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Prior to gummed envelopes, wafers were adhesive disks used for securing letters. Common wafers were made of fine flour, which was pressed between two heated plates of smooth iron. Transparent wafers were made of isinglass or gelatine.
Research Wafer
In Christian mythology, the host (from the Latin hostia, a sacrificial victim), is a term used for the bread (or wafer) and wine in the eucharist, as containing the body and blood of Christ. As the wafer alone is given to laymen in the Roman Catholic Church, as containing both the body and blood of the Redeemer, the term host is usually applied to the consecrated wafer.
Research Host
A junction detector is a sensitive detector of ionizing radiation in which the output is a current pulse proportional to the energy falling in or near the depletion region of a reverse-biased semiconductor junction. The first types were made by evaporating a thin layer of gold on to a polished wafer of n-type germanium; however, gold-silicon devices can be operated at room temperature and these have superseded the germanium type, which have to be operated at the temperature of liquid nitrogen to reduce noise. When the gold-silicon junction is reverse-biased a depletion region, devoid of charge carriers, forms in the silicon. Incoming ionizing radiation falling in this depletion region creates pairs of electrons and holes, which both have to be collected in order to give an output pulse proportional to the energy of the detected particle.
Junction detectors are used in medicine and biology as well as in space systems.
Research Junction Detector
AWIS is an abbreviation for Advanced Wafer Imaging System
AWIS is an abbreviation for Aircraft Warning Interface System
AWIS is an abbreviation for Automated Weather Information Systems
Research AWIS
WASER is an abbreviation for Wafer Scale Reconstruction
Research WASER
WSI is an abbreviation for Wafer Scale Integration
Research WSI
Tedstone Wafer (recorded in the Domesday Book as Tedesthorne) is a village in Herefordshire, England. The vilage is named after the le Wafre family who held the manor in the 13th century.
Research Tedstone Wafer
 
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The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
©1993 - 2009 The Probert Encyclopaedia
Southampton, United Kingdom
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