abstract— data grids are an important branch of gird computing which provide mechanisms for the management of large volumes of distributed data. energy efficiency has recently emerged as a hot topic in large distributed systems. the development of computing systems is traditionally focused on performance improvements driven by the demand of client's applications in scientific and business ...

It has been widely demonstrated by many research works that the distribution of a factory can condition its productivity. Because this, in Santiago, Chile, asked authors for advice to evaluate current situation company and what alternatives could be proposed improve performance increasing productivity without incurring too high costs. Among most important requirements requested was study design...

Abstract Micro pile hole is a kind of bored with diameter 100~400mm, which has been widely used in the field transmission line engineering recent years, and its formation usually uses DTH (Down-the-Hole) drilling rig. When rigs operate, slag discharge method to use compressed air provided by compressor blow muck directly from bottom ground. However, during process, it difficult out due large cr...