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APOPHIS - Effects of the 2029 Earth's encounter on the surface and nearby dynamics
(2022-02-01)
The 99942 Apophis close encounter with Earth in 2029 may provide information about asteroid's physical characteristics and measurements of Earth's effects on the asteroid surface. In this work, we analysed the surface and ...
Influence of Pressure and Water Content on Loess Collapsibility of the Xixian New Area in Shaanxi Province, China
(Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Geociencia, 2017-10-01)
More than 40% area of the Xixian New Area is a loess deposit region, and most of the loess landform is tableland and terrace where the thickness of loess is very large. Therefore, loess collapsibility will be the most ...
Glycine amino acid transformation under impacts by small solar system bodies, simulated via high-pressure torsion method
(2022-12-01)
Impacts by small solar system bodies (meteoroids, asteroids, comets and transitional objects) are characterized by a combination of energy dynamics and chemical modification on both terrestrial and small solar system bodies. ...
Empirical Correlations for the Swelling Pressure of Expansive Clays in the City of Barranquilla, Colombia
(Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Geociencia, 2017-01-01)
Swelling behavior of clays is of great importance for numerous engineering applications due to the prevalence of expansive clays around the world. Expansive clays are present in Mexico City, United States, Australia, Africa ...
Calibration of high-temperature furnace assemblies for experiments between 200 and 600 MPa with end‑loaded piston-cylinder apparatuses
(Sociedade Brasileira de Geologia, 2019)
Tunnelling in urban areas by epb machines: technical evaluation of the system
(UNIVERSIDAD NACIONAL DE COLOMBIA, 2011)
The paper refers to the methods adopted for building a high-speed railway tunnel system between Bologna and Firenze(Italy), focusing attention on the Bologna node which represents the heart of the system, connecting the ...
Variaciones del coeficiente lateral en reposo Ko en arcillas superficiales del occidente de la sabana de Bogotá
(Universidad de La Salle. Ediciones Unisalle, 21 d)