NASA’s Langley Research Center and Johnson Space Center are developing a solid freeform fabrication system utilizing an electron beam energy source and wire feedstock. This system will serve as a testbed for exploring the influence of gravitational acceleration on the deposition process and will be a simplified prototype for future systems that may be deployed during long-duration space mission...

Due to the wide acceptance of web services and its rapid spread, a number of mission-critical systems will be deployed as web services in the next years. The availability and efficiency of these systems has to be ensured in cases of failures and network disconnections. An example of web services for which availability and efficiency will be crucial issue is Auto Repair Service. It is critical b...

The efficiency of a tree improvement program can be greatly affected by the degree of seed efficiency in the nursery. The gains from tree improvement can be 50% greater from a nursery with 90% seed efficiency than from a nursery with 60% seed efficiency. However, because the nursery and tree improvement are usually operated by different divisions, the goals of the nursery manager may not includ...