| Table of contents Cienc. Ing. Neogranad. vol.19 no.1 Bogotá Jan./June 2009 Articles | | | | · CONSTRUCTION OF A CRYPTOSYSTEM USING THE AES BOX AND A BIJECTIVE FUNCTION FROM THE NATURAL NUMBERS TO THE SET OF PERMUTATIONS Silva García, Víctor Manuel; Lindig Bos, Michael Klaus; Yáñez Márquez, Cornelio; Flores Carapia, Rolando; López Yáñez, Itzamá
| | | | · EVALUATION OF THE EFFECTIVENESS OF FIXED BED REACTORS USING WASTE WATER OF SUGAR CRAFT MILLS Cárdenas Calvachi, Gloria Lucía; Ramos Ramos, Robert Mauricio
| | | | · ESTIMATION OF THE NATURAL VIBRATION PERIODS IN TRADITIONAL HOUSING WITH CONCRETE WALLS Carrillo León, Wilmer Julián
| | | | · STRENGTH TO THE CUTTING IN DISCONTINUITIES WITH DIFFERENT DEGREES OF ROUGHNESS Camacho Tauta, Javier Fernando; Reyes-Ortiz, Oscar Javier; Nieto Leal, Andrés; Millán Montejo, Sebastián; Rincón Morantes, Fredy
| | | | · DESIGN OF EDUCATIONAL SOFTWARE BASED ON SKILLS Caro Piñeres, Manuel Fernando; Toscazo Miranda, Raúl Emiro; Hernández Rozo, Filadelfia María; David Lobo, María Elena
| | | | · EVALUATION OF THE INTERACTIVE TELEVISION FROM A PERSPECTIVE OF USE: PRACTICAL CASE Collazos Ordoñez, César Alberto; Arciniegas Herrera, José Luís
| | | | · DEVELOPMENT OF A BUILDING SIMULATOR WITH A VARIETY OF PARAMETERS Rosso Mateus, Andrés Enrique
| | | | · APPLICATION OF A SOFTWARE TO RECOGNIZE ANTE AND POS MORTEM OF SOLDIERS IN SERVICE Callejas Cuervo, Mauro; Turizo Ascencio, Yolvy Amileth; Sánchez Cárdenas, Diego Arturo
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