| | Sumário
Tecnura vol.23 no.61 Bogotá jul./set. 2019  Editorial | | | | | | · Editorial
GARCÍA-UBAQUE, CÉSAR AUGUSTO
| | | | | Pesquisa | | | | | | · Piezoelectric systems in the urban train of guadalajara, Mexico: entropy and negentropy
Arizaga Barragán, Arturo; González Pérez, Mario Guadalupe; Asprilla Lara, Yefer
| | | | | | · Development and manufacture of a low power gas microsensor for the detection of ammonia at low concentrations
Rodríguez, Daniel; Bonaparte, Juan; Boggio, Norberto; Fasciszewski, Alejandro
| | | | | | · Construction and evaluation of a high voltage divider for lightning impulse tests
Mina-Casaran, Juan David; García, Diego Fernando; Echeverry, Diego Fernando
| | | | | | · Andesite rock fracture and spectral analysis of acoustic emission signals
Filipussi, Dino Alberto; Muszkats, Juan Pablo; Sassano, Miryam Patricia; Zitto, Miguel Eduardo; Piotrkowski, Rosa
| | | | | Estudo de caso | | | | | | · Adjustment ANSI 24 overexcitation protection of a synchronous generator for a Siemens 7UM62 relay
Caicedo Delgado, Nayiver Gladys; Andrade, Carlos Alberto
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