data measurement
81Computer Measurement Group — The Computer Measurement Group (CMG), founded in 1974, is a worldwide non profit organization of data processing professionals whose work involves measuring and managing the performance of computing systems. In this context, performance is… …
82Nexus (data format) — For the Nexus format used in phylogenetics, see Nexus file. NeXus is a common data format for neutron, x ray, and muon science. It is being developed as an international standard by scientists and programmers representing major scientific… …
833D optical data storage — is the term given to any form of optical data storage in which information can be recorded and/or read with three dimensional resolution (as opposed to the two dimensional resolution afforded, for example, by CD). [ Three Dimensional Optical Data …
84Computer data storage — 1 GB of SDRAM mounted in a personal computer. An example of primary storage …
85Ancient Egyptian units of measurement — The Ancient Egyptian unit of linear measurement was known as the Royal Cubit, was maintained as 523.5mm (20.61 inches) in length, and was subdivided into 7 palms of 4 digits each, giving 28 digits. This measurement standard was used from at least …
86Materials data management — Materials data is a critical resource for manufacturing organizations seeking to enhance products, processes and, ultimately, profitability. This data describes the properties and processing of the materials that these organization uses metals,… …
87Missing data — In statistics, missing data, or missing values, occur when no data value is stored for the variable in the current observation. Missing data are a common occurrence and can have a significant effect on the conclusions that can be drawn from the… …
88Testing hypotheses suggested by the data — In statistics, hypotheses suggested by the data must be tested differently from hypotheses formed independently of the data.How to do it wrongFor example, suppose fifty different researchers, unaware of each other s work, run clinical trials to… …
89National Snow and Ice Data Center — The National Snow and Ice Data Center, or NSIDC, is a United States information and referral center in support of polar and cryospheric research. NSIDC archives and distributes digital and analog snow and ice data and also maintains information… …
90OPC Historical Data Access — This group of standards, created by the OPC Foundation, provides COM specifications for communicating data from devices and applications that provide historical data, such as databases. The specifications provides for access to raw, interpolated… …
