College of Science, Engineering and Technology: Recent submissions

Now showing items 441-460 of 1998

Radionuclide liquid waste treatment of 68[superscript]Ge by graphene oxide based nanomaterials

Genu, Aurelia Khanyiswa (2019-06)

Radionuclide liquid wastes generated from nuclear facilities can affect humans and the environment, thus substantial attention for their safe management has been received worldwide. Treatment of radionuclide liquid wastes ...
Collaboration Towards a More Inclusive Society: The Case of South African ICT4D Researchers

Van Biljon, Judy; Naude, Filistea (Springer, 2018-08)

In this study, research collaboration in the context of South African Information and Communication for Development (ICT4D) researchers was investigated using a mixed methods approach. South Africa, a country with ...
Human-Computer Interaction for Development (HCI4D): The Southern African Landscape

Van Biljon, Judy; Renaud, Karen (Springer, 2019)

Human-Computer Interaction for Development (HCI4D) research aims to maximise the usability of interfaces for interacting with technologies designed specifically for under-served, under-resourced, and under-represented ...
Digital Re-imagination Colloquium 2018: Preparing South Africa for a Digital Future through e-Skills

Twinomurinzi, Hossana; Mawela, Tendani; Rampa, Kanye; Imail, Mymoena (National Electronic Media Institute of South Africa (NEMISA), 2018-03-13)

The theme of the 2018 colloquium, "Digital Re-imagination: Preparing South Africa for a Digital Future through e-Skills" sought to establish an innovative research network through providing a platform for government, ...
Visualization Criteria: supporting knowledge transfer in Incident

van Wyk, Quintus; Van Biljon, Judy; Schoeman, Marthie (IEEE, 2019)

Incident Management Systems (IMS) assist in managing resources in order to minimize fatalities and damage. Visual artifacts in an IMS can facilitate knowledge transfer between responders to an incident, however, ...
Open-distance Electronic Learning Environments: Supervisors’ Views on Usability

Lehong, Sewisha; Van Biljon, Judy; Sanders, I (IEEE, 2019)

Students in the open-distance and electronic learning (ODeL) environment often work in isolation and face challenges in accessing knowledge resources, especially when conducting research. To support these students in ...
Theoretical and experimental analysis of biomass gasification processes using the attainable region theory

Muvhiiwa, Ralph Farai (2018-06)

There are limits on performance of processes and reactions set by material balances and by thermodynamics. The interaction of these theoretical limits and how they influence the behaviour of reactions and equipment is of ...
An investigation of physics teachers’ technological pedagogical content knowledge and their learners’ achievement in electricity

Kotoka, Jonas Kwadzo (2018-01)

The purpose of this study is to investigate physics teachers’ (TPCK) and their learners’ achievement in electricity. A purposive sample of 42 Grade 11 physics teachers and 1423 learners participated in the study. An ...
An analysis of semantic data quality defiencies in a national data warehouse: a data mining approach

Barth, Kirstin (2018-09)

This research determines whether data quality mining can be used to describe, monitor and evaluate the scope and impact of semantic data quality problems in the learner enrolment data on the National Learners’ Records ...
Preparation of a high surface area zirconium oxide for fuel cell application

Sigwadi, Rudzani; Dhlamini, Mokhotjwa Simon; Mokrani, Touhami; Nemavhola, Fulufhelo (2019-05-22)

Abstract Stable and high surface area zirconium oxide nanoparticles have been synthesised by means of the hydrothermal method. The Brunauer–Emmett–Teller results show that a high surface area of 543 m2/g was ...
Information Technology and South Africa's Green Paper on Science and Technology

Blake, E (South African Computer Society (SAICSIT), 1996)

If an effective national system of innovation is the main proposal of the green paper then information technology (IT) has to play a very central role in that system. Supporting IT effectively will also mean supporting ...
A pragmatic approach to development information to provide service on a wide scale

Mncube, SS (South African Computer Society (SAICSIT), 1996)

The rapid technological growth in our time has produced an explosion of information. This, in tum, has spawned information systems based on the use of computers and automated systems. These mechanised devices with their ...
Design patterns for user interfaces

Warren, PR; Viljoen, M (1998)

This work reports on 23 third year student' s projects in which the user interfaces (UI) were found wanting. We show in which ways we regard the UI to be in error. However, an examination of the available literature on UI ...
Set-oriented functional style of programming

Mueller, CSM (1987)

A novel way of programming, which starts with specific details of a particular example and abstracts these details into generalised sets, is proposed. The whole program is constructed around the definition of these sets. ...
The relational organisation model

Laauwen, B (1996)

It has become clear that today's complex society of specialised individuals has a need for problem solving techniques using an integrated and interdisciplinary approach. The popularity of business re-engineering beliefs ...
Experience with a pattern-matching code generator

Mulders, MA; Serwy, DA; Van Biljon, WR (1987)

An implementation of a Graham-Glanville type pattern-matching code generator for the NRIMS systems programming language SCRAP is discussed. The simple heuristic algorithm on which the pattern matcher is based is presented ...
Implication in three-valued logics of partial information

Britz, K (2001)

In formal logic, both semantic entailment and the conditional connective are used to formalize the intuitive notion of implication. The former is defined in the meta-language of the logic, and the latter in the language ...
Finite-state computational morphology - treatment of the Zulu noun

Pretorius, L; Bosch, SE (2001)

Morphological analysis is a basic enabling application for further kinds of natural lan guage processing, including part-of-speech tagging, parsing, translation and other high-level applications. Automated morphological ...
A new algorithm for finding an upper bound of the genus of a graph

Carson, DI; Oellermann, OR (1991)

In this paper we discuss the problem of finding an upper bound on the genus of a graph. This problem has applications to circuit layouts. An electronic circuit may be modelled by a graph. By punching holes into the circuit ...
The development of a user classification model for a multi-cultural society

Streicher, M; Wesson, JL; Calitz, A (2001)

During the last ten years, a number of computerised testing systems have been developed without considering the users' level of computer proficiency. Students at the University of Port Elizabeth come from a diverse background, ...

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