Buscar
Mostrando ítems 81-90 de 136
Statistical Approach for Computing Base Flow Rates in Gaged Rivers and Hydropower Effect Analysis
(2023-06-27)
The calculation of base flow rates in rivers is complex since hydrogeological and hydrological
studies should be performed. The estimation of base flow rates in storm hydrograph associated to
various return periods is ...
Different Experimental and Numerical Models to Analyse Emptying Processes in Pressurised Pipes with Trapped Air
(2023-06-29)
In hydraulic engineering, some researchers have developed different mathematical and numerical tools for a better understanding of the physical interaction between water flow in pipes with trapped air during emptying ...
Subordinación de la mujer en los libros educativos de Cartagena
(2023-05-22)
Introducción. El sexismo es un patrón cognitivo y comportamental en el cual la figura masculina atribuye a la femenina caracteres que reflejan vulnerabilidad e indefensión alrededor de todas las dimensiones del desarrollo. ...
Effect of pyrolysis, impregnation, and calcination conditions on the physicochemical properties of TiO2/Biochar composites intended for photocatalytic applications
(2023-06-02)
Biochars are outstanding materials obtained from the pyrolysis of biomass, possessing unique physicochemical properties that are attractive for many environmental applications, including photocatalysis. In this work, we ...
Applying a Green Solvent with Microwave, Ultrasound, and Soxhlet Extraction Techniques to Quantify the Slip Additive Cis-1,3-docosenamide and Nine Oxidative Degradation Byproducts in Polypropylene Samples
(2023-08-18)
Erucamide is used as an important slip agent for polymers. However, erucamide can
degrade during processing and long-term storage, forming various oxidation products. These degra dation products can affect the recovery ...
Rethinking environmental news coverage through Agenda-Setting and the normative function of attributes
(2023-05-07)
Examinamos los atributos sustantivos y afectivos dominantes en 358 noticias relacionadas con la gestión del agua y los residuos en Colombia durante cinco años. Los resultados revelaron que los textos estudiados se centraron ...
Parts per Million of Propanol and Arsine as Responsible for the Poisoning of the Propylene Polymerization Reactio
(2023-09-01)
Polypropylene synthesis is a critical process in the plastics industry, where control of
catalytic activity is essential to ensure the quality and performance of the final product. In this study,
the effect of two ...
Detection of forest windthrows with bitemporal COSMO-SkyMed and Sentinel-1 SAR data
(2023-08-29)
Wind represents a primary source of disturbances in forests, necessitating an assessment of the resulting damage to ensure appropriate forest management. Remote sensing, encompassing both active and passive techniques, ...
SunspotCalc: Una aplicación basada en Web y Python para calcular la rotación diferencial del sol y su fotosfera
(2023-04-22)
En este manuscrito presentamos una aplicación web con soporte en lenguaje de programación PYTHON, REACTJS y JAVASCRIPT, libre y abierta, para el desarrollo de una actividad de enseñanza-aprendizaje de la astronomía, ...
Analysing a license plate-based vehicle restriction policy with optional exemption charge: The case in Cali, Colombia
(2023)
Several cities have restricted the use of private vehicles based on the last digit of a vehicle's license plate to reduce traffic congestion and pollution. However, the effectiveness of this measure has been questioned. ...
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.