Abstract: A digital radiography apparatus. The apparatus includes a support member having a first axis; a bucky; and a mounting member attached to the support member and supporting the bucky. The mounting members is adapted to move the bucky substantially along a second axis perpendicular to the first axis between a retracted position wherein the bucky is disposed proximate the support member to an extended position wherein the bucky is not disposed proximate the support member.

Abstract: A document indexing and retrieval system and method which assigns weights to the key words and assigns a relative value to pairs of key words (i.e. defines a relative relation on K.times.K) based on their frequency of occurrence and co-occurrence in the document data base. In response to a query both the weights and this relative relation are used to suggest additional and/or alternative key words which are very likely to find relevant documents. Documents are then ranked by number of hits adjusted for the weights of hit words and their relative values.

Abstract: A document indexing and retrieval system and method which assigns weights to the key words and assigns a relative value to pairs of key words (i.e. defines a relative relation on K.times.K) based on their frequency of occurrence and co-occurrence in the document data base. In response to a query both the weights and this relative relation are used to suggest additional and/or alternative key words which are very likely to find relevant documents. Documents are then ranked by number of hits adjusted for the weights of hit words and their relative values.