’n Vriendelike beroep word op alle aanwesiges gedoen om selfone af te skakel en nie die saal tydens die plegtigheid te verlaat nie om sodoende te verseker dat die verrigtinge sonder ontwrigting verloop. Akademiese prosessie kom die saal binne. U word versoek om te staan terwyl hulle die saal binnekom en te bly staan vir die sing van die Nasionale Lied.
Sing van die Nasionale Lied (kyk binneagterblad). Neem asseblief daarna u sitplekke in.
Konstituering deur die Visekanselier.
Verwelkoming deur die Visekanselier en dr N Cezula.
Voorstelling van kandidate wat kwalifikasies ontvang deur die dekane van die betrokke fakulteite en toekenning van kwalifikasies deur die Visekanselier.
Voorstelling van kandidate vir Kanselierstoekennings en oorhandiging van die toekennings deur die Visekanselier.
Sluiting deur die Visekanselier.
Akademiese prosessie verlaat die verhoog.
Die aanwesiges word versoek om te bly staan totdat die akademiese prosessie uitgestap het.
PROGRAMME FOR THE SEVENTH CEREMONY
THE FACULTIES OF THEOLOGY AND ENGINEERING
To help ensure that the proceedings run their course without disruption, will all those present kindly keep their cell phones switched off, and refrain from leaving the hall, while the ceremony is in progress. Entrance of academic procession into the hall. You are requested to stand while it enters, and then to remain standing for the singing of the National Anthem.
Singing of the National Anthem (see inside back cover). Thereafter, please be seated.
Congregation formally constituted by the Vice-Chancellor.
Welcome by the Vice-Chancellor and Dr N Cezula.
Presentation of candidates receiving qualifications by the deans of the respective faculties and conferment of qualifications by the Vice-Chancellor.
Introduction of candidates for Chancellor’s Awards and presentation of awards by the Vice-Chancellor.
Closing by the Vice-Chancellor.
The academic procession leaves the stage.
Those present are requested to remain standing until the entire academic procession has left the hall.
The candidate’s research engages some of the ethical implications re- lated to the theological concept of the presence of the kingdom as God’s performative action in history by reconsidering the role of the linguistic character of the Biblical text from the perspective of Speech Act Theory. In this regard, Christian ethics is not to be viewed simply as relating to the norms of human behaviour, or moral principles that are extrapolated from the Biblical text. Rather, the performance of ethics can be considered from the perspective of God’s action and intent in history (illocutionary force) in relation to the Biblical text. Supervisor: Dr DA Forster
CONRADIE, Jacobus Petrus (Nuwe Testament)
Die interpretasie van die vervullingsitate in Matteus aan die hand van ironie as pragmatiese taalkomponent
Die studie het die voorkoms van narratiewe, dramatiese en Sokratiese ironie in twaalf vervullingsitate van die Matteus-evangelie vanuit die perspektief van die pragmatiek bestudeer. Ironie kom daarin voor wanneer die veronderstelde leser daarvan oor meer inligting as die karakters daarin beskik. Die voorkoms daarvan in Matteus se ver- vullingsitate is belangrik omdat dit ’n meerdere betekenis as die letter- like daarin na vore bring. Die studie toon aan hoe ironie in die ver- vullingsitate in Matteus se geboorteverhaal, in aansluiting by dié daarbuite, funksioneer as ’n indirekte illokutiewe spreekakte wat die karakter en taak van die Messias ingrypend herdefinieer vir sy lesers. Promotor: Prof MJ Nel
KASSA, Friday Sule (Old Testament)
Hospitality and its ironic inversion in Genesis 18 and 19: a theological-ethical study
This dissertation breaks new exegetical ground by identifying irony as a rhetorical technique to interpret the references to hospitality in Genesis 18 and 19. This ironic reading critiques the traditional link between hospitality and kinship that exists in the Old Testament and in many African cultures. It challenges the reader to be held accoun- table towards the vulnerable ‘other’ (going beyond kinship) and to shoulder the responsibility to establish justice for all strangers, migrants and so-called aliens in the midst of faith communities who often struggle to rid themselves of exclusive kinship concerns. Supervisor: Prof HL Bosman
KIM, Pilkyun (Missiology)
