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Rural cooperatives: An opportunity to rethink the role of the State in the face of seed regulation effects in Colombia
(2020-09-07)
This paper analyzes the causes that affect the rural sector in Colombia, making farmers vulnerable. The situation is made worse as a result of the seed certification regime that prohibits farmers from replanting non-certified ...
Indexing of Colombian psychology journals in Spanish scientific databases: an exploratory study
(2021)
An exploratory work that analyzes the relevance of the principal Colombian psychology journals [those that are indexed in the most important national (Publindex) and international (Web of Science and Scopus) indicators], ...
Resilience in the academic context. A phenomenological proposal about the exceed one’s self
(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 ...
Efficiency Centered Maintenance of Preheat Train of a Crude Oil Distillation Unit
(2020)
Nowadays, maintenance is based on the synergistic integration of operational reliability and timely maintenance, which guarantees the required availability and optimal cost. Operational reliability implies producing more, ...
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 ...
Extended focused image in white light scanning interference microscopy
(2019)
We propose a method to obtain a fringe-free extended focused image in white light scanning interference microscopy based on processing the stack of images over a range within the coherence length of the source. © 2019 The ...
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 ...
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.