"Minerals", "petroleum" and "operations" in the Mineral and Petroleum Resources Development Act 28 of 2002 : a geologist as devil's advocate for a change? "

This article examines the meaning of "minerals", petroleum, "operations" and activities in relation to such substances to determine the ambit of the application of the Minerals and Petroleum Resources Development Act 28 of 2002, the type of rights necessary for such operations and activities and the ambit of these rights. The examination of the meaning of these concepts takes place with reference to prior definitions in statutes and also from a natural science and geology perspective. An attempt is made to show that the legal definitions do no always correspond with the geological meanings and the meanings on the ground. It is questioned whether in recent legislation why more reliance is not placed on input from geologists in the field.

Exposure to fumes and gases during welding operations

The exposure to fumes and gases is one of the hazards associated with welding operations. Apart from research conducted on the mechanism of fume and gas formation and the relationship between fume formation rates and common welding parameters, little is known about the exposure process during welding. This research project aimed to identify the factors that influence exposure, develop an understanding of their role in the exposure process and through this understanding formulate strategies for the effective control of exposure during welding. To address these aims a literature review and an experimental program was conducted The literature review surveyed epidemiological, toxicological and exposure data. The experimental program involved three approaches, the first, an evaluation of the factors that influence exposure by assessing a metal inert gas/mild steel welding process in a workshop setting. The second approach involved the study of exposure in a controlled environment provided by a wind tunnel and simulated welding process. The final approach was to investigate workplace conditions through an assessment of exposure and control strategies in industry. The exposure to fumes and gases during welding is highly variable and frequently in excess of the health based exposure standards. Exposure is influenced by a number of a factors including the welding process, base material, arc time, electrode, arc current, arc voltage, arc length, electrode polarity, shield gas, wire-to-metal-work distance (metal inert gas), metal transfer mode, intensity of the UV radiation (ozone), the frequency of arc ignitions (ozone), thermal buoyancy generated by the arc process, ventilation (natural and mechanical), the welding environment, the position of the welder, the welders stance, helmet type, and helmet position. Exposure occurs as a result of three processes: the formation of contaminants at or around the arc region; their transport from the arc region, as influenced by the entry and thermal expansion of shield gases, the vigorous production of contaminants, thermal air currents produced by the heat of the arc process, and ventilation; and finally the entry of contaminants into the breathing zone of the welder, as influenced by the position of the welder, the welders stance, helmet type, and the helmet position. The control of exposure during welding can be achieved by several means: through the selection of welding parameters that generate low contaminant formation rates; through the limitation of arc time; and by isolating the breathing zone of the welder from the contaminant plume through the use of ventilation, welder position or the welding helmet as a physical barrier. Effective control is achieved by careful examination of the workplace, the selection of the most appropriate control option, and motivation of the workforce.

Modelling and optimising operations of a plant using JIT philosophy

An Australian automotive component company plans to assemble and deliver seats to a car manufacturer on a "just-in-time" basis at its new plant. The research objective was to model seat assembly operations and apply Toyota goal chasing algorithm and user defined algorithm to balance workload among all the assembly workstations and areas.

International operations strategy of public sector organisations

Public sector organisations in many countries are internationalising their operations into other countries. This internationalisation frequently follows channels such as aid schemes offered by the country's government. An investigation was conducted to determine whether the four categories of stJ'ategy approach in Miles and Snow's typology could be used to categorise the internationalisation operation strategy approach of Australian public sector organisations. Qualitative data collected from eight Australian public sector organisations determined that a set of nine operations strategy dimensions identified from the literature applied to the internationalisation behaviours of Australian public sector organisations. The data also indicated that Miles and Snow's four categories of strategy could be used to describe the combined international operation strategy behaviours of Australian public sector organisations. In addition, it was found that the international operation strategy behaviours of Australian public sector organisations aligned with at least two (and in one case four) of Miles and Snow's strategy categories. Alignment with two of Miles and Snow's strategy categories was quite commonly identified in other empirical studies of this typology.

Influence operations and behavioural change

The intended outcome of Information Operations appears to be a favourable change (to the instigator) in attitudes or belief systems of the target, however, the relationship between attitude and behaviour is tenuous. Propaganda and other methods of ‘influence’ are difficult to assess as the cause and effect relationship is complicated. The short term effects of psychological warfare where force is used in conjunction with influence techniques can be easily assessed; at least at a superficial level. Even in the latter case, the actual causes and effects could be solely the force used or some other factors rather than the psychological techniques per se. Influence Operations attempt to win the hearts and minds of the target audience but, even if successful, the lasting effects of a campaign are problematic. It is further complicated because if a person has a particular view, it does not mean that the ensuing behaviours will reflect that view. Also, there is evidence that the use of force on one set of people produces attitudes and behaviours that instigate radical beliefs and behaviours in another set. So psychological warfare techniques on one group that may or may not produce compliant behaviour stimulates another group to empathise with the victims thus producing an overall practical negative influence. Influence campaigns cannot be separated from the physical environment in which they are executed. If good politics requires good influence campaigns then good influence campaigns require good politics to back them up. This paper will examine the relationships between short term influence campaigns and compare them with the more long term socialising effects such as early education, family and physical attributes that have on attitudes and beliefs which result in the development of such behaviours as terrorism.