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Conceptions and pedagogical practices on the mathematical processes of teachers
(Journal of Physics: Conference Series, 2019)
The objective of this research work is to establish the disciplinary, didactic and pedagogical conceptions of teachers in the area of mathematics in basic education against the formative process by competences and mathematical ...
Economic Growth Model in Developing Economies
(Journal of Physics: Conference Series, 2019-11-19)
Economic growth is a function of the interactions between the different productive factors framed in the economic policy of an economy. The present work tries to explain the economic growth in developing economies, for ...
Subgrade improvement by the replacement of conventional stone aggregate by biosanitary waste treated
(Journal of Physics: Conference Series, 2019-09-30)
An experimental investigation was made in search of the improvement of the material used for the conformation of the subgrade in pavements. Three separate excavations were carried out 150 m apart in a 510 m stretch located ...
Towards the production of microalgae biofuels: the effect of the culture medium on lipid deposition
(BioTechnologia, 2019-09-26)
Microalgae have been studied in recent years for various reasons, one among them being their potential in the production of biofuels. Biofuels are considered as a renewable source that does not compete with the food industry, ...
Comparative thermal analysis of extruded ceramic products between multi perforated brick and modified bricks in cells distribution
(Journal of Physics: Conference Series, 2019-11-29)
The demand for cooling and heating systems to adapt spaces is a critical environmental problem due to the high energy consumption required for its operation. For this reason, the offer of products for architectural facades ...
Perceptions of the Colombian business sector regarding its role in the post-conflict
(Cuadernos de Administración, 2019-06-19)
The objective of this research is to analyze the role of the Colombian business sector in the post-conflict scenario and the construction of peace from the perception of entrepreneurs. It is a study framed in the ...
Modelado y simulación del comportamiento de velocidad de un dinamómetro hidráulicoModeling and simulation of the speed behavior of a hydraulic dynamometer
(Revista Colombiana de Tecnologías de Avanzada, 2019-04)
En este artículo se presenta la construcción y validación de un modelo matemático que describe el comportamiento dinámico de un dinamómetro hidráulico. Analizando el fluido de trabajo el modelo, tiene en consideración tres ...
Rheological, morphological, film and thermal properties of emulsions of polyvinyl acrylic resins, carboxymethyl cellulose and titanium oxide
(Journal of Physics: Conference Series, 2019-11-29)
The study of the physical-chemistry properties of dispersions are very importants in the coating industry, since of it depend the application and stability of these systems. Therefore, the aim of this investigation was ...
Colloidal, morphological, thermal, rheological, and film properties of waterborne hyperbranched alkyd¿acrylic resins
(Journal of Coatings Technology Research, 2019-04-23)
Waterborne hyperbranched alkyd–acrylic resins (HAAR) are interesting materials that provide excellent properties yet require only low levels of solvent in formulations using them. However, they have been scarcely studied. ...
Obtaining and characterizing of WC-Co coatings obtained from thermal spray by flame
(Journal of Physics: Conference Series, 2019-11-29)
Tungsten carbide is used in the production of cutting tools for steel and as protection against wear due to its extremely high hardness. High speed oxygen fuel spraying process has been widely used to deposit WC-Co coatings. ...