| Table of contents Ing. Desarro. vol.31 no.2 Barranquilla July/Dec. 2013 Editorial | | | | | | | Research article | | | | · Pseudo-periodic surrogate data in speech signals to determine intrinsic dynamics Delgado Trejos, Edilson; Hurtado Jaramillo, Juan Sebastián; Guarín, Diego L; Orozco, Álvaro Á
| | | | · Comparison between exact and approximated visco-elastic transfer functions for a resonant-column system Camacho-Tauta, Javier
| | | | · Wireless sensor network for early warning monitoring in underground mines: a solution to the problem of explosive atmospheres in Colombian coal mining Romero Acero, Álvaro; Marín Cano, Alejandro; Jiménez Builes, Jovani Alberto
| | | | · Influence of using star grass (Cynodon Plectostachyus) as bulking agent on municipal biowaste composting Oviedo-Ocaña, Ricardo; Daza-Torres, Martha; Marmolejo-Rebellón, Luis; Osorio-Ortiz, Ángela; Torres-Lozada, Patricia
| | | | · Attitudes and Beliefs of Intercultural Competence in online teachers Ricardo Barreto, Carmen; Medina Rivilla, Antonio
| | | Review articles | | | | · Statistical design of control charts For autocorrelated data design Of control charts Peñabaena Niebles, Rita; Oviedo-Trespalacios, Óscar; Vásquez Cabeza, Juan Guillermo; Fernández Cantillo, Laura Milena
| | | | · The detection of pathologies from diabetic disease: a review of digital retinal image analysis Rudas, Jorge; Sánchez Torres, Germán
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