Productos de investigación: Envíos recientes
Mostrando ítems 981-1000 de 1398
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Willingness to change car use to commute to the UPTC main campus, Colombia: A hybrid discrete choice modeling approach
(University of Minnesota, 2019)This paper studies the willingness to change car use when commuting to a university campus. We estimated a hybrid discrete choice (HDC) model to test the hypothesis that, in addition to traditional tangible attributes, the ... -
Estimation of soil resistivity by the assembly of a vertical electrical sounding equipment at a university campus at Turbaco, Bolivar
(Institute of Physics Publishing, 2019)A low-cost geoelectric equipment was implemented for academic purposes to carry out the Vertical Electrical Sounding method in order to determine the resistivity and depth of a point on the surface of a university zone and ... -
Optimal power flow solution in direct current grids using Sine-Cosine algorithm
(Institute of Physics Publishing, 2019)In the next years, Colombian power system will have the connection of distributed generators and constant power loads; Therefore, it is necessary to propose the analysis methods that allow establishing the minimum requirements ... -
Optimal power flow studies in direct current grids: An application of the bio-inspired elephant swarm water search algorithm
(Institute of Physics Publishing, 2019)Colombian power system is experienced important changes due to the large scale integration of renewable power generation based on solar and wind power; added to the fact that direct current networks have taken important ... -
Alternative power flow method for direct current resistive grids with constant power loads: A truncated Taylor-based method
(Institute of Physics Publishing, 2019)The power flow in electrical system permits analyzing and studying the steady-state behavior of any grid. Additionally, the power flow helps with the proper planning and management of the system. Therefore, it is increasingly ... -
Voice compression using discrete cosine transform and wavelet transform
(Institute of Physics Publishing, 2019)Compressing information, such as voice, allows freeing up memory space, better utilizing bandwidth, in other words taking advantage of resources more efficiently in a time where technologies such as Voice over Internet ... -
How to manage generations? An Approach based on the Quality of Work Life
(IBIMA Publishing, 2019)The objectives of this research are to examine whether there are significant differences in the perception of quality of work life among employees of three generational cohorts (i.e., Baby Boomers, Generation Xers and ... -
Multivariate statistical analysis applied to water quality of a tropical Coastal Lagoon, Cartagena, Colombian Caribbean
(Gadjah Mada University, 2020)Coastal lagoons are one of the most threatened ecosystems in the world, because of population growth, habitat destruction, pollution, wastewater, overexploitation and invasive species which are the main causes of their ... -
Methodology of data envelopment analysis (DEA) - GLMNEt for assessment and forecasting of financial efficiency in a free trade zone - Colombia
(Centro de Informacion Tecnologica, 2019)This research work proposes a methodology for evaluation and forecasting for companies located in the Industrial Port Zone of the city of Barranquilla, Colombia. Based on an empirical and rational analysis, supported by ... -
Perceptions and experiences about Google News from the editors of Latin-American news media indexed in the editions of Colombia and Mexico
(Universidad Complutense de Madrid, 2018)News outlets of all sizes and trajectories are added to news aggregation services on the Web such as Google News, a situation that has caused to conflicts between parties in various parts of the world, including Latin-America. ... -
On the use of the p-q theory for harmonic currents cancellation with shunt active filter
(VSB-Technical University of Ostrava, 2019)Discussion and mathematical proof on necessary and sufficient conditions for the application of the p-q theory for compensating the harmonic currents consumed by non-linear load using a shunt active filter are presented. ... -
Analysis and Classification of Evoked Potentials in Response to Familiar and Unfamiliar Faces
(Institute of Electrical and Electronics Engineers Inc., 2018)Brain activity during perception and recognition of faces have been studied by researchers with the purpose to develop brain-computer interfaces and to study neurological disorders. In this paper, we analyzed evoked ... -
Wirtinger's Calculus for the Load Flow in Power Distribution Grids
(Institute of Electrical and Electronics Engineers Inc., 2018)This paper shows a Wirtinger's-Calculus based loadflow methodology for power distribution grids. This approach allows to obtain an algorithm which works directly on the complex domain maintaining some useful symmetries and ... -
Small-Signal Stability in Low-Voltage DC-Grids
(Institute of Electrical and Electronics Engineers Inc., 2018)This paper presents a general methodology for small signal stability analysis in low voltage de grids considering four type of terminals, namely: constant power, constant voltage, constant current and constant impedance. ... -
An IoT Camera System for the Collection of Data Using QR Code as Object Recognition Algorithm
(Institute of Electrical and Electronics Engineers Inc., 2018)This paper proposes an Internet Of Things (IoT) implementation for recognition of objects using videos to store data about specific objects on internet. This IoT implementation is based on a recognition algorithm for objects ... -
Implementation of an Unmanned Surface Vehicle for Environmental Monitoring Applications
(Institute of Electrical and Electronics Engineers Inc., 2018)Environmental monitoring in inland waters is an important issue for adequate planning and management of this kind of territories. This paper shows the implementation of the concepts and strategies for a boat to follow a ... -
Technologies applied in the monitoring and control of the temperature in the Cold Chain
(Institute of Electrical and Electronics Engineers Inc., 2018)In this article, an analysis of the technologies applied for the monitoring and control of the temperature of perishable products in the cold chain is presented. Also, a general description of the stages of the process is ... -
Humor styles across 28 countries
(Springer, 2019)Responses to a measure of the four humor styles of affiliative, aggressive, self-enhancing, and self-defeating from the Humor Styles Questionnaire (HSQ; Martin et al. Journal of Research in Personality, 37(1), 48–75, 2003) ... -
Yet another robot platform for teaching programming: YarpTp
(Institute of Electrical and Electronics Engineers Inc., 2018)This paper introduces an implementation of a robot elaborated with Raspberry Pi that accompanies the mentoring of the programming courses given at Universidad Tecnológica de Bolívar as a pedagogic element. This robotic ...
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.