Search
Now showing items 31-40 of 132
Piezoelectric energy harvesting devices: an alternative energy source for wireless sensors
(Hindawi Publishing Corporation, http://www.hindawi.com/journals/smr/, 2012)
The recent advances in ultralow power device integration, communication electronics, and microelectromechanical systems
(MEMS) technology have fuelled the emerging technology of wireless sensor networks (WSNs). The spatial ...
Simulation of solar radiation conditions in coastal and continental areas by using a new algorithm
(David Publishing Company, http://www.davidpublishing.com/journals_info.asp?jId=1000, 2011)
An algorithm developed at the University of Botswana is used to study solar radiation conditions in Namibia, South Africa, Mozambique and Botswana. The synoptic stations chosen for the study differ by meteorological ...
Floristic diversity and uses of medicinal plants sold by street vendors in Gaborone, Botswana
(Global Science Books, http://www.globalsciencebooks.info/, 2011)
The sale of herbal medicine, either as concoctions or single plant specimens, has become common in the streets and main shopping centres of major towns and cities in Botswana. A study was undertaken to collect information ...
Finite element modeling of a piezoelectric composite beam and comparative performance study of piezoelectric materials for voltage generation
(International Scholarly Research Network, http://www.hindawi.com/isrn/materials.science/, 2012)
A comparative study of the traditional PZT ceramics and new single crystals is critical in selecting the best material and
optimization of transducer design for applications such as conversion of ambient vibrations into ...
Hepatoprotective potentials of water extract of Bauhinia purpurea bark against alcohol induced toxicity
(Academic Journals, http://www.academicjournals.org/SRE, 2011)
Bark of Bauhinia purpurea tree was collected and both the water and methanol extracts were prepared. Both extracts were tested for free radical scavenging activities and phenol content. Water extract was then tested for ...
Isolation of cultivable halophilic Bacillus sp. from the Makgadikgadi Salt Pans in Botswana
(Global Science Books, http://www.globalsciencebooks.info/, 2011)
Halophilic bacteria from the Makgadikgadi salt pans in north central Botswana were isolated using culture-dependent methods. Polymerase chain reaction (PCR) amplification of the 16S rRNA gene and phylogenetic analysis were ...
Structural, optical and fluorescence properties of wet chemically synthesized ZnO:Pd2+ nanocrystals
(SpringerOpen, http://www.inl-journal.com/, 2013)
This paper presents the structural, optical and photoluminescence properties of wet chemically synthesized ZnO:
Pd2+ colloidal nanocrystals characterised by X-ray diffraction, scanning electron microscopy/energy-dispersive ...
Optical properties of amorphous Sb2Se3:Sn films
(Taylor & Francis, 2010)
The measurements and analysis of optical transmission and far-infrared
(IR) reflectivity spectra of thermally evaporated Sb2Se3:Sn films are
reported. The refractive index and film thickness have been determined
from ...
Ionic and water relations of Sesuvium portulacastrum (L.)
(Academic Journals, http://www.academicjournals.org/, 2010)
The aim of this study was to assess the growth response of Sesuvium portulacastrum (L.) (a halophyte)
to various NaCl concentrations and hence determine how it is adapted to grow optimally under saline
conditions. S. ...
Fungi and their use in the possible control of Nematodes in Botswana soils
(Global Science Books, http://www.globalsciencebooks.info/, 2011)
A study assessing fungi isolated from three climatic regions of Botswana as a possible control for root knot nematodes (Meloidogyne spp.) affecting the tomato(Lycopersicon esculentum L. var. ‘Money maker’) crops was ...