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    • Smart UTB: An IoT platform for Smart Campus 

      Castellanos Acuña, Leonardo; Narváez, Ray; Magre Colorado, Luz Alejandra; González, María José (Cartagena de Indias, 2021-09-29)
      The Internet of Things (IoT) aims to create applications to improve people’s quality of life using novel protocols, sensor networks, cloud computing, middlewares and other technologies. These applications can be used in ...

    • Smart Water Grids and Digital Twin for the Management of System Efficiency in Water Distribution Networks 

      Ramos, Helena M.; Kuriqi, Alban; Besharat, Mohsen; Creaco, Enrico; Tasca, Elias; Coronado-Hernández, Oscar E.; Pienika, Rodolfo; Iglesias-Rey, Pedro (Cartagena de Indias, 2023-03-15)
      One of the main factors contributing to water scarcity is water loss in water distribution systems, which mainly arises from a lack of adequate knowledge in the design process, optimization of water availability, and ...

    • Smoothing of Robotic Navigation Trajectories, Based on a Tessellation Generated Weighted Skeleton, Based on Wavefront Dilation and Collisions 

      Ladino, I.; Penagos, O.; Sáenz-Cabezas, B.; Pastrana, Y. (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 ...

    • Social representations of media reception during the COVID-19 lockdown in Colombia: from messages to meanings 

      Garcés Prettel, Miguel Efrén; Navarro-Díaz, Luis Ricardo; Jaramillo-Echeverri, Luis Guillermo; Santoya-Montes, Yanin (Cartagena de Indias, 2020-07-14)
      Las investigaciones recientes sobre la COVID-19 se han centrado en los efectos de esta pandemia en la salud pública, así como en los controles de bio seguridad y sus implicaciones socioeconómicas. El presente estudio ...

    • Soft-computing approaches for rescheluding problems in a manufacturing industry 

      Acevedo Chedid, Jaime; Grice Reyes, Jennifer; Ospina-Mateus, Holman; Salas-Navarro, Katherinne; Santander-Mercado, Alcides; Sankar Sana, Shib (Cartagena de Indias, 2020-03-02)
      Flexible manufacturing systems as technological and automated structures have a high complexity for scheduling. The decision-making process is made difficult with interruptions that may occur in the system and these problems ...

    • Software to Assist Visually Impaired People During the Craps Game Using Machine Learning on Python Platform 

      Hernández Díaz, Nicolás; Peñaloza, Yersica C.; Ríos, Y. Yuliana; Magre Colorado, Luz A. (Cartagena de Indias, 2022-03-30)
      Pattern recognition is a prominent area of research in computer vision, where different methods have been proposed in the last 50 years. This work presents the development of a Python API to identify the result of two ...

    • Solar Photovoltaic Integration in Monopolar DC Networks via the GNDO Algorithm 

      Montoya, Oscar Danilo; Gil-González, Walter; Grisales-Noreña, Luis Fernando (Cartagena de Indias, 2022-08-05)
      This paper focuses on minimizing the annual operative costs in monopolar DC distribution networks with the inclusion of solar photovoltaic (PV) generators while considering a planning period of 20 years. This problem is ...

    • Solid-state photocatalysis for plastics abatement: A review 

      Castilla Caballero, Deyler; Sadak, Omer; Martínez-Díaz, Jolaine; Martínez-Castro, Valentina; Colina-Márquez, Jose; Machuca-Martínez, Fiderman; Hernandez-Ramírez, Aracely; Vazquez-Rodriguez, Sofia (Cartagena de Indias, 2022-06-17)
      The COVID-19 pandemic has caused a dramatic increase in plastic wastes associated with the use of single-use masks, gloves, gowns, and other personal protective equipment (PPE). The accumulation of PPE, especially single-use ...

    • Solution of the optimal power flow problem in direct current grids applying the hurricane optimization algorithm 

      Arteaga, J.A.; Montoya, O.D.; Grisales-Noreña, Luis Fernando (Cartagena de Indias, 2019-09-24)
      The Colombian electrical power system is being transformed by the large-scale integration of energy storage systems and renewable energy resources to the power system. These technologies can be integrated using alternating ...

    • Solution of the Optimal Reactive Power Flow Problem Using a Discrete-Continuous CBGA Implemented in the DigSILENT Programming Language 

      Bernal-Romero, David Lionel; Montoya, Oscar Danilo; Arias-Londoño, Andres (Cartagena de Indias, 2021-11-12)
      The problem of the optimal reactive power flow in transmission systems is addressed in this research from the point of view of combinatorial optimization. A discrete-continuous version of the Chu & Beasley genetic algorithm ...

