Two of the main safety and health issues recognized during deep cut coal mining are methane and dust hazards. Advances in continuous miner technology have improved safety and productivity. However, these advances have created some environmental problems, notably more dust and methane being generated at the face during coal extraction. Results of studies performed in the last three decades concerning the face ventilation for deep cut mining showed very complicated airflow behavior. The specifics of flow patterns developed by the face ventilation systems presents significant challenge for analytical description even for equipment-free entry. Fortunately, there are methods, such as numerical simulations that could be used to provide an engineering solution to the problem. Computational Fluid Dynamics (CFD) codes have been successfully applied during the last decade using the power of Supercomputers. Although significant progress has been made, a benchmark industry oriented CFD code dedicated to face ventilation is still not available. The goal of this project is to provide the mining industry a software for CFD analysis and design of face ventilation systems. A commercial CFD system SC/Tetra Thermofluid Analysis System with Unstructured Mesh Generator, copyright © Cradle Co, was selected for a development platform. A number of CFD models were developed for the needs of this study including methane release, dust generation, 3D models of commonly used continuous mining machines, scrubbers and water spray systems. The developed models and the used CFD code were successfully validated in the part for methane dilution, using available data from small scale and full scale experiments. The developed models for simulation of dust control systems need to be validated in the future. The developed code automates all necessary steps needed for simulation of face ventilation systems, starting with the construction of a 3D model, generation of the computational mesh, solving and monitoring the calculations, to post-processing and graphical representation of the obtained results. This code shall allow mining engineers to design better and safer face ventilation systems while providing the Mine Safety and Health Administration (MSHA) a tool to check and approve the industry’ proposed ventilation plans.

The working class in the Ruhr was in the process of formation throughout this period, with considerable migration into the area from many parts of Germany and abroad. Mobility was also high within the Ruhr. The result was that the working class was unsettled and unhomogenous. Divisions were preserved and strengthened by company housing and by the important role of denominational organisations within the social and community life of the district. The experience of work provided a possible basis for working class unity. Mine work was hard, dangerous and often not particularly well paid. Discontent and conflict was expressed through absenteeism, job-changing and unplanned, spontaneous strikes. The issues were pay, hours and dignity at work. Solidarity, however, was limited so that strikes generally ended in defeat and disarray. The only significant concessions came not from the employers but from the Government. The labour movement tried to create a stronger basis for class unity through the creation of strong organisations encompassing the mass of workers. This in turn required the avoidance of contentious and divisive issues such as religion, and meant that precedence was given to organisation-building rather than to industrial militancy or political radicalism. This approach, which was typical of the labour movement in Germany, was thus in large measure a response to the problems of working class society in the Ruhr. The labour movement was unsuccessful, however, in its attempt to overcome working class divisions through the emphasis on organisation; only Government intervention in the years after 1914 offered a way forward.

Includes bibliographical references (p. 241-252) and index. / xxiii, 263 p. ill., maps 23 cm

In Australia, industrial relations research has focused almost exclusively on the major industrial relations institutions and their role in the determination of the rules of the workplace. Local workplace industrial relations and the interaction between worker and representatives and enterprise management has been a neglected area of research. This study attempts to rectify this situation. By focusing attention on the workplace a number of important questions are raised that have not been systematically addressed in Australian industrial relations research. In particular, what, if any, is the role of shop stewards in a centralised system dominated by unions, employers and tribunals organised on a state and national basis? If there is a role for shop stewards, how does this role manifest itself in terms of the stewards’ relationships with members, fellow shop stewards, union officials and management? Finally, what factors explain variations in role perceptions, and how does the adoption of a particular role affect the behaviour of shop stewards? (For complete abstract open the document)

Thesis (Ph. D.)--West Virginia University, 2008. / Title from document title page. Document formatted into pages; contains iii, 348 p. : ill., maps. Includes abstract. Includes bibliographical references (p. 340-348).

Thesis (Ph. D.)--Catholic University of America, 1931. / "Biographical note." Bibliography: p. 195-199.

Thesis (Ph. D.)--University of Wisconsin, Madison, 1999. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 338-350).

Thesis (Ph. D.)--University of Wisconsin--Madison, 1957. / Typescript. Abstracted in Dissertation abstracts, v. 17 (1957) no. 5, p. 999. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 228-232).

abstract: Drawing from Foucault's notion of heterotopias, my dissertation identifies and examines three distinct but related events that resignified (re-imagined) Chile during 2010, the year of its Bicentenary, namely: the Rescue of the 33 Miners trapped in the San José mine, the Chilean Military Parade performed in celebration of Chilean Independence, and the Mapuche Hunger Strike of 32 indigenous people accused of terrorism by the Chilean State. My central hypothesis states that these three events constitute heterotopias with strong performative components that, by enacting a utopian and a dystopian nation, denounce the flaws of Chilean society. I understand heterotopias as those recursive systems that invert, perfect or contest the society they mirror. In other words: heterotopias are discursive constructions and material manifestations of social relations that dispute, support, or distort cultural assumptions, structures, and practices currently operating in the representational spaces of a given society. In addition to following the six heterotopological principles formulated by Foucault, these case studies have performance as the central constituent that defines their specificity and brings the heterotopias into existence. Due to the performative nature of these heterotopias, I have come to call them performance heterotopias, that is, sets of behaviors that enact utopias in the historical world, the place in which we live, the site in which "the erosion of our lives, our time and our history occurs," as Foucault puts it. Here, performance would act as the interface, the point of interaction, and suture between the conceived, the perceived and the representational spaces each heterotopia articulates. Thus, a performance heterotopia would be a particular type of heterotopia which is enacted through performance. A relevant aspect that emerged from my research is that heterotopic places not only mirror, contest, and compensate their own host society, but also refer to, and intersect with other contemporaneous heterotopias enacted in that society. In my conclusion I suggest that such interactions also happen between heterotopias that emerge in different countries and cultures. If so, the mapping of utopias enacted in the macro socio geographies of Latin American countries could offer new perspectives to understand the sociopolitical processes that are underway in the region. / Dissertation/Thesis / Ph.D. Theatre 2011

The aim of this research is to investigate intellectual development of a group of Black mineworkers on a South African gold mine, in the light of their exposure to a technical industrial environment. The research was conducted within a Piagetian framework and attempts to establish:- 1. A conceptual profile which would highlight the subject's conceptual abilities in relation to job skill requirements. 2. An empirical analysis of combined Behavioural and 3. Explanatory responses to support the hypothesis that experienced Black mineworkers should perform better on the diagnostic battery than novices: the main reason for this being the contention that conceptual development is facilitated by cognitive adaptation to the demands of a selectively different technological environment. Whether the battery of Piagetian conservation tasks could be evaluated for use as conservation scales with sound statistical properties. A random sample of fifty six Black mine workers was realised and their performance indicated that:- a ) The concept of Force is not actively developed by mining. b) There was no significant difference in the performance of Novice and Experienced subjects. c) The diagnostic battery in its present form is inadequate and would have to undergo some relative modifications. d) Conceptual profiles showed that concept areas tapped were not developed past the stage of Concrete operations, and that in some instances subjects did not conserve concepts which are relevant to the occupation they were selected for on the Classification Test Battery. e) Piagetian methodology could only be selectively applied to the mining industry for purposes of selection and placement. f) Conservation scales were not realised because of anomalies found in the composition of sub-concepts in the battery. / KMBT_363 / Adobe Acrobat 9.53 Paper Capture Plug-in