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A continental scale water balance model: a GIS-approach for Southern Africa
(Pergamon www.elsevier.com/locate/pce, 2003)
A distributed GIS-based hydrological model is developed using GIS and computational hydrology techniques. The model is
based on water balance consideration of the surface and subsurface processes. The surface water balance ...
Land tenure and management reforms in East and Southern Africa - the case of Botswana
(Elsevier Science Ltd. http://www.elsevier.com/locate/landusepol, 2000)
Since attainment of independence, almost every country in East and Southern Africa has introduced some kind of land reform
aimed at reconciling indigenous land tenure practices and those introduced by colonial regimes. ...
Screen integrable lightlike hypersurfacesof indefinite sasakian manifolds
(Birkhäuser Basel. http://www.springerlink.com/content/110963/?p=c42ba01ff0bd482b81a3ebdf3b649c9a&pi=0, 2009)
We investigate lightlike hypersurfaces of indefinite Sasakian manifolds,
tangent to the structure vector field and whose screen distribution is
integrable. We prove some results on parallel vector fields and on a leaf ...
Energy sector policies in Botswana and their implications for global climate change
(Kluwer Academic Publishers, http://www.springerlink.com/content/102895/, 2002)
Like most African countries, Botswana contributes almost insignificantly to global greenhouse emissions (GHGs). In this context, some have argued that energy policy and legislative measures to regulate emissions in Botswana ...
An unexpected 1,2-hydride shift in phosphoric acid-promoted cyclodimerization of styrene oxides under solvent-free conditions. A synthetic route towards 2,4-disubstituted 1,3-dioxolanes
(Elsevier Science Ltd, http://www.elsevier.com/locate/tetlet, 2009)
A 1,2-hydride shift in the phosphoric acid-promoted cyclodimerization of styrene oxide and its chloro
derivatives under solvent-free conditions leading to 2,4-disubstituted 1,3-dioxolanes is described. Methoxy substituents ...
Effect of annealing on the structural, optical and electrical properties of ITO films by RF sputtering under low vacuum level
(Elsevier Science Ltd. http://www.elsevier.com/locate/mejo, 2008)
Indium tin oxide (ITO) thin films were prepared by RF sputtering of ceramic ITO target in pure argon atmosphere at a high base pressure of 3×10−4 mbar without substrate heating and oxygen admittance. The use of pure argon ...
A bichalcone from the twigs of Rhus pyroides
(Elsevier Science Ltd, http://www.elsevier.com/locate/phytochem, 2000)
The twigs of Rhus pyroides yielded a novel bichalcone 2',40,21-trihydroxy-4',41-dimethoxy-4-O-51-bichalcone. It was identified on the basis of spectroscopic data including 1D and 2D NMR spectroscopy. The name rhuschalcone-1 ...
Phase segregation in Pb:GeSbTe chalcogenide system
(EDP Sciences, 2008)
Effect of Pb substitution on the amorphous-crystalline transformation temperature, optical band
gap and crystalline structure of Ge2Sb2Te5 has been studied. In Pb:GeSbTe chalcogenide films prepared by
thermal evaporation, ...
Nanoindentation measurements of the mechanical properties of polycrystalline Au and Ag thin films on silicon substrates: Effects of grain size and film thickness
(Elsevier, 2006)
This paper presents the results of nanoindentation experimental studies of the contact-induced deformation in Au and Ag thin films. The paper
examines the effects of film thickness and substrate deformation restraint on ...
Human–computer interface design issues for a multi-cultural and multi-lingual English speaking country — Botswana
(Elsevier Science Ltd, www.elsevier.com/locate/intcom, 2001)
This paper reports on research carried out to determine whether a localised interface is preferred by users in a multi-cultural and multi-lingual country where a non-local language is nationally used,.
We attempted to ...