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Robust estimation of uncertain linear systems using a moving horizon approach
(2013-04-15)
Abstract: Since the famous contributions of Kalman at the middle of the last century, the state estimation became a special issue related to the control theory. Countless modern control strategies, or statespace control ...
Theoretical study of the Grotthuss mechanism for hydroxide ions in a homogeneous membrane used in alkaline fuel cells
(2020-08-30)
Se realizaron simulaciones computacionales para analizar y caracterizar el transporte por difusión estructural a través de la membrana de intercambio aniónico (AEM) funcionalizada de poliestireno-bloque-poli(etileno-ran- ...
A set-theoretic approach to the observability of dynamical systems with non-ideal sensors
(2020-03-19)
Esta disertación propone un nuevo enfoque para la observabilidad de sistemas dinámicos basado en herramientas de la teoría de conjuntos. Este enfoque posee las ventajas de tener en cuenta la incertidumbre de las mediciones, ...
Desarrollo de un modelo probabilístico de flujo de materia y transporte de escalares en yacimientos de hidrocarburos sometidos a inyección de nanofluidos
(2020-10-20)
During the last decade, the injection of nanofluids in hydrocarbon fields has been of increasing interest, as an enhanced oil recovery (EOR) technique. Specifically, when applying this technique, search among others, i.) ...
In-situ characterization of the reaction progress of the fluid catalytic cracking reactions by laser diagnostic techniques
(2019-01-14)
Sophisticated analytical techniques, such as mass spectrometry and high-performance liquid chromatography (HPLC), can be used to measure aromatic and saturate contents of the Fluid Catalytic Cracking (FCC) feedstock and ...
Dry sliding metals process modelling: dynamical system paradigm
(2018-11-13)
The progressive damage and material loss occurring on a component surface as a result of its movement relative to the adjacent working parts has profound economic consequences (substitution costs, inactivity of machines, ...
Nanomaterial for the control of rheological properties of hydrolyzed polyacrylamide based polymeric solutions
(Universidad Nacional de Colombia, 2020-10-15)
Enhanced oil recovery (EOR) processes were developed as a strategy to extend the productivity of mature reservoirs. Polymer flooding-based HPAM is the EOR process more implemented due to its relatively low cost and operational ...
Laser-induced breakdown spectroscopy (LIBS) for analysis of precious metals in minerals
(2017-09-15)
The use of LIBS to quantify naturally-occurring gold and silver was investigated with the purpose of exploring its future application as an in situ and online monitoring technique for the precious metal mining industry. ...
Modelado de bioprocesos: relaciones matemáticas entre el medioambiente y el material biológico
(2017)
En esta tesis se presenta una propuesta para el modelado de bioprocesos utilizando modelos Semifísicos de Base Fenomenológica (MSBF). Para llegar a esta propuesta se realizó una revisión de literatura sobre las diferentes ...
Molecular dynamics methodology for the evaluation of the chemical alteration of wettability of sandstones
(2018-04-17)
A common practice in the petroleum industry is the waterflooding or another liquids into the formation, to extract the hydrocarbon contained in small pores, through of enhanced/recovery methods (IOR/EOR). In processes of ...