Christian discipleship as power encounter with South Korean indigenous leaders: an interculture theological study
Intergroup relations and power dynamics between indigenous Korean leaders and Christians have influenced cultural and religious practices and religious transformations positively and negatively in South Korea. The dissertation explores how the dynamics have shaped an ethos and practice of mutual rejection, but also mutual acceptance, learning and critique of Christians and indigenous leaders. The intercultural theo- logical framework develops “life-together” and relationality (sangsaeng) in indigenous religion and self-emptying (kenosis) in Christianity to integrate religious and social dimensions of the ethos. It reconstructs and applies ”power encounter” to assess a Christian practice of trans- formational discipleship which includes particularities of both indige- nous and Christian healing and rituals. Supervisor: Prof DX Simon
OOSTHUIZEN, Johannes Jacobus (Practical Theology)
Restoring the circle of courage in the lives of youth at risk through mentoring
This study addresses the lack of effective intervention programmes for youth at risk, especially in South Africa. The objective was to evaluate the implementation of an intervention programme that utilises the circle of courage theory as basis. According to the circle of courage theory-constructive relationships are key to facilitate the healthy development of young people. Such relationships are often lacking in the lives of youth at risk and therefore the candidate argues that mentoring should be a core element in intervention programmes. Several youth ministry models were evaluated and the incarnational model was suggested as more suitable to minister to youth at risk.
Supervisor: Prof A Cloete
PAULO, Bonifacio (Old Testament)
The centralisation of the worship of Yahweh according to the Jewish and
Samaritan Pentateuchs: a textual and theological study
The candidate examined the different views on the centralisation of Yahweh worship in Deuteronomy 12 as reflected in the Jewish and Samaritan Pentateuch traditions. In contrast to the Jewish Pentateuch’s claim of Jerusalem as central place of worship and the priority of the Davidic line of election, the Samaritan Pentateuch claims this honour for the sanctuary on Mount Gerizim near Shechem, and argues in favour of the Mosaic tradition. The candidate investigated the historical, literary and theological motivations behind these different wordings, and concluded how these differences can be accommodated in Bible translation projects.
Cosmogonic presuppositions in Hebrews and its first-century philosophical context
This multi-methodological research comprising historical-grammatical, socio-rhetorical and content analysis considers the relationship be- tween Hebrews’ cosmogonic presuppositions and its first-century philosophical context. The cosmogonic presuppositions present in first-century philosophy focussed on four main aspects: literary components, Creator, procedure of creating, and creation itself. The main finding is that Hebrews embraces a new cosmogonic perspective for its time, built on coherent presuppositions developed mostly in its reading of Jewish literature, among which the Scriptures of Israel, and particularly Genesis 1-3, takes a predominant place. This new per- spective stands apart from first-century cosmogonic presuppositions which were a diverse mixture of ideas. Supervisor: Prof J Punt
VAN TONDER, Helené (Ecclesiology)
Recollection and confession: the Heidelberg Catechism as a site of memory in the Dutch Reformed Church, 1862-1963
This dissertation provides an in-depth analysis of how the Heidelberg Catechism – an influential 16th century Reformed confessional document – functioned as a site of memory in the Dutch Reformed Church from 1862 to 1963. By drawing in part on insights from memory studies, the inquiry highlights the dynamic entanglement of recollection and confession in processes of identity construction. With reference to various pivotal episodes in which the Heidelberg Catechism was remembered (and forgotten), the study examines and explicates the characteristics and effects of the entanglement of recollection and confession on the identity of the Dutch Reformed Church during the stated period.
