PASCUAL COSP , José

La planificación del aprovechamiento de los recursos naturales de una zona pasa por el conocimiento detallado del ecosistema, de su tendencia evolutiva y del impacto que sobre el mismo puede ejercer la tecnología actual. La previsión en orden al mejoramiento del recurso natural suelo, conjugando la tendencia evolutiva del ecosistema y la...

This paper presents in a comprehensive way the thermal behavior of natural and hot-washed sisal fibers, based on the fundamental components of lignocellulosic materials: cellulose, xylan and lignin. The research highlights the influence exerted on the thermal stability of sisal fibers by other constituents such as non-cellulosic polysaccharides...

Mesoporous gamma alumina fibres of high surface area, stable up to 1000°C, were synthesized by bioreplica technique using sisal fibres as templates. Alumina formation during pyrolysis and calcination of fibres infiltrated with aluminium chloride solution has been studied, paying special attention to the interaction between the precursor and...

This work covers the study of microstructural changes of natural sisal fibers induced by different conditioning pre-treatments: mechanical grinding, cryogenic grinding, and hot water washing. The aim of the work is to clarify the effects of the pre-treatments on crystallinity and infrared spectra of sisal. Scanning electron microscopy results...

Emanation thermal analysis (ETA), thermogravimetry and high temperature XRD were used to characterize the thermal behavior during dehydration of natural Na montmorillonite (Upton Wyoming, USA) and homoionic montmorillonite (MMT) samples saturated with different cations, i.e. Li+, Cs+, NH 4 +, Mg2+ and Al3+. ETA results characterized radon...

Esta es una publicación del I Congreso Internacional "El Patrimonio Cultural y Natural como Motor de Desarrollo: Investigación e Innovación", que organizó el Proyecto CEI Patrimonio de la Universidad de Jaén, los días 26, 27 y 28 de enero de 2011.