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Influence of survey engagement and multiple-choice heuristics in the estimation of the value of a statistical life
(2023)
Estimating the value of non-market goods, such as reductions in mortality risks due to traffic accidents or air pollution, is typically done using stated choice (SC) data. However, issues with potential estimation biases ...
Adaptive control for second-order DC-DC converters: PBC approach
(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. ...
EFFECT of the ENVIRONMENTAL CONDITIONS of TROPICAL CLIMATES on the PERFORMANCE PARAMETERS of A GAS TURBINE POWER GENERATION PLANT Fajardo J. ; Barreto D. ; Castro T. ;
(2020)
It is known that high temperatures adversely affect the performance of gas turbines, but the effect of the combination of atmospheric conditions (temperature and relative humidity -RH- ) on the operation of this type of ...
Detection of broken bars in three-phase motors by using curve fits and classification algorithms
(2022)
Since they transform electrical energy into mechanical energy, three-phase induction motors are one of the main assets that companies have. Therefore, good monitoring of their conditions and diagnosing their faults is ...
Evaluation of ultrasound by direct contact on convective drying of banana (Musa paradisiaca) slices using Principal Component Analysis and Response Surface Methodology
(2019)
Conventional convective drying is one of the latest techniques used to reduce the amount of water in foods, however, due to the long times of exposure to high temperatures, these techniques can reduce the sensory quality, ...
Energy Management System for the Optimal Operation of PV Generators in Distribution Systems Using the Antlion Optimizer: A Colombian Urban and Rural Case Study
(2022)
This paper presents an Energy Management System (EMS) for solving the problem regarding the optimal daily operation of Photovoltaic (PV) distributed generators in Alternate Current (AC) distribution grids. To this effect, ...
Hybrid Materials Based on Nanoparticles Functionalized with Alkylsilanes Covalently Anchored to Epoxy Matrices
(2022)
In this work, the surface modification of zinc oxide nanoparticles (ZnO-NPs) with 3-glycidyloxy-propyl-trimethoxysilane (GPTMS) was investigated. The ZnO-NPs were synthesized using the physical method of continuous arc ...
Gender differences in math and reading: Performance, self-concept and expectations
(2020)
Previous studies show gender differences in math and language performance, mainly in adolescents. In this study, we aim to evaluate gender differences in self-concept, subjective value, expectations and academic performance, ...
Public policy for early childhood and social determinants of Acute Respiratory Diseases in under-five children in Colombia. A multi-level analysis
(2021-12-30)
Introduction: Despite having public policies, Acute Respiratory Diseases (ARD) continues to cause a high level of childhood morbidity in the least developed territories of Colombia. These inequities and others due to ...
Implementation model of Digital Transformation projects in Boutique Hotels
(2020)
Digital transformation has become an imperative of competitiveness for companies. However, there is a knowledge gap on the subject mainly in countries like Colombia and more in industry sectors where the use of information ...
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.