Supervisor: Prof RR Vosloo
External Supervisor: Prof G Harinck
External Co-supervisor: Prof WL van der Merwe
WIEGAND, Heinrich Johann (Praktiese Teologie)
Evangelisasie deur sport- en rekreasiebediening:
‘n prakties-teologiese ondersoek
Die uitvoering van die missio ecclesiae (Matt 28:16–20), wat Christus aan die kerk toevertrou het, word weens die kerk se gebrek aan evangelisasie aan bande gelê. Weens dié rede behoort die aanwending van sport- en rekreasie-aktiwiteite as evangelisasiemetode ondersoek te word. Die Suid-Afrikaanse sport- en rekreasiebediening, Sport vir Christus Aksie Suid-Afrika (SCAS), is die onderwerp van hierdie studie. Die studie stel ’n praktykgerigte kernmodel met die Coram Deo as die primêre doel voor oë. Deur ’n prakties-teologiese ondersoek iden- tifiseer die studie vier benaderings tot sport- en rekreasiebediening, te wete die sleutel-, medium-, aflos- en platform-benaderings, wat tot die bevordering van evangelisasie kan bydra.
Promotor: Prof IA Nell
Medepromotor: Prof M Nel
Faculty of Engineering
AKURU, Udochukwu Bola (Electrical Engineering)
Design optimisation and performance evaluation of flux switching machines for geared medium-speed wind generator drives
The study proposed a novel approach for the multi-objective design optimisation of geared medium-speed flux switching wind generators, with the major emphasis on rare-earth-free designs for industrial-scale applications. Based on finite element analyses, whereby torque density, torque ripple and power factor were prioritised, multiple design options are provided for the designer to make informed selections. Generally, as the power level shifts from 10 kW to 3 MW, imp rove ments in terms of increased torque density and reduced torque ripple were obtained for the machines considered in the study. A 10 kW prototype was manufactured and tested, thereby confirming the finite element calculations. Supervisor: Prof MJ Kamper
AMUHAYA, Lilian Livutse (Electrical Engineering)
Design and optimisation of direct-driven PM variable-flux synchronous generators for directly grid-connected slip-synchronous wind turbines
In this study a novel variable-flux permanent magnet synchronous generator topology for direct-drive wind turbine applications was developed. This generator topology allows for variable-flux capability as well as reduced active mass. A unique optimisation procedure was developed to design the permanent magnet to produce the main flux and the rotor field coils to produce the necessary flux for grid com- pliance. This design topology is a first to be demonstrated in a directconnected grid-compliant wind generator system. The study showed through analysis and tests that the deep-buried permanent magnet design with rotor field coils is a viable hybrid solution for gridconnected generators. Supervisor: Prof MJ Kamper
BEYERS, Wilhelm André (Mechanical Engineering)
Predicting structural behaviour of pressure vessels using large-scale meta-modelling applied to plug type heat exchanger header boxes
Plug type header boxes are predominantly designed according to the ASME’s Boiler and Pressure Vessel Code, which is widely known to be conservative. In this study a less conservative analysis tool was de- veloped, in the form of a meta-model. The tool provides designers with real-time predictions of the stresses in a header box, with an accuracy similar to a detailed finite element analysis. Designers can use this model to search for optimal designs and identify what the structural effects are when individual header box dimensions are changed in order to promote a better understanding of these structures. Supervisor: Prof G Venter
HOWARD, Eduan (Electrical Engineering)
Design optimisation of reluctance-synchronous machines: a motor and generator study
The study focused on the design optimisation of reluctancesynchronous electrical machines for motor and generator drive appli- cations. The study proposes techniques that can be implemented in the design process to minimise or remove the inherent weaknesses of the machine. Some of the machines designed using these techniques were manufactured and tested, to validate the proposed design method o logy. The study also focussed on the design of reluctance-synchronous machines in the high power range for wind generator applications. It was found that this type of machine can be used in high power applications with competitive efficiency and power factor performance. Supervisor: Prof MJ Kamper
Small and medium enterprises contribute substantially to the South African economy. However, they are exposed to highly volatile en- vironm ents, which threaten their survival. Systems respond to stressors in one of three ways: by being fragile, resilient/robust or, as an alternative, anti-fragile. Anti-fragility is the response through which small and medium enterprises can prosper in times of volatility. The study sees an enterprise as a complex adaptive system, which is comprised of subsystems and components that align to fulfil the enterprise’s purpose. A framework is proposed, which guides the enterprise on how to organise itself for improved anti-fragility.
