Jorge Luis Litardo Velásquez - Academia.edu (original) (raw)
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Papers by Jorge Luis Litardo Velásquez
TecnoLógicas, 2020
La simulación del proceso de destilación binaria representa un problema interesante debido a la d... more La simulación del proceso de destilación binaria representa un problema interesante debido a la dinámica compleja del sistema, las interacciones termodinámicas en cada etapa de equilibrio y la interacción entre las corrientes internas y externas. En este trabajo se evalúa el funcionamiento y simulación de una torre de destilación continua y una de destilación discontinua. La simulación se realizó mediante los métodos McCabe-Thiele y riguroso, y empleando la ecuación de estado cúbica modificada Forero-Velázquez-Huron-Vidal (FVHV) propuesta inicialmente por Peng-Robinson y el modelo de actividad No-Random-Two-Liquid (NRTL). La simulación predijo la composición de los productos, el número de etapas y la etapa de alimentación. La torre de destilación cuenta con 9 etapas de equilibrio reales, por FVHV se calcularon 8 etapas y por NRTL 9, con ambos modelos se encontró que la etapa de alimentación óptima era el plato 7. En la torre de destilación discontinua se realizaron dos ensayos, con ...
Información tecnológica, 2019
Energies, 2019
The continuously increasing complexity of modern and sustainable power and energy systems leads t... more The continuously increasing complexity of modern and sustainable power and energy systems leads to a wide range of solutions developed by industry and academia. To manage such complex system-of-systems, proper engineering and validation approaches, methods, concepts, and corresponding tools are necessary. The Smart Grid Architecture Model (SGAM), an approach that has been developed during the last couple of years, provides a very good and structured basis for the design, development, and validation of new solutions and technologies. This review therefore provides a comprehensive overview of the state-of-the-art and related work for the theory, distribution, and use of the aforementioned architectural concept. The article itself provides an overview of the overall method and introduces the theoretical fundamentals behind this approach. Its usage is demonstrated in several European and national research and development projects. Finally, an outlook about future trends, potential adapt...
La reforma Constitucional de 1991 evaluo y reformo el esquema de prestacion de servicios publicos... more La reforma Constitucional de 1991 evaluo y reformo el esquema de prestacion de servicios publicos domiciliarios. Alli se llego a la conclusion que estos servicios venian siendo prestados casi totalmente por el Estado (Nacion, Departamentos, Municipios), esto es, de manera monopolica y con muy bajos indices de eficiencia. Ademas, el costo era subsidiado. Por ello se establecio en la Constitucion que los servicios publicos domiciliarios de acueducto y alcantarillado eran un derecho fundamental y por ello toda la poblacion tenia derecho a que estos le fueran prestados con criterios de eficiencia basados en cantidad, calidad y continuidad adecuada. Establecio que los mismos podrian ser prestados por cualquier persona publica, privada o mixta cumpliendo con el mismo regimen. Establecio por ultimo que se deberian prestar con criterios de autocosteabilidad. Asi mismo le dio un plazo de tres (3) anos al gobierno nacional para que presentara ante el Congreso un proyecto de Ley que reglamentara las condiciones en que las empresas y los usuarios entrarian a ejercer los deberes y derechos en lo pertinente a la prestacion de los servicios publicos domiciliarios.
JIMD reports, 2012
The Hyperornithinemia-Hyperammonemia-Homocitrullinuria (HHH) syndrome is a disorder of the urea c... more The Hyperornithinemia-Hyperammonemia-Homocitrullinuria (HHH) syndrome is a disorder of the urea cycle and ornithine degradation pathway caused by mutations in the mitochondrial ornithine transporter, ORNT1 (SLC25A15). In general, the majority of patients with HHH syndrome come to medical attention during infancy or early school years with symptoms such as learning disabilities, changes in cognitive development, spasticity, or liver dysfunction. In this report, we describe a 35-year-old male of Indian descent who was diagnosed with HHH syndrome after he presented to the emergency room with gastroenteritis, disorientation, and slurred speech. Molecular analysis revealed that this patient was heterozygous for two ORNT1 mutations, p.[Gly220Arg(+)Arg275X] (c.[658G>A(+)823C>T]) that had been previously reported in homozygous probands who presented during the first year of life. Cellular studies revealed that the ORNT1 p.Gly220Arg mutation was nonfunctional but targeted to the mitoch...
Anales de la Facultad de Medicina, 2014
Investigaciones …, 2009
... Según la Chemical Engineering Education existen numerosas empresas pequeñas que usan macros d... more ... Según la Chemical Engineering Education existen numerosas empresas pequeñas que usan macros de Excel® desarrollados por sus empleados para resolver problemas que se pueden solucionar mediante el uso de simuladores comerciales de alto costo (Builes y Calle ...
Bioresource Technology, 2009
European Scientific Journal, 2017
In the daily and hectic development of our activities we rarely reserve time to think, rethink, a... more In the daily and hectic development of our activities we rarely reserve time to think, rethink, and reflect on the results obtained from our actions, and make crucial decisions about how we can modify the way to change our own actions and with that, transform the context where our professional activity is exercised. A methodological model called the systematization of educational experiences is precisely what gives us this space for collaborative dialogue, and self-reflection and with others. The systematization of experiences is described as a research process where the experiences of the actors are recovered through reflection, dialogue and the reconstruction of events with the purpose of collecting awareness and improving their practices. Present work shows an experience with university professors in a strengths-based training course of critical use of the media. Some of the elements that were used for the construction of the learning and recovery experience were: the logbook, th...