    • Solving the Optimal Reactive Power Dispatch Problem through a Python-DIgSILENT Interface 

      Sánchez-Mora, Martin M.; Bernal-Romero, David Lionel; Montoya, Oscar Danilo; Villa Acevedo, Walter M.; López Lezama, Jesús M. (Cartagena de Indias, 2022-07-25)
      The Optimal Reactive Power Dispatch (ORPD) problem consists of finding the optimal settings of reactive power resources within a network, usually with the aim of minimizing active power losses. The ORPD is a nonlinear and ...

    • Spatio Temporal Filtering of Multi-lead ECG Signals for Atrial Arrhythmia Classification 

      Giraldo-Guzman, Jader; Contreras-Ortiz, Sonia H.; Castells, Francisco; Kotas, Marian (Cartagena de Indias, 2021-10)
      Atrial fibrillation (AF) is the most common cardiac arrhythmia and increases the risk of suffering stroke. Some people with AF do not have symptoms, so, its diagnosis can be difficult, especially in early stages of the ...

    • Spatio-Temporal Filtering for Evoked Potentials Detection 

      Piela M.; Kotas, Marian; Ortiz S.H.C. (Springer, 2020)
      We propose the new application of the spatio-temporal filtering (STF) method, which is a detection of visual evoked potentials applied to brain-computer interfaces (BCI). STF aims in creating a new, enhanced channel basing ...

    • Speckle free optical watermarking based on pseudo-random phase encoding 

      Patino A.; Altamar Mercado, Hernando; Martínez-Santos, Juan Carlos (Institute of Electrical and Electronics Engineers Inc., 2016)
      Watermarking is a process of embedding copiright information into an image to verify the ownership without any kind of corruption. In optical applications, the usage of diffusers is required to obtain a homogeneously ...

    • Speckle interferometry single-shot applications with multiple carrier-fringe information 

      Sánchez Barrera, Estiven (Cartagena de Indias, 2023-06-15)
      The need for robust equipment that allows identifying defects or measuring small displacements in a harsh environment has been a requirement in the aeronautical and principally in the Oil & Gas industry. In this field, ...

    • Speckle reduction in echocardiography by temporal compounding and anisotropic diffusion filtering 

      Giraldo-Guzmán J.; Porto-Solano O.; Cadena-Bonfanti A.J.; Contreras Ortiz, Sonia Helena (SPIE, 2015)
      Echocardiography is a medical imaging technique based on ultrasound signals that is used to evaluate heart anatomy and physiology. Echocardiographic images are affected by speckle, a type of multiplicative noise that ...

    • Speed of International Expansion: The Mediating Role of Network Resources Mobilisation 

      Bolívar, Luis Miguel; Roldán, José Luis; Castro-Abancéns, Ignacio; Casanueva, Cristóbal (Cartagena de Indias, 2022-08)
      Multinational Enterprises (MNEs) are often under pressure to expand at the highest possible speed in international markets. They therefore embed themselves in networks of alliances where they can access resources in the ...

    • SPUD: Simultaneous phase unwrapping and denoising algorithm for phase imaging 

      Pineda, J.; Bacca, J.; Meza, J.; Romero, L.A.; Arguello, H.; Marrugo Hernández, Andrés Guillermo (Cartagena de Indias, 2020-05-01)
      Recent methods for phase unwrapping in the presence of noise include denoising algorithms to filter out noise as a preprocessing stage. However, including a denoising stage increases the overall computational complexity ...

    • Stability Analysis of Single-Phase Low-Voltage AC Microgrids with Constant Power Terminals 

      Montoya O.D.; Garces A.; Avila-Becerril S.; Espinosa-Pérez, G.; Serra F.M. (Institute of Electrical and Electronics Engineers Inc., 2019)
      This express brief presents the stability analysis of single-phase microgrids (SP-MG) operating under master-slave connection with constant power terminals. The SP-MG is composed of linear elements, nonlinear loads, and ...

    • Stabilization of MT-HVDC grids via passivity-based control and convex optimization 

      Montoya, Oscar Danilo; Gil-González, Walter; Garcés, Alejandro; Serra, Federico; Hernandez, Jesus C. (Cartagena de Indias, 2021-04-30)
      This paper presents a model for stabilizing multi-terminal high voltage direct-current (MT-HVDC) networks with constant power terminals (CPTs) interfaced with power electronic converters. A hierarchical structure of ...

      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.