| Table of contents Tecnura vol.23 no.60 Bogotá Apr./June 2019 Editorial | | | | · EDITORIAL GARCÍA-UBAQUE, CÉSAR AUGUSTO
| | | Research | | | | · Remote sensing applied to the geomorphological mapping of the volcanoes of the upper Chaschuil river basin in the province of Catamarca, Argentina Serra, Malvina; Herrera, Carlos Gabriel; Ediht Niz, Adriana
| | | | · Ultrasonic techniques applied to the characterization of volcanic glass Cowes, D¡ego Alejandro; Salgán, María Laura; M¡eza, Juan Ignac¡o; Gómez, Martín Pedro
| | | | · Using recycled materials in cementitious composites Xargay, Hernán; Ripani, Marianela; Caggiano, Antonio; Folino, Paula; Martinelli, Enzo
| | | Case Study | | | | · Darcy-Weisbach resistance coefficient determination using Newton-Raphson approach for android 4.0 Lad Moreno, Edgar Orlando¡no; García Ubaque, César Augusto; García Vaca, María Cam¡la
| | | | · Performance of a granular .material stabilized with cement when compressive loading is applied Sánchez Cotte, Edgar Humberto; Torres Chueco, Gle¡dys María; Esqu¡vel Ramírez, Rodr¡go Elias
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