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Experimental Study of the Impact of Trace Amounts of Acetylene and Methylacetylene on the Synthesis, Mechanical and Thermal Properties of Polypropylene
(2022)
During the production of polymer-grade propylene, different processes are used to purify this compound and ensure that it is of the highest quality. However, some impurities such as acetylene and methyl acetylene are ...
Rapid Filling Analysis with an Entrapped Air Pocket in Water Pipelines Using a 3D CFD Model
(2023-02-21)
A filling operation generates continuous changes over the shape of an air–water interface, which can be captured using a 3D CFD model. This research analyses the influence of different hydro-pneumatic tank pressures and ...
Effect of Speckle Filtering in the Performance of Segmentation of Ultrasound Images Using CNNs
(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 ...
Unidimensional and 3D Analyses of a Radial Inflow Turbine for an Organic Rankine Cycle under Design and Off-Design Conditions
(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 ...
Sensitivity of Empirical Equation Parameters for the Calculation of Time of Concentration in Urbanized Watersheds
(2022-09-13)
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Sensitivity of Empirical Equation Parameters for the Calculation of Time of Concentration in Urbanized Watersheds
by Jamilton Echeverri-Díaz 1,Óscar E. Coronado-Hernández ...
ISeeU2: Visually interpretable mortality prediction inside the ICU using deep learning and free-text medical notes
(2022)
Accurate mortality prediction allows Intensive Care Units (ICUs) to adequately benchmark clinical practice and identify patients with unexpected outcomes. Traditionally, simple statistical models have been used to assess ...
Influence of Family Communication on Perceived Stress during the COVID-19 Pandemic
(2021)
Objective: This descriptive-correlational study analyzed the relationship between family communication and perceived stress during the Covid-19 pandemic in Colombia. Methods: The participants were 800 Colombians, between ...
Freedom and opportunity. Distributive justice considerations in amartya sen and philippe van parijs
(2021)
The purpose of this essay is to approach the conceptions of distributive justice in two contemporary economists: Amartya Sen and Philippe Van Parijs. To this end, the notion of capabilities that Martha Nussbaum presents ...
Design of an Instrument to Evaluate Organizational Design Characteristics Based on the Organizational Configuration Model
(2022)
The purpose of this article was to design and validate an instrument to determine relevant variables of the business environment, demeanor, and organizational behaviors linked to the Organizational Configuration Model and ...
Climate anxiety, wellbeing and pro-environmental action: correlates of negative emotional responses to climate change in 32 countries
(2022)
This study explored the correlates of climate anxiety in a diverse range of national contexts. We analysed cross-sectional data gathered in 32 countries (N = 12,246). Our results show that climate anxiety is positively ...
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.