Buscar
Mostrando ítems 911-920 de 921
Influence of High Axial Compression Ratios in RC Columns on the Seismic Response of MRF Buildings
(2024-04-03)
Poorly designed reinforced concrete (RC) columns of actual moment-resisting frame (MRF) buildings can undergo Axial Compression Ratios (ACR) so high as their demand exceeds their capacity, even for serviceability gravity ...
Improving Pump Characteristics through Double Curvature Impellers: Experimental Measurements and 3D CFD Analysis
(2023-07-27)
The outlet angle and shape of impeller blades are important parameters in centrifugal pump
design. There is a lack of detailed studies related to double curvature impellers in centrifugal pumps
in the current literature; ...
A machine learning model to predict standardized tests in engineering programs in Colombia
(2023-08)
This research develops a model to predict the results of Colombia’s national standardized test for Engineering programs. The research made it possible to forecast each student’s results and thus make decisions on reinforcement ...
¿Y para nosotros cuándo? : Impactos del monocultivo de palma de aceite en comunidades campesinas en el Caribe colombiano: El caso de María la Baja, Bolívar
(2023-12-01)
Este trabajo examina los efectos de la expansión de la palma aceitera en María la Baja, Montes de María. En esta investigación social aplicada se realizó un estudio mixto, analizando datos de producción ...
Manifestaciones y escenarios de la violencia escolar percibida en comunidades educativas de Cartagena, Colombia
(2024-02-05)
Gran parte de los colegios públicos de Cartagena (Colombia) se ubican en
zonas vulnerables de esta ciudad, caracterizándose estos colegios por la
elevada incidencia de la violencia, viéndose la calidad de la educación, ...
Study of the Chemical Activities of Carbon Monoxide, Carbon Dioxide, and Oxygen Traces as Critical Inhibitors of Polypropylene Synthesis
(2024-02-23)
This study outlines the investigation into how the compounds CO2
, CO, and O2
interact
with the active center of titanium (Ti) on the surface of MgCl2 and how these interactions impact the
productivity of the Ziegler–Natta ...
Bioprospecting of extremophilic perchlorate‑reducing bacteria: report of promising Bacillus spp. isolated from sediments of the bay of Cartagena, Colombia
(2023-12-12)
Three extremophile bacterial strains (BBCOL-009, BBCOL-014 and BBCOL-015), capable of degrading high concentrations of perchlorate at a range of pH (6.5 to 10.0), were isolated from Colombian Caribbean Coast sediments. ...
¿Volver o no volver a las clases presenciales? Motivaciones y temores que influyen en la deserción universitaria en Colombia en tiempos de postpandemia
(2024-04-30)
Objetivo: La pandemia de Covid-19 interrumpió la educación presencial en la mayoría de los países del mundo. Las universidades colombianas no fueron la excepción, y ahora, con el regreso a las aulas físicas, enfrentan ...
Genericity of Homeomorphisms with Full Mean Hausdorff Dimension
(2024-04-18)
It is well known that the presence of horseshoes leads to positive entropy. If our goal is to construct a continuous map with infinite entropy, we can consider an infinite sequence of horseshoes, ensuring an unbounded ...
Quantification of Irgafos P-168 and Degradative Profile in Samples of a Polypropylene/Polyethylene Composite Using Microwave, Ultrasound and Soxhlet Extraction Techniques
(2024-04-21)
In polypropylene/polyethylene composite (C-PP/PE) production, stabilizing additives
such as Irgafos P-168 are essential as antioxidant agents. In this study, an investigation was carried out
that covers different ...
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.