Buscar
Mostrando ítems 181-190 de 525
Estimation of PQ distance dispersion for atrial fibrillation detection
(2021-05-03)
Background and objective: Atrial fibrillation (AF) is the most common cardiac arrhythmia in the world. It is
associated with significantly increased morbidity and mortality. Diagnosis of the disease can be based on
the ...
Factors that affect quality of work life of the millennials linked to the commercial sector in Colombia
(2021-05-01)
The present investigation has two aims: (1) to empirically examine the factors that affect QWL among
the millennials working in the commercial sector in Colombia and (2) to investigate the role of a set of
individual ...
An Effective Power Dispatch of Photovoltaic Generators in DC Networks via the Antlion Optimizer
(2023-01-27)
This paper studies the problem regarding the optimal power dispatch of photovoltaic (PV) distributed generators (DGs) in Direct Current (DC) grid-connected and standalone networks. The mathematical model employed considers ...
Prediction of motorcyclist traffic crashes in Cartagena (Colombia): development of a safety performance function
(2021-04-05)
Motorcyclists account for more than 380 000 deaths annually worldwide from road tra c accidents. Motorcyclists are the most vulnerable road users worldwide to road safety (28% of global fatalities), together with cyclists ...
Preliminary machine learning model for citrus greening disease (Huanglongbing-HLB) prediction in Colombia
(2020-11-09)
Citrus greening disease (Huanglongbing-HLB) is considered the most destructive citrus disease worldwide. Of the three species of Candidatus liberibacter associated with HLB, two have been recently reported in Latin America. ...
APPMAR 1.0: A Python application for downloading and analyzing of WAVEWATCH III® wave and wind data
(2022-03-10)
This work presents APPMAR 1.0, an application written in the Python programming language that downloads, processes, and analyzes wind and wave data. This application is composed of a graphical user interface (GUI) that ...
Conventional and advanced exergoeconomic indicators of a nitric acid production plant concerning the cooling temperature in compression Train’s intermediate stages
(2021-07-30)
In the refining and petrochemical industrial sector, large amounts of energy are used, so using the concept of exergy allows a rational use of this resource. In the different exergy and exergoeconomics studies applied in ...
Concerning Dynamic Effects in Pipe Systems with Two-Phase Flows: Pressure Surges, Cavitation, and Ventilation
(2022-07-31)
The risks associated with unsteady two-phase flows in pressurized pipe systems must be considered both in system design and operation. To this end, this paper summarizes experimental tests and numerical analyses that ...
Maniobras de llenado y vaciado en grandes conducciones. Aplicación a una tubería de fundición DN400 en Massamagrell (Valencia, España)
(2020-01-31)
Air pockets inside hydraulic installations during filling and emptying processes can generate pressure surges and negative pressure, respectively. Serious damages can be occurred in pipelines. In order to analyse hydraulic ...
Passivity-based control of islanded microgrids with unknown power loads
(2020-10-12)
In this paper, the control problem of microgrids (MGs)operating in islanded mode is approached from a passivity-based control perspective. A control scheme is proposed that, relying only on local measurements for the power ...
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.