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A mixed-integer convex model for the optimal placement and sizing of distributed generators in power distribution networks
(2021-01-11)
The optimal placement and sizing of distributed generators is a classical problem in power distribution networks that is usually solved using heuristic algorithms due to its high complexity. This paper proposes a different ...
A mixed-integer conic formulation for optimal placement and dimensioning of DGs in DC distribution networks
(2021-01-14)
The problem of the optimal placement and dimensioning of constant power sources (i.e., distributed generators) in electrical direct current (DC) distribution networks has been addressed in this research from the point of ...
Modeling of Asphalt Pavement Considering the Application of Empirical and Mechanistic Design Methodologies
(2020)
Road infrastructure projects are essential for the economic growth and development of a country, because they provide great advantages in the mobility of people, as well as goods or consumer products, thus making it possible ...
Sequential spectral changes of Meloidogyne enterolobii-infected plants using two dimensional correlation IR spectroscopy
(2020-10-29)
In this work, we found that tomato and guava plants infected with Meloidogyne enterolobii showed different Fourier-transformed infrared spectral patterns compared to non-infected plants. Additionally, by using two-dimensional ...
On the convergence of the power flow methods for DC networks with mesh and radial structures
(2021-02)
The convergence analysis of the power flow methodologies for direct current (dc) electrical networks is addressed in this paper. The Banach fixed-point theorem is employed to prove the convergence and uniqueness in the ...
Simultaneous Minimization of Energy Losses and Greenhouse Gas Emissions in AC Distribution Networks Using BESS
(2021-04-22)
The problem of the optimal operation of battery energy storage systems (BESSs) in AC grids is addressed in this paper from the point of view of multi-objective optimization. A nonlinear programming (NLP) model is presented ...
Efficient operative cost reduction in distribution grids considering the optimal placement and sizing of d-statcoms using a discrete-continuous vsa
(2021-03-02)
The problem of reactive power compensation in electric distribution networks is addressed in this research paper from the point of view of the combinatorial optimization using a new discrete-continuous version of the vortex ...
Dynamic reactive power compensation in power systems through the optimal siting and sizing of photovoltaic sources
(2021-05-11)
The problem of the optimal placement and sizing of photovoltaic power plants in electrical power systems from high- to medium-voltage levels is addressed in this research from the point of view of the exact mathematical ...
Representación de la historia de España por medio de la filatelia. Estudio de los sellos diseñados por Gallego y Rey
(2020)
Se presenta un análisis pormenorizado de todos los sellos postales españoles elaborados por los humoristas gráficos Gallego y Rey, los cuales pretendieron reflejar la historia española. Este peculiar tipo de producto ...
Las cooperativas rurales una oportunidad para repensar el rol del Estado frente a los impactos de la regulación de semillas en Colombia
(2020-11-11)
El presente artículo analiza los diversos factores que inciden en la situación de vulnerabilidad en el que se encuentra el sector rural en Colombia, la cual se ha visto reforzada por el régimen de certificación de semillas ...
Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.