Buscar
Mostrando ítems 31-40 de 1958
Modeling retention and selectivity as a function of pH and column temperature in liquid chromatography
(American Chemical Society, 2006-08)
In reversed-phase liquid chromatography (RPLC), the retention of weak acids and bases is a sigmoidal function of the mobile-phase pH. Therefore, pH is a key chromatographic variable to optimize retention and selectivity. ...
Effect of temperature on the chromatographic retention of ionizable compounds: II. Acetonitrile–water mobile phases
(Elsevier Science, 2005-06)
The retentive behavior of weak acids and bases in reversed-phase liquid chromatography (RPLC) upon changes in column temperature has been theoretically and experimentally studied. The study focuses on examining the temperature ...
Point of zero charge as a factor to control biofilm formation of Pseudomonas aeruginosa in sol-gel derivatized aluminum alloy plates
(Elsevier, 2014-06)
The hospital environment is particularly susceptible to contamination by bacterial pathogens that grow on surfaces as biofilms. An increased risk of disease may be a direct consequence of their formation. Understanding ...
The effect of caffeine in animal models of learning and memory
(Elsevier Science BvAmsterdamHolanda, 1999)
Evaluation of Different Retention Systems on a Distal Extension Removable Partial Denture Associated With an Osseointegrated Implant
(Lippincott Williams & Wilkins, 2010-05-01)
The aim of this study was to evaluate the biomechanical behavior of a mandibular distal extension removable partial denture (DERPD) associated with an implant and different retention system, by bidimensional finite element ...
Evaluation of Different Retention Systems on a Distal Extension Removable Partial Denture Associated With an Osseointegrated Implant
(Lippincott Williams & Wilkins, 2010-05-01)
The aim of this study was to evaluate the biomechanical behavior of a mandibular distal extension removable partial denture (DERPD) associated with an implant and different retention system, by bidimensional finite element ...
Water retention capacity in soils of the Serra do Mar, SPCapacidade de retenção de água em solos da Serra do Mar, SP
(Instituto Geológico, Secretaria do Meio Ambiente, São Paulo, 2015)
Behavior of a water Ferrasol under agroforestry systems in extreme south of the state of Sao Paulo, Brazil
(Fundacion General Univ Politecnica Madrid, 2014-01-01)
The characterization and quantification of the soil water retention, representing the relationship between the water content and energy that takes place is essential to study the relationships between the soil and the ...