Search Results - Iraqi, N.~
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Integrity, security aspects of data management
Published 1979“…Controlling access to the data base has been examined in more detail. A model system has been constructed in which the security controls check the authority of the user to deal with the different kinds of enquiries and permit the user to access the system, or prevent the user from doing so: New security procedures have been designed to provide: a. …”
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Silica fume concrete in hot and temperate environments
Published 1990“…Three grades of concrete strength were chosen (25,40 and 55 MPa) and the effect of four cement replacement levels (5,10,15 and 20%) of silica fume on concrete compressive strength was assessed. …”
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