Browsing Faculty of Natural Science by Title
Now showing items 2531-2550 of 2565
-
Vanadium dioxide nanocomposite thin film embedded in zinc oxide matrix as tunable transparent conductive oxide
(University of the Western Cape, 2013)This project is aimed at fabricating a smart material. Zinc oxide and vanadium dioxide have received a great deal of attention in recent years because they are used in various applications. ZnO semiconductor in particular ... -
Variability and interannual trends in the climatology of radon-222 at two Southern Hemisphere coastal baseline sites
(University of the Western Cape, 2021)This thesis characterises and discusses two continuous coastal Southern Hemispheric (SH) atmospheric radon (222Rn) signals. Large-scale atmospheric circulation patterns are important components of the climate system ... -
Variances of purity within torsion-free Abelian groups
(University of the Western Cape, 1994)In 1921, Prufer introduced the concept of a pure subgroup of an abelian group. This concept, which is applicable only to abelian groups, proved to be a very useful one. Subsequently, this concept has sparked off numerous ... -
Vegetable farms in Cape Town: water quality and possible remediation techniques
(University of the Western Cape, 2012)Heavy metal contamination tends to be a problem in inner city agricultural areas and gardens. High levels of certain heavy metals have been found in the soil and vegetables in the Cape Town Metropolitan area. The aim of ... -
Vegetation relationships of priority conservation sites on the Cape flats
(University of the Western Cape, 1992)The physical environment of the cape Frats is outlined. The plant communities of twenty-one priority conservation sites are classified. Twenty-five communities, grouped into 15 associations, 8 alliances, 4 orders, 2 ... -
Venous thromboembolism risk assessment and prophylaxis in selected public sector hospitals in the Cape Town metropole
(University of the Western Cape, 2021)Background: Venous thromboembolism (VTE) is reported to be the leading cause of death in hospitalised patients worldwide. Thromboprophylaxis provides a well-established and evidence-based approach to preventing VTE. This ... -
Vertically aligned silicon nanowires synthesised by metal assisted chemical etching for photovoltaic applications
(University of the Western Cape, 2015)One-dimensional silicon nanowires (SiNWs) are promising building blocks for solar cells as they provide a controlled, vectorial transport route for photo-generated charge carriers in the device as well as providing ... -
Video annotation wiki for South African sign language
(University of the Western Cape, 2011)The SASL project at the University of the Western Cape aims at developing a fully automated translation system between English and South African Sign Language (SASL). Three important aspects of this system require SASL ... -
Violence against women in Burkina Faso: A quantitative and qualitative study
(University of the Western Cape, 2022)Many socio-anthropological and/or quantitative studies have attempted to address the issue of violence against women indirectly by focusing on the perceptions of the actors rather than on the fact of having suffered it ... -
Virtual human modelling and animation for real-time sign language visualisation
(University of the Western Cape, 2008)This thesis investigates the modelling and animation of virtual humans for real-time sign language visualisation. Sign languages are fully developed natural languages used by Deaf communities all over the world. These ... -
Visualization of microprocessor execution in computer architecture courses: a case study at Kabul University
(University of the Western Cape, 2010)Computer architecture and assembly language programming microprocessor execution are basic courses taught in every computer science department. Generally, however, students have difficulties in mastering many of the concepts ... -
Voice and rural wireless mesh community networks: a framework to quantify scalability and manage end-user smartphone battery consumption
(University of Western Cape, 2021)Community wireless mesh initiatives are a pioneering option to cheap ‘last-mile’ access to network services for rural low-income regions primarily located in Sub-Saharan Africa and Developing Asia. However, researchers ... -
Voice signature based Speaker Recognition
(University of the Western Cape, 2017)Personal identification and the protection of data are important issues because of the ubiquitousness of computing and these havethus become interesting areas of research in the field of computer science. Previously people ... -
Voice-signature-based Speaker Recognition
(University of the Western Cape, 2017)Personal identification and the protection of data are important issues because of the ubiquitousness of computing and these have thus become interesting areas of research in the field of com ... -
Voltammetric determination of metformin and its derivatives using Cu modified polymer electrode.
(University of the Western Cape, 2020)Diabetes, a worldwide disease, is classified into two types, type 1 or insulin-dependent and type 2 or noninsulin-dependent. Based on reports published by the International Diabetes Federation, the total number of those ... -
Waiting to die: staging of HIV positive people at the first HIV test - Region A, Nelson Mandela Metropole (January 1991-April 2000)
(University of the Western Cape, 2006)This project suggested that HIV people in Region A (Nelson Mandela Metropole, formerly Port Elizabeth) health district of the Eastern Cape, seek HIV testing when they are already in stages three (late disease) and four ... -
A water balance approach to groundwater recharge estimation in Montagu area of the Western Klein Karoo
(University of the Western Cape, 2005)The Western Klein Karoo-Montagu area is located in the mid-eastern of the Western Cape Province , South Africa. In most of the study areas within semi-arid climatic zone , groundwater plays an important role in meeting ... -
The water footprint of selected crops within the Olifants/Doorn Catchment, South Africa
(University of the Western Cape, 2014)Rapidly increasing global population is adding more pressure to the agricultural sector to produce more food to meet growing demands. However the sector is already faced with a challenge to reduce freshwater utilisation ... -
The water quality and ecological status of the Diep river catchment, Western Cape, South Africa
(University of Western Cape, 2004)The study illustrates the current ecological integrity of the Diep River system, based on the recent river health assessment using the South African Scoring System version 5 (2000-2003) and the water quality data ... -
Water quality trends in the Eerste River, Western Cape, 1990 - 2005
(University of the Western Cape, 2006)The Eerste River is a river system which has, over the years, been subjected to human interference. The purpose of this study was to investigatge temporal and spatial trends in the water quality of the Eerste River between ...