I will start this treatise with a history of two major themes in data integration. In my opinion, the topic began with the major retailers in the 1990s consolidating their sales data into a data warehouse. To do this they needed to extract data from in-store sales systems, transform it into a predefined common representation (think of this as a global schema), and then load it into a data wareh...

In order to automate the scooping task, it is desirable that the resistive force acting on the bucket be obtained before the scooping is performed. The objective of this study is to derive theoretically the resistive forces acting on the bucket during scooping of piled rock fragments. First, the changes in the shape of the rock pile due to the penetration of it by the bucket are modeled. Based ...

In September 1998, Health Minister Allan Rock announced new federal hepatitis C funding of +50 million over five years for initiatives relating to community-based support, research, and disease prevention. Since then, broad cross-country consultations have taken place with individuals and their caregivers who are infected, or affected, by this disease; non-governmental organizations; provinces ...

. . . [T]he thing is, we treat racism in this country like it’s a style that America went through. Like flared legs and lava lamps. Oh, that crazy thing we did.We were hanging black people. We treat it like a fad instead of a disease that eradicates millions of people. You’ve got to get it at a lab, and study it, and see its origins, and see what it’s immune to and what breaks it down. (Chris R...

Once segmentation of 3D surface data of a rock pile has been performed, the next task is to determine the visibility of the surface rocks. A region boundary-following algorithm that accommodates irregularly spaced 3D coordinate data is presented for determining this visibility. We examine 3D surface segmentations of laboratory rock piles and determine which regions in the segmentation correspon...

Introduction: The process of lightning striking rock or sand is chemically very similar to impact events, especially micrometeorite impacts. Both processes cause a rapid rise in temperature followed by rapid isentropic cooling [1]. These processes result in glassy products such as fulgurites, tektites, and lunar regolith agglutinates that are often chemically reduced from their starting materia...