Investigaciones: Envíos recientes
Mostrando ítems 401-420 de 1465
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An Implicit Formulation for Calculating Final Conditions in Drainage Maneuvers in Pressurized Water Installations
(Cartagena de Indias, 2022)Emptying processes are typical maneuvers that should be performed by water distribution companies for operation purposes. These processes involve a complex numerical analysis, since a set of algebraic and ordinary differential ... -
Towards gender equality in engineering programs : A case study
(Cartagena de IndiasCampus Tecnológico, 2022-05-31)The low participation of women in STEM fields is considered a critical issue in our society. We analyzed the student population by gender of the school of engineering at Universidad TecnolÓgica de Bolívar. We found that ... -
An Energy Management System for PV Sources in Standalone and Connected DC Networks Considering Economic, Technical, and Environmental Indices
(Cartagena de Indias, 2022)This research proposes an efficient energy management system for standalone and grid-connected direct current (DC) distribution networks that consider photovoltaic (PV) generation sources. A complete nonlinear programming ... -
Treatment for T1DM patients by a neuro-fuzzy inverse optimal controller including multi-step prediction
(Cartagena de IndiasCampus Tecnológico, 2022-07)Diabetes Mellitus is a serious metabolic condition for global health associations. Recently, the number of adults, adolescents and children who have developed Type 1 Diabetes Mellitus (T1DM) has increased as well as the ... -
An Application of Machine Learning to Estimate and Evaluate the Energy Consumption in an Office Room
(Cartagena de Indias, 2023)There are no exact criteria for the architecture of openings and windows in office buildings in order to optimize energy consumption. Due to the physical limitations of this renewable energy source and the lack of conscious ... -
ALPY PLUS - Adaptive Model Oriented to Pathway Planning in Virtual Learning System
(Cartagena de Indias, 2022)This paper presents an adaptive model called ALPY PLUS to enrich the dynamic planning of learning resources with user characteristics and those of her/his context, in order to provide a personalized course in a virtual ... -
Allocation of Renewable Energy Resources in Distribution Systems While considering the Uncertainty of Wind and Solar Resources via the Multi-Objective Salp Swarm Algorithm
(Cartagena de Indias, 2023)Given the importance of renewable energy sources in distribution systems, this article addresses the problem of locating and determining the capacity of these sources, namely, wind turbines and solar panels. To solve this ... -
Trends in the training of project managers in Colombia: Review of the offer at the level of specializations
(Cartagena de IndiasCampus Tecnológico, 2021-07-19)The purpose of this work was to investigate the offer of specialization programs in project management in Colombia, which allowed to characterize the offer, the study plans, the courses included in their curricular networks ... -
Agro-Industrial Waste from Cocoa Pod Husk (Theobroma cacao L.), as a Potential Raw Material for Preparation of Cellulose Nanocrystals
(Cartagena de Indias, 2022)Obtaining cellulose from agro-industrial waste offers the possibility of generating added value to solid biomass that is currently deposited in sanitary landfills. This research performed the evaluation of a residue from ... -
Administrative efficiency of IPS providers of health entities accredited in quality in Colombia
(Cartagena de Indias, 2019)This study evaluated the efficiencies of the IPS health providers accredited in quality in Colombia. The normative framework associated with the Mandatory Quality System, the quality accreditation standards for the IPS and ... -
Unidimensional and 3D Analyses of a Radial Inflow Turbine for an Organic Rankine Cycle under Design and Off-Design Conditions
(Cartagena de IndiasCampus Tecnológico, 2023-04-12)The organic Rankine cycle (ORC) is an efficient technology for electricity generation from low- and medium-temperature heat sources. In this type of power cycle, the radial inflow turbine is the option usually selected ... -
Adaptive Sensorless PI+Passivity-Based Control of a Boost Converter Supplying an Unknown CPL
(Cartagena de Indias, 2022)This paper presents an adaptive control to stabilize the output voltage of a DC–DC boost converter that feeds an unknown constant power load (CPL). The proposed controller employs passivity-based control (PBC), which assigns ... -
Resilience in the academic context. A phenomenological proposal about the exceed one’s self
(Cartagena de Indias, 2021-05)Introduction: This article describes the results of a phenomenological study, which aimed to understand the dynamics of resilience in students who have been in an academic risk situation in three universities at Cartagena ... -
Using an intelligent method for microgrid generation and operation planning while considering load uncertainty
(Cartagena de Indias, 2023-02-22)The integration of distributed generation (DG), energy storage systems (ESS), and controllable loads near the place of consumption has led to the creation of microgrids. However, the uncertain nature of renewable ... -
Effect of Speckle Filtering in the Performance of Segmentation of Ultrasound Images Using CNNs
(Cartagena de Indias, 2022)The convolutional neural networks (CNNs) as tools for ultrasound image segmentation often have their performance affected by the low signal-to-noise ratio of the images. This prevents a correct classification and extraction ... -
Efficiency analysis trees as a tool to analyze the quality of university education
(Cartagena de Indias, 2023)This research aims to design a quality management tool in education. The methodology comprises two stages: first, the construction of the decision tree model, and second, the efficiency evaluation. For the validation and ... -
Adaptive Fault Detection Based on Neural Networks and Multiple Sampling Points for Distribution Networks and Microgrids
(Cartagena de Indias, 2022)Smart networks such as active distribution network (ADN) and microgrid (MG) play an important role in power system operation. The design and implementation of appropriate protection systems for MG and ADN must be addressed, ... -
Adaptive control for second-order DC-DC converters: PBC approach
(Cartagena de Indias, 2021)This chapter deals with the design of a passivity-based controller for DC-DC converters by using a general representation for second-order converters, that is, buck, boost, buck-boost, and noninverting buck-boost converters. ... -
Valoration of the Synthetic Antioxidant Tris-(Diterbutyl-Phenol)-Phosphite (Irgafos P-168) from Industrial Wastewater and Application in Polypropylene Matrices to Minimize Its Thermal Degradation
(Cartagena de IndiasCampus Tecnológico, 2023-04-02)Industrial wastewater from petrochemical processes is an essential source of the synthetic phenolic phosphite antioxidant (Irgafos P-168), which negatively affects the environment. For the determination and analysis of ... -
Active Films Based on Starch and Wheat Gluten (Triticum vulgare) for Shelf-Life Extension of Carrots
(Cartagena de Indias, 2022)The use of biodegradable biopolymers with the incorporation of active ingredients has been considered as an alternative to extend the useful life of food. Therefore, the objective of this research was to develop active ...
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.
