The North American and South African logistics cost calculation-time series are the two longest-running statistical series available worldwide. These calculations indicate that transportation’s contribution to logistics ...

A mathematical model is formulated for the population dynamics of an Eldana saccharina Walker infestation of sugarcane under the influence of partially sterile released insects. The model describes the population growth ...

The order picking process is often the single largest expense in a distribution centre (DC). The DC considered in this paper uses a picking line configuration to perform order picking. The number of pickers in a picking ...

ENGLISH SUMMARY : In this paper the e cient solvability of a class of nonlinear knapsack problems are investigated by means of the problem's necessary and su cient conditions. It is shown that, from the general theory, it ...

ENGLISH SUMMARY : In this paper a comparison of classical metaheuristic techniques over different sizes of petrochemical blending problems is presented. Three problems are taken from the literature and used for initial ...

ENGLISH SUMMARY : This paper traces the origin of the word logistics, outlines its conceptual evolution, and explains its meaning in contemporary usage. The background that led to the introduction of Logistics Management ...

ENGLISH SUMMARY : Numerous studies have analysed farm planning decisions focusing on producer risk preferences. Few studies have focussed on the farm planning decisions in an integrated croplivestock farm context. Income ...

ENGLISH SUMMARY : Background: Ports provide vital links in the maritime supply chains on which the trading of countries depend, and their efficiency and performance can contribute largely to the international competitiveness ...

ENGLISH SUMMARY : A procurement decision model for a video rental store is presented in this paper. The model is based on inventory management, but many classical inventory management principles are inappropriate since ...

Background: Logistics costs are most commonly measured on a national level. An understanding of the provincial logistics landscape can add significant value both to provincial and national policy interventions; such ...

AFRIKAANSE OPSOMMING : Hierdie artikel stel ’n heuristiese benadering voor om die verliese op voorraad met ’n dalende vraag en onbekende tydshorison te minimeer. Die twee metodes wat voorgestel word, gebruik ’n benaderde ...

A number of attempts were made during the 20th century to develop national freight flow information for South Africa. This paper discusses these contributions and attempts to identify the major reasons why the research did ...

South Africa’s annual State of Logistics survey indicates that the majority of dense, long-distance surface freight is transported by road, placing severe constraints on the country’s freight logistics infrastructure ...

ENGLISH SUMMARY : Background: Globally, in children the prevalence of overweight and obesity is increasing, and this is associated with an increased risk of non­communicable diseases in adulthood. There is a need to examine ...

One serious concern of health policymakers in South Africa is the fact that there is no national data on the dietary intake of adult South Africans. The only national dietary study was done in children in 1999. Hence, it ...

South Africa’s national railway management is considering the further closing of a number of branch lines due to profitability pressures from stakeholders. This paper cautions against a myopic approach to such closures. ...

ENGLISH SUMMARY : In this paper two mathematical programming models, both with multiple objective functions, are proposed to solve four related categories of job scheduling problems. All four of these categories have the ...

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 ...

This paper considersthe optimisation of the movement of a fixed crane operating in a single aisle of a distribution centre. The crane must move pallets in inventory between docking bays, storage locations, and picking ...

A real life order picking system consisting of a set of unidirectional picking lines is inves- tigated. Batches of stock keeping units (SKUs) are processed in waves defined as a set of SKUs and their corresponding store ...