The substitution process of heavy fuel oil with natural gas in the industrial sector of Valle del Cauca and Cauca – Colombia 2004-2012 מאת Rangel Jiménez, Andrés Eduardo, Portilla Salazar, Carlos Johnny

נושאים: "...Alternative energy sources..."

Thermal transfer analysis of tubes with extended surface with fractal design מאת Llano Sánchez, Luis Eduardo, Domínguez Cajeli, Darío Manuel, Ruiz Cárdenas, Luis Carlos

נושאים: "...Alternate energy sources..."