Interference and How it is Propagated
Interference is the coupling of spurious voltages and currents into electrical signals as these signals are processed. Interference can cause errors at the point of signal sensing, couple noise into signal cables or it can reduce the performance of electronic hardware. Once a signal has been contaminated it is usually impossible to remove the interference. Power distribution and signal processing share the same environment. This environment includes all the grounded conductors in a facility as well as the power distribution itself. All the conductors that carry power or signal can conduct interference in both directions. This means that noise generated in one piece of hardware can couple to other hardware. Part II, of this three-part series, discusses how interference is generated and coupled, and suggests approaches to power distribution that can reduce the impact on users.

Increased Research Spurs the Need for IT Architecture, More Satellite Connectivity
As the number of South Pole researchers and the complexity of their research has increased over the years, so has the demand on the technical capabilities of the Amundsen-Scott station and its information infrastructure. Increasingly sophisticated research requires increasingly sophisticated facilities and the large quantities of data gathered each day need to be relayed to universities and laboratories back home for analysis. To address these needs, the National Science Foundation (NSF), which administers the station, has initiated a $15.5 million upgrade to the station's IT infrastructure.

Copyright Tradeline Inc. 2004
"Management Complexity Scoring is like credit scoring--where point-scoring of qualitative data is an old, established idea--except that here the objective is to predict and compare staffing levels for different management missions instead of the credit worthiness of borrowers."

A Case Study
A large silicon-valley technology firm with 12,000 associates at 10 campuses--all within 30 miles of one another--requires eight additional resources, namely (courier drivers), in order to transport mail and packages between locations. Conversely, an organization possessing a single campus with the same number of associates to support may not need drivers at all.

National Institutes of Health

University of California, Santa Barbara

Salt Lake City International Airport