Universidad Tecnológica de Bolivar UTB (Colombia): últimos ingresos
Mostrando ítems 321-340 de 11668
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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 ... -
Academic efficiency of engineering university degrees and its driving factors. A PLS-DEA approach
(Cartagena de Indias, 2022)This research develops an academic production function for the educational process of industrial engineers in Colombia. The proposed function objectively analyses the relationships between the academic competencies obtained ... -
A transport justice approach to integrating vulnerable road users with automated vehicles
(Cartagena de Indias, 2022)Connected and automated vehicles (CAVs) are expected to revolutionise transport worldwide and transform urban life. However, there are many unknowns concerning the impacts of these technologies in terms of sustainability, ... -
Techno-economic Feasibility of A Trust and Grid-aware Coordination Scheme
(Cartagena de Indias, 2023-02)The massive penetration of active customers throughout Home Energy Management Systems (HEMS) may cause adverse effects on the power grid, including rebound peaks, instabilities, and power congestion. The concept of ... -
Determining factors for the creation of innovation-based ventures
(Cartagena de Indias, 2022)This research aims to determine the impact of internal and external factors of Social Capital, Entrepreneurial Self-Efficacy, and Person-Entrepreneurship Fit in the transition of nascent entrepreneurs toward venture creation. ... -
Determination of the optimal range of the compressor inlet air temperature in a power plant with stig cycle through of advanced exergetic analysis
(Cartagena de Indias, 2019)Conventional exergy analysis identifies the more inefficient components; however, this doesn’t regard interaction between components, neither real improvement potential to each component of the system, this information is ... -
Teaching programming to millennials, from paper to digital
(Cartagena de Indias, 2019-11)In this article we show the development process to create a programming course for the first-year students. These young people are very prompt to be influenced by technology, they are constantly immersed in smartphones, ... -
Vendor managed inventory system considering deteriorating items and probabilistic demand for a three-layer supply chain
(Cartagena de IndiasCampus Tecnológico, 2023-01-23)This paper proposes a Vendor Managed Inventory model for a three-layer supply chain comprised of multiple suppliers, manufacturers, and retailers. During the production and storage of products, rates of defective and ... -
Teaching of creativity to psychology students at the Universidad Tecnológica de Bolívar (Cartagena, Colombia)
(Cartagena de Indias, 2021-09-16)The following paper presents the pedagogical experience of the psychology program at the Universidad Tecnológica de Bolívar (UTB), a private university in Colombia (Cartagena de Indias) on how this academic program teaches ... -
Development and implementation of an optical profilometer by laser triangulation
(Cartagena de Indias, 2020)Profilometers are instruments commonly used in surface metrology tasks. These instruments play a key role in the industry, such as in manufacturing and quality assurance. However, conventional profilometry techniques require ... -
Development of heat transfer and pressure drop correlations in twisted tube heat exchangers
(Cartagena de Indias, 2020)Heat transfer in concentric twisted tubes exchangers has several applications in the chemical and food industry mainly due to its compact structure and high transport coefficients, however, its use has been limited as a ... -
Development of Living Documents and Experimentation with the Physical World as Strategies for the Retention and Attraction of Undergraduate Students in Programming Courses
(Cartagena de Indias, 2021)This article describes the pedagogical strategies planned within the Computer and Systems Engineering program attached to the Faculty of Engineering of the University - before the COVID-19 pandemic, to attract the attention ...