Department of Logistics

The existence of planar hypotraceable oriented graphs

Van Aardt, Susan A.; Burger, Alewyn Petrus; Frick, Marietjie (Discrete Mathematics & amp; Theoretical Computer Science, 2017)

A digraph is \emph{traceable} if it has a path that visits every vertex. A digraph D is \emph{hypotraceable} if D is not traceable but D−v is traceable for every vertex v∈V(D). It is known that there exists a planar ...

Automated examination timetabling with application to Stellenbosch University

Van Rooyen, Charles (Stellenbosch : Stellenbosch University, 2018-12)

ENGLISH SUMMARY : The examination timetabling problem (ETP) consists of scheduling the examination papers of students in such a way that no student is required to write two or more examination papers at the same time in ...

An evaluation of demand and capacity planning processes – a qualitative case study on completely-knocked-down vehicles at Mercedes-Benz Cars

Chemendy, Natascha (Stellenbosch : Stellenbosch University, 2018-03)

ENGLISH SUMMARY : Sales and operations planning (S&OP) describes an integrated business management process, enabling management to achieve cross-functional focus and alignment throughout an organisation. This process plays ...

Identifying temperature breaks in the export cold chain of navel oranges : a Western Cape case

Khumalo, Gculisile (Stellenbosch : Stellenbosch University, 2018-03)

ENGLISH SUMMARY : The South African citrus industry contributes significantly to the exportation of fresh fruit annually. South Africa is among the top-ten citrus producing countries in the world and it is the second largest ...

Meta-heuristic solution approaches to the portfolio optimisation problem

Senekal, Bryce Evans (Stellenbosch : Stellenbosch University, 2018-03)

ENGLISH SUMMARY : The portfolio optimisation problem is a well documented and researched combinatorial problem in the financial and operations research fields. The problem definition is defined as having to decide on which ...

High lift movement in a storage rack system

Baard, Pierre Stephan (Stellenbosch : Stellenbosch University, 2018-03)

ENGLISH SUMMARY : With the growing competitive global economy new techniques need to be adopted for distribution of goods. Companies are searching for efficient distribution methods to improve customer service. Due to an ...

Road infrastructure improvement for efficient utilisation of the agricultural potential : a case study of Morogoro, Tanzania

Fungo, Emmanuel (Stellenbosch : Stellenbosch University, 2018-03)

ENGLISH SUMMARY : The Morogoro region in Tanzania is endowed with diverse sources of water, fertile land and a good climate, suitable for crop cultivation. Only 29 percent of the arable area, however, is used for agricultural ...

Dietary intake of the urban Black population of Cape Town : the cardiovascular risk in black South Africans (CRIBSA) study

Steyn, Nelia P.; Jaffer, Nasreen; Nel, Johanna; Levitt, Naomi; Steyn, Krisela; Lombard, Carl; Peer, Nasheeta (MDPI, 2016)

Introduction: To determine dietary intake of 19 to 64 years old urban Africans in Cape Town in 2009 and examine the changes between 1990 and 2009. Methods: A representative cross-sectional sample (n = 544), stratified by ...

Affordability and subsidies in urban public transport: assessing the impact of public transport affordability on subsidy allocation in Cape Town

Piek, Jaco (Stellenbosch : Stellenbosch University, 2017-12)

ENGLISH SUMMARY : Cape Town is characterised by high commuting costs and high travel times due to a spatial mismatch between housing and jobs, as a result of apartheid planning policies. This dissertation investigated the ...

Metaheuristics for the selection and scheduling of jobs with time-dependent durations

Le Roux, Gavin James (Stellenbosch : Stellenbosch University, 2017-12)

ENGLISH SUMMARY : Please refer to full text for abstract.

Urban–rural inequalities in suicide mortality : a comparison of urbanicity indicators

Helbich, M.; Bluml, V.; De Jong, T.; Plener, P. L.; Kwan, M. P.; Kapusta, N. D. (Biomed Central, 2017-10-30)

Background: Urban–rural disparities in suicide mortality have received considerable attention. Varying conceptualizations of urbanity may contribute to the conflicting findings. This ecological study on Germany assessed ...

Designing travel behaviour change interventions: a spatiotemporal perspective

Van Dijk, Justin Tycho (Stellenbosch : Stellenbosch University, 2017-12)

ENGLISH SUMMARY : Against the background of unprecedented growth in private vehicle ownership and the entrenchment of the private car in everyday life, the past decades have seen a growing and ongoing academic and policy ...

Design of a weapon assignment subsystem within a ground-based air defence environment

Lotter, Daniel Petrus (Stellenbosch : Stellenbosch University, 2017-12)

ENGLISH SUMMARY : A number of assets on the ground typically require protection from aerial threats in a military ground-based air defence environment. The problem of defending these assets is twofold: Incoming aircraft ...

Aanpassing van grootte-mengsels tydens voorraadtoewysing in 'n kettingwinkel

Thom, Elmien; Visagie, Stephan; Matthews, Jason (LitNet, 2014-12)

Die toewysing van voorraad aan winkels is een van die belangrike prosesse in die bestuur van ’n kettingwinkel. In die klerebedryf behels toewysingsbesluite onder andere die bepaling van hoeveelhede van elke grootte ...

Simulation modelling as a decision support in developing a sterile insect-inherited sterility release strategy for Eldana saccharina (Lepidoptera: Pyralidae)

Potgieter, Linke; Van Vuuren, Jan H.; Conlong, Des E. (Florida Entomological Society, 2016)

ENGLISH SUMMARY : A user-friendly simulation tool for determining the impact of the sterile insect technique/inherited sterility technique (SIT/IS) on populations of the African sugarcane stalk borer, Eldana saccharina ...