799 research outputs found
Is the coal mining industry ready for women?
M.Tech. (Extraction Metallurgy)Abstract: There is a Sesotho proverb that says: “Mmangwana o tshwara thipa ka bohaleng”, which loosely translated means that “the child’s mother handles the knife on the sharp edge”. Women have always been in the forefront of stabilizing communities through cultivating lands, bringing up children and heading households in the absence of husbands working elsewhere. The active participation of females in underground mining has been very limited, due to legislation in most parts of the world. South African women were only allowed to work underground in the mines after the passage of the Mines Health and Safety Act of 1996 (No 29 of 1996). Despite their formal admission to work underground, women were still encountering problems in being integrated into the teams. Sexual discrimination and lack of proper suitable facilities for women are some of the challenges women are faced with. These inequalities and anomalies were addressed by the introduction of the Broad Based Socio Economic Empowerment Charter for the Minerals and Mining Industry, (Mining Charter) in 2002. The Mining Charter required various transformation measures to be implemented in the mining industry. This included the requirement for the mining companies to achieve 10% female representation, as a function of their total workforce, in technical fields, by the year 2009. In essence, where the mines employed women in staff positions historically, they are now..
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The Rise Of Copper Wire, Its Manufacture And Use To 1900: A Case Of Industrial Circumspection
This work critically examines the principal events and circumstances which influenced the course and rise of a crucial component in modern electrical technology - copper wire.
This material, through successive eras, has played a variety of roles and enjoyed a range of distinct applications. In charting the development, manufacture and use of copper wire, the thesis describes how in its earlier history a traditionally made product, applied to traditional purposes (in arts and trades themselves subject to change) evolved into something which, in property and quality, was entirely different - electrical conductors. By 1850, copper wire can be said to have long begun its exchange of a traditional role for a modern one, having by this time found application as a telegraph conductor, with varying degrees of success. In this respect, early trials in overland and submarine telegraphy, as well as experiments on metallic conductors, are shown to have been major influences in the development of copper wire as an electrical conductor. Hence the transition of copper wire from its traditional qualities and roles to those where it was fit for specialist electrical applications, is fully considered. Careful consideration also is given to the work surrounding the establishment of electrical standards which came out of the need for improved copper conductors.
Apart from the emphasis placed on reviewing those factors important in changing the quality and characteristics of traditional copper wire, an equal level of discussion is given over to considering the condition, growth and changing fortunes of the wire mills and the wire industry during its greatest period of change and expansion - 1750-1900. The pressures felt by the manufacturers during this time (technological, economic and, to some degree, social) are examined as too the state of the attitudes and policies, moulded by changing market demands and levels of prosperity.
The overall object of the study is to give meaning and significance to, and a reasonable interpretation of, the historically important events which shaped the manufacture and application of copper wire. As such, the study critically assesses not only the reasons for the changing fortunes of copper wire, but the failure of the manufacturing effort behind it to emerge, at least by 1900, as a separate and distinct industry
Attic Salt, 2021
https://digitalcommons.lmu.edu/atticsaltlmu/1007/thumbnail.jp
A History of Materials and Technologies Development
The purpose of the book is to provide the students with the text that presents an introductory knowledge about the development of materials and technologies and includes the most commonly available information on human development. The idea of the publication has been generated referring to the materials taken from the organic and non-organic evolution of nature. The suggested texts might be found a purposeful tool for the University students proceeding with studying engineering due to the fact that all subjects in this particular field more or less have to cover the history and development of the studied object. It is expected that studying different materials and technologies will help the students with a better understanding of driving forces, positive and negative consequences of technological development, etc
The Missouri Miner, February 05, 1997
https://scholarsmine.mst.edu/missouri_miner/3745/thumbnail.jp
Publications (Missouri Cooperative Extension Service, 1988)
This is a list of popular University of Missouri Publications.Revised 4/8
The Persistence of Technology
Repair, reuse and disposal are closely interlinked phenomena related to the service lives and persistence of technologies. When technical artefacts become old and worn out, decisions have to be taken: is it necessary, worthwhile or even possible to maintain and repair, reuse or dismantle them - or must they be discarded? These decisions depend on factors such as the availability of second-hand markets, repair infrastructures and dismantling or disposal facilities. In telling the stories of China's power grid, Canadian telephones, German automobiles and India's shipbreaking business, among others, the contributions in this volume highlight the persistence of technologies and show that maintenance and repair are not obsolete in modern industries and consumer societies
The Persistence of Technology: Histories of Repair, Reuse and Disposal
Repair, reuse and disposal are closely interlinked phenomena related to the service lives and persistence of technologies. When technical artefacts become old and worn out, decisions have to be taken: is it necessary, worthwhile or even possible to maintain and repair, reuse or dismantle them - or must they be discarded? These decisions depend on factors such as the availability of second-hand markets, repair infrastructures and dismantling or disposal facilities. In telling the stories of China's power grid, Canadian telephones, German automobiles and India's shipbreaking business, among others, the contributions in this volume highlight the persistence of technologies and show that maintenance and repair are not obsolete in modern industries and consumer societies
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