Supervisor: Prof CSL Schutte
Co-supervisor: Mr KH von Leipzig
KRAUSE, Willie (Industrial Engineering)
An approach to enable and advance open innovation for small and medium-sized enterprises
Available research shows that, for small and medium-sized enterprises (SMEs), there are benefits to using open innovation. However, current open innovation practices tend to be ad hoc in nature and are usually not managed as a formalised approach. This study developed an approach that SMEs can use for the implementation, execution and improvement of open innovation within their organisations. The approach consists of an open-innovation life cycle framework, as well as design propositions with detailed descriptions filling out the framework and a toolset of templates that help users better interact with the content of the approach.
Supervisor: Prof CSL Schutte
LOOTS, Erik (Industrial Engineering)
Employee incentives engineering: towards a decision support system
Recognising that the performance of organisations is adversely affected by employees who are not appropriately incentivised, and that existing research is extensive yet difficult to use, this research contemplated how organisations could use the existing literature to enhance organisational performance. This was addressed through the develop- ment of a decision support system (DSS) that can be used to improve an organisation’s employee incentive practices. The DSS was built around the thirteen Primary Incentive Plan Design Considerations (PICs). The PICs are a unique amalgamation from influential research papers that deal with incentives and motivation from various disciplines.
Supervisor: Prof CSL Schutte
MOLTENO, Matthew Robert (Mechanical Engineering)
Measuring fracture properties using digital image and volume correlation: decomposing the J-integral for mixed mode parameters
Materials’ resistance to brittle fracture is widely used to estimate safe operating parameters for mechanical structures. Non-contact measurements using digital image correlation allow the extraction of these parameters from structures in situ, accounting for their complex geometry and loading, which is not possible with standard fracture toughness tests. The developed framework extracts the fracture toughn ess from 3D image reconstructions of the surface, and x-ray image reconstructions in the volume, in the separate opening, sliding and shearing fracture modes required for structural integrity eva- luations. The work aims to supplement standard testing procedures, and accelerate the use of full-field optical measurements in South African industries.
PRETORIUS, Gerhardus Dirk Petrus (Industrial Engineering)
An interactive supply framework to improve the successful outcome of the acquisition of a complex weapon system
This study investigated the contribution of various enabling human factors to the success of a project to order a complex weapon system, during the design acquisition phase when interacting with a customer. An interactive supply framework was developed and successfully applied in a case study that investigated six different projects. These projects supplied military vehicles to international armed forces over a ten-year period in three countries. The insights gained from the study will assist practitioners involved in similar projects to improve client interactions and nurture proactive relationship strategies. The success rate of a project will thus be increased or accelerated.
