Virtually every household in a modern economy owns a refrigerator, a personal computer and an automobile. Given the inter-temporal nature of replacement decisions, the existing literature has resorted to the technique of ...

Dental replacement in Heterodontosauridae has been debated over the last five decades primarily on indirect evidence, such as the development of wear facets and the position of erupted teeth. Direct observation of unerupted ...

Five specimens of the late Permian cynodont Cynosaurus suppostus, inferred to represent an ontogenetic growth series, were imaged using X-ray microtomography in order to determine the pattern of tooth replacement for the ...

A reliability model has been developed for the optimal replacement of mining shovel cables on the basis of adherence to a replacement policy governed by number of hours. Change-out times are determined that minimize the ...

The aim of this prospective and blind clinical trial was to assess the effectiveness of sealing localized marginal defects of amalgam restoration that were initially scheduled to be replaced. A cohort of twenty six patients ...

For those construction companies engaged in projects where production is controlled by equipment availability, with tunneling as maybe the most extreme example, equipment replacement policies affect not just the cost of a ...