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Optimization of physical, optical and barrier properties of films made from cassava starch and rosemary oil
(Springer Nature, 2018-11-07)
In this study, films from cassava starch and rosemary oil were prepared by using the casting method. Glycerol was used as plasticizer and tween 80 as surfactant. The influence of Cassava starch (Cs), Rosemary oil (Ro), ...
Geopolymeric concretes based on fly ash with high unburned content
(Elsevier, 2018-03-20)
This study used fly ash (FA) with a high amount of unburned content (21%) to produce simple (Geo FA) and binary (Geo FA/granulated blast furnace slag [GBFS]) geopolymeric concretes. The effect on the mechanical strength ...
Distribución espacio-temporal de Diatraea spp. (Lepidoptera: Crambidae) en el valle del río Cauca, Colombia
(Sociedad Colombiana de Entomología, SOCOLENUniversidad de Valle (Univalle), 2018)
En el valle del río Cauca se ha incrementado el daño por parte de los barrenadores del tallo, Diatraea spp., en la caña de azúcar, debido a dos nuevas especies, D. tabernella y D. busckella, que se sumaron a las ya conocidas ...