Supervisor: Prof ND du Preez
Co-supervisor: Dr L Louw
SIMUSHI, Saboi Sitwala Joseph (Civil Engineering)
Project management strategy: an integrated model of managing large projects
This dissertation investigated how time and cost overruns develop in large infrastructure projects. Previously, overruns were thought to be caused by independent causes in the project environment. In this research, it was established that the root cause originates from the external and extended to the organisation and project environments, implying that a solution should include the management of the external and organisation environments. The novel solution is to establish a project implementation organisation, and a project risk management agency, to increase the project management role in the client or- ganisation, and to improve the concept formulation process in the project environment. Supervisor: Prof JA Wium
SORGDRAGER, Albert Johan (Electrical Engineering)
Design of line-start permanent magnet synchronous machines using the Taguchi method
This study focused on the development of a comprehensive design optimisation framework for line-start permanent magnet synchronous machines (LS PMSM), which could effectively consider both steadystate and transient synchronisation performance objectives. The use of the Taguchi method for robust design was adopted and improve- ments were implemented to enable its use in an iterative optimisation process. An analytical synchronisation criterion was formulated and used as a quantifiable performance objective in the design optimisation. It has been shown that the proposed framework can effectively realise a balanced and robust design for the most commonly used LS PMSM rotor topologies. Supervisor: Prof R-J Wang
External Co-supervisor: Dr AJ Grobler
TERBLANCHE, Stephanus Esias (Industrial Engineering)
Resource-constrained project scheduling models and algorithms applied to underground mining
In this dissertation, the challenges of underground mine planning were addressed by employing resource-constrained project scheduling models and algorithms. Modifications to an existing resource-flow for- mulation were proposed in order to accommodate mining-specific modelling requirements. A Benders decomposition approach was followed for the purpose of improving the computation of feasible solutions when considering large problem instances. Separation subroutines and a primal heuristic were proposed to facilitate the decomposition within a branch-and-cut framework. Computational results, based on randomly generated data and real data from a South African underground mine, demonstrated the superior scalability of the newly proposed algorithmic approaches. Supervisor: Prof JH van Vuuren
VAN DER MERWE, Michael David (Industrial Engineering)
The base of the pyramid: a growth framework for SMME action
The base of the pyramid (BOP) is a term that denotes the poorest socio-economic segment of a population. Profitable small-, mediumand micro-sized enterprise (SMME) action at the BOP is widely accepted as an ideal route to inclusive development since this views the BOP as customers, co-creators, clients and employees. Further- more, an association has been shown between high enterprise growth and specific enterprise attributes, behaviours, strategies and decisions, i.e. growth factors. A framework was designed by determining, amending and amalgamating these factors within the BOP context to promote enterprise action, which results in improved growth and sustainable poverty alleviation.
Supervisor: Prof CSL Schutte
Co-supervisors: Mr KH von Leipzig and Prof SS Grobbelaar
WEYERS, Morne Alfred (Industrial Engineering)
An investigation into the application of the supply chain operations reference model for the service supply chain for standardised back office services
The service industry has grown tremendously, drawing more attention to services and optimal service management practices. Despite its importance, limited research has been conducted on service supply chain management (SSCM). Previous research suggests that the concept may not apply easily to services. This study makes a novel contribution by developing a new service classification framework, as well as showing that a supply chain model (SCM) can be successfully adapted and applied from manufacturing by using a structured approach. This will enable practitioners to gain access to mature SCMs from manufacturing and better apply them to services, specifically standardised back-office services. Supervisor: Dr L Louw
ZERANKA, Stephan (Civil Engineering)
Steel fibre-reinforced concrete: multi-scale characterisation towards numerical modelling
Steel fibre-reinforced concrete (SFRC) applications have increased in quantity and variety. Methods for material characterisation constitutive modelling and design must be improved in order to facilitate this demand. Limited literature is available on the direct shear response of SFRC and even fewer investigations attempt to link the transverse pullout behaviour of individual fibres to the composite response. This dissertation designs, fabricates and executes experimental tests to characterise the Mode I and Mode II fracture at the micro- and mesoscale of observation. A material model was developed and validated numerically. An empirical model reconciled the fibre component with the Mode II meso-scale response. Supervisor: Prof GPAG van Zijl
DAVIDSON, David Bruce (Electronic Engineering)
Contributions to engineering electromagnetics
This dissertation presents an overview of the publications of the can- didate and his research group on engineering electromagnetics, in particular computational electromagnetics (CEM). This included pioneering work on high performance computing in CEM using trans- puters; work on the theory and application of finite difference and finite element methods, focussing especially on higher-order solutions; error estimation in numerical solutions; applications to radio astro- nomy instrumentation design and development; and recent work on near-field antenna metrology and wave propagation. The candidate’s research significantly advanced the field of engineering electro magnetics and has significantly impacted on local and international industry via the contributions to new simulation software.
Supervisor: Prof P Meyer
ANDER KWALIFIKASIES OTHER QUALIFICATIONS EZINYE IZINGQINI-MFUNDO