The cost of maintenance of mechanized and automated mining systems is too high necessitating efforts to enhance the effectiveness of maintenance systems and organization. For effective maintenance planning, it is important to have a good understanding of the reliability and availability characteristics of the systems. This is essential for determining the Mean Residual Life (MRL) of systems so ...

The value recovered from two mechanized bucking operations in the southeastern United States was compared with the optimal value computed using an individual-stem log optimization program, AVIS. The first operation recovered 94% of the optimal value. The main cause for the value loss was a failure to capture potential sawlog volume; logs were bucked to a larger average small end diameter than n...

Nacrtak Extracting logs from stump to landings causes extensive damages to forest stand and soil. In this research two parcels adjacent to each other were selected in order to assess the effect of traditional and mechanized methods of logging on regeneration and soil compaction. A skid trail and a mule trail with similar longitudinal slope, skidding direction and total volume of extracted wood ...

This research project was one of a number concerned with mechanized information retrieval carried out at INSPEC and supported by grants from, originally, the Department of Education and Science's Office for Scientific and Technical Information (OSTI) and, later, the British Library Research and Development Department (BLRDD). The first project, in the period 1967-69, had investigated the perfor...

The nineteenth century witnessed far-reaching changes in the nature and organization of industrial production. Traditional non-mechanized establishments artisan shops were displaced by mechanized water or steam-driven plants and extensive division of labor increased the average size of firms (Chandler 1977; Sokoloff 1984). In these new mills and "factories", the centralized nature of motive pow...

Concurrent higher-order imperative programming languages with continuations are very flexible and allow for the implementation of sophisticated programming patterns. For instance, researchers and practitioners have argued that the implementation of web servers can be simplified by using a programming pattern based on continuations. This programming pattern can, in particular, help simplify keep...

Peter Kasurak. Canada’s Mechanized Infantry: The Evolution of a Combat Arm, 1920-2012. 251 pp., plus figs., bibl., index. Vancouver: UBC Press, 2020. $32.95 (paperback). ISBN 978-0-7748-6273-8. Also available in e-book formats. https://www.ubcpress.ca/canadas-mechanized-infantry. Un article de la revue Scientia Canadensis (Photography: Science, Technology and Practice) diffusée par plateforme É...