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Dead-end Service Rating (Valves)

Valves rated for dead-end service can be placed at the end of a pipe without a cap (i.e., with one end at atmospheric pressure) and will not have any leakage of fluid across the valve at the service pressure rating of the valve

dBm

Decibels referenced to 1.0 mW

Daughter Card

Also called daughter board. A printed circuit board that plugs into another circuit board to provide extended feature(s). A daughter card accesses its parent card's circuitry directly through the interconnection between the boards. A mezzanine card is a kind of daughter card that is installed such that it lies in the same plane, but on a second level above its parent

Dataset

The set of inputs for a particular benchmark. There may be more than one dataset available for each benchmark each serving a different purpose (e.g., measurement versus testing) or configured for different problem sizes (small, medium, large, etc.

Datacom

Abbreviation for the data and communications industry

Data Frame

Consists of the destination address, source address, length field, logical link control (LLC) data, PAD, and frame check sequence

Data Center, Air-cooled

Facility cooled by forced air transmitted by raised floor, overhead ducting, or some other method; A data center with only air-cooled equipment

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