (2001)] high magnetohydrodynamic activity may appear with a peaked frequency spectrum. Whenever ...
Electrostatic patterning of a silica surface: A new model for charge build-up on a dielectric solid
(Amer Chemical SocWashingtonEUA, 2005)
Estudio de fallas en fuentes de alimentación conmutadas debido al estrés de los capacitores electrolíticos
(Universidad Nacional de Misiones. Facultad de Ingeniería. Secretaría de Ciencia y Técnica, 2019-06-21)
Este trabajo enmarcado en un proyecto de investigación acreditado, tuvo como objetivo determinar las principales causas de fallas en fuentes conmutadas o switching. En un 83% de los casos analizados los resultados empíricos ...
Método de baixo custo para reutilização de máscaras N95 através de recarga eletrostática
(Universidade Federal de Santa MariaBrasilFísicaUFSMPrograma de Pós-Graduação em FísicaCentro de Ciências Naturais e Exatas, 2023-07-28)
Due to the Covid-19 pandemic, a disease caused by the Sars-CoV-2 virus, the
use of personal protective masks has increased dramatically. The World Health
Organization (WHO) recommends the PFF2 model, equivalent to the ...
Construcción de un generador de Van de Graaff de 200kVcd
(Universidad Autónoma de Occidente, 2006-01)
En este artículo se presentan los resultados obtenidos de la construcción de un generador de Van der Graaff de 200kVcd, realizado en el Laboratorio de Alta Tensión de la Universidad del Valle. La generación de los voltajes ...
Estudo do desempenho de um precipitador eletrostático operando na captura de partículas submicrométricas e nanométricas.
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQ, 2005-05-24)
The removal of submicron particles from gaseous streams is becoming an
increasingly important operation, both in industrial (nanotechnology) as well as in
occupational (inhalation of particula te matter) applications. Among ...
Corona-Treated Polyethylene Films Are Macroscopic Charge Bilayers
(Amer Chemical SocWashingtonEUA, 2013)
Water Vapor Adsorption Effect on Silica Surface Electrostatic Patterning
(Amer Chemical SocWashingtonEUA, 2008)