Productos de investigación
Recent Submissions
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Two Case Reports of Neuropsychological Functioning in Congenital Insensitivity to Pain with Anhidrosis (CIPA)
(Cartagena de Indias, 2020-09-27)Individuals with congenital insensitivity to pain with anhidrosis (CIPA) are reported to have intellectual disability but to our knowledge, no detailed study about neuropsychological functioning of this condition has ever ... -
Transient phenomena generated in emptying operations in large-scale hydraulic pipelines
(Cartagena de Indias, 2020-08-18)Air pockets generated during emptying operations in pressurized hydraulic systems cause significant pressure drops inside pipes. To avoid these sudden pressure changes, one of the most widely used methods involves the ... -
Thermal and Morphological Characterization of Native and Plasticized Starches of Sweet Potato (Ipomoea batatas) and Diamante Yam (Dioscorea rotundata)
(Cartagena de Indias, 2020-09-18)The objective of this study is to determine the morphological, physicochemical, and thermal properties of starches from two species of tubers, Ipomoea batatas (SP) and Dioscorea rotundata (DY), as well as the influence of ... -
The Kriging integration method applied to the boundary element analysis of Poisson problems
(Cartagena de Indias, 2020)A novel efficient technique is presented for the evaluation of domain integrals that appear in the boundary element method (BEM). Herein, the source term is approximated with the use of radial basis functions, as in the ... -
Smoothing of Robotic Navigation Trajectories, Based on a Tessellation Generated Weighted Skeleton, Based on Wavefront Dilation and Collisions
(Cartagena de Indias, 2020-10-08)Discretization processes adapted to robotic configuration spaces designed to limit the possible positions and movements of a robot in a continuous environment, have been based mainly on four methods for robotic motion ... -
A second-order cone programming reformulation of the economic dispatch problem of bess for apparent power compensation in ac distribution networks
(Cartagena de Indias, 2020-10-14)The problem associated with economic dispatch of battery energy storage systems (BESSs) in alternating current (AC) distribution networks is addressed in this paper through convex optimization. The exact nonlinear programming ... -
Automated corneal endothelium image segmentation in the presence of cornea guttata via convolutional neural networks
(Cartagena de Indias, 2020-08)Automated cell counting in in-vivo specular microscopy images is challenging, especially in situations where single-cell segmentation methods fail due to pathological conditions. This work aims to obtain reliable cell ... -
Análisis de la acreditación de calidad en programas de ingeniería industrial y los resultados en las pruebas nacionales estandarizadas, en Colombia
(Cartagena de IndiasCampus Tecnológico, 2020-02)El presente artículo presenta un análisis relacional entre las acreditaciones universitarias sobre calidad en programas de ingeniería industrial y el resultado en las pruebas estandarizadas de la educación superior en ... -
A mixed-integer nonlinear programming model for optimal reconfiguration of DC distribution feeders
(Cartagena de Indias, 2020-08-27)This paper deals with the optimal reconfiguration problem of DC distribution networks by proposing a new mixed-integer nonlinear programming (MINLP) formulation. This MINLP model focuses on minimising the power losses in ... -
A Mathematical Model for the Optimization of the Non-metallic Mining Supply Chain in the Mining District of Calamarí-Sucre (Colombia)
(Cartagena de Indias, 2020-10-08)This article presents a mathematical model of the Supply chain of non-metallic mining. The model considers uncertainty scenarios in materials, elements for capacity planning in a multilevel chain and with multiple products. ... -
On the Matricial Formulation of Iterative Sweep Power Flow for Radial and Meshed Distribution Networks with Guarantee of Convergence
(Cartagena de Indias, 2020-08-21)This paper presents a general formulation of the classical iterative-sweep power flow, which is widely known as the backward–forward method. This formulation is performed by a branch-to-node incidence matrix with the main ... -
Understanding motorcyclist-related accidents in Colombia
(Cartagena de IndiasCampus Tecnológico, 2020-02-11)In 2016, Colombia’s position regarding motorcyclist fatalities per 100,000 inhabitants was tenth worldwide and second in South America. In the seven years from 2012-2018, the proportion of deceased and injured motorcyclists ... -
The use of infrared spectroscopy and machine learning tools for detection of Meloidogyne infestations
(Cartagena de Indias, 2020-08-01)Plant parasitic nematodes are generally soilborne pathogens that attack plants and cause economic losses in many crops. The infested plants show nonspecific symptoms or, often, are symptomless; therefore, diagnosis is ... -
Simplified mathematical model for computing draining operations in pipelines of undulating profiles with vacuum air valves
(Cartagena de Indias, 2020-09-11)The draining operation involves the presence of entrapped air pockets, which are expanded during the phenomenon occurrence generating drops of sub-atmospheric pressure pulses. Vacuum air valves should inject enough air to ... -
Second-order cone approximation for voltage stability analysis in direct-current networks
(Cartagena de Indias, 2020-09-24)In this study, the voltage stability margin for direct current (DC) networks in the presence of constant power loads is analyzed using a proposed convex mathematical reformulation. This convex model is developed by employing ... -
Seasonality effect analysis and recognition of charging behaviors of electric vehicles: A data science approach
(Cartagena de Indias, 2020-09-20)Electric vehicles (EVs) presence in the power grid can bring about pivotal concerns regarding their energy requirements. EVs charging behaviors can be affected by several aspects including socio-economics, psychological, ... -
Predictive Analysis and Data Visualization Approach for Decision Processes in Marketing Strategies: A Case of Study
(Cartagena de Indias, 2020-10-08)In this paper, we perform a new strategy for recommender systems in online entertainment platforms. As a case of study, we analyzed the reading preferences based on users of Goodreads, a social network for readers, to ... -
Optimal selection and location of fixed-step capacitor banks in distribution networks using a discrete version of the vortex search algorithm
(Cartagena de Indias, 2020-09-19)This paper deals with the problem of the optimal selection of capacitor banks in electrical AC distribution systems for minimizing the costs of energy losses during a year of operation through a discrete version of the ... -
Control neuro-fuzzy para páncreas artificial desarrollo y validación in-silico
(Cartagena de Indias, 2020)La Diabetes Mellitus Tipo 1 (DMT1) es una de las enfermedades actuales más dañinas que afectan a personas de cualquier edad incluyendo niños desde el nacimiento. Las inyecciones de insulina exógena siguen siendo el tratamiento ... -
Mixed-integer programming model for transmission network expansion planning with Battery Energy Storage Systems (BESS)
(Cartagena de Indias, 2020-08-25)This article assesses the costs and benefits of incorporating battery energy storage systems (BESS) in transmission network expansion planning (TEP) over multiple time periods. We propose a mixed-integer programming model ...
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