Quarry

Prize quarry

dogfish and a total allowable catch of zero for 2010. Scientists had recommended a zero catch for this year as studies suggest the northeast Atlantic population is on the verge of collapse. Catches for cod outside the North Sea, hake, monkfish, sole and whiting have also been agreed at levels higher than those recommended by EU advisors. The Bay of Biscay anchovy fishery is to remain closed but...

Development of a Sphagnum Bog on the Floor of a Sandstone Quarry in Northeastern Quarry in Northeastern Ohio

The vegetation and selected ground water characteristics of Silica Sand Quarry Bog, a pioneer bog forming in an abandoned sandstone quarry, were examined. After 70 years of development the bog mat measures 0.75 km in diameter and contains 35 species of vascular plants and 5 species of Sphagnum. Six species of vascular plants from the bog are on Ohio's rare plant list. The herbaceous layer is th...

Front Range Aggregates Optimizes Feeder Movements at Its Quarry

Front-end loaders extract sand and gravel (aggregate) from a pit and haul it to a feeder, which releases the aggregate onto a conveyor belt that is connected to a stockpile; the material is subsequently distributed to a processing plant. As mining progresses, the mining frontier moves farther away from the feeder, increasing loader cycle time. In turn, plant managers add loaders to maintain pro...

Quarry: Digging Up the Gems of Your Data Treasury

The design lifecycle of a data warehousing (DW) system is primarily led by requirements of its end-users and the complexity of underlying data sources. The process of designing a multidimensional (MD) schema and back-end extracttransform-load (ETL) processes, is a long-term and mostly manual task. As enterprises shift to more real-time and ’onthe-fly’ decision making, business intelligence (BI)...

A Quantitative Study of the Winter Plankton of Urschel's Quarry