The South African Journal of Industrial Engineering  

Susan Adendorff

As the 25th year of the existence of the South African Journal of Industrial Engineering (SAJIE) draws to a close, a new day has dawned for the Journal. The Journal has become an on-line, open-access publication accessible at http://sajie.journals.ac.za/p... see more

Schalk Claasen

Looking at the Industrial Engineering publishing landscape through the window of Google Search, an interesting panorama unfolds. The view that I took is actually just a peek and therefore my description of what I saw is not meant to be comprehensive.The A... see more

S Pretorius,H Steyn,JC Jordaan

Previous studies have attempted to determine how the success of South African IT projects related to the project management maturity of the organisations that executed the projects. The study reported in this article was conducted during 2010 in the engin... see more

RLM Kotze,JK Visser

The measurement of performance is an essential part of the management process. The planning function usually defines the goals and objectives for the business enterprise or division of the enterprise. The control function should monitor the performance me... see more

NS Kambo,A Rangan,E Moghimihadji

Approximations to various performance measures in queuing systems have received considerable attention because these measures have wide applicability. In this paper we propose two methods to approximate the queuing characteristics of a GI/M/1 system. The ... see more

WS Chin,MBC Khoo

The exponentially weighted moving average (EWMA) chart is effective in detecting small shifts. However, the EWMA chart is not robust enough to prevent errors in estimating the process standard deviation or a changing standard deviation. To overcome this p... see more

AP de Villiers,J Matthews,SE Visagie

An order picking system that requires pickers to move in a clockwise direction around a picking line with fixed locations is considered. The problem is divided into three tiers. The tier in which orders must be sequenced is addressed. Eight tour construct... see more

P Shahnazari-Shahrezaei,R Tavakkoli-Moghaddam,M Azarkish,A Sadeghnejad-Barkousaraie

Nurse scheduling is a type of manpower allocation problem that tries to satisfy hospital managers objectives and nurses preferences as much as possible by generating fair shift schedules. This paper presents a nurse scheduling problem based on a real case... see more

P Kaur,A Kumar

There are several methods for solving fuzzy critical path problems in which ranking approaches are used to compare fuzzy numbers. In this paper, some fuzzy critical path problems are chosen to show that the results obtained with fuzzy critical path method... see more

S Davrajh,G Bright,R Stopforth

The significance of inspection processes increases when producing parts with high levels of customer input. These processes must adapt to variations in significant product characteristics. Mass customisation and reconfigurable manufacturing are currently ... see more

CR Knowles,TH Becker,RB Tait

Selective laser melting (SLM) of Ti-6Al-4V has significant potential in the aerospace and biotechnology industries. SLM employs a focused laser beam to melt successive layers of metallic powder into complex components. This process can result in the gener... see more

K Nyembwe,DJ de Beer,JG van der Walt,S Bhero

In this paper, an initial assessment of the quality parameters of the surface finish and dimensional accuracy of tools made by metal casting in rapid prototyping (RP) sand moulds is undertaken. A case study from a local tool room, dealing with the manufac... see more

M Saxer,N de Beer,DM Dimitrov

In the modern metalworking industry, production moulds often have complex geometry, with undercut regions, small corner radii, sharp edges, deep cavities, or large cores. Conventional manufacturing process chains to machine these complex features are ofte... see more

Xiaojia Wang,Zhiqiang Chen,Shanlin Yang

Forecasting electricity consumption is one of the most important challenges in electricity system planning. This paper presents an improved semi-parametric regression model using the Student distribution function of residual to replace the nonparametric c... see more

,JH van Vuuren

In the generator maintenance scheduling (GMS) problem, a schedule is sought for the planned maintenance outages of generating units in a power system. The GMS model considered in this paper is formulated as a mixed-integer quadratic program assuming a rel... see more

AS Lourens,JA Jonker

SMMEs can make a critical and positive economic contribution to South Africa, and small- to medium-sized furniture manufacturers (SM/FMs) have the potential to contribute to economic growth, job creation, and GDP. However, the furniture industry has not s... see more

R Smit,NF Treurnicht,MM Blanckenberg

Most of South Africas table grapes are exported to the EU and the UK. In recent years, pre-packaged table grapes are now preferred in many European supermarkets. This increased demand has resulted in stringent quality standards, including the specificatio... see more