TecnoLógicas, 2020
La simulación del proceso de destilación binaria representa un problema interesante debido a la d... more La simulación del proceso de destilación binaria representa un problema interesante debido a la dinámica compleja del sistema, las interacciones termodinámicas en cada etapa de equilibrio y la interacción entre las corrientes internas y externas. En este trabajo se evalúa el funcionamiento y simulación de una torre de destilación continua y una de destilación discontinua. La simulación se realizó mediante los métodos McCabe-Thiele y riguroso, y empleando la ecuación de estado cúbica modificada Forero-Velázquez-Huron-Vidal (FVHV) propuesta inicialmente por Peng-Robinson y el modelo de actividad No-Random-Two-Liquid (NRTL). La simulación predijo la composición de los productos, el número de etapas y la etapa de alimentación. La torre de destilación cuenta con 9 etapas de equilibrio reales, por FVHV se calcularon 8 etapas y por NRTL 9, con ambos modelos se encontró que la etapa de alimentación óptima era el plato 7. En la torre de destilación discontinua se realizaron dos ensayos, con ...
Información tecnológica, 2019
Energies, 2019
The continuously increasing complexity of modern and sustainable power and energy systems leads t... more The continuously increasing complexity of modern and sustainable power and energy systems leads to a wide range of solutions developed by industry and academia. To manage such complex system-of-systems, proper engineering and validation approaches, methods, concepts, and corresponding tools are necessary. The Smart Grid Architecture Model (SGAM), an approach that has been developed during the last couple of years, provides a very good and structured basis for the design, development, and validation of new solutions and technologies. This review therefore provides a comprehensive overview of the state-of-the-art and related work for the theory, distribution, and use of the aforementioned architectural concept. The article itself provides an overview of the overall method and introduces the theoretical fundamentals behind this approach. Its usage is demonstrated in several European and national research and development projects. Finally, an outlook about future trends, potential adapt...
La reforma Constitucional de 1991 evaluo y reformo el esquema de prestacion de servicios publicos... more La reforma Constitucional de 1991 evaluo y reformo el esquema de prestacion de servicios publicos domiciliarios. Alli se llego a la conclusion que estos servicios venian siendo prestados casi totalmente por el Estado (Nacion, Departamentos, Municipios), esto es, de manera monopolica y con muy bajos indices de eficiencia. Ademas, el costo era subsidiado. Por ello se establecio en la Constitucion que los servicios publicos domiciliarios de acueducto y alcantarillado eran un derecho fundamental y por ello toda la poblacion tenia derecho a que estos le fueran prestados con criterios de eficiencia basados en cantidad, calidad y continuidad adecuada. Establecio que los mismos podrian ser prestados por cualquier persona publica, privada o mixta cumpliendo con el mismo regimen. Establecio por ultimo que se deberian prestar con criterios de autocosteabilidad. Asi mismo le dio un plazo de tres (3) anos al gobierno nacional para que presentara ante el Congreso un proyecto de Ley que reglamentara las condiciones en que las empresas y los usuarios entrarian a ejercer los deberes y derechos en lo pertinente a la prestacion de los servicios publicos domiciliarios.
JIMD reports, 2012
The Hyperornithinemia-Hyperammonemia-Homocitrullinuria (HHH) syndrome is a disorder of the urea c... more The Hyperornithinemia-Hyperammonemia-Homocitrullinuria (HHH) syndrome is a disorder of the urea cycle and ornithine degradation pathway caused by mutations in the mitochondrial ornithine transporter, ORNT1 (SLC25A15). In general, the majority of patients with HHH syndrome come to medical attention during infancy or early school years with symptoms such as learning disabilities, changes in cognitive development, spasticity, or liver dysfunction. In this report, we describe a 35-year-old male of Indian descent who was diagnosed with HHH syndrome after he presented to the emergency room with gastroenteritis, disorientation, and slurred speech. Molecular analysis revealed that this patient was heterozygous for two ORNT1 mutations, p.[Gly220Arg(+)Arg275X] (c.[658G>A(+)823C>T]) that had been previously reported in homozygous probands who presented during the first year of life. Cellular studies revealed that the ORNT1 p.Gly220Arg mutation was nonfunctional but targeted to the mitoch...
Anales de la Facultad de Medicina, 2014
Investigaciones …, 2009
... Según la Chemical Engineering Education existen numerosas empresas pequeñas que usan macros d... more ... Según la Chemical Engineering Education existen numerosas empresas pequeñas que usan macros de Excel® desarrollados por sus empleados para resolver problemas que se pueden solucionar mediante el uso de simuladores comerciales de alto costo (Builes y Calle ...
Bioresource Technology, 2009
European Scientific Journal, 2017
In the daily and hectic development of our activities we rarely reserve time to think, rethink, a... more In the daily and hectic development of our activities we rarely reserve time to think, rethink, and reflect on the results obtained from our actions, and make crucial decisions about how we can modify the way to change our own actions and with that, transform the context where our professional activity is exercised. A methodological model called the systematization of educational experiences is precisely what gives us this space for collaborative dialogue, and self-reflection and with others. The systematization of experiences is described as a research process where the experiences of the actors are recovered through reflection, dialogue and the reconstruction of events with the purpose of collecting awareness and improving their practices. Present work shows an experience with university professors in a strengths-based training course of critical use of the media. Some of the elements that were used for the construction of the learning and recovery experience were: the logbook, th...