Results 11 to 20 of about 150,499 (207)
Experimental densities and excess molar volumes of two binary mixtures composed of the ionic liquid trihexyl(tetradecyl)phosphonium bromide ([THTDP][Br]) mixed with acetonitrile (ACN) or tetrahydrofuran (THF) are reported in this work.
Octavio Elizalde-Solis +5 more
doaj +1 more source
Methane Hydrate Behavior for Water–Oil Systems Containing CTAB and Synperonic PE/F127 Surfactants
Methane hydrates were studied in systems containing aqueous dissolved surfactants in oil emulsions with a volume ratio of 40/60. Two commercial surfactants, named synperonic PE/F127 and cetyltrimethylammonium bromide, were evaluated at 0, 350, 700 and ...
Antonio Pavón-García +4 more
doaj +1 more source
Alternativas del uso de la cascarilla de arroz como fuente energética
Los combustibles fósiles son la mayor fuente energética en el mundo y Colombia no es la excepción a la regla, es por esta razón que el presente artículo plantea estudiar alternativas del uso de cascarilla de arroz como fuente energética en Colombia. Para
Angie Tatiana Ortega Ramírez +1 more
doaj +1 more source
Biomass waste, as raw material for renewable energy, is an attractive alternative since it does not compete with human food supply. An emerging alternative for its treatment is supercritical water gasification (SCWG), due to the high moisture content of ...
Sandro González-Arias +5 more
doaj +1 more source
La Ingeniería Química y la Química Industrial son profesiones en las cuales los fundamentos de ciencia son aplicados al diseño de procesos químicos.
Adolfo Obaya Valdivia +2 more
doaj +1 more source
Salinity has extensive adverse effects on plant growth and the development of new agronomic strategies to improve crop salt tolerance is becoming necessary.
Jonathan Fortt +12 more
doaj +1 more source
Primera Parte: Las carreras y grados en las universidades estatales (1864-1989).
En este artículo se presentan los hitos históricos de la enseñanza universitaria estatal de la ingeniería en Costa Rica. Se estudian las carreras y los grados ofrecidos. La Universidad de Santo Tomás aprueba en 1864 un plan de estudio en ingeniería, con
Wilbert Ezequiel Solano Rojas
doaj +1 more source
La enseñanza remota ante el COVID-19: Experiencias de la docencia en cuatro asignaturas de la UAM-I
En este trabajo presentamos algunas experiencias sobre la preparación y conducción de los cursos en el periodo previo, y durante el trimestre 20-I en un entorno completamente virtual debido a la contingencia sanitaria prevalente.
Jaqueline Padilla-Zúñiga +3 more
doaj +1 more source
The performance of chemical and biological additives in the methane hydrates formation and dissociation processes is of relevance for the development of gas-transport and gas-storage systems.
Antonio Pavón-García +4 more
doaj +1 more source
This study is aimed at the analysis of the pyrolysis kinetics of Nanche stone BSC (Byrsonima crassifolia) as an agro-industrial waste using non-isothermal thermogravimetric experiments by determination of triplet kinetics; apparent activation energy, pre-
Jonathan M. Sanchez-Silva +9 more
doaj +1 more source

